Fresh air circulation system for energy-saving building and control method

Abstract

The invention relates to a fresh air circulation system for an energy-saving building, a control method, equipment and a medium. The system comprises a data collection module, a control module, a motor module and a heat exchange module, the data collection module is used for collecting a user control instruction, indoor environment information data and outdoor environment information data, and the user control instruction comprises a fresh air operation instruction; the control module is used for acquiring and analyzing the fresh air operation instruction to obtain preset indoor environment parameters; based on the preset indoor environment parameters, the indoor environment information data and the outdoor environment information data, a wind pressure adjusting instruction and a wind resistance adjusting instruction are generated; the motor module is used for providing air pressure required by air circulation according to the air pressure adjusting instruction; the heat exchange module is used for achieving heat exchange between air flowing into a room and air flowing out of the room. The heat exchange module comprises a valve control assembly. By adopting the method, the electric energy efficiency and the use performance of the fresh air circulation system can be improved.

Description

Technical Field

[0001] The present invention belongs to the field of fresh air systems, and in particular relates to a fresh air circulation system and a control method for energy-saving buildings. Background Art

[0002] Energy-saving buildings refer to buildings that, during the design, construction and use of buildings, adopt efficient energy utilization strategies and technologies, adapt to climate characteristics and natural conditions, and use overall structures with higher thermal insulation and airtightness to comprehensively reduce energy consumption and improve energy utilization efficiency, while ensuring the comfort, economy and environmental protection of the building.

[0003] Energy-saving buildings have a higher overall structure with better thermal insulation and airtightness, which can greatly reduce the energy consumption of building heat conduction and create a stable thermal environment for the fresh air circulation system. The fresh air circulation system continuously introduces filtered and purified outdoor fresh air into energy-saving buildings. Combined with the good thermal insulation performance of energy-saving buildings, it maintains stable and comfortable indoor temperature and humidity, significantly reducing carbon emissions and energy consumption during the life cycle of the building.

[0004] However, with the current traditional methods, when the difference between indoor and outdoor environmental parameters is relatively low, the heat exchange mechanism of the fresh air circulation system has the problem of over-processing, which wastes the air circulation power of the fresh air circulation system. It is necessary to further energy-saving design of the fresh air circulation system used in energy-saving buildings to improve the power efficiency and performance of the fresh air circulation system. Summary of the invention

[0005] Based on this, it is necessary to provide a fresh air circulation system, control method, computer equipment and storage medium for energy-saving buildings that can improve the power efficiency and performance of the fresh air circulation system in response to the above technical problems.

[0006] In a first aspect, the present application provides a fresh air circulation system for energy-saving buildings, including a data collection module, a control module, a motor module and a heat exchange module;

[0007] The data collection module is used to collect user control instructions, indoor environment information data and outdoor environment information data. User control instructions include fresh air operation instructions;

[0008] The control module is connected to the data collection module to obtain and analyze the fresh air operation instructions to obtain the preset indoor environmental parameters; and generate wind pressure adjustment instructions and wind resistance adjustment instructions based on the preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data;

[0009] The motor module is connected to the control module and is used to provide the wind pressure required for air circulation according to the wind pressure adjustment instruction;

[0010] The heat exchange module is connected to the control module to realize heat exchange between the air flowing into the room and the air flowing out of the room; the heat exchange module includes a valve control component;

[0011] The valve control assembly is used to adjust the wind resistance of the heat exchange module by controlling the length of the path through which air flows in the heat exchange module according to the wind resistance adjustment instruction. The length of the path is used to measure the heat exchange ratio during the heat exchange process.

[0012] In one embodiment, the control module is further configured to:

[0013] Use the following formula to generate fresh air operation control information based on preset indoor environmental parameters, indoor environmental information data, and outdoor environmental information data:

[0014]

[0015] Where, L K is the fresh air operation control information, λ1 is the difference weight coefficient between the preset indoor environmental parameters and the indoor environmental information data, λ2 is the difference weight coefficient between the indoor environmental information data and the outdoor environmental information data, λ3 is the difference weight coefficient between the preset indoor environmental parameters and the outdoor environmental information data, is the preset indoor environment parameter vector, is the indoor environment information data vector, is the outdoor environment information data vector;

[0016] Use the following formula to determine the working mode conditions satisfied by the fresh air operation control information based on the working mode determination model:

[0017]

[0018] In the formula, Π K is the working mode condition satisfied by the fresh air operation control information, π min is the minimum operating mode condition, π1 to π n For the intermediate working mode condition, π max is the maximum operating mode condition, is the minimum threshold coefficient of difference, to is the difference middle threshold range coefficient, is the highest threshold coefficient of difference;

[0019] If the minimum working mode condition is met, the wind pressure is set to the minimum working mode wind pressure, and the wind resistance is set to the minimum working mode wind resistance;

[0020] If the maximum working mode condition is met, the wind pressure is set to the maximum working mode wind pressure, and the wind resistance is set to the maximum working mode wind resistance;

[0021] If the intermediate working mode condition is met, the wind pressure is set to the intermediate working mode wind pressure, and the wind resistance is set to the intermediate working mode wind resistance.

[0022] In one of the embodiments, the motor module is used to adjust the wind pressure by regulating the frequency of the input voltage of the motor in the motor module according to the wind pressure adjustment instruction;

[0023] The valve control component is used to adjust the air inlet and outlet of the air flowing into the room and the air inlet and outlet of the air flowing to the outside of the heat exchange module according to the wind resistance adjustment instruction, thereby changing the length of the air circulation path in the heat exchange module to achieve wind resistance adjustment.

[0024] In one of the embodiments, the fresh air circulation system for energy-saving buildings further includes: an air conditioning module;

[0025] The air conditioning module is used to connect to the control module and is used to adjust the environmental parameters in the working space of the system by changing the physical parameters of the airflow flowing through the air conditioning module according to the air conditioning instruction;

[0026] The control module is also used to input the preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data into the air conditioning start-stop model, determine whether the system meets the air conditioning working mode conditions, and the air conditioning working mode conditions are used to characterize the working mode with large differences between the preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data; and, if the system meets the air conditioning working mode conditions, generate an air conditioning instruction;

[0027] The expression of the air conditioning start-stop model is:

[0028]

[0029] In the formula, Π A is the air conditioning start-stop model, π Y Indicates that the system meets the air conditioning working mode conditions, π N Indicates that the system does not meet the air conditioning working mode conditions, L A is the air conditioning parameter, K A is the air conditioning working threshold, α1 is the air conditioning difference weight coefficient between the preset indoor environment parameters and the indoor environment information data, α2 is the air conditioning difference weight coefficient between the indoor environment information data and the outdoor environment information data, α3 is the air conditioning difference weight coefficient between the preset indoor environment parameters and the outdoor environment information data, is the preset indoor environment parameter vector, is the indoor environment information data vector, It is the outdoor environment information data vector.

[0030] In one embodiment, the user control instruction includes a formaldehyde removal operation instruction;

[0031] The data collection module is also used to collect user location information and send the user location information to the control module; the user location information is used to determine whether the user is in the operating space of the system;

[0032] The control module is also used to:

[0033] Obtain user location information, and parse the formaldehyde removal operation instruction to obtain the formaldehyde removal start time, formaldehyde removal end time, formaldehyde removal operation parameters, and formaldehyde removal end parameters;

[0034] After the start time of formaldehyde removal is met, if the outdoor environmental information data meets the minimum temperature condition for formaldehyde removal and the user location information meets the condition that there is no one in the formaldehyde removal area, the motor module, heat exchange module and air conditioning module are controlled to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal operation parameters, and the formaldehyde removal operation is carried out;

[0035] If after the formaldehyde removal operation begins, the user's location information does not meet the unmanned condition in the formaldehyde removal area or meets the end time of formaldehyde removal, the motor module, heat exchange module and air conditioning module are controlled to adjust the environmental parameters of the formaldehyde removal area to meet the end parameters of formaldehyde removal.

[0036] In one embodiment, the formaldehyde removal operation parameters include formaldehyde removal temperature and formaldehyde removal wind pressure, and the air conditioning module includes a humidity adjustment component;

[0037] The control motor module, heat exchange module and air conditioning module adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal operation parameters and perform formaldehyde removal operations, including:

[0038] Control the frequency of the input voltage of the motor in the motor module and adjust the wind pressure to the formaldehyde removal wind pressure;

[0039] If the temperature data in the outdoor environment information data is higher than the temperature data in the indoor environment information data, the heat exchange module is set to a direct mode, where the direct mode is used to indicate that air directly passes through the heat exchange module without heat exchange, so that the wind resistance of the heat exchange module is minimized;

[0040] The saturated humidity corresponding to the formaldehyde removal temperature is obtained based on the temperature-saturated humidity regression model, and the humidity regulating component is controlled to adjust the humidity of the formaldehyde removal area to exceed 70% of the saturated humidity.

[0041] In one embodiment, the formaldehyde removal end parameter includes the formaldehyde removal end wind pressure, and controlling the motor module, the heat exchange module and the air conditioning module to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal end parameter includes:

[0042] Control the frequency of the input voltage of the motor in the motor module, and adjust the wind pressure to the wind pressure at which the formaldehyde removal ends, wherein the wind pressure at which the formaldehyde removal ends is greater than the wind pressure at which the formaldehyde removal ends;

[0043] If the temperature data in the preset indoor environment parameters is closer to the temperature data in the outdoor environment information data than the temperature data in the indoor environment information data, the heat exchange module is set to a pass-through mode;

[0044] A preset humidity range in the preset indoor environmental parameters is obtained, and the humidity in the working space of the humidity regulating component regulating system is controlled to meet the preset humidity range.

[0045] In a second aspect, the present application also provides a fresh air circulation control method for energy-saving buildings, comprising:

[0046] Acquire and analyze the fresh air operation instructions collected by the data collection module to obtain the preset indoor environment parameters;

[0047] Wind pressure adjustment instructions and wind resistance adjustment instructions are generated based on preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data collected by the data collection module.

[0048] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0049] Acquire and analyze the fresh air operation instructions collected by the data collection module to obtain the preset indoor environment parameters;

[0050] Wind pressure adjustment instructions and wind resistance adjustment instructions are generated based on preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data collected by the data collection module.

[0051] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the following steps are implemented:

[0052] Acquire and analyze the fresh air operation instructions collected by the data collection module to obtain the preset indoor environment parameters;

[0053] Wind pressure adjustment instructions and wind resistance adjustment instructions are generated based on preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data collected by the data collection module.

[0054] The above-mentioned fresh air circulation system, control method, computer equipment and storage medium for energy-saving buildings adjust the air circulation path by controlling the valve control component based on the wind resistance adjustment instruction generated by the control module, thereby adjusting the heat exchange efficiency. It can flexibly control the heat exchange process according to actual needs and improve the power efficiency and performance of the fresh air circulation system.

[0055] Furthermore, through reasonable control of wind pressure and wind resistance, the wear on the motor module and the heat exchange module can be reduced, and the service life of the equipment of the fresh air circulation system can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0057] Figure 1 A schematic diagram of an implementation environment of a fresh air circulation system and a control method for energy-saving buildings provided in one embodiment of the present application;

[0058] Figure 2 A schematic structural diagram of a fresh air circulation system for energy-saving buildings provided in one embodiment of the present application;

[0059] Figure 3 A schematic diagram of a process for adjusting wind pressure and wind resistance provided in one embodiment of the present application;

[0060] Figure 4 A schematic structural diagram of another fresh air circulation system for energy-saving buildings provided in one embodiment of the present application;

[0061] Figure 5 A schematic diagram of another process for adjusting wind pressure and wind resistance provided in one embodiment of the present application;

[0062] Figure 6 A structural schematic diagram of another fresh air circulation system for energy-saving buildings provided in one embodiment of the present application;

[0063] Figure 7 A flow chart of a fresh air circulation control method for energy-saving buildings provided in one embodiment of the present application. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0065] The fresh air circulation system and control method for energy-saving buildings provided in the embodiments of the present application can be applied to Figure 1In the application environment shown. Among them, the sensing device 102 and the working device 103 can communicate with the computing control device 101 through a communication channel. The computing control device 101 can generate a control instruction for controlling the working state of the working device 103 based on the data information collected by the sensing device 102. Among them, the computing control platform 101 can be but not limited to an embedded control system, an intelligent terminal, a server, an edge computing platform and a cloud computing platform. The communication protocol adopted by the communication channel can be but not limited to RS485, TCP / IP, BACnet, serial communication interface standard, OPC, Web Service, SNMP, HTTP, Wi-Fi, Zigbee, Bluetooth, Z-Wave, cellular data and near field communication (NFC).

[0066] In an exemplary embodiment, Figure 2 As shown, a fresh air circulation system 200 for an energy-saving building is provided. The fresh air circulation system 200 for an energy-saving building includes: a data collection module 210, a control module 220, a motor module 230 and a heat exchange module 240.

[0067] Specifically, the data collection module 210 can be used to collect user control instructions, indoor environment information data and outdoor environment information data based on the sensor equipment. The user control instructions may include fresh air operation instructions.

[0068] Exemplarily, the user can control the motor module 230 and the heat exchange module 240 based on the control module 220 through user control instructions to adjust the fresh air volume, the proportion of air internal and external circulation, and the preset air quality index of the fresh air circulation system 200 for energy-saving buildings. The indoor environment information data and the outdoor environment information data may include, but are not limited to, air temperature information, air humidity information, air particulate matter information, volatile organic matter information, and environmental colony information. The indoor environment information data may also include, but are not limited to, the number of users, the concentration of carbon dioxide, the size of the operating area of ​​the fresh air circulation system 200 for energy-saving buildings, and the regional air distribution efficiency of the operating area of ​​the fresh air circulation system 200 for energy-saving buildings.

[0069] Specifically, the control module 220 can be connected to the data collection module 210 based on the communication channel, and obtain the fresh air operation instructions, user control instructions, indoor environment information data and outdoor environment information data collected by the data collection module 210 based on the communication channel. The control module 220 can be used to parse the fresh air operation instructions based on the computing control device to obtain the preset indoor environment parameters, and can generate the wind pressure adjustment instructions and the wind resistance adjustment instructions based on the preset indoor environment parameters, the indoor environment information data and the outdoor environment information data based on the computing control device.

[0070] Illustratively, the control module 220 can control the motor module 230 to adjust the wind pressure provided for the fresh air circulation system 200 for energy-saving buildings based on the wind pressure adjustment instruction. The control module 220 can control the valve control component 241 to adjust the wind resistance of the heat exchange module 240 in the fresh air circulation system 200 for energy-saving buildings based on the wind resistance adjustment instruction.

[0071] Specifically, the motor module 230 can be connected to the control module 220 via a communication channel, and the motor module 230 can be used to provide the wind pressure required for air circulation of the fresh air circulation system 200 for energy-saving buildings based on the working equipment according to the wind pressure adjustment instruction.

[0072] Exemplarily, a feasible expression for the wind pressure required for air circulation of the fresh air circulation system 200 of an energy-saving building is as follows:

[0073] P x =R x ×(N p ×D p +V f ×D f )×τ

[0074] Where P x R is the wind pressure required for air circulation in fresh air circulation systems of energy-saving buildings. x is the wind resistance of the fresh air circulation system used in energy-saving buildings, N p is the number of users in the workspace of the fresh air circulation system for energy-saving buildings, D p is the air flow required for each user, V f is the volume of the working space of the fresh air circulation system for energy-saving buildings, D f is the air circulation volume required per unit volume of the working space of the fresh air circulation system for energy-saving buildings, and τ is the regional air distribution efficiency of the working space of the fresh air circulation system for energy-saving buildings.

[0075] Specifically, the heat exchange module 240 can be connected to the control module 220 via the communication module, and the heat exchange module 240 can be used to achieve heat exchange between the air flowing into the room and the air flowing to the outside based on the working equipment according to the wind resistance adjustment instruction.

[0076] Furthermore, the heat exchange module 240 may include a valve control component 241 .

[0077] The valve control component 241 can be used to adjust the wind resistance of the heat exchange module 240 by controlling the length of the path through which the air circulates in the heat exchange module 240 according to the wind resistance adjustment instruction generated by the control module 220, thereby regulating the wind resistance of the fresh air circulation system 200 for energy-saving buildings. The length of the path through which the air circulates in the heat exchange module 240 can be used to characterize the heat exchange ratio of the heat exchange process of the air in the heat exchange module 240.

[0078] Schematically, a feasible expression for the wind resistance of the fresh air circulation system 200 for energy-saving buildings is as follows:

[0079] R x =R0+R C +R V

[0080] In the formula, R x is the wind resistance of the fresh air circulation system used in energy-saving buildings, R0 is the environmental basic wind resistance, R C is the fixed wind resistance of the fresh air circulation system for energy-saving buildings, R V The invention discloses a variable wind resistance of a fresh air circulation system for energy-saving buildings which is adjusted based on a valve control component.

[0081] In the above-mentioned fresh air circulation system for energy-saving buildings, the control module generates a wind pressure adjustment instruction based on the environmental parameters and operation instructions collected by the data collection module to control the wind pressure provided by the motor module, which can ensure the efficient use of energy in the air circulation process and reduce energy loss. The heat or cold of the air flowing out of the room can be recovered by the heat exchange module to preheat or precool the newly incoming air, thereby reducing the energy consumption of the heating and cooling system. The control module generates a wind resistance adjustment instruction to control the valve control component to adjust the length of the air circulation path, thereby adjusting the proportion of heat exchange, so that the system can flexibly adjust the operating state according to different seasons, weather conditions and indoor needs, and improve power efficiency.

[0082] In one of the optional embodiments, please refer to Figure 2 and Figure 3 The control module 220 is also used for:

[0083] Step S301, generating fresh air operation control information based on preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data.

[0084] Specifically, the control module 220 may use the following formula to generate fresh air operation control information based on preset indoor environmental parameters, indoor environmental information data, and outdoor environmental information data:

[0085]

[0086] Where, LK is the fresh air operation control information, λ1 is the difference weight coefficient between the preset indoor environmental parameters and the indoor environmental information data, λ2 is the difference weight coefficient between the indoor environmental information data and the outdoor environmental information data, λ3 is the difference weight coefficient between the preset indoor environmental parameters and the outdoor environmental information data, is the preset indoor environment parameter vector, is the indoor environment information data vector, It is the outdoor environment information data vector.

[0087] Schematically, since the difference between the indoor environment information data and the outdoor environment information data has the greatest impact on the demand for the heat exchange ratio of the heat exchange module 240 of the fresh air circulation system 200 for energy-saving buildings, among the difference weight coefficients between the preset indoor environment parameters and the indoor environment information data, the difference weight coefficients between the indoor environment information data and the outdoor environment information data, and the difference weight coefficients between the preset indoor environment parameters and the outdoor environment information data, the difference weight coefficient between the indoor environment information data and the outdoor environment information data can be set to the maximum.

[0088] Exemplarily, the preset indoor environment parameter vector Indoor environment information data vector and outdoor environment information data vector The feasible expressions are:

[0089]

[0090] Where Y P 、T I and T O is the temperature component, Φ P , Φ I and Φ O is the relative humidity component.

[0091] Step S302: determining the working mode conditions satisfied by the fresh air operation control information based on the working mode determination model.

[0092] Specifically, the control module 220 may determine the working mode condition satisfied by the fresh air operation control information based on the working mode determination model according to the following formula:

[0093]

[0094] In the formula, Π K is the working mode condition satisfied by the fresh air operation control information, π min is the minimum operating mode condition, π1 to π n For the intermediate working mode condition, π max is the maximum operating mode condition, is the minimum threshold coefficient of difference, to is the difference middle threshold range coefficient, is the highest difference threshold coefficient.

[0095] Step S303: if the minimum working mode condition is met, the wind pressure is set to the minimum working mode wind pressure, and the wind resistance is set to the minimum working mode wind resistance.

[0096] Specifically, if the fresh air operation control information meets the minimum working mode conditions, the control module 220 can generate a minimum working mode voltage adjustment instruction, obtain and control the wind pressure required for the air circulation of the fresh air circulation system 200 for the energy-saving building based on the wind resistance of the fresh air circulation system for the energy-saving building under the minimum working mode, the air circulation volume required for the number of single users under the minimum working mode, and the air circulation volume required for the unit volume of the working space of the fresh air circulation system 200 for the energy-saving building under the minimum working mode.

[0097] Furthermore, if the fresh air operation control information meets the minimum working mode conditions, the control module 220 can generate a minimum working mode wind resistance adjustment instruction to set the wind resistance of the fresh air circulation system for energy-saving buildings in the minimum working mode to the minimum working mode wind resistance based on the valve control component 241.

[0098] Step S304: if the maximum working mode condition is met, the wind pressure is set to the maximum working mode wind pressure, and the wind resistance is set to the maximum working mode wind resistance.

[0099] Specifically, if the fresh air operation control information meets the maximum working mode conditions, the control module 220 can generate a maximum working mode voltage adjustment instruction, obtain and control the wind pressure required for the air circulation of the fresh air circulation system 200 for the energy-saving building based on the wind resistance of the fresh air circulation system for the energy-saving building under the maximum working mode, the air circulation volume required for the number of single users under the maximum working mode, and the air circulation volume required for the unit volume of the working space of the fresh air circulation system 200 for the energy-saving building under the maximum working mode.

[0100] Furthermore, if the fresh air operation control information meets the maximum working mode conditions, the control module 220 can generate a maximum working mode wind resistance adjustment instruction to set the wind resistance of the fresh air circulation system for energy-saving buildings in the maximum working mode to the maximum working mode wind resistance based on the valve control component 241.

[0101] Step S305, if the intermediate working mode condition is met, the wind pressure is set to the intermediate working mode wind pressure, and the wind resistance is set to the intermediate working mode wind resistance.

[0102] Specifically, if the fresh air operation control information meets the intermediate working mode conditions, the control module 220 can generate an intermediate working mode voltage adjustment instruction, obtain and control the wind pressure required for the air circulation of the fresh air circulation system 200 for the energy-saving building based on the wind resistance of the fresh air circulation system for the energy-saving building in the intermediate working mode, the air circulation volume required for the number of single users in the intermediate working mode, and the air circulation volume required for the unit volume of the working space of the fresh air circulation system 200 for the energy-saving building in the intermediate working mode.

[0103] Furthermore, if the fresh air operation control information meets the intermediate working mode conditions, the control module 220 can generate an intermediate working mode wind resistance adjustment instruction to set the wind resistance of the fresh air circulation system for energy-saving buildings in the intermediate working mode to the intermediate working mode wind resistance based on the valve control component 241.

[0104] In the above-mentioned fresh air circulation system for energy-saving buildings, the control module accurately generates fresh air operation control information and determines the working mode conditions according to the relevant formulas, so as to achieve a high degree of fit between the system operation parameters and the actual environmental requirements. For example, in the spring and autumn transition season, the wind pressure and wind resistance are accurately adjusted according to the differences in indoor and outdoor temperature, humidity, and air quality, so that the fresh air system can operate efficiently. It can intelligently generate fresh air operation control information based on the preset indoor environmental parameters and the actual indoor and outdoor environmental data to achieve precise control. By adjusting the wind pressure and wind resistance to adapt to different indoor and outdoor environmental conditions, energy consumption can be optimized and unnecessary energy waste can be reduced.

[0105] In one embodiment, the motor module can be used to adjust the wind pressure by regulating the frequency of the input voltage of the motor in the motor module according to the wind pressure adjustment instruction.

[0106] Indicatively, the feasible approximate expressions of the frequency of the motor input voltage and the motor output wind pressure within a certain range are as follows:

[0107]

[0108] Where P out is the output wind pressure of the motor, C is the comprehensive approximate coefficient, f in is the frequency of the input voltage to the motor.

[0109] The valve control component can be used to regulate the air inlet and outlet of the air flowing into the room and the air inlet and outlet of the air flowing to the outside of the heat exchange module according to the wind resistance adjustment instructions generated by the control module, thereby changing the length of the air circulation path in the heat exchange module and realizing the adjustment of the wind resistance of the fresh air circulation system used in energy-saving buildings.

[0110] In the above-mentioned fresh air circulation system for energy-saving buildings, the wind pressure is controlled by adjusting the input voltage frequency of the motor, so that the wind pressure in the fresh air system can be accurately adjusted to adapt to different indoor and outdoor environmental conditions and system requirements, reduce energy waste, and reduce operating costs. The valve control component flexibly switches the flow channel according to instructions, accurately controls wind resistance and improves heat exchange efficiency. When the temperature difference is small, the flow channel is shortened to reduce wind resistance, save energy and maintain an appropriate amount of fresh air; when the temperature difference is large, the flow channel is extended to increase heat exchange and reduce energy consumption. It can improve the overall operating efficiency of energy-saving buildings, optimize the efficiency of heat exchange modules, and improve energy recovery rates.

[0111] In one embodiment, please refer to Figure 4 The fresh air circulation system 400 for energy-saving buildings includes: a data collection module 410, a control module 420, a motor module 430, a heat exchange module 440 and an air conditioning module 450. The heat exchange module 440 includes a valve control component 441.

[0112] Specifically, the air conditioning module 450 can be connected to the control module 420 based on a communication channel. The air conditioning module 450 can be used to adjust the environmental parameters in the working space of the fresh air circulation system 400 for energy-saving buildings by changing the physical parameters of the airflow flowing through the air conditioning module 450 according to the air conditioning instructions generated by the control module 420.

[0113] Specifically, the control module 420 can also be used to input the preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data obtained by the data collection module 410 into the air conditioning start-stop model to determine whether the fresh air circulation system 400 for energy-saving buildings meets the air conditioning working mode conditions. The air conditioning working mode conditions can be used to characterize the working mode corresponding to the difference between the preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data.

[0114] Furthermore, if the control module 420 determines that the fresh air circulation system 400 for the energy-saving building meets the air conditioning working mode conditions, the control module 420 can be used to generate an air conditioning instruction.

[0115] Exemplarily, a feasible expression of the air conditioning start-stop model is:

[0116]

[0117] In the formula, Π A is the air conditioning start-stop model, π Y Indicates that the system meets the air conditioning working mode conditions, π N Indicates that the system does not meet the air conditioning working mode conditions, L A is the air conditioning parameter, K Ais the air conditioning working threshold, α1 is the air conditioning difference weight coefficient between the preset indoor environment parameters and the indoor environment information data, α2 is the air conditioning difference weight coefficient between the indoor environment information data and the outdoor environment information data, α3 is the air conditioning difference weight coefficient between the preset indoor environment parameters and the outdoor environment information data, is the preset indoor environment parameter vector, is the indoor environment information data vector, It is the outdoor environment information data vector.

[0118] Illustratively, since the difference between the preset indoor environmental parameters and the indoor environmental information data has the greatest impact on the air conditioning demand of the air conditioning module 450 of the fresh air circulation system 200 for energy-saving buildings, among the air conditioning difference weight coefficient between the preset indoor environmental parameters and the indoor environmental information data, the air conditioning difference weight coefficient between the indoor environmental information data and the outdoor environmental information data, and the air conditioning difference weight coefficient between the preset indoor environmental parameters and the outdoor environmental information data, the air conditioning difference weight coefficient between the preset indoor environmental parameters and the indoor environmental information data can be set to the maximum.

[0119] In the above-mentioned fresh air circulation system for energy-saving buildings, the air conditioning module can change the physical parameters of the air flow flowing through the air conditioning module according to the air conditioning instructions, thereby realizing automatic adjustment of the environmental parameters in the system working space, thereby improving the accuracy and power efficiency of the system.

[0120] In one embodiment, the user control instructions may include formaldehyde removal operation instructions.

[0121] The data collection module can also be used to collect user location information and send the user location information to the control module. The user location information is used to determine whether the user is in the operating space of the system.

[0122] like Figure 5 As shown, the control module can also be used to:

[0123] Step S510, obtaining user location information, and parsing the formaldehyde removal operation instruction to obtain the formaldehyde removal start time, formaldehyde removal end time, formaldehyde removal operation parameters and formaldehyde removal end parameters.

[0124] Step S520, after the formaldehyde removal start time is met, if the outdoor environmental information data meets the minimum temperature condition for formaldehyde removal and the user location information meets the condition that there is no one in the formaldehyde removal area, control the motor module, heat exchange module and air conditioning module to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal operation parameters, and perform the formaldehyde removal operation.

[0125] Step S530, if the user location information does not meet the unmanned condition in the formaldehyde removal area or meets the end time of formaldehyde removal after the formaldehyde removal operation begins, the motor module, heat exchange module and air conditioning module are controlled to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal end parameters.

[0126] In the above-mentioned fresh air circulation system for energy-saving buildings, the user location information can be collected through the data collection module, and it can be determined whether the user is in the system's operating space, so as to avoid performing formaldehyde removal operations in the presence of people and ensure personnel safety. The control module can accurately control the motor module, heat exchange module and air conditioning module according to the outdoor environmental information data and user location information, adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal operation parameters, and achieve effective formaldehyde removal operations. Through effective formaldehyde removal operations, it can help reduce the concentration of harmful substances such as formaldehyde in the room and improve indoor air quality.

[0127] In one embodiment, the formaldehyde removal operation parameters include formaldehyde removal temperature and formaldehyde removal wind pressure, such as Figure 6 As shown, the air conditioning module 650 includes a humidity conditioning component 651;

[0128] Please refer to Figure 5 , control the motor module, heat exchange module and air conditioning module to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal operation parameters, and perform formaldehyde removal operations, including:

[0129] Step S521, controlling the frequency of the input voltage of the motor in the motor module, and adjusting the wind pressure to the formaldehyde removal wind pressure.

[0130] Step S522: If the temperature data in the outdoor environment information data is higher than the temperature data in the indoor environment information data, the heat exchange module is set to a pass-through mode.

[0131] Specifically, if the temperature data in the outdoor environment information data is higher than the temperature data in the indoor environment information data, the control module 620 can set the heat exchange module 640 to the direct mode by controlling the valve control component 641. The direct mode is used to indicate that the air directly passes through the heat exchange module 640 without heat exchange, so that the wind resistance of the heat exchange module 640 is minimized.

[0132] Step S523, obtaining the saturated humidity corresponding to the formaldehyde removal temperature based on the temperature-saturated humidity regression model, and controlling the humidity regulating component to adjust the humidity of the formaldehyde removal area to exceed 70% of the saturated humidity.

[0133] Illustratively, a temperature-saturated humidity regression model may be constructed based on historical temperature-saturated humidity experimental data, and the temperature-saturated humidity regression model may be mounted on the control module 620 .

[0134] In the above-mentioned fresh air circulation system for energy-saving buildings, the environmental parameters of the formaldehyde removal area can be precisely adjusted by controlling the motor module, the heat exchange module and the air conditioning module to improve the formaldehyde removal efficiency and effect. By setting the heat exchange module to the direct-through mode, unnecessary heat exchange can be avoided and the energy efficiency of the system can be improved.

[0135] In one embodiment, please refer to Figure 5 The end parameters of formaldehyde removal include the end wind pressure of formaldehyde removal. The motor module, heat exchange module and air conditioning module are controlled to adjust the environmental parameters of the formaldehyde removal area to meet the end parameters of formaldehyde removal, including:

[0136] Step S531, controlling the frequency of the input voltage of the motor in the motor module, and adjusting the wind pressure to the wind pressure at which formaldehyde removal ends.

[0137] Step S532: if the temperature data in the preset indoor environment parameter is closer to the temperature data in the outdoor environment information data than the temperature data in the indoor environment information data, the heat exchange module is set to a pass-through mode.

[0138] Step S533, obtaining a preset humidity range in the preset indoor environmental parameters, and controlling the humidity regulating component to regulate the humidity in the working space of the system to meet the preset humidity range.

[0139] The above-mentioned fresh air circulation system for energy-saving buildings can achieve a smooth transition from the formaldehyde removal operation state to the normal indoor environment state, avoiding the impact on human health caused by sudden changes in environmental parameters.

[0140] In one embodiment, please refer to Figure 6 The fresh air circulation system 600 for energy-saving buildings may include: a data collection module 610, a control module 620, a motor module 630, a heat exchange module 640 and an air conditioning module 650. The heat exchange module 640 may include a valve control component 641, and the air conditioning module 650 may include 651.

[0141] In the above-mentioned fresh air circulation system for energy-saving buildings, various key information is collected through the data collection module to provide a data basis for the precise control of the entire system. The control module coordinates the operation of the motor module, heat exchange module and air conditioning module, so that the fresh air circulation system can maintain the optimal state, improve the overall efficiency of the system, and achieve significant energy-saving effects.

[0142] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0143] Based on the same inventive concept, the embodiment of the present application also provides a method for controlling fresh air circulation for energy-saving buildings for realizing the fresh air circulation system for energy-saving buildings mentioned above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the method for controlling fresh air circulation for energy-saving buildings provided below can refer to the limitations of the fresh air circulation system for energy-saving buildings above, and will not be repeated here.

[0144] In an exemplary embodiment, Figure 7 As shown, a fresh air circulation control method for energy-saving buildings is provided, comprising:

[0145] Acquire and analyze the fresh air operation instructions collected by the data collection module to obtain the preset indoor environment parameters;

[0146] Wind pressure adjustment instructions and wind resistance adjustment instructions are generated based on preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data collected by the data collection module.

[0147] In an optional embodiment, a fresh air circulation control method for an energy-saving building further includes:

[0148] Use the following formula to generate fresh air operation control information based on preset indoor environmental parameters, indoor environmental information data, and outdoor environmental information data:

[0149]

[0150] Where, L K is the fresh air operation control information, λ1 is the difference weight coefficient between the preset indoor environmental parameters and the indoor environmental information data, λ2 is the difference weight coefficient between the indoor environmental information data and the outdoor environmental information data, λ3 is the difference weight coefficient between the preset indoor environmental parameters and the outdoor environmental information data, is the preset indoor environment parameter vector, is the indoor environment information data vector, is the outdoor environment information data vector;

[0151] Use the following formula to determine the working mode conditions satisfied by the fresh air operation control information based on the working mode determination model:

[0152]

[0153] In the formula, ∏ K is the working mode condition satisfied by the fresh air operation control information, π min is the minimum operating mode condition, π1 to π n For the intermediate working mode condition, π max is the maximum operating mode condition, is the difference minimum threshold coefficient, to is the difference middle threshold range coefficient, is the highest threshold coefficient of difference;

[0154] If the minimum working mode condition is met, the wind pressure is set to the minimum working mode wind pressure, and the wind resistance is set to the minimum working mode wind resistance;

[0155] If the maximum working mode condition is met, the wind pressure is set to the maximum working mode wind pressure, and the wind resistance is set to the maximum working mode wind resistance;

[0156] If the intermediate working mode condition is met, the wind pressure is set to the intermediate working mode wind pressure, and the wind resistance is set to the intermediate working mode wind resistance.

[0157] In an optional embodiment, a fresh air circulation control method for an energy-saving building further includes:

[0158] The preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data are input into the air conditioning start and stop model to determine whether the system meets the air conditioning working mode conditions. The air conditioning working mode conditions are used to characterize the working mode with large differences between the preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data; and, if the system meets the air conditioning working mode conditions, an air conditioning instruction is generated.

[0159] In an optional embodiment, a fresh air circulation control method for an energy-saving building further includes:

[0160] Obtain user location information, and parse the formaldehyde removal operation instruction to obtain the formaldehyde removal start time, formaldehyde removal end time, formaldehyde removal operation parameters, and formaldehyde removal end parameters;

[0161] After the start time of formaldehyde removal is met, if the outdoor environmental information data meets the minimum temperature condition for formaldehyde removal and the user location information meets the condition that there is no one in the formaldehyde removal area, the motor module, heat exchange module and air conditioning module are controlled to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal operation parameters, and the formaldehyde removal operation is carried out;

[0162] If after the formaldehyde removal operation begins, the user's location information does not meet the unmanned condition in the formaldehyde removal area or meets the end time of formaldehyde removal, the motor module, heat exchange module and air conditioning module are controlled to adjust the environmental parameters of the formaldehyde removal area to meet the end parameters of formaldehyde removal.

[0163] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of a power supply safety management method as described above when executing the computer program.

[0164] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0165] The above-mentioned embodiments only express several implementation methods of the embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the embodiments of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the embodiments of the present application, and these all belong to the protection scope of the embodiments of the present application.

Claims

1. A fresh air circulation system for energy-saving buildings, characterized in that: The system comprises: a data collection module, a control module, a motor module and a heat exchange module; The data collection module is used to collect user control instructions, indoor environment information data and outdoor environment information data, and the user control instructions include fresh air operation instructions; The control module is connected to the data collection module, and is used to obtain and analyze the fresh air operation instruction to obtain the preset indoor environmental parameters; and generate the wind pressure adjustment instruction and the wind resistance adjustment instruction based on the preset indoor environmental parameters, the indoor environmental information data and the outdoor environmental information data; The motor module is connected to the control module and is used to provide the wind pressure required for air circulation according to the wind pressure adjustment instruction; The heat exchange module is connected to the control module and is used to achieve heat exchange between the air flowing into the room and the air flowing out of the room; the heat exchange module includes a valve control component; The valve control component is used to adjust the wind resistance of the heat exchange module by controlling the length of the path through which air flows in the heat exchange module according to the wind resistance adjustment instruction. The length of the path is used to measure the heat exchange ratio during the heat exchange process.

2. The system according to claim 1, characterized in that The control module is also used for: The following formula is used to generate fresh air operation control information based on the preset indoor environment parameters, the indoor environment information data and the outdoor environment information data: Where, L K is the fresh air operation control information, λ1 is the difference weight coefficient between the preset indoor environment parameter and the indoor environment information data, λ2 is the difference weight coefficient between the indoor environment information data and the outdoor environment information data, λ3 is the difference weight coefficient between the preset indoor environment parameter and the outdoor environment information data, is the preset indoor environment parameter vector, Indoor environment information data vector is the outdoor environment information data vector; The following formula is used to determine the working mode conditions satisfied by the fresh air operation control information based on the working mode determination model: In the formula, Π K is the working mode condition satisfied by the fresh air operation control information, π min is the minimum operating mode condition, π1 to π n For the intermediate working mode condition, π max is the maximum operating mode condition, is the minimum threshold coefficient of difference, to is the difference middle threshold range coefficient, is the highest threshold coefficient of difference; If the minimum working mode condition is met, the wind pressure is set to the minimum working mode wind pressure, and the wind resistance is set to the minimum working mode wind resistance; If the maximum working mode condition is met, the wind pressure is set to the maximum working mode wind pressure, and the wind resistance is set to the maximum working mode wind resistance; If the intermediate working mode condition is met, the wind pressure is set to the intermediate working mode wind pressure, and the wind resistance is set to the intermediate working mode wind resistance.

3. The system according to claim 2, characterized in that The motor module is used to adjust the wind pressure by regulating the frequency of the input voltage of the motor in the motor module according to the wind pressure adjustment instruction; The valve control component is used to regulate the air inlet and outlet of the air flowing into the room and the air inlet and outlet of the air flowing to the outside of the heat exchange module according to the wind resistance adjustment instruction, thereby changing the length of the air circulation path in the heat exchange module to achieve the adjustment of the wind resistance.

4. The system according to any one of claims 1 to 3, characterized in that: The system further comprises: an air conditioning module; The air conditioning module is used to connect to the control module and is used to adjust the environmental parameters in the working space of the system by changing the physical parameters of the airflow flowing through the air conditioning module according to the air conditioning instruction; The control module is also used to input the preset indoor environmental parameters, the indoor environmental information data and the outdoor environmental information data into the air conditioning start-stop model, determine whether the system meets the air conditioning working mode condition, and the air conditioning working mode condition is used to characterize the working mode in which the preset indoor environmental parameters, the indoor environmental information data and the outdoor environmental information data have a large difference; and if the system meets the air conditioning working mode condition, generate the air conditioning instruction; The expression of the air conditioning start-stop model is: In the formula, Π A is the air conditioning start-stop model, π Y Indicates that the system meets the air conditioning working mode conditions, π N Indicates that the system does not meet the air conditioning working mode conditions, L A is the air conditioning parameter, K A is the air conditioning working threshold, α1 is the air conditioning difference weight coefficient between the preset indoor environment parameter and the indoor environment information data, α2 is the air conditioning difference weight coefficient between the indoor environment information data and the outdoor environment information data, α3 is the air conditioning difference weight coefficient between the preset indoor environment parameter and the outdoor environment information data, is the preset indoor environment parameter vector, is the indoor environment information data vector, It is the outdoor environment information data vector.

5. The system according to claim 4, characterized in that The user control instructions include formaldehyde removal operation instructions; The data collection module is also used to collect user location information and send the user location information to the control module; the user location information is used to determine whether the user is in the working space of the system; The control module is also used for: Acquire the user location information, and parse the formaldehyde removal operation instruction to obtain the formaldehyde removal start time, formaldehyde removal end time, formaldehyde removal operation parameters, and formaldehyde removal end parameters; After the formaldehyde removal start time is met, if the outdoor environmental information data meets the minimum temperature condition for formaldehyde removal and the user location information meets the condition that there is no one in the formaldehyde removal area, the motor module, the heat exchange module and the air conditioning module are controlled to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal operation parameters, and perform the formaldehyde removal operation; If after starting the formaldehyde removal operation, the user location information does not meet the unmanned condition of the formaldehyde removal area or meets the formaldehyde removal end time, the motor module, the heat exchange module and the air conditioning module are controlled to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal end parameters.

6. The system according to claim 5, characterized in that The formaldehyde removal operation parameters include formaldehyde removal temperature and formaldehyde removal wind pressure, and the air conditioning module includes a humidity adjustment component; The controlling the motor module, the heat exchange module and the air conditioning module to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal operation parameters to perform the formaldehyde removal operation includes: Controlling the frequency of the input voltage of the motor in the motor module, and adjusting the wind pressure to the formaldehyde removal wind pressure; If the temperature data in the outdoor environment information data is higher than the temperature data in the indoor environment information data, the heat exchange module is set to a direct-through mode, wherein the direct-through mode is used to indicate that air directly passes through the heat exchange module without heat exchange so that the wind resistance of the heat exchange module is minimized; The saturated humidity corresponding to the formaldehyde removal temperature is obtained based on a temperature-saturated humidity regression model, and the humidity regulating component is controlled to regulate the humidity of the formaldehyde removal area to exceed 70% of the saturated humidity.

7. The system according to claim 6, characterized in that The formaldehyde removal end parameter includes the formaldehyde removal end wind pressure, and the controlling of the motor module, the heat exchange module, and the air conditioning module to adjust the environmental parameters of the formaldehyde removal area to meet the formaldehyde removal end parameter includes: Controlling the frequency of the input voltage of the motor in the motor module, and adjusting the wind pressure to the wind pressure at which formaldehyde removal ends, wherein the wind pressure at which formaldehyde removal ends is greater than the wind pressure at which formaldehyde removal ends; If the temperature data in the preset indoor environment parameter is closer to the temperature data in the outdoor environment information data than the temperature data in the indoor environment information data, setting the heat exchange module to a pass-through mode; A preset humidity range in the preset indoor environmental parameters is obtained, and the humidity adjustment component is controlled to adjust the humidity in the working space of the system to meet the preset humidity range.

8. A fresh air circulation control method for energy-saving buildings, characterized in that: The fresh air circulation system applied to any one of claims 1 to 7, the method comprising: Acquire and analyze the fresh air operation instructions collected by the data collection module to obtain the preset indoor environment parameters; A wind pressure adjustment instruction and a wind resistance adjustment instruction are generated based on the preset indoor environmental parameters, indoor environmental information data and outdoor environmental information data collected by the data collection module.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to claim 8 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to claim 8 are implemented.

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