CN116500955B - Zero-carbon type storage building internal environment control system and method - Google Patents
Zero-carbon type storage building internal environment control system and method Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 claims abstract description 55
- 230000007613 environmental effect Effects 0.000 claims abstract description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000001301 oxygen Substances 0.000 claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 23
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 116
- 238000009423 ventilation Methods 0.000 claims description 66
- 229910052757 nitrogen Inorganic materials 0.000 claims description 58
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
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Abstract
The invention provides a zero-carbon type storage building internal environment control system and method, and relates to the technical field of storage. The system comprises: the intelligent grain condition monitoring system comprises an external environment monitoring module, a digital grain condition detection module, a gas detection module, an intelligent control system, a gateway, a central controller, a cloud platform and terminal equipment; the method comprises the steps that environmental data are collected through an external environmental monitoring module, a digital grain condition detection module and a gas detection module, and the environmental data are sent to a cloud platform through a gateway; the intelligent control system is connected with the gateway and used for realizing intelligent control on the operation equipment by acquiring the processing result of the cloud platform; the central controller is connected to the intelligent control system cloud platform through the gateway, the terminal equipment checks various monitoring data through accessing the cloud platform, and through the system and the method, indexes such as temperature, humidity, oxygen content and the like of the external environment are monitored in real time, the internal environment of the warehouse is kept stable, and the indoor environment of the building is realized to reach 5S.
Description
Technical Field
The invention relates to the technical field of storage, in particular to a zero-carbon storage building internal environment control system and method.
Background
At present, civil buildings in most areas in northern China are newly built or modified, and in southern areas, ultra-low energy consumption (zero carbon) buildings are gradually developed; the thermal engineering of the building is restrained by the storage type building such as granary and the like under the national standard of ultralow energy consumption (energy saving), so that the technology of the granary building in China is old at present, and the running energy consumption cannot be effectively controlled. The existing domestic granary building has the advantages that the thermal engineering of the building is relatively backward to an indoor temperature control system, the running energy consumption is high, no measures are taken in design and construction to improve the internal grain storage environment, the grain quality is gradually reduced in the storage process, and the storage accident is seriously caused; the regions of China are wide, the China and the soil span a plurality of climate zones, the environmental difference between different climate zones is not balanced by directly upgrading the existing building outer enclosure structure, for example, the humidity problem in the north and south areas is solved, and meanwhile, the temperature and the humidity are also main control indexes of grain storage; at present, a domestic common storage environment control system is established on the basis of consuming a large amount of energy, and the grain storage effect is not ideal.
The zero-carbon 5S granary system uses a precise thermodynamic energy-saving mathematical model and combines information intelligent management means such as artificial intelligence, cloud computing and the Internet of things technology to keep granary buildings in constant temperature, constant humidity, constant oxygen, constant cleanness and constant intelligence environment states all the day long for 24 hours and 365 days by using a continuous heat preservation layer, a continuous airtight, no-heat bridge design, a passive door and window, a fresh air system with heat recovery, a humidity control and other ultra-low energy consumption building technology and concepts, and then a roof photovoltaic system is used for assistance, so that the carbon neutralization of the granary buildings can be realized. Quality maintenance of grain and zero-carbon operation of grain bins are core goals of zero-carbon 5S grain bin systems. Constant temperature, constant humidity, constant oxygen, constant cleanness, constant intelligence and zero carbon are the core concepts of the 'zero carbon 5S granary'.
Disclosure of Invention
The invention provides a system and a method for controlling the internal environment of a zero-carbon storage type building, which promote the wide application of a zero-carbon 5S quasi-low-temperature granary building in China and solve the problems of constant temperature and constant humidity of the internal environment of the grain storage type building in summer, winter and cold areas; the system uses a building thermodynamic mathematical model and combines artificial intelligence, cloud computing and the technology of the Internet of things, and a full-intelligent cloud control system is used for accurate linkage, so that the operation is more intelligent and energy-saving. The technology has three main characteristics of stable storage, energy conservation, environmental protection and low operation cost.
The invention provides a zero-carbon storage type building internal environment control system, which comprises:
the intelligent grain condition monitoring system comprises an external environment monitoring module, a digital grain condition detecting module, an intelligent control system, a gateway, a central controller, a cloud platform and terminal equipment;
the external environment monitoring module, the digital grain condition detecting module and the intelligent control system are respectively connected with the cloud platform and the central controller through the gateway, and the terminal equipment is connected with the cloud platform.
Furthermore, the zero-carbon storage type building internal environment control system is characterized in that the external environment monitoring system is used for acquiring weather Data and a database are established, and a change trend chart of the environmental conditions of the reservoir area is generated; the meteorological data comprises external environment temperature T, humidity S and wind speed v f Air pressure P, rainfall and time data;
and early warning is carried out when the temperature and humidity of the grain pile in the bin or are close to the control threshold value, and warning is carried out when the temperature and humidity of the grain pile in the bin or are over the control threshold value.
Further, a zero-carbon type storage building internal environment control system, the digital grain condition detection module is used for detecting the bin temperature T c Wet and temperature t in grain stack j And the functions of intelligent analysis, real-time information feedback, display and forecast and early warning of grain condition data are realized through the central controller and the cloud platform.
Furthermore, the zero-carbon type storage building internal environment control system is used for realizing intelligent control on operation equipment; the operation equipment comprises intelligent ventilation and air conditioning equipment;
the intelligent control system controls the operation of the regulating equipment according to the environmental information by acquiring the environmental information;
specifically, the indoor and outdoor environments are periodically and circularly detected, the preset detection time interval is u, environmental information is obtained through a sensor, wherein the outside environment temperature of the bin is made to be T, the outside environment humidity of the bin is made to be S, and the temperature of a grain stack in the bin is made to be T j The temperature threshold value is M, preferably 18 ℃, and the threshold value of the difference value between the grain pile temperature and the external environment temperature is M1; the humidity threshold outside the bin is P;
if t j <M, closing an air valve of the air conditioner;
if t j Not less than M and t j -T>M1&S<P, opening external circulation ventilation; calculating t j Rate of change of value a over time; calculating the ventilation on time j1, j 1= (t) j -M-k*V s V)/a, and recording the temperature value t of the grain pile after the external circulation ventilation is closed j1 The method comprises the steps of carrying out a first treatment on the surface of the The time interval of the preset inspection is u, and the temperature t of the grain pile at the beginning of the next inspection is recorded j2 The next check time interval u1=u×| (M-t) j1 )/(t j2 -t j1 ) I (I); wherein k is the temperature systemThe numerical value is between 0.2 and 0.8, is dimensionless and is V s The volume of the standard grain pile is V, and the volume of the grain pile is measured;
if t j M, but t j If T is less than or equal to M1 or S is more than or equal to P, starting the internal refrigeration cycle, alternately performing refrigeration and ventilation, and calculating T when the alternating time is Ti2 j The change rate a1 of the value with the opening time is calculated t j The rate of change of the value with the opening ventilation a2, the total opening time j2, j2=2 (t j -M-k*V s V)/(a1+a2), ti2=j2/4; and recording the temperature t of the grain pile after internal circulation closing j3 The method comprises the steps of carrying out a first treatment on the surface of the The time interval of the preset inspection is u, and the temperature t of the grain pile at the beginning of the next inspection is recorded j4 The next check time interval u2=u×| (M-t) j3 )/(t j4 -t j3 )|。
Furthermore, the system also comprises a gas monitoring module and a nitrogen charging adjustment module;
the gas monitoring module monitors the gas concentration in the bin by using a gas concentration sensor and uploads the measurement result to the cloud platform, wherein the gas concentration comprises the carbon dioxide concentration and the oxygen concentration in the bin;
the intelligent control system realizes automatic control on the nitrogen operation process according to the measurement result;
when the oxygen content in the monitoring bin is close to the threshold value, sending out early warning, determining the start time and the end time of nitrogen charging according to the result of the temperature and humidity sensor, and when the oxygen content in the monitoring bin is close to the threshold value, and t j <And (3) starting nitrogen charging during M, wherein the bin temperature is monitored simultaneously during the nitrogen charging, and the nitrogen charging time is as follows:
wherein v is c Representing the volume in the bin, wherein the unit is cubic meters; oi represents the initial oxygen concentration; of represents the target oxygen concentration, F represents the nitrogen filling rate, ln represents the natural logarithm, and the chamber temperature T at the beginning Of nitrogen filling c Nitrogen fillingIn-process cabin temperature T c1 The method comprises the steps of carrying out a first treatment on the surface of the And after the nitrogen filling is finished, automatically controlling the temperature of the grain pile, comparing the temperature of the grain pile with a grain pile temperature threshold value, and determining whether to start a ventilation circulation system according to a comparison result.
Further, the central controller is used for collecting data from all subsystems and sending the data to the cloud platform through the gateway for data analysis and processing; the central controller is connected to the intelligent control system, the energy consumption system and the cloud platform through the gateway and coordinates data exchange and control instruction transmission between the intelligent control system, the energy consumption system and the cloud platform; and early warning and alarming are carried out on the abnormal data.
Further, the cloud platform is used for classifying, analyzing and processing the data of each module and feeding back the result to the central controller through the gateway; and meanwhile, connecting terminal equipment, and displaying the result in the terminal equipment.
The invention provides a storage type building internal environment control method of a zero-carbon storage type building internal environment control system, which comprises the following steps:
s1, acquiring environment data through an external environment monitoring module, a digital grain condition detection module and a gas detection module, wherein the environment data comprises external environment data and internal environment data;
s2, the environment data are sent to a cloud platform through a gateway;
S3, processing the acquired data through the cloud platform, wherein the intelligent control system is connected with the gateway, and intelligent control on the operation equipment is realized by acquiring a processing result of the cloud platform;
s4, the central controller is connected to the intelligent control system cloud platform through a gateway, coordinates data exchange and control instruction transmission between the intelligent control system cloud platform and the central controller, and performs early warning and alarming on abnormal data;
s5, the terminal equipment checks various monitoring data through accessing the cloud platform.
Further, a method for controlling the internal environment of a zero-carbon storage building comprises the following steps: the intelligent control system controls and regulates the intelligent equipment to operate according to the environmental information by acquiring the environmental information;
specifically, the indoor and outdoor environments are periodically and circularly detected, the preset detection time interval is u, environmental information is obtained through a sensor, wherein the outside environment temperature of the bin is made to be T, the outside environment humidity of the bin is made to be S, and the temperature of a grain stack in the bin is made to be T j The temperature threshold value is M, preferably 18 ℃, and the threshold value of the difference value between the grain pile temperature and the external environment temperature is M1; the humidity threshold outside the bin is P;
if t j <M, closing an air valve of the air conditioner;
if t j Not less than M and t j -T>M1&S<P, opening external circulation ventilation; calculating t j Rate of change of value a over time; calculating the ventilation on time j1, j 1= (t) j -M-k*V s V)/a, and recording the temperature value t of the grain pile after the external circulation ventilation is closed j1 The method comprises the steps of carrying out a first treatment on the surface of the The time interval of the preset inspection is u, and the temperature t of the grain pile at the beginning of the next inspection is recorded j2 The next check time interval u1=u×| (M-t) j1 )/(t j2 -t j1 ) I (I); wherein k is a temperature coefficient, the value is between 0.2 and 0.8, and V is dimensionless s The volume of the standard grain pile is V, and the volume of the grain pile is measured;
if t j M, but t j And if T is less than or equal to M1 or S is more than or equal to P, starting the internal refrigeration cycle, and alternately performing refrigeration and ventilation, wherein the alternation time is Ti2. Calculating t j The change rate a1 of the value along with the refrigeration on time is calculated t j The rate of change of the value with the opening ventilation a2, the total opening time j2, j2=2 (t j -M-k*V s V)/(a1+a2), ti2=j2/4, and recording the stack temperature t after internal recycle shut-down j3 Presetting the time interval of inspection as u, and recording the grain pile temperature t at the beginning of next inspection j4 The next check time interval u2=u×| (M-t) j3 )/(t j4 -t j3 )|。
The invention has the beneficial effects that: the indoor environment of the building is realized to reach 5S, the constant temperature (15-20 ℃ in four seasons), the constant humidity (60% -70% RH), the constant oxygen (maintaining the low oxygen environment and internal circulation), the constant cleanness (no invasion of external insect pests) and the constant intelligence (24-hour real-time intelligent operation in 365 days) are realized to reach zero-carbon operation. In addition, the regional characteristics of the summer hot and winter cold areas are combined, so that the humidity control and the sunlight management are emphasized more; through the external environment monitoring module, the system can monitor indexes such as temperature, humidity, oxygen content and the like of the external environment in real time, upload data to the cloud platform, and provide environment analysis and decision support based on the data. Through the digital grain condition detection module, the system can monitor indexes such as temperature, humidity, gas concentration and the like in the warehouse in real time, evaluate the quality, storage state and the like of grains and provide powerful support for storage management; through intelligent control system, the system can carry out automatically regulated to environmental parameter, keeps the internal environment of warehouse stable to carry out automatic control to grain according to grain condition testing result, realize automatic storage and the protection of grain. The system can realize unified management and analysis of data by connecting with the cloud platform, provide real-time monitoring and early warning, and support remote control and management; by connecting the terminal equipment, the system can realize real-time monitoring and control of the system by a user, and flexible application and management are realized.
Drawings
FIG. 1 is a schematic diagram of an internal environment control system for a zero-carbon warehouse-type building according to the present invention;
fig. 2 is an intelligent control schematic diagram of an environmental control system in a zero-carbon warehouse-like building according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
The embodiment provides a zero carbon type storage class building internal environment control system, the system includes:
the intelligent grain condition monitoring system comprises an external environment monitoring module, a digital grain condition detecting module, an intelligent control system, a gateway, a central controller, a cloud platform and terminal equipment;
the external environment monitoring module, the digital grain condition detecting module and the intelligent control system are respectively connected with the cloud platform and the central controller through the gateway, and the terminal equipment is connected with the cloud platform.
The working principle and the effect of the technical scheme are as follows: through the external environment monitoring module, the system can monitor indexes such as temperature, humidity, oxygen content and the like of the external environment in real time, upload data to the cloud platform, and provide environment analysis and decision support based on the data. Through the digital grain condition detection module, the system can monitor indexes such as temperature, humidity, gas concentration and the like in the warehouse in real time, evaluate the quality, storage state and the like of grains and provide powerful support for storage management; through intelligent control system, the system can carry out automatically regulated to environmental parameter, keeps the internal environment of warehouse stable to carry out automatic control to grain according to grain condition testing result, realize automatic storage and the protection of grain. The system can realize unified management and analysis of data by connecting with the cloud platform, provide real-time monitoring and early warning, and support remote control and management; by connecting the terminal equipment, the system can realize real-time monitoring and control of the system by a user, and flexible application and management are realized.
The embodiment relates to a zero-carbon type storage building internal environment control system, wherein an external environment monitoring system is used for acquiring meteorological data and establishing a database to generate a change trend chart of the environmental conditions of a storage area; the meteorological data comprises external environment temperature T, humidity S and wind speed v f Air pressure P, rainfall, time data.
The working principle and the effect of the technical scheme are as follows: the external environment monitoring system can acquire meteorological data in real time, including external environment temperature T, humidity S and wind speed v f Data such as air pressure P, rainfall, etc.; the external environment monitoring system can store the acquired meteorological data into a database, so that long-term storage and management of the meteorological data are realized; the external environment monitoring system can generate a change trend chart of the environmental condition of the warehouse area based on the meteorological data in the database, and provides reference and decision support for warehouse management; the external environment monitoring system can acquire time data, timestamp the meteorological data and support time period screening and analysis of the meteorological data; the external environment monitoring system can monitor the external environment temperature and humidity in real timeIndexes such as degree, wind speed, air pressure and rainfall provide real-time environmental condition monitoring and early warning for warehouse management.
The embodiment relates to a zero-carbon type storage building internal environment control system, wherein the digital grain condition detection module is used for detecting the temperature T of a warehouse c Wet and temperature t in grain stack j And the functions of intelligent analysis, real-time information feedback, display and forecast and early warning of grain condition data are realized through the central controller and the cloud platform.
Specifically, a temperature sensor and a humidity sensor are arranged to detect grain conditions, wherein at least 3 groups of sensors are arranged above an indoor grain pile to monitor the temperature and/or humidity in a bin, and the average value of the groups of sensors is the final bin temperature and/or bin humidity;
the grain pile monitoring sensor is set as follows:
the height of the grain pile is h meters; firstly, dividing the height of a grain pile into H layers (H is rounded downwards), arranging a group of temperature and humidity sensors in the center of each layer, respectively arranging a plurality of groups of sensors from the center of each layer to the position with the radius of about one meter, wherein the distance between each group of sensors and other groups of sensors is greater than one meter, setting the number of layers of the sensors to be H+1 (the bottommost layer is one layer);
the temperature value obtained by the sensor in the grain pile at a certain moment is T i Humidity W i Wherein i=1, 2,3 … N,
will T i 、W i If the outlier exists, marking the position, the number n and the numerical value of the outlier, and feeding back to the central controller for alarming to remind a background terminal to check the sensor corresponding to the outlier and/or the grain condition of the area where the corresponding sensor is located;
Solving t of temperature in grain pile after outlier removal j ，Grain pile humidity->
Early warning is carried out when the temperature and humidity of the grain stack in the bin or the grain stack are close to the control threshold value, warning is carried out when the temperature and humidity of the grain stack in the bin or the grain stack exceeds the control threshold value, and the digital grain condition detection module counts the warning warehouse position information and the warning times in three days and displays the warning times on a billboard;
if the temperature T of the bin c >t j The background terminal is reminded to check the ventilation equipment.
The working principle and the effect of the technical scheme are as follows: the digital grain condition detection module can detect the bin temperature T c The bin humidity and the internal temperature of the grain pile are monitored by arranging a temperature sensor and a humidity sensor; multilayer sensor arrangement: in order to obtain grain condition data more accurately, the system is provided with at least 3 groups of sensors for monitoring the temperature and humidity in a bin, the height of a grain pile is H meters through dividing grains into different layers, the height of the grain pile is divided into H layers firstly, then a group of temperature and humidity sensors are arranged in the center of each layer, the distance between each group of sensors and other groups of sensors is greater than one meter from the center of each layer to the position with the radius of about one meter, the number of layers of the sensors is H+1, the temperature and humidity of the grain pile are obtained more accurately, and meanwhile, if an outlier system sends out a prompt, a background terminal is reminded to check the conditions of the corresponding sensors and/or grains in the area where the corresponding sensors are located; whether the sensor problem or the grain storage problem is confirmed more timely, and the coping strategies can be executed better and more timely; after outliers are removed, the values of other sensors are averaged, and the average temperature and humidity of the grain stack are more accurately obtained; if the temperature of the bin is higher than that of the grain pile, the ventilation in the bin is not smooth, a background is timely reminded to check ventilation equipment, and the grain storage environment and the grain storage quality are better ensured; the intelligent analysis of the grain condition data is realized through the central controller and the cloud platform, and the data such as grain temperature, grain humidity and the like can be analyzed and compared, so that the grain condition can be better mastered. The system can feed back the change condition of grain condition data in real time, and provides real-time and accurate data support for warehouse management. The system can display grain condition data in a graphical mode, and is convenient for management personnel to perform visual data analysis. Meanwhile, the system can also realize the forecast and early warning of future grain conditions through the analysis of grain condition data, help management staff to make decisions in time and guarantee the grain storage safety.
The embodiment relates to a zero-carbon type storage building internal environment control system, which is used for realizing intelligent control on operation equipment; the operating devices include intelligent ventilation and air conditioning devices.
The intelligent control system controls the operation of the regulating equipment according to the environmental information by acquiring the environmental information;
specifically, the indoor and outdoor environments are periodically and circularly detected, the preset detection time interval is u, environmental information is obtained through a sensor, wherein the outside environment temperature of the bin is made to be T, the outside environment humidity of the bin is made to be S, and the temperature of a grain stack in the bin is made to be T j The temperature threshold is M, preferably 18 ℃, and the difference between the grain pile temperature and the external environment temperature is M1, preferably 5 ℃; the out-of-bin humidity threshold is preferably 70%,
if t j <M, closing an air valve of the air conditioner;
if t j Not less than M and t j -T>M1&S<P, opening external circulation ventilation; calculating t j Rate of change of value a over time; calculating the ventilation on time j1, j 1= (t) j -M-k*V s V)/a, and recording the temperature value t of the grain pile after the external circulation ventilation is closed j1 The method comprises the steps of carrying out a first treatment on the surface of the Wherein k is a temperature coefficient value of 0.2-0.8, is dimensionless and is V s The volume of the standard grain pile is V, and the volume of the grain pile is measured;
the time interval of the preset inspection is u, and the temperature t of the grain pile at the beginning of the next inspection is recorded j2 The next check time interval u1=u×| (M-t) j1 )/(t j2 -t j1 )|；
If t j M, but t j If T is less than or equal to M1 or S is more than or equal to P, starting the internal refrigeration cycle, alternately performing refrigeration and ventilation, and calculating T when the alternating time is Ti2 j The change rate a1 of the value along with the refrigeration on time is calculated t j The rate of change of the value with the opening ventilation a2, the total opening time j2, j2=2 (t j -M-k*V s V)/(a1+a2), ti2=j2/4; wherein k is a temperature coefficient, the value is between 0.2 and 0.8, and V is dimensionless s The volume of the standard grain pile is V, and the volume of the grain pile is measured;
recording the temperature t of the grain pile after internal circulation is closed j3 Presetting the time interval of inspection as u, and recording the grain pile temperature t at the beginning of next inspection j4 The next check time interval u2=u×| (M-t) j3 )/(t j4 -t j3 )|。
The working principle and the effect of the technical scheme are as follows: the storage type building internal environment control system can realize intelligent control of operation equipment, including intelligent ventilation and air conditioning equipment, so as to maintain proper environment temperature and humidity in a storage and protect the quality of stored goods or grains; specifically, the intelligent control system can periodically and circularly detect indoor and outdoor environments, the preset checking time interval is u, and environmental information is obtained through a sensor. Wherein the outside environment temperature of the bin is T, the outside environment humidity of the bin is S, and the temperature of the grain stack in the bin is T j The temperature threshold value is M (preferably 18 ℃), the difference value between the grain pile temperature and the external environment temperature is M1 (preferably 5 ℃), and the external humidity threshold value is P (preferably 70%); according to the acquired environmental information, the intelligent control system can automatically control the operation of the regulating equipment, for example, the intelligent ventilation equipment can be used for regulating the ventilation in the cabin so as to keep proper temperature and humidity; the indoor temperature and humidity are regulated through air conditioning equipment so as to achieve the optimal storage environment; the temperature and the temperature threshold value of the grain pile are set, if the temperature of the grain pile is larger than the temperature threshold value, the outdoor temperature and the humidity are considered, meanwhile, when the difference between the temperature of the grain pile and the outdoor temperature is larger than the threshold value of the difference value, and the outdoor humidity is smaller than the humidity threshold value, the external circulation ventilation is started, the temperature change rate of the temperature and the starting time is calculated, the ratio of the grain volume to the standard volume is multiplied by a coefficient to be set as a reserved value of the temperature according to the volume of the grain, the actual temperature minus the temperature threshold value and the reserved value are set as the temperature required to be reached by the starting equipment, the operation time of the intelligent control equipment is calculated according to the temperature and the change rate of the temperature with time finally required to be reached after the operation of the equipment, the reserved value is reserved according to the volume of the grain pile, the energy consumption is reduced while the grain environment is ensured, the time of next circulation inspection is predicted according to the change rate of the grain pile with time, and the time can be monitored in time The temperature and humidity of the grain stack are reduced, and meanwhile, the data quantity and the energy consumption are reduced; if the temperature of the grain pile is larger than the temperature threshold value, and meanwhile, when the difference between the temperature of the grain pile and the outdoor temperature is smaller than the threshold value of the difference value, or the outdoor humidity is larger than the humidity threshold value, the grain pile is not suitable for open-loop ventilation, and the temperature is reduced and ventilated through internal circulation; the method comprises the steps of respectively calculating the change rate of ventilation and refrigeration temperatures along with time, multiplying the ratio of the volume of a granary to the standard volume by a coefficient to set the ratio as a reserved value of the temperature, subtracting the temperature threshold from the actual temperature and setting the reserved value as the temperature required to be reached by starting equipment, and according to the temperature finally required to be reached after the equipment operates and the change rate of the temperature along with time, intelligently controlling the operation time of the equipment, taking the temperature threshold into consideration, reserving the reserved value according to the volume of the granary, ensuring the reduction of energy consumption while ensuring the granary environment, calculating the total opening time according to the current temperature and the temperature required to be reached, alternately carrying out ventilation and refrigeration for two times respectively, achieving the ideal ventilation and refrigeration effects, dynamically adjusting the time interval of next inspection according to the change condition of the temperature of the grain pile along with time after the equipment is closed, monitoring the temperature and humidity of the grain pile in time, reducing the data quantity and reducing the energy consumption; through the control measures, the system can achieve the effect of optimizing the environment in the bin, and ensure that the quality of stored goods or grains is effectively protected.
The embodiment relates to a zero-carbon storage type building internal environment control system, which also comprises a gas monitoring module and a nitrogen charging adjustment module;
the gas monitoring module monitors the gas concentration in the bin by using a gas concentration sensor and uploads the measurement result to the cloud platform, wherein the gas concentration comprises the carbon dioxide concentration and the oxygen concentration in the bin;
the nitrogen charging adjustment module is used for monitoring the online state of the air adjustment equipment, simultaneously acquiring the measurement result of the air monitoring module, and the intelligent control system realizes automatic control of the nitrogen operation process according to the measurement result.
When the oxygen content in the bin is detected to be close to the threshold value, an early warning is sent out, the starting time and the ending time of nitrogen charging are determined according to the obtained result of the temperature and humidity sensor, and the bin is monitoredThe internal oxygen content approaches a threshold value, and t j <And (3) starting nitrogen charging during M, wherein the bin temperature is monitored simultaneously during the nitrogen charging, and the nitrogen charging time is as follows:
wherein v is c Representing the volume in the bin, wherein the unit is cubic meters; oi represents the initial oxygen concentration in volume fraction (%); of represents the target oxygen concentration in volume fraction (%); f represents the nitrogen filling rate in liters per hour; ln represents natural logarithm, and the bin temperature T at the beginning of nitrogen filling c Bin temperature T in nitrogen charging process c1 The method comprises the steps of carrying out a first treatment on the surface of the And after the nitrogen filling is finished, automatically measuring the temperature of the grain pile, comparing the temperature of the grain pile with a grain pile temperature threshold value, and determining whether to start a ventilation circulation system according to a comparison result.
The working principle and the effect of the technical scheme are as follows: the gas concentration in the bin is monitored in real time through the gas monitoring module, and when the oxygen content is monitored to be close to the threshold value, an early warning can be sent out, so that risks such as deterioration or explosion of grains caused by the too low oxygen content are avoided; meanwhile, the nitrogen charging adjustment module can determine the beginning time and the ending time of nitrogen charging according to the result of the temperature and humidity sensor, and starts to charge nitrogen under the condition that the oxygen content in the monitoring bin is close to the threshold value, thereby preventing the breeding of organisms such as insects, mould and the like and improving the quality and safety of grains; in the process of filling nitrogen into the granary, the ventilation air-conditioning system needs to be closed. This is because the nitrogen is filled to reduce the oxygen content in the bin, thereby preventing the grain from deteriorating and rotting. Simultaneously, ventilation air conditioning system can introduce the outside air inside the warehouse, increases the oxygen content in the storehouse, influences the effect of filling nitrogen. Therefore, the ventilation air-conditioning system is closed in the filling process, the ventilation air-conditioning system is started to control air convection and temperature and humidity after the filling is completed and the ventilation air-conditioning system is kept for a period of time, so that nitrogen is filled in the process of T < M, ventilation and air conditioning are closed in the condition, meanwhile, the temperature of a bin is monitored in the nitrogen filling process, the nitrogen filling time is dynamically adjusted according to the change of the temperature of the bin, the temperature of a grain pile is automatically measured after the completion, the temperature of the grain pile is compared with a threshold value of the temperature of the grain pile, whether a ventilation circulation system is started or not is determined according to a comparison result, the grain storage effect can be greatly improved, and the quality and safety of grains are ensured. The time of nitrogen filling is adjusted according to the volume of the granary, the nitrogen filling rate and the change of the bin temperature in the nitrogen filling process, the bin temperature at the beginning and the coefficient of the bin Wen Chengyi change in the nitrogen filling process are detected, the nitrogen filling time is adjusted, the grains can be ensured to reach the required oxygen content rapidly, the problems of deterioration, decay and the like caused by residual oxygen caused by insufficient nitrogen filling are prevented, and meanwhile, the grains are prevented from being deteriorated due to excessive temperature rise caused by excessive carbon dioxide filling. Meanwhile, after the nitrogen charging is finished, the temperature of the grain pile is automatically measured and compared with a set threshold value, so that the abnormal temperature condition can be timely found, and corresponding measures can be taken. If necessary, the ventilation circulation system is started, so that the ventilation in the bin and the temperature and the humidity are effectively controlled. Thus, the storage life of the grains can be prolonged to the maximum extent, and the manual operation cost for frequent inspection is reduced; the central controller can automatically control the nitrogen charging operation process according to the measurement result obtained in real time, manual intervention is not needed, and the operation efficiency is greatly improved. The operation efficiency is improved and the cost is reduced: the automation of the nitrogen charging operation process can save manpower and time cost, and simultaneously can avoid misoperation caused by artificial factors.
In conclusion, the storage type building internal environment control system can ensure grain quality and safety, improves operation efficiency, reduces cost, and has the advantages of automatic control and the like.
The embodiment of the system for controlling the internal environment of the zero-carbon storage building is characterized in that the central controller is used for collecting data from all subsystems and sending the data to the cloud platform through the gateway for data analysis and processing; the central controller is connected to the intelligent control system, the energy consumption system and the cloud platform through the gateway and coordinates data exchange and control instruction transmission between the intelligent control system, the energy consumption system and the cloud platform; and early warning and alarming are carried out on the abnormal data.
The working principle and the effect of the technical scheme are as follows: the storage type building internal environment control system can realize intelligent and automatic control, improve the operation efficiency and the precision, and ensure the quality and the safety of stored articles. Through the combined action of the central controller, the gateway and the cloud platform, real-time data collection, analysis and processing can be realized, various abnormal conditions can be responded quickly, and reliable early warning and alarming can be sent out. Meanwhile, the system can also perform unified coordination and scheduling on each subsystem, and the running cost of the system is reduced to the greatest extent. In addition, the system can also accurately monitor and manage the energy consumption, save energy resources and reduce environmental pollution. The system is stable, reliable and easy to maintain, and is suitable for various fields of storage type buildings.
The cloud platform is used for classifying, analyzing and processing the data of each module and feeding back the result to the central controller through the gateway; and meanwhile, connecting terminal equipment, and displaying the result in the terminal equipment.
The working principle and the effect of the technical scheme are as follows: the internal environment control system of the warehouse type building can realize automatic environment control so as to ensure the safety and quality of stored commodities. The system is based on a cloud platform, and accurately monitors and adjusts factors such as temperature, humidity and air quality by classifying, analyzing and processing data of each module. The cloud platform feeds back the result to the central controller, so that an administrator can know the environmental conditions inside the warehouse in time and make corresponding decisions. Meanwhile, the connecting terminal equipment displays the result on the terminal equipment, so that a worker can know the environmental condition of the warehouse at any time, and the operation and management are convenient; in a word, the internal environment control system of the warehouse-type building has the characteristics of high efficiency, intelligence, accuracy and the like, and has an irreplaceable effect in improving the quality and safety of stored commodities.
The embodiment provides a storage type building internal environment control method of a zero-carbon storage type building internal environment control system, which comprises the following steps:
s1, acquiring environment data through an external environment monitoring module, a digital grain condition detection module and a gas detection module, wherein the environment data comprises external environment data and internal environment data;
s2, the environment data are sent to a cloud platform through a gateway;
s3, processing the acquired data through the cloud platform, wherein the intelligent control system is connected with the gateway, and intelligent control on the operation equipment is realized by acquiring a processing result of the cloud platform;
s4, the central controller is connected to the intelligent control system cloud platform through a gateway, coordinates data exchange and control instruction transmission between the intelligent control system cloud platform and the central controller, and performs early warning and alarming on abnormal data;
s5, the terminal equipment checks various monitoring data through accessing the cloud platform.
The working principle and the effect of the technical scheme are as follows: the method improves the capability of monitoring and controlling the environmental condition of the warehouse in real time, thereby improving the safety and quality of stored commodities. Meanwhile, the intellectualization and the accuracy of the system enable an administrator to know the condition of the internal environment of the warehouse at any time, and the system is convenient to operate and manage. In addition, the terminal equipment can check various monitoring data through accessing the cloud platform, so that workers can better understand and grasp the internal environment condition of the warehouse; in conclusion, the system has the advantages of intelligence, high efficiency, reliability and the like, and greatly improves the level of modern warehouse management.
The embodiment provides a method for controlling the internal environment of a zero-carbon storage building, which comprises the following steps: the intelligent control system controls and regulates the intelligent equipment to operate according to the environmental information by acquiring the environmental information;
specifically, the indoor environment and the outdoor environment are periodically and circularly detected, the time interval of the preset detection is u, environmental information is obtained through a sensor, the outside environment temperature of the bin is made to be T, the outside environment humidity of the bin is made to be S, the temperature of a grain stack in the bin is set to be tj, the temperature threshold value is set to be M, the temperature is preferably 18 ℃, and the threshold value of the difference value between the temperature of the grain stack and the outside environment temperature is set to be M1, and the temperature is preferably 5 ℃; the out-of-bin humidity threshold is preferably 70%,
if t j <M, closing an air valve of the air conditioner;
if t j Not less than M and t j -T>M1&S<P, opening external circulation ventilation; calculating t j Rate of change of value a over time; according to the changeCalculating the ventilation on time j1, j 1= (t) j -M-k*V s V)/a, and recording the temperature value t of the grain pile after the external circulation ventilation is closed j1 The method comprises the steps of carrying out a first treatment on the surface of the Wherein k is a temperature coefficient, the value is between 0.2 and 0.8, and V is dimensionless s The volume of the standard grain pile is V, and the volume of the grain pile is measured; the time interval of the preset inspection is u, and the temperature t of the grain pile at the beginning of the next inspection is recorded j2 The next check time interval u1=u×| (M-t) j1 )/(t j2 -t j1 )|；
If t j M, but t j If T is less than or equal to M1 or S is more than or equal to P, starting the internal refrigeration cycle, alternately performing refrigeration and ventilation, and calculating T when the alternating time is Ti2 j The change rate a1 of the value along with the refrigeration on time is calculated t j The rate of change of the value with the opening ventilation a2, the total opening time j2, j2=2 (t j -M-k*V s V)/(a1+a2), ti2=j2/4; wherein k is a temperature coefficient, the value is between 0.2 and 0.8, and V is dimensionless s The volume of the standard grain pile is V, and the volume of the grain pile is measured;
recording the temperature t of the grain pile after internal circulation is closed j3 Presetting the time interval of inspection as u, and recording the grain pile temperature t at the beginning of next inspection j4 The next check time interval u2=u×| (M-t) j3 )/(t j4 -t j3 )|。
The working principle and effect of the technical field are as follows: the working principle and the effect of the technical scheme are as follows: the storage type building internal environment control system can realize intelligent control of operation equipment, including intelligent ventilation and air conditioning equipment, so as to maintain proper environment temperature and humidity in a storage and protect the quality of stored goods or grains; specifically, the intelligent control system can periodically and circularly detect indoor and outdoor environments, the preset checking time interval is u, and environmental information is obtained through a sensor. Wherein the outside environment temperature of the bin is T, the outside environment humidity of the bin is S, and the temperature of the grain stack in the bin is T j The temperature threshold value is M (preferably 18 ℃), the difference value between the grain pile temperature and the external environment temperature is M1 (preferably 5 ℃), and the external humidity threshold value is P (preferably 70%); according to the acquired environmental information, the intelligent control system canTo automatically control the operation of the conditioning apparatus, for example by intelligent ventilation to regulate the ventilation of the cabin to maintain a suitable temperature and humidity; the indoor temperature and humidity are regulated through air conditioning equipment so as to achieve the optimal storage environment; if the temperature of the grain pile is larger than the temperature threshold, and the outdoor temperature and the humidity are considered, and meanwhile, when the difference between the temperature of the grain pile and the outdoor temperature is larger than the threshold of the difference value, and the outdoor humidity is smaller than the humidity threshold, the external circulation ventilation is started, the temperature change rate of the grain pile is set according to the temperature and the starting time, the ratio of the grain pile volume to the standard volume is multiplied by a coefficient to be set as a reserved value of the temperature, the actual temperature minus the temperature threshold and the reserved value are set as the temperature required to be reached by the starting equipment, the operation time of the intelligent control equipment is controlled according to the temperature required to be reached finally after the equipment operates and the change rate of the temperature along with the time, the reserved value is reserved according to the volume of the grain pile, the energy consumption is reduced while the grain pile environment is ensured, the time of next circulation inspection is predicted according to the change rate of the grain pile along with the change of the temperature along with the time, the temperature of the grain pile can be monitored timely, the data quantity is reduced, and the energy consumption is reduced; if the temperature of the grain pile is larger than the temperature threshold value, and meanwhile, when the difference between the temperature of the grain pile and the outdoor temperature is smaller than the threshold value of the difference value, or the outdoor humidity is larger than the humidity threshold value, the grain pile is not suitable for open-loop ventilation, and the temperature is reduced and ventilated through internal circulation; the method comprises the steps of respectively calculating the change rate of ventilation and refrigeration temperatures along with time, multiplying the ratio of the volume of a granary to the standard volume by a coefficient to set the ratio as a reserved value of the temperature, subtracting a temperature threshold value from the actual temperature and setting the reserved value as the temperature required to be reached by starting equipment, intelligently controlling the operation time of the equipment according to the temperature finally required to be reached after the equipment is operated and the change rate of the temperature along with time, considering the temperature threshold value, reserving the reserved value according to the volume of the granary, guaranteeing the reduction of energy consumption of the granary environment while simultaneously reducing the energy consumption, calculating the total opening time according to the current temperature and the temperature required to be reached, alternately carrying out ventilation and refrigeration for two times respectively, achieving the ideal ventilation and refrigeration effects, and dynamically controlling the change condition of the temperature of a grain pile along with time after the equipment is closed simultaneously The time interval of the next inspection is adjusted, so that the temperature and humidity of the grain stack can be monitored in time, the data quantity is reduced, and the energy consumption is reduced; through the control measures, the system can achieve the effect of optimizing the environment in the bin, and ensure that the quality of stored goods or grains is effectively protected.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. A zero-carbon type storage building internal environment control system, the system comprising:
the intelligent grain condition monitoring system comprises an external environment monitoring module, a digital grain condition detecting module, an intelligent control system, a gateway, a central controller, a cloud platform and terminal equipment;
the external environment monitoring module, the digital grain condition detecting module and the intelligent control system are respectively connected with the cloud platform and the central controller through a gateway, and the terminal equipment is connected with the cloud platform;
the intelligent control system is used for realizing intelligent control on the operation equipment; the operation equipment comprises intelligent ventilation and air conditioning equipment;
The intelligent control system controls the operation of the regulating equipment according to the environmental information by acquiring the environmental information;
specifically, the indoor and outdoor environments are periodically and circularly detected, the preset detection time interval is u, environmental information is obtained through a sensor, wherein the outside environment temperature of the bin is made to be T, the outside environment humidity of the bin is made to be S, and the temperature of a grain stack in the bin is made to be T j The temperature threshold value is M, and the threshold value of the difference value between the grain pile temperature and the external environment temperature is M1; the humidity threshold outside the bin is P;
if t j <M, closing an air valve of the air conditioner;
if t j Not less than M and t j -T>M1&S<P, opening external circulation ventilation; calculating t j Rate of change of value a over time; according toThe change rate, the ventilation on time j1, j 1= (t) j -M-k*V s V)/a; wherein k is a temperature coefficient, dimensionless, V s The volume of the standard grain pile is V, and the volume of the grain pile is measured; and recording the temperature value t of the grain pile after the external circulation ventilation is closed j1 ；
The time interval of the preset inspection is u, and the temperature t of the grain pile at the beginning of the next inspection is recorded j2 The next check time interval u1=u×| (M-t) j1 )/(t j2 -t j1 )|；
If t j M, but t j If T is less than or equal to M1 or S is more than or equal to P, starting the internal refrigeration cycle, alternately performing refrigeration and ventilation, and calculating T when the alternating time is Ti2 j The change rate a1 of the value with the opening time is calculated t j The rate of change of the value with the opening ventilation a2, the total opening time j2, j2=2 (t j -M-k*V s V)/(a1+a2), ti2=j2/4; wherein k is a temperature coefficient, dimensionless, V s The volume of the standard grain pile is V, and the volume of the grain pile is measured;
recording the temperature t of the grain pile after internal circulation is closed j3 Presetting the time interval of inspection as u, and recording the grain pile temperature t at the beginning of next inspection j4 The next check time interval u2=u×| (M-t) j3 )/(t j4 -t j3 )|；
The system also comprises a gas monitoring module and a nitrogen charging adjustment module;
the gas monitoring module monitors the gas concentration in the bin by using a gas concentration sensor and uploads the measurement result to the cloud platform;
the intelligent control system realizes automatic control on the nitrogen operation process according to the measurement result;
when the oxygen content in the monitoring bin is close to the threshold value, sending out early warning, determining the start time and the end time of nitrogen charging according to the result of the temperature and humidity sensor, and when the oxygen content in the monitoring bin is close to the threshold value, and t j <And (3) starting nitrogen charging during M, wherein the bin temperature is monitored simultaneously during the nitrogen charging, and the nitrogen charging time is as follows:
wherein v is c Representing the volume in the bin, wherein the unit is cubic meters; oi represents the initial oxygen concentration; of represents the target oxygen concentration, F represents the nitrogen filling rate, ln represents the natural logarithm, and the chamber temperature T at the beginning Of nitrogen filling c Bin temperature T in nitrogen charging process c1 The method comprises the steps of carrying out a first treatment on the surface of the And after the nitrogen filling is finished, automatically detecting the temperature of the grain pile, comparing the temperature of the grain pile with a grain pile temperature threshold value, and determining whether to start a ventilation circulation system according to a comparison result.
2. The zero-carbon type storage building internal environment control system according to claim 1, wherein the external environment monitoring system is used for acquiring meteorological data and establishing a database to generate a change trend chart of the environmental conditions of a storage area; the meteorological data comprises external environment temperature T, humidity S and wind speed v f Air pressure P, rainfall and time data.
3. The zero-carbon type storage building interior environment control system according to claim 1, wherein the digital grain condition detection module is used for detecting the temperature T of a warehouse c Wet and temperature t in grain stack j The intelligent analysis, the real-time information feedback, the display and the forecast and early warning of grain condition data are realized through the central controller and the cloud platform;
early warning is carried out when the temperature and humidity of the grain stack or the inside of the cabin are close to the control threshold value, and warning is carried out when the temperature and humidity of the grain stack or the inside of the cabin exceeds the control threshold value;
If the temperature T of the bin c >t j The background terminal is reminded to check the ventilation equipment.
4. The zero-carbon type storage building internal environment control system according to claim 1, wherein the central controller is used for collecting data from all subsystems and sending the data to the cloud platform through the gateway for data analysis and processing; the central controller is connected to the intelligent control system, the energy consumption system and the cloud platform through the gateway and coordinates data exchange and control instruction transmission between the intelligent control system, the energy consumption system and the cloud platform; and pre-warning or alarming is carried out on the abnormal data.
5. The zero-carbon type storage building internal environment control system according to claim 1, wherein a cloud platform is used for classifying, analyzing and processing data of each module and feeding back the result to the central controller through the gateway; and meanwhile, connecting terminal equipment, and displaying the result in the terminal equipment.
6. The method for controlling the internal environment of the zero-carbon storage building is characterized by comprising the following steps of:
s1, acquiring environment data through an external environment monitoring module, a digital grain condition detection module and a gas detection module, wherein the environment data comprises external environment data and internal environment data;
S2, the environment data are sent to a cloud platform through a gateway;
s3, processing the acquired data through the cloud platform, wherein the intelligent control system is connected with the gateway, and intelligent control on the operation equipment is realized by acquiring a processing result of the cloud platform;
s4, the central controller is connected to the intelligent control system cloud platform through a gateway, coordinates data exchange and control instruction transmission between the intelligent control system cloud platform and the central controller, and performs early warning and alarming on abnormal data;
s5, the terminal equipment checks various monitoring data through accessing the cloud platform;
the intelligent control system is connected with the gateway and is used for realizing intelligent control on the operation equipment by acquiring the processing result of the cloud platform; comprising the following steps:
periodically and circularly detecting indoor and outdoor environments, wherein the preset checking time interval is u, environmental information is obtained through a sensor, the outside environment temperature of the bin is made to be T, the outside environment humidity of the bin is made to be S, and the temperature of a grain stack in the bin is made to be T j The temperature threshold value is M, and the threshold value of the difference value between the grain pile temperature and the external environment temperature is M1; the humidity threshold outside the bin is P;
if t j <M, closing an air valve of the air conditioner;
if t j Not less than M and t j -T>M1&S<P, opening external circulation ventilation; calculating t j Rate of change of value a over time; calculating the ventilation on time j1, j 1= (t) j -M-k*V s V)/a, wherein k is a temperature coefficient, dimensionless, V s The volume of the standard grain pile is V, and the volume of the grain pile is measured; and recording the temperature value t of the grain pile after the external circulation ventilation is closed j1 ；
The time interval of the preset inspection is u, and the temperature t of the grain pile at the beginning of the next inspection is recorded j2 The next check time interval u1=u×| (M-t) j1 )/(t j2 -t j1 )|；
If t j M, but t j If T is less than or equal to M1 or S is more than or equal to P, starting the internal refrigeration cycle, alternately performing refrigeration and ventilation, and calculating T when the alternating time is Ti2 j The change rate a1 of the value along with the refrigeration on time is calculated t j The rate of change of the value with the opening ventilation a2, the total opening time j2, j2=2 (t j -M-k*V s V)/(a1+a2), ti2=j2/4; wherein k is a temperature coefficient, dimensionless, V s The volume of the standard grain pile is V, and the volume of the grain pile is measured;
recording the temperature t of the grain pile after internal circulation is closed j3 Presetting the time interval of inspection as u, and recording the grain pile temperature t at the beginning of next inspection j4 The next check time interval u2=u×| (M-t) j3 )/(t j4 -t j3 )|；
The intelligent control system is used for realizing automatic control on the nitrogen operation process according to the measurement result;
When the oxygen content in the monitoring bin is close to the threshold value, sending out early warning, determining the start time and the end time of nitrogen charging according to the result of the temperature and humidity sensor, and when the oxygen content in the monitoring bin is close to the threshold value, and t j <And (3) starting nitrogen charging during M, wherein the bin temperature is monitored simultaneously during the nitrogen charging, and the nitrogen charging time is as follows:
wherein v is c Representing the volume in the bin, wherein the unit is cubic meters; oi represents the initial oxygen concentration; of represents the target oxygen concentration, F represents the nitrogen filling rate, ln represents the natural logarithm, and the chamber temperature T at the beginning Of nitrogen filling c Bin temperature T in nitrogen charging process c1 The method comprises the steps of carrying out a first treatment on the surface of the And after the nitrogen filling is finished, automatically detecting the temperature of the grain pile, comparing the temperature of the grain pile with a grain pile temperature threshold value, and determining whether to start a ventilation circulation system according to a comparison result.
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| CN117313984A (en) * | 2023-08-31 | 2023-12-29 | 中国标准化研究院 | Grain condition monitoring method, device and system |
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