Live pig farm air purification system and purification method

Abstract

The invention discloses an air purification system and method for a pig farm, and relates to the technical field of air purification of farms. A preliminary design scheme, customized based on the evaluation result, of the multi-stage filtering system, the photocatalytic oxidation device and the intelligent monitoring system is obtained; based on a preliminary design scheme, a multi-stage filtering system, a photocatalytic oxidation device and an intelligent monitoring system are actually arranged and connected by adopting an installation and integration method, and functions of data acquisition and control command transmission are realized; the method comprises the following steps: performing inspection and initialization setting on equipment, initializing an intelligent monitoring system and setting basic parameters based on equipment layout, starting an air purification system by adopting an operation and monitoring method based on the set basic parameters, monitoring air quality indexes in real time, and adjusting operation parameters through an intelligent control system.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification in farms, and particularly to an air purification system and a purification method for a live pig farm. Background Art

[0002] The air purification technology in live pig farms mainly involves technologies for removing or reducing pollutants such as harmful gases, particulate matter, and microorganisms in the air.

[0003] In the field of air purification in farms, existing technologies often adopt general air purification solutions, without fully considering the specific environmental conditions of different farms. Moreover, traditional air purification systems do not have a real-time monitoring function, resulting in the inability to timely understand the changes in air quality and make corresponding adjustments. At the same time, the long-term stable operation of the air purification system depends on regular maintenance, but existing technologies lack a scientific basis in formulating maintenance plans, which easily leads to premature failure of equipment or waste of resources. Summary of the Invention

[0004] In view of the above existing problems, the present invention is proposed.

[0005] Therefore, the present invention provides an air purification method for a live pig farm to solve the problems that existing technologies often adopt general air purification solutions, without fully considering the specific environmental conditions of different farms, and traditional air purification systems do not have a real-time monitoring function, resulting in the inability to timely understand the changes in air quality and make corresponding adjustments.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides an air purification method for a live pig farm, which includes:

[0008] Comprehensively evaluating the air quality status of a live pig farm by using an environmental assessment and system design method to obtain a preliminary design plan for a multi-stage filtration system, a photocatalytic oxidation device, and an intelligent monitoring system customized based on the evaluation results;

[0009] Based on the preliminary design plan, actually arranging and connecting the multi-stage filtration system, the photocatalytic oxidation device, and the intelligent monitoring system by using an installation and integration method, and realizing the functions of data collection and control command transmission;

[0010] Checking and initializing the settings of the equipment, initializing the intelligent monitoring system based on the equipment layout and setting basic parameters, and based on the set basic parameters, starting the air purification system by using an operation and monitoring method, real-time monitoring air quality indicators and adjusting operation parameters through an intelligent control system;

[0011] Adopting a regular maintenance and upgrade method to formulate a maintenance plan according to the system operation situation and data analysis results;

[0012] Adopt an effect evaluation and feedback method to regularly evaluate the effect of the air purification plan and obtain the evaluation results;

[0013] Based on the preliminary design plan, set thresholds, compare the evaluation results with the thresholds to obtain abnormal results, and optimize the system operation parameters based on the abnormal results to obtain the final purification plan.

[0014] As a preferred solution of the air purification method for pig farms according to the present invention, wherein: the air quality status of the pig farm is comprehensively evaluated by using an environmental evaluation and system design method, and a preliminary design plan for a multi-stage filtration system, a photocatalytic oxidation device and an intelligent monitoring system customized based on the evaluation results is obtained. The specific steps are as follows:

[0015] Select multiple representative locations in the pig farm and install multiple types of sensors;

[0016] The multiple types of sensors include ammonia sensors, hydrogen sulfide sensors and particulate matter sensors;

[0017] The multiple representative locations include locations near the pigsty entrance, the central area and the ventilation opening;

[0018] Set a fixed-period data collection period, obtain a sufficient number of sample points to ensure the effectiveness of data analysis, and calculate the air quality index AQI. The expression is:

[0019]

[0020] wherein, C i is the concentration of the i-th pollutant, C min and C max are respectively the historical minimum value and the highest value of the pollutant concentration, and α is an adjustment factor.

[0021] Judge the overall air quality status according to the AQI value, and combine the terrain of the breeding site and the building layout factors to design the air purification system architecture diagram of the farm.

[0022] As a preferred solution of the air purification method for pig farms according to the present invention, wherein: based on the preliminary design plan, the multi-stage filtration system, the photocatalytic oxidation device and the intelligent monitoring system are actually arranged and connected by using an installation and integration method, and the data collection and control command transmission functions are realized. The specific steps are as follows:

[0023] According to the equipment list listed in the preliminary design plan, purchase components;

[0024] The components include a pre-filter, a HEPA filter, an activated carbon filter, a modified TiO2 photocatalytic oxidation device and its supporting light source, and a sensor group of the intelligent monitoring system;

[0025] According to the layout diagram in the preliminary design plan, install each component of the multi-stage filtration system, photocatalytic oxidation device and intelligent monitoring system at the selected location in the breeding farm;

[0026] Connect each sensor of the intelligent monitoring system to the central control system, set the data acquisition frequency and format to ensure that air quality data can be obtained in real time;

[0027] Configure the central control system so that it can receive data from the sensors and adjust the fan speed and light intensity of the air purification equipment according to the preset algorithm. The expressions are:

[0028] V f = k1×AQI + b1;

[0029] I L = k2×AQI + b2;

[0030] Among them, k1 and k2 are adjustment coefficients, b1 and b2 are basic offsets, and AQI is the air quality index, which is used to dynamically adjust the fan speed and light intensity to maintain the best purification effect;

[0031] Establish a data transmission channel to upload the data collected on-site to the cloud server in real time;

[0032] Set the alarm threshold. When the index exceeds the set range, the system sends an alarm notification to the management personnel.

[0033] As a preferred scheme of the air purification method for the pig breeding farm described in the present invention, wherein: for the inspection and initialization settings of the equipment, based on the equipment layout, initialize the intelligent monitoring system and set the basic parameters. Based on the set basic parameters, use the operation and monitoring method to start the air purification system, and monitor the air quality indicators in real time and adjust the operation parameters through the intelligent control system. The specific steps are as follows:

[0034] Calibrate the sensor group using a standard test source to ensure the accuracy of data acquisition;

[0035] According to the layout diagram in the preliminary design plan, input the specific position information of each sensor into the central control system and assign a unique identification code to it;

[0036] Initialize the intelligent monitoring system and set the basic operation parameters. The operation parameters include data acquisition frequency, data transmission protocol, and alarm threshold;

[0037] Start the entire air purification system according to the set basic parameters;

[0038] Activate the fan to maintain air flow, and gradually turn on the filtration systems at all levels and the photocatalytic oxidation device;

[0039] During the operation of the system, calculate the performance index P of the system sys , and the expression is:

[0040]

[0041] where P i is the actual value of the i-th key performance indicator, P min and P max are the historical minimum and maximum values of this indicator respectively, and N represents the number of performance indicators;

[0042] Real-time monitor the air quality indicators, and dynamically adjust the operation parameters through the intelligent control system;

[0043] When the detected ammonia concentration exceeds the threshold , automatically increase the fan speed V f and the light intensity I L to improve the purification efficiency, and the expression is:

[0044]

[0045] where k1 and k2 are adjustment coefficients, and b1 and b2 are basic offsets.

[0046] As a preferred scheme of the air purification method for pig farms described in the present invention, wherein: the regular maintenance and upgrade method formulates a maintenance plan according to the system operation conditions and data analysis results, and the specific steps are:

[0047] Regularly extract historical operation data from the intelligent monitoring system;

[0048] The historical operation data includes air quality indicators, equipment operation status, and energy consumption information;

[0049] Based on the performance index of the system, evaluate the maintenance requirements of the current system, and calculate the cumulative load L of the filter in the multi-stage filtration system filter , and the expression is:

[0050]

[0051] where C pollutant (t) represents the concentration of a specific pollutant at time t, and t0 and t1 are the start and end time points respectively;

[0052] For the photocatalytic oxidation device, evaluate the attenuation degree of the light source;

[0053] By comparing the light intensity at the initial installation with the current measured value and calculating the attenuation rate D light , the expression is:

[0054]

[0055] where I L,cur is the light intensity at the initial installation, and I L,init is the current measured value;

[0056] Formulate a specific maintenance plan and implement specific maintenance measures according to the maintenance plan;

[0057] The maintenance measures include replacing the pre-filter, HEPA filter, activated carbon filter, and cleaning or replacing the light source of the photocatalytic oxidation device;

[0058] After each maintenance, recalibrate the sensor group to ensure the accuracy of data collection, and adjust the parameter settings of the central control system to adapt it to the new operating conditions and obtain an optimized operating state after maintenance.

[0059] As a preferred scheme of the air purification method for the pig farm described in the present invention, wherein: the effect evaluation and feedback method is used to regularly evaluate the effect of the air purification scheme and obtain the evaluation result. The specific steps are as follows:

[0060] Set specific air quality improvement indicators according to the expected goals in the preliminary design scheme;

[0061] Extract the latest air quality data from the intelligent monitoring system within each evaluation period;

[0062] The air quality data includes ammonia concentration, hydrogen sulfide concentration, particulate matter concentration, fan speed, and light intensity;

[0063] Based on the air quality data, calculate the environmental performance index. The expression is:

[0064]

[0065] where C i represents the actual concentration of the i-th pollutant, C i,goal is the target concentration, β is the adjustment factor, and N represents the number of pollutant types;

[0066] Evaluate the effectiveness of the current air purification scheme according to the calculated EPI value;

[0067] If the EPI is close to 1, it means that the system is running well and the expected goal has been achieved;

[0068] Otherwise, the reason needs to be further investigated;

[0069] Compare the data in different time periods, identify the factors that cause the air quality to fail to meet the standards, and formulate targeted improvement measures;

[0070] When it is found that the ammonia concentration in a certain area continues to be higher than the target value, increase the ventilation volume in this area or replace the filter with higher efficiency.

[0071] As a preferred solution of the air purification method for pig farms described in the present invention, wherein: based on the preliminary design scheme, set a threshold value, compare the evaluation result with the threshold value to obtain an abnormal result, and optimize the system operation parameters based on the abnormal result to obtain the final purification scheme. The specific steps are as follows:

[0072] According to the expected goals in the preliminary design scheme and relevant industry standards, set specific concentration thresholds for each key air pollutant;

[0073] Use the previously calculated environmental performance index EPI and the real-time monitored specific pollutant concentration data, compare them with the corresponding threshold values, and calculate the deviation rate D i , the expression is:

[0074]

[0075] wherein, C i represents the actually measured concentration, and T i is the set threshold value;

[0076] According to the magnitude of the deviation rate D i , classify all detected abnormal situations;

[0077] When it is considered that the ammonia concentration significantly exceeds the standard;

[0078] When it is regarded as a mild over-standard;

[0079] For the identified abnormal situations, adjust the operation parameters of the system to optimize the purification effect;

[0080] Sort out all the adjustment measures, operation parameter settings and final effects involved in the whole process into a document as a guiding manual for future operation and maintenance work;

[0081] The guiding manual includes equipment maintenance plans, operation guides and emergency handling procedures.

[0082] In a second aspect, the present invention provides an air purification system for pig farms, including:

[0083] An environmental assessment module, an integration module, an initialization setting module, a monitoring module, a regular maintenance module and a feedback module;

[0084] The environmental assessment module is used to install multi-type sensors at multiple representative locations in the pig farm, set a fixed-period data collection period to calculate the Air Quality Index (AQI), judge the overall air quality status according to the AQI value, and design a preliminary design plan for a customized air purification system in combination with the terrain and building layout factors of the breeding site;

[0085] The integration module is used to purchase and install the required air purification equipment and components of the intelligent monitoring system according to the preliminary design plan, ensure the coordinated operation between components, configure the central control system to realize the functions of data collection and control command transmission, and establish a safe and reliable data transmission channel for remote monitoring.

[0086] The initialization setting module is used to calibrate the sensor group to ensure the accuracy of data collection; initialize the intelligent monitoring system and set basic operation parameters, start the entire air purification system, activate the fan to maintain air flow, and gradually turn on the filtration systems at all levels and the photocatalytic oxidation device to ensure that the system operates according to the preset parameters;

[0087] The monitoring module is used to monitor air quality indicators in real time and dynamically adjust operation parameters through the intelligent control system, calculate the system performance index to evaluate the system operation status, and automatically increase purification measures to improve purification efficiency when detecting that the concentration of specific pollutants exceeds the standard;

[0088] The regular maintenance module is used to regularly extract historical operation data from the intelligent monitoring system, evaluate the current system's maintenance requirements, formulate specific maintenance plans and implement maintenance measures, and recalibrate the sensor group and adjust the parameter settings of the central control system after each maintenance to ensure the optimized operation status of the system;

[0089] The feedback module is used to regularly evaluate the effect of the air purification plan, calculate the Environmental Performance Index (EPI) based on air quality data, identify the factors causing the air quality not to meet the standard and formulate targeted improvement measures, set thresholds and compare with the evaluation results, optimize the system operation parameters for abnormal situations, form the final purification plan, and organize it into a document as a guidance manual for future operation and maintenance work.

[0090] In a third aspect, the present invention provides a computer device, including a memory and a processor, where the memory stores a computer program, and: when the computer program is executed by the processor, it implements any step of the air purification method for pig farms as described in the first aspect of the present invention.

[0091] Fourthly, the present invention provides a computer-readable storage medium, on which a computer program is stored, wherein: when the computer program is executed by a processor, any step of the air purification method for a pig farm as described in the first aspect of the present invention is implemented.

[0092] The beneficial effects of the present invention are as follows: By purchasing and installing the components of the required air purification equipment and intelligent monitoring system according to the preliminary design plan, ensuring the collaborative work among the components, configuring the central control system to implement the data acquisition and control command transmission functions, and establishing a secure and reliable data transmission channel for remote monitoring, the efficient deployment and seamless integration of the system are achieved. By calibrating the sensor group, the accuracy of data acquisition is ensured, the intelligent monitoring system is initialized and the basic operation parameters are set, the entire air purification system is started, the fan is activated to maintain air flow, and the filtration systems and photocatalytic oxidation devices at all levels are gradually turned on to ensure that the system operates according to the preset parameters, ensuring that the system is in the best state at startup, reducing errors or failures caused by improper initial settings, thereby achieving the purpose of improving the stability and reliability of the system and extending the service life of the equipment. Through the environmental assessment and system design steps, the accurate measurement of the air quality in the farm and the design of customized solutions are realized, not only ensuring the long-term stable operation of the system, but also improving the purification effect of the system through continuous optimization, thereby achieving the purpose of extending the equipment life and reducing the maintenance cost. Description of the Drawings

[0093] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0094] Figure 1 It is a flowchart of the air purification method for a pig farm in Embodiment 1.

[0095] Figure 2 It is a schematic diagram of the air purification system for a pig farm in Embodiment 1. Detailed Embodiments

[0096] To make the above objects, features, and advantages of the present invention more obvious and understandable, the detailed embodiments of the present invention will be described below with reference to the drawings in the specification.

[0097] Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0098] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures or characteristics that may be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it an individual or selectively mutually exclusive embodiment with other embodiments.

[0099] Embodiment 1, referring to Figure 1 and Figure 2 , is the first embodiment of the present invention. This embodiment provides an air purification method for a live pig farm, including the following steps:

[0100] S1. Comprehensively evaluate the air quality status of the live pig farm by using the environmental assessment and system design method to obtain a preliminary design plan for a multi-stage filtration system, a photocatalytic oxidation device and an intelligent monitoring system customized based on the evaluation results;

[0101] Furthermore, select multiple representative locations in the live pig farm and install multiple types of sensors;

[0102] The multiple types of sensors include ammonia sensors, hydrogen sulfide sensors and particulate matter sensors;

[0103] The multiple representative locations include locations near the pig house entrance, the central area and the ventilation opening;

[0104] Set a fixed-period data collection period, obtain a sufficient number of sample points to ensure the effectiveness of data analysis, calculate the air quality index AQI, and the expression is:

[0105]

[0106] Among them, C i is the concentration of the i-th pollutant, C min and C max are respectively the historical minimum value and the highest value of the pollutant concentration, and α is an adjustment factor.

[0107] Judge the overall air quality status according to the AQI value, and combine the topographic and building layout factors of the breeding site to design the air purification system architecture diagram of the farm;

[0108] It should be noted that by installing multiple types of sensors at multiple representative locations and setting a fixed-period data collection period, not only can the air quality status of different areas in the farm be comprehensively understood, but also a scientific basis can be provided for the subsequent design of the air purification system. The method can accurately identify the pollution sources and their influence ranges, ensure that the designed purification system is more in line with the actual needs, thereby improving the purification efficiency and economic benefits.

[0109] S2. Based on the preliminary design plan, use the installation and integration method to actually arrange and connect the multi-stage filtration system, photocatalytic oxidation device, and intelligent monitoring system, and implement the functions of data collection and control command transmission;

[0110] Furthermore, according to the equipment list listed in the preliminary design plan, purchase components;

[0111] The components include a pre-filter, HEPA filter, activated carbon filter, modified TiO2 photocatalytic oxidation device and its supporting light source, and the sensor group of the intelligent monitoring system;

[0112] According to the layout diagram in the preliminary design plan, install each component of the multi-stage filtration system, photocatalytic oxidation device, and intelligent monitoring system at a selected location in the farm;

[0113] Connect each sensor of the intelligent monitoring system to the central control system, set the data collection frequency and format to ensure that air quality data can be obtained in real time;

[0114] Configure the central control system so that it can receive data from the sensors and adjust the fan speed and light intensity of the air purification equipment according to the preset algorithm. The expressions are:

[0115] V f = k1 × AQI + b1;

[0116] I L = k2 × AQI + b2;

[0117] Where k1 and k2 are adjustment coefficients, b1 and b2 are basic offsets, and AQI is the air quality index, which is used to dynamically adjust the fan speed and light intensity to maintain the best purification effect;

[0118] Establish a data transmission channel to upload the data collected on-site to the cloud server in real time;

[0119] Set the alarm threshold. When the index exceeds the set range, the system sends an alarm notification to the management personnel;

[0120] It should be noted that during the installation and integration process, strictly install and connect the components according to the layout diagram in the preliminary design plan to ensure the coordinated operation of each device. In addition, through real-time data transmission to the cloud server, not only the response speed of the system is improved, but also remote monitoring and management are facilitated, which helps to detect and solve potential problems in a timely manner, ensure the stable operation of the system, and reduce the maintenance cost.

[0121] S3. Inspect and initialize the device. Based on the device layout, initialize the intelligent monitoring system and set the basic parameters. Based on the set basic parameters, start the air purification system using the operation and monitoring method, and monitor the air quality indicators in real time and adjust the operation parameters through the intelligent control system;

[0122] Furthermore, calibrate the sensor group using a standard test source to ensure the accuracy of data collection;

[0123] According to the layout diagram in the preliminary design scheme, input the specific position information of each sensor into the central control system and assign a unique identification code to it;

[0124] Initialize the intelligent monitoring system and set the basic operation parameters. The operation parameters include data collection frequency, data transmission protocol, and alarm threshold;

[0125] Start the entire air purification system according to the set basic parameters;

[0126] Activate the fan to maintain air flow, and gradually turn on the filtration systems at all levels and the photocatalytic oxidation device;

[0127] Calculate the performance index P of the system during system operation sys , and the expression is:

[0128]

[0129] where P i is the actual value of the i-th key performance indicator, P min and P max are the historical minimum and maximum values of this indicator respectively, and N represents the number of performance indicators;

[0130] Monitor the air quality indicators in real time and dynamically adjust the operation parameters through the intelligent control system;

[0131] When the detected ammonia concentration exceeds the threshold , automatically increase the fan speed V f and the light intensity I L to improve the purification efficiency, and the expression is:

[0132]

[0133] where k1 and k2 are adjustment coefficients, and b1 and b2 are basic offsets;

[0134] It should be noted that equipment inspection and initialization settings are crucial steps to ensure the normal operation of the system. By calibrating the sensor group and inputting accurate position information, the accuracy of data collection can be guaranteed, and errors or failures caused by improper initial settings can be avoided. In addition, dynamically adjusting the fan speed and light intensity to maintain the best purification effect further improves the flexibility and adaptability of the system and ensures long-term stable operating performance.

[0135] S4. Adopt regular maintenance and upgrade methods to formulate a maintenance plan based on the system operation conditions and data analysis results;

[0136] Furthermore, regularly extract historical operation data from the intelligent monitoring system;

[0137] The historical operation data includes air quality indicators, equipment operation status, and energy consumption information;

[0138] Based on the performance index of the system, evaluate the maintenance requirements of the current system, and calculate the cumulative load L of the filter in the multi-stage filtration system filter , and the expression is:

[0139]

[0140] Among them, C pollutant (t) represents the concentration of a specific pollutant at time t, and t0 and t1 are the start and end time points respectively;

[0141] For the photocatalytic oxidation device, evaluate the attenuation degree of the light source;

[0142] By comparing the light intensity at the initial installation with the current measured value, and calculate the attenuation rate D light , and the expression is:

[0143]

[0144] Among them, I L,cur is the light intensity at the initial installation, and I L,init is the current measured value;

[0145] Formulate a specific maintenance plan and implement specific maintenance measures according to the maintenance plan;

[0146] The maintenance measures include replacing the pre-filter, HEPA filter, activated carbon filter, and cleaning or replacing the light source of the photocatalytic oxidation device;

[0147] After each maintenance, recalibrate the sensor group to ensure the accuracy of data collection, and adjust the parameter settings of the central control system to make it adapt to the new operating conditions and obtain an optimized operating state after maintenance;

[0148] It should be noted that regular maintenance can not only extend the service life of the equipment, but also keep the system running efficiently by timely replacing or cleaning key components. By calculating the cumulative load of the multi-stage filtration system and the light source attenuation degree of the photocatalytic oxidation device, a maintenance plan can be scientifically and reasonably formulated to reduce unnecessary downtime, ensure that the system is always in the best state, and improve the overall purification effect.

[0149] S5. Regularly evaluate the effect of the air purification plan by using the effect evaluation and feedback method, and obtain the evaluation results;

[0150] Furthermore, set specific air quality improvement indicators according to the expected goals in the preliminary design plan;

[0151] Extract the latest air quality data from the intelligent monitoring system within each evaluation period;

[0152] The air quality data includes ammonia concentration, hydrogen sulfide concentration, particulate matter concentration, fan speed, and light intensity;

[0153] Based on the air quality data, calculate the environmental performance index, and the expression is:

[0154]

[0155] where C i represents the actual concentration of the i-th pollutant, C i,goal is the target concentration, β is the adjustment factor, and N represents the number of pollutant types;

[0156] Evaluate the effectiveness of the current air purification plan according to the calculated EPI value;

[0157] If the EPI is close to 1, it means that the system is running well and has achieved the expected goal;

[0158] Otherwise, the reasons need to be further investigated;

[0159] Compare the data in different time periods, identify the factors that cause the air quality not to meet the standard, and formulate targeted improvement measures;

[0160] When it is found that the ammonia concentration in a certain area continues to be higher than the target value, increase the ventilation volume in this area or replace the filter with higher efficiency;

[0161] It should be noted that the effect evaluation and feedback mechanism is an important means to continuously optimize the air purification plan. By regularly extracting the latest air quality data and calculating the environmental performance index EPI, the operation effect of the current system can be objectively evaluated. Once it is found that the air quality does not meet the standard, targeted improvement measures such as increasing the ventilation volume or replacing the filter with higher efficiency should be taken immediately to ensure that the system always maintains high purification ability and protects animal health.

[0162] S6. Based on the preliminary design scheme, set thresholds, compare the evaluation results with the thresholds to obtain abnormal results, and optimize the system operation parameters based on the abnormal results to obtain the final purification scheme;

[0163] Furthermore, according to the expected goals in the preliminary design scheme and relevant industry standards, set specific concentration thresholds for each key air pollutant;

[0164] Use the previously calculated Environmental Performance Index (EPI) and the specifically monitored pollutant concentration data in real time, compare them with the corresponding thresholds, and calculate the deviation rate D i , and the expression is:

[0165]

[0166] where C i represents the actually measured concentration, and T i is the set threshold;

[0167] According to the magnitude of the deviation rate D i , classify all detected abnormal situations;

[0168] When , it is considered that the ammonia concentration significantly exceeds the standard;

[0169] When , it is regarded as a mild over - standard;

[0170] For the identified abnormal situations, adjust the system operation parameters to optimize the purification effect;

[0171] Organize all adjustment measures, operation parameter settings, and final effects involved in the whole process into a document as a guidance manual for future operation and maintenance work;

[0172] The guidance manual includes equipment maintenance plans, operation guides, and emergency handling procedures;

[0173] It should be noted that setting specific concentration thresholds and comparing them with real - time monitoring data can quickly identify abnormal situations and take corresponding optimization measures. This can not only timely adjust the system operation parameters to cope with sudden pollution events, but also continuously optimize the purification strategy, forming a complete operation and maintenance guidance manual. This manual not only contains detailed equipment maintenance plans and operation guides, but also provides emergency handling procedures, providing strong support for daily management and emergency handling of incidents.

[0174] This embodiment also provides a pig farm air purification system, including:

[0175] An environmental assessment module, an integration module, an initialization setting module, a monitoring module, a regular maintenance module, and a feedback module;

[0176] The environmental assessment module is used to install multi-type sensors at multiple representative locations in the pig farm, set a fixed-period data collection period to calculate the Air Quality Index (AQI), judge the overall air quality status according to the AQI value, and design a customized preliminary design plan for the air purification system in combination with the topographical and architectural layout factors of the breeding site;

[0177] The integration module is used to purchase and install the required air purification equipment and components of the intelligent monitoring system according to the preliminary design plan, ensure the collaborative work among the components, configure the central control system to realize the functions of data collection and control command transmission, and establish a safe and reliable data transmission channel for remote monitoring.

[0178] The initialization setting module is used to calibrate the sensor group to ensure the accuracy of data collection; initialize the intelligent monitoring system and set the basic operation parameters, start the entire air purification system, activate the fan to maintain air flow, gradually turn on the filtration systems at all levels and the photocatalytic oxidation device to ensure that the system operates according to the preset parameters;

[0179] The monitoring module is used to monitor the air quality indicators in real time and dynamically adjust the operation parameters through the intelligent control system, calculate the system performance index to evaluate the system operation status, and automatically increase the purification measures to improve the purification efficiency when detecting that the concentration of specific pollutants exceeds the standard;

[0180] The regular maintenance module is used to regularly extract the historical operation data from the intelligent monitoring system, evaluate the current system maintenance requirements, formulate specific maintenance plans and implement maintenance measures, and recalibrate the sensor group and adjust the parameter settings of the central control system after each maintenance to ensure the optimized operation status of the system;

[0181] The feedback module is used to regularly evaluate the effect of the air purification plan, calculate the Environmental Performance Index (EPI) based on the air quality data, identify the factors causing the air quality not to meet the standard and formulate targeted improvement measures, set thresholds and compare with the evaluation results, optimize the system operation parameters for abnormal situations, form the final purification plan, and organize it into a document as a guiding manual for future operation and maintenance work.

[0182] This embodiment also provides a computer device applicable to the air purification method in the pig farm, including: a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to implement the air purification method in the pig farm as proposed in the above embodiment.

[0183] The computer device may be a terminal, which includes a processor, a memory, a communication interface, a display screen, and an input device connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used to communicate with external terminals in a wired or wireless manner, and the wireless manner can be implemented through Wi-Fi, carrier networks, NFC (Near Field Communication), or other technologies. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads provided on the housing of the computer device, or an external keyboard, touchpad, or mouse, etc.

[0184] This embodiment also provides a storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the method for purifying the air in a pig farm as proposed in the above embodiment; the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (abbreviated as SRAM), electrically erasable programmable read-only memory (abbreviated as EEPROM), erasable programmable read-only memory (abbreviated as EPROM), programmable read-only memory (abbreviated as PROM), read-only memory (abbreviated as ROM), magnetic memory, flash memory, magnetic disks, or optical discs.

[0185] In summary, the present invention purchases and installs the components of the required air purification equipment and intelligent monitoring system according to the preliminary design scheme, ensures the collaborative work among the components, configures the central control system to achieve the functions of data acquisition and control command transmission, and establishes a secure and reliable data transmission channel for remote monitoring, realizing the efficient deployment and seamless integration of the system. By calibrating the sensor group, the accuracy of data acquisition is ensured, the intelligent monitoring system is initialized and the basic operation parameters are set, the entire air purification system is started, the fan is activated to maintain air flow, and the filtration systems and photocatalytic oxidation devices at all levels are gradually turned on to ensure that the system operates according to the preset parameters, ensuring that the system is in the best state at startup, reducing errors or failures caused by improper initial settings, thereby achieving the purpose of improving the stability and reliability of the system and extending the service life of the equipment. Through the environmental assessment and system design steps, the accurate measurement of the air quality in the farm and the design of customized solutions are realized, not only ensuring the long-term stable operation of the system, but also improving the purification effect of the system through continuous optimization, thereby achieving the purpose of extending the equipment life and reducing the maintenance cost.

[0186] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A method for purifying air in a live pig farm, characterized in that: Including: Adopt environmental assessment and system design methods to comprehensively evaluate the air quality status of a pig farm, and obtain a preliminary design plan for a multi-stage filtration system, a photocatalytic oxidation device, and an intelligent monitoring system customized based on the evaluation results; Based on the preliminary design plan, use installation and integration methods to actually arrange and connect the multi-stage filtration system, the photocatalytic oxidation device, and the intelligent monitoring system, and implement data collection and control command transmission functions; Inspect and initialize the equipment. Based on the equipment layout, initialize the intelligent monitoring system and set basic parameters. Based on the set basic parameters, use operation and monitoring methods to start the air purification system, real-time monitor air quality indicators, and adjust operation parameters through the intelligent control system; Adopt regular maintenance and upgrade methods to formulate a maintenance plan according to the system operation conditions and data analysis results; Adopt effect evaluation and feedback methods to regularly evaluate the effect of the air purification plan and obtain evaluation results; Based on the preliminary design plan, set thresholds, compare the evaluation results with the thresholds to obtain abnormal results, and optimize the system operation parameters based on the abnormal results to obtain the final purification plan.

2. The air purification method for a live pig farm according to claim 1, characterized in that: The specific steps for adopting environmental assessment and system design methods to comprehensively evaluate the air quality status of a pig farm and obtain a preliminary design plan for a multi-stage filtration system, a photocatalytic oxidation device, and an intelligent monitoring system customized based on the evaluation results are as follows: Select multiple representative locations in the pig farm and install multiple types of sensors; The multiple types of sensors include ammonia sensors, hydrogen sulfide sensors, and particulate matter sensors; The multiple representative locations include locations near the pigsty entrance, the central area, and the ventilation opening; Set a fixed-period data collection period, obtain a sufficient number of sample points to ensure the effectiveness of data analysis, and calculate the air quality index AQI. The expression is: Among them, C i is the concentration of the i-th pollutant, C min and C max are respectively the historical minimum value and the historical maximum value of the pollutant concentration, and α is the adjustment factor. Judge the overall air quality status according to the AQI value, and combine the topographic and building layout factors of the breeding site to design the air purification system architecture diagram of the farm.

3. The air purification method for a live pig farm as described in claim 2, characterized in that: The specific steps for using installation and integration methods to actually arrange and connect the multi-stage filtration system, the photocatalytic oxidation device, and the intelligent monitoring system based on the preliminary design plan and implement data collection and control command transmission functions are as follows: Purchase components according to the equipment list listed in the preliminary design plan; The components include pre-filters, HEPA filters, activated carbon filters, modified TiO2 photocatalytic oxidation devices and their supporting light sources, and the sensor group of the intelligent monitoring system; Install each component of the multi-stage filtration system, the photocatalytic oxidation device, and the intelligent monitoring system at the selected location in the farm according to the layout diagram in the preliminary design plan; Connect each sensor of the intelligent monitoring system to the central control system, set the data collection frequency and format to ensure that air quality data can be obtained in real time; Configure the central control system so that it can receive data from the sensors and adjust the fan speed and light intensity of the air purification equipment according to the preset algorithm. The expression is: V f = k1 × AQI + b1; I L = k2 × AQI + b2; Among them, k1 and k2 are adjustment coefficients, b1 and b2 are basic offsets, and AQI is the Air Quality Index, which is used to dynamically adjust the fan speed and light intensity to maintain the best purification effect; Establish a data transmission channel to upload the data collected on-site to the cloud server in real time; Set an alarm threshold. When the index exceeds the set range, the system sends an alarm notification to the management personnel.

4. The air purification method for a live pig farm according to claim 3, characterized in that: The inspection and initialization settings of the equipment are as follows: Based on the equipment layout, initialize the intelligent monitoring system and set basic parameters. Based on the set basic parameters, start the air purification system using the operation and monitoring method, real-time monitor the air quality indicators, and adjust the operation parameters through the intelligent control system. The specific steps are as follows: Calibrate the sensor group using a standard test source to ensure the accuracy of data collection; According to the layout diagram in the preliminary design plan, input the specific position information of each sensor into the central control system and assign a unique identification code to it; Initialize the intelligent monitoring system and set the basic operation parameters. The operation parameters include data collection frequency, data transmission protocol, and alarm threshold; Start the entire air purification system according to the set basic parameters; Activate the fan to maintain air flow, and gradually turn on each stage of the filtration system and the photocatalytic oxidation device; Calculate the performance index P of the computing system during the operation of the system sys , and the expression is: where, P i is the actual value of the i-th key performance indicator, P min and P max are the historical minimum and maximum values of this indicator respectively, and N represents the number of performance indicators; Real-time monitor the air quality indicators and dynamically adjust the operation parameters through the intelligent control system; When the ammonia concentration is detected exceeds the threshold value the fan speed V f and the light intensity I L are automatically increased to improve the purification efficiency. The expression is as follows: Among them, k1 and k2 are adjustment coefficients, b1 and b2 are basic offsets.

5. The air purification method for a live pig farm as described in claim 4, characterized in that: The method of regular maintenance and upgrade is used to formulate a maintenance plan according to the system operation situation and data analysis results. The specific steps are as follows: Regularly extract historical operation data from the intelligent monitoring system; The historical operation data includes air quality indicators, equipment operation status, and energy consumption information; Based on the system's performance index, evaluate the maintenance requirements of the current system and calculate the cumulative load L of the filters in the multi-stage filtration system filter , the expression is: Among them, C pollutant (t) represents the concentration of a specific pollutant at time t, and t0 and t1 are the starting and ending time points respectively; For the photocatalytic oxidation device, evaluate the attenuation degree of the light source; By comparing the light intensity at the initial installation with the current measurement value and calculating the attenuation rate D light , the expression is: Among them, I L,cur is the light intensity at the initial installation, and I L,init is the current measured value; Formulate a specific maintenance plan and implement specific maintenance measures according to the maintenance plan; The maintenance measures include replacing the pre-filter, HEPA filter, activated carbon filter, and cleaning or replacing the light source of the photocatalytic oxidation device; After each maintenance, recalibrate the sensor group to ensure the accuracy of data collection, and adjust the parameter settings of the central control system to adapt to the new operation conditions and obtain an optimized operation state after maintenance.

6. The air purification method for a live pig farm according to claim 5, characterized in that: The method of effect evaluation and feedback is used to regularly evaluate the effect of the air purification plan and obtain the evaluation results. The specific steps are as follows: According to the expected goals in the preliminary design plan, set specific air quality improvement indicators; In each evaluation period, extract the latest air quality data from the intelligent monitoring system; The air quality data includes ammonia concentration, hydrogen sulfide concentration, particulate matter concentration, fan speed, and light intensity; Based on the air quality data, calculate the Environmental Performance Index, and the expression is: Among them, C i represents the actual concentration of the i-th pollutant, and C i,goal is the target concentration, β is the adjustment factor, and N represents the number of pollutant types; According to the calculated EPI value, evaluate the effectiveness of the current air purification plan; If the EPI is close to 1, it means that the system is operating well and has achieved the expected goals; Otherwise, the reasons need to be further investigated; Compare the data in different time periods, identify the factors that cause the air quality to fail to meet the standards, and formulate targeted improvement measures; When it is found that the ammonia concentration in a certain area continuously exceeds the target value, increase the ventilation volume in this area or replace the filter with higher efficiency.

7. The air purification method for a live pig farm as described in claim 6, characterized in that: Based on the preliminary design plan, set thresholds, compare the evaluation results with the thresholds to obtain abnormal results, and optimize the system operation parameters based on the abnormal results to obtain the final purification plan. The specific steps are as follows: According to the expected goals in the preliminary design plan and relevant industry standards, set specific concentration thresholds for each key air pollutant; Using the previously calculated Environmental Performance Index (EPI) and the specific pollutant concentration data monitored in real time, compare them with the corresponding thresholds and calculate the deviation rate D i , and the expression is: Among them, C i represents the actually measured concentration, and T i is the set threshold value; According to the deviation rate D i classify all detected abnormal conditions according to their magnitudes; When it is considered that the ammonia concentration significantly exceeds the standard; When it is regarded as slightly exceeding the standard; For the identified abnormal situations, adjust the operation parameters of the system to optimize the purification effect; Organize all the adjustment measures, operation parameter settings and final effects involved in the whole process into a document as the guiding manual for future operation and maintenance work; The guiding manual includes the equipment maintenance plan, operation guide and emergency handling process.

8. A pig farm air purification system, based on the pig farm air purification method according to any one of claims 1 to 7, characterized in that: It includes: An environmental assessment module, an integration module, an initialization setting module, a monitoring module, a regular maintenance module and a feedback module; The environmental assessment module is used to install multi-type sensors at multiple representative locations in the pig farm, set a fixed-period data collection period to calculate the air quality index AQI, judge the overall air quality condition according to the AQI value, and design a customized preliminary design plan for the air purification system in combination with the terrain and building layout factors of the breeding site; The integration module is used to purchase and install the required air purification equipment and each component of the intelligent monitoring system according to the preliminary design plan, ensure the collaborative work between each component, configure the central control system to realize the functions of data collection and control command transmission, and establish a safe and reliable data transmission channel for remote monitoring. The initialization setting module is used to calibrate the sensor group to ensure the accuracy of data collection; initialize the intelligent monitoring system and set basic operation parameters, start the whole air purification system, activate the fan to maintain air flow, and gradually turn on each level of the filtration system and the photocatalytic oxidation device to ensure that the system operates according to the preset parameters; The monitoring module is used to monitor the air quality indicators in real time and dynamically adjust the operation parameters through the intelligent control system, calculate the system performance index to evaluate the system operation state, and automatically increase the purification measures when detecting that the concentration of a specific pollutant exceeds the standard to improve the purification efficiency; The regular maintenance module is used to regularly extract historical operation data from the intelligent monitoring system, evaluate the maintenance requirements of the current system, formulate specific maintenance plans and implement maintenance measures, and recalibrate the sensor group and adjust the parameter settings of the central control system after each maintenance to ensure the optimized operation state of the system; The feedback module is used to regularly evaluate the effect of the air purification plan, calculate the environmental performance index EPI based on the air quality data, identify the factors causing the air quality not to meet the standard and formulate targeted improvement measures, set thresholds and compare with the evaluation results, optimize the system operation parameters for abnormal situations, form the final purification plan, and organize it into a document as the guiding manual for future operation and maintenance work.

9. A computer device, comprising a memory and a processor, the memory storing a computer program, characterized in that: When the processor executes the computer program, it implements the steps of the air purification method for pig farms according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it implements the steps of the air purification method for a live pig farm according to any one of claims 1 to 7.

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