阅读说明：本技术 一种双净化模式新风智能控制系统及方法 (Dual-purification-mode fresh air intelligent control system and method ) 是由 岳仁亮 齐丛亮 尤胜胜 李玉 于 2019-12-04 设计创作，主要内容包括：本发明公开一种双净化模式新风智能控制系统,包括包括依次连接的传感器模块、数据采集组件、中央处理器、动作执行模块和工作模块；其中动作执行组件包括双净化模式,新风净化模式、内循环净化模式和节能待机模式；所述工作模块包括风机、风阀和净化器件；其中所述传感器模块包括第一控制因子传感器、第二控制因子传感器、湿度传感器和温度传感器。所述第一控制因子传感器为CO2浓度传感器、第二控制因子传感器包括PM2.5传感器。本发明可根据地区差异,设置控制因子限值,实现差异化净化效果双净化模式,更节能、降低运行成本；室内外温差大,满足控制因子限值条件下,优先智能切换内循环模式,减少室内温度流失。(The invention discloses a double-purification-mode fresh air intelligent control system which comprises a sensor module, a data acquisition assembly, a central processing unit, an action execution module and a working module which are sequentially connected; the action execution component comprises a double-purification mode, a fresh air purification mode, an internal circulation purification mode and an energy-saving standby mode; the working module comprises a fan, an air valve and a purifying device; wherein the sensor module includes a first control factor sensor, a second control factor sensor, a humidity sensor, and a temperature sensor. The first control factor sensor is a CO2 concentration sensor, and the second control factor sensor comprises a PM2.5 sensor. According to the invention, the control factor limit value can be set according to the regional difference, so that the dual-purification mode with the differentiated purification effect is realized, the energy is saved, and the operation cost is reduced; the indoor and outdoor temperature difference is large, the internal circulation mode is preferentially and intelligently switched under the condition that the control factor limit value is met, and the indoor temperature loss is reduced.)

1. A double-purification-mode fresh air intelligent control system is characterized by comprising a sensor module, a data acquisition assembly, a central processing unit, an action execution module and a working module which are sequentially connected; the action execution component comprises a double-purification mode, a fresh air purification mode, an internal circulation purification mode and an energy-saving standby mode; the working module comprises a fan, an air valve and a purifying device; wherein the sensor module includes a first control factor sensor, a second control factor sensor, a humidity sensor, and a temperature sensor.

2. The intelligent control system of fresh air in double purification modes as claimed in claim 1, wherein: the first control factor sensor is a CO2 concentration sensor, and the second control factor sensor comprises a PM2.5 sensor.

3. The intelligent control system of fresh air in double purification modes as claimed in claim 1, wherein: the purifying device comprises a filtering mildew-proof module, and the filtering module comprises an activated carbon composite filtering layer and an antibacterial mildew-proof material protection filtering layer.

4. A double-module fresh air intelligent control method is characterized by comprising the following steps of 1: collecting data through a data acquisition assembly according to numerical values of each CO2 concentration sensor, each PM2.5 sensor, each humidity sensor and each temperature sensor of the sensor module; then the data acquisition component sends the numerical values to a central processing unit for analysis;

step 2: the central processing unit sends an instruction to the action execution module to determine an operation mode according to data analysis;

and step 3: the working module works, and the fan, the air valve and the purifying device are used for purifying air.

5. The intelligent control method for the double-module fresh air as claimed in claim 4, wherein: in the step 1: a CO2 concentration sensor and a PM2.5 sensor are provided with pollution thresholds; wherein, the CO2 concentration sensor and the PM2.5 are both higher than the set pollution threshold value, then the double purification mode is started, and the CO2 concentration sensor is higher than the set pollution threshold value, then the fresh air purification mode is started; PM2.5 is higher than a set pollution threshold value, and an internal circulation purification mode is started; the energy saving standby mode is activated when both the CO2 concentration sensor and PM2.5 reach safe values.

6. The intelligent control method for the double-module fresh air as claimed in claim 4, wherein: the fresh air purification mode is that the outdoor air inlet filters outdoor fresh air through the fan, the air valve and the purification device and then sends the filtered fresh air into the room through the indoor air inlet; the indoor air return port filters indoor air by using a fan, an air valve and a purifying device and then discharges the filtered indoor air through an outdoor air outlet; the internal circulation purification mode is that indoor air is filtered by a fan, an air valve and a purification device through an indoor air return inlet and then is conveyed through an indoor air inlet.

Technical Field

The invention belongs to the technical field of air purification, and particularly relates to a double-purification-mode fresh air intelligent control system and method.

Background

In recent years, the problem of air pollution is increasingly remarkable, the requirement of people on the indoor air environment quality is improved, and the development of a fresh air system is rapid. The energy consumption of present new trend intelligence control system is big, and the running cost is high, can not satisfy various environment simultaneously, and the filter screen loss is serious, increases the cost of later maintenance.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a dual-purification mode fresh air intelligent control system and method aiming at the defects in the prior art, and control factor limit values can be set according to regional differences to realize differential purification effects.

The technical scheme is as follows: in order to achieve the purpose, the invention provides a double-purification-mode fresh air intelligent control system which comprises a sensor module, a data acquisition assembly, a central processing unit, an action execution module and a working module which are sequentially connected; the action execution component comprises a double-purification mode, a fresh air purification mode, an internal circulation purification mode and an energy-saving standby mode; the working module comprises a fan, an air valve and a purifying device; wherein the sensor module includes a first control factor sensor, a second control factor sensor, a humidity sensor, and a temperature sensor.

The invention is further improved in that: the first control factor sensor is a CO2 concentration sensor, and the second control factor sensor comprises a PM2.5 sensor.

The invention is further improved in that: the purifying device comprises a filtering mildew-proof module, and the filtering module comprises an activated carbon composite filtering layer and an antibacterial mildew-proof material protection filtering layer.

The invention is further improved in that: the method comprises the following steps of 1: collecting data through a data acquisition assembly according to numerical values of each CO2 concentration sensor, each PM2.5 sensor, each humidity sensor and each temperature sensor of the sensor module; then the data acquisition component sends the numerical values to a central processing unit for analysis;

step 2: the central processing unit sends an instruction to the action execution module to determine an operation mode according to data analysis;

and step 3: the working module works by utilizing the fan. The air valve and the purifying device purify the air.

The invention is further improved in that: in the step 1: a CO2 concentration sensor and a PM2.5 sensor are provided with pollution thresholds; wherein, the CO2 concentration sensor and the PM2.5 are both higher than the set pollution threshold value, then the double purification mode is started, and the CO2 concentration sensor is higher than the set pollution threshold value, then the fresh air purification mode is started; PM2.5 is higher than a set pollution threshold value, and an internal circulation purification mode is started; the energy saving standby mode is activated when both the CO2 concentration sensor and PM2.5 reach safe values.

The invention is further improved in that: the fresh air purification mode is that the outdoor air inlet filters outdoor fresh air through the fan, the air valve and the purification device and then sends the filtered fresh air into the room through the indoor air inlet; the indoor air return port filters indoor air by using a fan, an air valve and a purifying device and then discharges the filtered indoor air through an outdoor air outlet; the internal circulation purification mode is that indoor air is filtered by a fan, an air valve and a purification device through an indoor air return inlet and then is conveyed through an indoor air inlet.

The invention has the beneficial effects that: 1. can set control factor limit values according to regional differences to realize differential purification effect

2. The double purification modes are more energy-saving and reduce the operation cost; the indoor and outdoor temperature difference is large, and the intelligent switching of the internal circulation mode is preferred under the condition that the control factor limit value is met, so that the indoor temperature loss is reduced;

3. the outdoor haze is serious, and the intelligent switching of the internal circulation mode is prioritized under the condition that the control factor limit value is met, so that the filter screen loss is reduced;

4. the temperature sensor, the humidity sensor, the first control factor sensor and the second control factor sensor transmit the sensed air quality to the central processing unit; and when the concentration of the pollutants in the air exceeds a set pollution threshold value, the fresh air running mode is controlled to be started.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an operation logic diagram of embodiment 1.

Fig. 3 is an operation logic diagram of embodiment 2.

Fig. 4 is an operation logic diagram of embodiment 3.

Fig. 5, schematic view of fresh air purification mode.

FIG. 6 is a schematic view of an internal circulation purge mode.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1, 5 and 6: a double-purification-mode fresh air intelligent control system comprises a sensor module, a data acquisition assembly, a central processing unit, an action execution module and a working module which are sequentially connected; the action execution component comprises a double-purification mode, a fresh air purification mode, an internal circulation purification mode and an energy-saving standby mode; the working module comprises a fan, an air valve and a purifying device; wherein the sensor module comprises a first control factor sensor, a second control factor sensor, a humidity sensor, and a temperature sensor; the first control factor sensor is a CO2 concentration sensor, and the second control factor sensor comprises a PM2.5 sensor.

The purifying device comprises a filtering mildew-proof module, and the filtering module comprises an activated carbon composite filtering layer and an antibacterial mildew-proof material protection filtering layer; can sterilize and prevent mildew.

The implementation of the intelligent control method for the dual-module fresh air comprises the following steps:

step 1: collecting data through a data acquisition assembly according to numerical values of each CO2 concentration sensor, each PM2.5 sensor, each humidity sensor and each temperature sensor of the sensor module; then the data acquisition component sends the numerical values to a central processing unit for analysis;

step 2: the central processing unit sends an instruction to the action execution module to determine an operation mode according to data analysis;

and step 3: the working module works by utilizing the fan. The air valve and the purifying device purify the air.

In the step 1: a CO2 concentration sensor and a PM2.5 sensor are provided with pollution thresholds; wherein, the CO2 concentration sensor and the PM2.5 are both higher than the set pollution threshold value, then the double purification mode is started, and the CO2 concentration sensor is higher than the set pollution threshold value, then the fresh air purification mode is started; PM2.5 is higher than a set pollution threshold value, and an internal circulation purification mode is started; the energy saving standby mode is activated when both the CO2 concentration sensor and PM2.5 reach safe values.

6. The intelligent control method for the double-module fresh air as claimed in claim 4, wherein: the fresh air purification mode is that the outdoor air inlet filters outdoor fresh air through the fan, the air valve and the purification device and then sends the filtered fresh air into the room through the indoor air inlet; the indoor air return port filters indoor air by using a fan, an air valve and a purifying device and then discharges the filtered indoor air through an outdoor air outlet; the internal circulation purification mode is that indoor air is filtered by a fan, an air valve and a purification device through an indoor air return inlet and then is conveyed through an indoor air inlet.

As shown in fig. 2: a logic diagram of a primary air quality control logic, wherein the threshold value of a CO2 concentration sensor is 600ppm and PM2.5wei35; in order to optimize the random jump of the low, medium and high-grade fresh air running at the critical value in the fresh air purification mode; wherein when CO2 is greater than 1600, the gear is upshifted; shifting the middle gear when the CO2 is larger than 1100, and shifting the middle gear when the CO2 is smaller than 700; when PM2.5 is larger than 75, upshifting, and when PM2.5 is smaller than 50, then upshifting; when PM2.5 is larger than 35, shifting the middle gear, and when PM2.5 is smaller than 20, shifting the middle gear again;

when the internal circulation mode is adopted: PM 2.5: 15-35 resisting internal circulation operation; 35-75 middle-gear internal circulation operation; and when the temperature is more than or equal to 75 ℃, the high-grade internal circulation operation is carried out.

As shown in fig. 3: secondary air quality control logic; logic for a CO2 concentration sensor threshold of 800ppm with a PM2.5 of 75;

in order to optimize the random jump of the low, medium and high-grade fresh air running at the critical value in the fresh air purification mode; wherein when CO2 is greater than 1800, upshifting; shifting the middle gear when the speed is less than 1400, shifting the middle gear when the CO2 is more than 1300, and shifting the gear when the speed is less than 900; when PM2.5 is larger than 150, upshifting, and when PM2.5 is smaller than 120, then upshifting; when PM2.5 is larger than 50, shifting the middle gear, and when PM2.5 is smaller than 35, shifting the middle gear again;

when the internal circulation mode is adopted: PM 2.5: 15-35 resisting internal circulation operation; 35-150 middle-gear internal circulation operation; and when the temperature is more than 150 ℃, the high-grade internal circulation operation is carried out.

As shown in fig. 4: control logic for a person-intensive location such as a classroom; a logic diagram of a CO2 concentration sensor with a threshold of 1000ppm and a PM2.5 of 50;

in order to optimize the random jump of the low, medium and high-grade fresh air running at the critical value in the fresh air purification mode; wherein when CO2 is greater than 2000, the gear is upshifted; shifting the middle gear when the speed is less than 1600, shifting the middle gear when the CO2 is more than 1500, and shifting the gear when the speed is less than 1100; when PM2.5 is larger than 100, upshifting, and when PM2.5 is smaller than 75, then upshifting; when PM2.5 is larger than 50, shifting the middle gear, and when PM2.5 is smaller than 35, shifting the middle gear again;

when the internal circulation mode is adopted: PM 2.5: 15-35 resisting internal circulation operation; 50-100 middle-gear internal circulation operation; and when the temperature is more than 100 ℃, the high-grade internal circulation runs.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.