CN112665076A - Well-being intelligent total heat exchange fresh air purification system - Google Patents
Well-being intelligent total heat exchange fresh air purification system Download PDFInfo
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- CN112665076A CN112665076A CN202011569581.2A CN202011569581A CN112665076A CN 112665076 A CN112665076 A CN 112665076A CN 202011569581 A CN202011569581 A CN 202011569581A CN 112665076 A CN112665076 A CN 112665076A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a comfortable intelligent total heat exchange fresh air purification system which comprises a machine case shell, a total heat exchange core, a control device, a fan, a fresh air inlet, an air outlet, a return air inlet and an air supply outlet, wherein the fan comprises a fresh air fan and an air exhaust fan, and the total heat exchange core is arranged in the machine case shell.
Description
Technical Field
The invention belongs to the technical field of fresh air, and particularly relates to a comfortable intelligent total heat exchange fresh air purification system.
Background
The new fan is an effectual air purification equipment, can make the room air produce the circulation, on the one hand outdoor dirty air discharge, on the other hand, outdoor fresh air is after measures such as disinfecting, disinfection, filtration, input indoor again, let in the room all the time be fresh clean air, new fan application new trend convection technique, through independently supplying air and induced air, make the room air realize the convection current, thereby the at utmost carry out the room air replacement, the built-in multi-functional clean system of new fan guarantees to get into indoor air clean and healthy.
The patent with the application number of 2018203884671 previously applied by the applicant discloses a total heat exchanger device, which comprises a case shell, a total heat exchange core, a control device, a fresh air fan, an exhaust fan, a fresh air port, an exhaust port, a return air port and an air supply port, wherein the total heat exchange core is arranged in the case shell, the case shell is divided into four regions by a total heat exchange chip, and four exchange side surfaces of the total heat exchange chip are respectively communicated with one region; the fresh air inlet and the air outlet are arranged on one side of the case shell, and the return air inlet and the air supply outlet are arranged on the other side of the case shell; the fresh air inlet, the air outlet, the air return inlet and the air supply outlet correspond to the four areas respectively; the air exhaust fan is communicated with the air outlet, and the fresh air fan is communicated with the air supply outlet; the control device is arranged in the case shell.
It can realize when the new trend is supplied with, carries out the heat exchange through total heat exchange core to exhaust air to change the new trend temperature, but when in actual use, it can't be according to indoor air condition automatic adjustment efficiency of taking a breath.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device which can detect the indoor air quality grade in real time, change the gear of a fan according to the detected air quality grade and automatically change the ventilation times, thereby improving the indoor air quality.
In order to achieve the purpose, the invention provides the following technical scheme: a kind of well-comfortable intellectual total heat exchange new trend clean system, including chassis body, total heat exchange core, controlling device, blower, fresh air inlet, air outlet, return air inlet and supply-air outlet, the blower includes fresh air blower and air exhaust blower, the total heat exchange core is set up in chassis body, correspond to fresh air inlet, supply-air outlet and return air inlet in the said total heat exchange core and have filter screens, there are air quality checkout gears used for detecting the indoor air quality on the chassis body; the method also comprises the following control method:
s1: the fan is set with four gears through the control device, the four gears are respectively a low gear, a middle gear, a high gear and a powerful gear, and the indoor air quality is divided into four grades of excellent, good, poor and very poor through the control device;
s2: the indoor air quality is detected by the air quality detection device, the control device adjusts the gear of the fan according to the indoor air quality grade result obtained by the air quality detection device in the following way,
when the indoor air quality grade is excellent, the fan is adjusted to be a low gear;
when the indoor air quality grade is good, the fan adjusts the middle gear;
when the indoor air quality grade is poor, the fan is adjusted to be a high gear;
when the indoor air quality grade is very poor, the fan is adjusted to be a powerful gear.
Further said air quality detection means comprises a PM2.5 sensor,
when the PM2.5 detection value of the indoor air is 0-35 ug/m3The air quality grade is excellent;
when the PM2.5 detection value is 36-75 ug/m3When the air quality grade is good;
when the PM2.5 detection value is 76-150 ug/m3The air quality rating is poor;
when PM2.5 is detected to be in>150ug/m3The air quality rating is very poor.
Further the air quality detection device further comprises a CO2 sensor,
when the concentration of indoor CO2 is less than 600ppm, the air quality grade is excellent;
when the concentration of indoor CO2 is 600-999 ppm, the air quality level is good;
when the concentration of indoor CO2 is >1000ppm, the air quality rating is poor;
the PM2.5 sensor and the CO2 sensor detect indoor air simultaneously, and when the air quality grades detected by the PM2.5 sensor and the CO2 sensor are different, the result of poorer air quality is taken as the grade result of final air quality.
The air exchange frequency of the fan at a low gear is 0.3; when the fan is in a middle gear, the air exchange frequency is 0.4; when the fan is in a high gear, the air exchange frequency is 0.45; when the fan is in a strong gear, the air exchange frequency is 0.6.
Further comprising determining a PM2.5 valid value: setting a change threshold value a of PM2.5 through a control device, and when the absolute value of the difference value between the detection value of PM2.5 and the effective value of PM2.5 currently recorded by the control device is smaller than the change threshold value a, the control device determines that the effective value of PM2.5 is unchanged; when the absolute value of the difference between the detected value of the PM2.5 and the effective value of the PM2.5 currently recorded by the control device is larger than or equal to the change threshold value a, the control device updates the effective value of the PM2.5 and takes the newly obtained detected value of the PM2.5 as the effective value of the PM 2.5.
Further, the detection frequency of the PM2.5 sensor is 0.5S, the resolution of the PM2.5 sensor is 1ug/m, and the variation threshold a is 3ug/m3。
Further comprising determining an effective concentration of CO 2: setting a change threshold b of CO2 by the control device, and determining that the effective concentration of CO2 is unchanged when the absolute value of the difference between the detected concentration of CO2 and the effective concentration of CO2 currently recorded by the control device is less than the change threshold b; when the absolute value of the difference between the detected concentration of CO2 and the effective concentration of CO2 currently recorded by the control device is greater than or equal to the change threshold b, the control device updates the effective concentration of CO2 and takes the newly obtained detected concentration of CO2 as the effective concentration of CO 2.
The CO2 sensor has a detection frequency of 0.5S, the CO2 sensor has a resolution of 1ppm, and the variation threshold b is 50 ppm.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the PM2.5 sensor and the CO2 sensor are used for simultaneously detecting the indoor air quality, and the gear of the fan is automatically adjusted at any time according to the obtained air quality result, so that different ventilation times can be obtained according to the indoor air quality, the air quality is rapidly improved, and the energy saving and high efficiency are combined; meanwhile, a change threshold value a of PM2.5 and a change threshold value b of CO2 are set in the invention to avoid false operation of the fan gear caused by detection error and frequent change of the fan gear caused by continuous floating in a certain air quality threshold value range.
Drawings
FIG. 1 is a schematic structural view of a comfort intelligent total heat exchange fresh air purification system of the present invention.
Reference numerals: 1. a housing of the chassis; 2. a control device; 31. a fresh air fan; 32. an exhaust fan; 4. a fresh air port; 5. an air outlet; 6. an air supply outlet; 7. an air return opening; 8. a total heat exchange core; 91. a fresh air medium-efficiency filter screen; 92. a fresh air high-efficiency filter screen; 93. an air exhaust middle-effect filter screen.
Detailed Description
An embodiment of the comfort intelligent total heat exchange fresh air purification system of the present invention is further described with reference to fig. 1.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" or "a number" means two or more unless explicitly specified otherwise.
A kind of well-comfortable intelligent total heat exchange fresh air purification system, as shown in figure 1, including the chassis body 1, total heat exchange core 8, controlling device 2, blower, fresh air inlet 4, air exit 5, return air inlet 7 and supply-air outlet 6, the blower includes fresh air blower 31 and air exhaust blower 32, the total heat exchange core 8 is set up in chassis body 1, correspond to fresh air inlet 4, supply-air outlet 6 and return air inlet 7 in the said total heat exchange core 8 and have filter screens, there are air quality detection devices used for detecting the indoor air quality on the chassis body; in this embodiment, the filter screen of the total heat exchange core 8 corresponding to the fresh air inlet 4 is a fresh air medium-efficiency filter screen 91, the filter screen corresponding to the air supply outlet 6 is a fresh air high-efficiency filter screen 92, and the filter screen corresponding to the return air inlet 7 is an exhaust medium-efficiency filter screen 93;
the method also comprises the following control method:
s1: the fan is set with four gears through the control device 2, the four gears are respectively a low gear, a middle gear, a high gear and a powerful gear, and the indoor air quality is divided into four grades of excellent, good, poor and very poor through the control device 2;
s2: the indoor air quality is detected by the air quality detection device, the control device 2 adjusts the gear of the fan according to the indoor air quality grade result obtained by the air quality detection device in the following way,
when the indoor air quality grade is excellent, the fan is adjusted to be a low gear;
when the indoor air quality grade is good, the fan adjusts the middle gear;
when the indoor air quality grade is poor, the fan is adjusted to be a high gear;
when the indoor air quality grade is very poor, the fan is adjusted to be a powerful gear.
The preferred air quality detection means of this embodiment includes a PM2.5 sensor,
when the PM2.5 detection value of the indoor air is 0-35 ug/m3The air quality grade is excellent;
when the PM2.5 detection value is 36-75 ug/m3When the air quality grade is good;
when the PM2.5 detection value is 76-150 ug/m3The air quality rating is poor;
when PM2.5 is detected to be in>150ug/m3The air quality rating is very poor.
The preferred air quality detection device of this embodiment also includes a CO2 sensor,
when the concentration of indoor CO2 is less than 600ppm, the air quality grade is excellent;
when the concentration of indoor CO2 is 600-999 ppm, the air quality level is good;
when the concentration of indoor CO2 is >1000ppm, the air quality rating is poor;
the PM2.5 sensor and the CO2 sensor detect indoor air simultaneously, and when the air quality grades detected by the PM2.5 sensor and the CO2 sensor are different, the result of poorer air quality is taken as the grade result of final air quality.
In the embodiment, the ventilation frequency of the fan in the low gear is preferably 0.3; when the fan is in a middle gear, the air exchange frequency is 0.4; when the fan is in a high gear, the air exchange frequency is 0.45; when the fan is in a strong gear, the air exchange frequency is 0.6.
This embodiment preferably further includes determining the PM2.5 valid value: setting a change threshold value a of PM2.5 through the control device 2, and when the absolute value of the difference value between the detection value of PM2.5 and the effective value of PM2.5 currently recorded by the control device 2 is smaller than the change threshold value a, the control device 2 determines that the effective value of PM2.5 is unchanged; when the absolute value of the difference between the detected value of PM2.5 and the effective value of PM2.5 currently recorded by the control device 2 is greater than or equal to the change threshold value a, the control device 2 updates the effective value of PM2.5, and takes the newly obtained detected value of PM2.5 as the effective value of PM 2.5.
In this embodiment, the detection frequency of the PM2.5 sensor is preferably 0.5S, the resolution of the PM2.5 sensor is 1ug/m, and the variation threshold a is 3ug/m3。
If the effective value of PM2.5 currently recorded by the control device 2 is 33, the current detection value is 34 or 32 respectively, and since |34-33| <3 and |32-33| <3, the control device 2 does not update the effective values, the effective value of PM2.5 is still considered to be 33, and the current detection value is recorded again until | detection value-33 | ≧ 3, for example, when the current detection value is 36 or 30, |36-33| ≧ 3 and |30-33| ≧ 3, and the updated detection value of the control device 2 is 36 or 30 respectively.
This embodiment preferably further comprises determining the effective concentration of CO 2: setting a change threshold b of the CO2 through the control device 2, and when the absolute value of the difference between the detected concentration of the CO2 and the effective concentration of the CO2 currently recorded by the control device 2 is smaller than the change threshold b, the control device 2 determines that the effective concentration of the CO2 is unchanged; when the absolute value of the difference between the detected concentration of CO2 and the currently recorded effective concentration of CO2 by the control device 2 is greater than or equal to the change threshold b, the control device 2 updates the effective concentration of CO2, and takes the newly obtained detected concentration of CO2 as the effective concentration of CO 2.
In the preferred embodiment, the CO2 sensor has a detection frequency of 0.5S, the CO2 sensor has a resolution of 1ppm, and the variation threshold b is 50 ppm.
If the effective concentration of the CO2 currently recorded by the control device 2 is 520, and the detection concentration this time is 550, because |550 | < 520|, the control device 2 does not update the effective concentration of the CO2 until | the detection concentration-520 | ≧ 50, re-recording the currently detected concentration as the effective concentration; if the detected concentration is 600, then |600 | -520| ≧ 50, the control device 2 updates the effective concentration to 600.
In this embodiment, when the purification system is started, a value obtained by the first detection of the PM2.5 sensor is used as an effective value of the first PM 2.5; the concentration obtained by the first detection of the CO2 sensor is taken as the effective concentration of the first CO 2.
When more indoor personnel are available, the purification system is started, the CO2 sensor detects that the concentration of the CO2 is 1030ppm, the value is used as the effective concentration of CO2, and meanwhile the PM2.5 sensor detects that the current value is 70ug/m370ug/m3As an effective value of PM2.5, the control device 2 determines that the air quality result at this time is poor, and then turns on the fan to a high gear, so that the number of times of indoor air exchange reaches 0.45, and when turning on the fan, the fresh air fan 31 and the exhaust air fan 32 are turned on at the same time and the gears are the same; if the PM2.5 sensor detects that the current value is 160ug/m3Then 70ug/m3As an effective value of PM2.5, the control device 2 determines that the air quality result at this time is very poor, and turns on the fan to a strong gear, so that the number of times of indoor air exchange reaches 0.6.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. A kind of well-comfortable intellectual total heat exchange new trend clean system, including chassis body, total heat exchange core, controlling device, blower, fresh air inlet, air outlet, return air inlet and supply-air outlet, the blower includes fresh air blower and air exhaust blower, the total heat exchange core is set up in chassis body, characterized by that, there are filter screens in the said total heat exchange core corresponding to fresh air inlet, air outlet and return air inlet, there are air quality checkout gears used for detecting the indoor air quality on the chassis body; the method also comprises the following control method:
s1: the fan is set with four gears through the control device, the four gears are respectively a low gear, a middle gear, a high gear and a powerful gear, and the indoor air quality is divided into four grades of excellent, good, poor and very poor through the control device;
s2: the indoor air quality is detected by the air quality detection device, the control device adjusts the gear of the fan according to the indoor air quality grade result obtained by the air quality detection device in the following way,
when the indoor air quality grade is excellent, the fan is adjusted to be a low gear;
when the indoor air quality grade is good, the fan adjusts the middle gear;
when the indoor air quality grade is poor, the fan is adjusted to be a high gear;
when the indoor air quality grade is very poor, the fan is adjusted to be a powerful gear.
2. The comfort intelligent total heat exchange fresh air purification system according to claim 1,
the air quality detection device is characterized by comprising a PM2.5 sensor, wherein the PM2.5 detection value of indoor air is 0-35 ug/m3The air quality grade is excellent;
when the PM2.5 detection value is 36-75 ug/m3When the air quality grade is good;
when the PM2.5 detection value is 76-150 ug/m3The air quality rating is poor;
when PM2.5 is detected to be in>150ug/m3The air quality rating is very poor.
3. The comfort intelligent total heat exchange fresh air purification system according to claim 2,
characterized in that the air quality detection device also comprises a CO2 sensor,
when the concentration of indoor CO2 is less than 600ppm, the air quality grade is excellent;
when the concentration of indoor CO2 is 600-999 ppm, the air quality level is good;
when the concentration of indoor CO2 is >1000ppm, the air quality rating is poor;
the PM2.5 sensor and the CO2 sensor detect indoor air simultaneously, and when the air quality grades detected by the PM2.5 sensor and the CO2 sensor are different, the result of poorer air quality is taken as the grade result of final air quality.
4. A comfort intelligent total heat exchange fresh air purification system according to claim 3, wherein the number of air changes of the fan at a low gear is 0.3; when the fan is in a middle gear, the air exchange frequency is 0.4; when the fan is in a high gear, the air exchange frequency is 0.45; when the fan is in a strong gear, the air exchange frequency is 0.6.
5. A comfort intelligent total heat exchange fresh air purification system according to claim 4, further comprising determining a PM2.5 effective value: setting a change threshold value a of PM2.5 through a control device, and when the absolute value of the difference value between the detection value of PM2.5 and the effective value of PM2.5 currently recorded by the control device is smaller than the change threshold value a, the control device determines that the effective value of PM2.5 is unchanged; when the absolute value of the difference between the detected value of the PM2.5 and the effective value of the PM2.5 currently recorded by the control device is larger than or equal to the change threshold value a, the control device updates the effective value of the PM2.5 and takes the newly obtained detected value of the PM2.5 as the effective value of the PM 2.5.
6. A comfort intelligent total heat exchange fresh air purification system according to claim 5, wherein the detection frequency of the PM2.5 sensor is once per 0.5S, the resolution of the PM2.5 sensor is 1ug/m, and the variation threshold a is 3ug/m3。
7. The comfort intelligent total heat exchange fresh air purification system according to claim 6, further comprising determining an effective concentration of CO 2: setting a change threshold b of CO2 by the control device, and determining that the effective concentration of CO2 is unchanged when the absolute value of the difference between the detected concentration of CO2 and the effective concentration of CO2 currently recorded by the control device is less than the change threshold b; when the absolute value of the difference between the detected concentration of CO2 and the effective concentration of CO2 currently recorded by the control device is greater than or equal to the change threshold b, the control device updates the effective concentration of CO2 and takes the newly obtained detected concentration of CO2 as the effective concentration of CO 2.
8. The comfort intelligent total heat exchange fresh air purification system according to claim 7, wherein the CO2 sensor has a detection frequency of 0.5S once, the CO2 sensor has a resolution of 1ppm, and the variation threshold b is 50 ppm.
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