CN110617568A - Fresh air purification method - Google Patents
Fresh air purification method Download PDFInfo
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- CN110617568A CN110617568A CN201810628040.9A CN201810628040A CN110617568A CN 110617568 A CN110617568 A CN 110617568A CN 201810628040 A CN201810628040 A CN 201810628040A CN 110617568 A CN110617568 A CN 110617568A
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- air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Abstract
The invention relates to a fresh air purification method. The fresh air purification method comprises the following steps: s1, arranging a purification device, wherein the purification device comprises a cylindrical barrel, a flow channel reversing assembly, a pretreatment assembly, a straight-through pipeline, a dehydration rotary vane, a purification assembly, a plurality of temperature sensors and a processor; s2, measuring an air inlet temperature A, an air outlet temperature B and a pretreatment air duct outlet temperature C at the air inlet, and setting an air inlet reference temperature M and an air outlet reference temperature N; s3, comparing the air inlet temperature A with the air inlet reference temperature M, and selecting a corresponding flow channel; s4, controlling the motor to operate by the processor; and S5, comparing the outlet temperature C of the preprocessing air duct with the outlet reference temperature N. The fresh air purification method judges the temperature of outdoor fresh air, compares the temperature according to a set value, and then realizes flow channel switching and air outlet temperature control.
Description
Technical Field
The invention relates to an air purification method, in particular to a fresh air purification method.
Background
With the development of industrialization and modernization, the industry is more and more flourishing, the pollution problem is more and more prominent, especially the concern of the air quality of modern people, and people all realize that the improvement of the air quality is imminent. Accompanying the air purification and filtration apparatus, which burst out like a bamboo shoot in spring after rain, various purification devices and purification apparatuses have been also developed in large numbers. The existing air purification device is arranged indoors, and improves the air quality by circulating the indoor air and filtering the indoor air in the purification device; the existing fresh air machine is generally used for filtering outdoor air and then sending the filtered outdoor air into a room, and both the existing fresh air machine and the existing fresh air machine have a filtering function. However, these devices or apparatuses cannot cool outdoor air, and have no pretreatment structure, and can only cool fresh air by means of compressor refrigeration, or compress air to cool air and remove dust and impurities; no matter what kind of mode is adopted, either the effect of dust removal edulcoration is not good, or the energy consumption is high, or the air after through the refrigeration is too dry.
The traditional fresh air purification only filters outdoor air entering a room and removes particulate matters, and the technology cannot adjust the temperature of the air entering the room, so that the burden of an indoor air conditioner is increased; and current new trend purifier removes dust through multi-stage filtration usually, does not have the technology of a preliminary treatment, has increased purifier's burden.
Disclosure of Invention
Based on the above, the invention aims to provide a fresh air purification method which has the advantages of fully purifying fresh air and saving energy.
The invention relates to a fresh air purification method, which comprises the following steps:
s1, arranging a purification device, wherein the purification device comprises a cylindrical barrel, a flow channel reversing component, a pretreatment component, a straight-through pipeline, a dehydration rotary vane, a purification component, a plurality of temperature sensors and a processor, and the flow channel reversing component, the pretreatment component, the dehydration rotary vane and the purification component are sequentially arranged in the cylindrical barrel; the pretreatment assembly forms a pretreatment air channel, the straight-through pipeline forms a straight ventilation channel, the pretreatment air channel is connected with the straight ventilation channel in parallel, and the flow channel reversing assembly is used for switching the pretreatment air channel and the straight ventilation channel; an air inlet and an air outlet are respectively formed in two ends of the cylindrical barrel, the air inlet and the air outlet of the cylindrical barrel and the outlet of the pretreatment air channel are respectively provided with the temperature sensor, and the temperature sensors are electrically connected with the processor; the processor controls the flow channel switching of the flow channel reversing assembly;
the motor drives the dehydration rotary vane to rotate and is electrically connected with the processor;
s2, measuring an air inlet temperature A, an air outlet temperature B and a pretreatment air duct outlet temperature C, and setting an air inlet reference temperature M and an air outlet reference temperature N, wherein the air inlet reference temperature M is greater than the air outlet reference temperature N;
s3, comparing the air inlet temperature A with the air inlet reference temperature M by the processor, if the air inlet temperature A is higher than the air inlet reference temperature M, controlling the flow channel reversing assembly to switch the flow channel by the processor, opening the pre-treatment air channel and closing the straight air channel; if the temperature A of the air inlet is less than or equal to the air inlet reference temperature M, the pretreatment air channel is closed, and the direct air channel is opened;
s4, controlling the motor to operate by the processor;
s5, comparing the outlet temperature C of the pretreatment air channel with the outlet reference temperature N by the processor, and controlling the opening of the pretreatment assembly to be increased by the processor if the outlet temperature C of the pretreatment air channel is greater than the outlet reference temperature N; if the outlet temperature C of the pretreatment air channel is less than the outlet air reference temperature N, the processor controls the pretreatment assembly to reduce the opening; and if the outlet temperature C of the pretreatment air channel is equal to the outlet reference temperature N, keeping the current opening.
According to the fresh air purification method, the temperature of the outdoor fresh air is judged, then comparison is carried out according to the set value, when the temperature of the fresh air is high, the pretreatment air channel is selected, the temperature of the fresh air can be well reduced, the fresh air can be simply subjected to dust removal while the temperature is reduced, and the subsequent dust removal load is reduced. When the temperature of the fresh air is low, the straight ventilation channel is selected, so that the temperature is well judged and corresponding selection is carried out, and energy is saved.
Furthermore, the pretreatment assembly comprises a plurality of sieve plates arranged in parallel and partition plates connected to two sides of the sieve plates, the cylindrical barrel and the partition plates on two sides form a pretreatment cavity, the top of the pretreatment cavity is connected with a water inlet pipe, the bottom of the pretreatment cavity is connected with a water outlet pipe, and water enters through the water inlet pipe, flows through the sieve plates and then flows out of the water outlet pipe;
through holes are formed in the partition plates on the two sides, and the through holes close to one side of the flow channel reversing assembly are located in the stroke coverage range of the flow channel reversing assembly. Through the countercurrent exchange of water and fresh air, the temperature of the fresh air is reduced, and a plurality of particles in the fresh air are removed during countercurrent contact, so that a better pretreatment effect is achieved, the subsequent treatment burden is reduced, and the energy-saving and environment-friendly effects are achieved.
Furthermore, a control valve is arranged on the water inlet pipe, and the processor controls the control valve to adjust the water inflow.
Further, the opening degree of the pretreatment component is adjusted by adjusting the opening degree of the control valve.
Further, the motor is a variable frequency motor.
And further, comparing the outlet temperature C of the pretreatment air channel with the outlet reference temperature N, when the outlet temperature C of the pretreatment air channel is greater than the outlet reference temperature N and the opening degree of the control valve of the water inlet pipe is fully opened, reducing the rotating speed of the variable frequency motor, and keeping the control valve fully opened until the outlet temperature C of the pretreatment air channel is equal to the outlet reference temperature N, and maintaining the rotating speed of the variable frequency motor. When the opening degree of the control valve is fully opened and the outlet temperature C of the pretreatment air channel is greater than the outlet reference temperature N, the rotating speed of the variable frequency fan needs to be reduced to reduce the load of the purification device, so that the outlet temperature is reduced.
Further, still include the dense net of filtration, this filter dense net sets up and is located in the barrel between dehydration rotary vane and the purification subassembly.
Further, the purification assembly includes a plurality of purification layers. The multi-layer purification layer can purify various components in the fresh air well, so that the air is cleaned.
Furthermore, the water inlet pipe is communicated with the water outlet pipe through a circulating pump. Through circulating pump intercommunication inlet tube and outlet pipe, can improve the utilization ratio of water.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic perspective view of a purification apparatus according to the present invention;
FIG. 2 is a schematic partial cross-sectional view of a purification apparatus of the present invention;
fig. 3 is a schematic internal perspective view of the purification apparatus of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The invention relates to a fresh air purification method, which comprises the following steps:
s1, arranging a purification device, as shown in fig. 1 and fig. 2, the purification device comprises a cylindrical barrel 10, a flow path reversing component 20, a pretreatment component 30, a straight-through pipeline 40, a dewatering rotary vane 50, a purification component 60, a plurality of temperature sensors (not shown in the figure) and a processor (not shown in the figure), wherein the flow path reversing component 20, the pretreatment component 30, the dewatering rotary vane 50 and the purification component 60 are arranged in the cylindrical barrel 10 in sequence; the pretreatment component 30 forms a pretreatment air channel, the straight-through pipeline 40 forms a straight ventilation channel, the pretreatment air channel is connected with the straight ventilation channel in parallel, and the flow channel reversing component 20 is used for switching the pretreatment air channel and the straight ventilation channel; an air inlet and an air outlet are respectively formed in two ends of the cylindrical barrel 10, the air inlet and the air outlet of the cylindrical barrel 10 and the outlet of the pretreatment air channel are respectively provided with the temperature sensor, and the temperature sensors are electrically connected with the processor; the processor controls the flow switching of the flow reversing assembly 20.
A motor (not shown) which drives the dewatering rotary vane 50 to rotate and is electrically connected with the processor; the dehydration rotary vane 50 is reversely rotated and forms an exhaust fan with the cylindrical barrel 10; a control valve (not shown) is arranged on the water inlet pipe 33, and the processor controls the control valve to adjust the water inflow. In this embodiment the motor is a variable frequency motor.
The pretreatment assembly 30 comprises a plurality of sieve plates 31 arranged in parallel and partition plates 32 connected to two sides of the sieve plates 31, the cylindrical barrel 10 and the partition plates 32 on two sides enclose a pretreatment cavity, the top of the pretreatment cavity is connected with a water inlet pipe 33, the bottom of the pretreatment cavity is connected with a water outlet pipe 34, and water enters through the water inlet pipe 33 and flows through the sieve plates 31 and then flows out of the water outlet pipe 34;
through holes are formed in the partition plates 32 on the two sides, and the through hole close to one side of the flow channel reversing assembly 20 is located in the stroke coverage range of the flow channel reversing assembly 20. Through the countercurrent exchange of water and fresh air, the temperature of the fresh air is reduced, and a plurality of particles in the fresh air are removed during countercurrent contact, so that a better pretreatment effect is achieved, the subsequent treatment burden is reduced, and the energy-saving and environment-friendly effects are achieved.
As shown in fig. 3, the device further comprises a dense filter screen 70, and the dense filter screen 70 is arranged in the cylinder body and positioned between the dewatering rotary vane 50 and the purifying component 60.
The purification assembly 60 includes multiple purification layers. The multi-layer purification layer can purify various components in the fresh air well, so that the air is cleaned.
The water inlet pipe 33 is communicated with the water outlet pipe 34 through a circulating pump. The water inlet pipe 33 and the water outlet pipe 34 are communicated through the circulating pump, so that the utilization rate of water can be improved.
S2, measuring an air inlet temperature A, an air outlet temperature B and a pretreatment air duct outlet temperature C, and setting an air inlet reference temperature M and an air outlet reference temperature N, wherein the air inlet reference temperature M is greater than the air outlet reference temperature N;
s3, comparing the air inlet temperature A with the air inlet reference temperature M by the processor, if the air inlet temperature A is higher than the air inlet reference temperature M, controlling the flow channel reversing assembly 20 by the processor to switch the flow channel, opening the pre-treatment air channel and closing the straight air channel; if the temperature A of the air inlet is less than or equal to the air inlet reference temperature M, the pretreatment air channel is closed, and the direct air channel is opened;
s4, controlling the motor to operate by the processor;
s5, comparing the outlet temperature C of the pretreatment air channel with the outlet reference temperature N by the processor, and controlling the control valve to increase the opening degree by the processor if the outlet temperature C of the pretreatment air channel is greater than the outlet reference temperature N; if the outlet temperature C of the pretreatment air channel is lower than the outlet air reference temperature N, the processor controls the control valve to reduce the opening; and if the outlet temperature C of the pretreatment air channel is equal to the outlet reference temperature N, the control valve keeps the current opening.
After the step S5, comparing the outlet temperature C of the pre-processing air duct with the outlet reference temperature N, and when the outlet temperature C of the pre-processing air duct is greater than the outlet reference temperature N and the opening of the control valve of the water inlet pipe 33 is fully opened, reducing the rotation speed of the variable frequency motor, and keeping the control valve fully opened until the outlet temperature C of the pre-processing air duct is equal to the outlet reference temperature N, maintaining the rotation speed of the variable frequency motor. When the opening degree of the control valve is fully opened and the outlet temperature C of the pretreatment air channel is greater than the outlet reference temperature N, the rotating speed of the variable frequency fan needs to be reduced to reduce the load of the purification device, so that the outlet temperature is reduced.
The working principle of the invention is as follows:
and (6) checking. The device is operated, air circulates from the straight-through pipeline 40, an air inlet temperature A and an air outlet temperature B are detected, the air outlet temperature B is used for correcting the value of the air inlet temperature A, and after the air flows through the straight-through pipeline 40, the air cannot be heated and does not exchange heat. Theoretically, air enters from the air inlet of the cylindrical barrel 10, flows through the straight-through pipe 40 and the purification assembly 60, and finally flows out from the air outlet, and almost no heat exchange exists in the whole process, so that the temperature A of the air inlet is equal to the temperature B of the air outlet theoretically. If the outlet temperature B is significantly greater than the inlet temperature A, then the purifier needs to be inspected and troubleshot to find the heat exchange points. For example, if the flow path reversing assembly 20 is not tightly sealed, air will not only flow through the straight-through duct 40 but also flow through the pre-treatment air path, and the sealing performance of the flow path reversing assembly 20 is required. For another example, the temperature of the air is also affected by the moisture remaining in the purification device, and the purification device is required to be dried, and during the drying process, hot air can be introduced from the air inlet to heat the purification device, and then the hot air is discharged from the air outlet.
In normal operation, air is circulated through the pre-treatment duct and the straight-through duct 40 is blocked. At this time, the temperature A of the air inlet and the temperature C of the outlet of the pretreatment air channel are measured, the running state of the purification device is judged according to the set air inlet reference temperature M and the set air outlet reference temperature N, and corresponding operations in S2-S5 in the purification method are selected, so that the temperature of the air outlet is ensured to be within a normal range.
The fresh air purification method has the advantages of good purification effect, reduction of the treatment load of the indoor air conditioner and the purification load of the purification device, energy conservation and environmental protection, and can recycle the water for cooling and purification and save resources.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. A fresh air purification method is characterized by comprising the following steps:
s1, arranging a purification device, wherein the purification device comprises a cylindrical barrel, a flow channel reversing component, a pretreatment component, a straight-through pipeline, a dehydration rotary vane, a purification component, a plurality of temperature sensors and a processor, and the flow channel reversing component, the pretreatment component, the dehydration rotary vane and the purification component are sequentially arranged in the cylindrical barrel; the pretreatment assembly forms a pretreatment air channel, the straight-through pipeline forms a straight ventilation channel, the pretreatment air channel is connected with the straight ventilation channel in parallel, and the flow channel reversing assembly is used for switching the pretreatment air channel and the straight ventilation channel; an air inlet and an air outlet are respectively formed in two ends of the cylindrical barrel, the air inlet and the air outlet of the cylindrical barrel and the outlet of the pretreatment air channel are respectively provided with the temperature sensor, and the temperature sensors are electrically connected with the processor; the processor controls the flow channel switching of the flow channel reversing assembly;
the motor drives the dehydration rotary vane to rotate and is electrically connected with the processor;
s2, measuring an air inlet temperature A, an air outlet temperature B and a pretreatment air duct outlet temperature C through a plurality of temperature sensors, and setting an air inlet reference temperature M and an air outlet reference temperature N, wherein the air inlet reference temperature M is greater than the air outlet reference temperature N;
s3, comparing the air inlet temperature A with the air inlet reference temperature M by the processor, if the air inlet temperature A is higher than the air inlet reference temperature M, controlling the flow channel reversing assembly to switch the flow channel by the processor, opening the pre-treatment air channel and closing the straight air channel; if the temperature A of the air inlet is less than or equal to the air inlet reference temperature M, the pretreatment air channel is closed, and the direct air channel is opened;
s4, controlling the motor to operate by the processor;
s5, comparing the outlet temperature C of the pretreatment air channel with the outlet reference temperature N by the processor, and controlling the opening of the pretreatment assembly to be increased by the processor if the outlet temperature C of the pretreatment air channel is greater than the outlet reference temperature N; if the outlet temperature C of the pretreatment air channel is less than the outlet air reference temperature N, the processor controls the pretreatment assembly to reduce the opening; and if the outlet temperature C of the pretreatment air channel is equal to the outlet reference temperature N, keeping the current opening.
2. The fresh air purification method according to claim 1, wherein: the pretreatment assembly comprises a plurality of sieve plates which are arranged in parallel and partition plates connected to two sides of the sieve plates, the cylindrical barrel and the partition plates on two sides form a pretreatment cavity in a surrounding mode, the top of the pretreatment cavity is connected with a water inlet pipe, the bottom of the pretreatment cavity is connected with a water outlet pipe, and water enters through the water inlet pipe, flows through the sieve plates and then flows out of the water outlet pipe;
through holes are formed in the partition plates on the two sides, and the through holes close to one side of the flow channel reversing assembly are located in the stroke coverage range of the flow channel reversing assembly.
3. The fresh air purification method according to claim 2, wherein: the water inlet pipe is provided with a control valve, and the processor controls the control valve to adjust the water inflow.
4. The fresh air purification method according to claim 3, wherein: and the opening of the pretreatment assembly is adjusted by adjusting the opening of the control valve.
5. The fresh air purification method according to claim 4, wherein: the motor is a variable frequency motor.
6. The fresh air purification method according to claim 5, wherein: and comparing the outlet temperature C of the pretreatment air channel with the outlet reference temperature N, reducing the rotating speed of the variable frequency motor when the outlet temperature C of the pretreatment air channel is greater than the outlet reference temperature N and the opening degree of the control valve of the water inlet pipe is fully opened, and keeping the control valve fully opened until the outlet temperature C of the pretreatment air channel is equal to the outlet reference temperature N, and maintaining the rotating speed of the variable frequency motor.
7. The fresh air purification method according to claim 6, wherein: the filter screen is arranged in the cylinder and positioned between the dehydration rotary vane and the purification component.
8. The fresh air purification method according to claim 6, wherein: the purification assembly includes a plurality of purification layers.
9. The fresh air purification method according to claim 6, wherein: the water inlet pipe is communicated with the water outlet pipe through a circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628040.9A CN110617568A (en) | 2018-06-19 | 2018-06-19 | Fresh air purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628040.9A CN110617568A (en) | 2018-06-19 | 2018-06-19 | Fresh air purification method |
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| Publication Number | Publication Date |
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| CN110617568A true CN110617568A (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810628040.9A Pending CN110617568A (en) | 2018-06-19 | 2018-06-19 | Fresh air purification method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03195835A (en) * | 1989-12-25 | 1991-08-27 | Matsushita Electric Works Ltd | Air conditioner |
| CN201488149U (en) * | 2009-05-15 | 2010-05-26 | 何森 | Humidifying and dehumidifying machine with constant outlet air temperature |
| CN102778009A (en) * | 2012-07-11 | 2012-11-14 | 武汉裕生智能节能设备有限公司 | Temperature-humidity control device and method for variable-air-volume air-conditioning system |
| CN108072104A (en) * | 2017-07-31 | 2018-05-25 | 宁波方太厨具有限公司 | A kind of fresh air purification device |
-
2018
- 2018-06-19 CN CN201810628040.9A patent/CN110617568A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03195835A (en) * | 1989-12-25 | 1991-08-27 | Matsushita Electric Works Ltd | Air conditioner |
| CN201488149U (en) * | 2009-05-15 | 2010-05-26 | 何森 | Humidifying and dehumidifying machine with constant outlet air temperature |
| CN102778009A (en) * | 2012-07-11 | 2012-11-14 | 武汉裕生智能节能设备有限公司 | Temperature-humidity control device and method for variable-air-volume air-conditioning system |
| CN108072104A (en) * | 2017-07-31 | 2018-05-25 | 宁波方太厨具有限公司 | A kind of fresh air purification device |
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Application publication date: 20191227 |
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