CN113864916A - Cooling fan and rotary liquid distribution control method - Google Patents
Cooling fan and rotary liquid distribution control method Download PDFInfo
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- CN113864916A CN113864916A CN202111024081.5A CN202111024081A CN113864916A CN 113864916 A CN113864916 A CN 113864916A CN 202111024081 A CN202111024081 A CN 202111024081A CN 113864916 A CN113864916 A CN 113864916A
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- 239000007788 liquid Substances 0.000 title claims abstract description 98
- 238000001816 cooling Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 172
- 238000001704 evaporation Methods 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000003068 static effect Effects 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005057 refrigeration Methods 0.000 abstract description 9
- 239000004744 fabric Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 241000561734 Celosia cristata Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The invention discloses a cooling fan and a rotary liquid distribution control method. The cooling fan comprises a rotatable wet curtain and a liquid distribution groove, the wet curtain can be immersed into the liquid level in the liquid distribution groove in the rotating process, and water flows on the surface of the wet curtain to form an even water film. The rotating liquid distribution control method makes the wet curtain rotate intermittently to distribute water. According to the cooling fan and the rotary liquid distribution control method, a uniform water film is formed on the wet curtain in a liquid distribution mode of intermittent rotation of the wet curtain, and the evaporation refrigeration effect is improved.
Description
Technical Field
The invention belongs to the field of evaporative refrigeration, and particularly relates to a cooling fan and a rotary liquid distribution control method.
Background
The evaporative cooling fan is also called an air conditioning fan and a cold air fan, is a refrigerating device which works by depending on the liquid phase water evaporation heat absorption principle at normal temperature and normal pressure, has smaller occupied area and higher cost performance, and is popular with consumers. The evaporative cooling fan mainly realizes the evaporation and heat absorption of water by depending on a wet curtain and a liquid distributor component, and the wet curtain is processed by base paper and is in a honeycomb shape. The water in the water tank is pumped into the liquid distributor at the top of the wet curtain by the water pump, and is sprayed to the top of the wet curtain through the lower water holes at the bottom of the liquid distributor, so that a water film is formed on the surface of the wet curtain in the downward flowing process. The wind pressure is generated by the rotation of the fan blades, the evaporation of the surface water film is accelerated by the hot air passing through the wet curtain, the sensible heat of the hot air is converted into latent heat, the temperature is reduced, and the refrigeration effect is achieved.
The existing evaporative cooling fan generally has the problem that the area of a water membrane is not uniformly distributed, a wet curtain part is in a dry state, and a part of the wet curtain part is in a supersaturated state, so that the evaporation efficiency is seriously influenced, the refrigeration effect is further reduced, and the existing evaporative cooling fan generally adopts through-flow fan blades, so that the air volume is small, and the user experience is poor. Analysis shows that the problem of uneven water film surface integral distribution is mainly caused by two reasons: firstly, the mass transfer capacity of the wet curtain is weaker due to the characteristics of the honeycomb structure of the wet curtain; secondly, due to the structural characteristics of the liquid distributor, a larger interval exists between two adjacent water drainage holes, so that part of the water drainage holes do not flow through, and further part of the wet curtain is in a dry state.
For solving this problem, patent No. CN203823976U discloses a take guiding gutter's air cooler is with wet curtain subassembly, including wet curtain and install in the guiding gutter at wet curtain top, the guiding gutter is the triangle-shaped structure of falling, and the edge is the cockscomb structure, can avoid the problem that water can't overflow under the effect of surface tension and come out, however this kind of guiding gutter structure does not change the drenching state of wet curtain, consequently does not fundamentally solve the uneven problem of water membrane area distribution to can't effectively promote the evaporation refrigeration effect.
Disclosure of Invention
The invention provides a cooling fan and a rotary liquid distribution control method, and aims to solve the technical problems that in the background art, evaporation type cooling fans are uneven in water film surface integral distribution and limited in evaporation effect.
In order to achieve the purpose, the specific technical scheme of the cooling fan and the rotary liquid distribution control method is as follows:
a cooling fan comprises a rotatable wet curtain and a liquid distribution groove, wherein the wet curtain can be immersed into the liquid level in the liquid distribution groove in the rotating process, and water flows on the surface of the wet curtain to form an even water film.
Furthermore, the wet curtain is arranged in the hollow frame, and the hollow frame is driven by the driving assembly to rotate the wet curtain.
Further, drive assembly includes the second motor, and the second motor is provided with the pivot, and fretwork frame surface is opened there is the shaft hole, and the shaft hole supplies the pivot to peg graft.
Furthermore, one side of the wet curtain is provided with a rotatable fan blade, and the fan blade and the wet curtain are arranged oppositely.
Furthermore, the wet curtain is circular, and the fan blades are axial flow fan blades and are arranged coaxially with the wet curtain.
Furthermore, the liquid distribution tank is connected with a water tank through a pipeline, and a water pump is arranged in the water tank to supply water to the liquid distribution tank.
A rotary liquid distribution control method of a cooling fan comprises the following steps:
acquiring cold air parameters of the cooling fan in a cold air stage;
when the cold air parameter meets a first preset condition, controlling a wet curtain of the cooling fan to rotate, immersing the wet curtain into the liquid level in a liquid distribution groove in the rotating process of the wet curtain, and enabling water to flow on the surface of the wet curtain to distribute liquid so as to enable the surface of the wet curtain to form a uniform water film;
acquiring liquid distribution parameters after the wet curtain rotates;
and when the liquid distribution parameters meet a second preset condition, controlling the wet curtain of the cooling fan to stop rotating, forming a water film on the surface of the wet curtain and allowing air to flow through, and evaporating the water film to form cold air so as to enter a cold air stage.
Further, satisfy between the wet curtain rotation of first preset condition and control thermantidote at cold wind parameter, still include:
acquiring a first water supply parameter;
and when the first water supply parameter meets a third preset condition, keeping the wet curtain static and supplying water to the liquid distribution tank.
Further, when supplying water to the liquid distribution tank, the method also comprises the following steps:
acquiring a second water supply parameter;
and when the second water supply parameter meets a fourth preset condition, stopping water supply and entering a liquid distribution stage.
And further, entering a liquid distribution stage when the first water supply parameter does not meet a third preset condition.
The cooling fan and the rotary liquid distribution control method have the following advantages: matching with an axial flow fan blade and a round wet curtain, wherein the edge of the wet curtain penetrates into the liquid distribution groove and is soaked in water; when the fan blade during operation, wet curtain takes place intermittent type formula low-speed rotatory in step, and along with the rotation of wet curtain, water can be under the effect of gravity evenly distributed to wet curtain surface and form the water film, and axial compressor fan blade can provide great amount of wind simultaneously, accelerates the evaporation of water film, can effectively promote evaporation efficiency, and then promotes refrigeration effect. Experiments prove that the novel cooling fan has obviously improved evaporation refrigeration effect, the maximum temperature drop can reach 9 ℃, and the temperature is far higher than that of a conventional evaporation cooling fan.
Drawings
FIG. 1 is a schematic view of the wet curtain fabric liquid structure of the present invention;
FIG. 2 is an exploded view of a cooling fan according to the present invention;
FIG. 3 is a flow chart of the intermittent dispensing of the present invention;
FIG. 4 is a water replenishing flow chart of the liquid distribution tank of the present invention.
The notation in the figure is:
1. a base; 2. a pillar; 3. a housing; 31. an air outlet grille; 32. an air inlet grille; 4. a fan blade; 5. wet curtain; 51. hollowing out the frame; 6. a liquid distributing groove; 7. a water tank; 71. a water pump; 72. a water level sensor.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, a cooling fan and a rotary liquid distribution control method according to the present invention are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the cooling fan of the present invention includes a base 1. The base 1 is provided with a pillar 2. The top end of the pillar 2 is fixedly connected with a housing 3, and the front side and the rear side of the housing 3 are respectively provided with an air outlet grille 31 and an air inlet grille 32. The rotatable fan blades 4 are arranged in the housing 3, and the fan blades 4 are driven by the first motor to rotate, so that air enters from the air inlet grille 32 and is discharged from the air outlet grille 31 to form airflow, the air flow rate is increased, and the temperature is reduced.
The cooling fan is also provided with a wet curtain 5 for realizing evaporative refrigeration. Generally, the wet curtain 5 is installed at one side of the air intake grill 32, and evaporates through a water film on the upper surface of the wet curtain 5 to cool the air. In order to form a uniform water film on the wet curtain 5, the wet curtain 5 is distributed in a rotating manner. A liquid distribution groove 6 is arranged in the housing 3, and one side of the wet curtain 5 is soaked under the liquid level in the liquid distribution groove 6. Since the wet curtain 5 is difficult to absorb water, the water adheres to the surface of the wet curtain 5. Thus, with the rotation of the wet curtain 5, the water is driven to the liquid level by the wet curtain 5 and gradually distributed to the surface of the wet curtain 5 under the action of gravity to form an even water film so as to form an even water film. The fan blades 4 enable air to flow through the water film, so that evaporation of the water film is accelerated, and the evaporation refrigeration effect can be effectively improved.
Specifically, since the wet curtain 5 needs to rotate, in order to ensure the maximum area of the water film of the wet curtain 5, the wet curtain 5 needs to be circular, and the longitudinal section of the corresponding housing 3 is also circular. The fan blades 4 are axial flow fan blades 4 limited by the shape of the housing 3 and are opposite to and even coaxially arranged with the wet curtain 5. In addition, the cross-flow fan blade 4 can still be adopted, but the problem of space waste caused by the adoption of the housing 3 is solved.
In order to drive the wet curtain 5 to rotate, the wet curtain 5 is arranged in the hollow frame 51, and the hollow frame 51 is a box-shaped frame, so that the wet curtain 5 is sleeved in the hollow frame 51. The hollow frame 51 is connected with the rotating shaft of the driving component, so that the hollow frame 51 and the wet curtain 5 rotate.
Foretell drive assembly can erect the second motor in housing 3 for passing through the support, and the second motor is provided with the pivot, and fretwork frame 51 surface is opened there is the shaft hole, and the shaft hole supplies the pivot to peg graft to second motor drive wet curtain 5 rotates. The drive assembly can also share the power of a first motor with the fan blades 4, a tail gear box is arranged inside the housing 3, the first motor is provided with a first output shaft and a second output shaft, the first output shaft is connected with the fan blades 4, the second output shaft drives a gear set inside the tail gear box to rotate, and then drives the output shaft of the tail gear box to rotate, the output shaft of the tail gear box is connected with the wet curtain 5, and therefore the first motor can be achieved to drive the fan blades 4 to rotate and can also drive the wet curtain 5 to rotate. In a word, the torque provided by the first motor of the fan blade 4 can be transmitted to the wet curtain 5 through the reduction gear in the tail gearbox, and the low-speed rotation of the wet curtain 5 can also be realized. The specific gear set structure of the tail gearbox adopts the prior art, and the invention is not repeated.
The liquid distribution groove 6 is provided with an opening at the upper side, and the opening is used for the wet curtain 5 to extend into the liquid level in the liquid distribution groove 6 so as to distribute the liquid. The liquid distribution groove 6 can be integrally formed with the housing 3, the inner wall of the housing 3 is provided with the partition boards which are oppositely arranged, and the housing 3 is arc-shaped, so that the integrally formed liquid distribution groove 6 is enclosed. The liquid distributing groove 6 can also be formed separately and fixed on the inner side of the housing 3 by inserting into the groove of the housing 3.
In order to add water to the liquid distribution groove 6, the cooling fan is also provided with a water adding assembly. The water adding assembly comprises a water tank 7 arranged in the base 1, a water pump 71 is arranged in the water tank 7, a water outlet of the water pump 71 is provided with a water pipe, and the water pipe penetrates through the support 2 and is connected to the liquid distribution groove 6, so that water is supplied to the liquid distribution groove 6 through the water pump 71. In addition, a water inlet can also be directly arranged on the housing 3, the water inlet is connected with the liquid distribution groove 6 through a water pipe, and water is added through the water inlet.
Further, a water level sensor 72 is provided in the water tank 7, and the water level sensor 72 is installed at the bottom of the water tank 7 for detecting the water level in the water tank 7. When the water level is low, the water level sensor 72 causes the alarm to alarm.
In summary, the cooling fan has three working phases by the water supply of the water pump 71 and the rotation of the wet curtain 5:
in the water supply stage, a water tank 7 adds water to the liquid distribution tank 6 to enable the liquid level in the liquid distribution tank 6 to rise;
in the liquid distribution stage, the wet curtain 5 rotates, so that water is driven to the liquid level by the wet curtain 5 and is gradually distributed on the surface of the wet curtain 5 under the action of gravity to form a uniform water film;
and in the cold air stage, air flows through the formed water film, and the cold air is formed through evaporation of the water film.
In the three stages, the rotation of the fan blade 4 is independent and is not influenced by the water adding of the water pump 71 and the rotation of the wet curtain 5. The water pump 71 adds water and the wet curtain 5 rotates in a mutually restricted way, and the water supply stage is firstly carried out, and then the circulation of the liquid distribution stage and the cold air stage is carried out. When the water level in the liquid distribution tank 6 is insufficient, the water is returned to the water supply stage to supply water. The fan blades 4 rotate in the three modes, and can also rotate only in the cold air stage.
Therefore, the invention also comprises a rotary liquid distribution control method of the cooling fan, which mainly comprises the following steps:
s10, obtaining cold air parameters of the cooling fan in a cold air stage,
specifically, the cold wind parameter is the water film evaporation degree of wet curtain 5, and when the water film evaporation degree of wet curtain 5 is greater than the mark, the water film on wet curtain 5 surface obtains fully evaporating, needs to rotate wet curtain 5 and carries out the cloth liquid. However, the degree of water film evaporation of the wet curtain 5 is difficult to detect. Therefore, the evaporation time is used to indirectly display the evaporation degree of the water film detection wet curtain 5. The evaporation time is the cumulative time between when the rotation of the wet curtain 5 is stopped and when the wet curtain 5 starts to rotate again.
S20, when the cold air parameter meets a first preset condition, controlling the wet curtain 5 of the cooling fan to rotate, immersing the wet curtain 5 into the liquid level in the liquid distribution groove 6 in the rotating process, and enabling water to flow on the surface of the wet curtain 5 to form a uniform water film on the surface of the wet curtain 5;
specifically, the first preset condition includes that the evaporation time is longer than the evaporation standard time, and the evaporation standard time is an experimental empirical value and is about 4-6 minutes. After the water film on the wet curtain 5 is fully evaporated in 4-6 minutes, water is distributed again for forming.
S30, acquiring cloth liquid parameters of the wet curtain 5 after rotation;
specifically speaking, the cold wind parameter is the water film forming degree of wet curtain 5, and when the water film forming degree of wet curtain 5 is greater than the mark, the water film on wet curtain 5 surface obtains shaping and even. However, the degree of water sheeting of the wet curtain 5 is also difficult to detect. Therefore, the rotation number and the rotation time are adopted to indirectly display the water film forming degree.
S40, when the liquid distribution parameters meet a second preset condition, controlling the wet curtain 5 of the cooling fan to stop rotating, forming a water film on the surface of the wet curtain 5 and allowing air to flow through, and evaporating the water film to form cold air so as to enter a cold air stage;
and the second preset condition comprises that the number of rotation turns is greater than the number of turns standard. The number of turns is a standard experimental value, and is about 10 turns. When the number of rotation turns of the wet curtain 5 is larger than 10, the water film on the wet curtain 5 completes the forming, so that the air sucked by the fan blades 4 is evaporated and cooled by the wet curtain 5 to form cold air.
Due to the number of rotation turns being collected, a sensor needs to be provided. Therefore, the rotation time is adopted as the liquid distribution parameter for cost consideration. The standard rotation time is determined by the formula T2 ═ N/r, where N is the number of rotations required for the wet curtain 5 to sufficiently distribute liquid, and r is the rotation speed of the wet curtain 5. And when the rotation time of the wet curtain 5 is greater than the calculated rotation standard time, controlling the wet curtain 5 of the cooling fan to stop rotating.
In addition, the liquid distribution parameters can also be adopted as the rotation time and the rotation speed of the motor, specifically:
the rotation time of the wet curtain 5 and the rotation speed of the motor are collected,
according to the rotation time of the wet curtain 5 and the rotating speed of the motor, the number of the rotation turns of the wet curtain 5 is calculated,
and when the number of the rotation turns of the wet curtain 5 is greater than 10 turns, controlling the wet curtain 5 of the cooling fan to stop rotating.
Besides the intermittent rotating liquid distribution method, the rotating liquid distribution control method also comprises a water supply method, in particular to a method for controlling the intermittent rotating liquid distribution.
As shown in fig. 4, the method further comprises the step of controlling the rotation of the wet curtain 5 of the cooling fan when the cold air parameter meets the first preset condition
S50, acquiring a first water supply parameter;
specifically, the water level in the cloth liquid tank 6 is detected.
S60, when the first water supply parameter meets a third preset condition, keeping the wet curtain 5 static and supplying water to the liquid distribution tank 6;
s61, acquiring a second water supply parameter;
s62, stopping water supply and controlling the wet curtain 5 of the cooling fan to rotate when the second water supply parameter meets a fourth preset condition;
s70, when the first water supply parameter does not meet a third preset condition, controlling the wet curtain 5 of the cooling fan to rotate;
when the cold air parameter meets a first preset condition, controlling a wet curtain 5 of the cooling fan to rotate, immersing the wet curtain 5 into the liquid level in a liquid distribution groove 6 in the rotating process, and enabling water to flow on the surface of the wet curtain 5 to form a uniform water film on the surface of the wet curtain 5;
specifically, the first water supply parameter and the second water supply parameter may be both the water level of the liquid distribution tank 6, and therefore, the third preset condition is that when the water level is low, water is supplied to the liquid distribution tank 6; and the fourth preset condition is that when the water level is high, water supply is stopped, and liquid distribution circulation is continued.
In addition, the first water supply parameter can also be intermittent rotation duration, and the intermittent rotation duration standard time is V/Q through the formula T1To determine; v is the volume of the liquid distribution groove 6; q1The evaporation rate of the water film on the surface of the wet curtain 5 is an experimental empirical value under the working state of the axial flow fan blade 4. Therefore, the third preset condition may be that when the intermittent rotation duration is longer than the intermittent rotation duration standard time, the water in the liquid distribution tank 6 is completely evaporated, and the water needs to be supplied again by the water pump 71.
The second water supply parameter can also be water supply time which is determined by the formula T ═ V/Q2To determine that V is the volume of the liquid distribution groove 6 and Q2The flow rate of the water pump 71. Therefore, the fourth preset condition may be that, when the water supply time is longer than the water supply standard time, the water pump 71 is turned off, and the liquid distribution is continued.
Before the water tank 7 replenishes the liquid distribution tank 6 with water, the method further comprises the following steps:
s80, acquiring a water level signal of the water tank 7;
when the water level signal meets the fifth preset condition, the water pump 71 is stopped, and an alarm signal is sent to remind a user;
the fifth preset condition is that the water level in the water tank 7 is equal to the lowest water level.
I.e. the level sensor 72 in the bottom of the water tank can also detect the water level in the water tank 7 and if the water level in the water tank 7 is not sufficient, an alarm signal is given to alert the user.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A cooling fan is characterized by comprising a liquid distribution tank and a rotatable wet curtain, wherein the wet curtain can be immersed into the liquid level in the liquid distribution tank in the rotating process and enables water to flow on the surface of the wet curtain so as to form a uniform water film.
2. The cooling fan according to claim 1, wherein the wet curtain is disposed in a hollow frame, and the hollow frame is driven by a driving assembly to rotate the wet curtain.
3. The cooling fan according to claim 2, wherein the driving assembly comprises a second motor, the second motor is provided with a rotating shaft, and a shaft hole is formed in the surface of the hollow frame and used for the rotating shaft to be inserted.
4. The cooling fan according to claim 1, wherein a rotatable fan blade is provided on one side of the wet curtain, and the fan blade and the wet curtain are disposed opposite to each other.
5. The cooling fan according to claim 4, wherein the wet curtain is circular, and the fan blades are axial flow fan blades and are arranged coaxially with the wet curtain.
6. The cooling fan according to claim 1, wherein the liquid distribution tank is connected to a water tank through a pipe, and a water pump is provided in the water tank to supply water to the liquid distribution tank.
7. A rotary liquid distribution control method of a cooling fan is characterized by comprising the following steps:
acquiring cold air parameters of the cooling fan in a cold air stage;
when the cold air parameter meets a first preset condition, controlling a wet curtain of the cooling fan to rotate, immersing the wet curtain into the liquid level in a liquid distribution groove in the rotating process of the wet curtain, and enabling water to flow on the surface of the wet curtain to distribute liquid so as to enable the surface of the wet curtain to form a uniform water film;
acquiring liquid distribution parameters after the wet curtain rotates;
and when the liquid distribution parameters meet a second preset condition, controlling the wet curtain of the cooling fan to stop rotating, forming a water film on the surface of the wet curtain and allowing air to flow through, and evaporating the water film to form cold air so as to enter a cold air stage.
8. The control method according to claim 7, wherein between the time when the cool air parameter satisfies the first preset condition and the time when the wet curtain of the cooling fan is controlled to rotate, the method further comprises:
acquiring a first water supply parameter;
and when the first water supply parameter meets a third preset condition, keeping the wet curtain static and supplying water to the liquid distribution tank.
9. The control method according to claim 8, further comprising, when supplying water to the liquid distribution tank:
acquiring a second water supply parameter;
and when the second water supply parameter meets a fourth preset condition, stopping water supply and entering a liquid distribution stage.
10. The control method according to claim 8,
and entering a liquid distribution stage when the first water supply parameter does not meet a third preset condition.
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| CN101025284A (en) * | 2006-02-25 | 2007-08-29 | 翟光友 | Automatic humidifying apparatus |
| CN101349463A (en) * | 2007-08-16 | 2009-01-21 | 曹露馨 | Evaporation type temperature reduction ventilation machine |
| US20100270397A1 (en) * | 2009-04-28 | 2010-10-28 | Jung-Hua Lin | Electric fan with water atomizer |
| CN103026141A (en) * | 2010-07-26 | 2013-04-03 | 大金工业株式会社 | Humidifier |
| CN102338438A (en) * | 2011-10-14 | 2012-02-01 | 浙江威大机械有限公司 | Cooling fan |
| CN104406260A (en) * | 2014-12-15 | 2015-03-11 | 莱克电气绿能科技(苏州)有限公司 | Waterwheel type humidifier |
| CN104776529A (en) * | 2015-04-07 | 2015-07-15 | 西安工程大学 | Indirect evaporative cooling and roller packing type direct evaporative cooling combined air conditioning unit |
| CN105737311A (en) * | 2016-03-17 | 2016-07-06 | 上海傲聚精密模塑有限公司 | Humidity increasing device |
| KR20190050612A (en) * | 2017-11-03 | 2019-05-13 | 김도윤 | Air cooler |
| CN208863259U (en) * | 2018-09-19 | 2019-05-17 | 北京中农富通园艺有限公司 | It is a kind of using wet curtain as the natural water-supplying blower of cold media |
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| CN113864916B (en) | 2022-12-23 |
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