CN100489405C - Vaporizing and cooling air conditioning device based on ultrasonic technology - Google Patents

Abstract

An evaporative cooling air conditioner based on ultrasonic technology belongs to the technical field of air conditioning and energy saving. Including dehumidification or regeneration air duct, evaporative cooling air duct, two ultrasonic dehumidifiers, two ultrasonic generators, two fans, two exhaust pipes, partitions, ultrasonic atomizing sheets, atomizing tanks, water baffles and A number of air valves and two ultrasonic dehumidifiers alternately perform air dehumidification and dehumidification agent regeneration. The air dehumidified by the ultrasonic dehumidifier enters the evaporative cooling air channel, and the fine liquid atomized by the ultrasonic atomizing sheet evaporates and cools down. Then it flows through the water baffle and is introduced into the air-conditioned area by the fan. The invention can effectively cool down the air in high-humidity and high-humidity environment, and has potential energy-saving effect and strong adaptability.

Description

Evaporative cooling air conditioner based on ultrasonic technology

technical field

The invention relates to an evaporative cooling air conditioner, in particular to an evaporative cooling air conditioner based on ultrasonic technology, and belongs to the technical field of air conditioner energy saving.

Background technique

Compared with mechanical refrigeration and air-conditioning systems, evaporative cooling air-conditioning units have the advantages of economy, energy saving, environmental protection, and improvement of indoor air quality in buildings. After searching the literature of the prior art, it is found that the Chinese patent (application) number is 03144509, and the name is natural wind indirect The invention patent of evaporative cooling air handler discloses an evaporative cooling air conditioner, which is composed of a conventional microcomputer control circuit, a primary fan, a secondary fan, a water atomization device and an air heat exchanger, and realizes cooling by heat. The new air-conditioning system can replace mechanical refrigeration, and has a high COP value, which is environmentally friendly and has remarkable energy-saving effects. However, this evaporative cooling air conditioner can only be adapted to dry areas. If it is applied to humid areas, its cooling effect on the air is not ideal. Therefore, its application is limited by the climate environment. In order to solve this problem, people proposed to dehumidify the high-humidity air first, and then carry out the air treatment method of evaporative cooling. The dehumidification mainly uses lithium bromide or lithium chloride concentrated solution to absorb the moisture in the air, and then heats up the lithium bromide or lithium chloride. The lithium solution is concentrated and regenerated. After searching the literature of the prior art, it is found that the Chinese patent (application) number is 200410021221, and the name is an energy storage dehumidification/air conditioning method and equipment invention patent for an energy storage dehumidification/air conditioning unit. Its principle It is to convert the electrical energy into the dehumidification potential of the working solution and store it first. When it is necessary to dehumidify the air and cool or heat the dry air after dehumidification, the stored solution dehumidification potential can be converted into the energy required for air dehumidification and recovered. The heat in the dehumidification process heats the dry air or sprays water on the dehumidified air to evaporate and cool the air. The working solution used in the unit is lithium bromide or lithium chloride aqueous solution. The remarkable advantage of the present invention is that the dehumidification energy can be stored for a long time, and is suitable for energy storage and dehumidification in high-humidity areas. However, this kind of equipment has the following two disadvantages: (1) the working fluid is highly corrosive and has high requirements for equipment materials, and because of the solution circulation during work, the leak-proof maintenance of the equipment is troublesome; (2) due to the water The latent heat of evaporation is large, and the use of electric heating to remove the water in the working solution obviously consumes a lot of electric energy, and the working solution needs to be cooled after the working solution is heated and regenerated. Therefore, this kind of air treatment equipment does not It has obvious energy-saving effect.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies and defects of the prior art, and provide an evaporative cooling air-conditioning device based on ultrasonic technology. The technology enhances the evaporation effect of water in the air so that the air can be cooled to a greater extent. At the same time, ultrasonic waves are used to regenerate the solid desiccant to meet the air dehumidification requirements. The potential advantages of ultrasonic regeneration are: on the one hand, the mechanical vibration effect generated when ultrasonic waves propagate in a solid desiccant causes the solid medium particles to vibrate strongly at high frequencies, tearing the liquid water film on the surface of the desiccant into micron-sized particles Water droplets, which help the air flow to separate them directly from the surface of the desiccant, thereby reducing the large amount of energy required for water vaporization; The mass transfer resistance between them can enhance the mass transfer coefficient and improve the regeneration efficiency of desiccant. If combined with low-grade energy, it can effectively improve the utilization rate of low-grade energy in the regeneration of solid desiccant. The advantage of ultrasonic atomization is that the "cavitation" effect produced by ultrasonic waves in the liquid makes the liquid surface bulge, and water mist is generated around the raised water surface. The tiny liquid particles in the water mist greatly increase the contact area between water and air. The evaporative cooling effect of water on air is strengthened.

The present invention is achieved through the following technical solutions, the present invention includes a dehumidification or regeneration air duct, an evaporative cooling air duct, a first ultrasonic dehumidifier, a second ultrasonic dehumidifier, a first ultrasonic generator, a first fan, and a first air valve , the first air duct, the second air valve, the second air duct, the third air valve, the fourth air valve, the partition, the ultrasonic atomizing sheet, the second ultrasonic generator, the atomizing tank, the water deflector, The second fan, wherein both the first ultrasonic dehumidifier and the second ultrasonic dehumidifier include a plurality of desiccant stuffing boxes, ultrasonic radiation plates, ultrasonic vibration chips, positive electrode thin copper sheets, negative electrode thin copper sheets, rear cover plates, and connecting bolts .

The first fan is located at the entrance of the dehumidification or regeneration air duct, the partition is located behind the first fan, and divides the dehumidification or regeneration air duct into upper and lower independent channels, and the third air valve and the fourth air valve are respectively installed on the At the exits of the upper and lower passages, the first ultrasonic dehumidifier and the second ultrasonic dehumidifier are respectively located at the entrances of the upper and lower passages, and there are air outlets in the middle of the upper and lower passages of the dehumidification or regeneration air passage. And respectively connected with the first air duct and the second air duct, the first air valve and the second air valve are respectively installed in the first air duct and the second exhaust duct, the upper and lower air ducts of the dehumidification or regeneration The outlet of the channel is connected to the inlet end of the evaporative cooling air duct through a rectangular reducer. The atomizing water tank, the water deflector and the second fan are placed in the evaporative cooling air channel in sequence according to the airflow direction, and the ultrasonic atomizing sheet is placed in the atomizing water tank. Its positive and negative electrodes are respectively connected with the positive and negative electrodes of the second ultrasonic generator. A plurality of desiccant stuffing boxes are arranged in sequence and placed on the upper part of the first ultrasonic dehumidifier and the second ultrasonic dehumidifier respectively. The bottom surface of the aerosol stuffing box is closely connected with the ultrasonic radiation plate, and there is a certain gap between the desiccant stuffing boxes to facilitate air flow. Through the two ultrasonic vibration chips, the positive poles are opposite, and they are tightly clamped between the ultrasonic radiation plate and the rear cover through the connecting bolts. The positive thin copper sheet is located in the middle of the two ultrasonic vibration chips, and the negative thin copper sheet is located between the ultrasonic vibration chip and the rear cover. In the middle, the positive electrode thin copper sheet and the negative electrode thin copper sheet are respectively connected to the positive and negative electrodes of the first ultrasonic generator.

The first ultrasonic dehumidifier and the second ultrasonic dehumidifier alternately perform air dehumidification and dehumidifier regeneration. When the first ultrasonic dehumidifier performs air dehumidification work, the ultrasonic vibration chip in the second ultrasonic dehumidifier generates ultrasonic waves of a certain frequency and intensity under the drive of the first ultrasonic generator, and dehumidifies the dehumidifier in the second ultrasonic dehumidifier. Regeneration treatment, at this time, the second air valve and the third air valve are opened, the first air valve and the fourth air valve are closed, and the regenerated air is discharged from the second exhaust pipe; when the second ultrasonic dehumidifier performs air dehumidification work At this time, the ultrasonic vibration chip in the first ultrasonic dehumidifier generates ultrasonic waves of a certain frequency and intensity under the drive of the first ultrasonic generator, and regenerates the desiccant in the first ultrasonic dehumidifier. At this time, the first damper and the fourth air valve are opened, the second air valve and the third air valve are closed, and the regenerated air is discharged from the first exhaust pipe; the air dehumidified by the first ultrasonic dehumidifier or the second ultrasonic dehumidifier enters and evaporates In the cooling air duct, the fine liquid atomized by the ultrasonic atomizing sheet evaporates and cools down, then flows through the water deflector, and is introduced into the air-conditioning area by the second fan.

Beneficial effects of the present invention: the present invention uses silica gel or molecular sieve solid dehumidifier and ultrasonic regeneration technology to dehumidify air with high humidity, and uses ultrasonic atomization technology to enhance the evaporation effect of water in the air, so that the air has a greater degree of Cool down. The use of solid dehumidifiers to dehumidify air can effectively overcome the shortcomings of liquid dehumidifiers, and the use of ultrasonic waves to regenerate solid dehumidifiers can effectively reduce the regeneration temperature of solid dehumidifiers. It has good regeneration performance and can effectively improve the utilization rate of low-grade energy in the regeneration of solid desiccant when combined with low-grade energy. Evaporative cooling effect on air.

Description of drawings

Fig. 1 is a structural schematic diagram of the evaporative cooling air conditioner of the present invention.

Fig. 2 is a schematic structural diagram of the ultrasonic dehumidifier of the present invention.

Fig. 3 is the A-A sectional view shown in Fig. 2 of the present invention.

Detailed ways

The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2 and Figure 3, the invention of this embodiment includes a dehumidification or regeneration air duct 1, an evaporative cooling air duct 2, a first ultrasonic dehumidifier 3, a second ultrasonic dehumidifier 4, and a first ultrasonic generator 5 , the first fan 6, the first damper 7, the first exhaust pipe 8, the second damper 9, the second exhaust duct 10, the third damper 11, the fourth damper 12, the partition 13, ultrasonic fog Chemical sheet 14, second ultrasonic generator 15, atomizing water tank 16, water deflector 17, second blower fan 18, wherein, first ultrasonic dehumidifier 3 and second ultrasonic dehumidifier 4 all comprise a plurality of desiccant stuffing boxes 19 , Ultrasonic radiation plate 20, ultrasonic vibration chip 21, positive electrode thin copper sheet 22, negative electrode thin copper sheet 23, rear cover plate 24, connecting bolt 25.

The first blower 6 is located at the entrance of the dehumidification or regeneration air passage 1, and the partition 13 is located behind the first blower 6, and separates the dehumidification or regeneration air passage 1 into upper and lower independent passages, the third damper 11 and the second The four air valves 12 are respectively installed at the exits of the upper and lower passages, the first ultrasonic dehumidifier 3 and the second ultrasonic dehumidifier 4 are respectively located at the entrances of the upper and lower passages, and the upper and lower passages of the dehumidification or regeneration air passage 1 There are air outlets in the middle positions, and are respectively connected with the first air exhaust pipe 8 and the second air exhaust pipe 10, and the first air valve 7 and the second air valve 9 are respectively installed in the first air exhaust pipe 8 and the second air exhaust pipe In the second row of air ducts 10, the outlets of the upper and lower passages of the dehumidification or regeneration air duct 1 are connected to the inlet end of the evaporative cooling air duct 2 through a rectangular reducer, and the atomizing water tank 16, the water deflector 17 and the second fan 18 are The airflow direction is placed in the evaporative cooling air channel 2 in turn, the ultrasonic atomizing sheet 14 is placed in the atomizing water tank 16, and its positive and negative electrodes are respectively connected with the positive and negative electrodes of the second ultrasonic generator 15. A plurality of desiccant stuffing boxes 19 are arranged in sequence and respectively placed on the upper part of the first ultrasonic dehumidifier 3 and the second ultrasonic dehumidifier 4, the bottom surface of the desiccant stuffing boxes 19 is closely connected with the ultrasonic radiation plate 20, and the space between the desiccant stuffing boxes 19 The gap is 1mm-2mm, so that the air flow can pass through. Two ultrasonic vibrating wafers 21 are opposite to each other, and are tightly clamped between the ultrasonic radiation plate 20 and the rear cover plate 24 through connecting bolts 25. The positive electrode thin copper sheet 22 is located between the two ultrasonic vibrating wafers. 21, the negative electrode thin copper sheet 23 is located between the ultrasonic vibration chip 21 and the rear cover plate 24, and the positive electrode thin copper sheet 22 and the negative electrode thin copper sheet 23 are respectively connected to the positive and negative electrodes of the first ultrasonic generator 5.

In this embodiment, the dehumidification or regeneration air duct 1 and the evaporative cooling air duct 2 are rectangular ventilation ducts made of stainless steel, and the cross-sectional dimensions of the first ultrasonic dehumidifier 3 and the second ultrasonic dehumidifier 4 are respectively the same as those of the dehumidification or cooling duct. The cross-sectional dimensions of the upper and lower passages of the regenerative air duct 1 are consistent. The desiccant stuffing box 19 is a rectangular box made of stainless steel orifice plate material. The hole diameter on the orifice plate is 3mm, and the hole spacing is 1mm. The filler in the box 19 is silica gel or molecular sieve with a particle size greater than or equal to 4mm. The ultrasonic radiation plate 20 is made of high-strength aluminum alloy, the ultrasonic vibration chip 21 is made of lead zirconate titanate piezoelectric ceramics, and the rear cover 24 is made of steel. Made, the matching frequency range between the first ultrasonic generator 5 and the ultrasonic vibrating chip 21 is 16kHz～28kHz, the matching power range is 100W～200W, the matching frequency between the second ultrasonic generator 15 and the ultrasonic atomizing sheet 14 The range is 170kHz~250kHz, and the matching power range is 20W~50W.

The first ultrasonic dehumidifier 3 and the second ultrasonic dehumidifier 4 alternately perform air dehumidification and dehumidifier regeneration. When the first ultrasonic dehumidifier 3 carried out the air dehumidification work, the ultrasonic vibration chip 21 in the second ultrasonic dehumidifier 4 produced the ultrasonic wave of certain frequency and intensity under the driving of the first ultrasonic generator 5, and the second ultrasonic dehumidifier 4 The desiccant in the desiccant is regenerated. At this time, the second damper 9 and the third damper 11 are opened, the first damper 7 and the fourth damper 12 are closed, and the regenerated air is discharged from the second exhaust pipe 10; When the second ultrasonic dehumidifier 4 carried out the air dehumidification work, the ultrasonic vibration chip 21 in the first ultrasonic dehumidifier 3 produced the ultrasonic waves of a certain frequency and intensity under the driving of the first ultrasonic generator 5, and the first ultrasonic dehumidifier 3 The desiccant in the dehumidifier is regenerated. At this time, the first damper 7 and the fourth damper 12 are opened, the second damper 9 and the third damper 11 are closed, and the regenerated air is discharged from the first exhaust pipe 8; The air dehumidified by the first ultrasonic dehumidifier 3 or the second ultrasonic dehumidifier 4 enters the evaporative cooling air duct 2, and the fine liquid atomized by the ultrasonic atomizing sheet 14 evaporates and cools down, and then flows through the water deflector 17, Into the air-conditioned area by the second fan 18.

Claims (5)

1. An evaporative cooling air conditioner based on ultrasonic technology, comprising: dehumidification or regeneration air duct (1), evaporative cooling air duct (2), first ultrasonic dehumidifier (3), second ultrasonic dehumidifier (4), The first ultrasonic generator (5), the first blower fan (6), the first air valve (7), the first air exhaust pipe (8), the second air valve (9), the second air exhaust pipe (10), The third air valve (11), the fourth air valve (12), partition (13), ultrasonic atomizing sheet (14), the second ultrasonic generator (15), atomizing tank (16), water retaining plate ( 17), the second blower fan (18), is characterized in that: the first ultrasonic dehumidifier (3) and the second ultrasonic dehumidifier (4) all include desiccant stuffing box (19), ultrasonic radiation plate (20), ultrasonic vibration Wafer (21), positive electrode thin copper sheet (22), negative electrode thin copper sheet (23), rear cover plate (24), connecting bolts (25), the first fan (6) is located in the dehumidification or regeneration air duct (1) At the entrance, the baffle (13) is located behind the first fan (6), and divides the dehumidification or regeneration air duct (1) into upper and lower independent channels, the third air valve (11) and the fourth air valve ( 12) Installed at the exits of the upper and lower passages respectively, the first ultrasonic dehumidifier (3) and the second ultrasonic dehumidifier (4) are respectively located at the entrances of the upper and lower passages, above the dehumidification or regeneration air passage (1) , The middle position of the lower passage is provided with an air exhaust port, and is connected with the first air exhaust pipe (8) and the second air exhaust pipe (10) respectively, the first air valve (7) and the second air valve (9) Installed in the first exhaust duct (8) and the second exhaust duct (10) respectively, the upper and lower channel outlets of the dehumidification or regeneration air duct (1) pass through the rectangular reducer and the evaporative cooling air duct (2) The inlet end is connected, the atomizing water tank (16), the water baffle (17) and the second fan (18) are placed in the evaporative cooling air duct (2) in sequence according to the airflow direction, and the ultrasonic atomizing sheet (14) is placed in the atomizing In the water tank (16), its positive and negative electrodes are respectively connected to the positive and negative electrodes of the second ultrasonic generator (15), and a plurality of desiccant stuffing boxes (19) are arranged in sequence and placed in the first ultrasonic dehumidifier (3) and the first ultrasonic dehumidifier respectively. The upper part of the second ultrasonic dehumidifier (4), the bottom surface of the desiccant stuffing box (19) is closely connected with the ultrasonic radiation plate (20), and the two ultrasonic vibration chips (21) are opposite to each other, and are tightly clamped by the connecting bolts (25) in the ultrasonic radiation plate (20). Between the plate (20) and the back cover (24), the positive electrode thin copper sheet (22) is positioned in the middle of two ultrasonic vibrating chips (21), and the negative electrode thin copper sheet (23) is positioned between the ultrasonic vibrating chip (21) and the rear cover (24) In the middle, the positive electrode thin copper sheet (22) and the negative electrode thin copper sheet (23) are connected to the positive and negative electrodes of the first ultrasonic generator (5) respectively. 2. The evaporative cooling air-conditioning device based on ultrasonic technology according to claim 1, characterized in that said desiccant stuffing box (19) is a rectangular box made of stainless steel orifice material, and the hole diameter on the orifice plate is 3mm, the hole spacing is 1mm, the filler in the desiccant stuffing box (19) is silica gel or molecular sieve with particle diameter greater than or equal to 4mm, and the gap between the desiccant stuffing box (19) is 1mm～2mm. 3. The evaporative cooling air conditioner based on ultrasonic technology according to claim 1, characterized in that the dehumidification or regeneration air duct (1) and the evaporative cooling air duct (2) are rectangular ventilation ducts made of stainless steel , the ultrasonic radiation plate (20) is made of high-strength aluminum alloy, the ultrasonic vibrating chip (21) is made of lead zirconate titanate piezoelectric ceramics, and the back cover (24) is made of steel. 4. The evaporative cooling air conditioner based on ultrasonic technology according to claim 1, characterized in that the matching frequency range between the first ultrasonic generator (5) and the ultrasonic vibration chip (21) is 16 kHz to 28 kHz, The matching power range is 100W-200W, the matching frequency range between the second ultrasonic generator (15) and the ultrasonic atomizing sheet (14) is 170kHz-250kHz, and the matching power range is 20W-50W. 5. The evaporative cooling air conditioner based on ultrasonic technology according to claim 1, characterized in that the cross-sectional dimensions of the first ultrasonic dehumidifier (3) and the second ultrasonic dehumidifier (4) are respectively related to dehumidification or The cross-sectional dimensions of the upper and lower passages of the regeneration air passage (1) are consistent.

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