CN202392927U - Double-level evaporation-type air conditioner capable of achieving dew-point temperature - Google Patents

Abstract

The utility model discloses a double-level evaporation-type air conditioner capable of achieving the dew-point temperature. A tetragonal structure is adopted for a machine set; four direct evaporation coolers surround into an outer wall surface of the machine set; inner walls of the four direct evaporation coolers are respectively provided with an indirect evaporation cooler; a cavity surrounded by four indirect evaporation coolers is an outdoor air channel; the lower part of the cavity is provided with an axial flow fan; the upper part of each direct evaporation cooler and the upper part of each indirect evaporation cooler are provided with a water distributor respectively; the lower part of each direct evaporation cooler and the lower part of each indirect evaporation cooler are provided with a water collecting groove; and the water collecting grooves are respectively communicated with a water pump and the water distributors through pipelines. An inverted flow-type structure is adopted for the evaporation coolers provided by the utility model, the heat exchange efficiency is improved obviously, also the air consumption quantity of the coolers is reduced, and the indirect-direct double-level evaporation cooling can provide air with the temperature close to the dew-point temperature.

Description

Two-stage evaporative air cooler capable of reaching dew point temperature

technical field

The utility model belongs to the technical field of air conditioning and refrigeration, and relates to an evaporative air conditioner for air conditioning, in particular to a two-stage evaporative air conditioner capable of making the air temperature reach the dew point temperature.

Background technique

Evaporative cooling air-conditioning technology is a renewable energy that utilizes dry air energy, relies on the difference between the dry bulb temperature and the wet bulb temperature in the ambient air, and obtains cooling capacity through the heat and moisture exchange between water and air. The cooling method has the characteristics of energy saving, environmental protection, economy and health.

Using direct evaporative cooling or indirect evaporative cooling alone, due to the limited cooling range, its application is often limited by region and place of use, while indirect evaporative cooling with dew point can reduce the air temperature below the wet bulb temperature. Most of the current dew point indirect evaporative coolers are cross-flow type, that is, the dry channel and wet channel of the cooler are perpendicular to each other and form a cross flow. Since the primary air enters the wet channel through the perforation as secondary air, and is finally discharged from one side, the air supply volume of the cooler is only half of the intake air volume, and a large amount of air flow passes through the perforation, which increases the flow resistance, and the primary air is not exhausted. Let cool completely. Therefore, on the basis of improving the heat exchange efficiency of the dew point indirect evaporative cooler, increasing the air supply volume of the cooler and reducing the flow resistance are refrigeration technologies that urgently need to be developed.

Contents of the invention

The purpose of this utility model is to provide a two-stage evaporative air conditioner that can reach the dew point temperature. Starting from optimizing the structure of the cooler, it effectively solves the problem that the indirect evaporative cooler at the dew point has a large air consumption, and the heat exchange between the primary air and the secondary air is not enough. total question.

A technical scheme adopted by the utility model is a two-stage evaporative air conditioner that can reach the dew point temperature. Indirect evaporative coolers are arranged on the inner wall respectively, and the cavity surrounded by four indirect evaporative coolers is an outdoor air channel. The water tank, the lower part of the direct evaporative cooler and the indirect evaporative cooler are provided with a water collection tank, and the water collection tank is respectively connected with the water pump and the water distributor through pipelines.

The utility model is also characterized in that,

Among them, the filler of the direct evaporative cooler adopts corrugated paper filler, and the thickness of the filler is 80 mm ~ 120 mm.

The thickness of the indirect evaporative cooler is 350mm ~ 450mm, and it is composed of dry channels and wet channels arranged alternately.

The structure of the dry channel is as follows: including wall panels, the upper and lower edges of the wall panels are respectively provided with water barriers perpendicular to the wall panels, and several heat insulation strips are respectively arranged on the wall panels perpendicular to the air flow phase, There are fins coated with hydrophilic coating between the upper and adjacent heat insulation strips. The fins are rectangular corrugated, and the top of each wave forms a cavity, which is an air channel and the length of the cavity Consistent with the direction of air flow, there are two sets of slots on the fins, each set of slots forms a louver-shaped structure, and the openings of the two sets of slots face opposite directions.

The structure of the wet channel is as follows: it includes a wall plate, one side of the wall plate is vertically connected with a deflector plate, and a number of heat insulation strips are respectively arranged on the wall plate perpendicular to the air flow phase. A fin coated with a hydrophilic coating is arranged between adjacent heat insulation strips. The fin adopts a rectangular corrugated shape, and the top of each wave forms a cavity. The cavity is an air channel and the length of the cavity is in line with the air flow. The direction is the same, two sets of slots are opened on the fins, each set of slots forms a louver-shaped structure, and the openings of the two sets of slots face opposite directions.

Another technical solution adopted by the utility model is a two-stage evaporative air conditioner that can reach the dew point temperature. The unit adopts a square structure, and four indirect evaporative coolers surround the outer wall of the unit. The inner walls of the four direct evaporative coolers are respectively provided with direct evaporative coolers, and the cavity surrounded by four direct evaporative coolers is the output air channel. There is a water distributor, and the lower part of the direct evaporative cooler and the indirect evaporative cooler is provided with a sump, and the sump is respectively connected with the water pump and the water distributor through pipelines.

Among them, the filler of the direct evaporative cooler adopts corrugated paper filler, and the thickness of the filler is 80mm ~ 120mm.

The thickness of the indirect evaporative cooler is 350mm~450mm, and it is composed of dry channels and wet channels arranged alternately.

The structure of the dry channel is as follows: including wall panels, the upper and lower edges of the wall panels are respectively provided with water barriers perpendicular to the wall panels, and several heat insulation strips are respectively arranged on the wall panels perpendicular to the air flow phase, There are fins coated with hydrophilic coating between the upper and adjacent heat insulation strips. The fins are rectangular corrugated, and the top of each wave forms a cavity, which is an air channel and the length of the cavity Consistent with the direction of air flow, there are two sets of slots on the fins, each set of slots forms a louver-shaped structure, and the openings of the two sets of slots face opposite directions.

The structure of the wet channel is as follows: it includes a wall plate, one side of the wall plate is vertically connected with a deflector plate, and a number of heat insulation strips are respectively arranged on the wall plate perpendicular to the air flow phase. A fin coated with a hydrophilic coating is arranged between adjacent heat insulation strips. The fin adopts a rectangular corrugated shape, and the top of each wave forms a cavity. The cavity is an air channel and the length of the cavity is in line with the air flow. The direction is the same, two sets of slots are opened on the fins, each set of slots forms a louver-shaped structure, and the openings of the two sets of slots face opposite directions.

Compared with the existing evaporative cooling air-conditioning technology, the advantages of the utility model air conditioner are:

(1) The shape of the air conditioner is a cube, and indirect evaporative coolers and direct evaporative coolers are arranged on four sides. The structural characteristics and processing technology can refer to the current evaporative air conditioners with relatively mature technology, which can shorten the development and processing cycle of new products .

(2) The indirect evaporative cooler of the air conditioner adopts counterflow dew point indirect evaporative cooling technology. The flow direction of the output air is opposite to that of the working air, and the countercurrent heat exchange is performed. The heat transfer temperature difference is large, and more cooling capacity can be obtained.

(3) The dew point indirect-direct two-stage evaporative cooling air treatment process is adopted, and the temperature of the output air is close to the dew point temperature of the outdoor air.

(4) Make full use of the wet and cold air in the wet channel of the dew point indirect cooler, and send it into the conditioned space as the output air of the cooler. The air intake volume of the cooler is the air supply volume, which is greatly reduced compared with the traditional dew point indirect cooler Air consumption.

(5) The fins of the wet channel adopt a striated structure, which causes the air in the channel to be slightly turbulent, and at the same time increases the heat exchange area between the heat conduction wall and the medium in each flow channel, and strengthens the heat transfer between the air and the water film.

(6) Adopt intermittent water distribution, slightly excessive water supply can make the wall and fins be fully and evenly watered and retain almost the same amount of water, avoid any remaining dry spots, and ensure that the coating in the protruding device can be well wetted .

(7) Treat the fins in the wet channel and the surface of the wall that supports the heat exchange of the fins with a hydrophilic coating or cover the wet material, and a hydrophilic film will be formed on the fins and the wall, which effectively promotes the interaction between air and heat. Heat and moisture exchange of moisture.

(8) Attach a thermal insulation strip with low thermal conductivity to the wall of the channel, and the wall will form a temperature gradient in the direction of gas flow, which is conducive to expanding the gap between the output air in the dry channel and the working air in the wet channel. heat transfer temperature difference.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the air-conditioner of the utility model under the air intake type;

Fig. 2 is a schematic diagram of the core layout of the air-conditioner under the utility model embodiment;

Fig. 3 is a structural schematic diagram of an embodiment of the upper air supply type of the air conditioner of the present invention;

Fig. 4 is a schematic diagram of the layout of the core of the air-conditioning type embodiment of the utility model;

Fig. 5 is a schematic diagram of the airflow organization of the utility model air conditioner;

Fig. 6 is a schematic diagram of the dry channel structure of the indirect evaporative cooler in the air conditioner of the present invention;

Fig. 7 is a structural schematic diagram of the wet channel of the indirect evaporative cooler in the air conditioner of the present invention;

Fig. 8 is a schematic diagram of the arrangement of dry and wet passages of the indirect evaporative cooler in the air conditioner of the present invention.

In the figure, I is the direct evaporative cooler, and II is the indirect evaporative cooler

A ₁ is the outdoor air, A ₂ is the pre-cooling air, A ₃ is the working air, A ₄ is the damp cooling air, and A ₅ is the output air.

1. Wet channel, 2. Dry channel, 3. Wall plate, 4. Axial fan, 5. Water pump, 6. Water distributor, 7. Water collection tank, 8. Deflector, 9. Water retaining plate, 10. Groove, 11. insulation bar, 12. fin.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Two-stage evaporative air cooler that can reach the dew point temperature. The unit adopts a square structure, including direct evaporative cooler Ⅰ and indirect evaporative cooler Ⅱ. Under the action of the fan, the outdoor air passes through the wet cooling of the indirect evaporative cooler and the isenthalpy cooling of the direct evaporative cooler, and the final air temperature is close to the dew point temperature.

Fig. 1 and Fig. 2 show the embodiment of the air intake from the bottom of the evaporative air conditioner provided by the utility model. Four direct evaporative coolers Ⅰ enclose the outer wall of the unit, and the inner walls of the four direct evaporative coolers Ⅰ are respectively equipped with indirect evaporative coolers Ⅱ. The cavity surrounded by the four indirect evaporative coolers Ⅱ is the outdoor air A ₁ channel. The lower part of the cavity is provided with an axial flow fan 4, the upper part of the direct evaporative cooler I and the indirect evaporative cooler II is provided with a water distributor 6, the lower part of the direct evaporative cooler I and the indirect evaporative cooler II is provided with a water collection tank 7, and the water collection tank 7 communicates with the water pump 5 and the water distributor 6 respectively through pipelines.

The outdoor air _A1 enters from the bottom of the cooler under the positive pressure of the axial flow fan 4, first passes through the indirect evaporative cooler II for pre-cooling, and then passes through the direct evaporative cooler I for humidification and cooling, and finally forms output air whose temperature is close to the dew point temperature A ₅ , fed into the room from all sides of the cooler.

Fig. 3 and Fig. 4 show the embodiment of the upper air supply type of the evaporative air conditioner provided by the utility model. Four indirect evaporative coolers II surround the outer wall of the unit, and the inner walls of the four indirect evaporative coolers II are respectively equipped with direct evaporative coolers I, and the cavity surrounded by four direct evaporative coolers I is the output air A ₅ channel The upper part of the cavity is provided with an axial flow fan 4, the upper part of the direct evaporative cooler I and the indirect evaporative cooler II is provided with a water distributor 6, and the lower part of the direct evaporative cooler I and the indirect evaporative cooler II is provided with a water collection tank 7. The water tank 7 communicates with the water pump 5 and the water distributor 6 respectively through pipelines.

Compared with the embodiment of the bottom air intake type, this embodiment has the same working principle, except that the arrangement of the direct evaporative cooler I and the indirect evaporative cooler II is different. Under the negative pressure of the axial flow fan 4, the outdoor air A ₁ enters from the four sides of the cooler, first passes through the indirect evaporative cooler II for pre-cooling, and then passes through the direct evaporative cooler I for humidification and cooling, and produces an output whose temperature is close to the dew point temperature Air A ₅ , is fed into the space to be conditioned.

In this utility model,

The packing of the direct evaporative cooler Ⅰ adopts corrugated paper packing, and the thickness of the packing is 80mm ~ 120mm. The direct evaporative cooler Ⅰ makes full use of the relatively mature packing production and processing technology and structural characteristics.

The thickness of the indirect evaporative cooler II is 350mm~450mm, and it is composed of dry channels 2 and wet channels 1 arranged alternately. The material of the indirect evaporative cooler II is optimally selected based on the principles of high heat transfer efficiency, low cost, and convenient processing. Currently, plastic is used. The outdoor air A 1 in the dry channel 2 of the indirect evaporative cooler II and the working air _{A 3} in the wet channel 1 flow in opposite directions to each other, and conduct heat transfer through the wall plate 3, so there is a certain length in the flow direction, that is, the indirect The evaporator has a certain thickness in order to enhance the heat transfer between the outdoor air _A1 and the working air _A3 .

The water distributor 6 uses nozzles to supply water intermittently, the spray water wets the filler and the wet channel, and falls back to the sump 7, and the water pump 5 of the sump 7 supplies water to the water distributor 6 intermittently, except for a small part of the water that absorbs heat and turns into water Outside the steam, the water circulation in the sump 7 runs. Also can be provided with the float valve of control liquid level height and the drain valve that carries out regular automatic cleaning in the sump 7.

Fig. 5 shows a schematic diagram of the airflow organization of the air conditioner of the present invention. The outdoor air A ₁ first enters the dry channel 2 of the indirect evaporative cooler II, exchanges heat with the wall plates 3 on both sides, and is pre-cooled more deeply along the flow direction of the gas. The wall plate 3 is provided with heat insulation strips 11 with low thermal conductivity, so that the wall plate 3 forms a temperature gradient in the direction of gas flow, precools the outdoor air A ₁ step by step, and keeps the moisture content of the gas in the dry channel 2 unchanged.

The pre-cooled outdoor air A ₁ is divided into two parts at the end of the dry channel 1: one part as pre-cooled air A ₂ directly leaves the dry channel 1 and enters the direct evaporative cooler Ⅰ, and is humidified and cooled to produce an output whose temperature is close to the dew point temperature of the outdoor air The air A ₅ is sent into the space of the conditioned environment; the other part is used as the working air A ₃ and enters the wet channel through the bypass channel on the wall plate 3, and is humidified and cooled to form cold and humid air A ₄ , _which can be directly discharged outside. It can also be fed into the conditioned space as produced air. In the present utility model, the damp and cold air _A4 is fully utilized as the air supply of the cooler.

Fig. 6 shows a schematic structural diagram of the dry channel 2 of the indirect evaporative cooler II. Including the wall plate 3, the upper edge and the lower edge of the wall plate 3 are perpendicular to the wall plate 3, and the water barrier 9 is respectively arranged, which isolates the direct contact with the water, and avoids the spray water of the water distributor 6 and the splash of the water collection tank 7 The raised water flows into the dry channel. On the wall plate 3, a number of heat insulation strips 11 are arranged at intervals perpendicular to the air flow phase, and fins 12 are arranged on the wall plate 3 and between adjacent heat insulation strips 11. The fins 12 adopt a rectangular corrugated shape, and each wave shape The top surrounds a cavity, which is an air channel and the length of the cavity is consistent with the direction of air flow. There are two groups of grooves 10 on the fins 12, and each group of grooves 10 forms a louver-shaped structure, and the two groups The openings of the slots 10 are facing oppositely.

Fig. 7 shows a schematic structural diagram of the wet channel 1 of the indirect evaporative cooler II. Including wall plate 3, one side of wall plate 3 is vertically connected with deflector 8 with wall plate 3; A fin 12 coated with a hydrophilic coating is arranged between the insulation strips 11. The fin 12 adopts a rectangular corrugated shape, and each corrugated top forms a cavity, which is an air channel and the length of the cavity is the same as the The direction of air flow is the same, two sets of slots 10 are opened on the fins 12 , each set of slots 10 forms a louver-shaped structure, and the openings of the two sets of slots 10 face opposite directions.

The working air _A3 with a lower reference temperature is in direct contact with the water film on the surface of the fin 12 and the wall plate 3. The water film absorbs the heat on the other side of the wall plate 3, and changes from liquid water to gaseous water vapor by evaporation, reducing the temperature of the wall plate. 3 temperature while increasing the humidity content of the working air A ₃ . Therefore, the humid cold air A ₄ with lower temperature and higher relative humidity is formed at the end of wet channel 1 .

The deflector 8 provided in the wet channel 1 makes the wet and cold air A ₄ pass through the deflector 8 to convert the airflow moving in the horizontal direction into a vertically downward airflow, and then enter the filler through the space above the water collection tank 7 at the bottom of the cooler, further After cooling and humidifying, it is sent to the conditioned space.

The dry channel 2 and the wet channel 1 of the indirect evaporative cooler II use fins 12 with a rectangular corrugated structure. It is connected to one side of the wall plate 3 and plays the role of supporting the thickness of the channel. The rectangular corrugated structure, on the one hand, increases the heat exchange area between the heat conduction wall and the medium in each flow channel, and strengthens the heat transfer; on the other hand, the fins cause turbulence of the air in the channel, destroying the thermal boundary of the gas layers to enhance heat transfer.

The fins 12 have slots 10, the holes being embodied as elongated slots. These slots are not stamped, but formed by making cuts in a stamping machine and extruding the flap material from the main plane of the surrounding surface, so that a louvered structure is produced. The opening of the slot 10 on the same vane is opposite, and the louvers are arranged so that the airflow is intercepted by the louvers and turned to the other side of the vane, and the diverted airflow is intercepted by the opposite louvers and at least resumes its original path. This structure causes turbulent flow of the gas, which results in better heat transfer between the gas and the fins, and combined with the optimum air velocity, high efficiency of the indirect cooler can be obtained.

Figure 8 shows the layout of the wet channel 1 and dry channel 2 of the indirect evaporative cooler II. Dry channels 2 and wet channels 1 are alternately arranged at intervals, that is, both sides of wet channel 1 are dry channels 2, and both sides of dry channel 2 are wet channels 1.

The direct evaporative cooler I of the air conditioner of the utility model adopts corrugated paper packing, and the indirect evaporative cooler II adopts a countercurrent structure, that is, the flow direction of the output air is opposite to that of the working air, and the countercurrent heat exchange is performed, and the heat exchange temperature difference is relatively high. , so the counter-flow type can obtain more cooling capacity than the cross-flow type, and the indirect-direct two-stage evaporative cooling can provide air whose temperature is close to the dew point temperature.

The water distributor 6 adopts an intermittent water distribution method to cover the wall plate 3 and the fins 12 with a layer of water film instead of a flowing water column. On the one hand, if the amount of spraying water is too much, a large water column will be formed on the wall of wet channel 1, blocking the flow of working air _A3 in wet channel 1; on the other hand, if the amount of spraying water is too small, some walls will not be able to wet Moisture creates dry spots, and local temperature differences can cause poor heat flow and affect the efficiency of the cooler. A slight oversupply of water allows the panels 3 and fins 12 to be sufficiently evenly watered and retain almost the same amount of water, avoiding any remaining dry spots and ensuring good wetting of the coating in the protruding means.

The surface of the fins 12 and the wall plate 3 that supports the heat exchange of the fins 12 is treated with a hydrophilic coating or covered with wet materials. The water film formed on the surface is enough to evaporate in the cycle of intermittent water distribution, which is beneficial to air and water. heat and moisture exchange. The coating or covering is so thin that the thermal resistance is negligible, and the heat transfer between the medium in the dry channel and the medium in the wet channel is hardly affected by it.

The output air of dry channel 2 flows in the opposite direction to the working air of wet channel 1, and it is necessary to ensure that the flow channel has a certain length to ensure the heat transfer between the two. Attach heat insulating strips 11 with low thermal conductivity on the wall of the channel, and the wall plate 3 forms a temperature gradient in the direction of gas flow, which is conducive to expanding the heat exchange between the output air in the dry channel and the working air in the wet channel temperature difference.

Although the dew point indirect evaporative cooling has a large temperature drop, it has not yet dropped to the dew point temperature of the outdoor air, and the output air enters the direct evaporative cooler for further cooling and humidification. The indirect-direct two-stage evaporative cooling process of the utility model makes The temperature of the produced air approaches the dew point temperature of the outside air.

The temperature of the working air in the wet channel of the indirect evaporative cooler is lower and the humidity is higher after heat and moisture exchange with water. The dew-point indirect evaporative coolers of the prior art do not make full use of this damp and cold air, and directly discharge it into the atmosphere. The utility model also uses this wet and cold air as air supply to reduce the temperature of the regulated room. Therefore, the air intake volume of the cooler is equal to the air supply volume, which greatly reduces the air consumption.

Claims (10)

1. can reach the double-level evaporation-type air conditioner of dew-point temperature; It is characterized in that; Unit adopts the tetragonal body structure; Four direct evaporative coolers (I) surround the outside wall surface of unit, and the inwall of four direct evaporative coolers (I) is respectively arranged with indirect evaporation cooler (II), and the cavity that four indirect evaporation coolers (II) surround is outdoor air (A ₁) passage; The bottom of this cavity is provided with axial flow blower (4); The top of direct evaporative cooler (I) and indirect evaporation cooler (II) is provided with water-locator (6); The bottom of direct evaporative cooler (I) and indirect evaporation cooler (II) is provided with water leg (7), and water leg (7) is connected with water pump (5) and water-locator (6) respectively through pipeline.

2. according to the described vaporation-type air conditioner of claim 1, it is characterized in that the filler of said direct evaporative cooler (I) adopts corrugated papery filler, depth of packing is 80 mm ~ 120mm.

3. according to the described vaporation-type air conditioner of claim 1, it is characterized in that the thickness of said indirect evaporation cooler (II) is 350 mm ~ 450mm, form by dry passage (2) and wet channel (1) that alternate intervals is provided with.

4. according to the described vaporation-type air conditioner of claim 3; It is characterized in that the structure of said dry passage (2) is: comprise wallboard (3), the perpendicular water fender (9) that is respectively arranged with of the upper edge of wallboard (3) and lower edge and wallboard (3); Wallboard (3) is gone up, the vertical some heat insulating strips (11) that are arranged at intervals with respectively with air flowing phase; Wallboard (3) is gone up, be provided with the fin (12) that applies hydrophilic coating between the adjacent heat insulating strip (11), and fin (12) adopts rectangle corrugated, and each waveform top surrounds a cavity; This cavity is that the length of air duct and cavity is to consistent with air-flow direction; Have two groups of grooves (10) on the fin (12), every group of groove (10) forms a blinds template structure, and the opening of two groups of grooves (10) is towards on the contrary.

5. according to the described vaporation-type air conditioner of claim 3; It is characterized in that the structure of said wet channel (1) is: comprise wallboard (3), the perpendicular deflector (8) that is connected with of a side of wallboard (3) and wallboard (3); Wallboard (3) is gone up, the vertical some heat insulating strips (11) that are arranged at intervals with respectively with air flowing phase; Wallboard (3) is gone up, be provided with the fin (12) that applies hydrophilic coating between the adjacent heat insulating strip (11), and fin (12) adopts rectangle corrugated, and each waveform top surrounds a cavity; This cavity is that the length of air duct and cavity is to consistent with air-flow direction; Have two groups of grooves (10) on the fin (12), every group of groove (10) forms a blinds template structure, and the opening of two groups of grooves (10) is towards on the contrary.

6. can reach the double-level evaporation-type air conditioner of dew-point temperature; It is characterized in that; Unit adopts the tetragonal body structure; Four indirect evaporation coolers (II) surround the outside wall surface of unit, and the inwall of four indirect evaporation coolers (II) is respectively arranged with direct evaporative cooler (I), and the cavity that four direct evaporative coolers (I) surround is output air (A ₅) passage; The top of this cavity is provided with axial flow blower (4); The top of direct evaporative cooler (I) and indirect evaporation cooler (II) is provided with water-locator (6); The bottom of direct evaporative cooler (I) and indirect evaporation cooler (II) is provided with water leg (7), and water leg (7) is connected with water pump (5) and water-locator (6) respectively through pipeline.

7. according to the described vaporation-type air conditioner of claim 6, it is characterized in that the filler of said direct evaporative cooler (I) adopts corrugated papery filler, depth of packing is 80 mm ~ 120mm.

8. according to the described vaporation-type air conditioner of claim 6, it is characterized in that the thickness of said indirect evaporation cooler (II) is 350 mm ~ 450mm, form by dry passage (2) and wet channel (1) that alternate intervals is provided with.

9. according to the described vaporation-type air conditioner of claim 8; It is characterized in that the structure of said dry passage (2) is: comprise wallboard (3), the perpendicular water fender (9) that is respectively arranged with of the upper edge of wallboard (3) and lower edge and wallboard (3); Wallboard (3) is gone up, the vertical some heat insulating strips (11) that are arranged at intervals with respectively with air flowing phase; Wallboard (3) is gone up, be provided with the fin (12) that applies hydrophilic coating between the adjacent heat insulating strip (11), and fin (12) adopts rectangle corrugated, and each waveform top surrounds a cavity; This cavity is that the length of air duct and cavity is to consistent with air-flow direction; Have two groups of grooves (10) on the fin (12), every group of groove (10) forms a blinds template structure, and the opening of two groups of grooves (10) is towards on the contrary.

10. according to the described vaporation-type air conditioner of claim 8; It is characterized in that the structure of said wet channel (1) is: comprise wallboard (3), the perpendicular deflector (8) that is connected with of a side of wallboard (3) and wallboard (3); Wallboard (3) is gone up, the vertical some heat insulating strips (11) that are arranged at intervals with respectively with air flowing phase; Wallboard (3) is gone up, be provided with the fin (12) that applies hydrophilic coating between the adjacent heat insulating strip (11), and fin (12) adopts rectangle corrugated, and each waveform top surrounds a cavity; This cavity is that the length of air duct and cavity is to consistent with air-flow direction; Have two groups of grooves (10) on the fin (12), every group of groove (10) forms a blinds template structure, and the opening of two groups of grooves (10) is towards on the contrary.

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