JP2013224813A - Spot air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spot air conditioner which exhibits excellent performances corresponding to functions of cold air, warm air, dehumidification, cool breeze, humidified warm air and air distribution.SOLUTION: A housing 2 is formed with an air inlet port on a front and incorporates an air conditioning unit which includes: a compressor 4; a condenser 5; an evaporator 6; and air distribution fans 7, 8 for the condenser and evaporator. The housing includes a sprinkling evaporation unit which is composed of: a front evaporation element 16 and a rear evaporation element 17 arranged on both sides so as to interpose the condenser 5; a water sprinkler 18 which sprinkles water on the condenser 5 from above; a water tank 19 which is arranged below the condenser 5 and both the evaporation elements 16, 17 and receives flow-down drainage from a condensed water drain pan 9 arranged below the evaporator 6; and a water sprinkler pump 20 which circulates and supplies water in the water tank 19 to the water sprinkler 18. The blow out ports 12a, 14a of air passages 12, 14 are provided with cylindrical air blowing guides 13, 15 which can adjust the direction of opening.

Description

  The present invention relates to a spot air conditioner that can freely select functions of cold air, hot air, dehumidification, cool air, humidified hot air, and air blowing, and blows out the selected air in a spot manner.

  In a work site such as a factory where the ceiling is high and the temperature tends to be high or low, a simple spot air conditioner that locally blows cold air or hot air is often used. Further, such a conventional spot air conditioner has a configuration as shown in FIG. In FIG. 21, reference numeral 100 denotes a spot air conditioner. An air intake hole 101 a is provided in the front surface, and a housing 101 whose interior is divided into two stages, a compressor 102, a condenser 103, an evaporator 104, and the condenser 103 and the evaporator 104. An air conditioning unit including each of the blower fans 105 and 106 is incorporated. Further, a condensed water drain pan 107 is disposed below the evaporator 104 so that the received water flows down naturally into a water tank 108 disposed below the condenser 103.

  In such a spot air conditioner 100, the air heated by the condenser 103 is blown out as a hot air from the cylindrical air guide 111 provided in the air outlet 110 through the passage 109 by the air blower fan 105 and cooled by the evaporator 104. The air is blown out as cold air from the cylindrical air guide 114 provided at the air outlet 113 through the passage 112 by the air blowing fan 106. In FIG. 21, reference numeral 115 denotes a pipe for constituting the refrigeration cycle, and 116 denotes an expansion valve.

  Moreover, the thing similar to the said prior art example is also shown by patent document 1 and patent document 2, for example. However, since all of them are composed only of an air conditioning unit including a compressor, a condenser, an evaporator, and a blower fan for the condenser and the evaporator, they do not have functions such as cool air, humidified warm air, and air blowing. Improvement of such a point has been desired as a spot air conditioner. In addition, since exhaust heat is released from the back of the condenser during cold air operation, and warm air is released indoors by a blower fan, the amount of heat that is cooled by the evaporator, except where the spot air conditioner is exposed to cold air However, there was a problem that the exhaust temperature was high and the environment was further deteriorated.

JP 2006-226484 A Utility Model Registration No. 2539086

  The present invention has been made in view of the above points, and by providing a water vaporization unit in addition to a conventional air conditioning unit, in addition to cold air, hot air, dehumidification, all functions such as cool air, humidified hot air, and air blowing can be achieved. It is an object of the present invention to provide a spot air conditioner that can be freely selected and is energy-saving and that can obtain the best air conditioning performance according to each function.

  Therefore, the gist (1) of the present invention is that the condenser is provided in a housing in which an air intake hole is provided on the front surface and an air conditioning unit including a compressor, a condenser, an evaporator, and each blowing fan for the condenser and the evaporator is incorporated. A front vaporization element and a back vaporization element arranged on both sides so as to sandwich the front vaporization element, either the front vaporization element or the back vaporization element, or a sprinkler for sprinkling these and the condenser from above, and the condenser A water tank that is disposed under the front vaporization element and the back vaporization element, stores a predetermined amount of water, and receives the drainage from the condensed water drain pan disposed under the evaporator, and circulates the water in the water tank to the water sprayer A water vaporizing unit comprising a watering pump to be supplied, and The outlet of each air passage communicating with the fan, is in the spot air conditioner which is characterized in that a the tubular air guide and adjustable aperture orientation.

  In the above configuration, the capacitor, the front vaporization element, and the back vaporization element may be incorporated into the frame-shaped holder.

  Further, the gist (2) of the present invention is that an air intake hole is provided in the front surface, and the condenser is sandwiched in a housing in which an air conditioning unit including a compressor, a condenser, an evaporator, and each fan for the condenser and the evaporator is incorporated. The front vaporization element and the back vaporization element arranged on both sides, the front vaporization element and / or the back vaporization element, or a sprinkler for sprinkling these and the condenser from above, the condenser and the front vaporization A water tank that is disposed below the element and the back vaporizing element, stores a predetermined amount of water, and receives a drained drainage from a condensed water drain pan disposed below the evaporator, and circulates and supplies the water from the water tank to the watering device. A watering and vaporizing unit comprising a watering pump, and the housing An air supply chamber into which the air to be used flows and an exhaust chamber into which the air not to be used are placed on top of each other, with the former facing down or up and the latter facing up or down, respectively, for the condenser and the evaporator. An air passage communicating with the blower fan is connected to the bottom of the exhaust chamber or the supply chamber through the supply chamber or the exhaust chamber, and the air passage penetrates the supply chamber or the exhaust chamber. An air passage port is provided on the same or opposite side of the front surface of the housing in the portion, and further, the air passage is provided in each of the exhaust chamber or the bottom of the exhaust chamber, and in each of the air passages. An air flow path switching damper that alternately shuts off the air passage port at an appropriate timing is provided, and further, the air supply chamber is emptied. Outlet, while provided on the front side of the housing, an air outlet of the exhaust chamber is in a spot air conditioner characterized by comprising providing the location of the different side from said air supply chamber of the air outlet.

  In the above configuration, a louvered air blowing grill for adjusting the wind direction may be attached to the air discharge port of the air supply chamber.

  In the above configuration, a cylindrical air guide may be provided at the air discharge port of the supply chamber and / or the air discharge port of the exhaust chamber.

  In the above configuration, the temperature and humidity of the intake air are measured with a temperature sensor and a humidity sensor arranged between the air intake hole on the front surface of the housing and the front vaporizing element, and the measured temperature and humidity of the measured air and optionally An optimum air cooling operation mode may be determined from the set supply air temperature and evaporative cooling efficiency, and an operation mode automatic control device that automatically switches the operation mode may be provided.

  Since the present invention is configured as described above and includes a water spray vaporizing unit in addition to the conventional air conditioning unit, it can freely select all functions such as cool air, hot air, dehumidified air as well as cool air, hot air, and air blowing. It is possible to do. In addition, the temperature of the condenser can be lowered by the water spraying function especially during the cold wind operation, energy saving can be achieved to reduce the load on the compressor, and the temperature rise of the exhaust gas can be significantly suppressed. Furthermore, energy can be significantly reduced by a cool air function that can lower the temperature of the air with latent heat of vaporization when the compressor is stopped.

It is a schematic explanatory drawing of the spot air conditioner which concerns on 1st Embodiment of this invention. It is action | operation explanatory drawing of this invention, and shows the state of a dehumidification and a circular operation mode. It is action | operation explanatory drawing of this invention, and shows the state of heating and vaporization humidification operation mode. FIG. 5 is a diagram for explaining the operation of the present invention, and shows the state of the cooling and condenser vaporization cooling operation mode. It is explanatory drawing of the watering effect | action to a front vaporization element and a back vaporization element. It is explanatory drawing of the watering in case a capacitor | condenser is a heat exchange fin which is easy to corrode. It is explanatory drawing of watering when a capacitor | condenser is a corrosion-resistant heat exchange fin. It is a schematic explanatory drawing of the spot air conditioner which concerns on 2nd Embodiment of this invention, and shows the state which blows off cold air from the air discharge port of an air supply chamber. It is a cross-sectional top view of the same air supply chamber. It is a cross-sectional plan view of the same exhaust chamber. It is a schematic explanatory drawing of the spot air conditioner which concerns on 2nd Embodiment of this invention, and shows the state which blows off warm air from the air discharge port of an air supply chamber. It is a cross-sectional top view of the same air supply chamber. It is a cross-sectional plan view of the same exhaust chamber. It is a schematic explanatory drawing of the spot air conditioner which concerns on 3rd Embodiment of this invention, and shows the state which blows off cold air from the air discharge port of an air supply chamber. It is a cross-sectional top view of the same air supply chamber. It is a cross-sectional plan view of the same exhaust chamber. It is a schematic explanatory drawing of the spot air conditioner which concerns on 4th Embodiment of this invention, and shows the state which blows off cold air from the air discharge port of an air supply chamber. It is a cross-sectional top view of the same air supply chamber. It is a cross-sectional plan view of the same exhaust chamber. It is a schematic explanatory drawing of the spot air conditioner which concerns on 5th Embodiment of this invention, and shows the state which blows off cold air from the air discharge port of an air supply chamber. It is a schematic explanatory drawing of the conventional spot air conditioner. It is explanatory drawing of the structure which flows down the condensed water from the evaporator in the spot air conditioner shown by patent document 2 to the evaporator which arrange | positioned between two capacitors.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  In the figure, 1 is a spot air conditioner. Reference numeral 2 denotes a housing in the spot air conditioner 1, and an air intake hole 3 is provided on the front surface. The housing 2 is divided into two upper and lower stages. 4 is a compressor installed in the lower stage of the housing 2, 5 is a condenser installed in the lower stage of the housing 2, 6 is an evaporator installed in the upper stage of the housing 2, and 7 and 8 are upper stages in the housing 2. These are blower fans installed in the lower stage, and these constitute an air conditioning unit, which is built in the housing 2.

  Reference numeral 9 denotes a condensed water drain pan disposed at the lower portion of the evaporator 6, and the water received therein is discharged from the drain port 10 through a pipe 11 to a water tank disposed at the lower portion of the condenser 5 and the like.

  Reference numeral 12 denotes a passage of air sent out by the blower fan 7. Reference numeral 13 denotes a cylindrical air guide that is provided at the outlet 12a of the passage 12 so that the direction of the opening can be adjusted. Reference numeral 14 denotes a passage for air sent out by the blower fan 8. Reference numeral 15 denotes a cylindrical air guide that is provided at the outlet 14a of the passage 14 so that the direction of the opening can be adjusted.

  Reference numerals 16 and 17 denote a front vaporizing element and a back vaporizing element arranged on both sides so as to sandwich the capacitor 5. Reference numeral 18 denotes a sprinkler for sprinkling water from the top of the front vaporizing element 16 and / or the back vaporizing element 17 or both of them and the condenser 5. The watering device 18 is provided with watering nozzles 18 a and 18 a at positions just above the front vaporizing element 16, the back vaporizing element 17 and the condenser 5, respectively.

  Reference numeral 19 denotes a water tank disposed below the condenser 5, the front vaporizing element 16 and the back vaporizing element 17 for storing a predetermined amount of water and receiving the drained drainage from the condensed water drain pan 9. A watering pump 20 circulates and supplies the water in the water tank 19 to the water sprinkler 18. With these, a water vaporization unit is configured and provided in the housing 1. Reference numeral 21 denotes a frame holder in which the capacitor 5 and the front vaporizing element 16 and the back vaporizing element 17 are integrated. In addition, 22 is a pipe for constituting the refrigeration cycle, 23 is an expansion valve, and 24 is a pipe for circulating and supplying water.

Next, the operation of the present embodiment will be described.
First, the ventilation and the circulating operation mode will be described.
If both the blower fan 7 and the blower fan 8 are operated independently in a state where both the compressor 4 and the water spray pump 20 are stopped, unprocessed wind blows out from the cylindrical blower guides 13 and 15, and the blower mode (It becomes two sets of blowers.) At this time, if the cylindrical air guides 13 and 15 are directed in different directions, a circulator is obtained.

Next, the cold air and hot air operation modes will be described.
In the cold air operation mode, the compressor 4 is operated, the air is cooled by the evaporator 6 and sent out by the blower fan 8, the cylindrical blower guide 15 is directed to the target, and the condenser 5 and the blower fan 7 are heated. The cylindrical air guide 13 from which the warm air blows out is directed in a different direction from the outside or the cylindrical air guide 15.

  In the warm air operation mode, in contrast to the above, the cylindrical air guide 13 is directed to the target, and the cylindrical air guide 15 is directed to the outside or the direction different from the cylindrical air guide 13. To do.

Next, the cool wind operation mode will be described.
In the case of the cool wind operation mode, the water spray pump 20 is operated in a state where the compressor 4 is stopped, and the water in the water tank 19 is caused to flow down from the nozzles 18a and 18a of the water sprayer 18 to vaporize the front vaporization element 16 and the back vaporization. The element 17 is sprinkled with water and the air is evaporated to cool the air. And it blows off from the cylindrical ventilation guide 13 with the ventilation fan 7. FIG. Further, when water is vaporized by the front vaporization element 16 and the back vaporization element 17 in this way, since water vapor is generated by evaporation, there is no scale generation in the condenser 5 even if the supplied water is groundwater containing impurities. The progress of aluminum fin corrosion due to salt damage near the coast can also be reduced.

Next, the dehumidifying operation mode will be described.
In the dehumidifying operation mode, as shown in FIG. 2, all other members are operated in a state where the watering pump 20 is stopped. In this case, the operation is the same as that of a normal spot air conditioner. is there. And if the cylindrical air guide 13 and the cylindrical air guide 15 are made the same direction and hot air and cold air are mixed, it will be in a dry driving | running state and will be dehumidified only by the part drained from the condensed water drain pan 9 to the water tank 19. It will be.

Next, the humidified hot air operation mode will be described.
In the humidified hot air operation mode, as shown in FIG. 3, the watering pump 20 is operated so that the water vaporizing function is simultaneously performed with the hot air by the condenser 5. In this case, it is possible to perform humidification by evaporating water on the surface of the front vaporizing element 16 by watering, and the temperature rises when passing through the high-temperature condenser 5 and the saturated water vapor pressure increases. Since the air can be further humidified by the back vaporizing element 17, more humidification can be performed. Therefore, it is possible to easily prevent overdrying during humidified warm air, and comfort is improved. Further, in this case, warm air humidified from the cylindrical air guide 13 is blown out.

Next, the combined mode of the vaporizing function in the cold air operation mode will be described.
In this case, as shown in FIG. 4, the watering pump 20 is operated to simultaneously operate the watering and vaporizing function simultaneously with the cold air generated by the evaporator 6. That is, the cooling effect by which the temperature of room air falls by the cooling effect by the evaporative latent heat of water by making it the surface of water by watering to the front vaporization element 16 arrange | positioned in front of the capacitor | condenser 5 at the time of the cold wind operation by the evaporator 6 is carried out. The cooling effect can be further improved. In this case, the high-temperature and high-pressure refrigerant gas in the condenser 5 pressurized by the compressor 4 can be efficiently cooled to promote liquefaction. Further, by sprinkling water directly onto the condenser 5 itself at the same time as spraying the front vaporizing element 16, a greater effect can be obtained.

  In addition, as a result of efficient cooling as described above, the liquefaction of the refrigerant gas in the condenser 5 is promoted, so that the discharge pressure of the compressor 4 is reduced. Therefore, the load on the compressor 4 is reduced, and the energy for driving it can be reduced.

  As shown in the figure, in the configuration in which the condenser 5 and the evaporator 6 are connected in series and the refrigerant liquid is supplied from the condenser 5 to the evaporator 6, the refrigerant supplied from the condenser 5 to the evaporator 6 by the vaporization function. Since the supply amount of the liquid increases, the cooling capacity is further improved. Further, the air whose temperature has risen after passing through the condenser 5 is further cooled by the latent heat of evaporation of water sprayed on the rear vaporizing element 17 disposed thereafter, and is discharged in that state. Adverse effects can be reduced.

Next, a further specific example of the operation of the above embodiment will be described.
Assuming that the indoor air passing through the heat exchange fins of the condenser 5 has a dry bulb temperature of 35 degrees, a relative humidity of 60%, and an air volume of 10 cubic meters / minute, when evaporative cooling is employed, the cooled air is 5 at the heat exchange fin position, the dry bulb temperature is 28.4 degrees, the relative humidity is 97.9%, and the inlet dry bulb temperature of the cooled air that exchanges heat with the condenser 5 is 35-28.4 = 7.6 degrees. The amount of heat transfer increases as the temperature difference decreases and the temperature difference increases. Assuming that 2.2 Kw heat exchange with the air passing through the condenser 5 is performed, the temperature and humidity of the air passing through the condenser 5 is a dry bulb temperature of 46.5 degrees and a relative humidity of 33%. If the form of the cold air evaporation function is adopted, the temperature and humidity of the exhaust gas are about 33 degrees dry bulb temperature, 86% relative humidity, and 10 cubic meters / minute of air flow, and the rise in the exhaust gas temperature is greatly mitigated. If the humidity is lower, the temperature difference becomes larger, and both energy saving and exhaust temperature decrease can be realized.

  In the cool air operation without operating the compressor 4, the indoor air is at a dry bulb temperature of 35 degrees, a relative humidity of 60%, an air volume of 10 cubic meters / minute, and a dry bulb temperature of 28.4 degrees, a relative humidity of 97.9%, and an air volume of 10. It can be used as a cool air fan for cubic meters / minute, and only the electric power of a fan motor (not shown) and the watering pump 20 saves energy by the amount of electric power of the compressor 4 that is unnecessary. However, if the indoor humidity is high, it is difficult to evaporate, and the evaporative cooling effect is reduced. Therefore, when further cooling is desired, the compressor 4 is operated to enter the cold air operation mode, and in the present invention, it can be used properly. .

  Further, in the present invention, as shown partially enlarged in FIG. 5, the front vaporizing element 16 and the back vaporizing element 17 are arranged on both sides so as to sandwich the capacitor 5, and the water sprayer 18 is combined in a predetermined combination with these. Although watering by the watering nozzles 18a and 18a is performed, the configuration shown in FIG. 22 is described in Patent Document 2 in relation to this, so this point will be described.

  In the configuration shown in FIG. 22, a evaporator 119 is disposed between two condensers 117 and 118, and condensed water generated in the evaporator 120 is caused to flow down to the evaporator 119 via a passage 121. The condensed water that has flowed down is evaporated by the hot air of the condenser 117. The effect by this is that a drain tank and a drain outlet can be made unnecessary.

  According to such a configuration, room air passes through the condensers 117 and 118 and the evaporator 119 through which condensed water flows down. However, the condensed water generated in the evaporator 120 is only supplied from a small portion of the water vapor in the room air, and there is a limit to the supply of water. In addition, due to its structure, it cannot be expected to have an effect of suppressing the exhaust temperature using the latent heat of vaporization of water, or an effect of merely lowering the capacitor temperature. In the end, the configuration shown in FIG. 22 cannot achieve the same effect as the configuration according to the present invention.

  Further, in the present invention, the front vaporizing element 16 and the back vaporizing element 17 are arranged on both sides so as to sandwich the capacitor 5, and water is sprayed by the water spray nozzles 18a and 18a of the water sprayer 18 in a predetermined combination. The condenser 5 adopts an aluminum heat exchange fin which is easily corroded as shown in FIG. 6 and a condenser 5 which adopts a copper heat exchange fin having corrosion resistance as shown in FIG. Yes. That is, in the case shown in FIG. 6, watering to the condenser 5 is not performed (in this case, the watering nozzle 18a is not provided immediately above the condenser 5 of the watering device 18, or a blind cap is attached even if it is provided). In addition, in the case shown in FIG. 7, water is sprayed to the condenser 5 together with water sprayed to the front vaporizing element 16 and the back vaporizing element 17 (in this case, immediately above the condenser 5 of the water sprayer 18). Also, the watering nozzle 18a is provided, or the watering nozzles 18a, 18a on both sides can be rotated inwardly).

  Further, when the capacitor 5 and the front vaporizing element 16 and the back vaporizing element 17 are incorporated in the frame-shaped holder 21, the distance between the capacitor 5 and the front vaporizing element 16 and the back vaporizing element 17 is kept constant. In addition, it is possible to prevent a negative short circuit caused by the blower fan 7 of the water spray nozzles 18a and 18a. Furthermore, when water is not sprayed on the condenser 5 as shown in FIG. 6, water is splashed on the condenser 5 even if water is scattered by the air flow generated by the water spraying on the front vaporizing element 16 and the back vaporizing element 17. Can be prevented. Although not shown in the figure, scattering prevention plates may be installed on both sides of the capacitor 5 instead of the frame-shaped holder 21.

  Next, a second embodiment of the present invention shown in FIGS. 8 to 13 will be described.

  In the present embodiment, an air intake hole 3 is provided in the front surface, and a housing 2 including an air conditioning unit including a compressor 4, a condenser 5, an evaporator 6 and air blowing units 7 and 8 for the condenser 5 and the evaporator 6, The front vaporizing element 16 and the back vaporizing element 17 arranged on both sides so as to sandwich the capacitor 5, and / or the front vaporizing element 16 and / or the back vaporizing element 17, or these and the condenser 5 are sprinkled from above. The water sprayer 18, and the condenser 5, the front vaporization element 16 and the back vaporization element 17, which stores a predetermined amount of water and flows down from the condensed water drain pan 9 disposed below the evaporator 6. Receiving water tank 19 and circulating supply of water from water tank 19 to water sprinkler 18 That it comprises a water spray vaporizing unit consisting of that sprinkler pump 20. is the same as the first embodiment. Since the other constituent members are the same, the same members are denoted by the same reference numerals and detailed description thereof is omitted.

  Thus, the difference between the present embodiment and the first embodiment is that the cylindrical air guides 13 and 15 are provided at the outlets of the air passages 12 and 14 communicating with the air fans 7 and 8 in the first embodiment. However, in the present embodiment, the following configuration is substituted for this.

  That is, in the present embodiment, an upper portion of the housing 2 is provided with an air supply chamber 25 into which air to be used flows and an exhaust chamber 26 into which air to be used flows in, with the former on the bottom and the latter on the top, Air passages 12, 14 communicating with the blower fans 7, 8 for the condenser 5 and the evaporator 6 are connected to the bottom of the exhaust chamber 26 through the air supply chamber 25, and the air passage 12, 14 are provided with air passage openings 12a 'and 14a' on the same side as the front surface of the housing 2 in the through portion of the air supply chamber 25, and the exhaust chambers of the air passages 12 and 14 are provided. 26, the openings 12b and 14b to the bottom of the air passages 12 and the air passages 12a 'and 14a' provided in the air passages 12 and 14, respectively, are alternately connected with appropriate ties. Air flow switching dampers 27 and 28 that are blocked by the air flow, and the air discharge port 25A of the air supply chamber 25 is provided on the front side of the housing 2, while the air discharge port 26A of the exhaust chamber 26 is The air supply chamber 25 is provided at a position different from the air discharge port 25A. The switching operation of the air flow path switching dampers 27 and 28 may be performed manually or automatically, but is preferably switched automatically according to the operation mode.

  In the present embodiment, the air discharge port 26A of the exhaust chamber 26 is located on the rear surface side of the housing 2, and a louvered air blowing grill 29 for adjusting the wind direction is provided at the air discharge port 25A of the air supply chamber 25. It is attached. Further, on the outside of the surface of the air passage 14 that passes through the air supply chamber 25 that faces the air passage 12, an air rectifying plate 30 that has a plane triangular shape that distributes the air blown from the air passage 12a 'in the air passage 12 to the left and right. Is attached.

Next, the operation of this embodiment will be described.
8 to 10 show a case where cool air is blown out from the air discharge port 25A of the air supply chamber 25. In such a case, the air passage port 14a 'of the air passage 14 is opened and the air passage 14 is exhausted. The opening 14 b to the bottom of the chamber 26 is blocked by the air flow path switching damper 28, while the air passage port 12 a ′ of the air passage 12 is blocked by the air flow path switching damper 27 and the bottom of the exhaust chamber 26 of the air path 12. The opening 12b is opened.

  As a result, the air cooled by the evaporator 6 flows into the air supply chamber 25 from the air passage 14 and is discharged from the air discharge port 25A to the front side of the housing 2. Further, the adjustment of the wind direction is performed with the louver of the air blowing grill 29 with a louver for adjusting the wind direction. On the other hand, the air heated by the condenser 5 flows into the exhaust chamber 26 from the air passage 12 and is discharged to the rear surface side of the housing 2 from the air discharge port 26A.

  11 to 13 show a case where hot air is blown from the air discharge port 25A of the air supply chamber 25. In such a case, the air passage 12a 'of the air passage 12 is opened and the air passage is opened. 12, the opening 12 b to the bottom of the exhaust chamber 26 is blocked by the air flow path switching damper 27, while the air passage opening 14 a ′ of the air passage 14 is blocked by the air flow path switching damper 28, and the exhaust chamber of the air path 14 The opening 14b to the bottom of 26 is opened.

  Thereby, the air warmed by the condenser 5 flows into the air supply chamber 25 from the air passage 12 and is discharged to the front side of the housing 2 from the air discharge port 25A. On the other hand, the air cooled by the evaporator 6 flows into the exhaust chamber 26 from the air passage 14 and is discharged to the rear surface side of the housing 2 from the air discharge port 26A.

  Next, a third embodiment of the present invention shown in FIGS. 14 to 16 will be described.

  This embodiment is the same as the second embodiment in the basic configuration. Thus, the difference between the present embodiment and the second embodiment is that the air discharge port 26A of the exhaust chamber 26 is positioned on the upper surface side of the housing 2 in the present embodiment. Further, in the present embodiment, a cylindrical air guide 31 is provided at the air outlet 26A in order to guide the exhaust to a position that does not impair the surrounding comfort. In addition, since the other structure and effect | action are the same as that of the said 2nd Embodiment, the same code | symbol is attached | subjected to the same member and detailed description is abbreviate | omitted.

  Next, a fourth embodiment of the present invention shown in FIGS. 17 to 19 will be described.

  The present embodiment is the same as the third embodiment in the basic configuration. Thus, the difference between the present embodiment and the third embodiment is that, in this embodiment, the air discharge grille with louver for adjusting the wind direction is not attached to the air discharge port 25A of the air supply chamber 25. Instead of this, a cylindrical air guide 32 for guiding the air supply to a predetermined place is provided. In addition, since the other structure and effect | action are the same as that of the said 3rd Embodiment, the same code | symbol is attached | subjected to the same member and detailed description is abbreviate | omitted.

  Next, a fifth embodiment of the present invention shown in FIG. 20 will be described.

  The difference between the present embodiment and the second embodiment is that the vertical positions of the air supply chamber 25 and the exhaust chamber 26 are reversed. That is, in the present embodiment, an upper portion of the housing 2 is provided with an air supply chamber 25 into which air to be used flows and an exhaust chamber 26 into which air to be used flows in, with the former on top and the latter on the bottom. Air passages 12, 14 communicating with the blower fans 7, 8 for the condenser 5 and the evaporator 6 are connected to the bottom of the air supply chamber 25 through the exhaust chamber 26, and the air passage 12, 14 are provided with air passage openings 12a 'and 14a' on the surface of the through portion of the exhaust chamber 26 opposite to the front surface of the housing 2, and the air supply chambers of the air passages 12 and 14 are provided. 25, the openings 12b and 14b to the bottom of the air passages 12 and the air passages 12a 'and 14a' provided in the air passages 12 and 14, respectively, are alternately connected with appropriate ties. Air flow switching dampers 27 and 28 that are blocked by the air flow, and the air discharge port 25A of the air supply chamber 25 is provided on the front side of the housing 2, while the air discharge port 26A of the exhaust chamber 26 is The air supply chamber 25 is provided at a position different from the air discharge port 25A (in this embodiment, the rear surface side of the housing 2).

  FIG. 20 shows a case where cold air is blown out from the air discharge port 25A of the air supply chamber 25. In such a case, the air passage port 14a ′ of the air passage 14 is blocked by the air flow path switching damper 28. While opening the opening 14b to the bottom of the air supply chamber 25 of the air passage 14, the air passage 12a 'of the air passage 12 is opened and the opening 12b of the air passage 12 to the bottom of the air supply chamber 25 is air. It is blocked by the flow path switching damper 27.

  As a result, the air cooled by the evaporator 6 flows into the air supply chamber 25 from the air passage 14 and is discharged from the air discharge port 25A to the front side of the housing 2. On the other hand, the air heated by the condenser 5 flows into the exhaust chamber 26 from the air passage 12 and is discharged to the rear surface side of the housing 2 from the air discharge port 26A. In addition, since the other structure and effect | action are the same as that of the said 2nd Embodiment, the same code | symbol is attached | subjected to the same member and detailed description is abbreviate | omitted.

  As a modification of the embodiment shown in FIG. 20, although not shown, a cylindrical air guide may be provided at the air discharge port 26A of the exhaust chamber 26, and further, the air discharge port of the air supply chamber 25 may be provided. The air blow grill with louver for adjusting the wind direction may not be attached to 25A, but a cylindrical air guide for guiding the air supply instead of this to a predetermined place may be provided.

  In each of the above embodiments, if the temperature and humidity are measured and the cold air operation mode and the cool air operation mode are switched by automatic control, the optimum air cooling operation that achieves both comfort and energy saving is automatically performed. Can be done.

  In such a case, the temperature and humidity of the intake air are measured by the temperature sensor 33 and the humidity sensor 34 disposed between the air intake hole 3 on the front surface of the housing 2 and the front vaporizing element 16, and the measured temperature of the air is measured. The operation mode automatic control device 35 that automatically switches the operation mode is determined by determining the optimum air cooling operation mode from the humidity, the arbitrarily set supply air temperature, and the evaporative cooling efficiency.

The outline of the control by the operation mode automatic control device 35 is as follows.
Setting parameter (control input)
(1) Set supply air temperature (optional): TDBos
(2) Evaporative cooling efficiency (optional): SE
Measurement parameter (control input)
(1) Suction air dry bulb temperature by temperature sensor: TDBi
(2) discharging from Humidity sensors Air relative humidity: RHi
Calculation parameters (internal calculation)
(1) Calculate the wet-bulb temperature of the suction air from TDBi and RHi: TWBi
(2) Calculate the air supply dry bulb temperature during cool wind operation from TDBi, TWBi, SE: TDDoc
(3) Compare the set supply air temperature TDBos with the supply air dry bulb temperature TDDoc during cool air operation. Operation switching (control output)
(1) When TDBos ≥ TDBoc, a cool wind operation signal is output (energy saving operation)
(2) When TDBos <TDDoc, output cold air operation signal (comfort priority operation)

DESCRIPTION OF SYMBOLS 1 Spot air conditioner 2 Housing 3 Air intake hole 4 Compressor 5 Condenser 6 Evaporator 7, 8 Blower fan 9 Condensed water drain pan 12 Air passage 12a Air passage 12b Opening to bottom of exhaust chamber 13 Cylindrical blow guide 14 Air passage 14a Air Passage port 14b Opening to the bottom of the exhaust chamber 15 Cylindrical air guide 16 Front vaporization element 17 Rear vaporization element 18 Sprinkler 18a, 18a Sprinkling nozzle 19 Water tank 20 Sprinkling pump 21 Frame holder 25 Air supply chamber 25A Air discharge port 26 Exhaust Chamber 26A Air discharge port 27, 28 Air flow path switching damper 29 Air blow grill with louver for air direction adjustment 31, 32 Cylindrical air guide 33 Temperature sensor 34 Humidity sensor 35 Operation mode automatic control device

Claims (6)

  A front vaporizing element and a rear surface provided with air intake holes on the front surface and arranged on both sides so as to sandwich the capacitor in a housing incorporating an air conditioning unit including a compressor, a condenser, an evaporator, and a blower fan for the condenser and the evaporator. A vaporizing element, either the front vaporizing element or the back vaporizing element, or a sprinkler for sprinkling water and the condenser from above, and the condenser, the front vaporizing element, and the lower vaporizing element are disposed below. A water tank that stores a predetermined amount of water and receives a drainage drained from a condensed water drain pan disposed at a lower portion of the evaporator, and a watering and vaporizing unit that circulates water from the water tank to the watering device. Further, each air passage communicating with each blower fan To come out mouth, spot air conditioner, characterized in that the opening direction is provided an adjustable and the cylindrical air guide.   The spot air conditioner according to claim 1, wherein the condenser, the front vaporizing element, and the back vaporizing element are incorporated in a frame-shaped holder.   A front vaporizing element and a rear surface provided with air intake holes on the front surface and arranged on both sides so as to sandwich the capacitor in a housing incorporating an air conditioning unit including a compressor, a condenser, an evaporator, and a blower fan for the condenser and the evaporator. A vaporizing element, either the front vaporizing element or the back vaporizing element, or a sprinkler for sprinkling water and the condenser from above, and the condenser, the front vaporizing element, and the lower vaporizing element are disposed below. A water tank that stores a predetermined amount of water and receives a drainage drained from a condensed water drain pan disposed at a lower portion of the evaporator, and a watering and vaporizing unit that circulates water from the water tank to the watering device. Furthermore, the air to be used is located at the top of the housing An air supply passage and an exhaust chamber into which unused air flows are overlapped with the former facing down or above, the latter facing up or down, and air passages communicating with the blower fans for the condenser and the evaporator, The air supply chamber or the exhaust chamber is penetrated and connected to the bottom of the exhaust chamber or the air supply chamber, and each of the air passages is on the same side as the front surface of the housing in the through portion of the air supply chamber or the exhaust chamber. Alternatively, an air passage port is provided on the opposite surface, and the air passages provided at the bottom of the exhaust chamber or the exhaust chamber of the air passages and the air passage ports provided in the air passages are alternately provided as appropriate. An air flow path switching damper that shuts off at a timing is provided, and an air discharge port of the air supply chamber While providing the surface side, air outlet of the exhaust chamber, the spot air conditioner characterized by comprising providing the location of the different side from said air supply chamber of the air outlet.   4. A spot air conditioner according to claim 3, wherein a louvered air blowing grill for adjusting the wind direction is attached to the air discharge port of the air supply chamber.   The spot air conditioner according to claim 3, wherein a cylindrical air guide is provided at an air discharge port of the air supply chamber and / or an air discharge port of the exhaust chamber. The temperature and humidity of the intake air are measured with the temperature sensor and humidity sensor placed between the air intake hole on the front of the housing and the front vaporization element, and the measured air temperature and humidity and the arbitrarily set supply temperature 6. The spot air conditioner according to claim 3, further comprising an operation mode automatic control device that determines an optimum air cooling operation mode from the evaporative cooling efficiency and automatically switches the operation mode.

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