JP2010163228A - Air conditioner for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner for an elevator, capable of further suitably excluding drain water generated by an evaporator. <P>SOLUTION: This air conditioner 10 for the elevator includes the evaporator 28 vaporizing a liquefied refrigerant, a condenser 38 condensing and liquefying the refrigerant vaporized by the evaporator 28, a tank part 34 storing the drain water generated by the evaporator 38, a water level detecting part for detecting the water level of the drain water stored in the tank part 34, and an ultrasonic vibrator part 36 vibrating in the drain water when the water level of the drain water stored in the tank part 34 becomes a predetermined value or more. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator air conditioner, and more particularly to an elevator air conditioner that adjusts the room temperature in a passenger compartment.

  The elevator air conditioner installed in the elevator rotates the fan, filters the air sucked into the main body from the suction port with a filter, performs heat exchange with the evaporator, and then blows out from the outlet. Although the drain water generated by the evaporator is stored in the drain pan, if the use of the elevator air conditioner is continued, the drain water may overflow from the drain pan.

  Patent Document 1 discloses a drain treatment device for an air conditioner. Here, the drain led from the drain pan below the evaporator is dropped into a drain pan below the condenser through a plurality of drain holes arranged above the condenser, and sucked up by a watering pump driven to rotate by the shaft of the electric motor. It is stated that it is dripped into the condenser.

Japanese Utility Model Publication No. 56-153719

  According to the configuration of Patent Document 1, drain water can be evaporated. However, in the configuration of Patent Document 1, since drain water is evaporated through a condenser, there is a problem that dust or the like contained in the drain water adheres to the condenser.

  An object of the present invention is to provide an elevator air conditioner that can more suitably exclude drain water generated by an evaporator.

  An elevator air conditioner according to the present invention includes an evaporator for vaporizing a liquefied refrigerant, a condenser for condensing and liquefying the refrigerant vaporized by the evaporator, a tank section for storing drain water generated by the evaporator, and a tank A water level detection unit that detects the level of drain water stored in the unit, an ultrasonic transducer unit that vibrates in the drain water when the level of drain water stored in the tank unit exceeds a predetermined level, and Is provided.

  In the elevator air conditioner according to the present invention, it is preferable that the tank portion is provided below the condenser.

  Moreover, the elevator air conditioner according to the present invention preferably further includes a spray nozzle that sprays drain water atomized by vibration of the ultrasonic vibrator section onto the condenser.

  In the elevator air conditioner according to the present invention, it is preferable to further include a duct in which the opening at one end covers the ultrasonic transducer section and the opening at the other end covers the condenser.

  Further, in the elevator air conditioner according to the present invention, the ultrasonic transducer unit includes a plurality of ultrasonic transducers, and the number of ultrasonic transducers that vibrate according to the water level of the drain water detected by the water level detection unit. Is preferably changed.

  According to the elevator air conditioner configured as described above, the drain water is atomized by the vibration of the ultrasonic transducer section. Thereby, drain water can be excluded, without the dust etc. which are contained in drain water adhere to the components which comprise the air conditioner for elevators.

  Moreover, according to the elevator air conditioner provided with the spray nozzle configured as described above, the atomized drain water is sprayed onto the condenser. Thereby, a condenser can be cooled with the atomized drain water.

  Moreover, according to the elevator air conditioner provided with the duct having the above configuration, the atomized drain water can be guided to the condenser to cool the condenser.

It is a figure which shows the mode in the passenger car in the elevator containing the air conditioner for elevators which is 1st Embodiment of this invention. It is a figure which shows the relationship between the outdoor unit and control part in the air conditioner for elevators which is 1st Embodiment of this invention. It is a figure equivalent to the figure seen from the arrow B direction (refer FIG. 2) in the modification of the elevator air conditioner which is 1st Embodiment of this invention. It is a figure which shows the relationship between the outdoor unit and control part in another modification of the air conditioner for elevators which is 1st Embodiment of this invention. It is a figure which shows the relationship between the outdoor unit and control part in another modification of the elevator air conditioner which is 1st Embodiment of this invention.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. Further, in this description, specific shapes, materials, numerical values, directions, and the like are examples for facilitating understanding of the present invention, and can be appropriately changed according to the use, purpose, specification, and the like.

  FIG. 1 is a view showing a state in a car 2 in an elevator system 100 including an elevator air conditioner 10 according to a first embodiment of the present invention. In the elevator system 100, a hoisting machine (not shown) for winding up the main rope 7 to move the car 2 and an elevator control panel (not shown) are installed in a so-called pit at the bottom of the hoistway. ing. The car 2 is for moving the passenger 4 to the destination floor, and includes a car operation panel 8, a car door 6, and an elevator air conditioner 10. The car operation panel 8 is an operation panel provided in the car 2 where a push button 82 for selecting a destination of the car 2, a display panel 84, and the like are arranged. The car door 6 is a door that opens and closes when the car 2 arrives at the destination floor set by the passenger 4. The display panel 84 has a function of displaying the current floor position of the car 2.

  The elevator air conditioner 10 includes an indoor unit 20 and an outdoor unit 30. The indoor unit 20 is disposed in the ceiling portion of the car 2, and includes an air inlet portion 201, an air outlet portion 202, and an air conditioner main body portion 21a. The air conditioner main body 21 a includes an evaporator 28, a filter 22, and an indoor fan 29.

  The suction inlet 201 extends from the suction inlet 203 (see FIG. 1) for taking the air in the passenger car 2 into the air conditioner main body 21a and the air inlet 203 (see FIG. 1) into the air conditioner main body 21a. And a bellows-like suction port hose 205. The suction port portion 201 is disposed so that a hole for a suction port is formed in the ceiling of the car 2, and the suction port 203 (see FIG. 1) of the suction port portion 201 faces the inside of the car 2.

  The filter 22 is provided in the vicinity of the suction port 201 on the upstream side in the air conditioner main body 21a. The filter 22 has a function of filtering air sucked from the suction port 201.

  The evaporator 28 is provided on the downstream side of the filter 22 and has a function of performing heat exchange for changing the air sucked by the indoor fan 29 into cold air. Here, the evaporator 28 and the condenser 38 are connected by an outward path side pipe 42 and a return path side pipe 44, and a refrigerant circulates in the pipe. The evaporator 28 performs heat exchange by evaporating and evaporating the liquefied refrigerant that has flowed in through the outward path side pipe 42. In addition, the drain pan 24 is a container that is disposed below the evaporator 28 and receives drain water generated when the evaporator 28 performs heat exchange. A drain hose 26 extending from the drain pan 24 to the tank portion 34 is disposed.

  The indoor fan 29 is provided on the downstream side of the evaporator 28, and has a function of sucking air in the car 2 through the suction port 201, the filter 22, and the evaporator 28. The indoor fan 29 is rotationally driven by a motor (not shown).

  The air outlet portion 202 has an air outlet 204 (see FIG. 1) for blowing out air that has been sucked in from the air inlet 203 by the indoor fan 29 and heat-exchanged by the evaporator 28, and an air outlet 204 (see FIG. 1) from the air conditioner main body 21a. 1) and a bellows-shaped outlet hose 206 extending toward the center. A hole for the air outlet is formed in the ceiling of the car 2, and the air outlet 204 (see FIG. 1) of the air outlet portion 202 is disposed so as to be directed into the car 2.

  FIG. 2 is a diagram illustrating a relationship between the outdoor unit 30 and the control unit 70. The outdoor unit 30 includes a condenser 38 and an outdoor fan 39. The condenser 38 has a function of condensing and liquefying the vaporized refrigerant that has flowed in after the refrigerant vaporized by the evaporator 28 is compressed by a compressor (not shown) through the return side pipe 44. Then, the refrigerant liquefied by the condenser 38 is expanded by an expansion valve (not shown) and then flows into the forward path side pipe 42 again. The outdoor fan 39 has a function of blowing air so that the condenser 38 condenses and vaporizes the vaporized refrigerant.

  The tank unit 34 is a container disposed below the condenser 38. The tank unit 34 is a container for storing drain water generated by the evaporator 28 and flowing in through the drain hose 26. The ultrasonic transducer unit 36 is a member that is attached to the bottom surface of the tank unit 34 and that atomizes the drain water by vibrating the drain water stored in the tank unit 34. The water level detection unit 37 includes a float that floats on the drain water stored in the tank unit 34, and can detect the water level of the drain water stored in the tank unit 34 at the position of the float.

  The control unit 70 has a function of controlling the ultrasonic transducer unit 36 based on the output of the water level detection unit 37. Specifically, if the water level in the tank unit 34 detected by the water level detection unit 37 is equal to or lower than a predetermined level, the control unit 70 turns off the ultrasonic transducer unit 36 and sets the water level in the tank unit 34 to a predetermined level. If so, the ultrasonic transducer section 36 is turned on.

  Next, the operation of the elevator system 100 including the elevator air conditioner 10 having the above-described configuration will be described with reference to FIGS. When the elevator air conditioner 10 of the elevator system 100 is in an operating state, after the air in the car 2 is sucked into the air conditioner main body 21 a by the rotation of the indoor fan 29 from the suction port 203 and filtered by the filter 22. The air heat-exchanged by the evaporator 28 is blown into the car 2 from the blower outlet 204. At this time, drain water generated when heat is exchanged in the evaporator 28 is dropped into the drain pan 24, and then flows into the tank portion 34 via the drain hose 26 to be stored.

  The control unit 70 turns off the ultrasonic transducer unit 36 when the level of the drain water accumulated in the tank unit 34 is equal to or lower than a predetermined level, and sets the ultrasonic transducer when the level is higher than the predetermined level. The part 36 is turned on. When the ultrasonic transducer unit 36 is turned on and vibrates in the drain water, the drain water is atomized.

  The atomized drain water floats upward. Here, since the wind direction is changed to the direction of the arrow A by the rotation of the outdoor fan 39, the atomized and suspended drain water adheres to the condenser 38. Thus, according to the elevator air conditioner 10, the drain water generated by the evaporator 28 can be eliminated. Further, since the atomized drain water is attached to the condenser 38, the condenser 38 can be cooled without attaching dust or the like to the condenser 38.

  Next, an elevator air conditioner 11 as a modification of the elevator air conditioner 10 will be described with reference to FIG. FIG. 3 is a view corresponding to the view seen from the direction of arrow B in FIG. Here, since the elevator air conditioner 11 has substantially the same configuration as the elevator air conditioner 10 of the above-described embodiment, the same constituent elements are denoted by the same reference numerals, and redundant descriptions are omitted by using the same. A structure and its effect | action are demonstrated. The difference between the elevator air conditioner 11 and the elevator air conditioner 10 is a water level detection unit 370 and an ultrasonic transducer unit 360.

  The ultrasonic transducer unit 360 includes ultrasonic transducers 361 to 366 and is divided into two groups. The first group of ultrasonic transducers includes ultrasonic transducers 361, 363, and 365. The second group of ultrasonic transducers includes ultrasonic transducers 362, 364, and 366. The control unit 70 controls both the first group of ultrasonic transducers and the second group of ultrasonic transducers.

  The water level detection unit 370 detects the water level of the drain water in the tank unit 34 with reference to three levels of water level thresholds. The threshold values for the three levels are the first level 372, the second level 374, and the third level 376 in order from the lowest.

  When the drain water in the tank unit 34 reaches the first stage water level 372, the control unit 70 vibrates the ultrasonic transducers 361, 363, and 365 that are the first group of ultrasonic transducers. When the drain water in the tank unit 34 reaches the second stage water level 374, the control unit 70 vibrates the ultrasonic transducers 362, 364, and 366 that are the second group of ultrasonic transducers. Further, when the drain water in the tank unit 34 reaches the third stage water level 376, the control unit 70 notifies a monitoring center (not shown) that monitors the elevator system 100.

  Thus, according to the elevator air conditioner 11, the number of ultrasonic vibrators that vibrate in the ultrasonic vibrator portion 360 is changed according to the water level stored in the tank portion 34, so that the drain water is atomized. You can adjust the speed. Further, when the drain water reaches the third stage water level 376, it is determined that the drainage is not in time due to the atomization of the ultrasonic vibrator unit 360, and the maintenance center is notified so that the maintenance worker can quickly respond. be able to.

  Next, an elevator air conditioner 12 according to another modification of the elevator air conditioner 10 will be described with reference to FIG. FIG. 4 is a diagram illustrating a relationship between the outdoor unit 30 and the control unit 70 of the elevator air conditioner 12. Here, since the elevator air conditioner 12 has substantially the same configuration as the elevator air conditioner 10 of the above-described embodiment, the same constituent elements are denoted by the same reference numerals, and redundant descriptions are omitted by using the same. A structure and its effect | action are demonstrated. The difference between the elevator air conditioner 12 and the elevator air conditioner 10 is that a spray nozzle 50 is further provided.

  The spray nozzle 50 is attached such that the opening 50 b covers the ultrasonic transducer section 36 and the spray port 50 a faces the condenser 38. In the spray nozzle 50, the drain water atomized by the vibration of the ultrasonic transducer section 36 is taken into the opening 50b, the direction of the drain water flowing is determined, and the atomized drain water is sprayed into the spray port 50a. To the condenser 38.

  Thus, according to the elevator air conditioner 12, the drain water atomized by the spray nozzle 50 can be guided to the condenser 38. Thereby, the condenser 38 can be cooled more efficiently.

  Next, an elevator air conditioner 13 according to another modification of the elevator air conditioner 10 will be described with reference to FIG. FIG. 5 is a diagram illustrating a relationship between the outdoor unit 30 and the control unit 70 of the elevator air conditioner 13. Here, since the elevator air conditioner 13 has substantially the same configuration as the elevator air conditioner 10 of the above-described embodiment, the same constituent elements are denoted by the same reference numerals, and duplicate descriptions are omitted by assistance. A structure and its effect | action are demonstrated. The difference between the elevator air conditioner 13 and the elevator air conditioner 10 is that a duct 60 is further provided.

  The duct 60 is a pipe whose one side opening 60 b covers the ultrasonic transducer part 36 and whose other side opening 60 a covers the condenser 38. In the duct 60, the drain water atomized by the vibration of the ultrasonic transducer section 36 enters from the opening 60 b, determines the flow direction of the drain water, and the atomized drain water is supplied to the condenser 38. Have the function of guiding.

  Thus, according to the elevator air conditioner 13, the drain water atomized by the duct 60 can be guided to the condenser 38. Thereby, the condenser 38 can be cooled more efficiently.

  4 passengers, 6 car doors, 7 main ropes, 8 car operation panels, 10, 11, 12, 13 elevator air conditioners, 20 indoor units, 21a air conditioner main body, 22 filters, 24 drain pans, 26 drain hoses, 28 evaporators, 29 indoor fan, 30 outdoor unit, 34 tank unit, 36 ultrasonic transducer unit, 37 water level detection unit, 38 condenser, 39 outdoor fan, 42 forward side piping, 44 return side piping, 50b opening, 50 spray nozzle, 60 duct, 60a spray port, 60b opening, 70 control unit, 82 push button, 84 display panel, 100 elevator system, 201 suction port, 202 outlet, 203 suction port, 204 outlet, 205 suction port hose, 206 outlet hose, 360 ultrasonic transducer part, 361, 362, 363, 364, 365 Ultrasonic vibrator, 370 water level detector, 372 first stage water level, 374 second stage water level, 376 third stage water level.

Claims (5)

An evaporator for vaporizing the liquefied refrigerant;
A condenser for condensing and liquefying the refrigerant vaporized by the evaporator;
A tank section for storing drain water generated by the evaporator;
A water level detector for detecting the level of drain water stored in the tank,
An ultrasonic vibrator section that vibrates in the drain water when the water level of the drain water stored in the tank section exceeds a predetermined level;
An elevator air conditioner comprising: The elevator air conditioner according to claim 1,
The tank part
An elevator air conditioner provided below a condenser. The elevator air conditioner according to claim 2,
An elevator air conditioner further comprising a spray nozzle for spraying drain water atomized by vibration of an ultrasonic vibrator section onto a condenser. The elevator air conditioner according to claim 2,
An elevator air conditioner further comprising a duct having an opening at one end covering the ultrasonic transducer section and an opening at the other end covering the condenser. The elevator air conditioner according to any one of claims 1 to 4,
An ultrasonic air conditioner comprising a plurality of ultrasonic vibrators, wherein the number of vibrating ultrasonic vibrators changes according to the water level of the drain water detected by the water level detector. .

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