JP6053709B2 - Elevator system - Google Patents

Description

  The present invention relates to an elevator system.

  Conventionally, although a fan for ventilation is installed in an elevator car, passengers in the car may feel hot and humid especially in summer. In winter, passengers in the car may feel cold.

  In Patent Document 1, as an air conditioner for an elevator, an evaporator that vaporizes a liquefied refrigerant, a condenser that condenses and liquefies the refrigerant vaporized by the evaporator, and a tank unit that stores drain water generated by the evaporator, The structure provided with this is disclosed.

JP 2010-163228 A

  In the configuration of Patent Document 1, an apparatus such as an evaporator or a condenser is required, which is a large-scale facility. Therefore, it is desired to adjust the temperature of air in the car with a simpler configuration.

  It is an object of the present invention to provide an elevator system that can adjust the temperature of air in a car with a simpler configuration.

  An elevator system according to the present invention generates a vortex that rotates at high speed using compressed air that flows in from a compressor that compresses air, and discharges air at the outer peripheral portion that is higher in temperature than the central portion of the vortex. A discharge air outlet and a cold air discharge air outlet for discharging the air in the central portion having a low temperature; and an eddy current air conditioning unit for an elevator provided on an elevator car, and warm air discharged from the hot air discharge port. It comprises a buffer tank section having at least one of a hot air buffer tank for storing and a cold air buffer tank for storing cold air discharged from the cold air discharge port.

  Further, in the elevator system according to the present invention, the temperature sensor for detecting the temperature in the car, and the warm or cold air stored in the buffer tank unit based on the temperature in the car, It is preferable to provide an introduction part to be introduced into the.

  In the above configuration, an apparatus such as an evaporator or a condenser is not necessary, and at least one of hot air and cold air is stored using the eddy current air conditioning unit for elevator. Therefore, the temperature of the air in the car can be adjusted with a simpler configuration.

It is a figure showing an elevator system of an embodiment concerning the present invention. It is sectional drawing of the eddy current air-conditioning part of the elevator system of embodiment which concerns on this invention.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. Also, in the following, corresponding elements in all drawings are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a diagram showing an elevator system 10. The elevator system 10 is a system in which a car 14 moves up and down in a hoistway 12 formed in an elevator tower 11 that is exposed to outside air. The elevator system 10 includes a small air conditioner 15 installed on the car 14.

  The elevator tower 11 is a portion protruding in a convex shape from the building body. The hoistway 12 is formed through the elevator tower 11. A glass window is attached to the elevator tower 11 so that the inside of the hoistway 12 can be visually recognized from the outside. The car 14 is configured with a full glass so that the passenger 8 can see the outside scenery.

  The air conditioner 15 includes a vortex air conditioning unit 16, a buffer tank unit 18 that stores air generated by the vortex air conditioning unit 16, an introduction unit 20 that introduces air in the buffer tank unit 18 into the car 14, and a car 14 is provided with a temperature sensor 22 for detecting the temperature within 14. In general, an air conditioning system installed in an elevator system requires devices such as an evaporator and a condenser. When the size of the upper surface of the car 14 is 2 m × 2 m, for example, all devices are installed. The area is 1.5 m × 1.5 m or more and occupies most of the upper surface of the car 14. On the other hand, the air conditioner 15 is composed of small elements, and elements that require a power source are a compressor 24 and a valve adjustment unit 46 described later. The area where all the devices are installed occupies only a part of the upper surface of the car 14, which is about 0.5 m × 0.5 m.

  FIG. 2 is a cross-sectional view of the vortex air conditioning unit 16. The vortex air conditioning unit 16 includes a small compressor 24 that compresses air, a vortex tube 26, a nozzle 28 that introduces compressed air from the compressor 24 into the vortex tube 26, and a flow rate adjustment valve 32.

  The compressor 24 is a device that compresses air. The compressor 24 is configured using a small compressor having a volume of 0.2 m × 0.2 m × 0.2 m, for example.

  The nozzle 28 is a member that introduces high-pressure air from the compressor 24 into the vortex tube 26. The nozzle 28 is mounted vertically on the vortex tube 26.

  The vortex tube 26 is a cylindrical member. For example, the vortex tube 26 has a diameter of 0.1 m and a length of 0.3 m. A hot air outlet 30 is formed at one end of the vortex tube 26. A cold air discharge port 34 is formed at the other end of the vortex tube 26. The flow rate adjustment valve 32 has a conical shape and is installed in front of the hot air outlet 30.

  The compressed air introduced from the nozzle 28 hits the inner wall of the vortex tube 26 and travels toward the hot air outlet as an outer vortex rotating at high speed along the inner wall. A part of the outer vortex flow is discharged from the hot air discharge port 30 through the flow rate adjustment valve 32, and the remaining air reverses the traveling direction at the tip of the flow rate adjustment valve 32, and the central portion of the vortex tube 26 is The vortex flows toward the cold air outlet 34 and then is discharged from the cold air outlet 34. The outer eddy current has a high temperature due to high pressure and high kinetic energy, and is, for example, about 50 ° C. On the other hand, the inner vortex flow has a low temperature because of low pressure and low kinetic energy, and is, for example, about −10 ° C.

  Returning to FIG. 1 again, the buffer tank unit 18 includes a hot air buffer tank 36 and a cold air buffer tank 38. The hot air buffer tank 36 is a tank that is connected to the hot air outlet 30 of the vortex tube 26 via a pipe and stores warm air discharged from the hot air outlet 30.

  The cold air buffer tank 38 is connected to the cold air outlet 34 of the vortex tube 26 through a pipe, and is a tank that stores the cold air discharged from the cold air outlet 34.

  The temperature sensor 22 is a thermometer that detects the temperature in the car 14. The introduction unit 20 introduces warm or cold air stored in the buffer tank unit 18 into the car 14 based on the temperature in the car 14.

  The introduction unit 20 includes an introduction pipe 40, an adjustment valve 42, an air conditioning setting unit 44, and a valve adjustment unit 46. The introduction pipe 40 has one end connected to the warm air buffer tank 36 and the other end connected to the inside of the car 14, and one end connected to the cold air buffer tank 38 and the other end thereof. A cold air introduction pipe 50 directed into the passenger car 14.

  The adjustment valve 42 includes a hot air valve 52 attached to an intermediate part of the hot air introduction pipe 48 and a cold air valve 54 attached to an intermediate part of the cold air introduction pipe 50. The hot air valve 52 and the cold air valve 54 are electromagnetic valves controlled by the valve adjustment unit 46.

  The air conditioning setting unit 44 includes a button for starting or stopping the operation, a button for switching between the cooling operation and the heating operation, and a setting button for setting a target temperature in the car 14. The valve adjustment unit 46 controls the open / close valves of the hot air valve 52 and the cold air valve 54 based on the target set temperature in the car 14 and the detected temperature detected by the temperature sensor 22. When the heating operation is selected by the cooling / heating setting unit 44, the valve adjustment unit 46 sets the warm air valve 52 so that warm air is introduced into the car 14 if the detected temperature is lower than the target set temperature. Open the valve. When the cooling / heating setting unit 44 selects the cooling operation, the valve adjustment unit 46 opens the cold air valve 54 so that cold air is introduced into the car 14 if the detected temperature is higher than the target set temperature. I speak.

  Then, the effect | action of the elevator system 10 of the said structure is demonstrated. In the elevator system 10 in which the car 14 moves up and down in the hoistway 12 of the elevator tower 11 exposed to the outside air, the passenger 8 may feel sultry in summer.

  When the passenger 8 or the like selects the cooling operation by the air conditioning setting unit 44 and sets the target set temperature to 20 ° C., if the detected temperature in the car 14 is 25 ° C., the valve adjustment unit 46 The cold air valve 54 is opened so that a predetermined amount of cold air is introduced from the tank 38 into the car 14. Thereby, since cold air flows into the car 14, the temperature in the car 14 can be brought close to the target set temperature.

  In the winter, the passenger 8 may feel cold. When the passenger 8 selects the heating operation by the air conditioning setting unit 44 and sets the target set temperature to 20 ° C., the detected temperature in the car 14 is detected. Is 10 ° C., the valve adjustment unit 46 opens the warm air valve 52 so that a predetermined amount of warm air is introduced from the warm air buffer tank 36 into the car 14. Accordingly, since warm air flows into the car 14, the temperature in the car 14 can be brought close to the target set temperature.

  The target set temperature is an example, and can be set to other temperatures as a matter of course.

  Since the elevator system 10 does not require an evaporator or a condenser as in a general air conditioning system, the elevator system 10 has a simpler configuration and occupies only a part of the upper surface of the car 14. Therefore, there exists an advantage which can be installed by small-scale renovation with respect to the existing elevator system.

  8 passengers, 10 elevator system, 11 elevator tower, 12 hoistway, 14 passenger car, 15 air conditioner, 16 vortex air conditioning unit, 18 buffer tank unit, 20 introduction unit, 22 temperature sensor, 24 compressor, 26 vortex tube, 28 nozzle , 30 Hot air discharge port, 32 Flow rate adjustment valve, 34 Cold air discharge port, 36 Hot air buffer tank, 38 Cold air buffer tank, 40 Introduction pipe, 42 Adjustment valve, 44 Air conditioning setting unit, 46 Valve adjustment unit, 48 temperature Inlet piping for wind, 50 Inlet piping for cold air, 52 Valve for hot air, 54 Valve for cold air.

Claims (2)

A hot air outlet that generates a swirl that rotates at high speed using compressed air that flows in from a compressor that compresses air, and discharges air at an outer peripheral portion that has a higher temperature than the central portion of the swirl, and the temperature that is low A vortex air conditioning unit for an elevator having a cold air outlet for discharging air in the center, and provided on an elevator car;
A buffer tank portion having at least one of a hot air buffer tank for storing warm air discharged from the hot air outlet and a cold air buffer tank for storing cold air discharged from the cold air outlet;
An elevator system comprising: The elevator system according to claim 1,
A temperature sensor for detecting the temperature in the car;
Based on the temperature in the car, an introduction part for introducing warm or cold air stored in the buffer tank part into the car;
An elevator system comprising:

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