Elevator air conditioner system arranged at top of elevator car

Abstract

The invention provides an elevator air conditioner system arranged at the top of an elevator car. The elevator air conditioner system comprises a condensation cavity and an evaporation cavity, whereinthe condensation cavity is equipped with a compressor, an air exhaust pipe, a condenser, a condensation fan, a throttling device, an evaporation dish, a liquid level switch, a spraying water pump, anozzle, a condenser outlet pipe and other related pipes; the evaporation cavity is equipped with a wind return cover, an evaporator, an condensation fan, a water pan, a wind return port, a wind supplyport, a sealing structure and related pipes; an air exhaust port of the compressor communicates with the inlet of the condenser, the outlet of the condenser communicates with the throttling device through the condenser outlet pipe, the outlet of the throttling device communicates with the inlet of the evaporator, and the outlet of the evaporator communicates with an air return port of the compressor, so as to form a loop; and the wind supply port of an air conditioner directly communicates with a wind inlet port of the elevator car, and then an air-conditioning cabinet directly supplies windinto the elevator car. The elevator air conditioner system provided by the invention is low in air supply resistance, large in windward area, more uniform in wind quantity distribution and higher in sealability; condensate water can be quickly and effectively removed, thereby increasing the refrigerating capacity and the improving the energy efficiency ratio of the air conditioner; and such an effective elevator air conditioner system is provided for an elevator.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of an elevator air conditioner, and relates to an elevator air conditioning system with an overhead car. Background technique [0002] With the improvement of people's houses, more and more elevators are used, and people's requirements for elevators are getting higher and higher. Not only fast, stable and quiet, but also beautiful and comfortable, including the requirements for air conditioning. Therefore, elevators with air conditioners gradually have a market. Elevator air conditioners can generally be divided into car top-mounted air-conditioning systems and external unit (well) air-supply air-conditioning systems according to the different supply and return air environments. The car-top air-conditioning system means that the main unit of the air conditioner is directly placed or hung on the beam on the top of the elevator car. Repeatedly, the air conditioning system achieves ...

AI Technical Summary

Problems solved by technology

[0003] In comparison, the disadvantages of the air supply air-conditioning system of the external unit (well) are: the number of duct air outlets needs to be increased, the investment is large, the energy consumption is large, and the wind pressure of the central air-conditioning system is likely to be abnormal under the high-speed operation of the elevator. normal fluctuation

However, the disadvantages of the current air-conditioning system on the roof of the car are also obvious, mainly as follows: (1) Because it mostly uses fixed-frequency compressors, it is easy to cause energy waste

(2) There are defects in the discharge of condensed water. Since the elevator moves up and down and the moving distance is very long, it is impossible to use a drain pipe to discharge the condensed water out of the elevator car like a household air conditioner; directly discharging it into the shaft will cause huge potential safety hazards, therefore, how to better deal with condensed water is the current technical difficulty of elevator air conditioners

⑶Using the air supply pipe to supply air, not only the resistance of the air supply is relatively large, but also the loss of cooling capacity through the air supply pipe is relatively large, which affects the overall performance of the air conditioner

(4) Directly open the air return port on the air conditioning box. This return air method will easily cause uneven distribution of air volume and reduce the heat exchange efficiency of the evaporator.

⑸The air supply port and return air port are on the same surface, and the windward area of ​​the evaporator is small, which may cause insufficient heat transfer

⑹Use more than one way to remove condensed water. When the amount of condensed water is too large, it will cause the condensed water to not be removed in time, and there are potential safety hazards

However, since the water wheel cannot be in contact with the bottom of the water receiving tank, it is difficult to beat up all the condensed water, which may easily cause water accumulation and mildew in the receiving pool; in addition, because the water pumped by the water wheel cannot be atomized, the water particles are relatively small Large, the heat of the condenser cannot evaporate all the condensed water, which will cause the exhaust air of the condenser to carry water, resulting in turbulent water flow or water accumulation on the side of the condenser

Chinese patent document CN202915534U discloses an "elevator air conditioner with atomizer". The condensed water produced by it is atomized by the atomizer and then discharged directly. If there is a large amount of condensed water, the high-temperature heat of the condenser is difficult to vaporize all the atomized water droplets, which will cause turbulent water flow or water accumulation on the side of the condenser, and when the amount of condensed water is small, the atomizing pump cannot work normally.

However, due to the limited heat of the refrigerant in the discharge pipe of the compressor, this integrated air conditioner can only work when the amount of condensed water is small. water discharge problem

Images