Low-noise and low-static-pressure air-conditioning system of railway vehicle

A technology for rail vehicles and air conditioning systems, applied in the field of rail vehicle air conditioning systems, can solve the problems of complex structure, high noise, uncomfortable riding, etc., and achieve the effects of small changes in static pressure, reduced dynamic pressure, and reduced local resistance.

Pending Publication Date: 2019-08-16
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a rail vehicle air conditioner return air system with simple structure, convenient installation, low noise and low static pressure under the condition of large cooling capacity and high air volume, so as to overcome the complicated structure and low noise of the current rail vehicle air conditioning system. Disadvantages of big, uncomfortable ride

Method used

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  • Low-noise and low-static-pressure air-conditioning system of railway vehicle
  • Low-noise and low-static-pressure air-conditioning system of railway vehicle
  • Low-noise and low-static-pressure air-conditioning system of railway vehicle

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Embodiment Construction

[0021] refer to Figure 1-Figure 4 , the air-conditioning system of the present invention comprises: air-conditioning unit 1, air supply duct 5, air supply grille 7 and return air grille 8 at both ends, and two air supply fans 2 are arranged for each unit. At both ends of the unit and down the air. Two unit air supply outlets 3 are arranged at the bottom of both ends of the unit, and two return air outlets 4 are arranged on both sides of each unit air supply outlet 3, and each unit provides two unit air supply outlets and four return air outlets. Each rail vehicle is equipped with two air-conditioning units 1, which are respectively arranged at 1 / 4 and 3 / 4 of the length direction of the roof. Since the return air outlets are arranged at the bottom of both ends of the unit, the corresponding roof is at 1 / 8 and 3 / 4 of the length direction. 3 / 8, 5 / 8, and 7 / 8 have roof air supply outlets 6, which greatly reduce the air supply distance, air supply speed, unit static pressure and a...

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Abstract

The invention provides a low-noise and low-static-pressure air-conditioning system of a railway vehicle. The low-noise and low-static-pressure air-conditioning system comprises air conditioning unitsand airdelivery conduits, and has the characteristics that each vehicle is provided with the two air conditioning units, a draught fan of each air conditioning unit is arranged vertically at the two ends of the corresponding air conditioning unit to make the draught fan supply air downward, corresponding air supply outlets and air return inlets are placed at the two ends of the bottom portion of the corresponding unit, and every air supply outlet communicates with the corresponding air conduits; according to the low-noise and low-static-pressure air-conditioning system, the air return inlets are mounted on the two sides of the two ends of the bottom portion of the corresponding unit, the air return inlets (grilling) are installed on the two sides of an inner installation roof plate, and onthe same vehicle section as an air supply grilling, the grilling in an air supply area is the air supply grilling, the grilling in an air return area is an air return grilling, and the air supply grilling and the air return grilling are perfectly combined.

Description

technical field [0001] The invention relates to a rail vehicle air conditioning system, in particular to an air conditioning system with low noise and low static pressure. Background technique [0002] With the development of society, people go out more and more frequently, and everyone's noise requirements for rail vehicles are becoming more and more stringent. Urban rail vehicles have a large passenger capacity, and the air-conditioning system has a large air volume and high noise. The top-mounted down-flow and down-return air-conditioning unit is widely used in urban rail vehicles due to its simple interface with the roof and small unit height. However, the current blower and return air outlets of the current down-supply and return-return air units are all arranged at one end of the air-conditioning unit. 4 Two places, each air supply fan is responsible for the long air supply distance of the air duct in the car, and it is necessary to connect multiple air ducts with fl...

Claims

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Application Information

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IPC IPC(8): B61D27/00
CPCB61D27/009
Inventor 崔军胜康伟于文晶邢胜威
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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