Air conditioning air duct system of high-speed motor train unit

A technology for high-speed EMUs and air-conditioning ducts, applied in railway car body parts, railway vehicle heating/cooling, transportation and packaging, etc., to achieve the effect of reducing return air resistance, uniform airflow organization, and ensuring air tightness

Active Publication Date: 2013-06-19
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Higher-speed EMUs are quite different from previous models in terms of speed and design structure. The air-conditioning duct system of the existing EMUs cannot meet the higher requirements for air tightness and uniformity of air supply in the car. Theref

Method used

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  • Air conditioning air duct system of high-speed motor train unit
  • Air conditioning air duct system of high-speed motor train unit
  • Air conditioning air duct system of high-speed motor train unit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example one:

[0039] Such as figure 1 As shown, the air-conditioning duct system of the high-speed EMU includes an air-conditioning unit. In this embodiment, the air-conditioning unit has a split structure, including an indoor unit 1 and an outdoor unit (not shown in the figure). The unit 1 is installed at one end of the carriage 2, and the indoor unit 1 and the outdoor unit are connected by a refrigerant pipeline. The air-conditioning unit adopts a split structure, which can shorten the length of the air duct, thereby reducing the total weight of the air duct, and meeting the higher requirements of higher-speed EMUs for lighter vehicles. At the same time, the shortening of the air duct can also make greater use of the cooling capacity, reducing the loss of cooling capacity caused by the excessively long air duct, and improving the cooling efficiency of the whole machine.

[0040] The air outlet of the indoor unit 1 is connected to the air supply duct, and is used to trans...

Example Embodiment

[0055] Embodiment two:

[0056] The difference from the first embodiment is that there is a useful set between the air outlet of the indoor unit 1 of the air conditioning unit and the mid-top air supply duct 4, the one-side top air supply duct 5 and the two-position side top air supply duct 6. For the air volume splitting device that simultaneously distributes the air volume of each air duct, only one air volume splitting device is provided.

[0057] The air flow distribution device can be a plurality of baffles arranged in the air supply mixing box 8 for simultaneous distribution of the mid-top air supply duct 4, the one-side top air supply duct 5 and the two-position side top air supply duct At this time, the air supply mixing box 8 has three air outlets, which are respectively connected to the mid-top air supply duct 4, the one-side top air supply air duct 5 and the two-position side top air supply air duct 6.

Example Embodiment

[0058] Embodiment three:

[0059] The difference from the second embodiment is that the air supply mixing box 8 has only one air outlet. After passing through an intermediate air duct, the air volume splitting device is arranged on the top of the intermediate air channel, and the air volume splitting device is also multiple baffles. It is used to simultaneously distribute the air volume of the mid-top air supply duct 4, the one-position side top air supply duct 5 and the two-position side top air supply duct 6.

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Abstract

The invention relates to an air conditioning air duct system of a high-speed motor train unit. The air conditioning air duct system of the high-speed motor train unit comprises an air conditioning unit, wherein the air conditioning unit is communicated with an air-supply outlet and an air-return inlet which are arranged in a train through an air-supply duct and an air-return duct, and the air conditioning unit is communicated with a fresh air port through a fresh air duct. The air-supply duct comprises a middle-top air-supply duct arranged in the central area on the top of a train body and/ or side-top air-supply ducts arranged in the side-top areas on two sides of train body, and a plurality of air-supply outlets are evenly formed in the middle-top air-supply duct and the side-top air-supply ducts. According to the air conditioning air duct system of the high-speed motor train unit, air is supplied from the center and two sides of a coach of the train and returns from one end of the coach of the train, air motion and air distribution in the whole train are benefited, therefore air distribution in the train is uniform, the uniformity and stability of temperature, humidity, air speed and cleanliness in the train are guaranteed, and the requirement of comfort of passengers is met. Besides, an indoor machine is arranged at one end of the coach of the train, the air-return inlet is arranged on the position near the indoor machine, thus air return resistance is reduced, noise inside the train is reduced, and comfort in riding the train is improved.

Description

technical field [0001] The invention relates to an air-conditioning air duct system, in particular to an air-conditioning air duct system used on higher-speed EMUs, and belongs to the technical field of rail vehicle air-conditioning manufacturing. Background technique [0002] In medium and high-speed EMUs, each car is generally equipped with two air-conditioning units, each air-conditioning unit adopts a unit structure, and the air-conditioning unit is arranged at the bottom of the car body, and a ventilation device is also installed at the bottom of the car body. The air conditioning unit is connected to the air supply outlet and return air outlet in the car through the air supply duct and the return air duct. The return air outlet is provided with a waste air outlet in the bathroom and the passage table, and the waste air outlet is connected with the ventilation device through the waste exhaust duct, and the ventilation device is connected with the fresh air inlet at the ...

Claims

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Application Information

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IPC IPC(8): B61D27/00
Inventor 任广强李江春于晓良袁博
Owner CRRC QINGDAO SIFANG CO LTD
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