Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Special air supply duct for railway special vehicle meeting room

A technology for special vehicles and conference rooms, which is applied in the heating/cooling of railway vehicles, railway car body parts, transportation and packaging, etc. It can solve the problems of inability to meet the use requirements of conference rooms and high noise, achieve good market prospects and reduce noise , good effect

Active Publication Date: 2012-02-22
CRRC NANJING PUZHEN CO LTD
View PDF8 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overall noise of the air supply on the mesh roof is too high, generally about 60-62db, which cannot meet the requirements of the conference room

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Special air supply duct for railway special vehicle meeting room
  • Special air supply duct for railway special vehicle meeting room
  • Special air supply duct for railway special vehicle meeting room

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The air supply duct of the railway special vehicle conference room of this embodiment, such as figure 1 , figure 2 As shown, the composition includes: a main air duct 2 hoisted on the roof steel structure 1, a secondary air duct 3 hoisted under the main air duct 2 along the longitudinal direction of the car body, and the secondary air duct 3 is composed of a hollow elongated profile A secondary air duct inlet 31 is provided along the longitudinal gap on the inner end wall of the secondary air duct 3, and the secondary air duct air inlet 31 is connected with the air outlet of the main air duct 2 through the connecting duct 4, and the secondary air duct 3 The outer end side wall is longitudinally provided with secondary air duct outlets 32, and the distribution density of the secondary air duct inlets 31 is lower than the distribution density of the secondary air duct outlets 32. The roof steel structure 1 is welded and fixed along the longitudinal gap with a hanging iron...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a special air supply duct for a railway special vehicle meeting room. The air supply duct comprises a primary air duct which is hoisted on a vehicle top steel structure and a secondary air duct which is hoisted below the primary air duct along the longitudinal direction of a vehicle body, wherein the secondary air duct consists of hollow strip sections; the side wall of the inner end of the secondary duct is provided with secondary air duct air inlets at certain intervals along the longitudinal direction; the secondary air duct air inlets are connected with the air outlets of the primary air duct through a connecting air duct; the side wall of the outer end of the secondary air duct is provided with secondary air duct air outlets along the longitudinal direction; and the distribution density of the secondary air duct air inlets is lower than that of the secondary air duct air outlets. In the invention, air in the primary air duct is introduced into the secondary air duct through the connecting air duct for undergoing primary decompression, and is blown out of the air outlets of the secondary air duct for undergoing secondary decompression, so that the air speed is lowered, the air speed at the air outlets is effectively lowered, noise is reduced, uniform and smooth air supply is ensured, participants of a meeting do not feel air flowing, stable decrease or increase of the temperature in a vehicle is ensured simultaneously, and the human comfort is improved greatly.

Description

Technical field [0001] The invention relates to an air supply duct for a conference room of a railway special vehicle, and belongs to the technical field of air ducts for an air conditioning system. Background technique [0002] The air-conditioning ventilating ducts and the air supply form of the meeting room of railway special vehicles are arranged according to the special requirements of the car body. In the past, the air-conditioning air supply form of the meeting room mostly used the mesh roof air supply. The air supply speed of the mesh type roof is demanding. Generally, the diameter of a single air supply hole is 3-7mm. The high air supply speed is prone to howling; the air supply speed is low and the cooling effect is poor. In addition, the number of top plate meshes is large and the area is large, in order to ensure uniform air supply and no dead air supply corners. There are tens of thousands of ventilation holes on the roof of the car, and the roof needs to be cleaned...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B61D27/00
Inventor 朱明于海飞何少雯
Owner CRRC NANJING PUZHEN CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com