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Ventilation structure for railway tunnel

A tunnel and railway technology, applied in mine/tunnel ventilation, gas treatment, anti-corrosion coatings, etc., can solve the problems of exhaust pipes failing to purify air pollutants, train exhausts failing to disperse in time, and polluting the ecological environment. Portability, easy installation, and the effect of avoiding air pollution

Inactive Publication Date: 2019-04-12
NANJING INST OF RAILWAY TECH
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  • Description
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AI Technical Summary

Benefits of technology

This patented technology helps protect railways through efficient removal of harmful gas emissions like CO2 and SO2. By adding activated carbons that adsorbs these substances onto certain surfaces inside the train's duct system, they help clean out any unwanted materials before being released into space outside their body. Additionally, this design makes them easier to install on rails without causing environmental concerns due to waste products produced during manufacturing processes. Overall, this innovation enhance safety measures while reducing negative impact on human health caused by various sources including particulate matter (PM), nitrous oxides (NO2), volatile organic compounds (VOC).

Problems solved by technology

This patented technical problem addressed in this patents relates to reducing environmental impact caused by railway tunneling emissions containing nitrogen oxides (NO) and other hazardous substances like CO2. Existing methods involve boring pipelines from within the building's walls downwardly towards ground level, but they may also lead to contamination issues due to high levels of NOX produced during combustion processes.

Method used

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  • Ventilation structure for railway tunnel
  • Ventilation structure for railway tunnel
  • Ventilation structure for railway tunnel

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Experimental program
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Embodiment 1

[0022] The percentages of raw materials contained in the anticorrosion layer are set to be: titanium acetylacetonate 1.4wt%, melamine resin 3.6wt%, polyether resin 4.2wt%, acetic acid 11.4wt%, propionic acid 5.5wt%, glycerin 6.6wt% %, polyethylene resin 27.8wt%, polypropylene resin 39.5wt%, wherein the content of polyethylene resin, acetic acid and propionic acid is 44.7wt%. By placing a certain concentration of strong acid and strong alkali on the surface of the corrosion-resistant layer, including hydrochloric acid, sulfuric acid, and sodium hydroxide, after standing for 24 hours, the sampling has no change under the naked eye, and the structure of the corrosion-resistant layer has no obvious change under the microscope. , showing good corrosion resistance.

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Abstract

The invention discloses a ventilation structure for a railway tunnel. The ventilation structure sequentially comprises a protection frame, a shell, an electric motor, a pipeline and a filtering devicefrom left to right. A channel is installed in the shell, the electric motor is installed at one end in the channel through a fastening device, the fastening device comprises two sets of fixing rods and fixing sleeves, the other end of the channel is connected with the pipeline through a connecting base, the pipeline is fixed through a telescopic fixing frame, and the outer side of the shell is coated with an anti-corrosion layer. Harmful gases such as carbon monoxide and sulfur dioxide in the air can be effectively absorbed by installing an activated carbon box, so that the environment is prevented from being damaged by polluted ecological environment, meanwhile, the exhaust efficiency is effectively improved by installing fan blades and the electric motor, and polluted air in the tunnelcan be quickly and effectively purified.

Description

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Claims

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Application Information

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Owner NANJING INST OF RAILWAY TECH
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