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Maintenance-free vacuum heat-insulation fluid heat energy delivery pipe

A technology for vacuum insulation and conveying pipelines, applied in the direction of thermal insulation protection of pipelines, pipeline protection, pipes, etc., can solve the problems of large heat loss, low energy density of new energy, low temperature, etc., so as to reduce the heat loss rate and operating cost. , The effect of saving primary energy

Inactive Publication Date: 2015-03-25
肖英佳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low energy density, low temperature and high dispersion of new energy, in the process of development and utilization, the existing general-purpose insulation pipes have large heat loss and are no longer suitable for new energy urban power generation and heating projects.

Method used

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  • Maintenance-free vacuum heat-insulation fluid heat energy delivery pipe
  • Maintenance-free vacuum heat-insulation fluid heat energy delivery pipe
  • Maintenance-free vacuum heat-insulation fluid heat energy delivery pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 The diameter of the inner tube is φ300mm and the length is 10M. The base material of the inner tube is stainless steel or low-alloy steel, and the base material of the outer tube is carbon steel.

[0035] Embodiment 1 is applied to seawater, river water, sewage, and geothermal water in urban power generation, heating, and heating projects, or in traditional coal, oil, and natural gas thermal power generation, heating, and heating projects.

[0036] The maximum working temperature is 650°C, and it can be used in the delivery system of high-temperature and high-pressure steam for turbogenerators. Its heat loss is reduced from 10-30% of equivalent traditional insulated pipes to 1%.

Embodiment 2

[0037] Example 2 The diameter of the inner tube is φ1200mm and the length is 10M. The base material of the inner tube is carbon steel, and the inner surface is heat-treated. The base material of the outer tube is carbon steel, and the outer surface is treated with anticorrosion. Embodiment 2 is applied to the central heating project for power generation and central heating of biomass renewable energy, environment-friendly and low-carbon cities. It is suitable for domestic sewage in urban pipelines, geothermal water or technical transformation projects in existing urban central heating pipelines. Its heat loss rate is reduced from 10-30% to 1% per 10 kilometers (Km) of the same insulation pipeline, and correspondingly saves 90% of primary energy coal, oil, and natural gas.

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Abstract

An inner pipe, a seal body, an outer pipe, a flange and a seal valve are respectively connected integrally to form a maintenance-free vacuum heat-insulation fluid heat energy delivery pipe. The maintenance-free vacuum heat-insulation fluid heat energy delivery pipe is applied to a biomass renewable energy source environment-friendly low-carbon urban electricity generating and heat supply device or applied to traditional coal, petroleum, natural gas electricity generating and heat supply engineering. The heat supply efficiency is improved, heat loss is reduced, fuel is saved, carbon emission is reduced, and the electricity generating and heat supply cost is reduced. The heat energy loss of the pipe is reduced from 10%-30% to 1% per 10-kilometer delivery distance compared with heat energy loss of a same-class heat-insulation delivery pipe.

Description

technical field [0001] The invention relates to a thermal energy transmission pipeline. Background technique [0002] At present, in the traditional power generation and heating projects in cities that use coal and oil as energy sources, general-purpose thermal insulation heat transmission pipelines are mostly used to transport hot water or hot steam. The heat energy transported by the pipeline has a heat energy loss (heat loss rate) of 10-30% of the total transported heat energy for every 10 kilometers (km) of transport distance. A large amount of primary energy (coal, oil, natural gas) is wasted. In the future large-scale modern city construction and development, there will be development and utilization of urban low-temperature waste heat, piped domestic sewage, organic biomass waste, biomass fuel, and shallow low-temperature geothermal energy. Biomass renewable energy is environmentally friendly and ecologically green. The way of carbon power generation and heating sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/065F16L9/18F16K31/06F16K1/00
CPCF16L59/065F16K31/0627F16L55/07F16L59/04
Inventor 肖英佳
Owner 肖英佳
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