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

A preheating mixing device and method for blending alcohol-based fuel into natural gas

A technology of alcohol-based fuel and mixing device, which is applied in the direction of fuel heating of turbine/propulsion device, turbine/propulsion fuel delivery system, charging system, etc., to achieve the effect of ensuring uniformity and uniformity

Active Publication Date: 2017-10-10
GUODIAN SCI & TECH RES INST +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no relevant report yet

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
  • A preheating mixing device and method for blending alcohol-based fuel into natural gas
  • A preheating mixing device and method for blending alcohol-based fuel into natural gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Preheating mixing device and method for blending alcohol-based fuel into natural gas

[0022] Such as figure 1 , a device for blending alcohol-based fuel into natural gas, comprising a fuel pipeline, a heating unit, a temperature measurement unit and a pressure measurement unit; the fuel pipeline sequentially includes a natural gas pipeline section 1, a contraction section 2, a high-speed mixing section 4, The expansion section 5, the low-speed mixing section 6 and the nozzle 7, the high-speed mixing section 4 near the constriction section 2 are branched with an alcohol-based fuel pipeline section 3; The oil bath heating device 9 of the fuel pipeline section and the electric heating sheet 10 arranged in the low-speed mixing section, the heating sheet 10 is wrapped on the pipeline; The first thermometer T1 between them, the second thermometer T2 located between the second heater 9 and the high-speed mixing section 4 on the alcohol-based fuel pipeline section ...

Embodiment 2

[0027] Example 2: The influence of the inner diameter ratio of the natural gas pipeline section and the high-speed mixing section on the uniformity of mixed gas

[0028] The OH* (OH autofluorescence) distribution can reflect the heat release intensity of the flame. Natural gas mixed with different proportions of alcohol-based fuels has different heat release intensity during combustion, so the OH* distribution is also different. The test of OH* distribution is obtained with ICCD (enhanced CCD) camera combined with BP308 / 10 narrow-band filter. The distribution of OH* in the flames of natural gas mixed with different proportions of alcohol-based fuels is different. The difference reflected is that the color distribution on the photos obtained by ICCD is different, which means that the flame heat release intensity in different regions is different. Therefore, if natural gas and alcohol-based fuel are blended uniformly, the color distribution of multiple photos obtained within a ...

Embodiment 3

[0030] Example 3: Effect of the ratio of length and inner diameter of the high-speed mixing section on the uniformity of mixed gas

[0031] In Example 1, the inner diameter of the high-speed mixing section is 3 mm, the length is 500 mm, and the length is about 167 times the inner diameter. In order to study the effect of the ratio of the length and inner diameter of the high-speed mixing section on the uniformity of the mixed gas, four other devices with different ratios were designed. The inner diameter of the high-speed mixing section is 3mm, and the lengths are: 420mm (ratio of length to inner diameter is 140:1), 450mm (ratio of length to inner diameter is 150:1), 540mm (ratio of length to inner diameter is 180:1) ) and 570mm (the ratio of length to inner diameter is 190:1), and the other pipe dimensions are the same as in Example 1. Use these 5 devices to blend alcohol-based fuel into natural gas according to the blending method in Example 1 (the blending ratio is 50%, th...

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 preheating mixing device and method for blending alcohol-based fuel into natural gas. The device includes a fuel pipeline and a heating unit; the fuel pipeline includes a natural gas pipeline section, a contraction section, a high-speed mixing section, an expansion section, a low-speed mixing section and a nozzle in sequence according to the flow direction of natural gas, and an alcohol-based fuel pipeline section is arranged at the end of the high-speed mixing section near the contraction section ; The heating unit includes a first heater set in the natural gas pipeline section, a second heater set in the alcohol-based fuel pipeline section and a third heater set in the low-speed mixing section. The application of this device and the preheating mixing method based on this device can evenly mix the alcohol-based fuel with natural gas after gasification, and can ensure that no condensation occurs during the mixing process. The combustion properties of the fuel are of great importance.

Description

technical field [0001] The invention relates to the field of energy fuels, in particular to a preheating mixing device and method for blending alcohol-based fuels into natural gas. Background technique [0002] Existing gas turbine power plants generally use a single fuel for combustion, such as natural gas or oil. Compared with natural gas and oil, alcohol-based fuels such as methanol seem to be more ideal fuels for gas turbines in some respects: they can achieve higher efficiency and greater power output; at the same turbine inlet temperature, alcohol-based fuels The combustion temperature is low (due to the lower flame temperature), so its combustion has lower NO X emission. Essentially no SO due to very low sulfur content in alcohol-based fuels 2 emissions problem. In addition, alcohol-based fuels burn cleanly, reducing the number of turbine components to be cleaned, helping to reduce maintenance costs. Blending alcohol-based fuels in natural gas can improve the co...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/22F02C7/224
Inventor 刘志坦邵卫卫郝洪亮张哲巅王凯肖云汉王文飞李玉刚熊燕常连成张涛朱鸿飞
Owner GUODIAN SCI & TECH RES INST
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