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

Method for measuring heat productivity of heating substance for calorimeter

A measurement method and calorific value technology, which is applied in the field of measuring instruments, can solve problems such as the complexity of the cooling model, and achieve the effects of ensuring accuracy, ensuring accuracy, ensuring unidirectionality and stability

Active Publication Date: 2009-12-02
HUNAN SUNDY SCI & TECH DEV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the two-way working temperature curve is used in the main phase, the cooling model at the end of the test is relatively complicated, and it takes 5 minutes to complete the actual measurement

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
  • Method for measuring heat productivity of heating substance for calorimeter
  • Method for measuring heat productivity of heating substance for calorimeter
  • Method for measuring heat productivity of heating substance for calorimeter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] see Figure 4 As shown, a method for measuring the calorific value of exothermic substances used in a calorimeter of the present invention, a method for measuring the calorific value of exothermic substances used in a calorimeter, is characterized in that the steps are:

[0024] (1), take the air-dried sample and place it in the crucible, place the loaded crucible on the crucible support of the oxygen bomb, and install the ignition wire; add distilled water into the oxygen bomb, and fill the oxygen bomb with an appropriate amount of oxygen;

[0025] (2) Add an appropriate amount of water (such as 1L) into the inner barrel of the calorimeter, put the oxygen bomb into the inner barrel, and cover the lid;

[0026] (3) After starting the inner barrel to stir for about 5 minutes, the temperature of the inner barrel reaches the equi...

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 method for measuring the calorific value of a heat-generating substance used in a calorimeter. The steps are as follows: (1) take an air-dried sample and place it in a crucible, place the sample-filled crucible on an oxygen bomb crucible support, install Ignition wire; add distilled water to the oxygen bomb, and fill the oxygen bomb with an appropriate amount of oxygen; (2) Add an appropriate amount of water to the inner barrel of the calorimeter, put the oxygen bomb into the inner barrel, and cover the lid; (3) Start the stirring of the inner barrel to make the temperature of the inner barrel reach the equilibrium T0, and control the temperature of the outer barrel of the calorimeter to ensure that the entire temperature rise curve of the inner barrel is located between the ambient temperature and the temperature section of the temperature control point of the outer barrel during operation; (4) Power on Ignite and read the temperature of the inner barrel continuously. When the actual temperature rise of the inner barrel is zero, the main period of the experiment is over; (5) Calculate the calorific value of the sample according to the temperature rise and cooling correction calculation results of the main period, as well as the sample weight and other parameters. The invention is a measurement method capable of improving cooling correction accuracy and adopting a unique working temperature curve.

Description

technical field [0001] The invention mainly relates to a measuring instrument used for measuring the calorific value of coal, oil or other exothermic substances in coal, petrochemical or electric power industries, in particular to a method for measuring the calorific value of exothermic substances used in calorimeters. Background technique [0002] The calorific value is measured in a closed container (commonly known as an oxygen bomb). In the presence of excess oxygen, an appropriate amount of sample is ignited and fully combusted, and the calorific value is calculated from the increase in water temperature. In order to obtain reliable measurement results and reduce the heat exchange (radiation or heat absorption) between the inner barrel of the oxygen bomb and the surrounding environment due to the temperature difference, in the prior art, an outer barrel is generally arranged outside the inner barrel, and the temperature of the outer barrel is controlled. To eliminate the...

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): G01N25/44G01N5/00G01K17/00
Inventor 朱先德
Owner HUNAN SUNDY SCI & TECH DEV
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