A microcomputer fully automatic calorimeter is a device used to measure the calorific value of material combustion, widely used in the calorific value measurement of fuels such as coal, petroleum, and biomass. It measures the heat released by burning the sample to calculate the calorific value of the fuel. The following is a detailed introduction to the microcomputer fully automatic calorimeter:

1、 Working principle

The working principle of the microcomputer fully automatic calorimeter is based on the quantitative combustion method and the law of energy conservation. The specific process is as follows:

Sample preparation: Grind the substance to be tested (such as coal samples, petroleum samples, etc.) to standard fineness, weigh the sample with standard mass, and place it into a crucible.

Oxygen bomb oxygenation: Place the crucible containing the sample into the oxygen bomb, seal it, and then fill it with high-pressure oxygen (usually 30 atmospheres).

Ignite and burn: Put the oxygen bomb into the calorimeter, ignite the sample through the ignition device, and make it burn in the oxygen bomb.

Heat measurement: During the combustion process, the heat released by the sample is transferred to the water in the calorimeter, causing the water temperature to rise. By measuring the change in water temperature, the total heat released during sample combustion can be calculated.

Calculate calorific value: Based on the mass of the sample and the measured heat, calculate the high and low calorific values of the sample.

2、 Main structure

The microcomputer fully automatic calorimeter usually consists of the following main parts:

Oxygen bomb: used for sealing and burning samples, capable of withstanding high-pressure oxygen environments.

Calorimetry pool: used to accommodate oxygen bombs and water, measuring the changes in water temperature during the combustion process.

Ignition device: used to ignite the sample in an oxygen bomb, usually using an electric ignition method.

Temperature sensor: used to measure changes in the water temperature of a calorimeter, usually using high-precision thermocouples or platinum resistors.

Control system: including a microcomputer controller, data acquisition system, and computer software, used to control the experimental process, collect temperature data, and calculate calorific value.

3、 Advantages and characteristics

High precision measurement: Using high-precision temperature sensors and advanced measurement algorithms, it can accurately measure the calorific value of the sample.

High degree of automation: The experimental process is automated, including sample oxygenation, ignition and combustion, temperature measurement, and calorific value calculation, reducing manual errors and work intensity.

Easy to operate: Through a user-friendly computer interface, operators can easily set up experiments and manage data.

Good protection: The oxygen bomb design strictly follows standards, ensuring standardized operation in high-pressure oxygen environments.

Widely applicable: It can measure the calorific value of various solid and liquid fuels and is widely used in industries such as coal, electricity, and petrochemicals.

4、 Application field

Coal industry: Measuring the calorific value of coal and its products for coal quality evaluation and energy utilization research.

Petrochemical industry: Measuring the calorific value of fuels such as petroleum and natural gas for fuel quality control and energy efficiency analysis.

Biomass energy: Measuring the calorific value of biomass fuels for the development and utilization of biomass energy research.

Environmental protection: Measuring the calorific value of waste combustion for waste treatment and energy recovery.

Power industry: Measuring the calorific value of power generation fuels for fuel management and power generation efficiency analysis.

5、 Precautions for use

Sample preparation: Grind the sample evenly to avoid measurement errors caused by uneven sample.

Oxygen bomb operation: Oxygen filling and ignition operations must be strictly carried out in accordance with specifications to ensure the sealing of the oxygen bomb.

Temperature measurement: Ensure the installation and calibration of temperature sensors to avoid temperature measurement errors.

Regular maintenance: Regularly inspect and maintain all components of the calorimeter to ensure its normal operation and measurement accuracy.

epilogue

The microcomputer fully automatic calorimeter has been widely used in the field of fuel calorific value measurement due to its advantages of high precision, automation, and easy operation. It provides reliable technical support for fuel quality control, energy utilization, and environmental protection. By proper use and maintenance, the performance of calorimeters can be fully utilized, contributing to the development of related industries.