ZDHW-8 microcomputer fully automatic calorimeter

ZDHW-8 microcomputer fully automatic calorimeter

Adopting standards:

GB/T213-2008 "Method for determination of calorific value of coal", GB/T483-2007 "General determination of test methods for coal analysis", GB/T384-1981 "Method for determination of calorific value of petroleum products", GB/T30727-2014 "Method for determination of calorific value of solid biomass fuels" GB/T14402-2007Combustion performance of building materials and products - Determination of calorific value of combustion》JC/T1005-2006 "Method for determination of calorific value of cement black raw materials"ASTM D5865-13 "Standard Test Method for Gross Heating Value of Coal and Coke", ISO1928-2009 "Solid Mineral Fuel - Determination of Total Value and Calculation of Net Heating Value by Oxygen Bomb Calorimeter" CEN/TS 14918Method for determining the calorific value of solid biofuels》The BS SN 15400-2011Solid Recycled Fuel - Calorific Value Test IS：1350-1970Methods for determination of coal and coke》.

Scope of application:

Suitable for measuring the calorific value of solid or liquid combustibles such as coal, petroleum, cement raw materials, grain, feed, etc. in industries or departments such as electricity, coal, metallurgy, petrochemicals, coalification, environmental protection, cement, papermaking, geological exploration, agriculture and animal husbandry, pharmaceutical research, teaching, etc.

Performance characteristics:

The ZDHW-8 microcomputer fully automatic calorimeter adopts microcomputer control, maintains all computer functions, and can use various general-purpose software. It can automatically calibrate the thermal capacity of the calorimeter system and measure the amount of heat generated. Input data such as sulfur, moisture, hydrogen, etc. to convert and print out results such as cylinder heat generation, high-level heat generation, low-level heat generation, etc.

■ Quantitative measuring cup, accurate water quantification; The inner bucket does not need to be raised, is easy to operate, and is easy to maintain. Single head oxygen bomb, equipped with a compression method to secure the ignition wire, convenient, safe and reliable.

Large capacity outer cylinder water tank and backup water tank, with cooling function to ensure stable heat capacity and adapt to long-term continuous sampling; Adopting a modular microcirculation water cooling system, the heat dissipation can be determined based on the previous heat generation, balancing the inner cylinder water temperature to maintain a relatively constant temperature with the outer cylinder water temperature, reducing the impact of the environment on testing accuracy, and enabling continuous experiments. This solves the common problem of complex maintenance, frequent malfunctions, and the need for professional maintenance of compressor refrigeration fully automatic calorimeters in the past, saving customers a lot of time and making the testing process simpler and more comfortable.

■ Designed inner cylinder wateraccurateQuantitative system, automatic control of water injection and drainage, water injection heightaccurateThe drainage is clean, ensuring that the water volume in the inner cylinder is consistent each time, effectively ensuring the measurement accuracy of the system.

Adopting patented technology to achieve water purification and improve the reliability of instruments;

It has functions such as high and low position conversion, benchmark conversion, parallel sampling, automatic calculation of heat capacity, and manual recalculation;

Equipped with intelligent terminal functions, providing multiple network access methods, and combined with a data exchange center to achieve data sharing, real-time data can be uploaded to the management system.

Some components are imported, including precision temperature probes with a temperature resolution of 0.0001K, making the overall integrated circuit more stable and reliable.

Adopting power inverter and purification technology, the instrument operation is not affected by external voltage and power grid fluctuations.

The inner and outer bucket water systems are independent of each other and do not affect each other.

The oxygen bomb is made of heat-resistant and corrosion-resistant nickel chromium alloy steel, which transfers heat faster.

Fast testing speed, all data tested, true and reliable, without using software correction to change the test results.

■ Adoptingnew typeThe serial port technology adapts to the new development of computer technology, realizing multi control of one machine, testing each other without affecting each other, and data processing can be carried out during experiments, making it convenient for users to query data.

The testing software supports the Windows platform, has high stability, and can be networked to achieve remote data sharing.

Strong adaptability to the environment, with precision, accuracy, and stability meeting the requirements of national standards.

Technical parameters:

■ Heat capacity: approximately 10450J/K

Accuracy: The test results are within the allowable range of the standard sample

Heat capacity stability: Heat capacity change within three months ≤ 0.20%

■ Thermal capacity precision: ≤ 0.1%

■ External capacity: approximately 50L

■ Internal capacity: approximately 2.1L

■ Refrigerant cylinder capacity: approximately 5L

Quantitative bottle capacity: standard 2L

■ Temperature range: 0-40 ℃ (temperature change should be ≤ 1 ℃ per measurement) Relative humidity ≤ 80%

Measurement error:<0.2%

Test time: ≤ 15 minutes

■ Temperature resolution:>0.0001 ℃

■ Power: 0.7KW

Power supply voltage: AC220V ± 15% 50Hz

Standard configuration: ZDHW-8 host/Lenovo brand computer/laser printer