Automatic Vertical Calorimeter for Precision Gross Calorific Value Determination

Product Overview

This automatic vertical calorimeter is a high-precision thermodynamic testing station engineered for determining the gross calorific value of solid and liquid combustible materials. By combining automated fluidics, dynamic thermal isolation, and microprocessor-controlled ignition in a space-saving vertical arrangement, this equipment streamlines routine analytical cycles while eliminating human error from volume measurement and temperature equilibration.

Designed to satisfy the rigorous throughput and precision standards of modern industrial facilities, this unit delivers vital thermal property data across coal mining operations, thermal power generation plants, metallurgical coke facilities, petrochemical refineries, and cement production lines. Its versatile combustion chamber and intelligent control logic accommodate diverse sample profiles, from raw coal and carbonaceous gangue to heavy fuel oils and cement raw materials.

Built for uninterrupted performance in high-workload laboratories, the system provides long-term operational consistency through heavy-duty isothermal construction and non-volatile parameter memory. Operators can process consecutive combustion runs with absolute certainty that thermal constants, calibration baselines, and test logs remain fully preserved, ensuring reproducible and audit-compliant calorific metrics under any operational condition.

Detail & Parts

Key Features

• Automated Quantitative Fluidics: The system integrates an automated liquid handling circuit that manages water charging, temperature balancing, and high-accuracy inner vessel dosing with a tolerance within ±0.1 g, completely removing volumetric variability between tests.
• Ultra-Sensitive Temperature Resolution: Equipped with a precision resistance thermometry circuit, the instrument resolves thermal shifts down to 0.0001 K, facilitating an overall calorific determination accuracy of 0.1% when calibrated against standard benzoic acid.
• High-Capacity Thermal Buffer Jacket: Featuring a double-walled architecture with a 40-liter outer water jacket and a 2.3-liter inner reaction bucket, the unit creates a stable isothermal barrier that shields the oxygen bomb from external room temperature swings.
• Embedded Microcontroller Architecture: A high-speed microcontroller orchestrates fluid transfer, mechanical stirring, sensor polling, and combustion timing autonomously, delivering repeatable thermodynamic cycles independent of operator expertise.
• Persistent Non-Volatile Memory: Calibration values, system heat capacity constants, and multi-run analytical histories are stored in dedicated non-volatile onboard memory, ensuring critical laboratory data is never lost during unexpected power interruptions.
• Prompt-Driven User Interface: The large-screen liquid crystal interface presents intuitive, step-by-step guidance through sample preparation and bomb sealing, allowing operators to launch complete 15-minute test cycles with minimal keypad interactions.
• Comprehensive Ignition Management: Incorporating an automated 24 V timed ignition sequence, the apparatus achieves rapid, complete sample deflagration inside the oxygen bomb while avoiding irregular heat spikes that distort calorimetric curves.
• Flexible Laboratory Connectivity: Designed for scalable laboratory workflows, the equipment can be configured with a high-speed communication port and dedicated supervisory software, enabling PC-based curve plotting, automated reporting, and LIMS connectivity.
• Standardized Multi-Industry Compliance: The operational algorithms natively conform to primary combustion testing protocols, allowing cross-industry deployment without requiring software modifications or supplementary mathematical conversions.

Applications

Technical Specifications

Why Choose This Product

• Engineered Thermodynamic Isolation: The massive 40-liter outer fluid envelope creates an isothermal buffer that isolates the oxygen bomb reaction from fluctuating laboratory room temperatures, guaranteeing baseline stability across changing seasons.
• Error-Proof Volumetric Automation: Automated fluid filling, precise quantitative water dosing within ±0.1 g, and regulated temperature matching minimize human touchpoints, ensuring that successive sample runs maintain identical heat capacities.
• Industrial Data Resilience: By keeping thermal calibrations, baseline heat constants, and test runs stored in non-volatile solid-state memory, this system protects critical laboratory records against power sags or accidental shutdowns.
• Turnkey Multi-Standard Compliance: Pre-configured analytical routines conform directly to major national and industrial standards for coal, cement, and petroleum products, allowing effortless deployment in accredited testing facilities.
• Scalable Laboratory Architecture: Whether operated as an independent workstation using the high-contrast onboard screen or integrated with PC-based supervisory networks via USB, this equipment scales to match your facility's automation requirements.

Contact our technical engineering team today to receive a formal quotation, request application testing details, or discuss custom laboratory data integration options for your facility.

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