In 2025, Dianshi Instrument continued to deepen its expertise in the field of engineering thermophysics research equipment. Focusing on cutting-edge experimental needs and key technological breakthroughs, the company successfully launched multiple high-precision, high-performance specialized devices, further solidifying its technical advantages in areas such as combustion diagnostics, thermal environment simulation, and energetic materials analysis.

From the Heat Island to the Integrated Experimental Chamber, and from the High-Temperature and Turbulent Constant-Volume Bombs to the Flat-Flame Burner, Counterflow Burner, Ammonia Secondary Burner, and the High-Sensitivity Leak Detection Instrument—each product embodies the team's profound understanding of scientific challenges and rigorous pursuit of engineering excellence. These innovations reflect the company’s professional commitment to serving clients and supporting scientific research.

As the year draws to a close, we have curated a showcase of our key R&D achievements throughout the year. This is not only to summarize our technological progress but also to highlight our future direction: to support universities, research institutions, and enterprises in their innovative explorations in energy, power, and low-carbon technologies with smarter, more reliable, and research-oriented equipment. Below is a review and highlight of some of our core products from this year.

In 2025, Dianshi Instrument introduced two standout products in its Experimental Chamber series—the Heat Island and the Integrated Experimental Chamber.

The Heat Island, developed by Dianshi Instrument, enables the creation of a composite experimental environment (high temperature, low temperature, high pressure, low pressure, oxygen-rich, oxygen-lean). It allows real-time monitoring, observation, recording, and product analysis during experiments, capturing critical parameters such as ignition points, heat values, mass loss, and product composition. This makes it ideal for studying the combustion or pyrolysis characteristics of materials.

The newly upgraded benchtop Heat Island device can be used for studying material pyrolysis and combustion tests. Materials are placed on the material platform through the upper material loading window of the device, and ignition is achieved using either the resistance wire ignition device or the laser ignition device located above the material platform.

The device is equipped with two gas inlet lines, allowing the creation of various combustion atmospheres, including different pressures and gas compositions. During experiments, a high-speed camera is mounted at the front and can be triggered synchronously with ignition. A pressure sensor and a high-temperature thermocouple are installed at the top to record the entire experimental process. The device also includes one exhaust line and one gas detection line.

This Heat Island developed by Dianshi Instrument has also successfully demonstrated the feasibility of achieving low temperatures ranging from -70°C to an extreme -140°C in a laboratory environment. It showcases application potential in various areas, including fundamental scientific research support for energetic materials, high-end industrial testing, and process development validation.

The Dianshi Instrument Integrated Experimental Chamber enables the coupling of multiple environmental factors (such as temperature, pressure, and atmosphere) to conduct various tests on batteries, including puncture, crush, overcharge, over-discharge, short circuit, temperature cycling, ignition, and fire suppression. It is designed for comprehensive performance testing of battery cells and small battery modules.

The Integrated Experimental Chamber developed by Dianshi Instrument is a comprehensive and reliable battery safety testing device that closely simulates real-world risk environments. Based on this testing platform, it can better support the development of advanced batteries and breakthroughs in thermal runaway suppression technologies.

Furthermore, to meet the demand for composite experimental environments, Dianshi Instrument also offers walk-in integrated experimental chambers and ultra-large integrated experimental chambers for selection.

In 2025, Dianshi Instrument successfully delivered two products from its Constant Volume Bomb series to customers—the High-Temperature Constant Volume Bomb and the Turbulent Constant Volume Bomb. Both customized high-end devices have received high praise from users.

The High-Temperature Constant Volume Bomb developed by Dianshi Instrument can reach a maximum heating temperature of 600°C. It is used to study the combustion and explosion characteristics of materials under high-temperature and composite environmental conditions. The device enables real-time monitoring and observation of experimental processes, supports data acquisition and product analysis, and is suitable for research on laminar combustion, single-event combustion, and continuous combustion.

The delivery of the High-Temperature Constant Volume Bomb has effectively supported the innovative research and development of unmanned aerial vehicle (UAV) power systems and hydrogen energy technologies, providing crucial technical support for breakthroughs in core technologies within the low-altitude economy and new energy sectors.

The Turbulent Constant Volume Bomb developed by Dianshi Instrument is capable of creating turbulent environments. It can be used to study experiments such as premixed flame combustion and fuel spray combustion, enabling real-time monitoring and observation of experimental processes while supporting data acquisition and product analysis.

Based on customer requirements, Dianshi Instrument has custom-designed a 15L Turbulent Constant Volume Bomb experimental device. This Constant Volume Bomb is a combustion testing equipment capable of creating various experimental conditions, including high pressure, high temperature, multiple gas atmospheres, arc ignition, and turbulence. It enables the ignition and combustion of materials within the chamber, generates turbulent environments, and provides the necessary conditions for analyzing gas products after combustion. The delivery of this project will effectively support related research in the energy and power fields, offering essential equipment support for breakthroughs in core technologies within these areas.

In addition to these two Constant Volume Bomb devices, Dianshi Instrument also offers a variety of multi-purpose Constant Volume Bomb products, such as spherical constant volume bombs, cylindrical constant volume bombs, and explosion limit detectors, to support the study of combustion and explosion characteristics.

In 2025, Dianshi Instrument delivered multiple burner products, including standardized flat-flame burners as well as non-standard counterflow burners and ammonia secondary burners, contributing to the study of material combustion characteristics.

The flat-flame burner can generate a one-dimensional gas combustion flame with uniform temperature in the width direction, supports the combustion of fuel mixtures, and is suitable for mass combustion analysis (such as the study of single solid particle combustion characteristics and solid powder jet combustion characteristics). It can meet the research needs of various combustion methods, including premixed combustion, laminar combustion, counterflow combustion, and spray combustion.

The flat-flame burner introduced by Dianshi Instrument supports gas, liquid, and solid multiphase combustion. It can generate both laminar and turbulent flames and perform premixed or non-premixed combustion experiments under various conditions such as variable pressure, low oxygen, and oxygen-rich environments. This burner is suitable for studying combustion flow fields, combustion temperature fields, combustion velocity fields, flame structures, soot flow fields, soot concentrations, and more. It can also be integrated with laser combustion diagnostic instruments such as planar laser-induced fluorescence (PLIF), particle image velocimetry (PIV), and high-speed cameras.

The Opposed Burner is an experimental device specifically designed to study flame stability and combustion characteristics. This non-standard customized burner features a basic design in which two or more burners are positioned opposite each other, with fuel and oxidizer streams impinging directly against one another, creating a stable flame region between them. This setup is particularly suitable for precisely controlled studies under laboratory conditions.

This burner can strongly support scientific research in the field of engineering thermophysics, including flame stability and propagation characteristics, turbulent combustion, pollutant formation mechanisms, high-temperature corrosion and pyrolysis of materials, and more. It also facilitates the development of new combustion technologies.

This year, this customized opposed burner achieved its first international delivery, successfully reaching the world-renowned National University of Singapore. This milestone signifies that the expertise and achievements Dianshi has accumulated in the field of engineering thermophysics research equipment have gained recognition from top international academic institutions.

This device was specifically designed to optimize the ammonia fuel combustion process for the collaborating institution. Its core principle lies in employing a two-stage combustion strategy: the flue gas generated in the first stage enters the second stage in a closed state, where it undergoes secondary combustion in a standard gaseous flame environment. This approach effectively addresses technical challenges such as slow ammonia combustion rates, poor stability, and high nitrogen oxide emissions.

The customized ammonia secondary burner developed by Dianshi Instrument features unique two-stage combustion technology and precise control capabilities. It can overcome core technical challenges in ammonia combustion, such as ignition, flame stability, high efficiency, and low emissions. This accelerates research into the application of ammonia as a zero-carbon fuel in energy, transportation, and other fields, providing robust support for the "Dual Carbon" strategy and the goal of domestic equipment localization.

The leak detection instrument developed by Dianshi Instrument is a high-precision, non-destructive airtightness testing device. Using air as the detection medium and employing a differential pressure detection method, it is designed for testing the airtightness, waterproofing, and leakage properties of automotive components, medical equipment, consumer electronics, outdoor equipment, and laboratory sealing devices (such as reaction vessels and vacuum furnaces).

This leak detection instrument adopts the differential pressure measurement principle, offering high measurement accuracy with a resolution of 0.1 Pa. It can automatically execute the pressurization, pressure holding, testing, and recording processes. Data is displayed and stored in real time, and the device features multiple communication modes, enabling easy integration into various production lines and assembly equipment. It is user-friendly and delivers exceptional performance.

In 2025, Dianshi Instrument, guided by the principle of "anchored in research needs and driven by technological innovation," delivered an impressive and substantial performance in the field of engineering thermophysics research equipment. Each high-quality device embodies the relentless pursuit of scientific exploration and practical application. These achievements not only highlight Dianshi Instrument’s robust capabilities in the independent research and development of high-end scientific equipment but also reflect the company’s commitment to serving the national "Dual Carbon" strategy and empowering energy transformation, technological self-reliance, and innovation.

Galloping forward with steadfast determination, Dianshi stands alongside its partners! As we look ahead to the promising year of 2026, Dianshi will continue to leverage intelligent, reliable, and research-focused high-end scientific equipment to support global researchers in exploring the unknown, pushing boundaries, and collectively painting a new vision for green, low-carbon technological innovation!