Explore our foundational range of customized pressure vessels, LNG skid systems, purification assemblies, and VOC treatment platforms engineered to strict global requirements.
Addressing the complex engineering challenges of natural refrigeration, transcritical dynamics, and extreme temperature thermal management.
Carbon dioxide (R744) has emerged as the premier green refrigerant due to its ozone depletion potential (ODP) of 0 and global warming potential (GWP) of 1. However, operating at near-critical and supercritical pressures requires unmatched mechanical integrity and process engineering. A high-efficiency CO2 evaporator must manage high mass flux rates, rapid pressure drop variations, and micro-channel boiling phase transitions.
At Hebei Hongke Qingneng Environmental Protection Equipment Co., Ltd., our engineering methodologies focus on maximizing the inner tube heat transfer coefficient. By optimizing inner grooved geometries and maximizing nucleate boiling, our CO2 systems withstand design pressures exceeding 120 bar, maintaining high volumetric heat capacity even under extreme thermal transients.
One of the primary concerns in subcritical and transcritical CO2 cooling systems is the oil-refrigerant miscibility curve. At very low temperatures (-40°C to -180°C), traditional lubricating oil tends to separate and form a thermal resistance layer on the internal surfaces of the evaporator tubes. Our R&D team mitigates this via advanced oil separation skid structures and active return technologies.
By implementing precise flow velocity modeling and proprietary shell-and-tube layouts, our evaporators maintain structural velocities that sweep the oil film forward without compromising pressure drop profiles. This ensures long-term operational efficiency and prevents compressor starvation in large-scale industrial cold chains and gas separation installations.
Our company is fully engaged in the design and manufacturing of various pressure vessels, medical waste high-temperature steam treatment equipment, animal tissue (residue) treatment equipment, biological wastewater (live toxic wastewater) treatment systems, and skid-mounted assemblies for complex gas purification.
Through integration of academic knowledge from Tsinghua University and the Institute of Physics and Chemistry Technology, Chinese Academy of Sciences (CAS), we deploy robust technologies in industrial refrigeration, coalbed methane/shale gas/natural gas purification & liquefaction, VOC treatment, chemical tail gas treatment, and BOG tail gas helium extraction.
Driven by industry-leading thermodynamic researchers from the Chinese Academy of Sciences (CAS) and national laboratory backgrounds.
How we address the complex infrastructure challenges across the refrigeration, gas processing, and environmental sectors.
By leveraging partnerships with CAS and Tsinghua University, we bridge the gap between academic thermal equations and real-world industrial machinery. Our specialized design tools simulate phase behavior in multi-component mixtures, ensuring our CO2 evaporators achieve optimal performance under fluctuating thermal loads.
Our manufacturing workflow is backed by an A2-level Pressure Vessel License, Pressure Pipeline Component Manufacturing License, GB/T19001-2016 quality system, and Sinopec HSSE / China Petroleum HSE management system certifications. We are verified to design and fabricate vessels that meet high safety requirements.
Our skid-mounted environmental units, BOG recovery modules, and cryogenic heat exchangers contribute directly to regional air pollution prevention, resource conservation, and carbon emission reductions, aligning industrial performance with ESG criteria.
| Application Category | Equipment Type / Solution | Key Performance Indicator |
|---|---|---|
| Industrial Refrigeration | -40℃ to -180℃ Cryogenic Machines & CO2 Subcritical Systems | COP optimized via mixed working fluids, high temperature precision control |
| Gas Treatment & Recovery | Skid-Mounted Natural Gas / Coalbed Methane Liquefaction Plant | Helium extraction capability, heavy hydrocarbon removal, BOG utilization |
| Environmental Treatment | Centralized Medical Waste Steam Treatment & Hydrolysis | 100% biological disinfection, high-temperature corrosion-resistant vessels |
| Emission Mitigation | VOC and Chemical Tail Gas Adsorption / Desulphurisation | Low energy footprint, strict compliance with global emission standards |
Demonstrating our ability to deliver turnkey solutions from laboratory design to heavy industrial operations.
High-temperature steam treatment and high-pressure hydrolysis systems for laboratory biosecurity and clean residue management.
Self-contained high-temperature steam systems deployed on-site for rapid medical waste sterilization in remote areas.
Decentralized skid-mounted liquefaction unit capturing associated natural gas and coalbed methane on site.
Industrial automation steam autoclaves handling large daily throughput volumes with automated load-unload modules.
How we prepare our industrial and refrigeration designs for the evolving regulations of global markets.
Implementing microchannel heat exchange arrays with optimized plate fin designs to double heat transfer coefficients in extreme pressure environments.
Developing customized multi-component mixed working fluid cycles to lower energy inputs in shale gas and low-temperature storage systems.
Integrating real-time thermal analysis and vibration monitors into skid layouts to provide predictive alerts on structural fatigue.
Navigating varying regulations in Europe (PED 2014/68/EU), North America (ASME Sec VIII Div 1), and Asia requires a strict compliance framework. Our manufacturing facilities are equipped to manage full material traceability, weld inspectability, and hydrostatic testing.
Our technical services provide installation supervision, pre-commissioning documentation, and performance tuning for skid assemblies. This minimizes local setup times and ensures compliance with plant-specific regulatory standards.
Providing expert technical insights into CO2 heat exchangers, pressure vessels, and skid-mounted plant deployments.
Explore our complete range of high-temperature sterilization, gas processing, and non-standard custom pressure vessels.
Connect directly with our engineering team for customized design services and layout proposals.
Hebei Hongke Qingneng Environmental Protection Equipment Co., Ltd. provides customized design, fabrication, and performance certification for high-pressure CO2 evaporators, gas processing skids, and sterilization equipment.
For custom design consultations, thermodynamic cycle evaluations, or system drawings, submit your technical requirements and our engineering team will respond with a layout proposal.
Hongke Qingneng
