Explore our foundational range of pressure vessels, LNG skid systems, treatment solutions, and thermal processing units engineered for industry-leading efficiency.
How the global shift toward green refrigerants and stringent carbon directives is reshaping thermodynamic design principles.
Operates beneath the critical point, ideal for cascade systems. These configurations manage high heat transfer coefficients but require precise pressure relief management to handle standstill pressures without venting refrigerant.
Specifically developed to manage gas cooler discharge temperatures. Designed to withstand pressures exceeding 120 bar, assuring continuous operation above the critical point during hot ambient periods.
Leverages low kinematic viscosity and high thermal conductivity of CO2. Achieves superior heat flux densities, which reduces heat exchanger footprints compared to conventional synthetic systems.
Established in June 2021 with a substantial registered capital of 78 million yuan, Hongke Qingneng has rapidly positioned itself as a leading innovator in energy conservation and environmental protection.
Operating from the Sanhe Economic Development Zone industrial base in Langfang City, our state-of-the-art facility is dedicated to the R&D and precision fabrication of energy-efficient process equipment. We specialize in designing and manufacturing high-performance pressure vessels, cryogenics equipment, gas liquefaction units, and custom industrial refrigeration systems.
By blending academic research with heavy industrial production capability, we deliver engineered systems that satisfy the most stringent global standards for containment, thermal efficiency, and operational safety.
Our core technologies are developed in partnership with leading Chinese scientific institutions, bringing laboratory precision to industrial heat transfer.
How we solve the key design challenges of R744: high-pressure containment, high heat flux density, and advanced oil management.
Carbon dioxide exhibits a exceptionally high heat transfer coefficient, meaning that R744 evaporators can operate with smaller internal channel volumes. However, to maximize this performance, our thermodynamic engineers optimize the surface roughness and micro-geometry of the tubes to encourage nucleate boiling and delay film boiling dry-out.
Additionally, because CO2's operating pressures are several times higher than HFC systems, our designs employ specialized materials such as heavy-wall stainless steel (grade 304 or 316L) or high-strength copper alloys (like CuFe2P) to prevent structural failure while maintaining high thermal conductivity.
| Parameters | Subcritical Systems | Transcritical Systems |
|---|---|---|
| Operating Pressure Range | 15 to 45 bar | 60 to 120+ bar |
| Evaporating Temperature | -45°C to -10°C | -15°C to +15°C |
| Primary Materials | SS304 / SS316L | Titanium / Heavy-wall Stainless Steel |
| Heat Transfer Configuration | Plate Heat Exchanger / Flooded Shell & Tube | Dry Expansion / Shell & Coil |
| Safety Valve Setting | 60 bar / 80 bar | 120 bar / 140 bar |
| Common Applications | Cascade Freezing, Gas Liquefaction | Heat Pumps, CCUS Gas Coolers |
Completed Skid-Mounted Liquefaction Systems
Independent R&D Patents & Intellectual Property
Ultra-Low Temperature Refrigeration Threshold
Special Equipment Licensing Standards
Leveraging state-of-the-art thermodynamics to solve environmental and natural gas engineering challenges globally.
We supply skid-mounted solutions for LNG, shale gas, coalbed methane, and BOG (Boil-Off Gas) helium extraction. Our systems feature customized heat exchangers operating between -40°C and -180°C.
Engineered multi-stage recovery and purification installations that condense volatile organic compounds out of gas streams using vacuum cold traps operating down to -135°C.
Highly effective mobile and centralized high-temperature steam sterilization systems designed for medical waste disposal, laboratory animal tissue, and biopharmaceutical wastewater.
In-depth responses to critical technical queries compiled by our senior thermodynamics and structural engineering team.
Explore our specialized range of emission controls, high-temperature sanitizers, and purification skids manufactured to strict global standards.
Hongke Qingneng