China Leading Vacuum Vessel Supplier & Manufacturers

Hebei Hongke Qingneng Environmental Protection Equipment Co., Ltd. — Industrial Cryogenic Engineering, High-Vacuum Non-Standard Pressure Vessels, and Natural Gas Liquefaction Systems.

Academic Leadership & Solid R&D Foundation

Direct technology transfer from the Institute of Physics and Chemistry Technology, Chinese Academy of Sciences (CAS).

Tsinghua & CAS Collaboration

Rooted in elite national academic collaborations, our design methods leverage top thermodynamic research of CAS and Tsinghua University.

A2 Pressure Vessel License

Fully authorized design & manufacturing licenses for Type A2 Pressure Vessels and Class GB/T19001-2016 quality system certifications.

Intellectual Property Portfolio

Holding 20+ national invention and utility patents specifically targeting gas recovery, cryogenic insulation, and high-pressure sealing.

Dr. Sun Zhaohu - Founder
Founder & Chairman

Dr. Sun Zhaohu

PhD from the Institute of Physics and Chemistry Technology, Chinese Academy of Sciences (CAS). National Senior Engineer. Presided over the National 863 Program, Aerospace and Military Cryogenic Projects, and the CAS Major Knowledge Innovation Program. Awarded the Special Prize of Technological Invention of the Chinese Society of Refrigeration (2015) and the First Prize of Beijing Science and Technology Award (2016).

Dr. Zou Xin - General Manager
General Manager

Dr. Zou Xin

PhD candidate and Senior Engineer of the Institute of Physics and Chemistry Technology, CAS. Lead researcher on "12th Five-Year Plan" national major science and technology projects. Published 24 academic papers (11 SCI/EI indexed), holding 5 national patents. Winner of the 2017 Silver Medal at the 19th China International Industry Expo.

Dr. Cheng Kuwei - Chief Engineer
Chief Process Engineer

Dr. Cheng Kuwei

Doctor of Engineering from the Institute of Physics and Chemistry Technology, CAS. Recognized globally for research on "Skid-mounted Natural Gas Liquefaction Units with Series of Specifications." Expert in phase change heat transfer characteristics and multi-component mixed working medium thermodynamics.

Hebei Hongke Qingneng Environmental Protection Equipment Co., Ltd.

Registered Capital: 78 Million Yuan | Core Production Base: Sanhe Economic Development Zone, Langfang

Established in June 2021, Hebei Hongke Qingneng Environmental Protection Equipment Co., Ltd. stands at the absolute forefront of energy conservation, cryogenic technologies, and environmental industrial manufacturing. We are dedicated to providing state-of-the-art non-standard pressure vessels, high-vacuum thermal separation equipment, skid-mounted natural gas/CBM purification and liquefaction facilities, biological wastewater treatment reactors, and VOC control solutions.

Through engineering excellence and a strict quality assurance protocol, we bridge the gap between academic thermal research and industrial applications. Our mission is to support global energy developers, research laboratories, and municipal institutions in reducing their carbon footprint while ensuring total operational safety.

Hebei Hongke Qingneng Industrial Plant Facility

Engineering Case & Commissioning Demos

Proven execution capacity across cryogenic liquefaction plants, animal residue treatment, and medical waste management.

Laboratory Animal Residue Harmless Treatment

Laboratory Animal Residue Harmless Treatment

High-pressure thermal hydrolysis system for pathogen elimination in Biosafety level facilities.

Mobile Medical Waste Disposal Equipment

Mobile Medical Waste Disposal Unit

Containerized high-temperature steam sterilization system for decentralized emergency response.

Well Gas Liquefaction Project

CBM/Well Gas Liquefaction Plant

High-efficiency skid-mounted liquefaction unit deployed for gas recovery and storage.

Centralized Medical Waste Sterilizers

Centralized Medical Waste Steam Treatment

High capacity automated autoclave units for municipal bio-hazard treatment facilities.

78M

Registered Capital (RMB)

20+

National Core Patents

50+

Skid-mounted Plant Deployments

-196℃

Ultra-Cryogenic Limit

Our Core Manufacturing Pillars

Engineered performance across gas recovery, non-standard vessels, and industrial thermal containment.

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Bio-Hazard Control

  • Centralized medical waste high-temperature steam sterilization systems
  • Mobile truck-mounted containment disposal modules
  • Laboratory animal tissue and carcass hydrolysis reactors
Gas Field Icon

Gas Processing

  • Skid-mounted natural gas/associated gas liquefaction units
  • Acid gas sweetening, dehydration, and heavy hydrocarbon removal skids
  • Total lifecycle plant engineering
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Non-Standard Vessels

  • Double-walled vacuum insulated storage vessels
  • High-pressure Shell & Tube heat exchangers
  • Non-standard custom chemical reactors & columns
Cryogenics Icon

Cryogenic Systems

  • Refrigeration engines (-40 ℃ to -180 ℃)
  • Freeze-drying vacuum chambers (-70 ℃ to -100 ℃)
  • Ultra-low temp vacuum cold traps (-135 ℃)

Industrial Whitepaper: Engineering Criteria for Advanced Vacuum & Cryogenic Pressure Vessels

Author: Technical Committee of Hebei Hongke Qingneng Environmental Protection Equipment Co., Ltd.

1. Introduction to High-Vacuum Thermal Boundary Technology

In modern petrochemical processing, aerospace engineering, bio-waste control, and liquefied natural gas (LNG) logistics, the containment of volatile fluids at cryogenic states demands pressure vessels of exceptional thermal resistance and structural integrity. Standard pressure vessels rely solely on physical insulation materials to limit ambient heat leakage. In contrast, vacuum vessels utilize an evacuated annular space—often paired with multi-layer insulation (MLI) blankets—to virtually eliminate convective and conductive heat transfer mechanisms. As a leading China vacuum vessel manufacturer, our designs are optimized to withstand structural buckling while sustaining deep-vacuum environments below 1x10^-4 Pa over multi-decade lifecycles.

2. Macro Solution Framework: Global Energy and Environmental Transition

The worldwide industrial shift toward carbon neutrality and clean energy recovery has escalated the requirement for high-integrity processing equipment. Gas capture projects (such as recovery of coalbed methane, associated petroleum gas, and shale gas) require modular, skid-mounted systems capable of processing gas directly at the wellhead. Without highly specialized purification and liquefaction modules, valuable gases are flared, leading to major carbon output and financial loss.

Furthermore, municipal biosafety requires rigid sterilization systems. High-temperature, high-pressure steam processing is now the gold standard for centralized medical waste treatment and laboratory animal pathogen containment. Our structural engineers design autoclaves, autoclaved reactors, and thermal hydrolysis vessels to tolerate continuous pressure cycling without material fatigue, ensuring absolute biological containment.

3. Materials Engineering & Cryogenic Structural Reliability

Selecting appropriate alloys for cryogenic services (down to -196°C for liquid nitrogen, or -269°C for liquid helium) is critical to preventing brittle fracture. Hebei Hongke Qingneng uses austenitic stainless steels (such as 304, 304L, 316, and 316L) alongside specialized nickel alloys. Our thermal design protocols incorporate:

  • Finite Element Analysis (FEA): Simulating thermal stresses at nozzle junctions, saddle supports, and vacuum jacket boundaries.
  • Evacuated Annular Layer Maintenance: Integrating highly reactive chemical getters inside the vacuum space to absorb residual outgassing from metals and insulation layers over time.
  • Multi-Layer Insulation (MLI) Technology: Applying high-density reflective shields separated by thin spacers to drastically restrict radiative heat transfer.

4. Quality Control & International Compliance Framework

Our manufacturing plant strictly aligns with global regulatory standards. Being a certified A2-level manufacturer under the Special Equipment Licensing Authority of China (SELO), we employ extensive testing methods including:

  1. Helium Mass Spectrometer Leak Detection: Every vacuum vessel undergoes vacuum spray testing to detect micro-leaks down to 1x10^-10 Pa·m³/s.
  2. Radiographic (RT) & Ultrasonic Testing (UT): 100% inspection of critical pressure-bearing welds to ensure zero internal voids.
  3. Hydrostatic & Pneumatic Proof Testing: Validation under maximum allowable working pressures (MAWP) according to code regulations.

5. Technical Application Scenarios

Our technology portfolio addresses four key areas:

  • LNG and Bio-LNG Liquefaction: Compact, skid-mounted plants featuring mixed refrigerant cycles (MRC) designed for easy deployment to remote wells.
  • Voc Exhaust Treatment & Condensation: Deploying cryo-condensation systems that recover high-value hydrocarbons from industrial exhaust streams.
  • Pathological and Clinical Waste Autoclaving: Centralized autoclaves equipped with vacuum-assisted air extraction systems to ensure steam penetrates deeply into dense waste loads.
  • Helium and BOG Recovery: High-vacuum insulated storage tanks engineered to store Boil-Off Gas (BOG) and extract high-purity helium, protecting crucial strategic elements.

Custom Manufacturing & Process Excellence

Take a closer look at our custom fabrication units, mechanical testing beds, and heavy welding yards.

Fabrication Yard 1
Fabrication Yard 2
Fabrication Yard 3
Fabrication Yard 4

Frequently Asked Questions (FAQ)

Expert answers regarding vacuum vessels design, cryogenic insulation, and manufacturing lead times.

Q1: What design standards do Hebei Hongke Qingneng vacuum vessels follow?

Our engineering team designs and manufactures pressure vessels in strict compliance with the GB150 Chinese national standard and the ASME Boiler and Pressure Vessel Code Section VIII Division 1 & 2. We can provide standard factory data packets, NDT reports, hydrostatic certificate sheets, and all documentation required by international inspectors.

Q2: How does Hebei Hongke Qingneng maintain vacuum integrity over long periods?

We use a multi-step outgassing protocol combined with high-performance chemical getters installed inside the vessel's vacuum annulus. The inner vessel is cleaned to ultra-pure levels to avoid hydrocarbon contamination. Finally, we execute a long-duration thermal baking process while pulling vacuum to ensure all micro-moisture and trapped gases are fully evacuated before sealing the vacuum port.

Q3: Can your skid-mounted LNG and purification units handle highly sour gas (high H2S/CO2)?

Yes. Our purification skid solutions feature dedicated deacidification and dehydration modules specifically designed to handle sour gas. We implement corrosion-resistant alloys (CRAs) or clad steel vessels alongside specialized amine sweetening processes to reduce acidic components to levels acceptable for liquefaction or pipeline injection.

Q4: What makes high-temperature steam medical waste treatment safer than incineration?

High-temperature steam sterilization operates in a closed system, eliminating toxic stack gas emissions such as dioxins, furans, and heavy metal vapors that result from incineration. By utilizing automated pressure-pulsing cycles, steam completely sanitizes biological pathogens while retaining all waste material within a single pressure vessel, ensuring environmental safety and regulatory compliance.

Q5: What range of temperatures can your industrial refrigeration and vacuum freeze dryers support?

Our refrigeration machines operate efficiently down to -40°C to -180°C. For vacuum freeze-drying and vapor trapping, our equipment regularly maintains stable temperatures ranging from -70°C to -135°C, ensuring rapid capture of volatile solvents and quick moisture sublimation under deep vacuum.

Q6: Do you supply custom non-standard sizes, and what is your design lead-time?

Custom non-standard engineering is our core specialty. After receiving your process requirements (flow rate, temperature, pressure profile, chemical composition), our R&D platform delivers a complete structural design, FEA simulation, and 3D CAD modeling within 2 to 3 weeks, followed by streamlined production in our Langfang facility.

Collaborate with CAS Cryogenic Specialists Today

Whether you require high-vacuum insulation containment, biological waste autoclaving, or skid-mounted liquefaction facilities, our specialized engineering team is ready to deliver.

Request Technical Proposal