Company Profile:<\/p>\n
Our company specializes in the market development, product manufacturing, and after-sales technical services related to cryogenic liquefaction and separation technologies for various industrial gases. We provide users with complete technical solutions for mixed gas liquefaction and separation, as well as equipment commissioning and personnel training.<\/p>\n
Our R&D team consists of several PhDs and master\u2019s degree holders in chemical engineering, and we hold six patented technologies with independent intellectual property rights. Our power-free ammonia recovery unit for purge gas from synthetic processes in fertilizer plants has been successfully applied in over fifty enterprises across China, generating significant economic and environmental benefits. Our independently developed coalbed methane liquefaction (LNG) units have been successfully commissioned at Jincheng Anthracite Mining Group, Yangquan Coal Industry Group, and Chongqing Energy Group, with large-scale industrial projects currently underway.<\/p>\n
Our low-temperature recovery technology for polyethylene and polypropylene tail gas mixed hydrocarbons is a domestic innovation. Additionally, our new energy-efficient skid-mounted oxygen generation systems have been exported to several countries and regions.<\/p>\n
Main R&D Areas:<\/p>\n
\u2022 Gas expansion refrigeration systems and engineering applications<\/p>\n
\u2022 Mixed working fluid phase-change refrigeration systems and applications<\/p>\n
\u2022 Vacuum negative pressure refrigeration systems<\/p>\n
\u2022 Cryogenic liquefaction and distillation systems for gases<\/p>\n
\u2022 Multi-stream heat exchange simulation and application for mixed gases<\/p>\n
\u2022 Drying and purification of mixed gases<\/p>\n
Here is the English translation of your technical and product introduction:<\/p>\n
II. Working Principle of the Equipment:<\/p>\n
The KZO-50 type air separation unit is a device that uses cryogenic distillation to extract medical or industrial-grade oxygen from air. The process adopts a low-pressure turbine expansion cryogenic cycle principle to liquefy air. Then, using the different boiling points of liquid oxygen and liquid nitrogen, fractional distillation in the column produces oxygen with a purity above 99.5% for medical or industrial use. Liquid oxygen is pressurized to 15 MPa by a liquid oxygen pump, vaporized, and cooled for bottling. The air separation unit utilizes our patented \u201cair-cooled, foundation-free skid-mounted\u201d design. Photos of the patented components and unit equipment are provided in the attachment.<\/p>\n
III. Process Flow Summary:<\/p>\n
Air passes through a filter and enters the air compressor, where it is compressed to 1.2 MPa. After cooling, it flows into the purifier to remove moisture, CO\u2082, acetylene, and other impurities. The purified air then enters a heat exchanger, where it exchanges heat with return gases like oxygen and waste nitrogen. Waste nitrogen exits the distillation column and enters the turbine expander, which provides the primary cooling source after expansion. The liquefied air then throttles into the upper column, where oxygen is eventually obtained. Waste nitrogen is reheated via the cold box and heat exchanger, then used by the purifier during regeneration. Product oxygen is sent out after pressurization by the liquid oxygen pump.<\/p>\n
IV. Equipment Advantages:<\/p>\n
1. Fully skid-mounted and directly connected with high-pressure hoses, eliminating the need for users to invest in piping and valves between components\u2014reducing investment cost.<\/p>\n
2. Users only need to construct the equipment room, flooring, and lifting tools\u2014no other installation materials or tools are required.<\/p>\n
3. The use of an internal compression process via a liquid oxygen pump allows production of high-purity medical oxygen, fully compliant with medical standards, suitable for both medical and industrial use.<\/p>\n
4. Compact design with a small footprint.<\/p>\n
5. Foundation-free installation, stable operation, simple to operate and easy to maintain.<\/p>\n
6. The internal compression process minimizes future maintenance costs and enhances efficiency by bottling oxygen directly through the LOX pump.<\/p>\n
7. All components use the most advanced domestic technology, significantly reducing energy consumption and saving on electricity costs.<\/p>\n
8. The unit can produce approximately 20L of liquid oxygen when gas production is not required.<\/p>\n
9. Air-cooled system\u2014no need for a cooling water pool, saving infrastructure costs.<\/p>\n
10. Short installation and commissioning time\u2014typically completed within one month.<\/p>\n
11. This equipment has been exported to countries such as Syria, Sudan, and Nigeria, with successful one-time installation and commissioning, receiving high praise from foreign clients.<\/p>\n
12. Our oxygen generation units have been sold to over 40 countries and regions, and our installation engineers have extensive international experience.<\/p>\n
V. Auxiliary Units Description:<\/p>\n
1. Air Compressor:<\/p>\n
Screw-type air compressor with box-type structure and low noise. The integrated system includes air, lubrication, electrical, cooling, and control systems. Controlled by a PLC smart controller with a touch panel displaying all adjustable parameters and key operating data. Features include automatic protection, alarm, remote control, multi-unit linkage, and history recording. Supports unattended continuous operation.<\/p>\n
2. Pre-cooling Unit:<\/p>\n
Fully enclosed imported compressor with non-leaking refrigerant. High-efficiency water separators and automatic drains ensure no liquid water in outlet air. Imported refrigeration components support long-term continuous operation. The unit includes remote signal interfaces for inlet\/outlet temperature, start\/stop signals, and fault signals. Box-type structure, no foundation required\u2014easy installation.<\/p>\n
3. Purifier:<\/p>\n
Dual-adsorption tower structure\u2014one in operation, one in regeneration. Ensures clean air enters the distillation tower for longer operating cycles. Uses waste nitrogen for regeneration heating with automatic temperature control:<\/p>\n
a) If nitrogen temperature at the heater outlet exceeds 220\u00b0C, power is automatically cut off; it is restored when below 180\u00b0C.<\/p>\n
b) If regenerated nitrogen temperature at the outlet of the adsorption tower reaches 100\u2013110\u00b0C, heating stops automatically (customizable).<\/p>\n
4. Turbo Expander Unit:<\/p>\n
Manufactured by the Institute of Physics and Chemistry, Chinese Academy of Sciences, with extensive experience in turbine design. Features patented hydrodynamic and static pressure-bearing structure, strong anti-surge capability, high load capacity, low environmental sensitivity, and simple installation. Received the Academy\u2019s 2nd-class and the national 3rd-class Science & Technology Progress Awards in 1995 and 1999 respectively. High efficiency, low cold loss. Praxair, a global leader in air separation, orders several units annually for its operations.<\/p>\n
5. Distillation Column:<\/p>\n
Uses aluminum plate-fin heat exchangers for enhanced thermal efficiency and lower operating pressure, thus minimizing energy consumption. The column is equipped with a control panel; temperature, flow rate, and liquid level are displayed digitally\u2014clear and user-friendly.<\/p>\n
IX. Scope of Supply:<\/p>\n
1. Screw Air Compressor \u2013 1 set<\/p>\n
Includes:<\/p>\n
\u2022 Main unit (1 pc)<\/p>\n
\u2022 Oil-gas separator (1 set)<\/p>\n
\u2022 After-cooler (1 set)<\/p>\n
\u2022 PLC automatic controller (1 set)<\/p>\n
\u2022 90 kW motor (1 pc)<\/p>\n
\u2022 Anchor bolts (1 set)<\/p>\n
\u2022 Spare parts and technical documents<\/p>\n
2. Purifier \u2013 1 set<\/p>\n
Includes:<\/p>\n
\u2022 Adsorbers (2 pcs)<\/p>\n
\u2022 Molecular sieve (1 set)<\/p>\n
\u2022 Heater (1 pc)<\/p>\n
\u2022 Filter (1 pc)<\/p>\n
\u2022 Control cabinet (1 set)<\/p>\n
\u2022 Valves and pipelines (1 set)<\/p>\n
\u2022 Anchor bolts (1 set)<\/p>\n
\u2022 Technical documents and manuals<\/p>\n
3. Turbo Expander \u2013 1 set<\/p>\n
Includes:<\/p>\n
\u2022 Main unit (1 pc)<\/p>\n
\u2022 Filter (1 set)<\/p>\n
\u2022 Inlet and outlet silencers (1 set each)<\/p>\n
\u2022 Speed probe (1 set)<\/p>\n
\u2022 Instrumentation (1 set)<\/p>\n
\u2022 Valves and pipelines (1 set)<\/p>\n
\u2022 Technical documents<\/p>\n
4. Distillation Column \u2013 1 set<\/p>\n
Includes:<\/p>\n
\u2022 Column body (1 unit)<\/p>\n
\u2022 Perlite insulation (1 set)<\/p>\n
\u2022 Cold box (1 set)<\/p>\n
\u2022 Valves and pipelines (1 set)<\/p>\n
\u2022 Instrumentation (1 set)<\/p>\n
\u2022 Anchor bolts and technical documents<\/p>\n
5. Pre-cooling Unit \u2013 1 set<\/p>\n
Includes:<\/p>\n
\u2022 Main unit (1 pc)<\/p>\n
\u2022 Evaporator (1 pc)<\/p>\n
\u2022 Moisture separator (1 pc)<\/p>\n
\u2022 Instrumentation (1 set)<\/p>\n
\u2022 Valves and pipelines (1 set)<\/p>\n
\u2022 Documentation<\/p>\n
6. Liquid Oxygen Pump \u2013 1 set<\/p>\n
Includes:<\/p>\n
\u2022 Main unit (1 pc)<\/p>\n
\u2022 Motor (1 pc)<\/p>\n
\u2022 Instrumentation (1 set)<\/p>\n
\u2022 Technical documents<\/p>\n
7. Oxygen Filling Station \u2013 1 set<\/p>\n
Includes:<\/p>\n
\u2022 Main unit (1 pc)<\/p>\n
\u2022 Instrumentation (1 set)<\/p>\n
\u2022 Technical documents<\/p>\n
8. Connecting Pipelines \u2013 1 set<\/p>\n
9. Low-Voltage Distribution Cabinet \u2013 1 pc<\/p>\n
10. Oxygen Purity Analyzer \u2013 1 set<\/p>\n
XI. Delivery Time:<\/p>\n
Within 2 months after the contract becomes effective.<\/p>\n
XII. Service Terms:<\/p>\n
1. The complete oxygen generation system is covered under a one-year warranty from the date of commissioning.<\/p>\n
2. Our company will send 1\u20132 engineers to the customer\u2019s site for installation guidance and operator training.<\/p>\n
\u2022 Service fee: USD 100 per person per day, additional.<\/p>\n
\u2022 Duration: Approx. 15\u201330 days.<\/p>\n
\u2022 Before our engineers arrive, the customer must ensure power supply, hoisting equipment, and auxiliary materials are ready.<\/p>\n
\u2022 The customer is responsible for round-trip airfare, local accommodation, meals, transportation, insurance, and medical expenses.<\/p>\n
\u2022 If onsite service is not possible due to pandemic restrictions, remote startup guidance via WeChat is available. Technical service fee: RMB 10,000.<\/p>\n
3. Upon contract signing, we will provide a general layout drawing. All other necessary drawings will be delivered with the complete equipment set.<\/p>\n
XIII. Requirements from Customer (Construction Unit):<\/p>\n
a. Customer shall ensure power facilities are in place and power is available before our installation team arrives.<\/p>\n
b. Customer shall arrange 2\u20133 operators for onsite installation and training.<\/p>\n
c. Customer is responsible for positioning and hoisting of all equipment.<\/p>\n","protected":false},"featured_media":924,"template":"","product_category":[54],"class_list":["post-923","product","type-product","status-publish","has-post-thumbnail","hentry","product_category-industrial-oxygen-concentrator"],"acf":[],"_links":{"self":[{"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/product\/923","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/media\/924"}],"wp:attachment":[{"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/media?parent=923"}],"wp:term":[{"taxonomy":"product_category","embeddable":true,"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/product_category?post=923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}