Cases
Primary-Network Heating Station for a 2-Million-m² District Heating Zone in Northeast China
Built a new primary-network heating station for a 2-million-m² district heating area in a Northeast China city. SAMIT large plate heat exchangers handle heat transfer between the primary network (130/70 ℃) and the secondary network (85/60 ℃); each unit delivers 25 MW of heat duty, with 4 units in parallel meeting the 2-million-m² end-user demand.
2×600 MW Power Plant Closed-Cooling Water PHE
Supplied a closed-cooling-water PHE optimization scheme for a 2×600 MW supercritical coal-fired unit in Northwest China. SAMIT large plate heat exchangers handle heat exchange between closed cooling water and open reservoir water, with 18 MW per unit; 4 PHEs across 2 units, running 5 years without scaling.
Primary Brine Preheating for an 800 kt/a Ion-Exchange Membrane Caustic Soda Plant in Shandong
Supplied primary brine preheating plate heat exchangers for the ion-exchange membrane electrolyzer of a large chlor-alkali enterprise in Shandong. Using SAMIT titanium plate heat exchangers resistant to saturated chlorine-salt corrosion; after 3 years of operation, an opening inspection showed the plates as bright as new.
Waste-Heat Recovery Retrofit for a 300 kt/a Methanol Plant
Retrofitted the syngas waste-heat recovery system of a 300 kt/a coal-to-methanol plant, replacing the original shell-and-tube heat exchanger with a SAMIT fully-welded plate heat exchanger. Annual heat recovery is equivalent to 2900 t of standard coal, with an 11-month payback period.
Single-Stage Wort Cooling Retrofit for a 150 kL/Batch Brewery in South China
Retrofitted the wort cooling system of a brewery in South China, replacing the traditional two-stage tap-water + ice-water cooling with single-stage ice-water cooling using SAMIT shallow-corrugation plate heat exchangers. Saves 40% water, 30% electricity, and 800 t of standard coal equivalent per year.
Walking-Beam Reheating Furnace Closed-Circuit Cooling at a Hot Rolling Mill in North China
Provided a closed-circuit cooling water system for a newly-built 380 t/h walking-beam reheating furnace at a hot rolling mill in North China. SAMIT fully-welded plate heat exchangers handle the heat exchange between the closed-circuit cooling water (demineralized water) and the open-circuit cooling water (industrial water), with a single-unit heat load of 12 MW; two units in parallel meet the high-temperature cooling demand of the furnace bottom water beams and skid rails.
Dairy Pasteurization PHE Supply
Supplied SAMIT sanitary-grade plate heat exchangers for a 200 t/d fresh-milk line of a well-known North China dairy. A three-stage heat-recovery design achieves a 92% heat-recovery rate, with steam consumption only 1/8 that of conventional processes.
VLCC Central Cooling System
Supplied the central cooling system for a newly built 300,000 DWT VLCC for a domestic shipowner. SAMIT titanium plate heat exchangers handle heat exchange between seawater and central fresh water, with 9 MW per unit; three units in parallel meet the cooling demands of the main engine, auxiliary engines, and all other loads.
WFI Heat Exchange for Sterile Manufacturing Facility
Supplied a WFI (Water For Injection) temperature-control heat exchange system for the sterile manufacturing workshop of a multinational pharma company. SAMIT sanitary-grade 316L double-wall PHEs handle WFI temperature maintenance (80 ℃ storage / 65 ℃ circulation) and industrial-steam sterilization (121 ℃ SIP), with zero contamination risk.
Commercial Complex Central HVAC Plant
Complete central HVAC heat-exchange station solution for a 120,000 m² large commercial complex in the Yangtze River Delta. SAMIT plate heat exchangers handle chilled/cooling water exchange, paired with variable-frequency pumps and climate-compensation control, reducing overall energy consumption by 18%.