Domestic Hot Water Unit
The domestic hot water unit is a fully integrated, skid-mounted thermal system purpose-built for large-scale, continuous domestic hot water demand. It delivers stable, hygienic, and adjustable hot water temperatures through high-efficiency heat conversion and precise heat exchange cycles, realizing constant-temperature, constant-pressure, and uninterrupted hot water supply. Adopting standardized and modular design, the unit integrates high-performance plate heat exchangers, circulating pump sets, intelligent control systems, pressure stabilization compensation devices, and complete valve pipeline assemblies.
The unit supports both water-to-water and steam-to-water heat exchange modes with flexible configuration options according to on-site process conditions. Replacing traditional decentralized hot water equipment, this centralized hot water package achieves standardized and intelligent hot water management, significantly reducing energy waste and long-term operational costs for residential, commercial and industrial facilities.
Key Features
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High Heat Transfer Efficiency & Outstanding Energy Saving: Equipped with high-efficiency plate heat exchangers adaptable to diverse heat medium conditions. Integrated PID temperature control algorithms and outdoor temperature & humidity sensors dynamically optimize system operating status. Combined with dual-pump parallel operation and variable-frequency water replenishing technology, the unit eliminates invalid energy consumption and maximizes overall energy utilization efficiency.
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Compact Modular Structure & Low Maintenance: Highly integrated modular design consolidates heat exchangers, circulating pumps, control systems and pipeline components into one compact skid unit, saving substantial installation space and perfectly fitting space-limited equipment rooms. Standardized detachable component design simplifies daily inspection and deep cleaning. The optimized flow structure reduces scaling deposition by 70% and extends regular cleaning cycles up to six months.
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Intelligent Operation & 24/7 Stable Performance: Equipped with a comprehensive intelligent control system that real-time monitors multiple operating parameters including heat exchanger temperature approach and circulating pump vibration frequency. The system provides rapid early warning for abnormal conditions to avoid potential equipment failures. Featured functions include automatic main/standby pump switching, intelligent variable-frequency water supplementation, and pressure stabilization compensation. It adapts dynamically to variable load demands and ensures stable 24-hour constant-temperature hot water supply.
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Premium Material Matching & Wide Compatibility: Customizable corrosion-resistant materials are available for different application environments. Heat transfer plate options include 304 / 316 stainless steel, titanium alloy and Hastelloy. Sealing gasket materials cover NBR, EPDM and FKM/Viton, ensuring reliable sanitary performance and medium adaptability across civilian, commercial and industrial scenarios.
Technical Specifications
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Maximum System Working Pressure: 25 bar
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Maximum Medium Operating Temperature: ≤ 150℃
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Maximum Rated Flow Rate: 2000 m³/h
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Main Structural Materials: Carbon steel, 304 stainless steel, 316L stainless steel (customizable to match specific media and working conditions)
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Control Precision: Temperature ±1℃, Pressure ±0.02 MPa
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Pump Variable Frequency Range: 5–50 Hz
Application Industries
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Residential Building Sector: Provides stable 24-hour constant-temperature domestic hot water for residential communities, apartment buildings and residential compounds. Compatible with central heating systems to meet large-scale domestic water demand and improve residential comfort.
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Public & Commercial Facilities: Ideal for central hot water supply in hospitals, schools, hotels, shopping malls, gymnasiums and other large public buildings, supporting stable and high-capacity daily hot water consumption.
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Industrial Production Processes: Supplies consistent process hot water for food processing, pharmaceutical manufacturing and chemical industries. Sanitary-grade stainless steel heat exchanger configurations comply with GMP standards for pharmaceutical production, effectively preventing medium contamination and ensuring hygienic process safety.