Direct-Connected Mixing Water Heating Unit
The Generalway direct-connected mixing water heating unit is an integrated skid-mounted heating system featuring high-efficiency hydraulic mixing modules, variable-frequency pump sets, intelligent sensing elements and full-automatic PLC control systems. Specially designed for direct connection between primary heat supply networks and secondary terminal heating networks, the unit adopts precisely optimized thermal and hydraulic logic to balance pressure differences between high-grade primary pipelines and low-grade terminal pipelines.
The unit realizes accurate constant-temperature water mixing and intelligent load regulation without conventional plate heat exchangers. With compact footprint, fast on-site installation and low lifecycle maintenance costs, this cost-effective direct heating solution delivers stable and energy-efficient central heating for residential communities, commercial buildings, shopping centers and industrial plants.
Key Features
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Exchanger-Free Direct Heating & Lower Investment: Adopts a direct network connection structure that eliminates the need for traditional heat exchangers. It simplifies system configuration, reduces initial equipment and civil engineering investment, and greatly improves heating economic benefits.
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Precision Intelligent Mixing & Stable Heating Comfort: Equipped with intelligent temperature mixing and load tracking logic. The unit automatically matches real-time terminal heating demand, dynamically adjusts mixing ratio and supply water temperature, and maintains stable and comfortable indoor heating temperature throughout fluctuating ambient conditions.
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Variable-Frequency Energy Saving & Low-Noise Operation: Supports 5–50Hz stepless frequency conversion to regulate circulating flow on demand. It avoids constant-speed high-load ineffective operation, significantly cuts pumping power consumption, and ensures low-noise, smooth system operation.
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Full-Automatic Control & Unattended Operation: Integrated intelligent linkage control system supports 24-hour unattended operation and remote real-time monitoring, parameter adjustment and fault diagnosis. Manual and automatic modes can be switched seamlessly to adapt to different operation and maintenance management modes.
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Prefabricated Skid Design & Easy Commissioning: Fully factory pre-assembled and tested modular skid structure features highly integrated layout and small floor space. On-site construction only requires simple pipeline and electrical connection, realizing rapid commissioning and convenient daily maintenance.
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Multiple Safety Protection & High Operational Reliability: Built-in overpressure, overtemperature, overload and anti-fluctuation protection functions. The system resists sudden changes of heating network pressure and temperature, ensuring long-term safe, stable and trouble-free operation.
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
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Mixing Ratio: Intellectually adjustable according to working conditions
Application Industries
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Urban District Heating Projects: Direct connection heating transformation and new construction of municipal central heating pipe network systems.
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Residential Community Heating: Stable central heating for residential districts, apartment buildings and residential complexes.
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Industrial Plant & Dormitory Heating: Energy-saving heating solutions for factory workshops, staff dormitories and industrial supporting buildings.
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Commercial HVAC Heating: Central heating and indoor temperature control for shopping malls, hotels, office buildings and commercial complexes.
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Public Building Heating Systems: Constant-temperature heating and energy-saving renovation for schools, hospitals and other large public facilities.