The Tuff Electrode Phase Change Vacuum/Low Pressure Hot Water Boiler is an innovative electrode boiler developed by Tuff, designed to achieve phase change heat transfer within the boiler itself. The heat transfer medium inside the boiler is pure water mixed with electrolytes, operating in a closed-loop system. The boiler body is made from 304 stainless steel, and the heat exchange tubes are made from stainless steel and other anti-corrosion materials. During operation, there is virtually no heat accumulation or transfer loss, allowing nearly 100% of electrical energy to be converted into thermal energy. The system does not require an external expansion tank, and the electrical conductivity remains stable over time. There is no need for blowdown or replenishment of the heat transfer medium, resulting in a long service life, high heating efficiency, and no pollution. Compared to traditional electrode boilers, the Tuff phase change electrode boiler does not require a circulation pump, significantly simplifying the system and improving operational reliability.

Features:

• Advanced Structure: The integrated design results in a compact unit that occupies minimal space. It features a phase change heat exchange module integrated into the top of the boiler, allowing for simple and quick installation. The electrodes are easy to maintain, and the operation is user-friendly.

• Safety Assurance: High-voltage central isolation technology is employed, with the electrically heated parts fully isolated and insulated. The boiler is equipped with multiple safety protection devices, ensuring that the outer casing and external piping are safe to touch, making the boiler reliable and safe to use.

• No Inspection Required: With a rated working pressure of less than 0.1 MPa, this boiler does not fall under the category of special equipment. Therefore, it does not require regulatory inspection, government supervision, usage registration, or periodic inspections.

• Long Service Life: The boiler uses a closed-loop circulation system with a body made from 304 stainless steel, eliminating the risk of scaling and oxygen corrosion. The loss of pure water is minimal, contributing to an extended service life.

• Wide Applicability: The boiler starts up quickly, reaching full load within 2 to 10 minutes depending on standby status. The load can be quickly and precisely adjusted within a 10% to 100% range, making it suitable for balancing grid load demands.

• Environmental Protection: The boiler water is heated directly by clean electrical energy, with no noise, zero pollution, and no emissions of waste residues, gases, or excess heat, making it a genuinely green energy heating device.

Working Principle:

High-voltage electricity is introduced directly into the boiler from the outside through an insulating device, using water as a conductor to generate high-temperature hot water or steam by direct electrical resistance heating. The electrodes are in direct contact with the water, and the boiler's operating power is adjusted by controlling the conductivity and varying the height of the insulation shield. Thermal energy is transferred to the heating system via the phase change heat exchanger at the top of the boiler. The entire operation process involves a closed-loop heating cycle through two partition devices inside the boiler and the phase change heat exchanger at the top, completing the heating → evaporation → condensation → heat release and reheating cycle.