Operating principle

Establish a vacuum environment: Before starting the boiler, the air extraction device establishes a stable negative pressure vacuum environment (such as -0.03MPa) in the sealed furnace body.
Heating and evaporation: Under vacuum conditions, the heat transfer medium water can boil at a low temperature of 60-90℃ and quickly vaporize into pure steam.
Condensation heat exchange: The generated heat transfer medium vapor rises and comes into contact with the heat exchange tube bundle immersed in the vacuum chamber. The vapor rapidly condenses upon contact with the cool tube wall, releasing a large amount of latent heat of vaporization, which is efficiently transferred to the system water inside the tubes, heating it to the required temperature.

Regeneration cycle: The condensed heat transfer fluid droplets fall back to the bottom, are reheated and vaporized, and so on.

The core role of "vacuum"

Achieving low-temperature boiling, inherently safe.

In a vacuum environment, the heat transfer medium boils at a temperature far below 100°C, the internal operating temperature of the boiler remains below 90°C, and the pressure is always below atmospheric pressure. This eliminates the possibility of boiler explosion from a physical perspective, achieving "absolute safety."

Prevents scaling and corrosion, extending service life.

The oxygen-free vacuum environment inside the furnace body inhibits oxidation and corrosion.

Parameter

Model	Rated evaporation rate(MW)	Rated Working Pressure (MPa)	Inlet/outlet water temperature (℃)	Thermal Efficiency (%)	Natural gas consumption(m³)	Shipping Weight(t)
ZKQ-0.35	0.35	1.0/1.25/1.6	70/50,50/40,80/60	>103	36.3	3.3
ZKQ-0.7	0.7	1.0/1.25/1.6	70/50,50/40,80/60	>103	72.6	5.1
ZKQ-1.4	1.4	1.0/1.25/1.6	70/50,50/40,80/60	>103	145.2	5.6
ZKQ-2.1	2.1	1.0/1.25/1.6	70/50,50/40,80/60	>103	217.8	6.8
ZKQ-2.8	2.8	1.0/1.25/1.6	70/50,50/40,80/60	>103	290.4	8.7
ZKQ-3.5	3.5	1.0/1.25/1.6	70/50,50/40,80/60	>103	363	10.2
ZKQ-4.2	4.2	1.0/1.25/1.6	70/50,50/40,80/60	>103	435.6	10.8
ZKQ-4.9	4.9	1.0/1.25/1.6	70/50,50/40,80/60	>103	508.2	17.7
ZKQ-5.6	5.6	1.0/1.25/1.6	70/50,50/40,80/60	>103	580.7	18.6
ZKQ-7.0	7.0	1.0/1.25/1.6	70/50,50/40,80/60	>103	726	23.8
ZKQ-10.5	10.5	1.0/1.25/1.6	70/50,50/40,80/60	>103	1089	32.2
ZKQ-14	14	1.0/1.25/1.6	70/50,50/40,80/60	>103	1452	41.5

(*For reference only)

Main features

Absolutely Safe: Vacuum operation eliminates the risk of explosion, making it the safest type of boiler.
Highly Efficient and Energy-Saving: Phase change heat exchange + condensation technology ensures high thermal efficiency and fast response.
Long-Lasting and Durable: No scaling, low corrosion, and a design life far exceeding that of atmospheric and pressurized boilers.
Intelligent and Convenient: Fully automatic control; multiple units can be interconnected. Modular design allows for extremely flexible deployment.
Multi-Functional: One boiler can simultaneously and independently provide heating, domestic hot water, pool heating, and other functions through multiple heat exchangers without interference.