The vacuum hot water boiler is equipped with industrial burners with good technical performance. It adopts advanced technology such as automatic proportional adjustment of combustion, automatic adjustment of water supply, program start and stop, automatic operation, etc., and has automatic protection functions such as high and low water level alarm and extremely low water level and extinguishing. The boiler has the characteristics of compact structure, safety, simple operation, rapid installation, less pollution, low noise and high efficiency.

Vacuum boiler heat conversion schematic:

Oil (natural gas)→ combustion → heat medium water → steam condensation after boiling heat transfer (vaporization → condensation → vaporization)→ heat exchanger → heat conduction → water

Low nitrogen vacuum hot water boiler has the characteristics of compact structure, safety, easy operation, rapid installation, less pollution, low noise, high efficiency, widely used in enterprises, hotels, hospitals, office buildings, civil buildings and other facilities for domestic hot water and heating.

Product parameter

item		ZKS0.35	ZKS0.5	ZKS0.7	ZKS1.05	ZKS1.4	ZKS1.75	ZKS2.1	ZKS2.8	ZKS3.5	ZKS4.2
		-85/60-q
Rated power	MW	0.35	0.5	0.7	1.05	1.4	1.75	2.1	2.8	3.5	4.2
Rated working pressure	MPa	-0.02
Working pressure of heat exchanger	MPa	≤2.5
Rated effluent temperature	℃	85
Rated return water temperature	℃	60
Thermal efficiency	%	≥96
Water capacity	L	1340	2000	2600	3250	3950	4920	5950	7430	8520	9560
Inlet and outlet	DN	50	65	80	100	100	125	125	150	150	200
blowdown	DN	40	40	40	40	40	40	40	40	50	50
Light oil	Kg/h	32.4	43.2	64.7	97.1	129.5	162	194.2	259	324	389
Natural gas	Nlm³/h	36.8	49	73.5	110.3	147	183.6	220.6	294.1	368	441.2
City gas	Nlm³/h	83.4	111.1	166.7	250	333.3	416.7	500	666.7	833	1000
long	mm	3050	3300	3550	4100	4200	4500	4600	5100	5500	6100
wide	mm	1400	1400	1500	1600	1700	1800	2000	2150	2450	2400
high	mm	1800	1800	1850	2000	2100	2200	2450	2650	2820	2820
weight	Kg	2400	2550	3350	4600	5950	6700	7900	10500	14000	15500

Performance characteristics

(1) The vacuum water heater is always under negative pressure (normal working temperature is lower than 90 ° C, vacuum degree is lower than -30KPa), and there is no danger of expansion, explosion and rupture.

(2) A multi-purpose machine, a boiler can be designed with multiple heat exchangers, can provide heating, domestic hot water, swimming pool heating and so on.

(3) Safe and reliable, can be placed in the basement and the roof, the relevant state departments are not restricted, no approval procedures.

(4) no scaling, corrosion (heat exchanger stainless steel design) and other phenomena, the design service life is more than 20 years.

(5) The integrated design of boiler and heat exchanger saves space and greatly reduces the floor area.

(6) Automatic control system, high degree of automation, no need for special duty.

(7) Imported burner, efficient combustion, very low noise, exhaust gas emissions.

(8) High efficiency and energy saving, low operating cost, thermal efficiency up to 96%.

(9) Mainly used for civilian use, such as hotels, residences, office buildings, bath centers, schools, shopping malls, etc.