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Fuel gas boiler

ZZJ / ZLJ type vacuum hot water boiler

ZZJ / ZLJ gas-fired vacuum boiler is a kind of high-energy, high-efficiency and environmental-friendly boiler developed by the China-Pacific R & D team using the characteristics of water at different pressures and different boiling temperatures.

Zhongtai Vacuum Boiler forms a closed vacuum cavity inside the vacuum hot water unit through vacuum extraction, and injects a certain amount of heat medium water. Fuel combustion causes the temperature of the heat medium water to rise, boil, and evaporate on the water surface to generate heat. Saturated water vapor at the same temperature as the medium water. Water vapor will fill the entire vacuum chamber and increase the pressure in the chamber. When the refrigerant water enters the tube bundle of the boiler heat exchanger, the refrigerant water in the tube is heated by the water vapor outside the tube into hot water and passed to the hot user. The water vapor outside the tube is cooled and condensed and the water droplets fall back to the water surface, and the pressure in the cavity is reduced. The heating medium water is heated again, and the pressure in the cavity rises again. This kind of dynamic and balanced heat exchange process formed by this cycle is the working principle of a gas vacuum boiler.

Heat medium water: It is high-purity water that has undergone special treatments such as softening, deaeration, and salt removal. It is stored inside the unit under a closed vacuum state to realize the vaporization condensation heat exchange cycle. Generally, it does not need to be added or replaced.
Zhongtai Gas Vacuum Boiler has huge energy efficiency advantages in heating, bathing and domestic water, and has been well received by customers.

  • capacity

    0.35-14MW

  • fuel

    Natural gas, coke oven gas, city gas, light oil, heavy oil, palm oil, etc.

  • Thermal efficiency

    93.3% -100.9%

  • Application range

    Bath water, disinfection of medical supplies, and production of steam, domestic heating, etc.

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热效率更高
Higher thermal efficiency

The vacuum hot water unit uses water to boil under vacuum to generate low-temperature steam, and then heats the circulating water of the system through steam condensation heat exchange, and finally obtains hot water that meets the requirements.

多重控制保护
Multiple control protection

Multiple control protections for pressure and water level, as well as over-smoke temperature protection, ensure the safety of boiler operation.

节省客户成本
Save customer costs

Reduced vacuum hot water boiler auxiliary equipment, saving operation and maintenance costs, built-in heat exchanger, direct heating system circulating water low load operation to save fuel costs.

后期维护更佳
Better maintenance

The heat exchange process completed by the heating of the heat medium water in the vacuum environment and the completion of high-temperature water vapor is free from scaling and corrosion, which facilitates subsequent maintenance.

Model specifications Rated power (KW) Adjustment method Burning method Design thermal efficiency% Design fuel Maximum transport weight (KG) Maximum transport size (MM)
ZZJ30 350 Fully automatic two-stage fire regulation Micro positive pressure chamber combustion 95.5 Natural gas, light oil, heavy oil, etc. 2900 3600X1150X1900
ZZJ60 700 4000 4100X1400X2200
ZZJ90 1050 5300 4500X1500X2300
ZZJ120 1400 6400 4800X1600X2400
ZZJ180 2100 7600 5600X1700X2500
ZZJ240 2800 11000 6100X1850X2700
Model specifications Rated power (KW) Adjustment method Burning method Design thermal efficiency% Design fuel Maximum transport weight (KG) Maximum transport size (MM)
ZLJ300 3500 Fully automatic two-stage fire regulation Micro positive pressure chamber combustion 95.5 Natural gas, light oil, heavy oil, etc. 14000 6900X1900X2850
ZLJ360 4200 24000 7300X2000X2950
ZLJ480 5600 30000 8000X2150X3050
ZLJ600 7000 35000 8450X2300X3250
ZLJ720 8400 44000 8750X2400X3350
ZLJ900 10500 51000 9150X2400X3350
ZLJ1200 14000 62000 9950X2800X3800
雄安新区小学5吨真空热水锅炉

5 ton vacuum hot water boiler in Xiong'an New District Primary School

  • Time: 2016-08-10
  • Purchase equipment: ZLJ300
  • Application areas: daily hot water for schools

To meet the needs of daily hot water, a primary school in Xiong'an New District purchased a ZLJ300 vacuum hot water boiler from Zhongtai Boiler.

开封医院2吨真空热水锅炉

Kaifeng Hospital 2 Ton Vacuum Hot Water Boiler

  • Time: 2017-02-27
  • Purchase equipment: ZZJ120
  • Application: Hospital heating

In February 2017, a hospital in Kaifeng, in order to meet the daily heating needs, reached a cooperation with Zhongtai Boiler and purchased a ZZJ120 vacuum hot water boiler.

西安医院8吨热水锅炉

8-ton hot water boiler in Xi'an Hospital

  • Time: 2017-03-08
  • Purchase equipment: ZLJ480
  • Application: Medical supplies disinfection

A hospital in Xi'an, Shaanxi is a comprehensive hospital integrating medical treatment, prevention, rehabilitation and health care. Affected by the local coal-to-gas policy, the hospital decided to purchase a new oil-fired and environmentally friendly boiler. After inspecting different manufacturers, the project leader decided to reach a cooperation with Zhongtai Boiler and purchase a ZLJ480 fuel gas vacuum hot water boiler.

新疆能源销售20吨热水锅炉

Xinjiang Energy Sales 20-ton Hot Water Boiler

  • Time: 2014-02-05
  • Purchase equipment: ZLJ1200
  • Application: Energy sales industry

In February 2014, an energy company in Xinjiang signed a contract with Zhongtai Boiler to purchase a ZLJ1200 vacuum hot water boiler for steam supply.

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