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vacuum hot water boiler
真空热水锅炉

Vacuum Hot Water Boiler

Vacuum phase change boiler, referred to as vacuum boiler, is to form a vacuum environment with negative pressure inside the closed furnace body, fill the body with heat medium water, heat the heat medium water by combustion or other methods, and then evaporate and condense the heat medium water The heat is transferred to the heat exchanger, thereby heating the water in the heat exchanger.
vacuum hot water boiler
真空热水锅炉
Product description
Parameters
  • Introduction for Vacuum Boiler 

Vacuum phase change boiler, referred to as vacuum boiler, is to form a vacuum environment with negative pressure inside the closed furnace body, fill the body with heat medium water, heat the heat medium water by combustion or other methods, and then evaporate and condense the heat medium water The heat is transferred to the heat exchanger, thereby heating the water in the heat exchanger.

The heat medium water in the vacuum boiler is high-purity water that has undergone special treatments such as deoxygenation and descaling. It is filled at one time before leaving the factory. When used, it is cycled inside the unit (vaporization→condensation→vaporization). It does not increase or decrease. No need to replenish or replace during the life.

Application: Mainly used for civilian purposes, such as hotels, residences, office buildings, bathing centers, schools, shopping malls and other places.

  • Boiler Structure

The structure of the lower half of the vacuum hot water boiler is the same as that of a normal boiler, consisting of a combustion chamber, a back-combustion chamber and a heat transfer tube. The combustion and heating part adopts high-quality 20# boiler tubes arranged in a heat tube bundle; the upper part is a vacuum chamber with internal installation The heat exchanger. Since the whole boiler is under negative pressure, it is absolutely safe. The heat medium in the furnace does not enter, exit, increase, or decrease during the entire operation of the boiler. It is only enclosed in the vacuum chamber of the boiler, between the heat transfer tube of the boiler and the heat exchange tube of the heat exchanger. Transfer heat. Because the heat medium in the furnace is completely deoxidized pure water, there is no corrosion and no scale.

Figure 1 Schematic diagram of vacuum boiler structure

1- heat exchange tube;     2- vacuum chamber;  3- pressure relief port;    4- smoke outlet;

5- water inlet and outlet;  6-heat exchanger;     7- explosion-proof door;  8- base;

9- combustion chamber;  10- Burner interface

  • Outline Size for Vacuum Hot Water Boiler  

Item

ZWNS0.35

ZWNS0.7

ZWNS1.4

ZWNS2.1

ZWNS2.8

ZWNS4.2

ZWNS7.0

Lengthmm

2020

2300

2820

3320

3720

4620

5750

Widthmm

1320

1470

1692

1926

2076

2346

2620

Heightmm

1635

1785

1955

2238

2367

2693

3005

 

  • Technical Parameters                                                                                    

Item

Unit

Model

ZWNS0.35

ZWNS0.7

ZWNS1.4

ZWNS2.1

ZWNS2.8

ZWNS4.2

ZWNS7.0

Rated power

MW

0.35

0.7

1.4

2.1

2.8

4.2

7.0

Heat exchanger

/

stainless steel pipe

Fuel

/

Diesel/natural gas

Diesel consumption

Kg/h

33

65

130

195

259

389

610

Natural gas consumption

Nm³/h

40

79

157

226

314

471

740

Unit weight

Kg

2038

2728

3975

6240

8501

11896

19833

 

  • Boiler Characteristics
  •  Safe and reliable operation under negative pressure
  •  high degree of automation
  •  Long service life
  •  Strong applicability
  •  Energy efficient
  •  Compact structure and easy installation
  •  Eliminate complicated approval procedure
  • Boiler Advantages  
  • 1.The vacuum boiler has no hidden dangers of expansion, explosion or rupture, and it is safe and reliable
  • 2.One machine has multiple functions, and one boiler can provide heating water, domestic hot water, swimming pool heating, etc. at the same time
  • 3.It can be placed in the basement and on the roof without restrictions by the relevant state departments
  • 4.High efficiency, low cost, no fouling, corrosion, etc
  • 5.It is small in size and can be set up in modular parallel connection, and only one of them can be turned on to run the boiler reasonably.
  • 6.Built-in stainless steel heat exchanger, high heat exchange efficiency, clean water quality
  • 7.Imported burner, high efficiency combustion, low noise, low exhaust gas emission, meeting the national first-class area requirements
  • 8.The large furnace technology effectively increases the radiation heating area of the unit and reduces the NOX emissions
  • 9.The integrated design of boiler and heat exchanger saves space and greatly reduces the area occupied.
  • 10.Adopt the shell type full wet back three-pass structure, dynamic heating, and sufficient heat exchange.
  • 11.The water inlet and outlet are connected by flanges, which are convenient to disassemble, simple to replace, not easy to corrode, and durable.

 

Welcome to contact us for more details:

E-mail: zhangteng@c-jsec.com 

Whatsapp:+86-13269593030

Keyword:
vacuum boiler
vacuum hot water boiler
hot water boiler
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