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HENAN HENGAN BOILER GROUP CO., LTD.
— Product —

Oil (gas) vacuum hot water boiler

  • 0.7——3.5吨 Specifications: 0.7——3.5 tons
  • 95% Thermal efficiency: 95%
  • 燃油、燃气 Applicable fuel: fuel oil, gas
  • 供暖,集中供热、用热水 Application: heating, central heating, hot water

燃油(气)系列真空热水锅炉的全称叫做真空相变锅炉,注意两个名词,一个是真空,一个是相变。 Product introduction: The full name of the fuel (gas) series vacuum hot water boiler is called a vacuum phase change boiler. Pay attention to two terms, one is vacuum and the other is phase change. The vacuum boiler forms a vacuum environment with a negative pressure inside the closed furnace body. The body is filled with heat medium water, and the heat medium water is heated by combustion or other methods, and then the heat medium water is evaporated and condensed.

24-hour service hotline: 15896709659 (Manager Dong)

Product introduction Working principle Performance advantage Technical parameters

product description

The full name of the oil (gas) series vacuum hot water boiler is called a vacuum phase change boiler. Note two terms, one is vacuum and the other is phase change. The vacuum boiler forms a negative pressure vacuum environment inside the closed furnace body. The body is filled with heat medium water, and the heat medium water is heated by combustion or other methods. The heat medium water is evaporated and condensed to the heat exchanger, and then The water to be heated is heated by a heat exchanger.

Vacuum hot water boilers supply hot water of different temperatures and different uses, such as central air-conditioning water, sanitary hot water, and process hot water. The structure of the lower half of the vacuum boiler is the same as that of a normal boiler. It consists of a combustion chamber and a heat transfer tube. The lower half is equipped with a heat medium (furnace water), and the upper part is a vacuum steam chamber. Type) heat exchanger. Because the boiler is operated under negative pressure as a whole, it is safe and reliable. The heat medium (furnace water) in the furnace of the vacuum hot water boiler does not enter, exit, increase, or decrease during the entire operation of the boiler, and is only enclosed in the vacuum chamber of the boiler. Heat is transferred between the exchangers. The heat medium in the furnace is completely deoxidized pure water, non-corrosive and scale-free, which makes the boiler life up to 20 years or more. In summary, the natural development trend of boilers with such performance is to replace the traditional drum and shell boilers.

working principle

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Performance advantage

1. Boiler body: The combustion heating part of the vacuum phase change boiler uses high-quality Q245 plate and 20 # steel pipe. The advantage is a large combustion chamber and a small heat load on the boiler hearth. Large heating area, small volume, compact structure, small water capacity and fast heating rate. Coupled with a negative pressure evaporation chamber connected to the upper part, the performance is stable and the operation is reliable. Due to the large space of the negative pressure evaporation chamber, the inserted heat exchanger can be manufactured according to user needs. Generally, horizontal boilers use straight tube heat exchangers, which can be removed at both ends of the head and the connection, which is convenient for users to maintain and clean the water pipes of the heat exchanger.

2. Manufacture and construction of heat exchanger: The heat exchanger is made of stainless steel, inserted into the negative pressure evaporation chamber in a tube bundle manner, and the two ends are connected by flanges. Its advantages: easy disassembly, simple replacement, not easy to corrode, easy to maintain and clean, and durable.

3. Automatic control: The control part selects high-quality controller and touch screen control system to automatically detect the temperature of the boiler water and the temperature of the water; automatically detect the internal faults of the burner and the furnace body; the burning time can be controlled through the program setting; it can correctly according to the load Changes in the combustion process can automatically adjust the entire combustion process to reduce the number of starts and stops caused by load changes, so that the boiler can operate normally and reduce the loss of purge heat during start-stop.

4. Combustion equipment: Due to the special design of the vacuum phase change boiler, it can be equipped with various imported and domestic fuel oil and gas burners through special mounting plates according to the type of fuel and user needs.

5. High efficiency and energy saving: Adopting high-efficiency vacuum hot water boiler technology, the boiler operates under vacuum, low boiling point, and latent heat of vaporization (condensation latent heat), which effectively improves the thermal efficiency and good heat transfer performance. The three-pass wet back design of the boiler effectively improves the radiation and convection heat transfer area, and the boiler's thermal efficiency is as high as 95%.

6. Negative pressure operation of the unit is safe and reliable: the unit operates under vacuum, the heat medium is in a vacuum state, and there is no danger of expansion or explosion. A constant amount of heat medium water is stored in the furnace, and there is no danger of dry burning. Multiple automatic protection devices have safety comparable to other types of boilers.

7. Non-corrosion, non-scaling, long service life: the heat exchanger is made of stainless steel, and the once-injected heat medium water runs in a closed state, non-corrosive and non-scaling, and its service life is nearly two times longer than that of ordinary boilers. Times, product life is as long as 30 years.

8, rich models, multi-purpose machine: vertical, horizontal, fuel, gas, methanol, water pipe, smoke pipe models are available for users to choose freely, the heat exchanger is separated from the header, heating water, hot water The load can be switched at any time according to the needs, to meet the different requirements of users for heating water and clean hot water in use, and to ensure that the hot water is clean and stable.

9, small size, easy installation: modular design, high-performance heat exchange components, small unit size, making the product easy to transport and install. In a small space, multiple units can be used in parallel.

10. Unique environmental protection function: It adopts high-performance burner, flame-back structure design, full fuel combustion, and various environmental protection indicators meet the national tourist area emission standards.

11. Eliminates complicated approval procedures: The unit operates in a vacuum state, simplifying procedures such as inspection and annual review of the pressure window, and operators do not need to operate with a certificate.

Technical Parameters

Item / Model ZKW0.7-8560-Y (Q) ZKW1.05-8560-Y (Q) ZKW1.4-8560-Y (Q) ZKW1.75-8560-Y (Q) ZKW2.1-8560-Y (Q) ZKW2.8-8560-Y (Q) ZKW3.5-8560-Y (Q)
Heat medium water capacity (L) 410 520 568 700 830 980 1250
Rated heating value (Mw / h) 0.7 1.05 1.4 1.75 2.1 2.8 3.5
Rated heating value 60 90 120 150 180 240 300
Fuel consumption Light diesel (Kg / h) 64 96 128 160 192 256 320
Heavy oil (Kg / h) 67.3 100 134 168 202 269 363
Natural gas (m3 / h) 165 116 155 193 232 310 387
City gas (m3 / h) 77 247 330 412 494 659 824
Liquefied gas (m3 / h) 29 44 58 73 88 117 146
Heat Exchanger Material / structure Stainless steel
Working pressure (MPa) 1.0
Heating only Maximum calorific value 36 54 72 90 108 144 180
Warm water circulation 36 54 72 90 108 144 180
Pressure loss 2.2 3.0 2.0 2.6 2.5 3.5 3.3
Heating outlet (DN) 65 80 80 100 125 125 133
Heating area (㎡) 6000 9000 12000 15000 18000 24000 30000
Dedicated for hot water Maximum calorific value twenty four 36 48 60 72 96 120
Water supply (m3 / h) 6 9 12 15 18 twenty four 30
Hot water temperature 50
Pressure loss 2.0 0.6 1.5 1.8 1.5 1.8 2.0
Outlet diameter (DN) 40 65 65 80 100 100 125
Voltage Voltage (V) 220/380
Total power consumption 2.2 (2.6) 3.7 (4.1) 5.0 (6.5) 7.5 (9) 11 (2.5) 15 (16.5) 18.5 (20)
Blower power consumption 2.2 3.7 5.0 7.5 11 15 18.5
Power consumption of oil pump 0.4 0.4 1.5 1.5 1.5 1.5 1.5
size Chimney diameter (mm) 350 350 400 450 500 550 600
Length (m) 2700 3200 3400 4050 4700 4900 5500
Width (m) 1365 1365 1600 1600 1600 1800 2020
Height (m) 2345 2400 2500 2580 2580 2630 2700