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fully premixed cast silicon aluminum heat exchanger for commercial boiler(L type)

Short Description:

  • Product Specification: 500KW, 700KW, 1100KW, 1400KW, 2100KW;
  • The surface area of the combustion chamber is 50% larger than other similar products, the inner surface temperature of the combustion chamber is lower, and the distribution is more uniform；
  • The water channel around the combustion chamber adopts a rotary design, which structurally avoids the phenomenon of dry burning during the exchanger being used;
  • The water volume of the heat exchanger body is 22% larger than other similar products, and the cross-sectional area of the water channel is significantly increased;
  • The chamfering of the water channel is optimized by computer simulation, resulting in lower water resistance and reduced possibility of limescale;
  • The unique design of the diversion groove inside the water channel increases the area of the heat exchanger, enhances the turbulent flow effect, and strengthens the internal heat transfer.

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Product Description:

The special cast silicon-aluminum heat exchanger for commercial condensing low-nitrogen gas-fired boilers produced by Lanyan Hi-Tech is made of silicon-aluminum alloy, which has high heat exchange efficiency, corrosion resistance, durability and high hardness. It is suitable for to be the main heat exchanger of commercial condensing gas boilers with rated heat load below 2200kW.
The product adopts low pressure casting process, and the product forming rate is higher than that of similar products at home and abroad. There is a detachable cleaning port on the side. In addition, the flue gas condensation heat exchange area adopts the company's patented coating material, which can effectively prevent the accumulation of ash and carbon.

Technical Principle:

Blue flame high tech condensing cast silicon aluminum main heat exchanger is of cast silicon aluminum structure, integrating combustion chamber, flue and water channel. Cast aluminum heat exchanger has good corrosion resistance. In a limited volume, rib columns are used to increase the heat exchange area. The combustion chamber and water outlet are located above the main heat exchanger, and the water inlet is located at the bottom. The temperature of the water flow gradually increases from bottom to top, and the temperature of the flue gas gradually decreases from top to bottom. The reverse flow ensures that all points in the heat exchanger can carry out sufficient heat exchange, absorb the sensible heat and most of the latent heat of water vapor in the flue gas, effectively reduce the flue gas temperature, and saturate and precipitate the water vapor in the flue gas, so as to achieve the purpose of high efficiency, energy conservation and environmental protection.
The main technical parameters of the L type inblock casting Silicon Aluminum Magnesium Alloy heat exchanger

Technical Data/Model

unit

GARC-AL 500

GARC-AL 700

GARC-AL 1100

GARC-AL 1400

GARC-AL 2100

Maximum Rated Heat Input

KW

500

700

1100

1400

2100

Maximum outlet water temperature

℃

80

80

80

80

80

Min/Max water system  pressure

Bar

0.2/3

0.2/3

0.2/3

0.2/3

0.2/3

hot water supply capacity

m3/h

21.5

30.1

47.3

60.2

90.3

maximum water flow

m3/h

43.0

60.2

94.6

120.4

180.6

flue-gas temperature

℃

<70

<70

<70

<70

<70

flue-gas temperature

℃

<45

<45

<45

<45

<45

Maximum Condensate Displacement

L/h

42

60

94

120

180

Condensate water PH value

-

4.8

4.8

4.8

4.8

4.8

Diameter of flue interface

mm

250

250

250

300

400

Water supply and return interface size

-

DN100

DN100

DN100

DN100

DN100

Heat exchanger Overall size

L

mm

528

632

941

1147

1559

W

mm

621

621

621

621

621

H

mm

1075

1075

1075

1075

1075
 

The Development and Production of the Si-Al Heat Exchanger

Inblock Cast Silicon Magnesium Aluminum Alloy Heat Exchanger

The special cast silicon aluminum heat exchanger for commercial condensing low nitrogen gas boiler is cast from silicon aluminum magnesium alloy, with high heat exchange efficiency, corrosion resistance, durability and high hardness. It is applicable to the main heat exchanger of commercial condensing gas boiler with rated heat load below 2100 kW.

The product adopts low-pressure casting process, and the molding rate of the product is higher than that of similar products at home and abroad. A removable cleaning opening is set on the side. In addition, the flue gas condensation heat exchange area adopts the company's patented coating material, which can effectively prevent ash and carbon deposition.

图片1

28Kw~46Kw Heat Exchanger

图片2

60Kw~120Kw Heat Exchanger

图片3

150Kw~350Kw Heat Exchanger

图片4

500Kw~700Kw Heat Exchanger

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1100Kw~1400Kw Heat Exchanger

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2100Kw Heat Exchanger

 

Development Histroy of our factory

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Products categories
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    Short Description:

    • Product Specification: 500KW, 700KW, 1100KW, 1400KW, 2100KW;
    • The surface area of the combustion chamber is 50% larger than other similar products, the inner surface temperature of the combustion chamber is lower, and the distribution is more uniform；
    • The water channel around the combustion chamber adopts a rotary design, which structurally avoids the phenomenon of dry burning during the exchanger being used;
    • The water volume of the heat exchanger body is 22% larger than other similar products, and the cross-sectional area of the water channel is significantly increased;
    • The chamfering of the water channel is optimized by computer simulation, resulting in lower water resistance and reduced possibility of limescale;
    • The unique design of the diversion groove inside the water channel increases the area of the heat exchanger, enhances the turbulent flow effect, and strengthens the internal heat transfer.
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