Brief Introduction of the Cast Silicon Aluminum Heat Exchanger:
The special cast silicon aluminum heat Exchanger for commercial condensing low nitrogen gas boiler is cast from silicon aluminum 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.
Technical principle:
The 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.
Unique advantages over other similar products:
1) The furnace volume of the combustion chamber is 50% larger than that of other similar products. The inner surface temperature of the furnace is lower and the distribution is more uniform, which greatly prolongs the service life of the burner;
2) The water channel around the furnace adopts rotary design, so that the highest outlet water temperature is at the lower right of the furnace, which structurally avoids the dry burning phenomenon in the application of similar products;
3) The water volume of the heat exchanger body is 22% larger than that of other similar products, and the cross-sectional area of the water channel is significantly increased. The chamfer of the water channel is simulated and optimized to reduce the water resistance and reduce the possibility of scaling;
4) The unique design of diversion channel inside the water channel increases the heat exchange area, enhances the turbulence effect, strengthens the internal heat transfer, and makes the weight of the heat exchanger lighter.
Details of the M type Cast Aluminum Silicon Heat Exchanger:
| Specification: |
700KW; 830KW; 960KW; 1100KW; 1260KW; 1400KW; 2100KW |
| Space advantage: |
The structure design is neat and compact, the appearance is generous, and it is easy to install (L× W × H: 2.40m × 1.40m × 2.30m); |
| Material advantages: |
Casting of silicon aluminum alloy, high heat exchange efficiency, strong corrosion resistance and durability; |
| Functional advantages: |
super acid corrosion resistance, super thermal conductivity; flue gas and water flow in the opposite direction to enhance heat exchange. |
| Product features: |
The furnace 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 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 |
| Safe and reliable: |
aluminum material, high heat transfer coefficient, heat conduction fin design, stronger heat absorption |
| Low nitrogen and environmental protection: |
NOx emission is as low as 30mg/m³ or less (standard operating conditions) |
| Service life: |
One-time one-piece molding by casting process, very longer life |
| Waterway features: |
The water channel around the combustion chamber adopts a rotary design, which structurally avoids the dry burning phenomenon that is easy to occur in the application process; the chamfer design of the water channel has been simulated and optimized to make the water resistance smaller and reduce the possibility of scaling; the interior of the water channel is unique The design of the diversion groove increases the area of the heat exchanger, enhances the turbulent flow effect, and strengthens the internal heat transfer; |
| Structural features: |
compact structure, small size, light weight, easy to install |
The main technical parameters of the L type one-piece casting Silicon Aluminum Magnesium Alloy heat exchanger
| Technical Data/Model |
unit |
GARC-AL500 |
GARC-AL700 |
GARC-AL1100 |
GARC-AL1400 |
GARC-AL2100 |
| Maximum Rated Heat Input |
KW |
500 |
700 |
1100 |
1400 |
2100 |
| Maximum outlet water temperature |
ºC |
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(T=20ºC) |
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(80ºC~60ºC) |
ºC |
<70 |
<70 |
<70 |
<70 |
<70 |
| flue-gas temperature(50ºC~30ºC) |
ºC |
<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 |
Main Development and Products:
Application Area:
Company Profile:
As early as 2009,BLUEFLAME Hi-Tech Gas Technology Co., Ltd. began to research and design cast silicon aluminum main heat exchanger for gas boiler, which is one of the earliest enterprises to research and develop cast silicon aluminum main heat exchanger in China. As HAVC industry with a new brand, blue flame tech center has 12 years of experience in research and development of the main heat exchanger, a number of independent intellectual property rights of patented technology. Blue Flame Hi-Tech will become an international well-known casting silicon aluminum main heat exchanger leader, which rely on with Tsinghua university, Tianjin university and Tianjin chengjian university and so on domestic well-known experts industry-university-institute cooperation of university.
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