SZS Low Nitrogen Condensing Water Tube Gas Steam Boiler
1. Water circulation utilizes a combination of forced and natural circulation；Boiler’s internal devices are rationally arranged to ensure the medium flowing in the tubes of a single loop will not cause steam and water to boil, with water velocity reasonable, safe and reliable.
2. Flue gas is controlled at around 10m/s, Adjacent tubes in convection tube bundles are connected with stainless steel flat bars to increase tube rigidity and prevent vibration during flue gas scouring. Guide plates are installed at flue bends to eliminate vibration during boiler operation.
3. Economizer (condenser) adopts patented technology with independent intellectual property rights, taking into account both heat transfer efficiency and operation resistance;
4. Boiler is surrounded by membrane type water-cooled walls on all sides, providing excellent sealing and preventing flue gas leakage, reducing heat loss and improving boiler efficiency.
5. With multiple layers of lightweight insulation cotton overlapped staggeredly, entire coating with heat-resistant paint, it makes heat dissipation loss≤0.15%. Membrane walls around the boiler form a large D-shaped furnace, and furnace volume heat load is ≤500kw, which is more conducive to low-nitrogen emissions with nitrogen oxides less than 30mg/Nm³.
Description
Product Name: Low Nitrogen Condensing Water Tube Gas Steam Boiler
Product Model: SZS Series
HS Code: 84021900
Manufacturing Standards: ASME/EU/GB
Packing: Boiler proper in nude packing, auxiliaries in steel frames for bulk vessel.
Application Range: D≤40t/h; P≤2.5MPa; T≤450℃
Parameters 2t/h – 10t/h
| Model / Parameters | SZS2 | SZS3 | SZS4 | SZS6 | SZS10 | ||
|---|---|---|---|---|---|---|---|
| Rated evaporation (T/H) | 2 | 3 | 4 | 6 | 10 | ||
| Rated working pressure (MPa) | 2.5 | 2.5 | 2.5 | 2.5 | 1.25/1.6/2.5 | ||
| Saturated steam temperature (℃) | 226 | 226 | 226 | 226 | 194/204/226 | ||
| Superheated steam temperature (℃) | / | / | / | / | / | ||
| Feed water temperature (℃) | 20 | 20 | 20 | 104 | 104 | ||
| Full water capacity (m³) | 3.9 | 4.6 | 6.9 | 7.6 | 10.2 | ||
| Design thermal efficiency (%) | ≥99 | ≥99 | ≥99 | ≥99 | ≥99 | ||
| Exhaust gas temperature (℃) | ≤65 | ≤65 | ≤65 | ≤65 | ≤65 | ||
| Design fuel | Natural gas, city gas, gas, coke oven gas, 0# light diesel, etc. | ||||||
| Transport weight of the largest component (t) | 9.5 | 11 | 13 | 19 | 30 | ||
| Dimensions of boiler proper (L×W×H) (mm) | 4200×2600×3300 | 4800×2900×3300 | 5300×2900×3000 | 6200×2900×3700 | 6900×3300×3700 | ||
| Dimensions after installation (L×W×H) (mm) | 4750×4000×3300 | 5400×4300×3300 | 5900×4990×4025 | 6800×4990×4500 | 9075×5295×4500 | ||
| Interface diameter (mm) |
|||||||
| Main steam valve | DN65 | DN80 | DN80 | DN125 | DN150 | ||
| Safety valve | 2×DN40 | 2×DN40 | 2×DN40 | 2×DN65 | 2×DN80 | ||
| Water inlet valve | DN40 | DN40 | DN40 | DN40 | DN50 | ||
| Blowdown valve | DN40 | DN40 | DN40 | DN50 | DN50 | ||
Note:
1. The right to interpret this product belongs to Brit Thermal Energy Equipment Co., LTD., the design data may subject to changes without prior notice, the final design drawing shall prevail.
2. We can design and manufacture boilers with other parameters according to customers’ requirements.
Parameters 15t/h – 40t/h
| Model Parameters |
SZS15 | SZS20 | SZS25 | SZS30 | SZS35 | SZS40 | |
|---|---|---|---|---|---|---|---|
| Rated evaporation (T/H) | 15 | 20 | 25 | 30 | 35 | 40 | |
| Rated working pressure (MPa) | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 | |
| Saturated steam temperature (℃) | 194/204/226 | 194/204/226 | 194/204/226 | 194/204/226 | 194/204/226 | 194/204/226 | |
| Superheated steam temperature (℃) | ≤450 | ||||||
| Feed water temperature (℃) | 104 | 104 | 104 | 104 | 104 | 104 | |
| Full water capacity (m³) | 13 | 14.2 | 16.4 | 20 | 25 | 27 | |
| Design thermal efficiency (%) | ≥99 | ≥99 | ≥99 | ≥99 | ≥99 | ≥99 | |
| Exhaust gas temperature (℃) | ≤65 | ≤65 | ≤65 | ≤65 | ≤65 | ≤65 | |
| Design fuel | Natural gas, city gas, gas, coke oven gas, 0# light diesel, etc. | ||||||
| Transport weight of the largest component (t) | 34 | 46 | 50 | 60 | 65 | 85 | |
| Dimensions of boiler proper (L×W×H) (mm) | 7900×3660×3850 | 8900×4000×3900 | 10050×4200×4100 | 11700×4200×4200 | 12000×4200×4200 | 13500×4500×4200 | |
| Dimensions after installation (L×W×H) (mm) | 9320×6400×4725 | 11000×6200×4760 | 1360×6855×4590 | 3570×6365×5015 | 5480×6845×6070 | 15500×8400×6200 | |
| Interface diameter (mm) |
|||||||
| Main steam valve | DN200 | DN200 | DN200 | DN250 | DN250 | DN250 | |
| Safety valve | DN80, DN100 | 2×DN100 | DN100+DN150 | 2×DN150 | 2×DN150 | 2×DN150 | |
| Water inlet valve | DN65 | DN80 | DN80 | DN80 | DN80 | DN100 | |
| Blowdown valve | DN50 | DN50 | DN50 | DN50 | DN50 | DN50 | |
Note:
1. The right to interpret this product belongs to Brit Thermal Energy Equipment Co., LTD., the design data may subject to changes without prior notice, the final design drawing shall prevail.
2. We can design and manufacture boilers with other parameters according to customers’ requirements.
