DHW Vertical Corner Tube Biomass Steam Boiler
1. Wide fuel adaptability, suitable for various types of biomass fuels. Chain or reciprocating grates can be selected according to fuel characteristics. Fuels with moisture content ≤50% can be stably and fully burned. It has high fuel burnout rate, low ash carbon content and high boiler efficiency.
2. Low-pressure economizer is optional to the boiler system, it can further reduce the exhaust gas temperature and improve boiler thermal efficiency, which can be 3-5% higher than similar products.
3. Furnace chamber has big space, it adopts novel combustion technology combining layer combustion with chamber combustion. Through unique coordination technique between boiler arch & fuel wind, rationally organized furnace air dynamic field and flue gas temperature fields, it can control the furnace temperature effectively, achieve full combustion of volatiles & three-level low-nitrogen combustion technology of fuel, air and flue gas at the same time. Boiler’s initial NOx emission is less than 150mg/m³, initial CO emissions is less than 100mg/m³, eliminating no black smoke.
4. Unique empty load channel design ensures temperatures of flue gas entering the dense convective heating surface <650℃,with coking eliminated, initial emission concentration of smoke & dust ≤600mg/Nm³;
5. The dense heating surface and equal flue gas velocity design reduces local resistance, saves system power consumption, and prevents ash accumulation due to low flue gas velocity at the end.
6. Boiler has annual operating time more than 8,000 hours, with fast fire & pressure rise, sufficient output, and 10% overload operating capacity.
Description
Product Name: Vertical Corner Tube Biomass Steam Boiler
Product Model: DHW Series
HS Code: 84021900
Manufacturing Standards: ASME/EU/GB
Packing: Boiler proper in nude packing, auxiliaries in steel frames for bulk vessel.
Application Range: 10t/h≤D≤130t/h; P≤9.8MPa; T≤540 ℃
Parameters for 10t/h ~ 30t/h
| Model Parameters | DHW10 | DHW15 | DHW20 | DHW25 | DHW30 | |
|---|---|---|---|---|---|---|
| Structure | Single-drum horizontal water tube boiler | |||||
| Rated evaporation (T/H) | 10 | 15 | 20 | 25 | 30 | |
| Working pressure (MPa) | 1.25;1.6 | 1.25;1.6 | 1.25;1.6 | 1.25;1.6 | 1.25;1.6 | |
| Steam temperature (saturated °C) | 194;204 | 194;204 | 194;204 | 194;204 | 194;204 | |
| Slightly superheated steam temperature (℃) | 230-250 | 230-250 | 230-250 | 230-250 | 230-250 | |
| Feed water temperature (℃) | 104 | 104 | 104 | 104 | 104 | |
| Boiler efficiency (%) | ≥90 | ≥90 | ≥90 | ≥90 | ≥90 | |
| Design fuel | Bulk biomass materials such as forest wastes, sliced materials; bundled materials such as bean stalks, corn stalks and rice straw | |||||
| Heating area (M²) | 549.23 | 729.72 | 1035.62 | 1230.53 | 1470.24 | |
| Full water capacity (M³) | 11.2 | 14.8 | 16.5 | 17.6 | 21.5 | |
| Exhaust gas temperature (℃) | ≤90 | ≤90 | ≤90 | ≤90 | ≤90 | |
| Combustion mode | Negative micro-pressure sliding combustion | |||||
| Applicable altitude (m) | Areas with altitude less than 500 meters | |||||
| Dimensions of boiler proper (L×W×H) (mm) | 6000×4310×8600 | 8170×3470×11500 | 8290×3760×12300 | 8320×3920×12500 | 10120×5730×17700 | |
| Dimensions after installation (L×W×H) (mm) | 12000×6650×10640 | 11935×6500×15200 | 12140×6920×15700 | 12180×7150×15960 | 14180×7530×19700 | |
| Main steam valve diameter (mm) | DN150 | DN200 | DN200 | DN200 | DN250 | |
| Safety valve diameter (mm) | 2×DN80 | 2×DN100 | 2×DN100 | 2×DN125 | 2×DN150 | |
| Water inlet diameter (mm) | DN50 | DN65 | DN65 | DN80 | DN80 | |
| Blow-down diameter (mm) | 40;50 | 40;50 | 40;50 | 40;50 | 40;50 | |
| Ash Discharge System | Chain-and-Flight Ash Remover | |||||
| Ash disposal system | Customized | |||||
| Water treatment system | Customized | |||||
| Desulfurization and denitrification system | Customized | |||||
| Deaerator feed water pump | Flow(m³/h) | 10–12 | 15–18 | 20–24 | 25–30 | 30–36 |
| Lift(m) | 50–60 | 50–60 | 50–60 | 50–60 | 50–60 | |
| Boiler feed water pump | Flow(m³/h) | 10–12 | 15–18 | 20–24 | 25–30 | 30–36 |
| Lift(m) | 168–200 | 168–200 | 168–200 | 168–200 | 168–200 | |
| Control cabinet | Customized | |||||
| Primary Air Fan | Flow(m³/h) | 11800 | 17700 | 23600 | 29500 | 35400 |
| Pressure (Pa) | 3200 | 3264 | 3329 | 3396 | 3464 | |
| Secondary Air Fan (FGR) | Flow(m³/h) | 4175 | 6263 | 8350 | 10438 | 12525 |
| Pressure (Pa) | 3700 | 3774 | 3849 | 3926 | 4005 | |
| Tertiary Air Fan | Flow(m³/h) | 7000 | 10500 | 14000 | 17500 | 21000 |
| Pressure (Pa) | 3700 | 3774 | 3849 | 3926 | 4005 | |
| Induced draft fan | Flow(m³/h) | 16700 | 25050 | 33400 | 41750 | 50100 |
| Pressure (Pa) | 4000 | 4200 | 4410 | 4631 | 4862 | |
| Soot blower | G-type fixed-rotary type/ Impulse type | |||||
| Dia. & Height of stack(mm) | According to the local environmental protection requirements / environment impact assessment report | |||||
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 for 40t/h ~ 75t/h
| Model Parameters | DHW40 | DHW50 | DHW60 | DHW75 | ||
|---|---|---|---|---|---|---|
| Structure | Single-drum horizontal water tube boiler | |||||
| Rated evaporation (T/H) | 40 | 50 | 60 | 75 | ||
| Working pressure (MPa) | 1.25;1.6 | 1.25;1.6 | 1.25;1.6 | 1.25;1.6 | ||
| Steam temperature (saturated °C) | 194;204 | 194;204 | 194;204 | 194;204 | ||
| Slightly superheated steam temperature (℃) | 230-250 | 230-250 | 230-250 | 230-250 | ||
| Feed water temperature (℃) | 104 | 104 | 104 | 104 | ||
| Boiler efficiency (%) | ≥90 | ≥90 | ≥90 | ≥90 | ||
| Design fuel | Bulk biomass materials such as forest wastes, sliced materials; bundled materials such as bean stalks, corn stalks and rice straw | |||||
| Heating area (M²) | 1709.9 | 2312.56 | 2712.21 | 3287.65 | ||
| Full water capacity (M³) | 23.3 | 28.5 | 29.8 | 33.6 | ||
| Exhaust gas temperature (℃) | ≤90 | ≤90 | ≤90 | ≤90 | ||
| Combustion mode | Negative micro-pressure sliding combustion | |||||
| Applicable altitude (m) | Areas with altitude less than 500 meters | |||||
| Dimensions of boiler proper (L×W×H) (mm) | 11850×8000×21790 | 12350×8000×22280 | 13100×7800×24580 | 13920×8300×25920 | ||
| Dimensions after installation (L×W×H) (mm) | 16720×10500×23790 | 17220×10720×24280 | 26700×11800×26580 | 27950×12600×27950 | ||
| Main steam valve diameter (mm) | DN250 | DN300 | DN350 | DN350 | ||
| Safety valve diameter (mm) | 2×DN150 | 2×DN200 | 2×DN250 | 2×DN250 | ||
| Water inlet diameter (mm) | DN80 | 2×DN80 | 2×DN100 | 2×DN125 | ||
| Blow-down diameter (mm) | 40;50 | 40;50 | 40;50 | 40;50 | ||
| Ash Discharge System | Chain-and-Flight Ash Remover | |||||
| Ash disposal system | Customized | |||||
| Water treatment system | Customized | |||||
| Desulfurization & denitrification system | Customized | |||||
| Deaerator feed water pump | Flow (m³/h) | 40–48 | 50–62 | 60–72 | 60–72 | |
| Lift (m) | 50–60 | 50–60 | 50–60 | 50–60 | ||
| Boiler feed water pump | Flow (m³/h) | 40–48 | 50–62 | 60–72 | 60–72 | |
| Lift (m) | 168–200 | 168–200 | 168–200 | 168–200 | ||
| Control cabinet | Customized | |||||
| Primary Air Fan | Flow (m³/h) | 47200 | 59000 | 70800 | 94400 | |
| Pressure (Pa) | 3533 | 3886 | 4275 | 4703 | ||
| Secondary Air Fan (FGR) | Flow (m³/h) | 16700 | 20875 | 25050 | 33400 | |
| Pressure (Pa) | 4085 | 4167 | 4583 | 5042 | ||
| Tertiary Air Fan | Flow (m³/h) | 28000 | 35000 | 42000 | 56000 | |
| Pressure (Pa) | 4085 | 4494 | 4943 | 5437 | ||
| Induced draft fan | Flow (m³/h) | 66800 | 83500 | 100200 | 133600 | |
| Pressure (Pa) | 5105 | 5360 | 5896 | 6486 | ||
| Soot blower | G-type fixed-rotary type/ Impulse type | |||||
| Dia. & Height of stack (mm) | According to the local environmental protection requirements / environment impact assessment report | |||||
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.
