150 t/h Industrial Steam Boiler Solutions – Boiler Guide

Explore three 150 t/h industrial steam boiler configurations—modular fire‑tube, SZS water‑tube, and NSZS superheated—designed for optimal efficiency, flexibility, and cost control.

Modular Fire‑Tube Industrial Steam Boiler (5 × 30 t/h Units)

Product Parameters:

• Model: Euro 7 Fire‑Tube Steam Boiler, 30 t/h unit

• Thermal Efficiency: 97 %–103.8 %

• Operating Pressure: 1.25 MPa

• Fuel: Natural gas, LPG, diesel, heavy oil, etc.

Implementation Plan:
Five identical 30 t/h fire‑tube boilers are arranged in parallel under PLC control, with the desired steam output set directly via the PLC. Temperature, pressure and low‑water sensors function solely as safety interlocks.

Advantages:

• High Reliability & Flexibility: Modular design isolates individual units for maintenance without halting overall steam production.

• Simple Maintenance: Fire‑tube configuration allows straightforward access to heat-transfer surfaces.

• Smart Controls: PLC system with dry‑burn protection and pressure‑alarm interlocks ensures safe, automated operation.

• No Chemical Dosing Required: Condensing design captures latent heat, boosting efficiency.

Disadvantages:

• Pressure Limitation: Maximum 1.8 MPa ceiling restricts use in high‑pressure processes.

Comprehensive Evaluation:
Best suited for mid‑pressure applications (≤1.8 MPa) where incremental capacity expansion, minimal downtime, and lower upfront investment are priorities.

Recommendation Index: 9.3/10

SZS Series Water‑Tube Industrial Steam Boiler (5 × 30 t/h Units)

Product Parameters:

• Model: SZS30-1.6-Y(Q)

• Thermal Efficiency: 100 %–104 %

• Operating Pressure: up to 2.5 MPa

• Fuel Flexibility: Natural gas, biogas, coke‑oven gas, etc.

Implementation Plan:
Five SZS water‑tube steam boilers in parallel, coordinated by a centralized PLC. Forced circulation and membrane‑wall construction guarantee stable operation under load swings and enable short‑notice overload capacity.

Advantages:

• Higher Pressure Capability: 2.5 MPa rating supports more demanding process requirements.

• Anti‑Scaling Design: Curved water tubes maintain self‑cleaning action, reducing scaling and downtime.

• Enhanced Safety: Explosion‑proof doors, micro‑pressure combustion, and low water‑inventory design for rapid shutdown protection.

Disadvantages:

• Higher Capital Cost: Water‑tube technology commands a premium over fire‑tube units.

• Water Treatment Needs: Tube bundle design demands consistent water softening and chemical dosing to prevent fouling.

Comprehensive Evaluation:
Optimal for continuous, high‑pressure steam demands where uptime and steam purity outweigh initial investment.

Recommendation Index: 9.5/10

NSZS Series Water‑Tube Industrial Steam Boiler (3 × 50 t/h Units)

Product Parameters:

• Model Range: NSZS50-1.25-Y(Q) (packaged superheated)

• Thermal Efficiency: ≥99 % (LHV basis)

• Operating Pressure: 1.25–5.0 MPa

• Superheat Capability: 450 °C continuous output at up to 5 MPa

Implementation Plan:
Three NSZS series steam boilers delivering 50 t/h each, featuring Siemens S7‑1500 PLC controls, FGR+SCR combustion for ultra‑low NOₓ, and full‑membrane water‑cooled walls for minimal radiant loss.

Advantages:

• Superheated Steam: Precision temperature control (±1 °C) for sensitive process needs.

• High‑Pressure Operation: Up to 5.0 MPa suits power generation or high‑pressure reactors.

• Compact Footprint: Vertical, double‑drum design reduces plant floor space by 40 %.

• Advanced Safety: Triple‑redundant interlocks and emergency blowdown deliver >99.98 % uptime.

Disadvantages:

• Premium Investment & Footprint Constraints: Larger units require reinforced foundations and allow less granularity in capacity control.

• Complex Water Chemistry Management: Superheated operation heightens scale‑formation risk without rigorous treatment.

Comprehensive Evaluation:
Ideal for plants with steady, high‑pressure steam demands and space‑limited installations that justify a higher upfront cost for reduced lifecycle expenses.

Recommendation Index: 9.8/10

Conclusion & Recommendation

All three solutions achieve a combined 150 t/h capacity with distinct trade‑offs:

• Modular Fire‑Tube (5 × 30 t/h) delivers maximum operational flexibility at moderate pressure (≤1.8 MPa).

• SZS Water‑Tube (5 × 30 t/h) balances higher pressure (≤2.5 MPa) with proven anti‑scaling and safety features.

• NSZS Water‑Tube (3 × 50 t/h) offers superheated, high‑pressure (up to 5.0 MPa) steam in a compact footprint for processes requiring stringent temperature control.

For mid‑pressure applications prioritizing uptime, we recommend the SZS Series. For high‑pressure or superheated steam, the NSZS Series is the top performer despite a higher capital outlay.

Order your industrial steam boiler solution now and get a quote

Frequently Asked Questions (FAQ)

1. How do you control steam output in the modular boiler system?
   You just bump the set‑point in the PLC. All the gauges (pressure, temperature, low‑water) are safety cut‑offs—there’s no automatic “feedback” adjusting steam flow.

2. Where do fire‑tube industrial steam boilers really shine?
   In any mid‑pressure shop that needs steady, reliable steam without breaking the bank—think chemicals, textiles or food & beverage plants.

3. Why opt for superheated steam at 450 °C?
   Raising steam to 450 °C at 5 MPa dries it out completely and packs it with extra thermal energy. That makes it ideal for turbine drives or precision heating processes where even a little condensation can cause issues.

4. What should I consider when choosing between these boiler types?
   Look at your required pressure and how much floor space you’ve got. Run the numbers on upfront vs. running costs and factor in how easy (or hard) it is to service.

If you require a custom industrial steam boiler or need a custom quote, we will create a design for you free of charge.