The LPG Gas Steam Boiler is a WNS horizontal three-pass fire-tube boiler designed for stable saturated steam generation in industrial applications. It uses LPG-fired combustion, compact three-pass heat transfer, and automatic burner control to provide consistent steam output, high thermal efficiency, and flexible installation for process heating and utility systems.
Parameters
|
Model |
Rated Evaporating Capacity (t/h) |
Rated Working Pressure (MPa) |
Saturated Steam Temperature (°C) |
Reference Thermal Efficiency (%) |
LPG Consumption (kg/h) |
Maximum Transportation Weight (t) |
|
WNS0.5-1.0-YQ |
0.5 |
1.0 |
184 |
93–95 |
40–45 |
3–4.5 |
|
WNS1-1.0-YQ |
1 |
1.0 |
184 |
93–95 |
80–90 |
6–8 |
|
WNS2-1.0-YQ |
2 |
1.0 |
184 |
93–95 |
160–180 |
9–12 |
|
WNS3-1.25-YQ |
3 |
1.25 |
194 |
93–95 |
245–275 |
13–16 |
|
WNS4-1.25-YQ |
4 |
1.25 |
194 |
93–95 |
325–365 |
16–20 |
|
WNS6-1.6-YQ |
6 |
1.6 |
204 |
93–95 |
490–550 |
22–28 |
|
WNS8-1.6-YQ |
8 |
1.6 |
204 |
93–95 |
650–730 |
28–35 |
|
WNS10-1.6-YQ |
10 |
1.6 |
204 |
93–95 |
810–915 |
35–45 |
|
WNS12-1.6-YQ |
12 |
1.6 |
204 |
93–95 |
975–1,100 |
40–50 |
|
WNS15-1.6-YQ |
15 |
1.6 |
204 |
93–95 |
1,220–1,375 |
50–65+ |
|
WNS20-1.6-YQ |
20 |
1.6 |
204 |
93–95 |
1,625–1,830 |
65–85+ |
Reference LPG consumption is estimated based on saturated steam production, 20°C feedwater, LPG calorific value of approximately 46 MJ/kg, and a boiler thermal efficiency of 93–95%. Actual consumption varies with LPG composition, burner efficiency, feedwater temperature, operating load, excess-air ratio, and auxiliary heat-recovery equipment. Final values shall be confirmed according to the selected boiler and burner configuration.
Key Features
The furnace and smoke tubes form a three-pass flue-gas path, increasing heat transfer within a compact horizontal boiler body.
The burner management and control system can regulate firing according to steam demand, helping maintain stable pressure during variable industrial loads.
The boiler is supplied as an integrated pressure vessel and combustion system, reducing field assembly requirements compared with large sectional boiler systems.
Working Principle
LPG is supplied to the burner through the fuel train and mixed with combustion air at the required ratio. The burner generates a controlled flame inside the furnace chamber, transferring heat to the surrounding boiler water.
The high-temperature flue gas then passes through the boiler's second and third heat-transfer passes before leaving through the flue outlet. Heat absorbed by the boiler water converts it into saturated steam, which is discharged through the main steam outlet at the specified working pressure.
The control system monitors key operating conditions such as steam pressure, burner operation, and safety interlocks to regulate combustion and protect the boiler during operation.
Typical Applications
Food and beverage processing
Pharmaceutical manufacturing
Textile and garment processing
Chemical and chemical-related production
Paper and packaging production
Rubber and plastic processing
Industrial laundries
Central heating and utility systems
Customization Options
|
Item |
Available Configuration |
|
Steam Capacity |
Standard 0.5–20 t/h range or project-specific design |
|
Working Pressure |
Standard 1.0–1.6 MPa range or according to project |
|
Fuel |
LPG; other gaseous fuels subject to burner configuration |
|
Burner |
Burner brand and control configuration according to project |
|
Gas Train |
Pressure, valve, filter, regulator, and safety configuration |
|
Control System |
Standard automatic control or specified control architecture |
|
Electrical System |
Voltage, frequency, and electrical components according to destination |
|
Accessories |
Feedwater system, water treatment, deaeration, economizer, chimney and related equipment |
|
Documentation |
Technical drawings, manuals, inspection documents and export documentation as required |
Manufacturing & Quality Control
Xinxiang Chengde Energy Technology Equipment Co., Ltd. was established in 2002 and operates one equipment industrial park and three manufacturing bases, with a total site area of approximately 160 acres and standardized workshops covering approximately 69,000 m².
The company has more than 500 employees and specializes in pressure equipment and industrial energy equipment manufacturing.
Its reported qualifications and certifications include:
- A2-level pressure vessel manufacturing license
- Pressure vessel design license
- Pressure pipeline design license
- Pressure pipeline installation license
- ASME-related certification
- CE certification
- ISO 9001 quality management certification
- Environmental management system certification
- National Low Temperature Testing Center product type certification
- More than 70 patented achievements
For export projects, certification scope and applicable standards should be verified against the specific boiler model, pressure rating, destination country, and project requirements before purchase.
Packaging & Shipping
Packaging Planning
Moisture and dust protection
Protective wrapping for control components
Reinforced protection for vulnerable external components
Marking and identification of lifting points
Shipping marks according to buyer requirements
Shipping Methods
Sea Freight: Suitable for standard commercial shipments and large-capacity boilers.
Air Express / Air Freight: Available for selected small components, documents, or samples where applicable.
Custom Logistics: Oversized boiler transportation can be coordinated according to vessel size, destination port, lifting conditions, and local transportation requirements.
FAQ
Q: Can the boiler use LPG with different gas compositions?
A: Yes, within the design limits of the selected burner and fuel system. LPG composition and supply conditions should be provided before ordering so the burner, gas train, and safety devices can be correctly configured.
Q: Does the boiler require a separate water treatment system?
A: A suitable boiler water treatment system is normally required to control hardness, dissolved solids, and other water-quality parameters. The exact configuration depends on the source-water quality, boiler pressure, condensate recovery rate, and local water-treatment requirements.
Q: What information is required for an LPG boiler quotation?
A: For an accurate quotation, buyers should provide the required steam capacity, working pressure, LPG composition or heating value, LPG supply pressure, feedwater temperature, electrical specifications, installation location, applicable standards, and required delivery destination.
Q: What routine maintenance does the boiler require?
A: Routine inspection should cover burner components, safety valves, water-level controls, pressure instruments, gas train, furnace and heat-transfer surfaces. Inspection intervals should follow the equipment manual and applicable local regulations.
Q: Are spare parts available for long-term operation?
A: Common wearing and replacement parts can be supplied according to the boiler and burner configuration. Buyers should identify critical spare parts during procurement to reduce potential downtime.
Q: Is commissioning support available after installation?
A: Commissioning requirements can be provided with the equipment. On-site or remote technical support can be arranged according to project scope, installation conditions, and contractual requirements.
Q: Can the boiler operate under variable steam loads?
A: Yes. The automatic burner control system can adjust firing output according to steam demand within the designed operating range. For facilities with large or frequent load changes, the control configuration should be specified during the engineering stage.
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