Overview
| Rated evaporation capacity | 3000kg/h | Rated steam pressure | 1.25Mpa |
| Steam temperature | 194 ℃ | Hydrostatic test pressure | 1.65Mpa |
| Feed water temperature | 20 ℃ | Smoke exhaust temperature | 128.07 ℃ |
| thermal efficiency | 94.5% | Boiler main steam diameter | DN80 |
| Boiler safety valve diameter | DN50 | Chimney diameter | Φ five hundred |
| Boiler water supply outlet | DN40 | Boiler discharge diameter | DN50 |
| Applicable fuel | natural gas | Boiler heating area | 69.3 square meters |
| Overheated air coefficient | one point one three | Scope of safe and stable operating conditions for boilers | 80% -100% |
| Boiler water volume | 5.5m ³ | Boiler weight | 9T |
Product Details
1、 Product Introduction
The design of this product complies with the regulations of TSG G0001-2012 "Boiler Safety Technical Supervision Regulations", TSG G0002-2010 "Boiler Energy Saving Technical Supervision and Management Regulations", GB/T16508.1~16508.8-2013 "Shell Boilers", and NB/T47034-2013 "Technical Conditions for Industrial Boilers".
This product model is WNS3-1.25-Y (Q), which is a horizontal internal combustion oil (gas) fast installed boiler with a wet back structure. The corrugated furnace liner and combustion chamber have one return, and the second and third return are threaded smoke pipes. An energy-saving device is installed on the upper part of the boiler. The boiler is equipped with fully automatic control and protection devices with high and low water level alarms and low water level interlock protection functions; The automatic ignition of the boiler, automatic adjustment of burner firepower, and flameout protection ensure the operation of the boiler.
The designed fuel for this product is light oil or natural gas; The fuel is sprayed out of the burner and ignited by an electronic ignition rod. It burns under slight positive pressure in the furnace chamber. The high-temperature flue gas after combustion enters the second and third return threaded smoke pipes by turning 180 ° from the combustion chamber, and enters the energy-saving device for heat exchange by turning 180 ° from the upper part of the rear smoke box. It is then discharged into the atmosphere through the chimney.
2、 Introduction to Boiler Operating Conditions
The operating parameters of this boiler under rated load are: feed water temperature is 20 ℃, pressure is 1.25MPa, and 3 tons of water vapor with a temperature of 194 ℃ can be generated within 1 hour. When using light diesel as fuel, the calculated thermal efficiency is 94.3%, exhaust gas temperature is 92.5 ℃, and light oil consumption is 202kg/h. When using natural gas as fuel, the calculated thermal efficiency is 94.1%, the exhaust temperature is 91.7 ℃, and the natural gas consumption is 244NMthree/H.
3、 Product Structure Introduction
The boiler consists of a pressurized body, base, packaging and insulation, flue, instrument valves and accessories, front and rear smoke boxes, platform ladder, energy-saving device, and electrical control system.
The overall structure of the boiler body adopts a lower furnace liner, with smoke pipes arranged symmetrically on the left and right sides, and the drum is composed of φ one thousand nine hundred and four × 12 cylinder and φ one thousand and nine hundred × Formed by welding the front and rear tube plates of 14; One return trip is a waveform furnace, which is composed of φ eight hundred × 10 waveform furnace liner composition; The use of a corrugated furnace liner structure not only increases the heat transfer area, but also satisfies the free expansion of the furnace liner after heating; The combustion chamber is composed of φ one thousand and three hundred × 12 Inner front and inner rear tube plates and φ one thousand two hundred and ninety-six × Made by welding the cylinder body of 16; Adopting a wet back form avoids direct erosion of high-temperature flue gas on the rear smoke box, improving the reliability of boiler operation. 2、 130 pieces for each of the three return trips φ fifty-one × 3 threaded smoke pipes; Threaded smoke pipes can enhance heat transfer, thereby reducing the heating area, making the boiler structure compact and saving steel. Install energy-saving devices on the furnace top, with 96 energy-saving devices used φ thirty-two × Composed of 3 spiral finned tubes, thereby increasing the heating surface and reducing the exhaust temperature of the boiler.
The front and rear smoke boxes adopt an integral double door structure, which has good integrity, aesthetics, and elegance. It is easy to open during maintenance and has good sealing performance; Adopting aluminum silicate fiberboard as insulation material, it has good insulation performance, light weight, and convenient transportation and installation; The upper part of the boiler is equipped with a manhole device, and the lower part of the rear smoke box is equipped with an inspection device for easy maintenance and upkeep.