WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler.
DZL series package boilers are horizontal three-pass water & fire tube boilers with a chain grate stoker structure.
circulating fluidized bed combustion (CFBC) technology has many advantages that other combustion methods do not have.
YLW thermal oil heater is square coil horizontal chain grate shop-assembled heater, chain grate and heater proper are transferred separately.
Whatever your requirements, you 'll find the perfect service-oriented solution to match your specific needs with our help.We are here for your questions anytime 24/7, welcome your consultation.Chat Online
The posterior part is exposed to the atmosphere. This leads to the increased radiation losses, as the radiant heat is lost to the atmosphere instead of going to the water as in wet back boilers. Earlier generation boilers used to be dry back. Thus wet back boilers ensure lesser radiation losses and hence save fuel.View More
These types of boiler also have radiation losses but are less as compared to dry back boilers. Fully Wet Back Boilers. The third and the most energy efficient boilers are the fully wet back boilers in which the whole wrapper drum which is connected to the furnace from where the flue gases reverse its path is surrounded by water and so there are minimum or no radiation …View More
dimensional model of radiation. Radiation heat transfer accounts for 90–98% of the total heat transfer in the furnaces of steam boilers [1, 2], torch heating , and electric arc steel-smelting furnaces [4, 5]. In a torch, an electric arc emits quadrillion atoms, the radiatio n of each atom to the calculation site must be taken into account,View More
modeling radiation heat transfer in combustion systems. The importance of radiative transfer in coal combustion, 3 pulverized coal-fired boilers,'* indus- trial furnaces, 5 gas turbine combustors 6 and fires 7 has been recognized for some time. Radiative transfer in …View More
Our offered Wet Back Boiler that comes with a reversal chamber that is completely surrounded by water, which is used to direct flow gasses from the furnace to the tube banks. The surrounding water absorbs burner heat, helping …View More
WNS series automatic fuel gas steam boilers are all shell-type three-return, full wet back structure. Steam boiler features: All pressure components are symmetrical with the center of the drum. The boiler adopts a fully wet back structure with a large inner cylinder and an eccentric fire box structure, which is beneficial to provide sufficientView More
i – Three pass horizontal smoke tube economic shell type Boiler ii – Designed and Fabricated in accordance with Indian Boiler Regulations (IBR) iii – Stage inspected, hydraulically shop tested and certified by Director Steam Boilers . iv – Wet back construction having very good heat absorption in the radiant heating zone. v – Furnace is provided with a large radiant heating …View More
Jul 10, 2013· This steam boiler adopts wet back structure, it can adapt to high temperature, has a good sealing, increase the radiation heat transfer area and improve the heat transfer efficiency. Characteristics of Condenser. 1.View More
The utility model discloses a kind of horizontal three return stroke wet back types fuel-firing gas-firing steam boiler, including shell cylinder, tube sheet, flue, return combustion chamber, front smoke box, rear smoke box, two return smoke pipe, three backhaul smoke pipes, the flue is provided with interval waveform protrusion element, and the two return smoke pipe is helicitic …View More
This boiler adopts wet wet back structure, it can adapt to the high temperature, has a good sealing, increase the radiation heat transfer area and improve the heat transfer efficiency. Xinli Boiler update WNS series boiler, equipped high efficiency economizer and condensier, to absorb the heat of waste smoke gas, to increase the boiler thermalView More
In stationary service, boilers are either of the Dry-Back or Wet-Back type. DRY-BACK – The baffle provided in a firetube boiler joining the furnace to the second-pass to direct the products of combustion that is so constructed to be separate from the pressure vessel and constructed of heat resistant material.View More
BOILER TYPES FOR STEAM APPLICATIONS 4. Improving the Heat Transfer Rate: The heat transfer rate can be improved which can increase the efficiency, reduce the heat transfer surface or a combination of both. There are some common methods to do this; a. Increasing the flue gas velocity will directly increase the efficiency (up to a point)View More
A steam boiler is designed to absorb the maximum amount of heat released from the process of combustion. There are three way (Radiation, convection & Conduction) that heat is transfer in the boiler and relative percentage of each heat transfer within system boiler is dependent on the type of steam boiler, fuels and the designed transfer surface.View More
free water backed turnaround provides better heat absorption at the most critical heat transfer point. Wetback vs Dryback 24. Maintenance Costs Comparison Bottom Line We surveyed a few of our service reps who perform repair/maintenance work on boilers and specifically asked them to share dryback expenses.View More
This horizontal type oil fired boiler is horizontal type fast assembly fire tube boiler with three pass structure, it has compact structure, small volume, strong load adaptability and low water quality requirement This boiler adopts wet back structure, it can adapt to the high temperature, has a good sealing, increase the radiation heatView More
The Boiler is made with a lot of heating surface, normally five Square feet of heat transfer surface per boiler HP. This produces higher resistance and efficiency to fouling. As this boiler has a large diameter shell that contains water and steam and also a steam chest, the disengaging area produces good quality steam without the addition ofView More
1. WNS series oil fired boiler adopts the boiler structure of three passes fully wet back technology. 2. The design of furnace heat transfer and flue gas tube radiation heat transfer is reasonable, the boiler layout is reasonable, and the thermal efficiency is high. 3.View More
The most efficient modern boilers supplied are wetback type. Dry Back Boilers. The reversal chamber is dry back boilers is not completely surrounded by water. The posterior part is exposed to the atmosphere. This leads to increased radiation losses, as the radiant heat is lost to the atmosphere instead of going to the water as in wet back boilers.View More