wns horizontal fuel (gas) boiler -凯发平台

shangneng wns horizontal fuel gas boiler principle introduction

the wns horizontal oil-fired gas-fired boiler produced by zhejiang shangneng boiler co., ltd. is a three-way full-fired back-fired boiler of shell type internal combustion designed and produced according to domestic and foreign advanced technology and experience, which can both fuel oil and gas.

1. horizontal internal combustion three-way wet back structure

this series of boilers is a horizontal internal combustion three-way wet-back structure consisting mainly of a furnace liner, a return chamber, a pyrotechnic tube bundle, and a front and rear smokebox. the combustion equipment is installed at the front of the boiler. the boiler main unit is an overall structure. the burner is assembled on the front cigarette box cover. the main part is arranged with the heating surface and the combustion chamber. it has the characteristics of reasonable structure, compactness and low steel consumption. the furnace uses offset waveform furnace and insulation layer. the new lightweight thermal insulation material is selected, and the outer package is made of stainless steel plate, so that the performance, weight, structure size and appearance of the boiler are significantly advanced and aesthetically pleasing compared with domestic products with the same capacity. the boiler feed water equipment is arranged on the boiler base on the right side of the boiler so that it is integrated with the main engine, and no additional foundation is required.

2. all wet back smoke three return structure

the combustion flame is sprayed from the front burner in the furnace to the rear, and radiant heat is transferred to the furnace and the re-combustion chamber to form the first return. after the high-temperature flue gas is fully burned in the large space re-combustion chamber, it is turned back 180 degrees. from the threaded tobacco pipe forward smoke box, convection heat to the wall of the smoke pipe, forming a second return; flue gas in the front cigarette box turn 180 degrees bend, from the threaded tobacco pipe to the rear smoke box, convection heat in the tube to form the third return. after the flue gas flows through the rear smoke box, it absorbs the waste heat through the economizer. after the temperature drops to about 140°c, it is discharged from the chimney into the atmosphere. the furnace liner, return chamber and threaded tobacco pipe are all immersed in water. the overall design of 100% water package fire improves the thermal efficiency and prolongs the service life of the boiler.

3. large diameter full-wave furnace

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the combustion chamber adopts a large-diameter hot-rolled full-corrugated furnace bile structure, which has a large combustion space to ensure full combustion of the fuel; a 100% sculpted furnace chamber is conducive to absorbing thermal expansion, improves flexibility, reduces thermal stress, and has good thermal expansion properties. it can satisfy the free expansion of the furnace after heating and prolong the service life of the boiler. it will produce high-temperature flue gas flow, enhance heat transfer, increase the heating area, and increase the thermal efficiency of the boiler.

4. lower firing chamber

when the boiler is designed, the combustion chamber (furnace) is arranged in the middle position of the boiler body, so that the furnace with the highest temperature is in the low temperature water level. when the water capacity in the boiler is fixed, the safe water level in the boiler is increased to maximum, minimize water shortages. when the boiler water level fluctuates, there is no danger of dry burn. the smoke pipe can be symmetrically arranged left and right, so that the thermal stress is symmetrical to ensure that the boiler is heated evenly. and form two downward and upward water circulation loops on both sides, forming a relatively “stable” settlement area at the bottom, which is also conducive to daily sewage disposal.

5. symmetrical arrangement of self-cleaning threaded tobacco pipe

all the smoke pipes of the boiler adopt self-cleaning threaded tobacco pipes, and are arranged symmetrically to the left and right, so that the force in the furnace is even and the stress state of the front and rear tube plates is improved; the flue gas flow is highly turbulent under the disturbance of the thread of the inner wall of the smoke pipe. the movement enhanced the convective heat transfer intensity, enhanced the heat transfer effect, and improved the boiler thermal efficiency. in thread tobacco processing, great attention is paid to the control of thread depth. tests show that the thread depth of the threaded tobacco pipe has a great influence on the heat transfer performance. when the thread depth is reduced from 2 mm to 1 mm, the heat transfer coefficient will be reduced by 20%.

6. steam boiler large water capacity, large steam space

steam boiler large water capacity, large steam space, especially for users with large load fluctuations (such as tobacco, food, large hotels, etc.). the large steam space allows the steam to escape from the water surface at a low speed, and is equipped with a well-designed built-in steam separator device to ensure stable output of high-quality steam to meet the user's demand for steam quality.

7. openable smoke box

the front and rear smoke boxes are hinged and can be easily opened, making inspection, maintenance and cleaning of the boiler more convenient. double door heat insulation reduces the panel temperature and improves thermal efficiency.

8. rear smoke box hydrophobic device

discharge the condensed water in the smoke box at the time of operation to prevent corrosion of the tube sheet and prolong the service life of the boiler.

9. rearview mirror device

rearview mirror device design and configuration, easy to observe the fuel combustion conditions.

10. extended heating surface

the energy saver can be configured according to the user's requirements to further reduce the temperature of the exhaust fumes, absorb the sensible heat and latent heat in the flue gas, and increase the thermal efficiency of the boiler.

11. beautiful design

the new thermal insulation material and high quality stainless steel plate packaging, light weight, good insulation properties, beautiful appearance, durable, non-corrosive, provide elegant products for high quality products.

the organic combination of mechatronic appearance, sophisticated novelty, compact structure, less space, convenient transportation, installation.

12. configuration imported brand burner

all the boilers are equipped with various imported brand-name burners, such as weisuo, olin, riya road, black, liwei, etc., and adopt automatic proportional adjustment. the atomization methods include pressure atomization, low-pressure air atomization, and rotary cup type. atomization, suitable fuels are light diesel oil, heavy oil, natural gas, pipeline gas, liquefied gas, biogas, special combustible and harmful gases. dual fuel burners can be configured to meet the needs of users, both fuel and gas. fully automatic combustion regulation ensures full combustion and reduces pollution.

therefore, shangneng wns horizontal fuel gas boiler is an ideal high-efficiency, low-consumption, low-pollution green environmental protection product.

shangneng wns type horizontal fuel gas boiler adopts the offset boiler bile wet back structure. the high-temperature flue gas sequentially flushes the second and third return smoke pipes, and then is discharged into the atmosphere from the rear smoke room through the chimney.

the boiler is equipped with active front and rear smokebox covers to facilitate boiler overhaul. the burner with good boiler configuration technology adopts advanced technologies such as automatic proportional combustion control, automatic water supply regulation, program start-up and shutdown, and automatic operation. it also has high and low water level alarms and automatic protection functions such as extremely low water level, high vapor pressure, and flameout. .

shangneng wns horizontal fuel gas-fired boiler has the advantages of full combustion, no pollution, easy operation, easy installation, etc.; high thermal efficiency, large output, strong load adaptability, high degree of automation, easy operation, safe and reliable operation; can be used fuel: light oil, heavy oil, natural gas, city gas, liquefied petroleum gas; investment province, low operating costs: no need to prepare any dust and other auxiliary equipment, less land, infrastructure investment costs, no large-scale oil storage and storage space , high-efficiency output, saving operating costs; can be arranged inside or outside the building, providing central heating, widely used in district heating districts, hotels, commercial buildings, colleges, banks, large and medium-sized offices and clean villa community.

shangneng wns horizontal fuel gas boiler is an ideal high-efficiency, low-consumption, low-pollution green environmental protection product.

1. boiler is equipped with active front and rear smoke box covers, boilers are easy to overhaul;

2. burner with good boiler configuration technology;

3. full combustion, no pollution, easy operation, easy installation;

4. high thermal efficiency, large output, strong load adaptability, high degree of automation, easy operation, safe and reliable operation;

5. can use a variety of fuels: light oil, heavy oil, natural gas, city gas, liquefied petroleum gas;

6. investment province, low operating costs: no need to formulate any dust and other auxiliary equipment, occupy less land, save infrastructure investment costs, do not need large-area oil storage and storage space, save operating costs;

7. the boiler operation site is flexible and can be arranged inside or outside the building to provide central heating;

8. the scope of application is wide, and it can be used in centralized heating districts, hotels, commercial buildings, colleges and universities, banks, large and medium-sized offices and clean villas.