Each pressure element of the three-return oil-fired boiler should be able to expand freely according to the design predetermined direction during operation. Ensure the normal circulation of water in each loop, and all heating surfaces should be reliably cooled. Three return steam boiler compression components should be sufficient strength. The form of the compression element, the structure of the parts, the arrangement of the holes and welds should avoid reducing the composite stress and stress concentration as far as possible. The structure of the water cooled fireplace wall should be sufficient for carrying capacity.
The furnace wall of this series of oil fired boilers should have good sealing. Open the necessary manhole, hand hole, inspection hole, fire door, ash door, easy to install, operation, maintenance and cleaning inside and outside. There should be safety accessories and display instruments that meet the requirements to ensure the normal operation of the equipment. The blowdown structure of the boiler is strained to blowdown. Imported burner +PLC touch control system + brand auxiliary accessories.
The whole heating surface of the three return steam boiler is arranged symmetrically, the structure strength is firm, and the water circulation system is reasonable. This series of boiler products have large water capacity, large steam space, good steam quality and small water level fluctuation during operation. Large distance between the two drum, pipe diameter, to ensure good natural circulation. Unique furnace setting and flue gas to the hot surface scour way, so that the heat loss of the boiler is small.
The furnace and the combustion chamber of the oil-fired steam boiler adopt the wet-back structure, and the water layer encloses the high temperature flame, which strengthens the heat transfer effect. At the same time, the flue gas is designed for three downstream return, the flue gas process is long, the exhaust temperature is low, and the thermal efficiency is high. Using large diameter corrugated furnace at the same time, is beneficial to thermal expansion, has good elasticity structure, effectively increase the radiation heating area at the same time, strengthen the turbulent heat transfer performance of the high temperature flue gas, the lower furnace outlet smoke temperature, eliminates the due to the large furnace thermal stress caused by shorten the life problem of boiler, scientific and reasonable, durable.
The convective heating surface of oil-fired boiler adopts threaded flue gas pipe technology, and the strong disturbance of flue gas can obtain good elasticity. At the same time can also increase the heat transfer efficiency, heat transfer coefficient is high, effectively save fuel consumption, effectively reduce operating costs. The three-return oil-fired steam boiler is built with a high efficiency steam separator to match the steam phase space of the boiler. Fully ensure the separation of steam and meet the requirements of users for higher quality steam.
The three return steam boiler water circulation is simple, the compression parts structure is reasonable, under the condition of ensuring the water quality, can operate safely. This product is made up of three parts: boiler main engine, chimney and pipeline system. The main engine and chimney parts have been manufactured in the factory, and the pipeline valves and instruments for the main engine have been installed at random. The main engine and chimney can be assembled on site. The air source, power supply and water pipe can be connected on site. Greatly shorten the installation cycle, and can ensure product quality.