hot water boiler fuel oil type around 300kw capacity
Reducing the project covers an area large steam boiler and therefore a large high-pressure steam boiler pipe insulation manufacturers buried heating pipe does not require masonry huge trench, just insulation pipe buried underground people, thus greatly reducing the project area, reducing earthwork open dig about 50% or more, reducing the amount of civil masonry and concrete 90%. Gas boiler, pipe insulation and processed in parallel trenching site, linker site only, shorten the construction period can be greater than about 50%, thermokeeping pipe is widely used a liquid, a gas pipeline network, Chemical Engineering Oil pipe insulation, the vapor Hence largest chemical boiler, central heating network, air conditioning and ventilation ducts, municipal engineering. Buried pipe insulation is one kind of good insulation properties, plus safe, reliable, low construction cost of the prefabricated buried pipe insulation. Effective solution incubated urban centralized heating with a high temperature heat input thermokeeping tube, sliding and water lubrication problems exposed tube ends. Buried pipe insulation not only has the traditional trench laying of pipelines and overhead incomparable advanced technology, practical performance, but also has significant social and economic benefits, but also energy-saving heating of effective measures. Prefabricated buried pipe insulation technology using buried heating pipe, marking polyurethane insulation heating pipe technology development has entered a new starting point. Reporters noted that this year again Yajian steel production capacity of about 50 million tons, quit more than 150 million tons of coal production capacity. Even the industry is expected this year to production capacity will be extended to glass, construction accounted for a large reduction in the steam boiler electrolytic aluminum, cement and shipbuilding industries. High pressure steam boiler pipe insulation manufacturers of polyurethane buried insulating pipe evacuated provided.
Chinese wine culture has a long history, wine blend. In the process of making wine, almost all wine prices are inseparable from the brewing process steam, we can say the stability and quality of steam purity of the wine production plays a decisive role. Lefort Wine has been committed to producing high-quality wine products, December 2016 No. 1, Lefort wine and I signed a one 4 tons of steam condensing steam boilers, the company continues to provide high-quality wine work steam.
Introduction of fuel gas-fired boiler fuel gas-fired boiler Product Description: Fuel gas-fired boiler fuel but also refers to both gas boiler. Only boiler fuel called oil-fired boiler, gas boiler can only be called a gas boiler. If the configuration boiler fuel gas or dual fuel burners, then the boiler is oil or gas boiler. Fuel gas-fired boiler is a more general concept, fuel gas-fired boiler is divided into water boilers, hot water boiler fuel type around 300kw capacitys, steam boilers and thermal oil boiler, according to their own use to select a different fuel gas-fired boiler time of purchase. Fuel gas-fired boiler is different from coal-fired boilers, which requires the use of a burner fuel is injected into the boiler furnace using a combustion chamber without the use of fire grate facilities. Because not produce fuel ash after burning fuel gas-fired boiler, fuel gas-fired boiler so without slagging facilities. Oil injected into the furnace, if the gas and air mixture within a certain range, or turned off, it is easy to explode. Therefore, fuel gas-fired boiler combustion required to adopt automation and control systems. Fuel gas boiler compact, small boiler and ventilation, water supply, control and auxiliary equipment are arranged on a distribution box, it may also be assembled and medium-sized factory. Advantages: the advantages of fuel gas-fired boiler: 1), high efficiency boilers. 2) simple structure. 3), supporting the use of simple auxiliary. 4), and the whole intelligent automatic control system with multiple levels of protection. 5) equipped with burners (blower) and a flue muffler system, reduce the noise of the boiler operation. 6), should be equipped with automatic dosing unit, the water treatment device. 7), with other monitoring and limiting device should be at least 24 hours to ensure that the boiler safe operation of unsupervised. 8), before starting the first boiler is purged before ignition function automatically. Boiler maintenance: (1) Dry regimen: the boiler furnace shutdown to discharge water, the inside completely remove the dirt, rinse, drying in the furnace with Weihuo (be careful not to fire), and a diameter of 10-30 mm in size massive quicklime installed sub-plate, placed in the drum, without contacting the metal with lime, quicklime weight, calculated to the drum 8 kilograms per cubic meter volume, then all manholes, hand holes pipe valve closed, checked every three months, such as lime ingredients like broken, i.e. the need to replace, should be re-run the boiler and the lime disk unloading. (2) Wet regimen: After Shutdown of the water discharge released, the internal completely remove the dirt, rinse, refill treated water to the full, the water was heated to 100 deg.] C oven, so that the water discharge gas outside of the furnace, then close all the valves, cold climates where moisture can not support the use of law, so as not to damage the boiler furnace water freezes. Structural features; fuel gas boiler is different from the coal-fired boiler, which requires the use of a burner fuel into the boiler furnace using a combustion chamber without the use of fire grate facilities. Because not produce fuel ash after burning fuel gas-fired boiler, fuel gas-fired boiler so without slagging facilities. If the hydrocarbon injected into the furnace with the air mixing within a certain range, or turned off, it is easy to explode. Therefore, fuel gas-fired boiler combustion required to adopt automation and control systems. Fuel gas boiler compact, small boiler and ventilation, water supply, control and auxiliary equipment are arranged on a chassis, the assembly may also be medium-sized factory. Now the main element and the pressure connection of the fuel gas boiler are as follows: 1, the main fire tube boiler pressure parts: the boiler shell, a tube sheet, furnace, smoke pipe; 2, the main pressure element water tube boiler: drum (drum), water wall boiler bank, serpentine tube header; 3, the main pressure connection element fuel gas boiler: the main welding, expansion may be part.
The main structure of the internal combustion boiler detail: In the combustion boiler is a main flue of all, combustion residue after combustion of the fuel without directly heating the surface of the mixed working fluid is heated and the flue gas, together with steam as the working fluid work output of method of operation, high efficiency boilers. The internal combustion boiler thermal industry is part of the production of steam. Next to be described in detail the structure of the main combustion boiler: a boiler shell, the pressure receiving member is an important potshell shell type boiler, it is the role space for storing water and soda and steam are separated place. In shell type boiler, boiler shell placed combustion chamber (furnace) and the heating surface, the effect of which was underway boiler body. Potshell cylindrical container is made of welded steel sheet, we split it into three parts: the cylindrical portion is an intermediate portion, both ends of the tubesheet portion is simplified, and some people open end of the tube sheet hole. Simplified by the two or more tube sections butt weld made, the minimum length of the barrel section is not less than 300mm. When the boiler is greater than the inner diameter of the shell boiler 1000mm. Simplified access potshell wall thickness should be not less than 6mm, inner diameter of the shell when the pot is not more than 1000mm, simplified access to the boiler shell thickness is not less than 4mm. Both sides of the drum and the tube plate is connected to the boiler shell simplified, many small holes drilled in the tube plate, through the hole in the fire tube. Front tube plate further defines a larger hole furnace connected. There are many simple pan upper takeover, which takes over a main steam valve, safety valve, manometer, water gauge and the like. Pan with water separator housing interior, surface sewage, and the like into the water. 2, furnace, furnace boilers are specific shell type pressure element, inside a furnace combustion chamber, the outer coating from the boiler water. Furnace outside the furnace by the water pressure. Therefore, it is the worst working conditions the pressure element shell type boiler. Because the furnace by the high temperature flame burning, the temperature is higher than the temperature of the boiler shell, its thermal expansion problems particularly prominent in the boiler fuel, the oil combustion temperature is high, a high furnace thermal strength, severe temperature changes, there is required furnace good performance thermal expansion and contraction. General furnace are made waveform. And some shell type boiler or furnace to a flat circular flat circular shape Singapore. 3, fire tube, the main fire tube boiler heating surface of the boiler shell. Generally use is made of boiler steel φ51mm ~ φ102mm, the front and rear tube plate by welding or play mode coupled expanded joint, when Expansion, connecting the fire tube and inflation port after inflation tube plate using 90 ° pull side contact. Front and smoke at a relatively low temperature plate, inflation bell mouth pull side can be connected. When a welded connection, in order to ensure sufficient bonding strength, and the tube end is not overheating, the tube end projecting required length of the tube plate is not less than the wall thickness plus 1.5mm, but not in excess of the connecting seam 5mm. Imported oil-fired boiler, and some in the furnace exit, fire tube to tube sheet welding connection. But in other parts of the fire tube to tube plate with flange 90 connected to the expander. Effect is produced outside the smoke tube of the tube furnace heated by flue gas through the combustion water in the tube, in order to gradually generate steam, also called "squib." Generally have the following forms: a straight barrel, also called "light pipe", the advantage of a small light pipe smoke resistance, the disadvantage is fouling the inner pipe easily. Heat transfer effect is also poor. Light pipes are typically seamless steel tube, but also useful for welding boiler tube inlet. Another is a threaded tube, which is pressed inwardly out of a recess in the seamless pipe, it seems like a thread, so called "threaded pipe." The advantage is that the flue gas flow within the tube, changing the flow cross-sectional area, the flow velocity of flue gas is also changed and swirl effect. Therefore, it is better than the light of the heat transfer tube and hard fouling. The disadvantage is greater than the resistance through the light pipe has a certain velocity before the flue gas swirl effect more obvious. The third is to add steel wire or steel wire to the formula Fu light tube. It is a light pipe inside the tube into a tube-type inflammation oxidation resistance good steel wire, inside the flue gas flow at the fire tube, steel wire plays a role similar to the threaded tube. If you want to fire tube cleaning, can easily be removed steel wire, steel wire and light pipe are more convenient cleaning. This form of fire tube easy to manufacture, simple maintenance. In order to maintain the strength of the tube plate, according to strength calculation, be reinforced hole in a predetermined position region of the tube plate. Specific fire wall is thickened, with a thick-walled welded tube to tube plate, so that both as reinforcement, acting also as heating surface, the thick-walled tubes referred to as "bracing tube."