5 mw oil fired hot water boiler

5 mw oil fired hot water boiler

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, 5 mw fired hot water boilers, 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.

Tai Chi, Jiaozuo City, Jiaozuo City Sports Center is one of important sports infrastructure, a total area of ​​11.73 hectares, held several international events. With strict management in Henan Province for air emissions of pollutants, Jiaozuo City, also launched the governance of coal-fired boilers, thermal power and other equipment. Jiaozuo Sports Center actively cooperate with municipal workers, took the lead from coal to gas activities, the serious pollution of the original extent of coal-fired boilers to replace gas boilers. Gas boiler cleaning binding understanding of the market, to achieve cooperation with the finalization fast boiler by providing a fast side 2.8MW integrally condensing gas 5 mw fired hot water boiler (WNS2.8-1.0 / 95/70-YQ), it is used to Sports Center provides heating and hot water.

Above or from the energy saving electric boiler above are superior from an environmental ordinary boiler is a boiler capable of utilizing coal, oil, gas, electricity can be transmitted to the chemical medium, the pressure vessel is converted to thermal energy or mechanical energy, and the heating powered has a wide range of applications, electric boilers for industrial production is the common type. Electric boiler fuel can be utilized to heat the water to a certain temperature, or for heating domestic hot water. Since the fuel gas and the like require 5 mw fired hot water boiler fuel and the fuel would have a certain amount of combustion exhaust gas, while improving the thermal efficiency of the boiler, the boiler to reduce pollution is an important issue. Condensing hot water boiler as a new hot water boiler, whether in the use of heat, or in the above exhaust emissions which are due to the performance of the conventional type boiler. Then condensing boiler and hot water boiler ordinary What is the difference? Analysis of the higher exhaust gas temperatures up ordinary boiler, generally up to 150 deg.] C, while the flue gas emissions, can take away a lot of heat from the heat utilization. Natural gas fuel used in the gas boiler containing a large amount of hydrogen element, after burning will produce large amounts of water vapor, the water vapor discharged with the flue gas while the outward, it is possible to take a lot of latent heat of vaporization. Condensing hot water boiler flue gas temperature below 40 ℃, not only the sensible heat of flue gas can be absorbed, but also at low temperature, the water gas generated by the combustion will be present in liquid form, which absorbs the latent heat in the flue gas. Up from the ordinary exhaust emission analysis using atmospheric gas hot water boiler combustion mode, which will result in excess air ratio in the mixed gas is too large, the flame temperature will produce thousands of degrees the boiler during operation, nitrogen at high temperature It will react with oxygen to generate nitrogen oxides, and nitrogen oxide emissions is an important cause of air pollution. Condensing boiler water premix burner, it will fuel and air mix before ignition combustion, which reduces the amount of excess air in the mixed gas, thereby reducing the generation of nitrogen oxides, the boiler improves environmental performance. In summary, condensing hot water boiler either from above or from the energy-saving and environmental protection above all better than ordinary boilers.

Basic requirements for thermal control of fuel gas boiler rooms 1. Main characteristics of fuel-fired Gas-fired Boiler the main difference between oil-fired gas-fired boiler and laminar combustion coal-fired boiler is that the combustion system is different, mainly in the fuel property and combustion mode. The combustion system of the fuel-fired gas-fired boiler has the following two characteristics: 1) if the combustion process is not controlled properly, a large number of combustible mixture can be formed in the furnace, and when the mixture is deflagration, it may cause the furnace explosion. Causing serious property losses and casualties. 2) the combustion mode of fuel-fired gas-fired boiler is space combustion, the combustion speed is faster and the load response is quick. 2. Self-control of oil-fired gas-fired boiler The control requirements are in accordance with the combustion system of the fuel-fired gas-fired boiler, and the basic requirements for the automatic control system of the oil-fired gas-fired boiler are as follows: (1) the reliable system is configured to prevent the explosion of the oil-fired gas-fired boiler. When designing the automatic control system of oil-fired gas-fired boiler, the reliability of the system must be given priority consideration, and if necessary, the design mode of setting the protection system and the detection control system separately can be adopted. In order to improve the reliability of the control and protection system, it is necessary to configure the necessary backup manual control and double indication of important parameters in the selection of the microcomputer control system. (2) strict procedures should be taken to control the start-up of oil-fired gas-fired boilers. Program control is adopted to strictly detect fuel system, air supply system and flame monitoring system in the process of starting and stopping, so as to avoid failure in the process of starting and stopping furnace. (3) timely alarm protection should be based on specific conditions. Select the following alarm and interlocking protection items related to combustion system: 1) alarm and interlocking protection of drum water level. 2) Boiler pressure overpressure (5 mw fired hot water boiler outlet temperature overheating) alarm and interlock protection. 3) flameout interlock protection. 4) low oil pressure interlock protection (oil fired boiler). 5) High oil temperature interlock protection (oil fired boiler). 6) low oil temperature interlock protection (oil fired boiler). 7) low Gas pressure interlock protection (gas boiler). 8) High gas pressure interlocking protection (gas boiler). 9) low wind pressure interlock protection. 10) burner flange limit to open correlation lock. 11) combustible gas leakage alarm. 12) earthquake interlocking protection. (4) when the rapid system responds to the abnormal flame extinguishment in the operation of the fuel-fired gas-fired boiler, the automatic control system is required to cut off the fuel supply rapidly and prevent the fuel from entering the furnace, so the automatic control system is required to respond quickly enough. (5) when the load of the fuel-fired gas boiler changes, the response speed of the fuel regulation is higher than that of the air supply system. Hurry up. When the load increases suddenly, the increase speed of fuel is greater than that of the corresponding air quantity, which results in insufficient combustion and black smoke, and when the load decreases suddenly, the reduction speed of fuel is fast, and the oxygen content of exhaust smoke is too high. For the small boiler controlled by bit, the increase or decrease of combustion should match the increase or decrease of air volume, otherwise, the ignition may be extinguished. Therefore, combustion and air control should be considered in the design of automatic control system. (6) for the automatic control system of gas-fired boiler, the explosion-proof instrument should be used in the field instrument.

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