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cheap used waste oil 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, cheap used waste 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.

Cade Shopping Mall is located in central Shanghai Hongkou District, Shanghai Daily larger flow of people in the region. The introduction of Shanghai air pollutant emission standards, boiler flue gas emissions of nitrogen oxide emissions to less than 80 mg / m, Shopping Mall a coal-fired boilers have been used for many years, NOx emissions far super to this request, the urgent need to replace more environmentally friendly low nitrogen emission boilers. Other units through the use of fast Boiler introduction and understanding, determined and fast boiler to achieve cooperation, party fast to their specific needs to recommend one condensing gas cheap used waste hot water boiler of a 4.2MW for heating needs of the shopping center.

What safety matters should be noticed in the operation of industrial boilers?

Industrial boiler is a kind of equipment which must be used by many manufacturing enterprises. It can provide sufficient thermal energy for the production of enterprises so as to ensure that the production can be carried out in an orderly manner. However, because the industrial boiler is dangerous when it is used, the workers who operate it must pay attention to the following items in their daily work in order to better prevent the occurrence of safety accidents. So what safety matters should be noticed in the operation of industrial boilers?

1. Industrial boilers should check the inlet and outlet valves of their gas meters and the main valves in front of the furnace before using them, and close them when the pipes are replaced. When opening the furnace door, we should pay attention to check the situation in the furnace, especially pay attention to the phenomenon of gas leakage, if the leakage is found, it cannot be ignited, but it should be checked and repaired in time to ensure the safety before ignition.

2, pay attention to check the flue of industrial boiler, can't have water or not and keep the flue open all the time. At the same time, no combustible and explosive products such as diesel oil, firecrackers and so on should be placed around the boiler, and safe passageways of sufficient area should be set aside.

3. Start the blower before igniting the industrial boiler and open the air valve on each burner. When igniting, we must pay attention to fire and so on. We must not put the cart before the horse in order to prevent explosion. Also note that the burner should be ignited and adjusted in sequence from top to bottom and from inside to outside.

4. When using industrial boilers, if the blower stops abruptly due to power outages and other reasons, all gas and air valves on the burner should be closed immediately and the furnace doors should be opened if necessary to prevent accidents.

5, the operating room should be equipped with a gas alarm, if found gas leakage of the county should close the indoor gas valve, and then find out the leak point and timely repair, in the course of its attention must not use open fire to detect leakage.

Gas boiler heating surface elements and hydraulic machine hydraulic system temperature Xiao Bian told you about the gas boiler heating surface elements and hydraulic machine hydraulic system was increased 1: heat impact: low heat, low temperature combustion theory. To ensure that the design parameters and capacity of the boiler, fuel consumption and more, the furnace outlet increases eye pattern, a large amount of smoke, and the temperature and pressure so that the heat transfer gas velocity in each of the convection heating surface are increased, resulting in convection heating surface endothermic the amount of increase. Thus, each of the heating surface area of ​​the boiler will be changed accordingly. 2: volatile Impact: coal fuel gas-fired boiler low volatile and is not easy to catch fire and burn, furnace volume heat intensity should get smaller, the larger the volume of the furnace. Flame length, the furnace should be higher. In order to ensure stable ignition of the fuel, the water wall surface of the burner arrangement Refractory laying tape, reduce heat absorption area waterwall combustor to maintain the high temperature, hot air and powder feeding hot air temperature higher, so relatively arranged much air preheater heating surface. In order to ensure the fuel burn, requires a larger excess air ratio, the combustion temperature in the furnace and reduce the amount of flue gas increases, it should be arranged to increase the convection heating surface. 3: Effect of Moisture: Water large, combustion temperature in the furnace is reduced, reducing the radiant heat absorption in the furnace, the flue gas increases the amount of heat absorption increases convection heating surface. Thus, convection heating surface required multi worth area. Meanwhile, moisture, high temperature hot air requirement, while the arrangement requires more air preheater heating surface. 4: Ash Impact: ash content, will aggravate the wear convection heating surface, in the design of the convection heating surface, should be used in low-speed cigarette or other friction reducing measures. Low ash melting point, should be used in a low heat furnace cross-sectional strength, thermal strength burner zone wall and the furnace volume heat intensity, to ensure that the back of the furnace and the convection heating surface not slagging. For low fuel boiler ash melting point, it should be employed in slagging combustion. For ash, it may also be employed multiple flue arrangement. 5: Multi sulfur, ash can cause corrosion and plugging of the low temperature heating surface, also cause high-temperature corrosion. Therefore, the design should pay attention to the selection and arrangement of the parameters of the heating surface, and take appropriate measures. As heating temperature, and contamination of the hydraulic system, but also an integrated form of the fault, the primary measured by measuring the oil temperature and a small amount of hydraulic components. Oil cooling during rotation around the start of operation to thermally. Temperature too high will produce the following faults: 1, temperature rise, the viscosity will decrease oil leakage increases, the overall system efficiency and volumetric efficiency of the pump is significantly reduced. Since the viscosity of the oil is reduced, thin film and other moving parts of the spool are cut and broken, the frictional resistance increases, resulting in increased wear, heat generation system, lead to higher temperature. 2, high oil temperature, mechanical thermal deformation, so that the gap between both the hydraulic components of different coefficients of thermal expansion becomes smaller moving member stuck, causing operation failure, they affect the precision of hydraulic equipment, resulting in variable quality parts processing difference.

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