best oil fired vacuum boiler

best oil fired vacuum boiler

How to guarantee steam quality of steam best fired vacuum boiler

Steam boilers are much more widely used than hot water boilers. Hot water boilers are mainly used for heating and providing hot water supply, while steam boilers cover all industries such as industrial and power generation. What are the requirements for boiler boilers for boiler boilers? Undoubtedly safe, stable, efficient, long service life, cost savings, etc., however, these requirements are indirectly or directly related to steam quality. The quality of steam is critical because it affects the stability, reliability and economy of the system, as well as product quality, production power and energy consumption. If the steam boiler user does not pay attention to this, it will definitely lead to a series of follow-up problems for the boiler.

1) Cleanliness: There are rust and carbonate deposits in the steam pipeline, and there may be slag and sealant fragments remaining in the equipment. These impurities may cause jamming and damage to the valves and equipment, and also increase the wear of the pipeline. The way to improve cleanliness is to install a pipe filter, and the filter should be horizontal.

2) Dryness: Incorrect water treatment of boiler hydration, unreasonable boiler level control, and short-term high peak load and other factors will cause the boiler to co-exit the boiler, so that the boiler outlet carries boiler water. When steam is moving in the pipeline, heat dissipation from the pipeline condenses a portion of the steam, adding condensate from the pipeline. The chemical substances and other impurities carried in the condensed water will accumulate on the surface of the heat exchange equipment, affecting the power of the heat exchange equipment, and the accumulated impurities will be fouled on the metal surface of the equipment, resulting in uneven heating of the metal surface and shortened life. In addition, the presence of moisture in the vapor reduces the transpiration of the steam, adding steam consumption; the moisture in the steam will increase the thickness of the water film measured by the heat of the heat transfer, and the rated heat transfer resistance occurs. The addition of a steam separator is a useful way to improve steam dryness, and an efficient steam separator can increase steam dryness to 98%.

3) Purity: There is air in the steam system because the steam that is generated by the boiler still inevitably contains a small amount of air, and there are also air when the pipes and equipment are started. When the system and equipment are shut down, the air is taken in due to the internal vacuum. The air has a very low thermal conductivity and is a poor conductor for heating. The inclusion of air in the steam system will reduce the production capacity of the steam equipment and will also increase the corrosion of pipes, valves and equipment. The most useful way to eliminate non-condensable gases such as air in a steam system and thereby improve the purity of the steam is to install an automatic air venting device in the system.

4) Pressure/temperature stability: In order to ensure process heating requirements, the steam pressure at the steam point should reach the demand value. Together, the steam pressure should not be too high, otherwise steam consumption will be added.

National response to control air pollution and maintain policies favorable ecological environment; effective control of thermal power, steel and other key industries, the total amount of atmospheric emissions of major pollutants, Ningxia implementation of thermal power, steel and other industries, especially air emission limits for pollutants in the metropolitan area of ​​Yinchuan.

In particular emission limits refers to higher standards than the national emission of pollutants, more stringent emission requirements; implementation of special emission limits, implementation of key industries mentioned standard transformation is one important way to reduce pollutant emissions. Yinchuan City metropolitan area including Yinchuan, Shizuishan City, Wuzhong City Litong District, Qingtongxia City Administrative Region and Ning Dong Energy and Chemical Base (core area). Perform particularly air pollutants emission limits in all of these areas of thermal power, iron and steel, cement, petrochemical, non-ferrous metals, chemical industry, coal-fired boilers and sulfur dioxide, nitrogen oxides, particulate matter.

Since the execution time is tentatively scheduled for January 1, 2019, for the present, China has not yet specified air pollutants emission limits in particular industry, to be the relevant standards or modified, re-implemented.

For enterprises, especially not achieve emission limits of air pollutants, the government has formulated a series of remediation measures, the relevant enterprises to effectively assume responsibility for the theme of pollution control, ensure the completion of the task within the stipulated time. For within the specified time still can not meet the requirements of enterprise and equipment, the relevant departments will be severely punished according to law.

Affect the operation of the vacuum best fired vacuum boiler vacuum boiler of the four factors mainly used for civilian heating, mainly used in residential, home, hotels and other densely populated places, but there are always some of the equipment has been hampered its effectiveness, not so warm, the following tell you about the factors that affect the operation of the device: 1, boiler and valves, meters there is no leak, there are currently includes inlet valve and instrument can guarantee no leakage occurs within 3 years. 2, the load can not have the mutation, changing the boiler load is normal for the boiler, the boiler can meet the general load regulation thirty percent to ninety-nine percent. 3, vacuum pump, three-way solenoid valve is working properly, since the vacuum pump, three-way solenoid valve is not run frequently, imported and seizure operation also prone to failure. 4, control whether or part failure, boiler controls and negative pressure, pressure controller can also occur in the operation of the failure is inevitable, such as the failure rate is even higher domestic controller. 5, the control section airtightness of the boiler should check whether the normal vacuum pump, the three-way solenoid valve is normal, check load changes, if the check is normal and negative pressure controller settings. 6, after everything is normal vacuum degree of recovery boilers still function properly, or to check all aspects of the maintenance shutdown. The actual operation of the vacuum boiler breakdown maintenance rate is higher than the pressurized steam boiler, a steam boiler control requirements than. Vacuum is the main indicators of the stability of the vacuum boiler, it is generally not hot equipment, it is ineffective this is a problem, if we find a problem we should immediately go to repair, to spend the winter cold to make themselves warm as soon as possible device.

What are the advantages of a hot water best fired vacuum boiler? its advantage is that there will never be any danger of explosion, but there can be no monitoring and inspection, and there is no need to consider the problem of pressure relief in the boiler room, to save steel and simplify the process, to reuse the waste boiler, to cancel the supplementary pump, and to protect the power outage well. Durable, saving users all kinds of investment. The operation of the hot water boiler is very simple, seal the fire, dust removal, add water, ignition this gives a step, when sealing the fire is to clear the ash first, remove the dust clean, then fill the coal hopper to close the coal door. The economic and environmental protection of vacuum hot water boiler is in line with the needs of social development. Therefore, vacuum hot water boiler is also popular with people, and its usage is not right or wrong. Often large, vacuum hot water boiler itself advantages determine its development space is huge. The instrument of the vacuum hot water boiler can automatically display the temperature and pressure, and the vacuum hot water boiler can be added coal twice in 24 hours, so that the vacuum hot water boiler can maintain constant temperature all day long. This will be more convenient to use. Hot water boiler system, each hot water boiler according to their main regulator proportional to the size of the change in the load. The fuel regulation subsystem of hot water boiler adopts a feed-forward-feedback cascade control system similar to the steam turbine power-frequency electro-hydraulic control system. Primary regulator adoption Proportional regulator, corresponding to frequency difference amplifier in steam turbine power-frequency electro-hydraulic regulating system, whose proportional band is equivalent to the unequal rate of steam turbine, whose size represents the capacity of hot water boiler with load, the larger the proportional band. The capacity of hot water boiler with load is stronger; The introduction of fuel feedback signal corresponds to the introduction of steam turbine first-stage pressure signal in steam turbine power-frequency electro-hydraulic regulating system, and its function is to quickly eliminate the spontaneous disturbance of fuel quantity of hot water boiler. Hot water boiler power consumption problem, we use the temperature to control the start and stop of the pump, in the low temperature as far as possible not to let the pump work, when the set temperature after the start of the water Pump. It is suggested that the boiler water should be treated by magnetization or softening in order not only to save energy, but also to prolong the service life of the boiler.

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