What are the aspects that need to be paid attention to when maintaining a biomass boiler?

In heavy industrial production, biomass boilers are used to generate electricity and power. In order to reduce the failure of the boiler and prolong its service life, we need to carry out routine maintenance on it. In the process of biomass boiler maintenance, we need to pay attention to the following five aspects.

First of all, the pressure gauge, water level gauge and various valves and sewage devices installed in the biomass boiler should be inspected to observe whether they are normal and meet the requirements, and at the same time, it is necessary to check whether the other valve switches are normal. Secondly, check whether the automatic control device of the boiler is abnormal, including the flame detector, the detection of water level and water temperature, the alarm device and various interlock devices, and the display control system to meet the requirements. The water supply system is an important part of the biomass boiler, and we should check the temperature of the feed water, the water level of the water storage tank, and the water treatment equipment in time to observe whether the system condition meets the requirements of production.

In addition, the fuel combustion system of the biomass boiler, including the reserve of fuel, transmission lines, combustion equipment, ignition equipment, fuel shut-off device, oil pump, etc., should also be carefully checked, which has a great effect on improving the full combustion rate of fuel. The last thing to maintain is the ventilation system, including the condition of the blower, the opening of the regulating door and gate panel, the ventilation duct and other components.

Literature data from: Nanjing Greenville Energy Technology.

Pay attention to maintenance and safety.

1.It is strictly forbidden to install the atmospheric boiler as a pressure boiler. It is strictly forbidden to use boilers with incomplete safety accessories such as water level gauge, safety valve and pressure gauge.

2.During installation, an endoscope should be used to check whether the welding connection of the biomass boiler is consistent with the drawing design.

3.After installation, the boiler is inspected. The boiler is regularly inspected once a year, and the boiler that has not been inspected for safety is not allowed to be used.

The safety accessories of the boiler are regularly inspected once a year, and the pressure gauge is verified once every six months, and the safety accessories that have not been regularly inspected shall not be used.

4.After passing the inspection, the boiler is tested for operation.

Biomass boiler is a type of boiler, that is, the boiler with biomass energy as fuel is called biomass boiler, which is divided into biomass steam boiler, biomass hot water boiler, biomass hot blast stove, biomass heat transfer oil furnace, vertical biomass boiler, horizontal biomass boiler, etc.

What are the commonly used tools for biomass boilers!

The tools commonly used in biomass boilers include chisels, oil grooves, chisels and arc chisels. Among them, the flat chisel is used for chiseling the plane, removing the burr, removing the groove of the pipe, removing the welding slag and chiseling the thin iron plate; Chisels are used for grooving, iron and brittle steels; The oil groove chisel is used for the groove of the bearing oil groove and other concave grooving;

Arc chisel is used for metal gaskets and parts with arcs for chiseling valves. The bow frame of the adjustable saw bow is divided into two sections, the front section can be retracted in the middle of the rear section, so that several length saw blades can be installed.

The bow frame of a stationary saw bow is monolithic and can only be fitted with a saw blade of one length. When installing the saw blade, pay attention to the direction of the saw blade, not reverse, the other is to lay bricks or refractory concrete slabs on the heating pipe on the top of the furnace. It is characterized by simple installation and high temperature resistance. In the boiler ignition and combustion parts, there is also a design of the furnace arch.

Maintenance method of Nanjing Greenville biomass boiler.

In order to make the biomass boiler can operate safely and economically for a long time, it is necessary to strengthen the maintenance of the biomass boiler in daily use.

Eliminate the phenomenon of running, running, dripping and leaking in time.

The detached insulation layer should be repaired in time.

The biomass boiler is inspected internally and externally once a year.

Nanjing Greenwell Energy Technology.

What kind of boiler? Biomass straw pellet fuel boiler is a new type of boiler suitable for biomass pellet fuel, which integrates advanced design concepts, optimized process parameters and special technical treatment. During the use of the product, the operation is stable, economical and environmentally friendly.

Tested by Beijing Environmental Protection Testing Center and Beijing Zhongyan Environmental Protection Testing Center, the thermal efficiency of the boiler is more than 83%, and the boiler smoke, SO2, NOX and Ringelmann blackness all meet the requirements of Beijing Standard GB13271-2007 "Boiler Air Pollutant Emission Standard Regulations".

The boiler body adopts a new type of shell boiler structure, which is composed of longitudinal boiler barrel, left and right lower headers, furnace water wall, flue water wall, threaded smoke pipe and descending pipe, etc.; The left and right walls of the combustion chamber are arranged with water wall tubes, which extend upward from the water wall of the furnace to form the convection pipes of the left and right wing flues. The pot tube is equipped with a threaded smoke pipe bundle, the left and right sides of the middle and lower part are installed with the return water distribution pipe, 4 groups of return water injection devices are arranged at the entrance of the descending pipe, and the lower part of the rear of the pot is equipped with a regular sewage discharge device.

The combustion equipment adopts a chain grate, and the sprocket shaft is driven by the gearbox; Unilateral air intake, four independent air chambers are arranged under the grate, and a wind regulating mechanism is arranged on one side of the air chamber, and the air enters the independent air chamber through the side air duct by the blower. The furnace is provided with front and rear arches, and two flame folding walls are arranged between the front and rear arches, both of which are made of refractory concrete. A dust-reducing flower wall is set at the flue gas outlet of the furnace above the rear arch, which is made of refractory bricks.

The furnace walls are made of refractory bricks, aluminum silicate fiber and other insulation materials; The front and rear furnace walls are wrapped in flat steel plate welding.

The biomass fuel self-feeding hopper enters the furnace through the baffle, burns in stages on the chain grate, and after burning, the ash falls into the slag removal hopper and is discharged by the scraper slag remover. The feeding hopper is equipped with a shut-off fan, which can not only convey and control the amount of fuel transported, but also play the role of isolating the flame and fuel and preventing backfire.

The main combustion characteristics of biomass straw pellet fuel boiler are phased air distribution and regional combustion, which ensures the environmental protection and high efficiency of the boiler.

Beijing Shengchang Green Energy Technology ****.

For the modern heavy industry, biomass boiler is its important production equipment. Therefore, after the end of production, the boiler needs to be carefully maintained to ensure that it can operate normally the next time it is used.

At present, the maintenance requirements for biomass boilers are: ash removal and residue removal and descaling should be carried out immediately after the furnace is stopped, and the inspection time should be proposed to the maintenance department in time, and strive for early inspection, early maintenance and early maintenance. When the boiler is out of service, it should be maintained immediately, because it can use the water resources in the system and improve the operation facilities, saving manpower and material resources.

In addition, good water quality and perfect operation system can enable the maintenance measures to be implemented, so as to achieve the purpose of small dosage, uniform agent, wide coverage, no dead ends, and easy monitoring and adjustment. In order to ensure the maintenance effect, do not release water, prevent the entry of air, and add an appropriate amount of chemicals to improve the anti-corrosion ability of the metal. In addition, maintenance inspections should be strengthened, especially during the rainy season.

Literature from: Nanjing Greenville Energy Technology.