Lahandi Baskoro's Blog, page 18

Hot blast stove operation specification

Precautions when stopping the hot blast stove: The hot water hot blast stove is a hot blast stove that produces hot water. It refers to the use of thermal energy released by fuel combustion or other thermal energy (such as electrical energy, solar energy, etc.) to heat water to a nominal temperature. Thermal device. So what do we need to pay attention to when using a water heater for intermittent heating? Let us have a look now!



  (1) When the hot blast stove stops heating, if it is a normal shutdown furnace fire, the blower should be stopped first, then the induced draft fan should be stopped, and the coal supply should be stopped, but the circulating water pump cannot stop. The pump water still evaporates due to the closing of the pump, and the pump still needs to continue. run. When the system water temperature drops below 50-60 °C, stop the circulating water pump. If the interval between intermittent heating is short, it is not necessary to stop the circulating water pump.

  (2) When starting the furnace again, the circulating water pump should be turned on first, so that the water in the system reaches the normal cycle, the induced draft fan and the blower are started, the grate and the coal charging system are started, and the coal seam combustion is gradually recovered. When the furnace is shut down for a long time, the coal seam is burned and then covered with a thick coal seam for pressure ignition.

Solve the corrosion problem of heat transfer oil boiler

The basic principle of leakage flux leakage magnetic flux detection is based on the high magnetic permeability of ferromagnetic materials. The magnetic permeability of the thermal grease furnace corrosion defects is much smaller than that of the thermal oil furnace. The oil furnace is magnetized under the action of an external magnetic field. When there is no defect in the heat transfer oil furnace, most of the magnetic lines pass through the steel pipe, and the magnetic lines of force are evenly distributed. When there is a defect inside the elbow, the magnetic lines of force are bent, and some magnetic lines of force leak out. Steel pipe surface. By detecting the leakage flux that escapes from the surface of the magnetized elbow, it is possible to discriminate whether or not the defect exists.

 

    Regardless of the heat transfer oil furnace, it is still pushing the heat transfer oil furnace. What should it do when it corrodes? How can I detect that it has been corroded? Elbows play an important role and function in certain applications. They need to be maintained and tested during the application process. After the elbows are corroded, the wall of the heat transfer oil furnace is generally thinned, and some pits appear. Pitting.

 

    The reason and method requirements for the internal corrosion of the heat transfer oil furnace are carried out according to the inevitable method and principle. The corrosion detection methods that can be widely used at home and abroad are the leakage flux method and the ultrasonic wave detection method. Ultrasonic ultrasonic testing is the use of ultrasonic pulse reflection principle to measure the thickness of the pipe wall after corrosion.

Green and environmentally friendly energy-saving boiler

Gas-fired steam boilers are widely used due to their wide application range and green energy-saving effects. Now, as long as it is possible to use steam, the locals will basically choose to use gas steam boilers. In the use of gas steam boilers, we have to pay attention to the local area. Here are three brief introductions.



The stepping of the device is very important. Since the time for purchasing the steam boiler is not a whole, the seller will transport many steam boiler components to the home and then have professional personnel to work as steam boilers. If the operation of the device is not done well, there will be many problems in the time of use, so it is very important to pay attention to the time when a screw is as large as a boiler at the time of installation.

 

Any machine in the process of use requires professional maintenance work, especially on the inside of the boiler and the various parts of the machine, the cleaning and dust removal operations must be done well, otherwise the primary impact is that the beautiful ones will be Affecting the normal operation of the machine, affecting the work together is likely to damage people’s health.

 

Regardless of how reliable the quality of the machine is, after a period of use, it is likely to lead to various shortcomings, and the use of the user’s fault and the placement of the problem. The same is true for steam boilers. Many people do not follow the correct method when they use them. This will cause various damages to the steam boiler. If defects occur, timely repairs can be made to ensure the normality of the steam boiler. operation.

Installation of hot water boiler pump unit

Water quality standards for hot water boilers and installation requirements and installation plans for pump installations

  Steam boilers are the main boilers for commercial and residential water use. However, from the point of view of boiler explosion accidents and boiler corrosion in recent years, many steam hot water boiler workers are not familiar with or are not familiar with the maintenance and use of Zhongchuang electromechanical boilers. Therefore, the electromechanical technicians of this paper first introduced the water quality standards of steam hot water boilers.



  The main requirements for steam boilers are as follows:

  1. When the rated evaporation of the boiler is greater than or equal to 6t / h, the boiler should be degassed. If the boiler with a rated evaporation of less than 6t / h, if local corrosion is found, the water supply should be deoxidized and the oxygen content of the boiler boiler feed water. Should be less than or equal to 0.05mg / L.

  2. If it is difficult to determine the dissolved solids, it can be indirectly controlled by measuring conductivity or chloride ion (C1-), but the relationship between dissolved solids and conductivity or the ratio of chloride to Cl- should be tested. According to the test. determine. This ratio relationship should be retested and corrected periodically.

  3. It is possible to control the relative alkalinity of the all-welded structure boiler.

  4. Steam hot water boilers and steam-water dual-purpose boilers with rated evaporation less than or equal to 2t / h and rated steam pressure of 1.0MPa or lower (if there is no special requirement for steam and water quality) can also be treated with pot. However, it is necessary to supervise the scaling, corrosion and water quality of steam hot water boilers, and do the ingredients, sewage and cleaning work.

  Pump unit installation requirements and installation plan

  Installation requirements

  The installation unit has technical strength before installation, carries out installation and construction organization design, and formulates the installation and construction network plan.

  The supervision engineer shall organize the design, manufacturing and construction units to conduct technical exchanges and coordination according to the specific conditions of the pumping station. After the installation and construction organization design approval, the supervision engineer will issue a start order, allowing the construction unit to enter the site for installation and construction.

  Construction units should be established, a single project leader should be established, and the scope of duties should be clearly defined and unified.

Feed water temperature of oil-fired boiler

Oil boiler rated pressure and feed water temperature knowledge

  Product rated pressure:

  The rated pressure refers to the steam pressure generated by the oil boiler. The steam temperatures produced at different pressures are different. The steam temperature of 1.0 Mpa is 184 ° C, while the steam temperature of 1.2 Mpa is 193 ° C. We need to choose the steam boiler that can reach your desired temperature according to your own use.

  Product feed water temperature:

  Some manufacturers often make a fuss about the feed water temperature to increase their rated evaporation. Some manufacturers intentionally increase the feed water temperature to 90 ° C or 100 ° C or higher when calculating the rated evaporation. However, in the actual use process, such high feed water temperature cannot be achieved, and there will be lower than the rated steam output.

  The fuel of the oil-fired boiler is fuel (such as diesel oil, engine oil, kerosene, etc.), and the fuel of the gas-fired boiler is gas (such as natural gas, city gas, biogas, etc.), and the equipment that depends on what fuel the boiler burns is called a burner, and the gas burner is configured. The boiler is called a gas boiler, and the boiler equipped with an oil burner is called an oil-fired boiler. The difference between an oil-fired boiler and a gas-fired boiler is the burner of which fuel is used.

  Oil-fired boilers can be divided into light oil boilers and heavy oil boilers according to different fuel oils. Light oil refers to diesel or kerosene; heavy oil refers to surplus heavy oil after crude oil is extracted from gasoline and diesel. Oil-fired boilers can be classified into fuel boiling water boilers, fuel hot water boilers, fuel heating boilers, fuel oil bath boilers and fuel steam boilers according to their purposes.

Precautions for using a steam boiler

Gas operation and preventive measures for gas boilers

  (1) Reduce the boiler load, thicken the coal seam according to the length of the downtime, the thickness generally does not exceed 200 mm, and the grate speed is appropriately accelerated.

  (2) Thicken the coal seam to a distance of about 1 mm from the slag plug, stop the rotation of the grate, stop the operation of the drum and the induced draft fan, close the baffle section of the regulating plate and the small baffle, and pass the natural Ventilation maintains coal. Weak combustion, sewage discharge, raise the boiler water level to an allowable high water level. If the fire burns off the coal sluice, the grate can be activated again, moving the coal back a distance.

  (3) If the boiler needs to resume operation, simply open the lead and blower, adjust the opening of the smoke, windshield and sectional wind chamber, and adjust the baffle. When the steam boiler is normally burning, adjust the thickness of the coal seam and start the grate recovery.

  Precautions for using a steam boiler

  (1) Check the power supply before starting the machine, whether the voltage and water source are abnormal. Close the drain valve to open the water supply valve and check if the pump is stuck. If the pump is stuck, remove the fan blades and turn the motor shaft to a flexible state to start.

  (2) When repairing the steam boiler or replacing the accessories, please cut off the power supply to avoid danger due to live working.

(3) The parts such as the electric control box and the pump motor should be controlled to prevent moisture and prevent the combustion, and the boiler should be kept clean.

  (4) According to the water quality requirements of the steam boiler, the water softener should be installed when using this equipment, because the use of the water softener will cause the boiler to scale, causing the pipe to burst and shorten the life of the boiler.

  (5) Please pay attention to sewage when using. It should be discharged at least once a day, and the pressure discharge should be between 0.1MPa and 0.15MPa to prevent blockage of the pipeline. The drain should be properly connected to prevent burns.

Fluidization quality of biomass boiler bed

Bed pressure is one of the important parameters for biomass boiler monitoring, and it is an important indicator for monitoring bed fluidization quality and material layer thickness.

  First, when the bed pressure is low, slagging and bed addition can be stopped.

  Second, when the bed pressure is high, the air rate can be increased to make the slag discharge easier. Open the damper of the large slag discharge pipe to increase the slagging amount and reduce the bed pressure to a normal value.

  Third, when the biomass boiler bed pressure is too high, the coal is reduced and the load is reduced to enhance the slagging.

  Fourth, if necessary, adjust the bed pressure by adjusting the coal particle size or changing the coal type.

  Fifth, under what conditions should biomass boilers closely monitor changes in temperature and pressure?

  Biomass boiler fittings The following conditions should pay attention to changes in steam temperature and steam pressure. When lifting the load, the fire extinguishing is unstable. When investing, the stopping is high, the coal type changes greatly, when the water is severe, when the load is heavy, loading, throwing, When using the coal feeder when stopping, the pressure of the feed water varies greatly and when the heated surface is soaked.

  With the increasing use of biomass boilers, the requirements for electric steam boilers in various industries are getting higher and higher. We are talking about the application of electric steam boilers in wood forming.

  Some wooden handicrafts need to be heated and bent to achieve the appearance of the ***, generally do not use open flame heating, but use high temperature steam heating, steam heating and hot bending to ensure the wood molding effect. The principle of heating and solidifying wood steam is actually very simple. It is mainly to soften the wood and deform it under the action of the mold to become the curved shape required for the design and to dry and shape. These wood products are exquisitely worn, with smooth lines and high surface quality and hardness. However, even if the same tree species have different bending properties in different parts of the same tree, the bending properties of wood of different tree species vary greatly.

  Wood crafts need to be bent and shaped during the production process and take time. Biomass boilers can adjust temperature and pressure according to wood processing requirements, simplifying process flow and reducing process time.

Boiler automatically adjusts temperature

The oil boiler automatically adjusts the temperature during operation to ensure its safe operation and avoid accidents caused by excessive temperature. But which systems in the oil boiler can play this important role? If you are not sure, you can check out the following.

  High temperature protection of oil-fired boiler: When the dry-burning maintenance device detects that the temperature is higher than 95 °C, it immediately blocks the heating tube power supply; Leakage maintenance: When the leakage current is detected to be greater than 15 mA, the power supply is immediately blocked to avoid electric shock. error occured. Code and warning notifications, after the problem, the controller can run normally from the beginning.

  Anti-freeze function of oil-fired boiler: When the controller is powered on, when the anti-freeze function is detected, when the temperature is lower than 3 °C, the heater starts to heat; when the temperature is detected to rise to 8 °C, the heater stops heating; The parameters of various settings have a memory function, and it is no longer necessary to set parameters from the beginning. At this point, after the steam boiler is installed, it can still be operated after the power is turned off. There is no need to check the time again after powering up.

  Oil boiler thermostat control: If the operating temperature is not set after power-on, the system will run at the default parameter of 50 °C; if the operating temperature is set, it will operate according to the setting. After power-on, the controller detects that the heating temperature is 8 °C lower than the set temperature.

  According to the set gear position, the heating pipe is turned on, and when the blocking temperature at which the heating temperature is equal to the set temperature is detected, the heating is stopped. The temperature gradually drops below 8 ° C, the heating tube is turned on again, and the cycle reaches a constant temperature.

Precautions when using steam boiler

Steam boilers have high efficiency and strong firepower. They are common production equipments. However, they themselves have certain risks. If they are used improperly, they will cause unnecessary trouble. Therefore, it is necessary to be familiar with the instructions for using the steam boiler. Then, the editors will summarize the usage specifications based on years of experience.

 

   When the enterprise receives the steam boiler, in order to use the boiler properly and the safety of the enterprise operators, it must strictly abide by the “Safe Production Law”, “Temporary Regulations for Safety Supervision of Boiler and Pressure Vessels” and “Safety Technical Supervision Regulations for Steam Boilers”. Provisions. This regulation applies to pressurized water-based fixed steam boilers, including coal-fired steam boilers, fuel-fired steam boilers, and gas-fired steam boilers. The factory using the boiler shall have the corresponding technical certificate, etc., and shall have the technical documents and construction quality certification materials for the installation of the boiler.

   Enterprises must attach great importance to boiler safety work. Appoint a full-time staff to be responsible for the management of boiler equipment, and do a good job in the use and management of boilers in accordance with the requirements of the regulations. According to the structure type, combustion mode and use requirements of the boiler, the operating procedures for ensuring the safe operation of the boiler and the safety management systems for explosion protection, fire prevention and anti-virus, as well as accident handling methods shall be formulated and strictly implemented. It is strictly forbidden to drink and get out of work after drinking.

   Boilers should be regularly inspected and maintained, and no unit can force the use of boilers with safety hazards. There should be drawings and construction technical solutions before repairs. The technical requirements for repair refer to the boiler technical standards and relevant technical regulations. After the repair is completed, technical data such as drawings, material quality certificates, and repair quality inspection certificates shall be stored in the boiler technical file of the factory.

   Non-boiler room operators are prohibited from entering the workplace. Outsiders must be approved or accompanied by the relevant leader to enter.

High quality natural gas boiler

Explain the main functions and advantages of natural gas boilers



   First of all, we should know that the primary role of natural gas boilers is to supply them with heat. Therefore, when purchasing natural gas boilers, you should want to see the raw materials of the outer packaging.

   When selecting the time, try to select the whole body is made of glass wool, because the glass wool is very good in heat preservation and the weight is very light.

   In this way, there is a lot of heat in the boiler, and the time is not lost. Once the heat in the boiler is quickly lost, it can not supply us with more heat energy, the work efficiency will drop rapidly, and more will be spoiled. fuel.

   The size and beauty of the natural gas boiler should be considered.

  To consider the size and the beautiful role, choose the white color plate packaging when purchasing the natural gas boiler, so that it is not only beautiful and generous, but the white color packaging color plate has a very good heat preservation effect.

  There is also the problem of the size of the natural gas boiler. It is very important to be placed in the position you need to place. If the volume of the purchase is too large or too small, it will cause unnecessary troubles.