Industrial boilers can provide a large amount of power output for users in the broad industrial field, but it will also be accompanied by a certain degree of danger. Therefore, when operating and using industrial boilers, certain safety regulations must be followed. In particular, the boiler operator who operates the boiler must have certain professional skills.

The heating value of a 10-ton boiler is equivalent to 6 million kcal. Therefore, if the calorific value of natural gas is calculated according to 8600 calories, then the amount of natural gas consumed per hour is about 700 cubic meters. Different boilers have different auxiliary machines.

In boiler equipment, if the different furnace types are different, then the ratio of fly ash to slag is different, so the answer to question 1 is different. For example, for a pulverized coal furnace, the proportion of fly ash is 90% and the proportion of slag is 10%. The boiler supervisor and boiler water tester must be certified to work, and must not violate this requirement.

In the waste heat boiler, if it is medium-pressure steam, the pressure is 0.93MPa and the temperature is 280°C; if it is low-pressure steam, the pressure is 0.7MPa and the temperature is 260°C. If the temperature of the condensate is too high, it needs to be cooled and treated before entering the boiler.

Electric hot water boilers are now relatively hot boiler equipment, especially at atmospheric pressure, which is safer to use and has no environmental problems. Today, Zhengzhou Fangkuai Boiler Factory will come to briefly talk about what type of boiler equipment the electric hot water boiler is.

Electric hot water boiler, also known as electric heating boiler, electric heating boiler, electric heating boiler, electric bath boiler, and electric bath boiler; this type of boiler uses electric heating technology and control system to produce hot water in order to meet heating or heating demand.

There are several methods for descaling an electric hot water boiler.

If the use of caustic soda, that is, sodium hydroxide, then heating and pressurizing, and to maintain a certain period of time before the waste water can be discharged.

Moreover, on different specifications of electric hot water boilers, the time required for descaling is different, for small boilers it is 24 hours, for large boilers it is more than 36 hours.

The circulating pump in a pressurized hot water boiler generally uses the control cabinet on the boiler, without the need to use a separate control cabinet unless there are special requirements. The 6-ton hot water boiler has a heat production of 1.8 million Kcal/H. However, this is a theoretical value, in actual work, there may be deviations. Therefore, everyone should pay attention.

A steam boiler is a device that outputs high-temperature steam. Regarding the relevant parameters of steam output, users should pay attention to two aspects: one is the rated evaporation, but it will leave a certain margin in the design of the boiler, generally It is 10% to 15%, or 20%. The second is the upper limit of the output, which has a certain relationship with the rated evaporation, but it is not equivalent.

What are the specific requirements for water level protection devices on steam boilers?

On steam boilers, the specific requirements for its water level protection device are: for steam boilers with a rated evaporation capacity of not less than 2t/h, high and low water level alarm devices and low water level interlock protection devices shall be provided. The steam boiler with a rated evaporation capacity of not less than 6t/h, in addition to these two, should also have a steam overpressure alarm and interlock protection device, which are indispensable.

Is there a stipulated requirement for the exhaust temperature of a steam boiler with a rated evaporation capacity of not less than 1t/h? In addition, what is the price of auxiliary equipment for this boiler? For a steam boiler with a rated evaporation capacity of not less than 1t/h, the exhaust temperature of the boiler must not exceed 170°C, and this must be strictly implemented. The basis is TSG G0002-2010.

The auxiliary equipment of the steam boiler is generally in the range of dozens to hundreds of thousands in terms of price. Specifically, it depends on the use requirements, specifications, and the number of uses. Moreover, its configuration is also divided into high-end and low-end.

Enterprises that need to use boilers are more cautious when facing boiler selection, because this relates to the company's operational investment costs for boilers and later safety use issues. Song Gong, a technical engineer of Zhengzhou Fangkuai Boiler Factory, will come to talk about what factors should be considered when selecting a boiler.

Aspect 1: How much steam is needed by the enterprise itself, or the heat supply of hot water.

Aspect 2: Different boilers, their important and related parameters, and analysis of their selection relationship.

What is meant by low temperature, low pressure, medium temperature, medium pressure, and high temperature and high pressure in the generator set? In addition, what do you mean by adding medicine in the pot?

The low temperature, low pressure, medium temperature, medium pressure, and high temperature and high pressure in the generator set can be either boiler parameters or steam turbine inlet parameters. Therefore, it can have two meanings. As for the medicinal treatment in the pot, specifically, it is used as supplementary treatment for boiler make-up water, condensate water and generated return water treatment, and does not refer to other treatments.

For boilers, are they different in terms of service life and specifications?

Boilers have different sizes, so their service life is also different. Specifically, it is: small boilers, which are generally used for 6 to 10 years; for large boilers, it is not necessarily, depending on the specific use, because it is determined by it. Therefore, on this question, the answer is yes. That is, the service life of boilers with different specifications is different.

For enterprise units, the boiler may not need to be used 365 days a year. When the construction period is stopped, the boiler is no longer needed, so the boiler needs to be shut down. What materials should be prepared when the boiler is shut down? To which organs should you report to? Specifically, listen to the boiler experts of Zhengzhou Fangkui Boiler Company to explain to you.

What report should be submitted to the Boiler Inspection Office when the boiler is shut down?

If the boiler is shut down, it is necessary to submit a "Boiler Deactivation Report" to the Boiler Inspection Office. Its main purpose is to be used as an annual inspection type of the boiler, which can be used to prove that it is not in use. Inspection fees, and safety valve verification fees, etc.

In addition, the specific content of the "Boiler Decommissioning Report" mainly includes the company name, boiler number, boiler use registration number, boiler model, number and use, etc. In addition, the reasons for stopping the furnace and the safety protection measures when the boiler is stopped are also indispensable.

The inspection process before the hot water boiler starts, specifically speaking, there are the following steps.

Step one: Check whether the safety accessories, thermal instruments and electrical instruments in the boiler are complete and intact, and can work normally.

Step 2: Check the connections, welds and pipelines of the hot water boiler for water leakage and other phenomena.

Step 3: Check whether the sewage line, inlet line and return line are unblocked.

Step 4: Fill the expansion and replenishment tank with water, and check the line voltage to see if its voltage is 380V. If there is a dial, whether it is controlled within 5%.

Step 5: Open the manual valve, as well as the water supply and return valves. After that, start the pump and burner, and check whether they are operating normally.

Step 6: Perform water filling operation on the boiler heating system in order to exhaust the air in the system without any residue. What are the specific inspection procedures in the operation of gas hot water boilers?

Gas hot water boiler is a type of hot water boiler. The inspection process in operation mainly includes the following points:

Process 1: Check the outlet and return water temperature of the gas hot water boiler, whether it is within the normal range. And, whether the pressure of the boiler is normal and stable, and whether its combustion condition is good.

Process 2: Check the make-up water pump and backup water pump, mainly to see whether it is running normally. And, to check the boiler water quality, whether it meets the specified standards in specific parameters. In addition, sewage should be carried out every day to remove scale in the boiler.

Hot water boilers are indispensable thermal energy equipment in the field of heating and heating. There are also many matters that require special attention regarding the operation of hot water boilers. Zhengzhou Fangkuai Boiler Factory will come to answer them one by one.

What are the specific requirements for the feed water hardness of hot water boilers?

The requirements for the hardness of feed water for boilers such as hot water boilers are less than 0.6 mmol/liter. However, in order to avoid the problem of boiler fouling, which affects the boiler efficiency, it is carried out with reference to the steam boiler feed water standard to achieve the above purpose, because the feed water hardness of the steam boiler is required to be less than 0.03mmol/L, relative Strictly speaking.

The model of electric hot water boiler is WDR-95/70, so how should it be understood?

The electric hot water boiler is one of the hot water boilers, which uses electric energy to burn the boiler, and then, converts energy to achieve the purpose of use. And its model indicates that it is WDR-95/70, then its correct understanding is:

The preceding letter is the abbreviation of the model of the electric hot water boiler, and the following number 95/70 refers to the boiler's outlet and return water temperature in degrees Celsius.

Does the burner in the hot water boiler have a specific model? Can it be used universally?

There are many types of burners on hot water boilers, such as light oil burners, alcohol oil burners, heavy oil burners, natural gas burners, and biological particle burners. Therefore, there are different types and specifications of hot water boilers, which are not universal.

Most gas boilers are under certain pressure, so there will be certain safety risks during use. Regarding the operating pressure of gas boilers, what are the matters that users need to pay attention to? Let Zhengzhou Fangkuai boiler tell you the answer.

In gas-fired boilers, if natural gas is used as the fuel, the system pressure of the boiler is in the range of 10-20kPa, which can avoid various problems during the use of the gas-fired boiler.

Is the amount of natural gas required per hour for a 2-ton gas-fired boiler different from that of a different boiler manufacturer? The amount of natural gas required per hour for a 2 ton gas-fired boiler can be said to be different for different boiler manufacturers. It cannot be exactly the same. Therefore, the answer to this question is yes. However, it has an approximate range of 150-160 cubic meters per hour.

Is the 25-ton gas boiler a uniform price?

There are many specific types of 25-ton gas boilers, such as gas hot water boilers and gas steam boilers. Therefore, there are different prices for different specific types. Therefore, it cannot be a uniform price. Moreover, for the purchaser, it is necessary to consult their manufacturer and inform the heating plan, etc. before the manufacturer can give a specific price, that is, to perform the product quotation.

Although it is now in June, if you want to purchase a hot water boiler for heating and heating in winter, you must seize the time now, because after the hot water boiler is purchased, boiler manufacturing, transportation, installation and commissioning will be carried out. Run and many subsequent operations. Considering that many users are exposed to hot water boilers for the first time or are purchasing heating boilers for the first time, they are not very familiar with some hot water boiler brands on the market and the comprehensive strength ranking of manufacturers. Zhengzhou Fangkuai boiler manufacturers come to do free science for everyone today .

First, we must first understand the boiler type of hot water boiler. The hot water boiler is a thermal energy device that transfers the heat energy released after the fuel is burned to the boiler and reheats the hot water to meet the needs of people. If it is divided according to fuel, hot water boilers are mainly composed of fuel oil type, coal type, biomass type, electric energy type, etc. Generally speaking, the use of fuel gas is relatively more because of the high fuel calorific value It is more convenient to call, and more importantly, energy saving and environmental protection; or some areas with relatively cheap electricity prices choose to use electrical energy, so that it will be more environmentally friendly, and there will be basically no troubles of polluting.

It may be too early to use a hot water boiler for heating, but now it is not far from the heating season. Our users must prepare in advance, whether it is a new purchase of hot water boiler, or restarting the hot water boiler, or learning Better methods for operating hot water boilers must all be started.

There are many types of hot water boilers. If divided according to pressure, there are normal pressure type, pressure type and vacuum negative pressure type. Generally speaking, pressure hot water boilers will bring certain safety risks, normal pressure type and vacuum Negative pressure hot water boilers are basically free of dangerous accidents such as explosions. However, the boiler manufacturers have taken sufficient precautions for the safe operation of the boiler. Take Fangkui boiler manufacturers, for example, at least more than 10 monitoring probes will be installed on a hot water boiler to monitor the parameters of the boiler in real time. Once the abnormal situation is found, the furnace will be stopped immediately and an alarm will be issued to remind the user to deal with it in time.

Whether it is a steam boiler or a hot water boiler, the boiler operation must be carried out in advance before it is used for the first time or before it is restarted after the furnace is stopped, mainly to remove the rust, oil stains and the protective film on the metal surface of the boiler, so as to make the boiler more good job. Fangkui boiler manufacturers remind you that in the process of boiler boiling, operators, operation steps and boilers must be prepared.

When cooking the boiler, firstly choose the chemical liquid. For the steam boiler, use caustic soda or soda ash to achieve the purpose of the boiler. However, the operator should wear these protective articles such as hats and gloves when performing the boiler operation to ensure their own safety and the safety of the operation.

Corrosion has always been a major factor in damaging the service life of boilers, and is also a problem that boiler manufacturers have been trying to solve. But in the final analysis, it is still necessary to start from the aspects of boiler manufacturing and later operation to avoid the bad situation of corrosion. In the boiler type of hot water boiler, high and low temperature corrosion has always been a difficult problem to overcome, and it is also a headache for users. Today, Zhengzhou Fangkuai Boiler Factory will lead you to find out how to avoid high and low temperature corrosion of hot water boilers.

High and low temperature corrosion of hot water boilers refers to low temperature corrosion and high temperature corrosion.

The low temperature corrosion is formed when the heated surface of the boiler tail is corroded by sulfuric acid, and then sulfur dioxide is generated. At the same time, under the action of the catalyst, sulfur trioxide is further generated. If it meets water vapor in the air, sulfuric acid vapor will be generated. When sulfuric acid vapor condenses on the heated surface of the preheater, there will be low temperature corrosion.