Author: XINDA

Electric steam boilers are one of the common boiler models. Many companies are using it. Today we will understand whether the water quality will affect the electric steam boiler. Due to the different water quality, the impurities in the water will be different. In the following, it will cause the equipment to be damaged to a certain extent and cause a variety of faults. Therefore, in general, we have requirements for water quality. So let’s look at it briefly.

1. Heating tube scalar to break it.

Due to the existence of CA2+and MG2+in water, it has precipitated with CO32- during heating. When the electric steam boiler works intermittently, these precipitation gathered to the heating pipe. After a long time, the more accumulation, the more accumulated, the thicker and thicker, and the formation of scale. Going out, not only the power is reduced, but the phenomenon of slow heating and insufficient pressure will cause the heating pipe to burn and break it so that the boiler cannot work properly.

2. The water level probe is not sensitive, and sometimes the water level is not detected.

Because the existence of the scale of the scale may not be measured when the water level is detected, the water supply motor will continue to add water, and the heating cannot be started, so that the electric steam boiler steam export will flow out.

3. Furnace scaling leads to danger.

If the boiler often uses water containing impurities, it will not only appear the above three kinds of failure, but also bring a certain risk to the furnace body. The scale accumulates thicker and thicker on the inner wall of the furnace, reducing the space of the electric heating steam boiler furnace body. When it is heated to a certain pressure, the air outlet can not be discharged smoothly due to the blockage of the scale. The force of the furnace body increases, and the furnace body may burst for a long time.

The water source of the electric steam boiler should use less hardness of water, general enterprises use tap water or groundwater. Because both kinds of water have strong solubility, they contain various impurities to varying degrees. Water softener can be used to prevent the formation of scale, and enterprises suggest that they should adhere to pressure sewage every day.

1. Boiler water quality must meet the national standards, boiler should be equipped with water softener, do not use the water softener will cause boiler scaling, affect the efficiency and service life of the boiler, serious will cause accidents;

2. In order to ensure the normal operation of the burner, please use the fuel labeled by the equipment for the oil-fired boiler, and prohibit the use of inferior oil and fuel inconsistent with the label. Clean the oil tank, pipeline, filter and oil pump of the burner regularly according to the oil quality. Gas boiler to meet the requirements of natural gas or liquefied gas, gas pipelines should be installed pressure regulating valve (pressure reducing valve), pressure gauge. The required flow and pressure of the burner should be satisfied. To ensure the operation of boiler burner.

3. Before use of the boiler, it must ensure reliable grounding before use. Once a month, professionals are checked to the main road (power entry, contactor, circuit breaker, burning machine, etc.). 

4. Manual emission tests must be performed on the safety valve every week, and the water level meter of the boiler must be washed. The water level electricity must be cleaned on a regular basis.

5. After the boiler is used, at least pressure (less than 0.15MPa) is drained once; the sewage pipes should be properly connected to the safe place;

6. If the ambient temperature is below 0 ° C, please pay attention to the anti -freezing work of the water supply pipe road, and after the work is completed, put the remaining water of the pump pump head to avoid frozen pump heads.

7. When the boiler is stopped, it is recommended to turn off the power, oil road (gas road) and water supply valve in time.

When the steam boiler is running, we need to check the outside of the steam boiler, so what do we need to check?

1. Whether the safety attachment is complete, sensitive, and reliable, whether the installation of security attachments meets the requirements of relevant regulations.

2. If necessary, you can test the pressure gauge to perform safety valve exhaust tests.

3. Whether the auxiliary equipment (fan, pump) runs normally.

4. Whether the self -control equipment, signal system and various instruments are sensitive and reliable.

5. Whether all kinds of doors and holes are tight, or have no leakage and corrosion.

6. The steam bag wall that can be observed in the combustion room is normal, whether the water -cooled wall is normal, whether there is deformation or other abnormalities.

7. Whether the combustion is stable and whether the chimney is hacking.

8. Whether the boiler wall, structure, platform, escalator, etc. are intact: Whether the water treatment equipment is running normally.

9. Whether the facilities of the boiler room meet the requirements of relevant regulations and whether the management is normal.

10. The welds of the area can be seen in the boiler, and whether the cracks are cracks (seams).

Atmospheric pressure hot water boilers are usually set up at the top of an air outlet, internal pressure and external pressure balance, high safety factor, rarely explosion or other sudden accidents, usually used in residential areas or office buildings, to provide domestic water and heating.

Although atmospheric pressure hot water boilers are less dangerous, it does not mean that the staff can neglect their duties. When operating it, it is necessary to check the boiler regularly, observe the water level, avoid low water level, dry burning and other situations, in order to avoid dangerous accidents, or reduce the service life of the boiler. Xinda Boiler summarizes the following 15 matters for boiler safety.

1. Strictly implement the rules and regulations, earnestly study the professional knowledge related to the boiler, to ensure the safe and stable operation of the boiler.

2. When the boiler starts working, the user unit and individual shall not change the boiler structure, valve and piping system without authorization.

3. Before taking over the shift, inspect all kinds of equipment according to regulations, including water tank water level (hot water tank, expansion water tank), energy consumption (boiler gas meter), thermometer (hot water tank temperature, boiler heat medium water temperature), etc., check the operation record, check the equipment, and understand the boiler operation situation in detail.

4. The replacement personnel shall arrive at the boiler room in advance according to the regulations, shifts and time, and understand the operation of the boiler.

5. The shift replacement should make preparations in advance, carry out careful and comprehensive inspection and investigation, and maintain the normal operation of the boiler.

6. The personnel on shift should introduce the equipment operation, water quality and boiler blowdown to the personnel on shift. Without the handover procedures, the personnel on shift should not leave the post.

7. Keep the boiler body clean, no dirt, no leakage, no rust and corrosion, and fill in the equipment maintenance records carefully and in detail.

8 Boiler room is one of the key departments of the use of boiler units, in addition to the boiler room staff, relevant leaders and security, security, department management personnel, other personnel without permission is not allowed to enter.

9. It is prohibited to store inflammable and explosive other sundry materials in the boiler room. The oil drums and oil POTS that need to be filled with a small amount of lubricating oil and cleaning oil should be stored in the designated place, and pay attention to check whether there are explosives in the combustion.

10. Boiler room should be equipped with fire extinguishing equipment, careful management, do not move or use for other purposes.

11. Boiler room floor, walls, doors and Windows are always kept clean and hygienic.

12. Leaders in charge shall check operation records and environmental sanitation regularly and irregularly to find problems and solve them in time.

13. Go to work on time according to the prescribed time, make a good record of shift handover, and do not leave the work at will or ask for leave.

14. It is strictly prohibited to drink alcohol, doze off, gamble and fight in the boiler room once found serious treatment.

15. Timely report of equipment failure and accident (timely report to the person on duty at night), write a written accident report in a down-to-earth manner. After the investigation is clear and responsibilities are clarified, the negligence caused by accident losses shall be investigated and dealt with.

For customers in different industries, according to the needs of their own industry to choose the correct type of steam boiler is very important, which is related to the cost of the boiler later input and use. Xinda boiler summed up some steam boiler selection methods for your reference.

1. Product quality

In the choice of steam boiler we first look at the quality of the product, because the steam boiler belongs to the pressure vessel, with working pressure, so its normal operation is particularly important, we buy to see whether the product information is complete, product quality is good, so as to ensure the long-term operation of the boiler.

2. Product brand

For the boiler, a good product brand has a certain economic strength, workmanship quality, perfect after-sales service. When we buy steam boilers, we should choose big brand manufacturers, especially the boiler manufacturers of grade A, so that the brand of the product has the strength.

3. Technical parameters

When we buy steam boilers, we need to understand the various parameters of the boiler, such as the thermal efficiency of the boiler, fuel consumption, boiler size, boiler weight, combustion mode and so on. Different manufacturers produce different boiler products. We need to compare and find out the excellent steam boiler products.

4. After-sales service

Steam boilers are used in factories. Due to long-term operation, they need to be maintained and maintained. At this time, after-sales service is particularly important.

Therefore, it is suggested that when choosing boiler equipment, we must carefully choose a good boiler manufacturer. For example, Xinda Boiler, focusing on boilers for more than 50 years, has rich experience in boiler production, and the boiler price is relatively low. Compared with other boilers of similar manufacturers, the boiler has higher efficiency and larger heating area. Boiler cost control is lower. Therefore, Xinda boiler is a reliable boiler manufacturer

The enterprise should adjust the operation state of the gas boiler according to its actual needs. The boiler does not run all the year round, and it will be stopped for a period of time and then started again. If the gas boiler has been shut down for a long time, before starting again, we need to do the following things to ensure that the gas boiler can maintain a stable working state for a long time.

The first is to clean the boiler, because the boiler has not been used for a long time, the inside and outside of the boiler will accumulate a lot of dust, we need to clean it, in order to clearly find the actual situation of the boiler.

After the boiler is cleaned, it must be dried with hot air, but it can not be heated at the same time for the furnace wall and other accessories, which may have adverse consequences. The correct way is to place an electric heater at the bottom of the boiler for heating.

When the boiler begins to use, it is necessary to place the desiccant on the anti-corrosion tray, so that the tray can maintain a good drying effect, which contributes to its normal use, so as to promote the thorough play of the efficacy of the gas boiler.

In addition to the long-term suspension of the use of gas boilers need to pay attention to the above operation, daily maintenance is also very important, must pay attention to every few months to check a desiccant, add in time; And check the use of boiler accessories regularly, if there is damage, it should be repaired or replaced in time.

To achieve the above four tasks, we can ensure that the gas boiler restarts to the previous good performance, provides the required heat source for enterprises to resume work, and make it worthy of full play.

Now more and more factories choose to use steam generators, so, when buying steam generators, what details need to pay attention to?

1. Thermal efficiency of boiler:

Some customers choose low -efficiency steam generators for cheap prices. In the short term, it’s really cheap. But over a period of time, it will be found that the fuel consumption of inefficient steam generators will be very high, and the gas production per unit of fuel will be very low. Over the long term, it is still a loss.

2. Rated evaporation capacity:
The selection of suitable boilers should be based on their own needs to choose, if the demand for steam is small, and bought a steam generator with high evaporation rating, that is overqualified, but if the steam needs to be large, but bought small rated evaporation equipment, it is not appropriate.

3. Rated steam pressure:
Each factory has its own gas standards, so when buying a steam generator, it is also necessary to pay attention to the rated steam pressure.

4. Rated steam temperature:
In the same way as the rated steam pressure, the rated steam temperature of the steam generator is selected according to the needs of the gas equipment. How high the steam temperature of the gas equipment is needed, then the steam generator with the rated steam temperature should be selected.

When the hotel chooses the hot water boiler, it is necessary to judge the height of the floor to measure whether the layout of the boiler pipeline is convenient. In addition, it is also necessary to calculate the heating area and the number of rooms, so as to choose the suitable type of hot water boiler. In the actual selection, we should pay attention to the following issues:

1, hot water boiler is divided into atmospheric pressure and pressure hot water boiler. If you choose pressure hot water boiler, then you need special equipment supervision and inspection institute (institute) for external inspection every year, every two years for internal inspection.

2. Pay attention to the water quality requirements of gas-fired hot water boilers. If the water quality of your boiler does not meet the normal standards, you can pass the test and simple treatment, to ensure that the water quality is up to standard; Of course, you can also look for boiler manufacturers for professional treatment.

What is a fire tube boiler?

In a fire tube boiler, high-temperature flue gas produced by the burner flows through a threaded pipe surrounded by water to heat a mixture of water, steam or soda outside the wall of the pipe to produce steam or hot water.

What is a water tube boiler?
The operation mode of water tube boiler and fire tube boiler is just the opposite, water in the boiler tube circulation flow, and the pipe is surrounded by high temperature flue gas, high temperature flue gas to the water pipe who heat, produce steam or hot water.

The main difference between the two types of boilers is:

1. Water tube boiler pressure range is wide, can break the pressure limit, can meet the steam supply requirements of more than 2.5MPa. Fire tube boilers are limited by material wall thickness and pressure and are used for pressure below 2.5MPa.

2. Fire tube boiler is shell boiler. Limited by the equipment and tooling of various boiler manufacturers, it is difficult to make fire tube boiler which is too large, usually below 35t/h.Water tube structure boiler can be realized into large scale boiler, and the boiler above 35t/h usually adopts the water-tube structure.

3. Fire tube boiler has a compact structure, under the same output, the shape and equipment weight are lower than fire tube boiler. Water tube boiler because of the larger volume, there is more space for the superheater arrangement, so the water tube boiler occupies a relatively large area.

For hot water boiler, a good running state is very important, which is directly related to the safety and efficiency of the boiler operation. So, we will talk about it today. What are the matters that need special attention during the operation of hot water boilers?

1. Wear the designated work clothes before work, check the boiler water supply, drainage, air supply pipe accessories, safety valve, pressure gauge, water level gauge is flexible, confirm the safety before starting to work.

2. The boiler water level can not exceed two thirds of the water level, low water level is not less than one third. Usually, the water level is maintained at 1/2 or higher.

3. During the working of the hot water boiler, it is necessary to check each component and observe the pressure and water level. If there is overpressure or water shortage, the boiler must stop running, put the ash in front, and inject a small amount of cold water, but not a large amount of cold water to avoid accidents. During the operation, the fireman is not allowed to leave his post without permission.

4. Conventional piezoelectric hot water boiler sewage, each shift, before the sewage should be properly adjusted water level, slightly higher 2/3, and then sewage.

5. Water gauge is washed once per shift. When flushing, according to the demarcation procedure, first plug the water valve, open the drain valve, flush the steam valve. At this point, pay attention to whether the steam is blocked. Then plug the steam valve, and watch for water blockage

6. When the hot water boiler is in normal operation, the steam pressure shall not exceed the specified working pressure, and the safety valve shall be checked once a week.

The above is the need for attention during the boiler operation, to help you better understand the hot water boiler, away from dangerous accidents.