How to Choose A "Real" Cheap Boiler System

May 15, 2020

As a boiler engineer for 10 years, I found that many business owners have only a vague understanding of steam boilers, but they do not have a specific concept-they do not know how to choose a "real" cheap boiler system. In fact, whether the boiler is cheap or not, we cannot simply consider the price of the boiler at the time of purchase, there are three other aspects:

1. How to find "real" cheap boilers in uneven prices?

2. What kind of boilers have lower annual operating costs?

3. Why do you buy so-called "high-quality" boilers still can stop working due to various problems?

I gave detailed answers to these questions.

How do I find a really cheap boiler?

I have a user who bought a gas-fired steam boiler with ＄30000 seven years ago. The average price of this type of boiler is ＄45000 dollars. But it only operates three years because the boiler smoke pipe burst out. The specific reason is that the pipe is too thin. In the process of disassembling the boiler, I found that the overall material of the boiler is 2 mm thinner than that of the normal boiler.

Under normal circumstances, we can't find out the material and structure of the boiler. There are two ways to distinguish the quality of the boiler. One is the boiler certification standard. One is the production qualification of the boiler manufacturer. After comparing ASME and ISO9001 standards, you will find that Chinese standards are basically the same as ASME standards, and Chinese standard boilers are much cheaper than ASME standard boilers. The service life of the Chinese standard boiler is longer than that of ASME, and its stability is much higher.
As for the value of the boiler itself, it is only related to the raw materials and production process, which can’t be distinguished from the appearance of the product but can only be understood by visiting the factory. When visiting the factory, remember not only to see whether the factory is good-looking but also to see the attitude of workers and the details of product production. For example, the situation of the boiler weld, the X-ray inspection sheet of the boiler.
Sometimes we will give up buying boilers because they are not boiler manufacturers. In fact, it depends on the cooperation mechanism of boiler manufacturers between boiler agents. Under the protection, agents and boiler manufacturers' prices are the same. At the same time, agents have their own unique features. For example, they can provide you with corresponding localized services. This is the case with EPCB Agents. EPCB is also recruiting partners around the world. If you have this intention, you can also contact us.

How to choose the right boiler parameters?

Before buying the boiler, your engineer will definitely help you to calculate how large power the boiler will be used in your factory. Some engineers will even recommend some other parameters for you, such as the fuel, the kind of auxiliary machine is equipped. Such engineers generally know the boiler very well. You can think, which kind of engineers know more about boilers? Yes, of course, the engineers who sell boilers.

According to my experience for many years, engineers will generally increase the boiler load by about 50% in the process of calculating the boiler power for you, so as to meet the unexpected needs of your factory when receiving a large number of orders. During the operation of the boiler, It should be noted that the most boiler-efficient is when the fuel combustion power meets the boiler load. For coal-fired boiler, it is necessary to adjust the air volume of the F.D.Fan and I.D.Fan, so that the air pressure in the boiler is in negative pressure, and the air volume just meets the air volume required for full combustion of fuel. The fuel feeding speed of the grate needs to be controlled under proper conditions. This is the most fuel-efficient situation. The commissioning personnel of the EPCB Boiler will pay great attention to this point in the process of commissioning. In the process of boiler operation, use the least fuel to make the boiler run at full load.
The price of high-end brand accessories is relatively high, which will not only occupy a large purchase cost but also occupy a large share in the cost of boiler operation. Conscientious boiler manufacturers will equip you with durable Boiler Auxiliaries and accessories instead of high-end brands, which can not only reduce your purchase cost but also reduce your operation cost. Wearing parts need to be replaced once a year or even half a year. When you buy a boiler, the boiler supplier will provide you with one or more sets of vulnerable parts. EPCB will be sold vulnerable parts to you at cost. As for other boiler suppliers, I can't guarantee.
The boiler is also gradually moving towards full-automatic development. Although many people are still required to be on duty, many parameters will not need to be observed manually as before, avoiding many human errors leading to a boiler shutdown. Multiple protection systems, highly automatic electric control systems, can make your boiler a more stable operation. This is a very powerful guarantee for the stable operation of your factory.

Key factors for stable boiler operation

The stable operation of the boiler can make your production more stable. The boiler will not be the same as the production line of your product. Generally, one boiler can supply the work of multiple production lines of the whole factory. If one production equipment of one production line has problems, the other production lines can continue to work. If the boiler has problems, it is the shutdown maintenance faced by the whole factory. I believe this is the last thing you want to see.

In fact, this question is a little related to the first one, but there are also some differences. Because the quality of the boiler is closely related to this problem. The structure of the boiler, the material of the boiler, the production technology, and the process of the boiler all affect the stability of the boiler in the operation process. Buying a boiler brand that has a huge boiler factory can eliminate the boiler quality problem to the maximum extent.
The installation of the boiler must be done by a professional installation team because the boiler is special equipment. Any problem with the process in the installation may cause a very big hidden danger in the operation of the boiler. If the boiler supplier can provide on-site installation guidance, this problem will be avoided. EPCB Boiler installation engineer is experienced and can provide you with professional installation guidance.
Whether the boiler operator can operate the boiler better or not is another factor for the stable operation of the boiler. I'm going to tell you a real case. A user bought an EPCB coal-fired boiler, because of a misoperation, it caused positive pressure combustion of the boiler, which caused the flame in the furnace to shoot out of the boiler, causing very serious damage to the boiler, but fortunately, it didn't cause personal injury. It was only after the incident that the air volume of the I.D.Fan was changed to less than that of the F.D.Fan.(The air volume of the F.D.Fan should be less than the air volume of the I.D.Fan.) Although every time we carry out boiler installation and boiler commissioning, we will train the stoker, but there will still be such and such problems. It is very necessary to train the operator regularly or answer questions. EPCB Boiler will hold regular training courses for line supervisors and Boiler operator. You can contact us if you need.