Boiler installation is a long-term project. In order to improve work efficiency and speed up the completion of boiler installation tasks, We should make some relevant preparations in advance before the boiler arrives on site.If that is the case,the boiler can be put into production quickly and safely.

So what preparations need to be made before and during the installation of the boiler? EPCB has compiled a simple boiler installation guide to help you understand all this. It covers some things you need to pay attention to before installation, what is needed for installation, and what will happen afterwards.

Preparation Work before Boiler Installation

When the boiler arrives at the user site, in order to ensure rapid operation, the following preparations must be made before installation:

1. Determine the installation company and verify the qualification certificate.

The boiler installation unit must have a boiler installation qualification certificate that meets the installation scope issued by the superior authority, and is responsible for contacting the local boiler supervision agency, filling in the installation notice, and accepting the installation supervision inspection by the local boiler inspection and testing unit.

The boiler user unit should have a dedicated person responsible for the boiler installation. When installing the boiler, a boiler must be involved, and there should be plumbers, fitters, cranes, cold workers, electric welders and auxiliary workers.

2. Foundation preparation:

Construction according to the foundation plan, if it is a coal-fired boiler, need to make a slag pit foundation and the anchor bolt holes of the dust collector and the induced draft fan must be reserved in advance.

3. Determine the installation location:

The selection of the boiler installation site needs to consider the following aspects:

⑴The installation site is as close as possible to the heat-use site to reduce the heat dissipation loss of the pipeline.

⑵Convenient water supply and drainage.

⑶Convenient storage and transportation of fuel and ash.

⑷The boiler is unobstructed during installation and transportation.

⑸The layout of the boiler room should be reasonable.

There is sufficient light, good ventilation, and no water on the ground. In order to ensure convenient operation and maintenance of the boiler, there is a space of 4-5 meters in front of the furnace (from the edge of the coal hopper), a space of 2.5-3 meters behind the furnace, and a space on the left side (including blower) ) Not less than 1-2 meters, and the free space on the right side is not less than 3 meters.

4. Installation equipment acceptance:

⑴After the boiler arrives at the site, check the parts according to the factory packing list, check the integrity of the equipment according to the boiler installation drawing, and check whether the large boiler is damaged or deformed during transportation.

⑵When the large boiler is unloaded, 8-10 pipes can be placed under the iron plates on both sides of the base and pulled with a wire rope to make the large boiler move slowly on the rolling pipe. The wire rope should be hooked on the pull ring of the base. Do not damage any part of the boiler's large parts.

⑶If large boilers need to be lifted, the lifting equipment capacity should not be less than 50 tons. The four lugs of the furnace can be used for lifting, or jacks can be used to slowly jack up under the iron plates on both sides of the base. Do not arbitrarily place them in other positions Hoist.

Precautions when Installing Boiler

1. Installation quality requirements:

⑴. Boiler installation should meet the design requirements and meet the requirements of "Code for Construction and Acceptance of Boiler Installation Engineering".

⑵. The thermal insulation of the boiler and its auxiliary equipment and thermal pipelines should meet the requirements.

2. Other specific installation requirements

(1) Boiler body installation:

Draw the vertical and horizontal centerline and horizontal positioning line of the furnace body according to the drawings. After the foundation and the furnace body are lined, move the furnace body to the foundation and place it in place. Check the centerline and contour line and the vertical and horizontal centerline drawn on the foundation. The contour line is consistent, and then check the contact between the boiler bottom plate and the foundation. If there is a gap, use a pad to level it. After the correction, the calculation deviation of the liquid level shall not exceed 2mm, and the vertical deviation of the furnace body shall not exceed 1/1000. After the alignment meets the specifications , Weld the shim and the boiler support together.

(2) Flue and Chimney Installation:

①When installing the chimney and flue, asbestos rope must be inserted between the flanges to ensure its tightness and no leakage of smoke and wind, and the verticality of the chimney should be checked by the method of warp and weft or hoisting lines. The total length deviation is less than 10mm, and the total length is less than 10mm. The deviation of the piece's verticality is less than or equal to 1/1000, and the anchoring point is firm and reliable according to the design requirements;

②The flue should be equipped with expansion and explosion-proof devices.

③The chimney must be equipped with a lightning rod, and be connected to the grounding grid and welded firmly, and the grounding resistance should not be greater than 4Ω.

Precautions after Boiler Installation

1.After the boiler is installed, it should be reported to the local special equipment inspection department. It can be used only after the relevant departments have passed the inspection and approved it, and obtained the boiler use certificate.

2. Arrange for the furnace workers to learn, let them understand all the conditions of the boiler, understand the installation process, to ensure that the boiler will deal with emergency when common failures occur;

3. Check whether there is any problem with the pipeline, etc., check each auxiliary machine, whether the instrument valves are connected, etc., all equipment accessories need to be checked

4. The boiler assembled on site should be run for 48 hours normally and continuously with load, and a record of the trial run should be made.

Conclusion:

Most reputable boiler manufacturers will provide you with service guarantees. At EPCB, we make a commitment for our service: to provide one-stop service for boiler installation, from project formation to customer site testing, full tracking, long-term technical consultants are provided after the boiler is operating normally, and problems are solved in time.

If you are worried about the safety of the new boiler installation, or think that your engineer is not doing a good job, please contact them immediately. They are obliged to correct any problems they cause.

EPCB, your private boiler system expert!

Further Reading:

Boiler Safety Guide | Industrial Boilers'Common Accidents and Solutions

Boiler Technical Guide|General Guidance on Industrial Boiler's Operation

Coal-fired Boiler Intensified Combustion Technology Application