Steam hot water boiler water quality standards and pump unit installation requirements

Steam boiler is the main boiler for commercial water and community water, but from the boiler explosion accidents in recent years as well as the degree of boiler corrosion, many steam hot water boiler workers are still not very familiar or not very familiar with CCTC E&M boiler maintenance and use. Therefore, in this paper, CCTC electromechanical technicians first introduce steam hot water boiler

The water quality standard of the water used in the furnace.

The main requirements of steam boiler are as follows:

1, when the boiler rated evaporation greater than or equal to 6t / h should be deoxygenated, rated evaporation less than 6t / h of the boiler such as found in local corrosion, the feed water should be deoxygenation measures for the steam turbine for steam boiler feed water oxygen content should be less than or equal to 0.05mg / L.

2, such as the determination of dissolved solids have difficulties, can be used to determine the conductivity or chloride ions (C1-) method to indirectly control, but dissolved solids and conductivity or chloride ions (Cl-) ratio relationship should be based on the test to determine. And should be periodically retested and amended this ratio relationship.

3, all-welded structure of the boiler relative alkalinity can not be controlled.

4, rated evaporation less than or equal to 2t / h, and rated steam pressure less than or equal to 1.0 MPa steam hot water boilers and steam boilers (such as steam, water quality without special requirements) can also be used in the pot dosing process. However, the steam hot water boiler must be scaling, corrosion and water quality to strengthen the supervision, and seriously do a good job of dosing, sewage

and cleaning work.

Pump unit installation requirements and installation program

1. Installation requirements

Installation unit must be installed before the full technical force, the installation of construction organization design and development of installation construction network plan.

The supervising engineer should organize the design, manufacture and construction units to make technical briefing and coordinate with each other according to the specific situation of the pumping station. Installation of construction organization design approved by the audit, issued by the superintendent engineer to start the order, the construction unit can enter the installation construction.

Construction organization should be set up, the establishment of a single project manager, a clear scope of responsibility, unified command.

Installers should study the technical information, familiar with the drawings, master procedures, specifications and related technical regulations, master the installation steps, methods and requirements, so that the installation quality to meet the design requirements.

2. Installation plan

Installation plan is the main part of the construction work. Contents include: installation process, installation schedule.

Installation plan should be clear construction sequence and construction progress, listing the entire project in the single project, branch project and its volume, divided into the main, secondary, first and second, and then reasonably arranged for the duration of the work, the composition of the staff and the main tasks of each stage of construction, so that the construction progress of the project to be able to take into account both before and after, and connect with each other.