Steam is a supporting heating equipment for enterprise production. The quality of steam directly affects the production volume and production cost of enterprises. Improving steam quality is an important basis for maintaining the safe and economical operation of thermal equipment. Fully study the components of the steam generator, from raw water treatment to daily operation and maintenance, and reasonably control the steam quality according to the standard steam quality of the steam generator to extend the service life of the steam generator.
Standard steam for steam generator
In addition to water vapor, boiler steam also contains impurities such as various salts, alkali and oxides. The main component is salt. Excessive impurities in the steam will cause salt deposition on the heating surface of the superheater, steam pipes and other places, affecting heat energy transfer. , or even local overheating. The standard steam of a steam boiler refers to the steam obtained by controlling the boiler pressure and flow rate strictly in accordance with the process indicators. In terms of steam types, there are saturated steam and superheated steam, and it can also be divided into three types: low pressure, medium pressure and high pressure steam.
Specific steam boiler standard steam can refer to the following:
Item Sodium Conductivity Silica Iron Copper
Unit ug /kg 25℃after hydrogen ion exchange (us/cm) ug /kg ug /kg ug /kg
Standard ≤10 ≤0.30 ≤20 ≤20 ≤5
Time: 1 time/2 h regularly
Several key points of Nobis steam generator to improve steam quality
Referring to the standard steam requirements of steam generators, Nobeth steam generators take multiple measures to improve steam quality. The steam generators they produce have sufficient output and high thermal efficiency. The standard steam quality of a steam generator is mainly reflected in the cleanliness, purity and thermal efficiency of the steam. The boiler steam composition can be controlled within a reasonable range through the following methods.
1. Steam generator sewage discharge is divided into regular sewage discharge and continuous sewage discharge. Regular sewage discharge can remove slag and sediment in the boiler water, and continuous sewage discharge can reduce the salt content of the boiler water.
2. Control the sewage discharge rate. Sewage discharge should generally follow the principle of “discharge frequently, discharge less frequently, and discharge evenly”. You can also use “dust cleaning agents” appropriately to clean the boiler.
3. Complete water treatment facilities and water quality testing can prevent boiler scaling to a large extent and guide sewage discharge correctly.
4. In order to reduce the water content of saturated steam, establish good steam-water separation conditions and use a complete steam-water separation device.
5. Follow technical standards and strictly control the normal water level of steam boilers to prevent steam from being entrained with water due to excessive water levels, resulting in deterioration of steam quality.
6. The operating load of the steam generator should comply with relevant regulations and be adjusted according to the rated evaporation capacity of the steam generator to avoid long-term overload operation of the boiler.
Nobeth Steam Generator Co., Ltd. is a well-known steam generator brand in the industry. Its products cover oil and gas steam generators, biomass pellet boilers, and electric heating steam generators. They have a wide range and reliable performance. The steam generators are of good quality.
Post time: Oct-25-2023
