What anti-wear measures are often taken to solve the wear problem of heating surface?

The details are as follows: (1) Choose a reasonable separator form, layout position and suitable achievable separation efficiency. (2) Reasonable selection of flue gas velocity in each section. (3) Install deflector at the corner of flue to improve the non-uniformity of fly ash concentration field. (4) As far as the arrangement structure of heating surface tube bundles is concerned, in-line arrangement should be adopted as far as possible, and staggered arrangement should be less adopted. (5) Upward flue gas flow structure can be adopted. (6) Membrane economizer heating surface structure can be adopted. (7) False tubes can be added before tube bundle. (8) Thick-walled or wear-resistant covers, wear-resistant tiles and wear-resistant sleeves should be used for local wear-resistant places. (9) Pipe wall surface treatment technologies such as spraying and nitriding are adopted. (10) The periphery of each inspection hole in the furnace is not prominent, and there is an anti-wear coating; The top of refractory and wear-resistant materials in the dense phase area of the furnace adopts a special shape to prevent the water wall tube from being worn.

It is necessary to adhere to the principle of putting prevention first, comprehensively and scientifically grasp the status of "four tubes" of boilers, analyze the causes of "four tubes" explosion and leakage, summarize the laws of "four tubes" explosion and leakage, and formulate preventive measures in time according to the inspection, inspection and life evaluation of heating surfaces, and implement the transformation plan. 2, establish and improve the responsibility system, play a subjective role, eliminate congenital and late defects, improve the level of operation, maintenance and management, reduce and reduce the number of boiler "four tubes" leakage. In order to prevent the leakage of boiler tubes, it is necessary to adhere to the whole process management of power generation equipment, strengthen the quality awareness of each link, and ensure the quality of boiler operation, maintenance, overhaul and technical transformation. 3. Make full use of major and minor repairs to carry out macro inspection on the four tubes, including high-temperature corrosion, wear, bulging, bulging, welding state, etc., among which cutting inspection and chemical analysis are carried out on the parts with concentrated heat load.