Temperature measuring point sleeve mechanism for high temperature and high pressure steam pipes of a thermal power plant

摘要

Temperature measuring point sleeve mechanism for high-temperature and high-pressure steam pipes of a thermal power plant, characterized in that on the side wall of an alloy steel pipe (1), which is used as a high-temperature and high-pressure steam pipe of a thermal power plant, a columnar hole and a circular projection with an inclined surface ( 1-2), which are connected to each other, are formed and the inner wall of the columnar hole is provided with a columnar hole internal thread (1-1), a temperature measuring point sleeve (2) made of alloy steel, an upper column body with a large diameter, a middle Pillar body with a small diameter and a lower cone body (2-1), wherein the upper pillar body with a large diameter of the temperature measuring point sleeve (2) made of alloy steel is in the upper part of the columnar hole of the side wall of the alloy steel pipe (1) and by means of the fillet weld (4) the same steel is welded, which is matched to the material of the alloy steel pipe (1) and the temperature measuring point sleeve (2) made of alloy steel, the middle column body with a small diameter being located in the columnar hole in the side wall of the alloy steel pipe (1), the lower cone body ( 2-1) is located in the circular projection with inclined surface (1-2) of the side wall of the alloy steel pipe (1) and protrudes with its bottom into the alloy steel pipe (1) Hole internal thread (1-1) of the alloyed steel pipe (1) matched external thread is provided, the top of the temperature measuring point sleeve (2) made of alloy steel is provided with a connection hole in which a stainless steel transition sleeve (3), in which a temperature measuring element is screwed, is arranged.