Manufacturing and using method of temperature thermocouple for power station and products produced thereby

Abstract

Said invention refers to the manufacture of temperature thermocouple and use method and products thereof, which is characteristic of the high temperature sealant for cold end of thermocouple adopts TS747 high temperature sealant and the seal method of external and internal cylinder adopts screw buckle seal method. Said invented products can be used in the thermocouple in three hundred thousand KW, six hundred thousand KW and one million KW set.

Description

1. Technical field: [0001] The invention relates to a thermocouple, and in particular discloses a temperature-measuring thermocouple for a power station and a method for using the same, which are used in matching temperature-measuring thermocouples and temperature-measuring instruments in power plants and their supporting factories. 2. Background technology: [0002] The rapid development of my country's industry has led to the rapid development of the power industry. In order to speed up the power to meet the urgent needs of the industry, my country has introduced a large number of large generator sets (sets) such as 300,000 kilowatts, 600,000 kilowatts, and 1 million kilowatts from developed countries. A thermocouple is also included. The types, models, specifications, structures, and sizes of thermocouple elements used in units imported from different countries are not the same, which brings great difficulties and inconveniences to the maintenance and replacement of equipm...

AI Technical Summary

Problems solved by technology

The types, models, specifications, structures, and sizes of thermocouple components imported from different countries are not the same, which brings great difficulties and inconveniences to the maintenance and replacement of equipment in various factories.

However, it is difficult to solve the urgent need to buy from abroad. At the same time, these imported thermocouple components also have some quality problems of their own. According to the technical requirements, the end sealing material can reach above 400°C, but in fact it can only reach 200°C; 2. The sealing problem of the high-pressure and high-temperature gas used for temperature measurement in the cylinder of the unit requires that the service life of the thermocouple element in the cylinder body of the steam turbine is as long as almost At the point of coexistence with the cylinder, if the thermocouple is damaged and replaced, the generator must be shut down for at least 10 to 15 days. If it is a 1 million kw / h unit, then the power generation will be reduced by 1 million kw / h x 15 (days) × 24 hours = 360 million kilowatts, plus labor and material costs, the loss will be too great, and this economic account must be taken seriously

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