Temperature reduction and pressure reduction stable heat supply device and temperature reduction and pressure reduction method

Abstract

The invention relates to a temperature reduction and pressure reduction stable heat supply device comprising a controller, a conveying pipe, a steam pipe and a condensation device. A temperature reduction device, an adjustable pressure reduction device, a pressure stabilizing device, a temperature and pressure sensor and a safety valve are sequentially arranged on the conveying pipe from left to right. The outlet end of the steam pipe is inserted in the left end of the conveying pipe. The condensation device communicates with the outlet end of the safety valve. The temperature and pressure sensor is electrically connected with the controller. According to the temperature reduction and pressure reduction stable heat supply device, temperature is reduced through the temperature reduction device, pressure is reduced through the adjustable pressure reduction device, pressure is stabilized through the pressure stabilizing device, the temperature reduction and pressure reduction effect on high-temperature and high-pressure steam is good, and the steam output pressure is stable.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery in thermal power plants, in particular to a stable heat supply device for temperature reduction and pressure reduction and a temperature reduction and pressure reduction method. Background technique [0002] When a thermal power plant uses high-temperature and high-pressure steam to spin a generator to generate electricity, the steam after spinning has not been effectively utilized, resulting in a large waste of steam waste heat. Utilization of steam waste heat can save energy and reduce production costs; And the pressure is relatively high, and the user cannot directly use it without temperature and pressure reduction; the steam waste heat utilization system can be understood from a thermal power plant steam turbine waste heat utilization system disclosed in the utility model of Chinese patent application number 201821020806.7; the traditional waste heat utilization system has High-te...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of the current waste heat utilization system, such as poor decompression and decompression effects on high-temperature and high-pressure steam, and unstable steam output pressure, and provide a system with better desuperheating and decompression effects on high-temperature and high-pressure steam, and steam output Stable heat supply device and method for reducing temperature and pressure with relatively stable pressure

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