Noise reduction steam temperature reduction device and method

Abstract

The invention discloses a noise reduction steam temperature reduction device and a method. The method comprises the steps that a user inputs a target parameter of steam at an outlet of a steam temperature reduction device and a maximum working noise value of the steam temperature reduction device allowed by the user by using a user input end; required desuperheating water flow is calculated by a computer of a control system according to reading number of an instrument in a data acquisition system; a desuperheating water main regulating valve and a branch regulating valve of a first-stage desuperheating water nozzle are opened through the control system; noise of a desuperheater is measured through a noise monitoring system, and if the noise is higher than the user requirement, the controlsystem opens a second-stage desuperheating water branch regulating valve and regulates the branch regulating valve of the first-stage desuperheating water nozzle at the same time, so that the sprayingspeeds of desuperheating water at all stages of desuperheating water nozzles are equal to reduce the spraying speed of the desuperheating water, and therefore the purpose of reducing noise is achieved; and if the user requirement is still not met, the opened desuperheating water branch regulating valves are continuously regulated and a next-stage desuperheating water branch regulating valve is opened according to the method until the user requirement is met.

Description

technical field [0001] The invention relates to a steam desuperheating device, in particular to a steam desuperheating device for noise reduction and a noise reduction method thereof. Background technique [0002] The working principle of the steam desuperheating device is to spray desuperheating water into the high-temperature superheated steam, so that the high-temperature superheated steam and desuperheating water are mixed in the main steam channel and exchange heat. The desuperheated water is vaporized in the main steam channel to reduce the temperature of the superheated steam, and finally obtain saturated steam with higher thermal efficiency to meet the needs of downstream users. [0003] During the working process of the steam desuperheating device, the desuperheating water is sprayed from the nozzle at a high speed, which will make a huge noise. At the same time, the desuperheating water sprayed into the main steam channel at a high speed will also strongly disturb ...

AI Technical Summary

Problems solved by technology

Existing steam desuperheating devices usually only have one-stage desuperheating water nozzles. Once the required desuperheating water flow rate is determined, the injection speed of desuperheating water cannot be changed. On the premise of ensuring the desuperheating water flow rate, reducing the desuperheating water injection speed can effectively reduce Noise, which can be achieved by configuring multi-stage desuperheating water nozzles

Images