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Superheated steam thermoreduction device

A technology of superheated steam and desuperheated water, applied in the control of superheated temperature, steam superheating, steam generation, etc., can solve the problem of superheated steam temperature exceeding the range, the regulation performance of desuperheating water cannot meet the change, and the mixing uniformity of desuperheating water and superheated steam is not equal. very good and so on

Pending Publication Date: 2019-11-08
VEOLIA (HARBIN) THERMAL POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mixing uniformity of desuperheating water and superheated steam is not very good when the desuperheater with this structure is working, and the temperature of superheated steam is difficult to control, especially when the amount of superheated steam changes, the adjustment performance of desuperheating water cannot meet the changing needs. Cause superheated steam temperature out of range

Method used

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  • Superheated steam thermoreduction device
  • Superheated steam thermoreduction device

Examples

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Embodiment Construction

[0014] Such as figure 1 As shown, a superheated steam desuperheating device consists of a cylinder body 1, a connecting flange 2, a cooling section sleeve 3, a connecting ring 4, a supporting rib 5, a booster head 6, and a booster cylinder 7 , desuperheating water jacket pipe 8, desuperheating water pipe 9 and desuperheating water nozzle 10, such as figure 2 As shown, the connecting flange 2 is welded to both ends of the cylinder body 1, one end of the cooling section sleeve 3 is welded together with one end of the cylinder body 1 through the connecting ring 4, and the other end of the cooling section sleeve 3 is in a free state Inside the cylinder 1, the multiplier head 6 and the multiplier cylinder 7 are welded as a whole, the cone tip of the multiplier head 6 points to the desuperheating water nozzle 10, and there are four supporting ribs 5, along the The outer circle of the multiplier cylinder 7 is evenly distributed in the radial direction, and the supporting ribs 5 are...

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Abstract

The invention discloses a superheated steam thermoreduction device. A cone tip of a multiplier head 6 is directed to a thermoreduction water nozzle 10, the axis of a multiplier cylinder 7 coincides with the axis of a cylinder 1, the end of a thermoreduction water pipe 9 is provided with a thermoreduction water nozzle 10, and the end face 11 of the free end of a thermoreduction section sleeve 3 andthe thermoreduction water nozzle 10 are on the same plane. When superheated steam obtained after preliminary mixing flows to the mixed multiplier head, the superheated steam is diffused in the circumferential direction along the angle of the cone surface, the mixed superheated steam generate secondary mixing in the diffusion process, the temperature of the superheated steam is more uniform, and the superheated steam thermoreduction device is widely used in power station boilers.

Description

technical field [0001] The invention relates to a superheated steam desuperheating device, which is applied in the fields of thermoelectricity and petrochemical production. Background technique [0002] In the field of power generation, the steam entering the steam turbine is superheated steam with a certain degree of superheat. There are strict requirements on the temperature range of the steam. The temperature control of the superheated steam is a key link in the production and operation of the power plant boiler. If the temperature is insufficient, the steam turbine The blades of the blades may have a liquid hammer accident, and the temperature is too high, which will cause damage to the boiler, because the material of the superheater and the main steam pipe of the boiler has an upper limit requirement on the temperature. Exceeding the temperature will reduce the performance and life of the material, and even ACCIDENT. In order to control the temperature of the superheat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22G5/12F28C3/08
CPCF22G5/123F28C3/08
Inventor 毕雨田栋史凤林王亮周凯马海燕
Owner VEOLIA (HARBIN) THERMAL POWER CO LTD