Tower-type photothermal power generation high-temperature molten salt (640 DEG C) thermal absorber tube panel

A heat absorber tube panel and photothermal power generation technology, which is applied to solar collectors, components of solar collectors, solar collectors using working fluids, etc., can solve problems such as corrosion and reduce manufacturing difficulty , Guarantee the effect of strength

Inactive Publication Date: 2019-01-15
HARBIN BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing foreign tower-type molten salt power station absorber tube panels are made of 316H stainless steel and 800H, which may cause corrosion and mechanical problems.

Method used

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  • Tower-type photothermal power generation high-temperature molten salt (640 DEG C) thermal absorber tube panel
  • Tower-type photothermal power generation high-temperature molten salt (640 DEG C) thermal absorber tube panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A tower-type photothermal power generation high-temperature molten salt (640°C) absorber tube panel, which consists of: header body 1, header pipe joint 2 and heat absorber tube panel 3, the header body and a The ends of the header pipe joints of the set are connected, and the other end of the header pipe joints is connected with the set of heat absorber tube panels, wherein the header pipe joints are connected with the The tube panel of the heat absorber is welded with a V-shaped groove.

Embodiment 2

[0023] According to the tube panel of the tower-type photothermal power generation high-temperature molten salt (640°C) absorber tube panel described in Example 1, the material of the header body is Sanicro25 large-diameter tube, and the material of the header pipe joint is Sanicro25 small-caliber tube The material of the tube panel of the heat absorber is Sanicro25, wherein the material of the Sanicro25 is austenite in the metallographic structure.

Embodiment 3

[0025] According to the tower-type photothermal power generation high-temperature molten salt (640°C) absorber tube panel described in embodiment 1 or 2, the yield strength of the Sanicro25 material is greater than or equal to 310MPa, the tensile strength is greater than or equal to 655MPa, and the elongation is greater than or equal to Equal to 40%.

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Abstract

The invention relates to a tower-type photothermal power generation high-temperature molten salt (640 DEG C) thermal absorber tube panel. Solar salt molten salt is used as the heat carrier for a thermal absorber in tower-type photothermal power generation, and the outlet design temperature of the thermal absorber is 565 DEG C, at the time, stainless steel and nickel-based alloy are the main materials of the thermal absorber tube panel, and the stable performance of the stainless steel and nickel-based alloy when being contact with a heat transfer medium is very important for the service life of a power plant. The tower-type photothermal power generation high-temperature molten salt (640 DEG C) thermal absorber tube panel comprises a header body (1), header pipe joints (2) and reheater heating surface tube panels (3), wherein the header body is connected with the end parts of a group of the header pipe joints, and a group of reheater heating surface tube panels are connected to the other ends of the header pipe joints, wherein the header pipe joints and the reheater heating surface tube panels are welded by V-shaped beveled edges. The tower-type photothermal power generation high-temperature molten salt (640 DEG C) thermal absorber tube panel is applied to the field of solar tower-type photothermal power generation.

Description

Technical field: [0001] The invention relates to a tube panel of a tower-type photothermal power generation high-temperature molten salt (640°C) heat absorber. Background technique: [0002] With the gradual increase in the proportion of renewable energy, solar thermal power generation has attracted more and more attention. From the perspective of photothermal power generation technology, the heat collecting carrier with excellent performance can improve the utilization rate of solar energy, reduce the danger in the operation of the equipment, reduce the production cost, and increase the temperature of the heat collecting carrier is the most effective way to improve its thermal efficiency. The future core research and development direction of CSP technology. At present, the molten salt used in domestic and foreign solar thermal power stations is mainly SolarSalt molten salt (40% KNO3+60%NaNO3), and its decomposition temperature is 593°C. [0003] In tower photothermal powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24S10/70F24S60/00F24S80/00C22C30/02
CPCC22C19/052C22C19/053C22C30/02
Inventor 张明宝黄莺贾培英殷亚宁李琪徐翔张义堃朱绘娟
Owner HARBIN BOILER
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