Mobile tube plate type molten salt steam generation device
A steam generating device and tube-sheet technology, which is applied in the field of renewable energy utilization, can solve problems such as cracked nozzles, affecting the reliability of molten salt heat exchangers, leakage, etc., to reduce stress, reduce initial investment, and save operation. effect of cost
Active Publication Date: 2017-10-03
HANGZHOU BOILER GRP CO LTD
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AI Technical Summary
Problems solved by technology
Due to the large temperature difference between the inlet and outlet of the molten salt evaporator (may exceed 100°C), the traditional U-shaped tube bundle and shell-and-tube heat exchanger structure has a high temperature difference on the heat exchanger tube sheet. Temperature difference and thermal stress can easily lead to cracks and nozzle leakage, thus affecting the reliability of the molten salt heat exchanger
Method used
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[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0017] Such as figure 1 As shown, a moving tube plate type molten salt steam generating device of the present invention includes: a steam drum 1, a molten salt evaporator 2, a downcomer 3, an upcomer 4, a molten salt inlet 5, a molten salt outlet 6, and a water supply inlet 7 and steam outlet 8; the molten salt evaporator 2 includes: a cylinder 21, an upper head 22, a lower head 23, an evaporation tube bundle 24, an upper tube sheet 25, a lower tube sheet 26, a baffle 27, a central tube 28 and an inner bag shell29.
[0018] The steam drum 1 is placed above the molten salt evaporator 2, and the molten salt evaporator 2 is arranged vertically, and is connected with the steam drum 1 through the downcomer 3 and the upcomer 4 to form a whole. The shell of the molten salt evaporator 2 is composed of a cylinder body 21, an upper head 22, and a lower...
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The invention discloses a mobile tube plate type molten salt steam generation device which comprises a steam drum, a molten salt evaporator, a downcomer, a riser, a molten salt inlet, a molten salt outlet, a feed water inlet and a steam outlet. The molten salt evaporator comprises a drum, an upper sealing head, a lower sealing head, an evaporation tube bundle, an upper tube plate, a lower tube plate, baffle plates, a central barrel and an inner wrapping shell. The steam drum is arranged above the molten salt evaporator and connected with the molten salt evaporator through the downcomer and the riser. The upper tube plate and the lower tube plate in the molten salt evaporator are arranged up and down. The evaporation tube bundle is connected with the upper tube plate and the lower tube plate into a whole in a welding or expanded connection mode. The inner wrapping shell is arranged on the outer side of the lower tube plate. The central barrel is arranged in the center of the molten salt evaporator. The downcomer leading out of the steam drum enters the lower portion of the molten salt evaporator through the central barrel. By adoption of the mobile tube plate type molten salt steam generation device, the problems that a single tube plate and a U-shaped tube bundle are high in temperature difference and large in stress are solved, the safety of the molten salt evaporator is improved, and stress on the evaporation tube bundle can be reduced.
Description
technical field [0001] The invention belongs to the technical field of renewable energy utilization, and in particular relates to a moving tube plate type molten salt steam generating device. Background technique [0002] Solar energy and wind energy are important components of renewable energy. In recent years, in order to solve environmental pollution problems and reduce fossil energy consumption, renewable energy alternatives centered on solar energy and wind energy are emerging all over the world. my country is a country rich in solar energy resources and wind power resources. In the past ten years, the utilization of solar energy and wind energy has made great progress in our country. Statistics show that by the end of 2016, my country's cumulative installed capacity of photovoltaics was 78 million, and the cumulative installed capacity of wind power was 149 million. The proportion of wind energy and solar energy in my country's energy structure is gradually increasing...
Claims
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IPC IPC(8): F22B1/06F22B37/10
CPCF22B1/06F22B37/10
Inventor 姚飞奇应仁丽徐昂刘可亮
Owner HANGZHOU BOILER GRP CO LTD