a steam dryer
A dryer and steam technology, used in steam generation, steam boilers, steam boiler accessories, etc., can solve the problems of increasing manufacturing, processing, installation and transportation costs, increasing the size of the steam generator, and increasing the inlet area, and achieves structural Compact, easy to manufacture, high rotation speed effect
Active Publication Date: 2019-08-13
RES INST OF NUCLEAR POWER OPERATION +1
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Problems solved by technology
In the corrugated plate dryer, water droplets hit the plate wall by inertia and accumulate into a water film, and then flow out downwards driven by gravity. When the steam velocity at the inlet of the dryer exceeds the critical velocity, the water droplets will be re-carried inside the corrugated plate, resulting in a sharp increase in the outlet humidity. Rise, seriously deviate from the use requirements
In order to avoid reaching the critical speed, a higher corrugated plate (more than 1m) is usually used to increase the inlet area, resulting in a corresponding increase in the size of the steam generator, which increases the cost of manufacturing, processing, installation and transportation
Method used
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[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0030] Such as figure 1 As shown, a new type of steam dryer includes guide vane support circular plate 1, guide vane 2, base plate 3, lower cylinder 4, ring plate 5, drying blade 6, upper cylinder 7, side plate 8, top plate 9 and The drain pipe 10, the bottom of the guide vane 2 is connected to the upper surface of the supporting circular plate 1, the top of the guide vane 2 is connected to the lower surface of the base plate 3, the center of the base plate 3 has a hole, and the lower part of the lower cylinder 4 is connected to the upper surface of the base plate 3 The upper part of the lower cylinder 4 is connected with the lower surface of the ring plate 5, the upper surface of the ring plate 5 is connected with the bottom of the drying blade 6, and the drying blade 6 is surrounded by the upper cylinder 7, and the upper cylinder 7. The up...
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The invention belongs to the technical field of steam-water separation and particularly relates to a steam dryer. The bottom of a guide vane is connected with the upper surface of a guide vane supporting circular plate, the top of the guide vane is connected with the lower surface of a base plate, and an opening is formed in the center of the base plate; the lower portion of a lower cylinder is connected with the upper surface of the base plate, and the upper portion of the lower cylinder is connected with lower surface of an annular plate; the upper surface of the annular plate is connected with the bottom of a drying vane which is enclosed by an upper cylinder, the upper portion of the upper cylinder is welded to a top plate, and the top of the drying vane is connected with the top plate; an opening formed in the center of the top plate serves as a steam outlet, and certain small holes are formed to serve as by-pass holes; and a drain pipe is connected with the base plate, and a water collecting box is formed by side plates, the base plate and the top plate. The steam dryer is high in critical speed, compact in structure and easy to machine and manufacture.
Description
technical field [0001] The invention belongs to the technical field of steam-water separation, and in particular relates to a steam dryer. Background technique [0002] As one of the key equipment of the PWR nuclear power plant, the steam generator is used to transmit the heat generated by the reactor to the secondary circuit system and generate steam that meets the performance index to drive the steam turbine to do work. The steam-water separation device in the steam generator (including steam-water separator, gravity separation space and dryer) can remove a large amount of moisture in the steam-water mixture from the U-shaped heat transfer tube bundle, and is an important part of the natural circulation steam generator. Its various tasks The performance index is directly related to the operation safety of the steam generator, the work safety and work efficiency of the steam turbine, and even the safety and reliability of the entire nuclear power plant operation, and the si...
Claims
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IPC IPC(8): F22B37/32F22B37/30
CPCF22B37/306F22B37/327
Inventor 杨雪龙冯靖施慧烈王先元
Owner RES INST OF NUCLEAR POWER OPERATION