Device and method for generating superheated steam for pneumatic test
A superheated steam and aerodynamic test technology, applied in the direction of steam generation, superheat temperature control, steam superheating, etc., can solve the problems of unfavorable aerodynamic test and high cost, and achieve the effect of easy control of stability, good stability and cost reduction.
Active Publication Date: 2019-08-23
SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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Problems solved by technology
The various devices and their start-up and control needs are costly
Moreover, the parameters of the superheated steam at the outlet of the superheated boiler always fluctuate within a certain range, directly using the superheated steam produced by the superheated boiler is not conducive to the aerodynamic test
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[0023] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, not to limit the present invention.
[0024] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the inventio...
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The invention relates to the technical field of superheated steam preparation, in particular to a generating device and method for superheated steam for pneumatic tests. The device comprises a saturated steam generator used for generating saturated steam, a steam pipeline communicating with an outlet of the saturated steam generator, and a throttling adjusting valve arranged on the steam pipeline. The saturated steam generated in the saturated steam generator enters the steam pipeline and throttled through the throttling adjusting valve in an isoenthalpy manner to form the superheated steam. According to the method, the saturated steam generator generates the saturated steam with a first preset pressure parameter value, the saturated steam is introduced into the steam pipeline and is subject to isenthalpic throttling through the throttling adjusting valve on the steam pipeline to form the superheated steam with a second preset pressure parameter value, and the superheated steam is used for carrying out the pneumatic tests. According to the generating device and method, the throttling adjusting valve is used for conducting isenthalpic throttling on the saturated steam to generate the superheated steam, the production process of the superheated steam can be simplified, the cost is reduced, and the stability of pressure of the superheated steam is improved.
Description
technical field [0001] The invention relates to the technical field of superheated steam preparation, in particular to a device and method for generating superheated steam for pneumatic testing. Background technique [0002] Turbomachinery often requires aerodynamic testing to determine the aerodynamic performance of a structure. For steam turbines, saturated steam cannot be used for aerodynamic tests due to the large difference in properties near the saturation line, so superheated steam is usually used for aerodynamic tests. In the prior art, the production process of superheated steam is very complicated. Taking superheated boilers as an example, superheated steam is actually obtained by heating saturated steam, which requires the coordinated operation of components such as water walls, steam drums, downcomers, and superheated pipes, and a lot of equipment. In addition, since the steam must flow, it is necessary to configure a lot of equipment to achieve circulating flo...
Claims
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IPC IPC(8): F22G5/04
Inventor 何劲徐嗣华胡志强肖蕾李月月
Owner SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD