A multi-entrance single-chamber thermal aperture cooling device for ground-based solar telescopes
A technology for solar telescopes and cooling devices, applied in telescopes, optics, optical components, etc., can solve the problems of low sealing reliability, low cooling efficiency, and high processing difficulty
Active Publication Date: 2016-05-18
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology
This device has low cooling efficiency, high processing difficulty and low sealing reliability
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[0037] Such as figure 1As shown, the present invention is a multi-entrance single-cavity thermal diaphragm cooling device for ground-based solar telescopes, which consists of a liquid inlet pipe 1, a liquid outlet pipe 2, a cooling chamber 3 and a diaphragm reflection panel 4. First, the constant temperature cooling liquid Enter the cooling chamber 3 from the liquid inlet pipe 1, and then, due to the obstruction of the back wall of the diaphragm reflective panel 4, the high-speed liquid flow flowing in from the liquid inlet pipe 1 forms a circular hole jet, and the center of the liquid inlet pipe has a certain radius. In the circular domain of , the fluid and the wall have a relatively high velocity. According to the principle of jet cooling, a large heat transfer coefficient is generated in this circular area (called "jet cooling area"), forming a jet cooling with extremely high heat transfer efficiency, which can convert the All the heat absorbed by the diaphragm reflectiv...
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The invention discloses a multi-inlet single-cavity type hot diaphragm cooling device for a ground-based solar telescope. The multi-inlet single-cavity type hot diaphragm cooling device is composed of a plurality of liquid inlet pipes, a plurality of liquid outlet pipes, a cooling cavity and a diaphragm reflection panel. The cooling cavity is located in the back of the diaphragm reflection panel, closely attached to the diaphragm reflection panel and directly connected with the liquid inlet pipes and the liquid outlet pipes. The liquid inlet pipes and the liquid outlet pipes are evenly arranged on a circular ring with the main light axis of the telescope as the axis. The liquid inlet pipes are closer to the main light axis of the telescope than the liquid outlet pipes. According to the multi-inlet single-cavity type hot diaphragm cooling device, the cooling efficiency of the multi-inlet single-cavity type hot diaphragm cooling device is greatly improved, meanwhile, the structure of the multi-inlet single-cavity type hot diaphragm cooling device is simplified so that the multi-inlet single-cavity type hot diaphragm cooling device can be convenient to manufacture, assemble and seal, and the application range of the multi-inlet single-cavity type hot diaphragm cooling device is expanded.
Description
technical field [0001] The invention relates to solar telescope thermal aperture cooling technology and equipment thereof, in particular to a cooling device based on the circular hole jet flow principle and the jet flow cooling principle and applied to the thermal aperture of a large-diameter ground-based solar telescope. Background technique [0002] With the development of solar physics, the time, space and spectral resolution requirements for the observation of phenomena in the active region of the sun are constantly increasing, which further promotes the large-aperture of ground-based solar telescopes, which also brings serious problems while improving the resolution. The thermal effect threatens the safe operation of the telescope; at the same time, because it is difficult to manufacture large-aperture high-quality sealed windows, large-aperture ground-based solar telescopes all adopt an open lens barrel structure, and each optical element is directly exposed to the air,...
Claims
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IPC IPC(8): G02B23/00
Inventor 刘洋毅顾乃庭饶长辉
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI