Capillary steam mixed supercavitation injection noise suppression device

A noise suppression and capillary technology, applied in the field of jet noise reduction and suppression devices, can solve the problems of excessive flow noise fluctuations and large overall sound power

Inactive Publication Date: 2021-04-30
CENT SOUTH UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to design a simple and effective cooling system that does not affect its cooling effect and aims at the technical problems of excessive fluctuation of flow noise and large overall sound power in the circulation device of the existing small-scale refrigeration system. A muffler that reduces jet noise at the outlet of the throttling device, thereby improving the sound quality of the entire refrigeration system and reducing noise pollution

Method used

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  • Capillary steam mixed supercavitation injection noise suppression device
  • Capillary steam mixed supercavitation injection noise suppression device

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing and implementation.

[0020] see figure 1 , the capillary steam-mixed supercavitation injection noise suppression device includes a throttle capillary 1, an evaporator inlet transition pipe 2, a bypass capillary a, the outer diameter of the bypass capillary a is 1.8-2.5mm, and the inner diameter is 0.6-0.7mm , the total length of the bypass capillary a is 200 mm, the length of the bypass capillary a inserted into the front end of the evaporator inlet transition tube 2 is 10 mm, and the distance between the inserted front end and the outlet of the throttle capillary 1 is 10 mm; the bypass capillary a is inserted into the evaporator inlet transition tube 2 The length of the rear end is 10mm, the distance between the inserted rear end and the outlet of the throttle capillary 1 is 170mm, and the connection method of each part is oxygen welding.

[0021] see figure 2 , the capil...

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Abstract

The invention relates to a capillary steam admixture supercavitation jet noise suppression device, which is a device for introducing the refrigerant gas in the middle of the evaporator into the outlet of the capillary tube through a bypass capillary tube, so as to carry out steam admixture for the refrigerant coming out of the capillary tube and entering the evaporator, improving the performance of the evaporator. The local pressure in the steam mixing area can effectively reduce the cavitation number, significantly reduce the pressure when the cavitation collapses, form a phenomenon of super cavitation, and greatly reduce the noise of cavitation and cavitation; the mixed refrigerant flows into the evaporator to complete Compared with the traditional muffler, the present invention has the advantages of simple structure, convenient processing and installation, and low maintenance cost in the later period; and the present invention is widely used, not only suitable for common refrigeration devices such as refrigerators, air conditioners, etc., but also for machinery, metallurgy, etc. , petroleum, chemical, food preservation, artificial environment, biopharmaceutical and other fields of refrigeration systems can use this noise suppression device.

Description

technical field [0001] The invention relates to a new type of spray noise reduction and suppression device, specifically, a refrigerant gas in the middle of the evaporator is introduced into the outlet of the capillary through a bypass capillary, so that the refrigerant coming out of the capillary into the evaporator is mixed with steam. , increase the local pressure in the steam-mixed area, effectively reduce the cavitation number, significantly reduce the pressure when the cavitation collapses, form a supercavitation phenomenon, and greatly reduce the cavitation noise. The mixed refrigerant then flows into the evaporator to complete the cycle. Background technique [0002] The noise research of the refrigeration system shows that, in addition to the mechanical noise and electromagnetic noise of the compressor itself, the flow noise of the system itself directly affects the noise level of the refrigeration system and the sound quality parameters of the refrigeration system,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B41/37
CPCF25B2500/12
Inventor 张玙汪谦旭刘益才
Owner CENT SOUTH UNIV
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