Method and device for utilizing liquid nitrogen to conduct naked cooling on ice chest
A cold box bare cooling, liquid nitrogen technology, applied in household refrigeration equipment, container discharge methods, applications, etc., can solve the problems of delaying the start-up progress of the system, high-pressure nitrogen consumption and high energy consumption, and achieve good production results and save energy. The effect of simple and easy operation of materials and energy, and installation
Pending Publication Date: 2017-12-01
YANGMEI GRP TAIYUAN CHEM NEW MATERIAL
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Problems solved by technology
The high-pressure nitrogen consumption and energy consumption of this method are particularly high, and the air separation high-pressure nitrogen system is required to be ready for operation, which delays the start-up progress of the system
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[0015] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0016] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0017] A method of using liquid nitrogen to carry out naked cooling of a cold box. The cold nitrogen gas formed after the liquid nitrogen is vaporized and heated is sent into the equipment and pipelines in the cold box through pipelines, and the equipment and pipelines are cooled and naked cooled.
[0018] Specifically, the m...
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The invention relates to the field of ice chest leakproof, in particular to a method and device for utilizing liquid nitrogen to conduct naked cooling on an ice chest. The method comprise the steps that cold nitrogen formed after vaporization and temperature rising of the liquid nitrogen is utilized and sent into equipment and pipes in the ice chest through pipelines, so that cooling and naked cooling are conducted on the equipment and pipes. The device for utilizing the liquid nitrogen to conduct naked cooling on the ice chest comprises a water bath vaporizer and a water bath heater, wherein the water bath vaporizer is connected to a discharging port of the liquid nitrogen, and the water bath heater is connected to a discharging port of the water bath vaporizer; the discharging port of the water bath vaporizer is connected to a raw material air inlet ice chest pipeline through the pipelines. According to the method and device for utilizing the liquid nitrogen to conduct naked cooling on the ice chest, the method and device is simple and easy to conduct, a lot of materials and energy are saved, the naked cooling effect is better, and system driving progress can be further accelerated in case that a high pressure nitrogen system does not have the condition of being put into use. The method and device for utilizing the liquid nitrogen to conduct naked cooling on the ice chest is good in production effect, high in implementation and suitable for using and popularizing.
Description
technical field [0001] The invention relates to the field of anti-leakage of cold boxes, in particular to a method and device for naked cooling of cold boxes by using liquid nitrogen. Background technique [0002] The bare cooling method of the original cold box is to use high-pressure nitrogen throttling expansion and Joule-Thomson effect to generate cooling capacity to cool the system and make the surface of the equipment frost. The high-pressure nitrogen consumption and energy consumption of this method are particularly high, and the air separation high-pressure nitrogen system is required to be ready for operation, which delays the start-up progress of the system. Contents of the invention [0003] In order to solve many problems existing in the original cold box naked cooling method, the present invention provides a method and device for using liquid nitrogen to perform cold box naked cooling. [0004] The present invention is achieved through the following technical...
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IPC IPC(8): F25D3/10F17C7/04
CPCF17C7/04F25D3/10F17C2225/0123F17C2223/013F17C2221/014F17C2227/0316
Inventor 荆三伟蒲昭廷王克星李荣王金娟郝婉莹
Owner YANGMEI GRP TAIYUAN CHEM NEW MATERIAL