High-voltage electric field low-temperature plasma cold-sterilization testing device

Abstract

The invention discloses a high-voltage electric field low-temperature plasma cold-sterilization testing device which comprises a machine case, a high-voltage electric field low-temperature plasma cold-sterilization core device, a high-voltage transformer, a high-voltage control box, a distribution box, an exhaust fan, a three-color alarm lamp, a machine case door, a PLC and a touch control screen.The high-voltage electric field low-temperature plasma cold-sterilization core device is arranged in an upper containing cavity. The touch control screen is arranged on the machine case door and connected with the PLC. A 60-90-KV high-voltage electric field is generated between a high-voltage electrode and a ground electrode of the high-voltage electric field low-temperature plasma cold-sterilization core device by a 220-V power supply through the high-voltage transformer and other system elements, a gas medium in a package is stimulated to generate plasmas so as to achieve the sterilizing effect, the multi-stage continuous / intermittent type experiment operations can be set by a program and automatically controlled to be completed, and the testing device has the advantages of being precise and controllable in sterilizing program, easy to operate, high in work efficiency and the like.

Description

technical field [0001] The invention relates to the field of food equipment technology, in particular to a high-voltage electric field low-temperature plasma cold sterilization test equipment. Background technique [0002] At present, the sterilization and fresh-keeping packaging technology used for heat-sensitive foods such as fresh meat, fresh fruits and vegetables, and fresh-cut vegetables has problems of incomplete sterilization and secondary pollution; although products can be stored in cold chain logistics, microorganisms can still reproduce in large numbers Cause spoilage and deterioration, and the shelf life is short. In addition, thermal sterilization has a negative impact on the sensory quality and nutritional content of fresh products, which is not conducive to maintaining the original quality. In order to effectively sterilize fresh food and extend shelf life, it is an inevitable trend in the food industry to develop high-efficiency cold sterilization and fresh-...

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Problems solved by technology

[0004] The invention patent with the patent number ZL201410347682.3 disclosed a fresh meat high-voltage electric field plasma synergistic nano-photocatalytic sterilization and preservation method on 2014.11.05, which is used for cold sterilization of fresh meat after MAP packaging. The DBD low-temperature plasma sterilization structure is relatively simple, which cannot meet the continuous gap operation and safety shielding requirements of high-voltage electric field low-temperature plasma cold sterilization

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