Self-precooling liquid nitrogen tunnel quick freezer

A self-precooling and quick-freezing machine technology, which is applied in household refrigeration equipment, cooling fluid circulation equipment, lighting and heating equipment, etc., and can solve the problem of liquid nitrogen waste and other issues

CN104697263BActive Publication Date: 2017-03-08荣成市同福机械制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-03-08

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Abstract

The invention relates to a quick freezer. In order to solve the technical problem of the waste of the liquid nitrogen in the prior art, the invention provides a self-prefreezing liquid nitrogen tunnel quick freezer. The self-prefreezing liquid nitrogen tunnel quick freezer comprises a tunnel freezing chamber and a surrounding type conveying belt, wherein liquid nitrogen sealing devices are arranged at the feeding end and the discharging end of the freezing chamber respectively; the quick freezer is characterized in that a prefreezing chamber is formed in the exterior of the feeding end of the freezing chamber; the chamber wall of the prefreezing chamber is fixedly connected to the chamber wall of the feeding end of the freezing chamber; the liquid nitrogen sealing device is arranged at an end opening of the outer side of the prefreezing chamber; the conveying belt penetrates through the prefreezing chamber; the side end of the conveying belt stretches out of the exterior of the prefreezing chamber. The self-prefreezing liquid nitrogen tunnel quick freezer is reasonable in structure, simple and convenient to operate and high in quick freezing efficiency; the production cost can be effectively reduced; the self-prefreezing liquid nitrogen tunnel quick freezer has a wide market prospect.
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Description

technical field

[0001] The invention relates to a quick-freezing device, in particular to a self-precooling liquid nitrogen tunnel quick-freezing machine. Background technique

[0002] The applicant submitted a patent application for a tunnel-type liquid nitrogen quick-freezing machine on December 4, 2014. The application number is: 201420750986.X. The tunnel-type liquid nitrogen quick-freezing machine mainly solves the serious leakage of liquid nitrogen in the current liquid nitrogen quick-freezing machine 1. The technical problem of high liquid nitrogen usage, the technical solution adopted is to set up a liquid nitrogen sealing device at the feeding end and the discharging end of the freezing chamber respectively; the liquid nitrogen sealing device includes a The top of the bellows is provided with an air inlet channel, and the bottom of the bellows is provided with a blower port. The bellows is sealed and fixed with the top plate and the two side walls of the freezer. T...

Examples

Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] as attached figure 1 As shown, a self-precooling liquid nitrogen tunnel quick-freezing machine includes a tunnel-type freezing chamber 1 and a surrounding conveyor belt 2. The two ends of the freezing chamber are respectively a feed end 3 and a discharge end 4. The surrounding The type conveyor belt passes through the freezing chamber to form an upper and lower conveyor belt, and the two ends of the conveyor belt protrude from the feeding end and the discharging end of the freezing chamber respectively.

[0016] The structure of this freezing chamber 1 is consistent with the structure of the traditional liquid nitrogen tunnel type quick-freezing machine. The top of the freezing chamber is provided with a liquid nitrogen spray pipe 5, and the top wall of the freezing chamber is provided with a downward pressure diffusion fan 6. Its structure and ...