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Defreezing method and its device

A so-called, regional technology, applied in the field of thawing and its devices, can solve problems such as temperature changes and difficult temperature control in the thawing chamber, and achieve high-quality thawing effects

Inactive Publication Date: 2010-06-16
MIURA COMPANY LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Although Patent Document 2 also discloses the technology of intermittently operating the decompression means, the technology of this Patent Document 2 is aimed at eliminating the air that stays around the object to be thawed during the thawing process, rather than adjusting the temperature in the thawing chamber. Or the purpose of controlling the pressure to a predetermined pressure is a method of storing water in the thawing chamber, heating the water to generate steam and supplying steam. Therefore, the intermittent operation of the vacuum pump will cause the temperature in the thawing chamber to change. Fine temperature control of the thawing chamber is difficult

Method used

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  • Defreezing method and its device
  • Defreezing method and its device
  • Defreezing method and its device

Examples

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Embodiment

[0057] Below, specific embodiments of the thawing device implementing the present invention will be described in detail with reference to the accompanying drawings. figure 1 is a schematic configuration diagram of an embodiment, figure 2 is a flow chart showing the outline of the control flow (processing flow) of this embodiment, image 3 is true figure 2 The flow chart showing the outline of the main processing flow of Figure 4 It is a timing chart for explaining the defrosting in the first defrosting mode performed in this embodiment, Figure 5 It is a timing chart for explaining the defrosting in the second defrosting mode performed in this embodiment, Figure 6 is true Figure 4 The main parts of the timing diagram are described in detail. exist Figure 4 ~ Figure 6 In , the part indicated by the solid line below the pressure characteristic curve indicates that the equipment is working.

[0058] The thawing device of Example 1 is suitable for use as a commercial ...

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Abstract

The temperature or pressure in a thawing zone 2 is controlled to a preset level in a thawing process to perform the thawing of an object 1 with low-pressure steam in the thawing zone 2 by evacuating the thawing zone 2 under controlled evacuation speed while supplying steam to the thawing zone 2. The subject thawing apparatus is provided with a steam supplying means 3 to supply steam to the thawingzone 2, an evacuation means 4 to evacuate the thawing zone 2, a detection means 7 to detect the temperature or pressure in the thawing zone 2 and a controlling means to adjust the value detected by the detection means 7 to be equal to a preset level by intermittently operating the evacuation means 4 while supplying steam by the steam supplying means 3.

Description

technical field [0001] The invention relates to a so-called vacuum steam thawing method and its device for thawing objects to be thawed with low-pressure steam in a thawing area. Background technique [0002] The vacuum steam thawing is that when the object to be thawed is put into a container filled with low-pressure saturated steam whose pressure is lower than atmospheric pressure, the steam condenses on the surface of the object to be thawed, so that the object to be thawed can obtain a large amount of latent heat of condensation generated at this time, Patent Document 1 discloses a thawing method for thus thawing the object to be thawed. [0003] As such a vacuum steam thawing method, in order to realize high-quality thawing, it is important to finely and accurately control the temperature or pressure in the thawing chamber. [0004] In order to achieve this purpose, it is necessary to maintain a predetermined low pressure in the thawing chamber by decompression means, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L3/365A23L3/36A23B4/07A23B7/045
CPCY02P60/85A01K61/70E02B3/043E02B3/046
Inventor 若狭晓三浦正敏松本宏典松川泰三三堂由健
Owner MIURA COMPANY LIMITED
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