Freeze-drying device with multistage energy recycling function

A technology of energy recovery and heat recovery, applied in heat recovery systems, applications, food preparation, etc., can solve the problems of high loss of cold energy, little use of system waste heat, and large consumption

Inactive Publication Date: 2011-09-28
陈万仁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, heating the freeze-dried items in the freeze-drying warehouse requires a lot of heat; removing ice or frost on the cold trap also requires a lot of heat; cleaning the raw materials of freeze-dried products (food, medicine) and using warm water also consumes a lot of energy. heat
In the prior art and the freeze-drying equipment used, most of them use electric heating or fossil fuels to heat hot water to melt ice, heat silicone oil to heat the radiant plate in circulation, or use electric heating tubes to directly heat the radiant plate to dry the food in the freeze-drying warehouse. Minimize the use of waste heat generated in the ...

Method used

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  • Freeze-drying device with multistage energy recycling function
  • Freeze-drying device with multistage energy recycling function
  • Freeze-drying device with multistage energy recycling function

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1: This freeze-drying equipment with multi-stage energy recovery and utilization function includes a cooler 13, a cooling fan 20, a compressor, an expansion valve, a cold recovery device 15, a fluid heat recovery device 28, a freeze-drying warehouse 38, The cold trap compartment 7 is equipped with a radiation heating plate 44 in the freeze-drying compartment 38 and a cold trap 54 in the cold trap compartment 7 . The cold trap storehouse 7 communicates with the cooler 13, the cold recovery device 15, and the compressor 1 through a pipeline and a switching valve mounted on the pipeline.

[0025] In the present embodiment, it is: there is a pipeline 10 communicated with it at one end of the cold trap chamber 7, and one end of the cold trap chamber 7 communicates with the cooler 13 through the pipeline 10, and a switching valve is housed on the pipeline 10, which are respectively control valves. Valve 9 and three-way control valve 11, control valve 9 is installed...

Embodiment 2

[0032] Embodiment 2: The structure of this embodiment is similar to that of Embodiment 1, except that a liquid replenishment pipe 55 and a liquid replenishment pipe 57 and valves 56 and valves for controlling them are respectively installed on the fluid delivery pipe 24 and the fluid delivery pipeline inlet pipe 33 58. The liquid replenishing pipe and its valve are installed on the pipeline connected to the compression inlet of the compressor or high-pressure heat pump. Other structures are identical with embodiment 1 (as figure 2 shown).

Embodiment 3

[0033] Embodiment 3: In this embodiment, the two ends of the freeze-drying warehouse 38 are provided with cold air boxes 49a and 49b, the cold air boxes 49a and 49b are integrated with the freeze-drying warehouse 38, and the cold air boxes 49a and 49b are communicated through the air duct 49 , the fan 20 is located in one of the cold air boxes (such as image 3 , Figure 4 Shown); The structure of other parts is identical with the structure of other parts in embodiment 1 or embodiment 2.

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PUM

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Abstract

A freeze-drying device with a multistage energy recycling function disclosed in the invention, comprises a cooler, a cold air generator, a compressor, an expansion valve, a cold energy recoverer, a fluid heat recoverer, a freeze-drying warehouse equipped with a radiation heating plate, a cold trap warehouse equipped with a cold trap, and pipelines for communication. The cold trap warehouse is communicated with the cooler, the cold energy recoverer and the compressor through the pipelines and a conversion valve arranged on the pipeline; the cold air generator is also communicated with the coldenergy recoverer, the cooler and the compressor through the pipelines and a conversion valve arranged on the pipeline; the freeze-drying warehouse is communicated with a packaged air conditioner, or is connected with a freezing room into an integration, or the freeze-drying warehouse and the freezing room are arranged independently, and the freeze-drying warehouse is arranged in the packaged air conditioner or the freezing room. According to the invention, the investment of the device can be reduced, a freeze-drying process can be automatically complete after one charging, the costs of the freeze-drying device and products are reduced, and the popularization of the freeze-drying technology can be provided a strong product support.

Description

technical field [0001] The invention belongs to freeze drying equipment. Background technique [0002] Freeze-dried food produces a lot of waste heat in the industrial production process. For example, in the freezing stage, the condenser of the refrigeration system discharges a large amount of heat while freezing at a low temperature; of heat. On the other hand, heating the freeze-dried items in the freeze-drying warehouse requires a lot of heat; removing ice or frost on the cold trap also requires a lot of heat; cleaning the raw materials of freeze-dried products (food, medicine) and using warm water also consumes a lot of energy. heat. In the prior art and the freeze-drying equipment used, most of them use electric heating or fossil fuels to heat hot water to melt ice, heat silicone oil to heat the radiant plate in circulation, or use electric heating tubes to directly heat the radiant plate to dry the food in the freeze-drying warehouse. Use less waste heat generated i...

Claims

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Application Information

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IPC IPC(8): A23L1/00A23L3/44
CPCY02B30/123Y02B30/52Y02P60/85Y02P70/10
Inventor 陈万仁陈小爽赵书彬
Owner 陈万仁
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