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An infrared differential pressure puffing drying equipment and process for fruits and vegetables

A puffing drying, infrared technology, applied in application, food science, food forming, etc., can solve the problems of high volume demand and large space occupation of vacuum tanks, and achieve cost-effective control, simple installation, and uniform radiation intensity. Effect

Active Publication Date: 2022-03-29
SHANDONG ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The second purpose of the present invention is to provide an infrared differential pressure puffing drying process for fruits and vegetables, which discharges part of the gas into the atmosphere during the decompression process, effectively solving the problems of high volume requirements and large space occupation of vacuum tanks

Method used

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  • An infrared differential pressure puffing drying equipment and process for fruits and vegetables
  • An infrared differential pressure puffing drying equipment and process for fruits and vegetables
  • An infrared differential pressure puffing drying equipment and process for fruits and vegetables

Examples

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Embodiment 1

[0051] In a typical embodiment of the present invention, refer to figure 1 As shown, a fruit and vegetable infrared differential pressure puffing drying equipment includes an expansion tank, and several layers of material racks are arranged in the expansion tank, and the material racks are used to support the material tray, and the expansion tank is provided with a first pressure sensor; The heating element above each tray, the heating element is equipped with a temperature sensor; the pressurization component, the pressurization component is connected with the expansion tank through the pipeline; the pressure relief component, the pressure relief component is connected with the expansion tank; the pressure reduction component, the pressure reduction component is connected with the The expansion tank is connected, and the depressurization component is provided with the second pressure sensor; the central controller is independent of the first pressure sensor, the second pressur...

Embodiment 2

[0067] This example introduces an infrared pressure difference puffing drying method for fruits and vegetables, using the infrared pressure difference puffing and drying equipment for fruits and vegetables described in Example 1.

[0068] like figure 2 The shown fruit and vegetable infrared differential pressure puffing drying method is realized through the following steps:

[0069] Step ①, spread the pretreated and pre-dried fruit and vegetable raw materials on the material tray 3, and place them in the material rack 2 in the puffing chamber 5, close the door 1; turn on the power, start the central controller 10, set the first The first target pressure, the second target pressure, the target puffing temperature, the target drying temperature, and the target stagnation time, the central controller 10 controls the infrared radiation plate 4, the air compressor 18, and the vacuum pump 17 to start, and the second valve 15 is opened at the same time, and the drying enters the inc...

Embodiment 3

[0079] The difference between this embodiment and embodiment one is:

[0080] In order to reduce the footprint of the vacuum tank, the vacuum tank can be placed outside the expansion tank, refer to image 3 As shown, the vacuum tank surrounds the expansion tank except for the part outside the door, and a vacuum chamber 21 is formed between the vacuum tank and the expansion tank, and the main structure of the vacuum tank and the expansion tank is an integral structural part, so that the thermal insulation effect of the expansion tank is good. In addition to the setting of the pressure relief component and the pressure reduction component, a vacuum chamber is installed outside the expansion tank, which can further effectively solve the problems that the overall equipment occupies a large area and the thermal insulation effect of the expansion chamber is poor.

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Abstract

The invention discloses a fruit and vegetable infrared pressure difference puffing drying equipment and process, which solves the problem of high cost of puffing drying equipment in the prior art, and has the beneficial effect of effectively reducing the volume of a vacuum tank. The specific scheme is as follows: Differential pressure puffing and drying equipment, including an expansion tank, several layers of material racks are arranged in the expansion tank, the material racks are used to support the material tray, and the expansion tank is equipped with a first pressure sensor; the heating assembly includes a heating element installed above each material tray. The heating part is equipped with a temperature sensor; the pressurization component is connected with the expansion tank through the pipeline; the pressure relief component is installed in the expansion tank to relieve the pressure of the expansion tank; the pressure reduction component is connected with the expansion tank connection, the decompression component is provided with a second pressure sensor; the central controller, the central controller is separately connected with the first pressure sensor, the second pressure sensor, the heating component, the pressurization component, the decompression component and the temperature sensor.

Description

technical field [0001] The invention relates to the field of drying technology, in particular to an infrared pressure difference puffing drying equipment and process for fruits and vegetables. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Fruit and vegetable crisps can retain the color, aroma and nutritional elements of fruits and vegetables to the greatest extent, and at the same time have a crisp taste. It is one of the most popular snack foods and is praised as "21st century food" by the international food industry. Among them, the fruit and vegetable pressure difference puffing drying technology, as an emerging non-fried fruit and vegetable crisp processing technology, overcomes the shortcomings of fried fruit and vegetable crisps, such as greasy taste and easy generation of harmful substances. excellent. [0004] The pressure diff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23N12/08A23P30/32
Inventor 于贤龙张宗超贾振超慈文亮孙立刚李寒松孙庆运李青王斌姜世明
Owner SHANDONG ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
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