Method And Device For The Thermal Treatment Of A Product

A heat treatment method and product technology, applied in food heat treatment, heat exchange equipment, lighting and heating equipment, etc., can solve the problems that positive pressure gradient cannot be observed, product quality is harmful, etc.

Inactive Publication Date: 2014-07-16
KRONES AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, this can be detrimental to product quality, and

Method used

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  • Method And Device For The Thermal Treatment Of A Product

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Embodiment Construction

[0008] Preferably, the negative pressure is adjusted in response to a pressure difference measured between the outlet of the primary circuit and the feed pipe of the secondary circuit. In the remaining area of ​​the heat exchanger, then at least this positive pressure gradient prevails between the primary and secondary circuits. The differential pressure can be monitored in a simple manner with conventional pressure gauges and control units.

[0009] Preferably, the returning exchange medium is collected in a vacuum tank. The exchange medium can then be temporarily stored under vacuum. The vacuum tank then acts as a system separation for the exchange medium conducted or collected under vacuum conditions from ambient pressure.

[0010] Preferably, the pressure of the vacuum tank is adjusted so that negative pressure prevails at the feed side of the secondary loop. Due to the return pipe of the secondary circuit, a positive pressure gradient from the primary circuit to the se...

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Abstract

The invention relates to a method and a device for the thermal treatment of a product. The invention describes a method for observing a positive pressure gradient between a main loop for guiding the product and an auxiliary loop for guiding heat exchange medium in a heat exchanger, and a corresponding treating device. According to the method, through applying a negative pressure to a reflux pipe of the auxiliary loop, the positive pressure gradient is generated. Therefore, a cross section reducing facility of the main loop can be prevented. Thereby the products comprising fruit slice can be treated with a specifically moderate manner.

Description

technical field [0001] The present invention relates to a method of heat treatment of a product according to the preceding claim 1 and a device for the treatment of the product according to the invention. Background technique [0002] As is generally known, heat exchangers are used in the heat treatment of liquid products, such as flash pasteurization of beverages. Here, the product passes through a primary circuit of heat exchangers and is heated (typically heated water flows through a separate secondary circuit) by a heat exchange medium, or cooled. Furthermore, in order to reliably avoid contamination of the secondary circuit by undesired products in the event of a leak, a so-called positive pressure gradient from the primary circuit to the secondary circuit is produced. This is done by means of an overpressure in the main circuit, which is then eg 4 bar at the inlet of the main circuit and 3 bar at the outlet of the main circuit. The pressure prevailing in the feed pip...

Claims

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Application Information

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IPC IPC(8): A23L3/18A23L2/46F28F27/00
CPCF28F27/00A23L3/16F28D2021/0042F28F2265/16A23L3/18A23L2/46A23V2002/00A23V2300/24
Inventor T·荣格F·尤斯特尔斯蒂芬·普斯勒S·博邦M·弗里斯特
Owner KRONES AG
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