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Apparatus, process and use

A technology of installation device and vertical arrangement, applied in the direction of cleaning heat transfer device, application, lighting and heating equipment, etc., can solve the problems of low efficiency heat transfer exchange, product accumulation, product degradation and combustion, etc., to achieve effective heating and/or cooling, The effects of thorough mixing and good heat transfer

Inactive Publication Date: 2017-08-18
NESTEC SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This high rotational speed leads to a higher risk of product degradation and burning due to increased friction between the blades, product and the inner surface of the exchanger (cylindrical barrel)
However, rotatable shafts, if operated at too low a rotational speed, will lead to undesirable product buildup as the product cannot be removed quickly from the surface and less efficient heat transfer exchange will occur

Method used

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  • Apparatus, process and use
  • Apparatus, process and use
  • Apparatus, process and use

Examples

Experimental program
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Embodiment Construction

[0116] Such as figure 1 As shown, a preferred embodiment of the present invention provides a scraped surface heat exchanger comprising a cylindrical chamber having a heat exchange surface 4 through which the mixture is passed. The chamber is surrounded by a jacket (X) through which heating or cooling means can be circulated to provide heat exchange by conventional heat exchange procedures. At one end of the chamber there is provided an inlet (X) and at its opposite end an outlet (X) through which the mixture can pass. Inside the chamber is rotatably mounted a rotatable shaft 2 and on the rotatable shaft is fixedly mounted longitudinal blades 3 for sweeping the mixture.

[0117] figure 2 A preferred embodiment of the invention is shown in which the blade 3 with the non-contacting blade edge (X) is at a distance from the inner surface of the heat exchange surface (X). The rotatable shaft 2 and the inner surface of the heat exchange surface (X) define an annular space (X) the...

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PUM

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Abstract

A scraped surface heat exchanger comprising a heat exchange surface, a rotatable shaft, said shaft having at least one mounting means, and a sweeping element wherein said sweeping element comprises,a blade having at least one aperture for engaging with the mounting means such that the sweeping element is connected to the mounting means and characterised in that when the rotatable shaft is rotating relative to the heat exchange surface the sweeping element has substantially no movement relative to the rotating shaft and said sweeping element has substantially no contact with the inner surface of the heat exchanger.

Description

technical field [0001] The present invention relates to heat exchangers, such as heat exchangers having internal blades for mixing the contents, also referred to herein as scraped surface heat exchangers. Background technique [0002] Scraped surface heat exchangers are widely used in the food industry mainly for continuous heating and cooling of viscous food products. Conventional heat exchangers known in the art generally consist of a cylindrical chamber surrounded by a jacket, a rotating shaft mounted in the chamber, and a series of blade scrapers hingedly connected to the rotating shaft so that the blades scrape off during operation. interior surface of the chamber. [0003] A cooling or heating medium such as ammonia, glycerin, hot water or steam circulates through the jacketed cylindrical chamber and provides heat exchange by common heat exchange procedures. The product passes under pressure through a conduit at one end of the heat exchanger and exits the heat exchan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23G1/00A23G1/18A23G3/02A23G7/00A23G7/02A23G9/22F28F19/00F28G3/10
CPCA23G1/0006A23G1/0026A23G1/18A23G3/0226A23G7/0093A23G7/02A23G9/224F28F19/008F28G3/10A23G1/10
Inventor J·泰勒
Owner NESTEC SA