DE102014016089A1 - Wall heat exchanger - Google Patents

Abstract

The present invention relates to a novel double-tube heat exchanger for cooling and / or heating flowable products with a certain solids content, consisting of tubes (1, 2) arranged inside each other for cooling and / or heating flowable products, the product flowing through the inner tube (2) while it is being heated and / or cooled by the product flowing in the outer tube cross section (1), wherein the connecting pieces (10) on the inner tube (2) have a radially curved shape (arc), and in that the connection piece (10) Verbindugsflansche, Clemps and / or fittings (100) are provided, as well as in the outer tube (1) are provided approximately at the end Eckzentrische reductions (3).

Description

Teschen area

The invention relates to a novel double-tube heat exchanger for cooling and / or heating flowable products with a certain solids content, in particular of mash.

State of the art

Optimum tempering of mash is often crucial to the quality of the final product. One way known in the art is to pump the mash through a double tube heat exchanger. These double tube heat exchangers are generally used for cooling and / or heating of flowable products with a certain solids content (eg Fuchtstücke, grains ect.), Depending on the size of the solids content and viscosity of the product different systems are used. Double tube heat exchangers consist of tubes nested within each other, through which the product flows, for example the mash, through the inner tube, while it is heated or cooled by the outer tube cross section by means of a (Servitse-) fluid. If necessary, flow breakers are provided at the respective pipe inlets to ensure optimum uniform heating or cooling of the product in all areas. By a special arrangement of the pipe connections, care is also taken to ensure that the product flow proceeds gently in order to avoid blockages.

In the known Doppelrohrwärmeaustauschern in which mash flows against mash to heat each other and / or to cool, in which no further fluid is provided, are Deartige Verstopffungen in the problem areas, especially in the region of (usually, approximately vertical) connection piece , recently known. To preheat and / or cool the mash, one needs an additional cooling water circuit to bring the mash to a certain temperature.

Presentation of the invention

The present invention is based on the object to provide a double-tube heat exchanger, which is suitable to flowable products against flowable products (especially mash against mash) to drive and exclude any Verstopffungen construction according to the prior art.

According to the invention the above object is achieved with the features of claim 1. Advantageous embodiment of the double tube heat exchanger according to the invention are specified in subclaims.

Thereafter, a double tube heat exchanger according to the preamble of claim 1, characterized in that the connecting pieces have a radially curved shape (arc).

Due to the special Ausgestalltung the connecting piece is a gentle flow from the inner tube in bstw. Neighboring heat exchanger tubes ensured, as by means of the radial (arc) extending flow direction, a blockage is avoided.

The use of Doppelrohrwärmeaustauschers invention leads to the saving of a cooling water circuit and the associated complex installation work. At the same time, the savings in the cooling water circuit mean that more tubes can be made available in the exchanger department due to the space savings, in order to make it more efficient. Mashed against mash, which has the advantage that a much better preheating of the incoming mash is achieved, which leads to enormous cost savings on steam or hot water. In addition, the savings in the exchanger section mean that the input temperature of the mash has a higher bandwidth with regard to the inlet and outlet temperatures.

Other Ziehle, features, advantages and applications of the invention double pipe heat exchanger will become apparent from the following description of an embodiment with reference to the drawings. All described and / or illustrated features, alone or in any combination form the subject matter of the invention, regardless of the summary in individual claims or their dependency.

In the drawing shows

1 the double tube heat exchanger according to the invention.

Embodiment of the invention

In the 1 illustrated advantageous embodiment of the double-tube heat exchanger shows an outer tube 1 , at the end approximately two connecting pieces 10 are arranged. The connecting pieces 10 have one in the direction of flow of the inner tube 2 pointing radially curved shape (arc) on. At the connection piece 10 are preferably connecting flanges and / or Clemps 100 intended.

In the 1 illustrated advantageous embodiment of the double tube heat exchanger shows an outer tube 1 , on which approximately two end reductions are arranged Eckzentrich.

LIST OF REFERENCE NUMBERS

1

Pipe outside

2

Pipe inside

3

Reducers angularly centered

10

Connecting piece with radially bent form 8 sheets)

100

Flanges and / or clemps

Claims (3)

Double tube heat exchanger for cooling and / or flowable products with a certain solids content, consisting of nested tubes ( 1 ; 2 ) for cooling / or heating flowable products, wherein through the inner tube ( 2 ) the product flows while this through the in the outer tube cross-section ( 1 ) flowing product is heated and / or cooled, or vice versa. characterized in that the connecting pieces ( 10 ) have a radially curved shape (arc), so that the product flow proceeds gently, and to avoid clogging. Double tube heat exchanger according to claim 1, characterized in that at the Verbindugsstutzen ( 10 ) Connecting flanges, Clemps and / or screw connections ( 100 ) are preferably provided. Double tube heat exchanger according to claim 1 and 2, characterized in that on the outer tube ( 1 ) approx. at both ends concentric reductions ( 3 ) are provided.

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