Variable steam injector
AssigneeTetra Laval Holdings & Finance S.A.
InventorBengt Palm
Life of this patent
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Abstract
The invention relates to a variable steam injector of the type which has an injector housing (1) with an inlet (2) for the product which is to be heated and an outlet (3) for the heated product. The injector housing (1) also has an inlet (4) for steam. The injector also includes a thick-walled pipe (5) enclosed in the injector housing (1). The thick-walled pipe (5) is provided with a large number of throughgoing holes which form radial ducts (9). Further, there is a product pipe (11) within the thick-walled pipe (5) and which is displaceable in the longitudinal direction of the pipe (5).
Claims7
A variable steam injector comprising an injector housing (1) with an inlet (2) for a product, an outlet (3) for the product and a steam inlet (4), the injector further including a thick-walled pipe (5) enclosed in the injector housing (1) and having a large number of through-going holes which form substantially radial ducts (9), characterised in that within the thick-walled pipe (5), there is disposed a product pipe (11) which is steplessly displaceable in the longitudinal direction of the pipe (5).
The variable steam injector as claimed in any of the preceding claims, characterised in that the product pipe (11) may be displaced between a maximum position and a minimum position.
The variable steam injector as claimed in any of the preceding claims, characterised in that the product pipe (11) is, in its one end, V-notched (13) in order to be able to control the regulation characteristic of the injector.
The variable steam injector as claimed in any of the preceding claims, characterised In that the radial ducts (9) are disposed in rows along the longitudinal direction of the pipe (5), and that every other row of ducts (9) is offset half a pitch between the ducts (9).
Dependencies are inferred from the claim text.