GB1582836A - Jacketed vessel - Google Patents

Description

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However, it will be appreciated that, if desired, the vessel, the jacket, and the flowguiding member may all be of stainless steel.

It will be appreciated that depending on the medium used for heating or cooling and depending on whether heating or cooling is involved, the part referred to in the foregoing description as the 'inlet' may be used as an outlet and the part referred to as an 'outlet' may be used as an inlet.

It will also be appreciated that the jacket or part thereof, may be, neglecting the dimples, substantially flat and disposed against a flat wall of the vessel, the flow guiding member disposed between the flat wall of the vessel and the generally flat "jacket" or jacket part extending in a flat spiral.

WHAT WE CLAIM IS:- 1. A vessel having a jacket adjoining a wall thereof, a chamber for a temperature controlling fluid being defined between the jacket and the wall of the vessel, an inlet and an outlet to said chamber being provided in the jacket and a flow guiding member being disposed within said chamber between the jacket and the wall of the vessel for guiding the flow of fluid in the course of its passage through the chamber from the inlet to the outlet, the vessel wall being of sheet metal and the jacket being in the form of a metal sheet spaced from the vessel wall over the major part of the area of the jacket, the jacket having, distributed thereover at intervals a plurality of localised indentations at which the jacket engages the wall of the vessel, each said indentation being entirely encircled by a respective zone over which the jacket is out of contact with and spaced from the wall of the vessel.

2. A vessel according to the claim 1 wherein, in each said indentation, the jacket is welded to the vessel wall.

3. A vessel according to claim 1 wherein said wall of the vessel adjoined by the jacket extends entirely around the vessel, defining the periphery thereof, and wherein said jacket extends entirely around said periphery of the vessel, the flow guiding member extending in a coil around the vessel and defining with the jacket and said wall of the vessel an elongate passage extending in the fashion of a coil around the vessel from said inlet to said outlet.

4. A vessel according to any of claims 1 to 3 wherein the flow guiding member is a metal rod, tube or bar.

5. A vessel according to any of claims 1 to 3 wherein the flow guiding member is an elongate metal "T" section member.

6. A vessel according to any of claims 1 to 3 wherein the flow guiding member is an elongate metal "L" section member.

7. - A vessel according to any preceding claim wherein said wall of the vessel, said jacket and said flow guiding member are all of stainless steel.

8. A vessel according to any preceding claim wherein the vessel has two distinct similar jackets around said wall thereof, at different levels.

9. A vessel as claimed in claim 1 and substantially as hereinbefore described with reference to, and as shown in, the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. similar metals, and in this case welding of the jacket to the vessel in the region of the dimples may be omitted, the dimples simply bearing on the vessel wall, or alternatively the jacket being welded to the vessel via patch plates. Thus, for example, if the vessel is of stainless steel and the jacket of mild steel, the jacket may be welded to the vessel via stainless steel patch plates. However, it will be appreciated that, if desired, the vessel, the jacket, and the flowguiding member may all be of stainless steel. It will be appreciated that depending on the medium used for heating or cooling and depending on whether heating or cooling is involved, the part referred to in the foregoing description as the 'inlet' may be used as an outlet and the part referred to as an 'outlet' may be used as an inlet. It will also be appreciated that the jacket or part thereof, may be, neglecting the dimples, substantially flat and disposed against a flat wall of the vessel, the flow guiding member disposed between the flat wall of the vessel and the generally flat "jacket" or jacket part extending in a flat spiral. WHAT WE CLAIM IS:-

1. A vessel having a jacket adjoining a wall thereof, a chamber for a temperature controlling fluid being defined between the jacket and the wall of the vessel, an inlet and an outlet to said chamber being provided in the jacket and a flow guiding member being disposed within said chamber between the jacket and the wall of the vessel for guiding the flow of fluid in the course of its passage through the chamber from the inlet to the outlet, the vessel wall being of sheet metal and the jacket being in the form of a metal sheet spaced from the vessel wall over the major part of the area of the jacket, the jacket having, distributed thereover at intervals a plurality of localised indentations at which the jacket engages the wall of the vessel, each said indentation being entirely encircled by a respective zone over which the jacket is out of contact with and spaced from the wall of the vessel.

2. A vessel according to the claim 1 wherein, in each said indentation, the jacket is welded to the vessel wall.

3. A vessel according to claim 1 wherein said wall of the vessel adjoined by the jacket extends entirely around the vessel, defining the periphery thereof, and wherein said jacket extends entirely around said periphery of the vessel, the flow guiding member extending in a coil around the vessel and defining with the jacket and said wall of the vessel an elongate passage extending in the fashion of a coil around the vessel from said inlet to said outlet.

4. A vessel according to any of claims 1 to 3 wherein the flow guiding member is a metal rod, tube or bar.

5. A vessel according to any of claims 1 to 3 wherein the flow guiding member is an elongate metal "T" section member.

6. A vessel according to any of claims 1 to 3 wherein the flow guiding member is an elongate metal "L" section member.

7. - A vessel according to any preceding claim wherein said wall of the vessel, said jacket and said flow guiding member are all of stainless steel.

8. A vessel according to any preceding claim wherein the vessel has two distinct similar jackets around said wall thereof, at different levels.

9. A vessel as claimed in claim 1 and substantially as hereinbefore described with reference to, and as shown in, the accompanying drawings.