Known cooler of hot fluids related to face seal of rotating shaft constitutes a separate construction block connected throughout piping and hydraulic fittings to second construction block which is face seal of rotating shaft. The cooler contains pipe coil for cooled fluid situated in uniform reservoir and system of cooling fluid inlet and outlet. The second separate construction block of face seal of rotating shaft mentioned above and installed beside cooling system has rotating sliding ring and stationary sliding ring and load spiral springs and lip gasket of rotating toothed bush embedded on the shaft as well as rings for sealing of respective elements of face seal. Being so, the seal has uniform cover for situating its sealing element there.

According to the invention, the cooler of hot fiuids together with face seal of rotating shaft creates one construction block in which pipe coil containing cooled fluid is built in a divided outer casing of face seal of rotating component and being connected to divided direct cover of the face seal. Also, divided outer casing has within a chamber for cooling fluid whereas one part of divided direct cover has a hole for outlet of cooled fluid and the second part of divided direct cover has a hole for inlet of cooled fluid and both holes are connected to pipe coil throughout sealing bush connectors. Outer cover partition for two parts may be made either alongside surface perpendicular to axis of symmetry of block of cooler and face seal or alongside horizontal surface situated through longitudinal axis of symmetry of block of cooler with face seal.

The cooler in question is characterised by very simplified construction having a few components and contemporaneously considerably reduced temperature on rotating shaft and on its seal throughout direct continuous cooling and thereby acceptable assembly and internal cleaning of the whole system.

Subject of the invention in samples is presented on drawings where Fig. 1 shows a longitudinal semi-sight/semi-section of a the cooler with outer casing of face seal of rotating shaft and divided alongside surface perpendicular to longitudinal axis of symmetry of block of cooler with face seal and Fig. 2 shows a semi-sight/ semi-section of the cooler with outer housing divided alongside horizontal surface through longitudinal axis of symmetry of block of cooler with face seal of rotating shaft.

As presented on Fig. 1 and Fig. 2, cooler according to the invention creates one construction block with face seal of rotating shaft and pipe coil 11 containing of cooled fluid is built in a divided outer casing 9/1,9/2 of face seal of rotating shaft 1 connected with divided direct cover 7/1,7/2 of the seal. Moreover, divided outer casing 9/1,9/2 has internal chamber K for cooling whereas one part of divided direct cover 7/1 has a hole _for outlet of cooled fluid and a second part of divided direct cover 7/2 has a hole _3for inlet of cooled fluid and both holes are connected to pipe coil 11 throughout sealing bush connectors 8. Entering of cooling fluid in the cooler is done through hole x, and its exit is through hole x2. Outer casing 9/1 9/2 is divided alongside surface perpendicular to longitudinal axis of symmetry Op of block of cooler with face seal of rotating shaft 1. Toothed bush 2 with teeth Z pumping hot fluid is a part of face seal of rotating shaft 1 being directly coupled together with cooler and rotating sliding ring 3 placed through sealing ring 5 and pin 10 into toothed bush 2 as well stationary sliding ring 4 placed through driver pin 13 incarrying ring 12 and tightened to sliding ring 3 through coil springs 14 situated in part 7/2 of divided direct cover. Toothed bush 2 is fixed to a shaft 1 through fixing ring 16 with screw 17 and sealed with flexible lip ring 19 being placed in part 7/2 of direct cover. Whole divided direct cover 7/1,712 is fixed to pump body 6 and sealed against outer cover 9/1,9/2 with sealing rings 15. Outer cover 9/1,9/2 shown on Fig. 2 is divided alongside horizontal surface throughout longitudinal axis of symmetry Op of block of cooler with face seal and it is sealed on dividing surface with gasket 20 and connected with screws 21.

Subject of the invention can be used for cooling of different hot fluids related to both face seals of rotating elements and to other equipment where cooling is necessary, as well as in particular destination for cooling of hot fluid related to face seal of rotating elements.