LIQUID RING VACUUM PUMP WITH A SEPARATE ROTATING CONTAINER
The invention concerns a liquid ring vacuum pump for open suction enterprise with coaxially a driving motor arranged in addition and separate Umlaufund Abscheidebehäker as well as a radiator for the umhufende operating liquid of the Vakunmpumpe.
The Fordernng, the operating liquid in the circulation zn leads nnd if possible little operating liquid from the outside to supply to have, makes high demands against the Abscheidnng of the operating liquid carried in the gas flow as well as against the cooling of the reconducted operating liquid, in order to keep the Verdampfungsverluste small, whereby both problems can be controlled with enterprise with large level more easily. Consequently well-known Vakunmpumpen aggregates with liquid ring pump (e.g. after German patent specification Nr.908658 or USA patent specification Nr.3, 289.918) have large volume, kesse] well-behaved Vorratsund water trap and a radiator designed as wide liquid liquid heat exchanger. This leads zn a relatively large and usually plant which can be operated only stationarily.
The invention is the basis the task to create a particularly compact and also mobilely applicable aggregate which can be operated nevertheless without constant operating liquid supply from the outside.
This task according to invention by the fact it is drawn that elongated trained Umlauf-und separation container on the one hand and are on the other hand oh savings allele arranged the group formed made of pump and engine and that the radiator is provided with an exhaust propelled by the engine.
It was surprisingly shown that the space-saving building method mentioned de Umlauf'behälters serving as separators is possible, without the degree of separation is impaired and without the accordingly decreased volume of the operating level affects unfavorably the pump enterprise, whereby in particular the KühUeistuug improved by the use of an exhaust contributes not only to the decrease of the space requirement of the radiator, but particularly by decrease of the pump-August-lateral Ausdampfverluste to a altogether improved separation, whereby the enterprise with substantially smaller level becomes possible. In practice shown, clal with aggregates, whose axial length as well as height and width are only little larger than from pump and engine, an enterprise has itself practically without each operating liquid consumption possible is, whereby the temperature of the reconducted operating liquid is with the entering the pump only few degrees over the Umgebuugstemperatur.
From the USA patent specification Nr.2, 488.157 a gas pump unit is well-known, with which a coaxial group from pump, engine and exhaust beside a container is arranged already. It concerns however a closed system for the promotion of a gas liquid mixture, whose gas portion is not to be liquefied optimal separation of the promoted gas from carried liquid portions by compression and cooling, since in such a case neither ullages can occur, still another is necessary, is able this publication suggestions in the sense of the invention to give.
In connection with the invention it proves as appropriate to slam shut also the exhaust of the group consisting of pump and engine in the way that it on an end the coaxial group on Motorbzw. Pump wave is arranged. A separate engine exhaust can escape thereby if necessary, since by the radiator] more üfter produced Lnftstrom also the cooling of the engine as well as the pump in sufficient measure anxiously. Also the container and the lines are favorably affected by cooling air.
The invention is described in the following more near with reference to the designs, which a favourable AusführungsbeispieI illustrates schematically. In it show: Fig.1 a side view and a Fig.2 a plan view on the aggregate.
The aggregate is mobile on a basic frame --1-- with wheels --2-- arranged. The aggregate can be enclosed by a housing not shown, which is carried by a housing framework. On the Grnndrahmen is the pump --9-- and the engine --10-- coaxially with shaft coupling --11-- installed.
On the pump-far shaft end of the engine the exhaust sits --12--, the cooling air by the radiator --13-- sucks, which can be trained in the kind of an automobile radiator. Beside pump --9-- and engine --10-- is the elongated implemented tank --14--.
The gas which can be exhausted by the aggregate steps by the connection --15--, Check valve--16-- and intakes --17-- into the pump --9-- , by which in the example it is accepted that she is implemented in two stages with a pipe --18-- to the connection of the two pump stages. The printing connecting piece --19-- the pump is over pipe --20-- with the container --14-- connected, that the promoted gas over the connecting pieces --21-- leaves.
The promotion ways of the gas are also suggested to full-drawn arrows, while the ways of the operating liquid with broken bouncing are suggested. When filling or with necessarily becoming addition operating liquid of a source of liquid steps by the line --22-- over filters --23--, Stop valve --24--, Line --25-- and check valve --26-- into the container --14-- as well as over a branch line --27-- directly into the pump. Hiebei resulting liquid surplus in the container --14-- becomes by the line --28-- exhausted. In normal operation the operating liquid on closed way rotates, u.zw from the container --14-- over the line --29-- to the radiator --13-- and of this over the lines --30, 25 and 27-- to the pump --9--, of where it with the printinglateral gas flow by the pipe --20-- into the container --14-- returns. 1379378 Liquid-ring vacuum pumps SIHI GmbH [trading as SIHI GmbH & CO KG] 9 April 1973 [8 April 1972] 17000/73 Heading F1C A vacuum pump unit comprises a liquid-ring vacuum pump, a drive motor, and a liquid circulating system including an elongated separator container and a radiator for the operating liquid of the pump, the container being arranged parallel to the pump and the motor, and the radiator being cooled by a fan driven by the motor. The unit shown comprises a base frame 1 supported on wheels 2 and carrying a two-stage liquid-ring vacuum pump 9 and its driving motor 10. The gas exhausted by the pump is delivered, together with entrained operating liquid, via a pipe 20 to an elongated separator tank 14, from which the separated gas is discharged at 21. Make-up liquid is conveyed to the tank 14 via a pipe 22, filter 23, solenoid valve 24, pipe 25 and non-return valve 26, any excess being discharged via a pipe 28. The solenoid valve 24 may be controlled by a switch sensing the level or temperature in the tank 14. Liquid is conveyed to the pump 9 via a pipe 27 branching from the pipe 25. The liquid is cooled by circulating it from the tank 14 to the pipe 25 via a pipe 29, a radiator 13 and a pipe 30, a cooling fan 12 for the radiator being driven by the motor 10. The fan 12, which also cools the pump 9 and motor 10, may be located at the other end of the unit. The tank 14 may be located laterally of the pump and motor, as shown, or above or below them. 1, liquid ring vacuum pump for open suction enterprise with coaxially a driving motor arranged in addition and separate Umlaufund separation container as well as a radiator for the circulating operating liquid of the Vakunmpumpe, D A D u r C h g e k e n n z e i C h n e t that elongated trained Umlaufund separation container (14) on the one hand and from pump (9) and engine (10) formed group is on the other hand oh savings allele arranged and that the radiator (13) is provided with a L/fiter (12), propelled by the engine. 2. Liquid ring vacuum pump according to requirement 1, D A D u r C h g e k e n n z e i C h n e t that the L/fiter (12) at an end of the coaxial group on Motorbzw. Pump wave is arranged.