DE1728399B1 - LIQUID PUMP - Google Patents

Description

(72) is provided for the lubricant, which is

the pinion (64) is in drive connection. table drawings of an embodiment

4. Liquid ring pump according to claim 2 explained in more detail.

or 3, characterized in that in the head part 30 Fig. 1 shows partially in side view and partially (12) on both sides of the recessed chamber j _m longitudinal section a liquid ring pump, the two (56) additional cooling surfaces (88) for the lubricant i _m essentially symmetrically designed and provided unabmittel. pump halves that act depending on one another

grasps;
35 Fig. 2 shows the pump in a section

Line 2-2 in FIG. 1.

The liquid ring pump comprises a cylindrical pump housing 10 with two end-face head

The invention relates to a liquid ring pump share 12, which are formed in a substantially identical manner with an eccentric 40 disposed in the pump housing. The pump shaft 14 is mounted in bearings th impeller and a front end on the pump housing iß, arranged sealed with gland packings 17, which _{carries an inlet channel and unc} j an impeller 18, which has a double outlet channel and is provided with a cover guide and a plurality of j in part defining a lubricant chamber containing a with the circumferential direction successively arranged running \ pump shaft and a splined gear 20 includes wheel cavities with this 45 which encloses drive pinion by thin Trennkämmendes. walls 22 separated from each other and by side parts Such a liquid ring pump with an oil- i _n the form of a radial annular plate 24 and a lubricated and oil-cooled gear transmission is known loading medial partition between the two impeller Reits. To prevent undesired heating of the halves are limited. To avoid the eccentric on-oil in the lubricant chamber, the impeller 18 in the pump housing 10 has its own cooling water circuit for cooling the oil, a sickle-shaped displacement chamber 30 is provided. Such a separate oil cooling, however, leads to additional expenditure during operation from the liquid ring of the pump. is filled.

Accordingly, the invention is based on the object. At each end of the pump there is one in the relevant

in the case of a pump of the aforementioned type, an inlet channel 32 designed for a head part 12 for the Adequate cooling of the liquid lubricant pumping gas is provided and each inlet channel 32 to be achieved without it being a separate one via an inlet line 36 of a stationary, angeord cooling circuit requirement. Neten central channel part 34 with the inner circumference

To solve this problem, the one of the impeller chambers 20 is connected. Every part of the canal Gas stream flowing out of the outlet duct for cooling 60 34 further comprises one of the inlet conduits 36 in the of the lubricant used, and therefore substantially diametrically opposed expressions is the liquid ring pump of the inlet duct 38, which is also attached to the inner circumference named type according to the invention characterized thereby connecting the impeller chambers 20 and to one draws that for cooling the lubricant, the outlet channel 40 leads in the head part 12 to which a Lubricant chamber partially from the wall of the 65 flow channel 41 with a connecting flange 42 The outlet is cooled by the outflowing medium.

channel in the head part is limited. In each head part 12 there is a chamber 56

With this design, a separate cooling system is saved, and the chamber 56 on the left in FIG. 1 is open

a plate 46 covered and closed. A cover plate 58 with a fastening attachment 102 is fastened to the end face of the right head part 12 in order to form a surface for attaching a gear chamber cover 60. In the thereby delimited gear chamber 57, a gear 62 is keyed to the end of the pump shaft 14 by means of a wedge 63. This gear 62 meshes with a drive pinion 64 which is arranged on a pinion shaft 66, mounted in bearings 68 and supported on a support part 70 on the end face of the head part 12. The pinion shaft 66 is provided with a shaft extension 67 which extends to the left into the recessed chamber 56 which, like the left-hand chamber 56, is not closed off by a plate 46. The chamber 56 acts as an oil reservoir for the lubricant present in the gear chamber 57, which is cooled by the thermal contact of the walls of the chamber 56 with the outlet channel 40 and the line 41 through which the relatively cold medium flows continuously during operation. The cooling of the lubricant in the chamber 56 is further improved by an agitator blade 72 arranged on the pinion shaft extension 67, since in this way the lubricant is circulated within the chamber 56 along the cooled walls. Several connecting channels 74 are provided between the chamber 56 and the transmission chamber 57, so that the lubricant cooled in the chamber 56 is circulated to the gear chamber 57 and flows around the support part 70.

According to FIG. 2 approximately triangular surfaces 88 are provided as additional oil cooling surfaces. These are in the head part 12 on both sides of the chamber 56 through sections of the raised head part approach 102 formed. In these sections of the extension 102 are around the opening of the chamber 56 Recessed portions 90 are formed to improve the oil circulation between the chambers 56 and 57. The plate 58 has an enlarged oval opening 100 for direct contact of the oil to effect in the gear chamber 57 with the surfaces 88.

As also from FIG. 2 can be seen, leads the line 41 adjoining the outlet channel 40 a total of three outlets provided with a connecting flange 42, the outlets not required are closed by blind flanges 44.

1 sheet of drawings

Copy ί

Claims (3)

Claims · circuit for the lubricant superfluous. Rather, the generated and absorbed by the lubricant is 1. Liquid ring pump with an eccentric heat taken by the outflowing gas abim Pump housing arranged impeller and guided. This is a warming of the comparative 5 cold outflowing medium arranged at the front on the pump housing without any disadvantage th head part, which has an inlet port and one on the power of the pump. Has outlet channel and expediently with a cover part, the head part comprises a a lubricant chamber forms, one with the saved chamber, which is in communication with the rest Pump shaft keyed gear and a with the lubricant chamber stands, whereby the heat flow meshing drive pinion encloses, da- io transition surface between the lubricant and the characterized in that the head part is enlarged for cooling. This measure leads to of the lubricant the lubricant chamber (56, an improved cooling of the lubricant. 57) partially from the wall of the by the flowing medium cooled outlet duct (40, further improvement of the heat transfer between 41) in the head part (12) is limited. 15 see the lubricant and the head part in the 2. Liquid ring pump according to claim 1, the recessed chamber for a circulation device characterized in that the head part (12) is provided with the lubricant, which with the pinion in recessed chamber (56) which is in communication-drive communication. This way, with Use with the rest of the lubricant chamber (57) to achieve improved heat dissipation with little effort stands, with the heat transfer area reaching between 20 and cooling of the lubricant. the lubricant and the head part is enlarged. Finally, it is also an advantage if in the head 3. A liquid ring pump according to claim 2, data part in both sides of the recessed chamber to-Λ by that to the further comparison additionally cooling surfaces for the lubricant upstream ™ improvement of heat transfer between the are seen. This measure also serves a white lubricant and the head part (12) in the external improvement when dissipating the heat or the saved chamber (56) a circulating device for cooling the lubricant.