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Centrifugal pumps for conveying heat media

A centrifugal pump, heat medium technology, used in parts of pumping devices for elastic fluids, pumps for special fluids, pumps, etc.

Active Publication Date: 2021-03-09
KSB AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Slide ring seals as well as axial bearings are wearing parts that must be replaced frequently

Method used

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  • Centrifugal pumps for conveying heat media
  • Centrifugal pumps for conveying heat media
  • Centrifugal pumps for conveying heat media

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1 A centrifugal pump with a pump housing 1 is shown for conveying a heat medium. The pump housing 1 includes a screw housing 2 and a housing cover 3 . A housing assembly 4 for heat removal is connected to the pump housing 1 . The housing assembly 4 is equipped with cooling ribs 5 . The housing assembly 4 forms a spacer section which acts as a thermal barrier for the temperature drop from the hot pump housing 1 up to the shaft exit 6 . At the shaft exit 6, the shaft 7 is provided with a coupling end 8 for the drive.

[0035] figure 2 shown through the figure 1 A cross-sectional view of a centrifugal pump shown in . Here, the section passes through the figure 1 Cooling ribs 5 shown in .

[0036] An impeller 9 is arranged in the pump housing 1 , which is fastened to the shaft 7 in a rotationally fixed manner. The housing assembly 4 is directly connected to the housing cover 3 of the pump housing 1 . A bearing 10 is arranged on the impeller side between th...

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Abstract

The invention relates to a centrifugal pump for conveying heat medium. The centrifugal pump comprises at least one impeller (9), which is arranged in the pump housing (1). The impeller (9) is set in rotation by the drive part via the shaft (7). A housing assembly (4) for heat removal is coupled to the pump housing (1). The shaft (7) is provided with a sliding seal assembly (16). Furthermore, the shaft (7) is supported by at least one bearing (10, 25). According to the invention, the centrifugal pump comprises a compact module (15), which is implemented as an assembly unit. The module (15) includes at least one slide ring seal assembly (26) and at least one support (25).

Description

technical field [0001] The invention relates to a centrifugal pump (Kreiselpumpe, sometimes called a gyroscopic pump) for conveying a heat medium with at least one impeller, which is arranged in a pump housing and is connected to a drive via a shaft, wherein, A housing assembly for heat removal is coupled to the pump housing, and the shaft is provided with at least one slip ring seal and at least one bearing. Background technique [0002] Such pumps are also known as hot water or heat carrier pumps. It is used, for example, in heating systems for tumbling hot water or heat carriers. Since the temperature of the heat carrier oil can be up to 400° C., the temperature must be reduced to such an extent that the medium-lubricated bearings are brought down by a special housing assembly for heat removal, which is arranged between the pump housing and the shaft seal. Or slip ring seals can be used. [0003] Since in the case of transporting hot water and heat carriers, the therma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/046F04D29/12F04D29/62
CPCF04D29/0462F04D29/126F04D29/628F04D7/06
Inventor H.魏斯纳R.恩斯
Owner KSB AG