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Pumping arrangement for household water purifier

A purifier, domestic water technology, applied in the direction of pump device, chemical instrument and method, pump combination for elastic fluid rotary piston type/oscillating piston type, etc., which can solve the problems of complexity, increased cost, cumbersome machining, etc.

Inactive Publication Date: 2005-02-16
多米蒂克器具股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this results in high material costs as well as complex and cumbersome machining, further increasing the cost of this segment

Method used

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  • Pumping arrangement for household water purifier
  • Pumping arrangement for household water purifier

Examples

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Embodiment Construction

[0006] An embodiment of the present invention will be described below with reference to the drawings. The water purifier comprises a central unit having a first part 10 and a second part 11 . The first part 10 is made of plastic and comprises a vane pump 12 and a circulation pump 13 driven by the same shaft 14 . The second part 11 comprises a pressure vessel surrounded by a permeation filter designed as a membrane 15 .

[0007] The impeller pump 12 comprises, in the manner of the prior art, a constructed pump housing 16 which encloses a cylindrical pump chamber in which several vanes can be rotated by the shaft 14 . The shaft is supported concentrically with the pump chamber. The vanes are movable radially and engage the surrounding cylindrical wall of the pump chamber. The substantially cylindrical pump casing 16 and vanes are made of a material such as graphite and are surrounded by a reinforcing liner 17 . The material of the lining is different from that of the first p...

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Abstract

This invention relates to a device for a household water purifier in which raw water is pressurized and is filtered by means of inverted osmosis, ultra or nanofiltration or the like. The device is provided with a central unit having a first part (10) comprising a vane pump (12) with a pump housing (16) and a second part (11) comprising a filter connected to the first part. The first part (10) is shaped of plastic or the like and the pump housing is (16) at least partly surrounded by a liner (17), which consists of a material which differs from the material of the pump housing, and the liner (17) is at least partly surrounded by the first part (10).

Description

technical field [0001] The present invention relates to devices for use in domestic water purifiers in which raw water is pressurized and filtered using reverse osmosis, ultrafiltration or nanofiltration or the like. The device has a central unit comprising a first part comprising the impeller pump and a pump housing and a second part comprising a filter connected to the first part. Background technique [0002] Water purifiers of the above-mentioned type are known from the prior art, for example, from European patent 555621. Incoming raw water is usually pre-filtered using conventional means, such as mechanical filters, carbon filters, UV-light, etc. To achieve water purifier filtration, membranes are used through which the incoming raw water is forced at a pressure of about 10-15 bar. This pressure is generated by the impeller pump, while the particles collected on the membrane are washed away by the circulating water flow. The circulating water flow is generated by a c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/12B01D61/08B01D61/10B01D61/20C02F1/44F04C2/344F04C15/00F04C23/00
CPCB01D61/20F04C2/344B01D61/10F04C23/005
Inventor 弗雷德里克·德尔比安德斯·哈格尔马克
Owner 多米蒂克器具股份公司
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