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Apparatus to concentrate a fluid and a multiple chamber pump

A differential piston, concentrating device technology, applied in piston pump, liquid variable capacity machinery, pump and other directions, can solve the problems of pulsation, power loss, increase in structure size of differential piston pump, etc. Noise or vibration, little effect of wear

Inactive Publication Date: 2008-08-06
西尼卡股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Unnecessary loss of power due to the ramping nature of the spring force
The crankshaft-connecting rod arrangement not only leads to an increase in the structural size of the differential piston pump, but under certain conditions, for example due to the connecting rod rotation, it can produce discordant piston stroke movements, resulting in further power losses, and in the pumped cause pulsation in the liquid

Method used

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  • Apparatus to concentrate a fluid and a multiple chamber pump
  • Apparatus to concentrate a fluid and a multiple chamber pump
  • Apparatus to concentrate a fluid and a multiple chamber pump

Examples

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Embodiment Construction

[0038] Figure 1 is used, for example, to form a pure liquid F at the same time R concentrating liquid F into a concentrate or concentrate F in case of K The device V can be a seawater desalination device working on the principle of reverse osmosis, or a device for concentrating fruit juice, etc. In principle, it is provided in the installation V that the liquid F is conveyed by means of a radial piston pump R and is brought under pressure, and is guided through a concentrating device 3 from which a concentrated liquid F with a significant residual pressure is produced K , and the pure liquid F R There is essentially no pressure and it can be collected, for example, as pure desalinated water. Concentrate F with significant residual pressure K Used in the radial piston pump R, the contained energy is used to directly support the conveying liquid F, so that the radial piston pump R can be operated only by consuming less primary energy (such as current or the power of the motor...

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PUM

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Abstract

Disclosed is a device (V) for concentrating a liquid (F) which is pumped through a concentrating apparatus (3) by means of a differential piston pump and directly impinges the differential piston (K) in an assisting manner during the conveying stroke at a residual pressure as a concentrate (FK). The differential piston of said device (V) is driven by a drive shaft (12) that actuates a linearly guided valve control member (18) of an intake and discharge valve assembly (A). The differential piston pump is embodied as a radial piston pump (R) in which eccentric attachments (13, 14) for the differential piston (K) and the valve control member (18) are disposed on the drive shaft (12), the differential piston (K) and the valve control member (18) being hinged directly to the eccentric attachments (13, 14) by means of traction and pressure couplings (S).

Description

technical field [0001] The invention relates to a device of the type stated in the preamble of claim 1 and to a differential piston pump according to the preamble of claim 2 . Background technique [0002] When concentrating liquids, for example in seawater desalination (reverse osmosis) or fruit juice production, depending on the process, a lot of primary energy is used to pump the liquid, simultaneously producing a concentrate with a relatively high residual pressure. Especially in the desalination process the high primary energy demand is a long-standing known disadvantage, for example energy costs have been reduced in the past by utilizing the energy contained in the concentrate due to the residual pressure for the Auxiliary differential piston pump during delivery stroke, thus saving primary energy. [0003] In the desalination plant known from EP 0 450 257 B1 and in the differential piston pump shown in EP 0 450 257 B1 ( FIG. 5 ), the differential piston is moved away...

Claims

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Application Information

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IPC IPC(8): F04B5/00F04B7/00F04B9/10
CPCF04B5/00F04B7/00F04B9/042F04B9/107
Inventor P-B·卡特曼
Owner 西尼卡股份有限公司
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