Multi-effect distillation process driven by regenerative heat of condensing steam source heat pump

A multi-effect distillation, source heat pump technology, applied in heat pump, fractional distillation, high-efficiency regulation technology, etc.

Inactive Publication Date: 2016-12-07
侴乔力 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] (3) The power consumption reaches 7~15kW*h / t, and the water production cost reaches ￥20~30 / t

Method used

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  • Multi-effect distillation process driven by regenerative heat of condensing steam source heat pump

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Embodiment Construction

[0056] The embodiment of the multi-effect distillation process driven by the condensing source heat pump heat recovery proposed by the present invention is attached figure 1 As shown, the description is as follows: It is a rising film evaporator 1 with 4050kW of heat obtained by evaporation, installed vertically, and made of carbon steel with a siphon circulation in the tube and a countercurrent heat extraction; a stainless steel tube with a diameter of 200mm / wall thickness of 2.5mm has a condensing steam inlet 1-1; Cylindrical separation chamber 1-2 with a diameter of 1200mm / height 250mm; a ring with a diameter of 1200mm / height of 2000mm / diameter of 19mm distributed vertical siphon heat pipe clusters 1-3; a cylindrical shunt chamber with a diameter of 1200mm / height 250mm 1-4 ; condensate outlet 1-5 of stainless steel tube with diameter 40mm / wall thickness 1.5mm / length 60mm; copper tube liquid heat pump inlet 1-6 with diameter 60mm / wall thickness 1.5mm / length 60mm; diameter 120...

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Abstract

The invention relates to a multi-effect distillation process driven by the regenerative heat of a condensing steam source heat pump. The multi-effect distillation process is trans-boundary product of the condensing steam source heat pump industry and the multi-effect distillation industry and is characterized in that the evaporator of the condensing steam source heat pump is used to extract the secondary steam condensation latent heat and condensation fresh water sensible heat distilled by the end-effect evaporator of the multi-effect distillation process; low-pressure steam is prepared directly b using the condenser of the condensing steam source heat pump, and the low-pressure steam is injected by high-pressure steam through a thermal compression type steam-steam injector and delivered to a first-effect evaporator to serve as the heating source of the process. The multi-effect distillation process has the advantages that the condensing steam source heat pump is used to comprehensively recycle the steam condensation latent heat and the fresh water sensible heat emitted to environments by the end-effect evaporator, the multi-effect distillation process is driven by the recycled heat, and 1/2-5/6 of drive steam is saved.

Description

(1) Technical field [0001] The invention relates to a multi-effect distillation process driven by heat recovery of a condensing steam source heat pump used in seawater desalination, food processing, beverage production, sewage treatment, water purification treatment, reclaimed water treatment and chemical industry. (2) Background technology [0002] Multi-effect distillation process: consists of multiple groups of evaporators D n and its preheater E n , connected in series through multiple process connection points to form a multi-effect distillation process, only the first effect evaporator D 1 and its preheater E 1 Input heating water vapor, and recover condensed fresh water; every effect from now on, the effect evaporator D n-1 When preheating and supplementing seawater or spraying circulating brine, the pre-effect condensation latent heat is recovered and the secondary steam of this effect is distilled, and introduced into the after-effect evaporator D n and its preh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/14C02F1/04F25B30/02F25B41/06C02F103/08F25B41/31
CPCB01D3/14F25B30/02C02F1/045C02F1/048C02F2103/08F25B41/31Y02B30/70
Inventor 侴乔力陈江侴雨宏魏蔚
Owner 侴乔力
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