Main evaporator of low-temperature multi-effect sea water desalinization high-concentration factor combined system

A main evaporator and combined system technology, applied in seawater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problems of seawater waste, concentrated seawater can not fully meet the concentration ratio requirements, etc., and achieve high discharge concentration. , Simple structure, easy to use effect

Inactive Publication Date: 2012-02-01
HARBIN TURBINE AUX EQUIP ENG
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the concentrated seawater desalinated by the existing low-temperature multi-effect seawater desalination system cannot meet the concentration ratio requirements of the downstream industry of seawater desalination, resulting in waste of seawater, and further provide a low-temperature multi-effect seawater Desalination of the main evaporator of the high concentration ratio combined system

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  • Main evaporator of low-temperature multi-effect sea water desalinization high-concentration factor combined system
  • Main evaporator of low-temperature multi-effect sea water desalinization high-concentration factor combined system

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specific Embodiment approach 1

[0013] Specific implementation mode one: combine figure 1 Describe this embodiment. The main evaporator of a low-temperature multi-effect seawater desalination high concentration ratio combined system in this embodiment includes an evaporator feed seawater main pipe 1, an evaporator concentrated brine discharge main pipe 2, and a product water output main pipe 7. , multiple seawater feed connecting pipes 3, multiple concentrated brine discharge connecting pipes 4, multiple sets of seawater evaporators 5 and multiple concentrated brine flow pipes 6, multiple sets of seawater evaporators 5 are connected in series in sequence,

[0014] Each set of seawater evaporators 5 includes a first-effect evaporator 5-1, a final-effect evaporator 5-2, and a plurality of intermediate-effect evaporators 5-3. 5-1, a plurality of intermediate effect evaporators 5-3 and final effect evaporators 5-2 are connected in series sequentially,

[0015] The bottoms and tops of two adjacent intermediate e...

specific Embodiment approach 2

[0020] Specific implementation mode two: combination figure 1 Describe this embodiment, the main evaporator of a low-temperature multi-effect seawater desalination high concentration ratio combined system of this embodiment also includes a plurality of steam pipes 8, the first effect evaporator 5 between each adjacent two groups of seawater evaporators 5 -1 and the final effect evaporator 5-2 are connected through a steam pipeline 8. Such setting facilitates the rapid and stable transmission of steam and avoids the waste of heat. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0021] Specific implementation mode three: combination figure 1 To describe this embodiment, the number of multiple seawater feed connection pipes 3 in this embodiment is consistent with the number of multiple concentrated brine discharge connection pipes 4 . Such setting facilitates the connection of multiple seawater feed connecting pipes 3 and multiple concentrated brine discharge connecting pipes 4 with multiple sets of seawater evaporators 5 . Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

[0022] Specific implementation mode four: combination figure 1 To illustrate this embodiment, the number of multiple groups of seawater evaporators 5 in this embodiment is 3 to 9 groups, each group of seawater evaporators 5 is provided with a first effect evaporator 5-1 for a total of 1 effect, and a final effect evaporator 5-2 for a total of 1 effect. 1 effect, and the intermediate effect evaporator 5-3 has a total of 1 to 4 effects. Such...

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Abstract

The invention discloses a main evaporator of a low-temperature multi-effect sea water desalinization high-concentration factor combined system, which relates to a main evaporator of a combined system. The main evaporator provided by the invention solves the problem that the dense sea water desalinized by the existing low-temperature multi-effect sea water desalinization system cannot meet the requirements on the concentration factor of salt chemical industry of sea water desalinization downstream industry and results in waste of sea water. In the main evaporator, multi-effect sea water evaporators are orderly connected in series, multi-effect intermediate-effect evaporators are orderly connected in series, and first-effect evaporators, the multi-effect intermediate-effect evaporators and tail-effect evaporators are orderly connected in series, an evaporator feeding sea water female pipe is arranged above the multi-effect sea water evaporators, a plurality of sea water feeding connection pipes are horizontally arranged in parallel, the fed sea water is uniformly sprayed on each heat exchange tube of a heat exchange tube bundle through a shower pipe, water films are formed on each heat exchange tube, and an evaporator strong brine discharge female pipe is arranged under the plurality of sea water evaporators. The main evaporator provided by the invention is suitable for the multi-effect sea water desalinization high-concentration factor combined system.

Description

technical field [0001] The invention relates to a main evaporator of a combined system, in particular to a main evaporator of a low-temperature multi-effect seawater desalination high concentration ratio combined system. Background technique [0002] With the environmental protection requirements of "zero discharge" of seawater resources, the concentrated brine of the low-temperature multi-effect seawater desalination system has gradually been fully utilized by the salt chemical industry, truly achieving 100% utilization of seawater. However, the concentration of concentrated seawater after desalination in the existing low-temperature multi-effect seawater desalination system is relatively small, and most of this part of concentrated seawater is directly discharged into the sea, because it cannot meet the concentration ratio requirements of the downstream industry of seawater desalination, resulting in waste of seawater. Contents of the invention [0003] The purpose of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F103/08
Inventor 武君杨镇海郭民姜晓霞董建华王健王琨
Owner HARBIN TURBINE AUX EQUIP ENG
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