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Multi-tube-bundle arrangement structure of low-temperature multi-effect sea water desalination evaporator

A technology for arranging structure and evaporator, which is applied in the field of low-temperature multi-effect distillation seawater desalination, can solve the problems such as secondary steam cannot flow normally, and increase the manufacturing cost of device materials, so as to make full use of internal space, reduce processing and manufacturing costs, and reduce procurement. cost effect

Inactive Publication Date: 2014-03-19
SHANGHAI POWER STATION ACCESSORY MACHINERY PLANT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that when the existing single-tube-bundle evaporator structure is used in a large-scale low-temperature multi-effect distillation seawater desalination device, it will cause problems such as the failure of the secondary steam between the tube bundles to flow normally and the increase in device materials and manufacturing costs.

Method used

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  • Multi-tube-bundle arrangement structure of low-temperature multi-effect sea water desalination evaporator
  • Multi-tube-bundle arrangement structure of low-temperature multi-effect sea water desalination evaporator
  • Multi-tube-bundle arrangement structure of low-temperature multi-effect sea water desalination evaporator

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Embodiment 1

[0024] Such as Figure 1-2 As shown, it is a structural schematic diagram of the arrangement structure of four tube bundles of a low-temperature multi-effect seawater desalination evaporator, including a cubic shell 5, inside the shell 5 there are four sets of tube bundles 1 connected in parallel, inside the tube bundle 1 there are partitions and supporting structures 4 ; The separator and support structure 4 is composed of 4 support plates evenly distributed between the front tube plate 3-1 and the rear tube plate 3-2. Each group of tube bundles 1 is installed with two independent spraying devices 7 in parallel, and the spraying devices 7 are used for distributing liquid outside the heat exchange tubes. Front and rear tube sheets 3-1 and rear tube sheets 3-2 are respectively provided on the front and rear sides of each group of tube bundles 1 . Between the adjacent two groups of tube bundles 1 and between the outermost tube bundle 1 and the shell 5, front and rear tube sheet...

Embodiment 2

[0026] Such as Figure 3-4 As shown, it is a structural schematic diagram of the double-tube bundle arrangement structure of the low-temperature multi-effect seawater desalination evaporator. The evaporator is a cylindrical shell 5, and the shell 5 is provided with two sets of tube bundles 1, and the tube bundle 1 is provided with a partition and a supporting structure 4 ; The separator and support structure 4 is composed of 3 support plates evenly distributed between the front tube plate 3-1 and the rear tube plate 3-2. Each group of tube bundles 1 is provided with an independent spray device 7 to distribute liquid outside the tubes of the heat exchange tubes. Front and rear tube sheets 3-1 and rear tube sheets 3-2 are respectively provided on the front and rear sides of each group of tube bundles 1 . The front tube sheet 3-1 and the rear tube sheet 3-2 are fixed by the front tube sheet sealing plate 2-1, the rear tube sheet sealing plate 2-2 and the shell 5. A steam circul...

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Abstract

The invention discloses a multi-tube-bundle arrangement structure of a low-temperature multi-effect sea water desalination evaporator. The multi-tube-bundle arrangement structure is characterized by comprising a shell, wherein at least two groups of tube bundles which are connected in parallel are arranged in the shell; a front tube plate and a rear tube plate are arranged on the front and rear sides of each group of tube bundles respectively; a front tube plate sealing plate and a rear tube plate sealing plate are arranged on the front and rear sides of two adjacent groups of tube bundles and the front and rear sides of the outermost tube bundle and the shell respectively. According to a single-effect evaporator, a plurality of groups of tube bundles are arranged and are supported in the shell through front / rear tube plate sealing plates, front / rear tube plates, separation plates, supporting plates and the like. Each group of tube bundles is provided with an independent spraying system, a corresponding steam channel is reserved between two adjacent tube bundle groups, and a flow guide plate and a screen demisting device are adopted for performing saline water droplet separation on secondary steam. By virtue of multi-tube-bundle arrangement in the evaporator, a low-temperature multi-effect distillation sea water desalination device is large-sized.

Description

technical field [0001] The invention relates to a multi-tube bundle arrangement structure of a low-temperature multi-effect distillation seawater desalination evaporator, belonging to the technical field of low-temperature multi-effect distillation seawater desalination. Background technique [0002] Judging from the current economic and technical conditions and the supply and demand of water resources, for coastal economically developed areas, developing seawater desalination technology and asking for fresh water from the ocean is an effective way for coastal countries and regions to solve the contradiction between supply and demand of fresh water resources, and it is also an effective way for coastal cities to solve the fresh water crisis. The inevitable trend. [0003] In the last ten years, with the advancement of technology and the increase of unit scale, low-temperature multi-effect distillation seawater desalination devices have entered a stage of rapid development. ...

Claims

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Application Information

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IPC IPC(8): C02F1/04C02F103/08
CPCY02A20/124
Inventor 樊智锋李海红班陟逊陈亮
Owner SHANGHAI POWER STATION ACCESSORY MACHINERY PLANT CO LTD
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