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Combination method of circular low-temperature multi-effect seawater desalination evaporators

An evaporator and circular technology, which is applied in the field of pairing of circular low-temperature multi-effect seawater desalination evaporators, can solve the problems of length change of support rods, concentration of evaporator equipment, affecting the welding quality of evaporator welds, etc. Select, ensure welding quality, and improve the effect of local stress

Active Publication Date: 2021-11-09
中国电建集团河北工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, when the roundness of the circular evaporator is desalinated by seawater, multiple support rods of the same length are often used to simultaneously tighten the inside of the evaporator to adjust the roundness of the evaporator. The following defects exist in use: 1. The length of the support rods cannot be adjusted according to the The different diameters of the evaporator can be changed, so this kind of support rod can only be used to adjust the circular evaporator of a single type; When the temperature is high, it is easy to make the evaporator equipment too concentrated locally, which will affect the welding quality of the evaporator weld

Method used

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  • Combination method of circular low-temperature multi-effect seawater desalination evaporators
  • Combination method of circular low-temperature multi-effect seawater desalination evaporators
  • Combination method of circular low-temperature multi-effect seawater desalination evaporators

Examples

Experimental program
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Effect test

Embodiment 1

[0079] Example 1 A low-temperature multi-effect seawater desalination evaporator pairing device

[0080] In this embodiment, the telescopic part expands and contracts along the axial direction of the adjustable support rod 2, so that the telescopic part and the fixed support rod 1 exert force on the evaporator to adjust the roundness of the circular evaporator or the flatness of the square evaporator. Such as figure 1 As shown, this embodiment includes a fixed support rod 1 , an adjustable support rod 2 and a telescopic part arranged in sequence from left to right.

[0081] 1. Telescopic part

[0082] The telescopic part is used to adjust the telescopic length of the low-temperature multi-effect seawater desalination evaporator pair device. The telescoping part is adopted to be able to expand and contract along the axis direction of the adjustable support rod 2 . The telescoping part can adopt air cylinder, electric cylinder and hydraulic cylinder. In this embodiment, the ...

Embodiment 2

[0089] Example 2 A pairing method of circular low-temperature multi-effect seawater desalination evaporators

[0090] In this embodiment, the low-temperature multi-effect seawater desalination evaporator pairing device in Embodiment 1 is used to adjust the roundness of the first circular evaporator. The pairing method of the circular low-temperature multi-effect seawater desalination evaporator comprises the following steps:

[0091] Step 1: Select the adjustable support rod 2 whose length matches the diameter of the first circular evaporator and fix it between the fixed support rod 1 and the telescopic part, that is, make the adjustable support rod 2 fixedly connected to the fixed support rod 2 through the flange 4 Between the support rod 1 and the jack 3.

[0092] Step 2: The lower half circle of the first circular evaporator is welded to the lower half circle of the second circular evaporator

[0093] Step (1): Shorten the telescopic part so that the extended length of th...

Embodiment 3

[0102] Example 3 A pairing method of circular low-temperature multi-effect seawater desalination evaporators

[0103] This embodiment also uses the low-temperature multi-effect seawater desalination evaporator pairing device in embodiment 1 to adjust the roundness of the first circular evaporator. For ease of use and quick operation, this implementation is further specified on the basis of Example 2:

[0104] Step 0: Mark the outside perimeter of the round evaporator (can be used as a preparatory step)

[0105] Step (1): Marking points A(0),……,A(n-1), A(n), B(0),……,B are evenly spaced clockwise along the outer circumference of the first circular evaporator (n-1), B(n), and the connection between A(0) and B(0), ..., the connection between A(n-1) and B(n-1), A(n) and The connecting line of B(n) is the diameter of the first circular evaporator, wherein, n≥2.

[0106] In this embodiment, n=9. Mark points A(0), A(1), A(2), A(3), A(4), A(5), A(6) are evenly spaced clockwise alon...

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Abstract

The invention discloses a pairing method of a circular low-temperature multi-effect seawater desalination evaporator, which includes the following steps: Step 1: Select an adjustable support rod whose diameter is suitable for the first circular evaporator and connect it to the fixed support rod Between the telescopic part; Step 2: The lower half circle of the first circular evaporator is welded to the lower half circle of the second circular evaporator; Step 3: The upper half circle of the first circular evaporator is welded to the upper half circle of the second circular evaporator connected. The invention can evenly disperse the welding stress on the evaporator and ensure the welding quality. The invention is suitable for circular evaporators and used for butt welding.

Description

technical field [0001] The invention belongs to the technical field of equipment assembly, and relates to the paired installation of seawater desalination multi-effect evaporators, in particular to a pairing method of circular low-temperature multi-effect seawater desalination evaporators. Background technique [0002] Water is the source of life and the artery of social and economic development. Although 70% of the earth is covered by water, the fresh water that people depend on for survival accounts for only 2.5% to 3% of the total water volume. In view of the fact that 70% of human beings live less than 120 kilometers away from the sea, the vast sea is used as a source of fresh water, and desalination of seawater is a powerful supplementary measure to the existing water source, which can meet people's domestic water needs under certain conditions. The current seawater desalination distillation methods mainly include low-temperature multi-effect and multi-stage flash dist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04C02F1/04C02F103/08
CPCC02F1/04C02F1/043C02F2103/08C02F2303/14Y02A20/124
Inventor 陈志华李晓辉陈庆华任坤坤
Owner 中国电建集团河北工程有限公司
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