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Rotary tube bundle evaporator drainage device

A drainage device and evaporator technology, applied in evaporator accessories, evaporation, chemical instruments and methods, etc., can solve the problems of reduced evaporation water, high investment, and reduced steam condensation heat exchange area, so as to reduce equipment investment and improve evaporation volume effect

Active Publication Date: 2016-08-24
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is water accumulation in the condensed water collection chamber in this patent, such as figure 2 , image 3 As shown, the condensed water collection chamber is provided with a water chamber blocking plate 23 to divide it into multiple regions ( figure 2 There are 4 in the middle), the water condensed by the tube bundle 13 in the area between the water chamber blocking plates 23 enters the hollow shaft through the drain port 24, because the hollow shaft is provided with multiple drain ports (such as figure 2 , image 3 middle drain port 25) to remove the water condensed by the tube bundles in other areas of the condensate collection chamber, the water flowing into the hollow shaft 17 flows back into the condensate collection chamber through the drain port 25, and is not discharged from the system through the hollow shaft 17 in time In addition, only when the water level in the condensate collection chamber is higher than the hollow shaft 17, the condensed water will be discharged through the hollow shaft 17, so the tube bundle below the hollow shaft 17 is filled with water, thereby greatly reducing the steam condensation heat transfer area, unit The amount of evaporated water in the area is greatly reduced, the investment is high, the equipment is large in size, and the operating power is large

Method used

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  • Rotary tube bundle evaporator drainage device
  • Rotary tube bundle evaporator drainage device
  • Rotary tube bundle evaporator drainage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A drainage device for a rotary tube bundle evaporator, including a water chamber side plate 26, a condensate collection chamber end plate 30, a condensate side hollow shaft 17, and a drain pipe 16, and the condensate collection chamber end plate 30 is welded to the condensate side hollow shaft 17 Connected, flanged to the side plate 26 of the water chamber, the side plate 26 of the water chamber is connected to the tube plate 27 by welding, one end of the tube bundle 13 is welded on the tube plate 27, and communicates with the condensate collection chamber 14, and the condensate collection chamber 14 is equipped with water Cavity blocking plate 23 and water collecting plate 15 are welded to the end plate 30 of the condensate collecting chamber and the hollow shaft 17 on the condensate side, and are in close contact with the tube plate 27. The water cavity blocking plate 23 is closely connected to the water cavity side plate 26. Contact connection, the water collecting pl...

Embodiment 2

[0026] A drainage device for implementing the above-mentioned rotary tube bundle evaporator. The difference from Embodiment 1 is that two drainage pipes 16 are arranged on the hollow shaft 17 on the condensate side, and they form a certain angle, generally 90°. They are arranged front and back, which actually divides the tube bundle 13 into four areas. When a certain area is at the top, the condensed water of the tube bundle in this area flows into the hollow shaft 17 on the condensate side through the drain port 28 of the drain pipe 16, and the other areas The water condensed out of the inner tube bundle is temporarily stored in the condensed water collection chamber 14, and this structure is suitable for extra-large blades.

Embodiment 3

[0028] The solution to be evaporated is sent into the evaporator from the dilute solution inlet 10, and the solution is heated by the rotating tube bundle 13 in the evaporator to be evaporated, and the evaporated water vapor is discharged from the steam exhaust port 11, enters the steam compressor 9, and boosts the pressure. The heated water vapor is used as the heat source of the evaporator, and is sent to the hollow shaft 4 on the steam side through the steam inlet 3 of the steam rotary joint 2, enters the steam chamber 8 from the steam chamber inlet 7, and then enters the rotating tube bundle 13, and the steam flows in the tube bundle 13 conducts heat exchange with the solution outside the tube, becomes condensed water and enters the condensed water collection chamber 14 connected with the tube bundle 13, then enters the hollow shaft 17 on the condensed water side through the drain pipe 16, and finally passes through the siphon elbow 19, and the water rotates The joint 18 an...

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PUM

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Abstract

The invention discloses a drainage device for an evaporator of a rotating tube bank. The drainage device comprises a water cavity side plate, a condensate water collection cavity end plate, a condensate water side hollow shaft and a drainage pipe, wherein the condensate water side hollow shaft is connected with a pipe plate; a condensate water collection cavity is internally provided with a water cavity plug board and a water collection plate; the water cavity plug board is respectively connected with the water cavity side plate, the condensate water collection cavity end plate, the condensate water side hollow shaft and the pipe plate; the water collection plate is respectively connected with the condensate water collection cavity end plate, the condensate water side hollow shaft and the pipe plate; the drainage pipe is arranged on the condensate water side hollow shaft between the water cavity plug board and the water collection plate; a middle plug board is arranged in the middle of the drainage pipe; a drain outlet and a lower outlet are respectively formed in the upper part and the lower part of the pipe clinging to the middle plug board; one end of the condensate water side hollow shaft is connected with the pipe plate, and the other end of the condensate water side hollow shaft is connected with a water rotating connector, a siphon elbow and a condensate water outlet. After the drainage device is used, the condensate water in the tube bank can be discharged in time, so that the water evaporation capacity of a unit area can be greatly improved, and the equipment investment, the volume and the operating power are reduced.

Description

technical field [0001] The invention relates to a drainage device for a rotary tube bundle evaporator, which can be used for evaporating salty waste water in chemical production. Background technique [0002] At present, in order to prevent the fouling of waste water on the heat exchange surface of the evaporation device used for salty wastewater in chemical production, a new type of evaporation concentrator (ZL201210285407.4) adopts the rotating motion of the heat exchange tube bundle to make the outer tube and the required The evaporated wastewater has a certain relative speed, and the fouling phenomenon is greatly reduced. Since the wastewater to be evaporated is outside the heat exchange surface, the heat source is inside the heat exchange surface, which solves the problem of the large power and high power consumption of the circulating pump in the commonly used forced circulation evaporator. , blades are easy to wear, the pipeline is long and easy to block, and the heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/30B01D1/00
Inventor 葛仕福
Owner SOUTHEAST UNIV