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Deamination tower system and deamination method for recovering TVR condensed water

A technology of deamination tower and condensate water, which is applied in separation methods, distillation energy recovery, chemical instruments and methods, etc., can solve the problems of low energy utilization rate and operation limitations, and achieve the effect of improving steam utilization rate.

Pending Publication Date: 2020-08-25
昆山三一环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only one of the above two processes is used in the conventional process, the operation is relatively limited, and the energy utilization rate is not high

Method used

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  • Deamination tower system and deamination method for recovering TVR condensed water

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Effect test

Embodiment 1

[0023] Such as figure 1 As shown, this embodiment provides a deammonization tower system for TVR condensate recovery, including a rectification tower 1, a reboiler 2, a flash tank 3, a jet heat pump 4 and a fresh steam pipeline 8; the rectification tower 1 The pipeline of the tower kettle is connected with a reboiler 2, the condensed water outlet of the shell side of the reboiler 2 is connected with the pipeline of the flash tank 3, and the fresh steam inlet of the shell side is connected with the first branch of the fresh steam pipeline 8; The steam outlet at the top of the steamer 3 is connected to the low-pressure steam inlet pipeline of the jet heat pump 4, the high-pressure steam inlet of the jet heat pump 4 is connected to the second branch of the fresh steam pipeline 8, and the medium-pressure steam outlet of the jet heat pump 4 It is connected with the still pipe of rectification tower 1; a first valve 6 is set on the first branch, and a second valve 5 is set on the se...

Embodiment 2

[0027] This embodiment provides the deammonization tower system adopting the TVR condensed water recovery of the above embodiment 1, and the deammonization method for ternary waste water:

[0028] Including tower kettle reboiler type and stripping type:

[0029] The tower kettle reboiler type includes the following steps: close the second valve 5 and the third valve 7, open the first valve 6; the preheated ternary mother liquor enters the rectification section of the rectification tower 1, and the 0.5-0.6Mpa The fresh steam enters the shell side of the reboiler 2 for energy supply, and the fresh steam turns into condensed water after heat exchange in the reboiler 2, and the condensed water enters the flash tank 3 for standby; Enter the follow-up section for the next step of zero-emission treatment; the material at the top of the rectification tower 1 is processed in the next section, and the product extracted from the top of the tower is recovered.

[0030] The air lift type ...

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Abstract

The invention discloses a deamination tower system and a deamination method for recovering TVR condensed water. The deamination tower system comprises a rectifying tower, a reboiler, a flash tank, a jet heat pump and a fresh steam pipeline, wherein a rectifying tower bottom pipeline is connected with the reboiler, a condensed water outlet of a shell pass of the reboiler is connected with a flash tank pipeline, and a fresh steam inlet of the shell pass is connected with a first branch of the fresh steam pipeline; and a steam outlet in the top of the flash tank is connected with a low-pressure steam inlet pipeline of the jet heat pump, a high-pressure steam inlet of the jet heat pump is connected with a second branch of the fresh steam pipeline, and a medium-pressure steam outlet of the jetheat pump is connected with the rectifying tower bottom pipeline. Fresh steam and secondary steam are mixed to serve as a gas stripping deamination heat source by coupling the jet heat pump and a deamination tower; through valve switching, switching between a reboiler type deamination mode and a gas stripping type deamination mode is realized; and condensate water at the shell pass of the reboilerpasses through the flash tank, so a steam utilization rate is further increased, efficient utilization of energy is achieved, and the convenience of system operation is improved.

Description

technical field [0001] The invention relates to the technical field of deammonization of waste water, in particular to a deammonization tower system and a deammonization method for recovering TVR condensed water. Background technique [0002] It is common for coking, pesticide, fertilizer, chemical, coal chemical and other industrial enterprises in China to discharge high-concentration and ultra-high-concentration ammonia-nitrogen wastewater. Due to the problems in the production process and production management of these enterprises, a large amount of high-ammonia nitrogen production wastewater has been generated. emissions. A large amount of ammonia nitrogen discharged into the water body will lead to eutrophication of the water body, which will cause serious pollution of rivers and lakes. It not only directly affects the living environment of people, but also causes huge losses to the national economy. For urban sewage treatment plants, high The discharge of ammonia nitr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/00B01D3/14B01D3/32B01D3/06C02F1/04C02F101/16
CPCB01D3/007B01D3/143B01D3/322B01D3/06C02F1/043C02F2101/16
Inventor 朱碧云李静罗鹏
Owner 昆山三一环保科技有限公司
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