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MVR multi-effect evaporation condensate recycling system

A technology of multi-effect evaporation and condensing water, applied in multi-effect evaporation, heating water/sewage treatment, etc., can solve the problem of ineffective use of energy, save energy and water resources, improve energy utilization, and avoid energy loss wasteful effect

Pending Publication Date: 2020-07-03
华电水务工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature of the condensed water is relatively high. If the condensed water is discharged directly, it will not only make effective use of energy and cause waste, but also the high-temperature condensed water will affect the production environment and even the natural environment. Multi-effect evaporation system to reduce energy loss with high temperature condensed water

Method used

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  • MVR multi-effect evaporation condensate recycling system
  • MVR multi-effect evaporation condensate recycling system
  • MVR multi-effect evaporation condensate recycling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 of the present invention: as figure 1 As shown, a condensed water recycling system of MVR multi-effect evaporation includes a first-effect evaporation group 1, a group of intermediate evaporation groups 2, a tail-effect evaporation group 3, a preheater 4, a steam saturator 5, a condensed water tank 6, Compressor 7, condensate pump 8, raw material liquid pipeline 9, concentrated liquid pipeline 10 and raw steam pipeline 11, the first effect evaporation group 1, the middle effect evaporation group 2 and the tail effect evaporation group 3 are connected in series in sequence, and the raw steam pipeline 11 is connected to the steam saturator 5, and the steam saturator 5 is also connected to the first-effect evaporation group 1 through pipelines. The condensed water produced by the first-effect evaporation group 1 enters the steam saturator 5 through the pipeline and the condensate pump 8, and the middle evaporation group 2 and the tail The condensed water produ...

Embodiment 2

[0024] Embodiment 2 of the present invention: as figure 1 As shown, a condensed water recycling system of MVR multi-effect evaporation includes a first-effect evaporation group 1, a group of intermediate evaporation groups 2, a tail-effect evaporation group 3, a preheater 4, a steam saturator 5, a condensed water tank 6, Compressor 7, condensate pump 8, raw material liquid pipeline 9, concentrated liquid pipeline 10 and raw steam pipeline 11, the first effect evaporation group 1, the middle effect evaporation group 2 and the tail effect evaporation group 3 are connected in series in sequence, and the raw steam pipeline 11 is connected to the steam saturator 5, and the steam saturator 5 is also connected to the first-effect evaporation group 1 through pipelines. The condensed water produced by the first-effect evaporation group 1 enters the steam saturator 5 through the pipeline and the condensate pump 8, and the middle evaporation group 2 and the tail The condensed water produ...

Embodiment 3

[0029] Embodiment 3 of the present invention: as figure 1 As shown, a condensed water recycling system for MVR multi-effect evaporation includes a first-effect evaporation group 1, two intermediate evaporation groups 2, a tail-effect evaporation group 3, a preheater 4, a steam saturator 5, a condensed water tank 6, Compressor 7, condensate pump 8, raw material liquid pipeline 9, concentrated liquid pipeline 10 and raw steam pipeline 11, the first effect evaporation group 1, the two intermediate evaporation groups 2 and the tail effect evaporation group 3 are connected in series in sequence, close to the first effect The middle evaporation group 2 of the evaporation group 1 is the second evaporation group, and the middle evaporation group 2 close to the tail effect evaporation group 3 is the third evaporation group. The raw steam pipeline 11 is connected with the steam saturator 5, and the steam saturator 5 is also passed through The pipeline is connected to the first effect ev...

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Abstract

The invention discloses a MVR multi-effect evaporation condensate recycling system. According to the invention, a live steam pipeline is connected with a steam saturator; the steam saturator is connected with a first-effect evaporation group through a pipeline; condensate generated by the first-effect evaporation group enters the steam saturator through a pipeline; condensate generated by a middle-effect evaporation group and a tail-effect evaporation group respectively enters a condensate tank through pipelines; the condensate tank is connected with a preheater through a pipeline; the preheater is connected with a raw material liquid pipeline and is connected with the first-effect evaporation group through a pipeline; secondary steam generated by the tail-effect evaporation group enters the steam saturator through a pipeline and a compressor; and the tail-effect evaporation group is connected with a concentrated liquid pipeline. The MVR multi-effect evaporation condensate recycling system of the invention can recover condensate generated in a MVR multi-effect evaporation system and reuses the high-temperature condensate in the evaporation system, so energy loss and waste in the high-temperature condensate are avoided, heat in the condensate is effectively utilized, energy consumption and water resources in the evaporation system are saved, and the utilization rate of energy isincreased.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery and utilization, in particular to a condensed water recovery and utilization system of MVR multi-effect evaporation. Background technique [0002] The evaporation process needs to absorb a large amount of heat and generate secondary steam, and the secondary steam contains high latent heat. In order to improve the utilization rate of energy and effectively use the secondary steam, the method of multi-effect evaporation is usually used in actual operation, and the secondary steam of the previous effect is used as the heating steam of the next effect, so as to reduce energy consumption and save resources. [0003] There are three main types of multi-effect evaporation processes, co-current, counter-current and co-current. In the process of material liquid treatment, if it is mainly concentrated, it is mostly used in parallel flow. First, because the vacuum degree increases sequentially, ...

Claims

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Application Information

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IPC IPC(8): C02F1/04B01D1/26
CPCB01D1/26C02F1/04
Inventor 任楠楠刘进李宏秀
Owner 华电水务工程有限公司
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