CN203329389U - Device for improving water quality of live steam condensate water of evaporation process - Google Patents
Device for improving water quality of live steam condensate water of evaporation process Download PDFInfo
- Publication number
- CN203329389U CN203329389U CN2013203730702U CN201320373070U CN203329389U CN 203329389 U CN203329389 U CN 203329389U CN 2013203730702 U CN2013203730702 U CN 2013203730702U CN 201320373070 U CN201320373070 U CN 201320373070U CN 203329389 U CN203329389 U CN 203329389U
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- live steam
- condensed water
- steam condensed
- heat exchange
- condensate water
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to the technical field of aluminum oxide production, and particularly relates to a device for improving the water quality of the live steam condensate water of an evaporation process. In the device for improving the water quality of the live steam condensate water of an evaporation process, the live steam condensate water of the evaporation process is fed into indirect heat exchange equipment through a live steam condensate water pipe and performs indirect countercurrent heat exchange with the low-temperature single evaporation liquid fed into the indirect heat exchange equipment by a low-temperature single evaporation liquid pipe; the heated single evaporation liquid enters a secondary last-effect evaporator through the heated single evaporation liquid pipe; and after being cooled, the live steam condensate water is fed to subsequent process through the self-pressure of the cooled live steam condensate water pipe. The device provided by the utility model has the advantages and effects that the live steam condensate water can be prevented from being polluted by alkaline water, and the utilization rate of the heat energy of the condensate water is improved; and meanwhile, the indirect heat exchange equipment such as a sleeve heat exchanger or a plate-type heat exchanger is used for replacing a self-evaporator so as to reduce the equipment investment in the process and the operation intensity of the equipment.
Description
Technical field
The utility model relates to a kind of technical field of alumina production that belongs to, and relates in particular to the device that improves evaporization process live steam condensed water water quality in a kind of aluminum oxide production process.
Background technology
In the process of alumina producing, the live steam condensed water of evaporization process continues to utilize heat energy wherein after usually adopting the method for Multi-stage flash steaming pot flash distillation that condensed water is become to steam, and using condensed water flash vapour with enter the next stage evaporimeter as thermal source after the secondary vapour of upper level evaporimeter mixes and carry out evaporation operation, during the band alkali condensate liquid carried in secondary vapour in this operating process may be sneaked into live steam condensed water, thereby cause live steam condensed water basicity to exceed standard, subsequent handling continues after can only processing to use again, in former method of while, the live steam condensed water discharge temperature is 72 ℃ of left and right, discharge after the water yield is also processed with flash distillation and reduce gradually.The utility model not only can improve live steam condensed water water quality, avoids alkali pollution, can reduce the discharge temperature to 68 of condensed water～70 ℃ simultaneously, has improved the utilization rate of heat energy.
Summary of the invention
Provide a kind of device that improves evaporization process live steam condensed water water quality for solving the problems of the technologies described above the utility model, purpose is: avoid live steam condensed water polluted by buck, improve the heat utilization rate of condensed water simultaneously.
For reaching above purpose, the utility model is achieved in that the device that improves evaporization process live steam condensed water water quality, the live steam condensed water of evaporization process is accessed to indirect heat exchange equipment by the live steam condensed water pipe, the low-temperature primary evaporated liquor of delivering to indirect heat exchange equipment with low-temperature primary evaporated liquor pipe carries out indirect countercurrent flow, flush distillation liquid after heating enters time last evaporator by the flush distillation liquid pipe after heating, and after cooling, the live steam condensed water pipe self-pressure of live steam condensed water after cooling is sent to subsequent handling.
Indirect heat exchange equipment is connected with last evaporator by low-temperature primary evaporated liquor pipe.
Last evaporator is connected with the vaporizing raw liquor pipe.
Inferior last evaporator is delivered to double evaporation-cooling liquid pipe by the flush distillation liquid after heating.
Indirect heat exchange equipment is double-tube heat exchanger or plate type heat exchanger.
Advantage of the present utility model and effect are as follows:
The utility model not only can avoid live steam condensed water to be subject to buck to pollute, improve the heat utilization rate of condensed water, replace flash-pot with indirect heat exchange equipment such as double-tube heat exchanger or plate type heat exchangers simultaneously, thereby reduce the equipment investment of this in-process and the manipulation strength of equipment.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, indirect heat exchange equipment; 2, last evaporator; 3, inferior last evaporator; 4, live steam condensed water pipe; 5, the live steam condensed water pipe after the cooling; 6, vaporizing raw liquor pipe; 7, low-temperature primary evaporated liquor pipe; 8, the flush distillation liquid pipe after the heating; 9, double evaporation-cooling liquid.
The specific embodiment
Below the present embodiment is described in detail by reference to the accompanying drawings, but protection domain of the present utility model is not limit by embodiment.
The utility model improves the device of evaporization process live steam condensed water water quality as shown in Figure 1, the live steam condensed water of evaporization process is accessed to indirect heat exchange equipment 1 by live steam condensed water pipe 4, the low-temperature primary evaporated liquor of delivering to indirect heat exchange equipment 1 with low-temperature primary evaporated liquor pipe 7 carries out indirect countercurrent flow, flush distillation liquid after heating enters time last evaporator 3 by the flush distillation liquid pipe 8 after heating, and after cooling, live steam condensed water pipe 5 self-pressures of live steam condensed water after cooling are sent to subsequent handling.
Indirect heat exchange equipment 1 is connected with last evaporator 2 by low-temperature primary evaporated liquor pipe 7.
Last evaporator 2 is connected with vaporizing raw liquor pipe 6.
Inferior last evaporator 3 is delivered to double evaporation-cooling liquid pipe 9 by the flush distillation liquid after heating.
Indirect heat exchange equipment 1 is double-tube heat exchanger or plate type heat exchanger.
The utility model can be cooled to 68～70 ℃ by 158 ℃ by live steam condensed water, improve the utilization rate of heat energy, by the indirect heat exchange mode, avoided live steam condensed water to be subject to the pollution of alkaline steam simultaneously, improve the water quality of condensed water, be convenient to the use of subsequent handling.Outlet temperature after the live steam condensed water heat exchange is higher 5～8 ℃ than flush distillation liquid drop temperature.
Claims (5)
1. improve the device of evaporization process live steam condensed water water quality, it is characterized in that the live steam condensed water of evaporization process by live steam condensed water pipe access indirect heat exchange equipment, the low-temperature primary evaporated liquor of delivering to indirect heat exchange equipment with low-temperature primary evaporated liquor pipe carries out indirect countercurrent flow, flush distillation liquid after heating enters time last evaporator by the flush distillation liquid pipe after heating, and after cooling, the live steam condensed water pipe self-pressure of live steam condensed water after cooling is sent to subsequent handling.
2. the device of raising evaporization process live steam condensed water water quality according to claim 1, is characterized in that indirect heat exchange equipment is connected with last evaporator by low-temperature primary evaporated liquor pipe.
3. the device of raising evaporization process live steam condensed water water quality according to claim 2, is characterized in that last evaporator is connected with the vaporizing raw liquor pipe.
4. the device of raising evaporization process live steam condensed water water quality according to claim 1, is characterized in that time last evaporator delivers to double evaporation-cooling liquid pipe by the flush distillation liquid after heating.
5. the device of raising evaporization process live steam condensed water water quality according to claim 1, is characterized in that indirect heat exchange equipment is double-tube heat exchanger or plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203730702U CN203329389U (en) | 2013-06-27 | 2013-06-27 | Device for improving water quality of live steam condensate water of evaporation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203730702U CN203329389U (en) | 2013-06-27 | 2013-06-27 | Device for improving water quality of live steam condensate water of evaporation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203329389U true CN203329389U (en) | 2013-12-11 |
Family
ID=49698090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203730702U Expired - Lifetime CN203329389U (en) | 2013-06-27 | 2013-06-27 | Device for improving water quality of live steam condensate water of evaporation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203329389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779008A (en) * | 2018-07-31 | 2020-02-11 | 沈阳铝镁设计研究院有限公司 | Water returning device and method for high-temperature fresh steam condensate water of alumina plant |
-
2013
- 2013-06-27 CN CN2013203730702U patent/CN203329389U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779008A (en) * | 2018-07-31 | 2020-02-11 | 沈阳铝镁设计研究院有限公司 | Water returning device and method for high-temperature fresh steam condensate water of alumina plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |