CN223033155U - Multi-effect evaporator for desulfurization wastewater treatment - Google Patents
Multi-effect evaporator for desulfurization wastewater treatment Download PDFInfo
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- CN223033155U CN223033155U CN202422049728.5U CN202422049728U CN223033155U CN 223033155 U CN223033155 U CN 223033155U CN 202422049728 U CN202422049728 U CN 202422049728U CN 223033155 U CN223033155 U CN 223033155U
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Abstract
本实用新型公开了一种用于脱硫废水处理的多效蒸发器，包括一级蒸发罐，一级蒸发罐旁侧设有二级蒸发罐、三级蒸发罐，所述一级蒸发罐前端设有加热罐，加热罐内设有冷水，所述加热罐上设有出气口，出气口连接于第一蒸汽进口，加热罐外侧设有夹层，夹层内流动进入脱硫塔的烟气，三级蒸发罐上的蒸汽出口连接水池，水池用于脱硫浆液的制备。本实用新型利用高温烟气对水加热形成蒸汽用于蒸发罐，并将经过蒸发罐的蒸汽用于脱硫浆液的制备，实现了高温烟气的热量利用，同时也减少脱硫浆液的加热时间以及能源，提高整体的能效。
The utility model discloses a multi-effect evaporator for desulfurization wastewater treatment, including a primary evaporation tank, a secondary evaporation tank and a tertiary evaporation tank are arranged beside the primary evaporation tank, a heating tank is arranged at the front end of the primary evaporation tank, cold water is arranged in the heating tank, an air outlet is arranged on the heating tank, the air outlet is connected to a first steam inlet, an interlayer is arranged on the outer side of the heating tank, flue gas flows into the interlayer and enters the desulfurization tower, and the steam outlet on the tertiary evaporation tank is connected to a water pool, and the water pool is used for the preparation of desulfurization slurry. The utility model utilizes high-temperature flue gas to heat water to form steam for the evaporation tank, and uses the steam passing through the evaporation tank for the preparation of desulfurization slurry, realizing the heat utilization of high-temperature flue gas, while also reducing the heating time and energy of the desulfurization slurry, and improving the overall energy efficiency.
Description
Technical Field
The utility model relates to the technical field of desulfurization wastewater, in particular to a multi-effect evaporator for desulfurization wastewater treatment.
Background
The wet desulfurization is one of common flue gas desulfurization modes, the purpose of flue gas desulfurization is achieved by spraying flue gas with desulfurization slurry, desulfurization waste water is formed after the desulfurization slurry is sprayed and needs further treatment, a multi-effect evaporator is one of common treatment equipment, the desulfurization waste water is placed in an evaporation tank, steam is heated and concentrated, then enters a secondary evaporation tank and a tertiary evaporation tank to carry out two-effect and three-effect evaporation, finally the desulfurization waste water is treated efficiently, but the common evaporation tank is generally heated by steam, the problem of high energy consumption exists in the mode of directly heating cold water to obtain steam, on the other hand, the discharged steam is subjected to condensation treatment and cannot be directly discharged, and the step also has the problem of low energy utilization efficiency.
Disclosure of utility model
The utility model aims to provide a multi-effect evaporator for desulfurizing wastewater, which is energy-saving and energy-saving.
In order to achieve the purpose, the multi-effect evaporator for desulfurization wastewater treatment adopts the following technical scheme:
The utility model provides a multiple effect evaporator for desulfurization waste water treatment, includes the one-level evaporation tank, is equipped with first feed inlet, first steam outlet, first discharge gate, first comdenstion water export on the one-level evaporation tank, and one-level evaporation tank side is equipped with second level evaporation tank, tertiary evaporation tank, is equipped with second feed inlet, second steam outlet, second discharge gate, second comdenstion water export on the second level evaporation tank, is equipped with third feed inlet, third steam outlet, third discharge gate, third comdenstion water export on the tertiary evaporation tank, first steam outlet is connected in second steam inlet, and second steam outlet is connected in third steam inlet, first discharge gate is connected in second feed inlet, the one-level evaporation tank front end is equipped with the heating tank, be equipped with cold water in the heating tank, the gas outlet is connected in first steam inlet, and the heating tank outside is equipped with the intermediate layer, and flue gas that the intermediate layer flows into the tower, third steam outlet connects the pond for the preparation of pond desulfurization thick liquid.
The utility model relates to a further improvement of a multi-effect evaporator for desulfurization wastewater treatment, which is characterized in that a first condensate outlet, a second condensate outlet and a third condensate outlet are connected in a heating tank.
The utility model relates to a further improvement of a multi-effect evaporator for desulfurization wastewater treatment, which is characterized in that a flue gas outlet and a flue gas inlet are arranged on an interlayer, the flue gas outlet is connected to a desulfurization tower through a connecting pipe, a heat exchange cavity is arranged outside a pipeline between a first steam outlet and a second steam inlet and a pipeline between the second steam outlet and a third steam inlet, and a circulating pipe is arranged on the connecting pipe and connected to the heat exchange cavity.
The utility model relates to a further improvement of a multi-effect evaporator for desulfurization wastewater treatment, which is characterized in that an air outlet is connected with a second steam inlet and a third steam inlet through branch pipes.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model utilizes the high-temperature flue gas to heat water to form steam for the evaporation tank, and uses the steam passing through the evaporation tank for preparing the desulfurization slurry, thereby realizing the heat utilization of the high-temperature flue gas, reducing the heating time and energy of the desulfurization slurry, and improving the overall energy efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
In the figure: 1 first-stage evaporation tank, 2 first feed inlet, 3 first discharge gate, 4 first steam inlet, 5 first steam outlet, 6 first comdenstion water export, 7 second-stage evaporation tank, 8 second feed inlet, 9 second steam inlet, 10 second discharge gate, 11 second steam outlet, 12 second comdenstion water export, 13 tertiary evaporation tank, 14 third feed inlet, 15 third steam inlet, 16 third comdenstion water export, 17 third steam outlet, 18 third discharge gate, 19 pond, 20 heating jar, 21 desulfurizing tower, 22 flue gas import, 23 water inlet, 24 flue gas export, 25 gas outlet, 26 circulating pipe, 27 heat exchange cavity, 28 connecting pipe, 29 are in charge of.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, a multiple-effect evaporator for desulfurization wastewater treatment comprises a primary evaporation tank 1, wherein a first feed inlet 2, a first steam inlet 4, a first steam outlet 5, a first discharge port 3 and a first condensate outlet 4 are arranged on the primary evaporation tank, a secondary evaporation tank 7 and a tertiary evaporation tank 13 are arranged on the side of the primary evaporation tank, a second feed inlet 8, a second steam inlet 9, a second steam outlet 11, a second discharge port 10 and a second condensate outlet 12 are arranged on the secondary evaporation tank, a third feed inlet 14, a third steam inlet 15, a third steam outlet 17, a third discharge port 18 and a third condensate outlet 16 are arranged on the tertiary evaporation tank, the first steam outlet is connected with the second steam inlet, the second steam outlet is connected with the third steam inlet, the first discharge port is connected with the second feed inlet, a heating tank 20 is arranged at the front end of the primary evaporation tank, cold water is arranged in the heating tank, an air outlet 25 is arranged on the heating tank, the air outlet is connected with the first steam inlet, the air outlet is connected with a water pool for preparing a flue gas desulfurization tower, the air outlet is connected with the outside of a third steam inlet, and a water pool is connected with the third steam inlet, and a sandwich layer is arranged on the heating tank.
Further, the first condensate outlet, the second condensate outlet and the third condensate outlet are connected in the heating tank. And recovering and reutilizing the condensed water.
Further, a flue gas outlet 24 and a flue gas inlet 22 are arranged on the interlayer, the flue gas outlet is connected to the desulfurizing tower through a connecting pipe 28, a heat exchange cavity 27 is arranged outside a pipeline between the first steam outlet and the second steam inlet and a pipeline between the second steam outlet and the third steam inlet, and a circulating pipe 26 is arranged on the connecting pipe and connected to the heat exchange cavity. Valves can be arranged on the pipelines. The device is used for selectively carrying out heat exchange and temperature increase on the steam after the first effect and the second effect, and improving the concentration treatment effect of the second effect and the third effect.
The air outlet is also connected to the second steam inlet and the third steam inlet through a branch pipe 29. Likewise, the selective use is used for improving the steam temperature after the first effect and the second effect, and ensuring the effect.
The method comprises the working principle that high-temperature flue gas heats water into steam, then the steam sequentially enters three evaporation tanks, desulfurization waste water also sequentially enters the three evaporation tanks for concentration treatment, if the treatment effect of the two-stage evaporation tanks and the three-stage evaporation tanks is poor in treatment process, steam heating can be carried out, the flue gas is used for heat exchange, or the high-temperature steam is directly supplemented, finally, the steam discharged from the three-stage evaporation tanks is directly introduced into a water tank, the water in the water tank is heated, the desulfurization slurry is prepared by using the steam to reduce the preheating time of the desulfurization slurry, and the energy temperatures of all stages can be efficiently utilized in the whole, so that the energy conservation is realized while the stability is ensured.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A multi-effect evaporator for desulfurization wastewater treatment is characterized by comprising a first-stage evaporation tank, wherein a first feed inlet, a first steam outlet, a first discharge port and a first condensate outlet are formed in the first-stage evaporation tank, a second-stage evaporation tank and a third-stage evaporation tank are arranged beside the first-stage evaporation tank, a second feed inlet, a second steam outlet, a second discharge port and a second condensate outlet are formed in the second-stage evaporation tank, a third feed inlet, a third steam outlet, a third discharge port and a third condensate outlet are formed in the third-stage evaporation tank, the first steam outlet is connected with the second steam inlet, the second steam outlet is connected with the third steam inlet, a heating tank is arranged at the front end of the first-stage evaporation tank, cold water is arranged in the heating tank, an air outlet is arranged on the heating tank, the air outlet is connected with the first steam inlet, an interlayer is arranged on the outer side of the heating tank, and the flue gas flowing into a tower is connected with a desulfurization water pool.
2. A multi-effect evaporator for desulfurization wastewater treatment according to claim 1, wherein the first condensate outlet, the second condensate outlet and the third condensate outlet are connected in a heating tank.
3. A multi-effect evaporator for desulfurization wastewater treatment according to claim 2, wherein a flue gas outlet and a flue gas inlet are arranged on the interlayer, the flue gas outlet is connected to a desulfurization tower through a connecting pipe, a heat exchange cavity is arranged outside a pipeline between the first steam outlet and the second steam inlet and a pipeline between the second steam outlet and the third steam inlet, and a circulating pipe is arranged on the connecting pipe and connected to the heat exchange cavity.
4. A multi-effect evaporator for desulfurization wastewater treatment according to claim 3, wherein the air outlet is further connected to the second steam inlet and the third steam inlet through branch pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422049728.5U CN223033155U (en) | 2024-08-23 | 2024-08-23 | Multi-effect evaporator for desulfurization wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422049728.5U CN223033155U (en) | 2024-08-23 | 2024-08-23 | Multi-effect evaporator for desulfurization wastewater treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223033155U true CN223033155U (en) | 2025-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422049728.5U Active CN223033155U (en) | 2024-08-23 | 2024-08-23 | Multi-effect evaporator for desulfurization wastewater treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223033155U (en) |
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- 2024-08-23 CN CN202422049728.5U patent/CN223033155U/en active Active
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