CN210145785U - Deep dehumidification purification system for wet flue gas - Google Patents
Deep dehumidification purification system for wet flue gas Download PDFInfo
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- CN210145785U CN210145785U CN201920896765.6U CN201920896765U CN210145785U CN 210145785 U CN210145785 U CN 210145785U CN 201920896765 U CN201920896765 U CN 201920896765U CN 210145785 U CN210145785 U CN 210145785U
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Abstract
The utility model discloses a contain wet flue gas degree of depth dehumidification clean system, this system mainly by high temperature air can heat pump, condensation storehouse, absorption tower and dry storehouse be connected in proper order and constitute, this system mainly utilizes high temperature air can the heat pump to absorb the temperature that contains wet flue gas, makes its temperature descend, to containing saturated vapor in the flue gas and carry out the condensation and retrieve, get rid of the purpose of dust in the flue gas simultaneously. The utility model has the advantages of simple integral structure, low cost, stable operation, low energy consumption and convenient maintenance.
Description
Technical Field
The utility model relates to a technical field that the atmosphere pollution was administered especially relates to a contain wet flue gas degree of depth dehumidification clean system.
Background
After water vapor in the smoke is in a supersaturated state, partial water vapor is condensed and fogged, so that a 'white smoke' phenomenon appears, the smoke is prone to being turned around, traveling and air quality are affected, and landscape pollution is caused. Meanwhile, the dust concentration in the wet smoke is generally 50mg/Nm3In the dust, the extremely fine dust containing PM2.5 or less is one of the causes of haze formation, the 'aerosol' formed by water vapor condensed in the air is the help of haze and seriously pollutes the air environment, and the removal of the extremely fine dust in the wet flue gas is a key point and a difficult point. A large amount of flue gas with the temperature of 200-300 ℃ exists in general enterprises, and the flue gas is directly discharged, so that a large amount of heat energy is wasted, meanwhile, the environment is thermally polluted, the flue gas waste heat with the temperature of 200-300 ℃ is fully recycled, and a large amount of energy consumption can be saved.
Disclosure of Invention
The utility model discloses the technical problem that needs to solve provides a contain wet flue gas degree of depth dehumidification clean system, through retrieving the heat that contains wet flue gas, reduces the flue gas temperature to carry out the condensation to the saturated vapor that contains in the flue gas and retrieve, reach the purpose of degree of depth dehumidification and dust fall.
In order to solve the technical problem, the utility model adopts the following technical proposal.
A deep dehumidification purification system for wet flue gas comprises a high-temperature air energy heat pump, a condensation bin, an absorption tower, a drying bin and a flue which are sequentially connected through a pipeline; the high-temperature air energy heat pump is used for sucking the wet flue gas, absorbing the heat energy in the wet flue gas, reducing the temperature of the wet flue gas and discharging the wet flue gas subjected to primary cooling; the condensation bin is used for sucking the wet flue gas after primary cooling, condensing the wet flue gas to reduce the temperature of the wet flue gas, condensing moisture in the wet flue gas and discharging the condensed wet flue gas; the absorption tower is used for absorbing the condensed wet flue gas, absorbing liquid drops formed after condensation in the wet flue gas and then discharging the water-absorbed flue gas; the drying bin is used for sucking the smoke after absorbing water, drying the residual water in the smoke and finally discharging the dried smoke; and the flue is used for sucking the dried flue gas and discharging the flue gas through the top end of the flue.
Above-mentioned contain wet flue gas degree of depth dehumidification clean system, high temperature air can the heat pump include throttling arrangement and heat transfer device, and heat transfer device's input is connected to throttling arrangement's output, and heat transfer device's exhanst gas outlet passes through the flue gas import intercommunication in pipeline and condensation storehouse.
The above-mentioned contain wet flue gas degree of depth dehumidification clean system, the condensation storehouse includes condensing equipment and preliminary recovery unit, and condensing equipment's flue gas inlet passes through pipeline and heat transfer device's exhanst gas outlet intercommunication, and condensing equipment's exhanst gas outlet is through pipeline and preliminary recovery unit's exhanst gas inlet intercommunication, and preliminary recovery unit's exhanst gas outlet passes through the pipeline and the flue gas inlet intercommunication of absorption tower.
3. In the deep dehumidification and purification system for the wet flue gas, the water tank is arranged beside the high-temperature air energy heat pump and comprises a water storage device and a water supply device, and the water storage device is communicated with the water supply device through a water pipe;
the high-temperature air energy heat pump also comprises a compression device and a cooler, a cooling water inlet of the cooler is communicated with a water supply device through a water pipe, and a cooling water outlet of the cooler is communicated with a water storage device through a water pipe; the water inlet of the compression device is communicated with the water outlet of the condensation device through a water pipe, the water outlet of the compression device is communicated with the high-temperature water inlet of the cooler, and the high-temperature water outlet of the cooler is communicated with the water inlet of the throttling device.
Above-mentioned contain wet flue gas degree of depth dehumidification clean system, the absorption tower includes defogging dust device and secondary recovery unit, and defogging dust device's passageway adopts many bent structures, and defogging dust device communicates through the preliminary recovery unit exhanst gas outlet in pipeline and condensation storehouse, and defogging dust device's exhanst gas outlet passes through pipeline and secondary recovery unit's flue gas entry intercommunication.
Above-mentioned contain wet flue gas degree of depth dehumidification clean system still is provided with the recovery storehouse in the system, and the recovery storehouse communicates with preliminary recovery unit and secondary recovery unit sewage discharge gate respectively.
Above-mentioned contain wet flue gas degree of depth dehumidification clean system, the water tank still includes purifier, purifier's water inlet passes through the pipeline and retrieves the delivery port intercommunication in storehouse, purifier's delivery port and water storage device intercommunication.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses carry out the integrated design to moisture and dust absorption process's in the flue gas that contains moisture, practiced thrift cost, reduction investment, reduced the operation cost and maintained the convenience to very big degree. The wet flue gas is cooled twice through the high-temperature air energy heat pump and the condensation bin, so that the condensation effect of moisture in the wet flue gas is effectively improved, the adsorption effect of dust in the wet flue gas is improved, and the air is cleaner and more environment-friendly; the high-temperature air energy heat pump utilizes low-grade waste heat energy of the temperature in the wet flue gas as driving force, so that high-grade electric energy is saved, refrigeration and heating are realized, and energy is fully utilized; the condensing device in the condensing bin condenses by adopting low-temperature liquid generated in the high-temperature air energy heat pump, so that energy is greatly saved, and the operating cost is saved; the water storage device in the water tank recovers water through the recovery bin and recycles the water, and meanwhile, hot water flowing out of the condensing device can be applied to other energy sources.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the high-pressure air energy heat pump of the present invention;
fig. 3 is a schematic structural diagram of the water tank of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A deep dehumidification purification system for wet flue gas is structurally shown in figure 1 and comprises a high-temperature air energy heat pump, a condensation bin, an absorption tower, a drying bin and a flue which are sequentially connected through pipelines; wet flue gas enters the system from the inlet end of the high-temperature air energy heat pump, and is treated by each component, and the dried and purified flue gas is discharged from the flue. Specifically, the high-temperature air energy heat pump sucks in wet flue gas, absorbs heat energy in the wet flue gas, reduces the temperature of the wet flue gas, discharges the wet flue gas after primary cooling to the condensation bin, the condensation bin carries out condensation treatment on the wet flue gas after primary cooling, reduces the temperature of the wet flue gas, condenses moisture in the wet flue gas, discharges the condensed wet flue gas to the absorption tower, the condensation tower absorbs the moisture of the wet flue gas after condensation, discharges the flue gas after water absorption to the drying bin, the drying bin dries the residual moisture in the flue gas, discharges the dried flue gas to a flue, and then discharges the flue gas through the top end of the flue.
The structure of the high-temperature air energy heat pump is shown in figure 2 and comprises a throttling device and a heat exchange device, wherein the output end of the throttling device is connected with the input end of the heat exchange device, and the flue gas outlet of the heat exchange device is communicated with the flue gas inlet of the condensation bin through a pipeline. The throttling device is used for releasing high-pressure liquid in the throttling device to reduce the vaporization temperature of the high-pressure liquid, the high-pressure liquid flows into the heat exchange device, the temperature of the waste heat of the wet flue gas sucked into the high-temperature air energy heat pump is about 200-plus-300 ℃, the wet flue gas flows through the heat exchange device and exchanges heat with the heat exchange device, the temperature of the wet flue gas sucked into the high-temperature air energy heat pump is reduced, the wet flue gas after primary cooling is discharged, the wet flue gas during discharging can be cooled to about 180-plus-100 ℃, and meanwhile, the low-temperature liquid in the heat exchange device flows out.
The condensation storehouse includes condensing equipment and preliminary recovery unit, and condensing equipment's flue gas inlet passes through pipeline and heat transfer device's exhanst gas outlet intercommunication, and condensing equipment's exhanst gas outlet is through pipeline and preliminary recovery unit's flue gas entry intercommunication, and preliminary recovery unit's exhanst gas outlet passes through the flue gas entry intercommunication of pipeline and absorption tower. The condensation device is used for condensing the wet flue gas which is sucked into the condensation bin and subjected to primary cooling, moisture in the wet flue gas forms fog drops through condensation, the fog drops adsorb dust in the wet flue gas, most of the fog drops adsorbing the dust are discharged together with the condensed wet flue gas, and a small part of fog drops adsorbing the dust are enlarged in size and are discharged through the primary recovery device; simultaneously, the temperature of the low-temperature liquid in the condensing device is increased, and the temperature-increased liquid is discharged.
The side of the high-temperature air energy heat pump is also provided with a water tank, the structure of the water tank is shown in figure 3 and comprises a water storage device and a water supply device, the water storage device is communicated with the water supply device through a water pipe, the water storage device is used for storing water, and the water supply device is used for discharging water and controlling the water flow speed.
The high-temperature air energy heat pump also comprises a compression device and a cooler, a cooling water inlet of the cooler is communicated with a water supply device through a water pipe, and a cooling water outlet of the cooler is communicated with a water storage device through a water pipe; the water inlet of the compression device is communicated with the water outlet of the condensation device through a water pipe, the water outlet of the compression device is communicated with the high-temperature water inlet of the cooler, and the high-temperature water outlet of the cooler is communicated with the water inlet of the throttling device. The compression device is used for sucking the warming liquid discharged by the condensing device and compressing the warming liquid to form high-temperature liquid and increase the pressure, the high-temperature liquid is discharged into the cooler, the temperature of the cooler is increased, the water discharged by the water supply device passes through the cooler and exchanges heat with the cooler, the temperature of the high-temperature liquid in the cooler is reduced and flows into the throttling device, and meanwhile, the temperature of the water after heat exchange is increased and is discharged to the water storage device in the water tank.
The absorption tower includes defogging dust device and secondary recovery unit, and defogging dust device's passageway adopts many bent structures, and defogging dust device communicates through the preliminary recovery unit exhanst gas outlet in pipeline and condensation storehouse, and defogging dust device's exhanst gas outlet passes through pipeline and secondary recovery unit's flue gas entry intercommunication. Defogging dust device is used for absorbing moisture, when the moisture-laden flue gas after the condensation of inhaling the absorption tower passes through defogging dust device, the droplet of wherein fuses each other and enlargies and adsorbs the dust, defogging dust device's passageway adopts many bends to design, the droplet and the dust after the amplification are effectively blockked by it when passing through defogging dust device, thereby make moisture-laden flue gas effectively purify, moisture-laden flue gas after the water absorption is discharged, the droplet and the dust that block down simultaneously pass through secondary recovery unit and discharge.
The utility model discloses in still be provided with the recovery storehouse, the recovery storehouse communicates with preliminary recovery unit and secondary recovery unit sewage discharge gate respectively for collect preliminary recovery unit exhaust small part droplet and secondary recovery unit exhaust most droplet, and form sewage discharge. In order to reasonably utilize the sewage discharged by the recovery bin, a purification device is also arranged in the water tank, a water inlet of the purification device is communicated with a water outlet of the recovery bin through a pipeline, and a water outlet of the purification device is communicated with a water storage device; the purification device is used for sucking the sewage discharged from the recovery bin, filtering the sewage, and discharging the filtered clean water into the water storage device.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A deep dehumidification purification system for wet flue gas is characterized by comprising a high-temperature air energy heat pump, a condensation bin, an absorption tower, a drying bin and a flue which are sequentially connected through a pipeline; the high-temperature air energy heat pump is used for sucking the wet flue gas, absorbing the heat energy in the wet flue gas, reducing the temperature of the wet flue gas and discharging the wet flue gas subjected to primary cooling; the condensation bin is used for sucking the wet flue gas after primary cooling, condensing the wet flue gas to reduce the temperature of the wet flue gas, condensing moisture in the wet flue gas and discharging the condensed wet flue gas; the absorption tower is used for absorbing the condensed wet flue gas, absorbing liquid drops formed after condensation in the wet flue gas and then discharging the water-absorbed flue gas; the drying bin is used for sucking the smoke after absorbing water, drying the residual water in the smoke and finally discharging the dried smoke; and the flue is used for sucking the dried flue gas and discharging the flue gas through the top end of the flue.
2. The system for deeply dehumidifying and purifying wet flue gas according to claim 1, wherein the high-temperature air energy heat pump comprises a throttling device and a heat exchange device, an output end of the throttling device is connected with an input end of the heat exchange device, and a flue gas outlet of the heat exchange device is communicated with a flue gas inlet of the condensation bin through a pipeline.
3. The system for deeply dehumidifying and purifying wet flue gas as claimed in claim 2, wherein the condensation bin comprises a condensation device and a primary recovery device, a flue gas inlet of the condensation device is communicated with a flue gas outlet of the heat exchange device through a pipeline, a flue gas outlet of the condensation device is communicated with a flue gas inlet of the primary recovery device through a pipeline, and a flue gas outlet of the primary recovery device is communicated with a flue gas inlet of the absorption tower through a pipeline.
4. The deep dehumidification and purification system for wet flue gas as recited in claim 3, wherein a water tank is further arranged beside the high temperature air energy heat pump, the water tank comprises a water storage device and a water supply device, and the water storage device is communicated with the water supply device through a water pipe;
the high-temperature air energy heat pump also comprises a compression device and a cooler, a cooling water inlet of the cooler is communicated with a water supply device through a water pipe, and a cooling water outlet of the cooler is communicated with a water storage device through a water pipe; the water inlet of the compression device is communicated with the water outlet of the condensation device through a water pipe, the water outlet of the compression device is communicated with the high-temperature water inlet of the cooler, and the high-temperature water outlet of the cooler is communicated with the water inlet of the throttling device.
5. The deep dehumidification purification system for wet flue gas according to claim 4, wherein the absorption tower comprises a demisting and dedusting device and a secondary recovery device, a channel of the demisting and dedusting device adopts a multi-bend structure, the demisting and dedusting device is communicated with a flue gas outlet of the primary recovery device of the condensation bin through a pipeline, and the flue gas outlet of the demisting and dedusting device is communicated with a flue gas inlet of the secondary recovery device through a pipeline.
6. The deep dehumidification and purification system for wet flue gas as recited in claim 5, wherein a recovery bin is further provided in the system, and the recovery bin is respectively communicated with the sewage outlets of the primary recovery device and the secondary recovery device.
7. The system for deeply dehumidifying and purifying wet flue gas as claimed in claim 6, wherein the water tank further comprises a purifying device, a water inlet of the purifying device is communicated with a water outlet of the recycling bin through a pipeline, and a water outlet of the purifying device is communicated with the water storage device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920896765.6U CN210145785U (en) | 2019-06-14 | 2019-06-14 | Deep dehumidification purification system for wet flue gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920896765.6U CN210145785U (en) | 2019-06-14 | 2019-06-14 | Deep dehumidification purification system for wet flue gas |
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| CN210145785U true CN210145785U (en) | 2020-03-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227332A (en) * | 2019-06-14 | 2019-09-13 | 无锡市东方环境工程设计研究所有限公司 | The dehumidification purification system of depth containing wet flue gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227332A (en) * | 2019-06-14 | 2019-09-13 | 无锡市东方环境工程设计研究所有限公司 | The dehumidification purification system of depth containing wet flue gas |
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