CN112225279A - Mechanical ventilation wastewater evaporation tower suitable for air cooling tower - Google Patents
Mechanical ventilation wastewater evaporation tower suitable for air cooling tower Download PDFInfo
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- CN112225279A CN112225279A CN202011158462.8A CN202011158462A CN112225279A CN 112225279 A CN112225279 A CN 112225279A CN 202011158462 A CN202011158462 A CN 202011158462A CN 112225279 A CN112225279 A CN 112225279A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 86
- 238000001704 evaporation Methods 0.000 title claims abstract description 59
- 230000008020 evaporation Effects 0.000 title claims abstract description 58
- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 238000005399 mechanical ventilation Methods 0.000 title description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 238000009826 distribution Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000012856 packing Methods 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 12
- 239000011152 fibreglass Substances 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 abstract description 55
- 230000023556 desulfurization Effects 0.000 abstract description 55
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 75
- 230000001965 increasing effect Effects 0.000 description 14
- 238000012546 transfer Methods 0.000 description 11
- 239000010408 film Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000012080 ambient air Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 3
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- 238000000909 electrodialysis Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009292 forward osmosis Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/141—Wind power
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- Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a mechanical draft wastewater evaporation tower suitable for an air cooling tower, wherein the outer surface of a frame (11) is wrapped by a sealing panel (2), a cylindrical heightening exhaust barrel (9) is arranged above the frame (11), a stair (14) is arranged on one side of the frame (11), a motor (10) is installed at the top of the frame (11), the output end of the motor (10) is connected with a fan (8), two layers of high-efficiency water collectors (7) are transversely arranged on a cross beam of the frame (11), water distribution pipes (5) are arranged in the frame (11), and a water spray nozzle (6) is installed on each water distribution pipe (5), so that the defects of high initial investment and high later-stage running cost of the traditional desulfurization wastewater treatment process in the prior art are overcome, and the mechanical draft wastewater evaporation tower has two layers of high-efficiency water collectors, ensuring no corrosion of surrounding facilities.
Description
Technical Field
The invention relates to the technical field of desulfurization wastewater treatment of thermal power plants, in particular to a mechanical draft wastewater evaporation tower suitable for an air cooling tower.
Background
With the improvement of environmental protection requirements, a desulfurization device is required to be synchronously built in newly built power plants, and the most widely applied desulfurization method at present is a limestone-gypsum wet desulfurization process. Because the slurry is fully contacted with the flue gas in the desulfurization process, the discharged water of the desulfurization system contains salt and heavy metal with higher concentration. The desulfurization wastewater has high salt content and strong corrosivity, and is the most difficult wastewater to treat in a power plant.
In recent years, some newly built power plants are provided with desulfurization wastewater zero-discharge treatment facilities, and the common process route comprises the following steps: mechanical vapor compression (MVR) recycling technology, forward osmosis (MBC) concentration technology, electric ion membrane (electrodialysis) concentration technology, direct flue spray evaporation technology and bypass flue spray evaporation technology.
The table below shows the investment of the desulfurization wastewater zero-discharge facility of the newly built unit and the cost of water treatment per ton. Therefore, the traditional treatment process has the defects of high initial investment and high later-stage operation cost.
TABLE 1 comparison of economics of desulfurization wastewater treatment process
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a mechanical draft wastewater evaporation tower suitable for an air cooling tower.
The purpose of the invention is implemented by the following technical scheme: the utility model provides a mechanical draft waste water evaporation tower suitable for in air cooling tower, is located indirect air cooling tower, its characterized in that: the tower body is internally provided with a sealing panel, a water pool, a packing layer, a water distribution pipe, a water spraying nozzle, a high-efficiency water collector, a fan, a heightened exhaust barrel, a motor, a frame, an air inlet and a water inlet pipe;
the outer surface of the frame is wrapped with a sealing panel, a cylindrical heightening exhaust duct is arranged above the frame, a stair is arranged on one side of the frame, a motor is arranged on the top of the frame, the output end of the motor is connected with a fan,
two layers of the high-efficiency water collector are transversely arranged on the beam of the frame, water distribution pipes are arranged in the frame, each water distribution pipe is provided with a water spraying nozzle, a packing layer is transversely paved on the beam in the frame,
the efficient water collector, the water distribution pipe and the packing layer are arranged in a layered manner from top to bottom;
one side of sealing panel be provided with the inlet tube, the other end and the circulating water pump of inlet tube communicate with each other, frame bottom be provided with the air intake.
In the above technical scheme: the tower body adopts a reinforced concrete structure or a glass fiber reinforced plastic structure.
In the above technical scheme: the height of the heightened exhaust duct is greater than that of the air cooling radiator.
In the above technical scheme: one side of the tower body is provided with a circulating water pump, a water pipe at one end of the circulating water pump extends into the reservoir, the other end of the circulating water pump is communicated with a water inlet pipe arranged at one side of the sealing panel,
the opposite side of tower body be provided with the drain pump, the one end water pipe of drain pump stretch into to the cistern, the drain pipe of drain pump and the multiplexing water pipe looks UNICOM of waste water in the external power plant.
In the above technical scheme: the water delivery pipe of the circulating water pump is communicated with the water inlet pipe arranged on one side of the sealing panel.
In the above technical scheme: the water inlet pipe is communicated with a water distribution pipe arranged in the water inlet pipe.
The invention has the following advantages: the invention has the following advantages:
1. compared with the traditional process, the invention saves more than 1600 ten thousand yuan, and the operation cost is only 20 percent of that of the conventional scheme; according to the performance test result of the demonstration project, the drift drop loss rate is only four hundred thousandths of a ten-thousandth, which is 10% of the standard limit, and the huge commercial value and the environmental protection performance are reflected.
2. The invention utilizes the filler in the filler layer to expand the desulfurization wastewater to form a water film shape, thereby effectively increasing the contact area of the desulfurization wastewater and air; the surface wind speed of the water film is effectively improved through the exhaust fan in the tower body; the temperature of the desulfurization wastewater is heated by utilizing high-temperature and low-humidity air in the tower body, waste heat in the indirect air cooling tower is effectively utilized, the temperature of the desulfurization wastewater is increased, the evaporation decrement of the desulfurization wastewater is more than 70%, the effective decrement of the desulfurization wastewater is realized, and a small amount of residual desulfurization wastewater can be consumed in a power plant without being discharged outside, so that the environmental pollution is avoided.
3. The desulfurization wastewater in the water storage tank is pumped and pressurized by a water pump after being continuously evaporated and concentrated, and is used for the procedures of slag salvaging machines, dry ash humidification and the like in a power plant for absorption, so that the absorption in the plant is realized without discharge.
4. The two-layer high-efficiency water collector is arranged to ensure that saline water droplets are discharged from the heightened air exhaust cylinder arranged at the top of the saline water droplet non-random force ventilation wastewater evaporation tower and to ensure that surrounding facilities are not corroded.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a top view of the present invention.
FIG. 3 is a schematic structural view of a mechanical draft wastewater evaporation tower according to the present invention.
FIG. 4 is a cross-sectional view of a forced draft wastewater evaporation tower of the present invention.
In the figure: the device comprises a tower body 1, a sealing panel 2, a water storage tank 3, a packing layer 4, a water distribution pipe 5, a water spraying nozzle 6, a high-efficiency water collector 7, an exhaust fan 8, a heightened exhaust duct 9, a motor 10, a frame 11, an air inlet 12, a water inlet pipe 13, a stair 14, an indirect air cooling tower 15, a circulating water pump 16, an air cooling radiator 17, a mechanical ventilation wastewater evaporation tower 18, a tower barrel 19 and a drainage pump 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The technical principle is as follows: a large amount of waste heat of the steam turbine is finally exhausted to the atmosphere through the air cooling tower, and the air cooling tower is in a high-temperature and low-humidity environment state all the year round and has good evaporation conditions.
The machine-powered ventilation wastewater evaporation tower is additionally arranged in the indirect air cooling tower, so that the waste heat in high-temperature low-humidity air in the air cooling tower is effectively utilized, and the desulfurization wastewater evaporation decrement is over 60 percent.
According to the evaporation theory, the enhanced evaporation can be realized by increasing the contact area of air and water, increasing the surface wind speed of a water film and increasing the water temperature.
The thin film filler is arranged in the mechanical ventilation wastewater evaporation tower, so that the gas-water contact area can be effectively increased; the arranged fan ensures that the surface of the water film has higher wind speed; the high-temperature and low-humidity air in the air cooling tower is a natural heat source, and can effectively heat the desulfurization wastewater and improve the saturated steam pressure, thereby ensuring the efficient evaporation of the desulfurization wastewater.
The air temperature in the indirect air cooling tower is far higher than the ambient air temperature, and calculation shows that the air temperature in the tower is higher than the ambient air temperature by more than 20 ℃; in winter, the temperature of the air in the tower is higher than that of the ambient air by more than 30 ℃, and the high-temperature and low-humidity environment of the air in the tower provides conditions for effective evaporation of the desulfurization wastewater.
According to the heat transfer theory, the increase of the evaporation capacity of the desulfurization wastewater can be realized by increasing the temperature of the desulfurization wastewater, increasing the surface wind speed of the desulfurization wastewater and increasing the contact area of the desulfurization wastewater and air. According to the modification scheme, the mechanical ventilation evaporation tower is additionally arranged in the indirect air cooling tower, and the desulfurization wastewater is expanded into a water film shape by using the filler in the evaporation tower, so that the contact area of the desulfurization wastewater and air is effectively increased; the surface wind speed of the water film is effectively improved through a mechanical draft evaporation tower fan; the temperature of the desulfurization wastewater is heated by utilizing high-temperature and low-humidity air in the tower, waste heat is effectively recovered, the temperature of the desulfurization wastewater is increased, and the scheme can realize that the evaporation decrement of the desulfurization wastewater is more than 60 percent.
The desulfurization wastewater accumulated in the desulfurization wastewater evaporation tank is pressurized by a self-suction desulfurization wastewater circulating water pump, is sent into a mechanical ventilation evaporation tower through a pipeline, is sprayed by a water distribution system, and is subjected to heat transfer and mass transfer with high-temperature and low-humidity air in the evaporation tower to realize evaporation decrement, and the desulfurization wastewater after decrement concentration returns to the desulfurization wastewater evaporation tank to enter the next circulation.
The core equipment, namely the mechanical ventilation wastewater evaporation tower, obtains the rule of heat transfer and mass transfer of the desulfurization wastewater and high-temperature low-humidity air through laboratory tests; the scheme of heightening the exhaust barrel is determined through numerical simulation, and the exhaust of the mechanical draft wastewater evaporation tower is ensured to smoothly converge into the ascending airflow of the air cooling tower; in addition, two layers of high-efficiency water collectors are specially arranged to ensure that saline water drops do not overflow the mechanical ventilation wastewater evaporation tower along with exhaust gas, and to ensure that surrounding facilities are not corroded.
Referring to FIGS. 1-4: a mechanical draft waste water evaporation tower suitable for an air cooling tower is positioned in an air cooling radiator, a sealing panel 2, a water pool 3, a packing layer 4, a water distribution pipe 5, a water spraying nozzle 6, a high-efficiency water collector 7, a fan 8, a heightened exhaust barrel 9, a motor 10, a frame 11, an air inlet 12 and a water inlet pipe 13 are arranged in a tower body 1;
the outer surface of the frame 11 is wrapped with a sealing panel 2, a cylindrical heightening exhaust duct 9 is arranged above the frame 11, a stair 14 is arranged on one side of the frame 11, a motor 10 is arranged at the top of the frame 11, the output end of the motor 10 is connected with a fan 8,
two layers of the high-efficiency water collector 7 are transversely arranged on the beam of the frame 11, water distribution pipes 5 are arranged in the frame 11, each water distribution pipe 5 is provided with a water spraying nozzle 6, a layer of packing layer 4 is transversely paved on the beam in the frame 11,
the high-efficiency water collector 7, the water distribution pipe 5 and the packing layer 4 are arranged in a layered way from top to bottom
The tower body 1 is of a reinforced concrete structure or a glass fiber reinforced plastic structure; an opening is reserved at the top end of the frame 11, and a water pool 3 is arranged below the opening.
The height of the heightened exhaust duct 9 is greater than that of the air cooling radiator.
The bottom of the frame 11 is provided with an air inlet 12; the water pool 3 is internally provided with a water pump, and a water delivery pipe of the water pump is communicated with a water inlet pipe 13 arranged on one side of the sealing panel 2.
The water inlet pipe 13 is communicated with the water distribution pipe 5 arranged in the water distribution pipe.
Referring to FIGS. 1-4: a system for enhancing evaporation decrement of desulfurization wastewater in an indirect air cooling tower comprises
The system comprises a tower body 1, a sealing panel 2, a reservoir 3, a packing layer 4, a water distribution pipe 5, a water spraying nozzle 6, a high-efficiency water collector 7, a fan 8, a heightened exhaust barrel 9, a motor 10, a frame 11, an air inlet 12, a water inlet pipe 13, a stair 14, an indirect air cooling tower 15, a circulating water pump 16, an air cooling radiator 17, a mechanical ventilation wastewater evaporation tower 18, a tower 19 and a drainage pump 20;
a circle of air cooling radiators 17 are arranged on the outer side of the bottom of the indirect air cooling tower 15 along the circumferential direction,
the extension of the upper vertex of the air cooling radiator 17 is seamlessly connected with the air inlet 12 through a steel plate;
ambient air is heated by the air cooling radiator 17 and then flows into the indirect air cooling tower 15, the mechanical ventilation wastewater evaporation tower 18 is positioned in a high-temperature and low-humidity environment in the indirect air cooling tower 15, and the mechanical ventilation wastewater evaporation tower 18 sucks high-temperature air through the air inlet 12 to achieve the purpose of evaporating the desulfurization wastewater;
a circulating water pump 16, a mechanical ventilation wastewater evaporation tower 18, a water storage tank 3 and a drainage pump 20 are arranged in the indirect air cooling tower 15;
an air inlet 12 is arranged at the bottom of the mechanical ventilation wastewater evaporation tower 18, a reservoir 3 is arranged below the air inlet 12, a circulating water pump 16 is arranged at one side of the mechanical ventilation wastewater evaporation tower 18, a water inlet pipe at one end of the circulating water pump 16 extends into the reservoir 3, the other end of the circulating water pump is communicated with a water inlet pipe 13 arranged at one side of the sealing panel 2,
the opposite side of mechanical draft waste water evaporation tower 18 be provided with drain pump 20, the one end water pipe of drain pump 20 stretch into to cistern 3, drain pipe and the external power plant of drain pump 20 in the reuse water pipe looks UNICOM of waste water.
The mechanical draft waste water evaporation tower 18 is arranged in the indirect air cooling tower 15; a sealing panel 2, a reservoir 3, a packing layer 4, a water distribution pipe 5, a water spraying nozzle 6, a high-efficiency water collector 7, a fan 8, a heightened exhaust barrel 9, a motor 10, a frame 11, an air inlet 12, a water inlet pipe 13 and a stair 14 are arranged in a tower body 1 of the mechanical draft wastewater evaporation tower 18;
the outer surface of the frame 11 is wrapped with a sealing panel 2, a cylindrical heightening exhaust duct 9 is arranged above the frame 11, a stair 14 is arranged on one side of the frame 11, a motor 10 is arranged at the top of the frame 11, the output end of the motor 10 is connected with a fan 8,
two layers of the high-efficiency water collector 7 are transversely arranged on the beam of the frame 11, water distribution pipes 5 are arranged in the frame 11, each water distribution pipe 5 is provided with a water spraying nozzle 6, a layer of packing layer 4 is transversely paved on the beam in the frame 11,
the high-efficiency water collector 7, the water distribution pipe 5 and the packing layer 4 are arranged in a layered manner from top to bottom;
one side of the sealing panel 2 is provided with a water inlet pipe 13, the other end of the water inlet pipe 13 is communicated with a circulating water pump 16, and the bottom of the frame 11 is provided with an air inlet 12.
The tower body 1 is of a reinforced concrete structure or a glass fiber reinforced plastic structure; the height of the heightened exhaust duct 9 is greater than that of the air cooling radiator 17; the water inlet pipe 13 is communicated with the water distribution pipe 5 arranged in the water distribution pipe. As shown in table 2.
Comparing table 1, the present invention has achieved commercial success at a reduced investment, a design capacity of 20(t/h) for treated water, a reduced investment per ton of water, and a reduced price per ton of water treatment compared to an equivalent power plant.
The invention also comprises the following specific working processes: the method for enhancing evaporation decrement of desulfurization wastewater in an indirect air cooling tower comprises the following steps;
firstly, the outside air is heated by an air cooling radiator 17 to form air with high temperature and low humidity, then the air with high temperature and low humidity is heated to enter an indirect air cooling tower 15, the air with high temperature and low humidity extracted by a fan 8 of a mechanical draft waste water evaporation tower 18 is started to enter a tower body 1 through an air inlet 12 arranged at the bottom,
secondly, a circulating water pump 16 is arranged on one side of the mechanical ventilation wastewater evaporation tower 18, the circulating water pump 16 pumps the desulfurization wastewater to be treated in the reservoir 3, then the desulfurization wastewater to be treated is pumped by the circulating water pump 16 and enters a water distribution pipe 5 arranged in the tower body 1 from a water inlet pipe 13 arranged on one side,
a plurality of water spraying nozzles 6 are arranged on each water distribution pipe 5 at equal intervals, and hot water is uniformly sprayed through the water spraying nozzles 6;
and thirdly, the desulfurization waste water uniformly sprayed in the second step is spread to form a water film through the packing layer 4 arranged below, the contact area of the desulfurization waste water and the air is increased, the air speed on the surface of the water film is increased by using the fan 8 arranged above, the air with high temperature and low humidity in the first step reversely flows with the desulfurization waste water, and the effect of high-efficiency evaporation and reduction of the desulfurization waste water is achieved through contact heat transfer and mass transfer.
Fourthly, the desulfurization wastewater after heat transfer with high temperature and low humidity and mass transfer evaporation concentration continuously falls down and is finally recycled to a reservoir 3 arranged at the bottom;
contacting with the desulfurization wastewater in the step III, absorbing moisture and increasing humidity of air through heat transfer and mass transfer, continuously moving upwards, collecting a small amount of water droplets carried in the air by a high-efficiency water collector 7 arranged above, and discharging the residual clean wet air from a barrel opening of a heightened exhaust barrel 9 arranged at the top after being pressurized by a fan 8;
sixthly, the desulfurization wastewater recovered to the reservoir 3 arranged at the bottom in the step IV is finally extracted by the circulating water pump 16 again, and the step IV-V is circulated to realize the reduction process of the desulfurization wastewater.
The humidity of the humid air in the fifth step is more than ninety percent; when the salt content of the desulfurization wastewater in the step (c) is higher than 3.3 times of the raw water concentration of the desulfurization wastewater in the step (c), the drainage pump 20 arranged on one side of the mechanical ventilation wastewater evaporation tower 18 starts to work, and the drainage pump 20 pumps the desulfurization wastewater in the step (c) to an external desulfurization wastewater reuse water pipe in the power plant for the purposes of slag dragging the machine and humidifying dry ash for in-plant accommodation.
The above-mentioned parts not described in detail are prior art.
Claims (6)
1. The utility model provides a mechanical draft waste water evaporation tower suitable for in air cooling tower, is located indirect air cooling tower (15), its characterized in that: a sealing panel (2), a water pool (3), a packing layer (4), a water distribution pipe (5), a water spraying nozzle (6), a high-efficiency water collector (7), a fan (8), a heightened exhaust duct (9), a motor (10), a frame (11), an air inlet (12) and a water inlet pipe (13) are arranged in the tower body (1);
the outer surface of the frame (11) is wrapped with a sealing panel (2), a cylindrical heightening exhaust duct (9) is arranged above the frame (11), a stair (14) is arranged on one side of the frame (11), a motor (10) is installed at the top of the frame (11), the output end of the motor (10) is connected with a fan (8),
two layers of the high-efficiency water collector (7) are transversely arranged on the beam of the frame (11), water distribution pipes (5) are arranged in the frame (11), each water distribution pipe (5) is provided with a water spraying nozzle (6), a layer of packing layer (4) is transversely laid on the beam in the frame (11),
the high-efficiency water collector (7), the water distribution pipe (5) and the packing layer (4) are arranged in a layered manner from top to bottom;
one side of the sealing panel (2) is provided with a water inlet pipe (13), the other end of the water inlet pipe (13) is communicated with a circulating water pump (16), and the bottom of the frame (11) is provided with an air inlet (12).
2. The mechanical draft wastewater evaporation tower suitable for use in an air cooling tower of claim 1, wherein: the tower body (1) is of a reinforced concrete structure or a glass fiber reinforced plastic structure.
3. A mechanical draft wastewater evaporation tower suitable for use in an air cooling tower according to claim 1 or 2, wherein: the height of the heightened exhaust duct (9) is greater than that of the air cooling radiator (17).
4. A mechanical draft wastewater evaporation tower suitable for use in an air cooling tower according to claim 3, wherein: a circulating water pump (16) is arranged at one side of the tower body (1), a water pipe at one end of the circulating water pump (16) extends into the reservoir (3), the other end of the circulating water pump is communicated with a water inlet pipe (13) arranged at one side of the sealing panel (2),
the opposite side of tower body (1) be provided with drain pump (20), the one end water pipe of drain pump (20) stretch into cistern (3), the drain pipe of drain pump (20) and the reuse water pipe looks UNICOM of waste water in the external power plant.
5. The mechanical draft wastewater evaporation tower suitable for use in an air cooling tower of claim 4, wherein: the water delivery pipe of the circulating water pump (16) is communicated with the water inlet pipe (13) arranged on one side of the sealing panel (2).
6. A mechanical draft wastewater evaporation tower suitable for use in an air cooling tower according to claim 4 or 5, wherein: the water inlet pipe (13) is communicated with the water distribution pipe (5) arranged in the water inlet pipe.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311289925.8A CN117534151A (en) | 2020-10-26 | 2020-10-26 | Method for enhancing evaporation and decrement of desulfurization wastewater entering indirect air cooling tower |
| CN202011158462.8A CN112225279A (en) | 2020-10-26 | 2020-10-26 | Mechanical ventilation wastewater evaporation tower suitable for air cooling tower |
| CN202311289921.XA CN117509783A (en) | 2020-10-26 | 2020-10-26 | Enhanced evaporation deweighting system for desulfurization wastewater entering indirect air cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158462.8A CN112225279A (en) | 2020-10-26 | 2020-10-26 | Mechanical ventilation wastewater evaporation tower suitable for air cooling tower |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204757734U (en) * | 2015-06-19 | 2015-11-11 | 金川集团股份有限公司 | Turbid water cooling tower of industry |
| CN106629946A (en) * | 2016-12-05 | 2017-05-10 | 中国电力工程顾问集团中南电力设计院有限公司 | Desulfurization wastewater treatment integrated facility and desulfurization wastewater treatment method applicable to indirect air-cooling towers |
| WO2018045708A1 (en) * | 2016-09-06 | 2018-03-15 | 大唐环境产业集团股份有限公司 | Indirect air-cooling unit heat recovery and water treatment device and method |
| CN208414123U (en) * | 2018-06-06 | 2019-01-22 | 吴海峰 | A kind of system using tail end wastewater in waste and old cooling tower treatment plant of power plant |
| CN208599198U (en) * | 2018-07-26 | 2019-03-15 | 北京能为科技股份有限公司 | Infant industry evaporating column |
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2020
- 2020-10-26 CN CN202311289925.8A patent/CN117534151A/en active Pending
- 2020-10-26 CN CN202311289921.XA patent/CN117509783A/en active Pending
- 2020-10-26 CN CN202011158462.8A patent/CN112225279A/en active Pending
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| CN204757734U (en) * | 2015-06-19 | 2015-11-11 | 金川集团股份有限公司 | Turbid water cooling tower of industry |
| WO2018045708A1 (en) * | 2016-09-06 | 2018-03-15 | 大唐环境产业集团股份有限公司 | Indirect air-cooling unit heat recovery and water treatment device and method |
| CN106629946A (en) * | 2016-12-05 | 2017-05-10 | 中国电力工程顾问集团中南电力设计院有限公司 | Desulfurization wastewater treatment integrated facility and desulfurization wastewater treatment method applicable to indirect air-cooling towers |
| CN208414123U (en) * | 2018-06-06 | 2019-01-22 | 吴海峰 | A kind of system using tail end wastewater in waste and old cooling tower treatment plant of power plant |
| CN208599198U (en) * | 2018-07-26 | 2019-03-15 | 北京能为科技股份有限公司 | Infant industry evaporating column |
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| 尹华强: "绿色火电技术", vol. 1, 上海交通大学出版社, pages: 169 * |
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| CN117534151A (en) | 2024-02-09 |
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