CN106006800B - A kind of high-salt wastewater evaporating concentrating method and device - Google Patents
A kind of high-salt wastewater evaporating concentrating method and device Download PDFInfo
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- CN106006800B CN106006800B CN201610351716.5A CN201610351716A CN106006800B CN 106006800 B CN106006800 B CN 106006800B CN 201610351716 A CN201610351716 A CN 201610351716A CN 106006800 B CN106006800 B CN 106006800B
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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
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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
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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Abstract
The invention discloses a kind of high-salt wastewater evaporating concentrating method and devices, belong to high-salt wastewater processing technology field, process including carrying out heating evaporation and concentration to high-salt wastewater, it is characterized by: being oriented cause dirt before the high-salt wastewater heating, then high-salt wastewater heat using surface-type heat exchanger and the high-salt wastewater after heating is evaporated using mechanical-draft cooling tower, the recirculated cooling water that the heat medium water used in the surface-type heat exchanger flows out for condenser, method of the invention carries out heat exchange to high-salt wastewater using the recirculated cooling water of condenser, and the high-salt wastewater after heating is sent into mechanical-draft cooling tower and is evaporated, on the one hand the heat loss of condenser recirculated cooling water is reduced, improve the cooling efficiency of condenser, on the other hand the cost of high-salt wastewater processing is reduced.
Description
Technical field
The present invention relates to high-salt wastewater processing technology field, especially a kind of high-salt wastewater evaporating concentrating method and device.
Background technique
Currently, the industrial plant of Chinese large-sized can generate a kind of high-salt wastewater, this high-salt wastewater results from boiler supply
The pollution factor of film concentration in water process or the system blowdown in wet desulfurizing process, the high-salt wastewater is heavy metal, salt
Point etc., if being immediately discharged to water body will lead to pollution environment, the discharge of power plant's high-salt wastewater not only increases the water resource of power plant
Expense and charges for disposing pollutants, and inconvenience is brought to establishing and running for engineering.
On the other hand, the recirculating cooling water system of condenser turbine discharge condensed by condenser, circulating pump,
Cooling water circulating pipe, cooling tower etc. form, and a large amount of waste heat lose in cooling tower as water vapor in cooling water, make
At waste, while after vapor loses, the salt content of cooling water is increased, it is necessary to guarantee to follow by blowdown and moisturizing
The dynamic balancing of salinity in ring cooling water system thereby increases the consumption of cooling water.
According to the regulation of DL/T5196, in the thermal power plant for thering is desulfurization wastewater to generate, increase sulfuric acid in plant area's discharge of wastewater mouth
The power plant of the monitoring of salinity, general provision wet process of FGD should be equipped with independent desulfurizing waste water processing device；It is main at present
Liquid solution is concentrated using thermal Release Technology, in power industry mainly with vaporising device to the condensing crystallizing of high-salt wastewater
It is separated with liquid, high-salt wastewater is evaporated and needs first to heat, heating needs to consume mass energy, increases high-salt wastewater processing
Cost, while the fouling factor concentration in heating process in high-salt wastewater increases, and makes the heat-transfer surface heated to high-salt wastewater
Fouling is generated, heat exchange efficiency, serious damage heat exchange equipment and pollution heat medium water water quality are influenced.
Summary of the invention
The technical problem to be solved in the invention is: providing a kind of high-salt wastewater evaporating concentrating method and device, reduces high
Salt cost for wastewater treatment reduces the heat loss of condenser recirculated cooling water, improves the cooling efficiency of condenser, improves wastewater treatment
The safety and stability performance of equipment.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of high-salt wastewater evaporating concentrating method,
Process including carrying out heating evaporation and concentration to high-salt wastewater, it is characterised in that: be oriented before the high-salt wastewater heating
Dirt is caused, then high-salt wastewater heat and using mechanical-draft cooling tower to high salt after heating using surface-type heat exchanger
Waste water is evaporated, the recirculated cooling water that the heat medium water used in the surface-type heat exchanger flows out for condenser.
A kind of high-salt wastewater evaporation concentration device, including recirculated water is set gradually along waste water flow direction on wastewater inlet pipe
Pump, orientation cause dirty device, surface-type heat exchanger and mechanical-draft cooling tower, and the heat medium water of the surface-type heat exchanger is using solidifying
Collecting-tank is arranged in the lower part of the recirculated cooling water of vapour device outflow, the mechanical-draft cooling tower；Export is set on the collecting-tank
The sewage pipe of waste water and the recirculation pipe of connection water circulating pump.
Technical solution of the present invention further improvement lies in that: it includes that electrostatic method apparatus for eliminating sludge, crystal seed lure that orientation, which causes dirty device,
Lead one of fouling device and modified cotton fiber absorption apparatus for eliminating sludge or combinations thereof.
Technical solution of the present invention further improvement lies in that: setting orientation causes dirty device I on the recirculation pipe.
Technical solution of the present invention further improvement lies in that: the mechanical-draft cooling tower include tower body, ventilation equipment with
And the spray appliance on tower body top is set, the upper surface of evaporated vapor is arranged in tower body in the ventilation equipment.
Technical solution of the present invention further improvement lies in that: the surface-type heat exchanger is arranged in mechanical-draft cooling tower
It is interior.
Technical solution of the present invention further improvement lies in that: the surface-type heat exchanger points three layers in mechanical-draft cooling tower
It is interior horizontally disposed and every layer in each heat exchanger tube between be equipped with gap, surface-type heat exchanger layer is located in the tower body inner wall
Between be equipped with ventilation equipment.
Technical solution of the present invention further improvement lies in that: the surface-type heat exchanger points three layers in mechanical-draft cooling tower
Inside being mutually inclined is sealing structure between each heat exchanger tube in arrangement and every row, is changed in the tower body inner wall positioned at surface-type
Hot device interlayer is equipped with ventilation equipment.
Technical solution of the present invention further improvement lies in that: be arranged on the wastewater inlet pipe and solenoid valve I and recycling
Solenoid valve II is set on pipe, solenoid valve III is set on the sewage pipe；Water level sensor is set in the collecting-tank；The electromagnetism
Valve I, solenoid valve II, solenoid valve III and water circulating pump are controlled by controller.
Technical solution of the present invention further improvement lies in that: the water level sensor will monitor collecting-tank in water level signal
It is sent to controller, the controller automatically controls solenoid valve I, solenoid valve II, electromagnetism according to the signal that water level sensor transmits
The switch of valve III and water circulating pump.
Method of the invention carries out heat exchange to high-salt wastewater using the recirculated cooling water of condenser, and will be after heating
High-salt wastewater is sent into mechanical-draft cooling tower and is evaporated, and the heat loss of condenser recirculated cooling water is on the one hand reduced, and improves
On the other hand the cooling efficiency of condenser reduces the cost of high-salt wastewater processing.
Method of the invention carries out fouling on the predetermined position in the pipeline before high-salt wastewater is heated, and periodically clear
Reason prevents the heat-transfer surface fouling heated to high-salt wastewater, improves the security and stability of sewage treatment equipment.
Orientation is caused dirty device to be arranged between water circulating pump and surface-type heat exchanger by the device of the invention, in high-salt wastewater
Cause dirt is induced before heating, is prevented the heat-transfer surface fouling of surface-type heat exchanger, is improved the security and stability of sewage treatment equipment；
It uses the recirculated cooling water of outflow condenser to carry out the heat exchange of water water to high-salt wastewater by surface-type heat exchanger for heat medium water, reduces
To the heating cost of high-salt wastewater, while the heat loss of recirculated cooling water is reduced, reduces recirculated cooling water vapor and scatter and disappear,
Save the water consumption of recirculated cooling water.
Mechanical-draft cooling tower of the invention can increase air flowing when high-salt wastewater evaporation, and the water after making evaporation steams
Gas can be used in recycling；The heat exchange pipeline of circulation condenser recirculated cooling water will be laid in mechanical-draft cooling tower, make with high salt useless
Contact heat-exchanging pipeline is heated and is evaporated during water sprays in mechanical-draft cooling tower, to reach the mesh of concentration
, the technique for simplifying heat exchange and evaporation and concentration, while saving the space of equipment installation；The arrangement of heat exchange pipeline increases
The contact area of high-salt wastewater and heat-transfer surface, improves heat exchange efficiency；Setting orientation on recirculation pipe is caused into dirty device I, is used
It carries out causing dirt in advance in the high-salt wastewater that will reenter evaporation concentration device, avoids the equipment circulating line of evaporation concentration device
And fouling in equipment, improve the security and stability of sewage treatment equipment；By water level sensor, controller and solenoid valve block at from
Dynamicization system realizes the automation continuous operation of the circulatory system of evaporation concentration device, reduces manual operation, improves work effect
Rate.
Detailed description of the invention
Fig. 1 is the flow chart of high-salt wastewater evaporating concentrating method and device of the present invention；
Fig. 2 is the flow chart of further improved high-salt wastewater evaporating concentrating method of the present invention and device；
Fig. 3 is the flow chart of the recirculating cooling water system of condenser applied by the present invention；
Fig. 4 is the main view perspective of further improved mechanical-draft cooling tower in high-salt wastewater evaporation concentration device of the present invention
Schematic diagram；
Wherein, 1, water circulating pump, 1-1, wastewater inlet pipe, 1-2, recirculation pipe, 1-3, sewage pipe, 2, orientation cause dirt dress
It sets, 2-1, the dirty device I of orientation cause, 3, surface-type heat exchanger, 3-1, heat medium water inlet duct, 3-2, heating agent water exit conduit, 4,
Mechanical-draft cooling tower, 4-1, tower body, 4-2, ventilation equipment, 4-3, spray appliance, 5, collecting-tank, 6, water circulating pump I are 6-1, cold
But water circulating pipe, 7, condenser, 8, cooling tower, 9, collecting-tank I, 11, solenoid valve I, 12, solenoid valve II, 13, solenoid valve III,
14, water level sensor.
Specific embodiment
A kind of high-salt wastewater evaporating concentrating method, the process including high-salt wastewater to be carried out to heating evaporation and concentration, especially
Applied to the waste water of desulfurizer discharge, since the water in desulfurizer slurries can enriching heavy metal during continuous circulation
On the one hand element etc. accelerates the corrosion of desulphurization plant, on the other hand influences the quality of gypsum, therefore a certain amount of waste water is discharged
Into desulfurization wastewater treatment system, suspended matter, high organic content in the waste water for entering desulfurization wastewater treatment system, there are also one
A little heavy metal ion need the treatment processes such as neutralized, flocculation and precipitating；It is concentrated by evaporation again using high-salt wastewater of the present invention after up to standard
Method handled, wherein high-salt wastewater is heated using surface-type heat exchanger 3, then uses mechanical-draft cooling tower 4
It is evaporated, the water in high-salt wastewater is distributed as a vapor, to achieve the purpose that concentration；In addition surface-type changes
The heat medium water that hot device 3 uses flows out the recirculated cooling water of condenser 7 to condenser for the recirculated cooling water for flowing out condenser 7
Contain a large amount of heat after carrying out cooling, is routinely that recirculated cooling water is discharged into water-cooling tower by heat loss, causes heat loss
A large amount of cooling waters are consumed simultaneously, and the waste heat of recirculated cooling water is utilized and heated to high-salt wastewater by the present invention, is on the one hand saved
The heating cost of high-salt wastewater has been saved, the heat loss and water loss of recirculated cooling water are on the other hand reduced.
As shown in Figure 1, high-salt wastewater is oriented cause dirt before being heated into surface-type heat exchanger 3, it will be with high salt useless
The fouling factor in water causes dirty 2 designated place of device induction to cause dirt in orientation, prevents the fouling of heat-transfer surface of surface-type heat exchanger 3,
Increase the security and stability of system operation.
A kind of high-salt wastewater evaporation concentration device, wastewater inlet pipe 1-1, water circulating pump 1, orientation including being sequentially arranged are caused
Dirty device 2, surface-type heat exchanger 3, mechanical-draft cooling tower 4 and collecting-tank 5 are respectively equipped with waste water on the collecting-tank 5
The derived sewage pipe 1-3 and recirculation pipe 1-2 that waste water is imported to high-salt wastewater processing equipment circulating line；High-salt wastewater passes through
Wastewater inlet pipe 1-1 is imported in the equipment circulating line of apparatus of the present invention, keeps high-salt wastewater to exist by the pressurization of water circulating pump 1
Circulating in the present apparatus exports in water circulating pump 1 and orientation is used to cause dirty device 2 that high-salt wastewater is carried out induction cause dirt, so
High-salt wastewater feeding surface-type heat exchanger 3 is heated afterwards, surface-type heat exchanger 3 is using the circulating cooling for flowing out condenser 7
Water is heat medium water, reduces the cost heated to high-salt wastewater, and the high-salt wastewater after the heating of surface-type heat exchanger 3 is sent into machine
What is be concentrated after the sprinkling of tool aerating and cooling tower 4 is evaporated, the collection of the collecting-tank 5 of 4 lower part of mechanical-draft cooling tower is evaporated is with high salt useless
Water.
As described in Figure 3, the cooling water of condenser 7 is imported in condenser 7 by water circulating pump I 6 from collecting-tank I 9, and cooling water exists
After being cooled down in condenser 7 to turbine discharge by condenser 7 export be discharged, cooling water by condenser 7 outlet discharge after by
Cooling water circulating pipe 6-1 is flowed back into cooling tower 8 to cool down through sprinkling, then falls into collecting-tank I 9 again and forms a circulation；
The surface-type heat exchanger 3 of apparatus of the present invention is exported in cooling water by condenser 7 using the recirculated cooling water of outflow condenser 7
Heat medium water inlet duct 3-1 of the root canal road as surface-type heat exchanger 3 is separated after discharge, flows out the circulating cooling of condenser 7
Water heats high-salt wastewater after importing surface-type heat exchanger 3 from heat medium water inlet duct 3-1, and then recirculated cooling water is from table
Face formula heat exchanger 3 flows out, and flows back into cooling tower 8 by heating agent water exit conduit 3-2 and cools down through sprinkling, then falls into collection again
Pond I 9 forms another circulation.
As described in Figure 4, the mechanical-draft cooling tower 4 of apparatus of the present invention uses force ventilation, including tower body 4-1, ventilation to set
Standby 4-2 and spray appliance 4-3, spray appliance 4-3 setting are used for high-salt wastewater on 4 top of mechanical-draft cooling tower in tower
It is sprayed from the top down in body 4-1, makes high-salt wastewater freely falling body under gravity, ventilation equipment 4-2 setting is evaporated on tower body 4-1
The upper surface of steam for the vapor of evaporation to be exported mechanical-draft cooling tower 4 in time, or can pass through the vapor of evaporation
The air outlet of ventilation equipment 4-2 is recycled.
As described in Fig. 2, Fig. 4, surface-type heat exchanger 3 is arranged in mechanical-draft cooling tower 4, and such high-salt wastewater is in machinery
The heat exchanger tube of contact surface formula heat exchanger 3 carries out heating evaporation during sprinkling in aerating and cooling tower 4, saves setting surface
The equipment of the shell of formula heat exchanger 3, at the same it is more square in cleaning without the heat exchanger tube of the surface-type heat exchanger 3 of shell constraint
Just.
As described in Figure 2, gap is equipped between the every heat exchanger tube of surface-type heat exchanger 3, high-salt wastewater passes through between heat exchanger tube
Gap during absorb heat, then evaporate；And surface-type heat exchanger 3 divides three layers of water in mechanical-draft cooling tower 4
Plain cloth is set, and is equipped with a ventilation equipment 4-2, high-salt wastewater on 4 wall of mechanical-draft cooling tower between every layer surface formula heat exchanger 3
It can be by the way that the ventilation above evaporated vapor be arranged in after absorbing heat between the heat exchanger tube of every layer surface formula heat exchanger 3 and evaporating
Equipment 4-2 is timely discharged in mechanical-draft cooling tower 4, avoids vapor regelation.
It as described in Figure 4, is sealing structure between the every heat exchanger tube of 3 single row of tubes of surface-type heat exchanger row, high-salt wastewater can
With dynamic along the pipe drainage of heat exchanger tube, time of contact and the contact area of increase high-salt wastewater and heat exchanger tube increase high-salt wastewater
Evaporation efficiency；And surface-type heat exchanger 3 divides three layers to be mutually inclined arrangement in mechanical-draft cooling tower 4, and force ventilation is cold
But a ventilation equipment 4-2 is equipped on 4 wall of tower between every layer surface formula heat exchanger 3, high-salt wastewater is along the table being mutually inclined
The pipe row of face formula heat exchanger 3 is flowed back and forth, generates vapor during absorbing heat and evaporate, vapor is steamed by being arranged in
Ventilation equipment 4-2 above bleed steam is timely discharged in mechanical-draft cooling tower 4；The vapor of discharge can be discharged into atmosphere or
Person recycles.
As described in Figure 2, recirculation pipe 1-2 is equipped with orientation and causes dirty I 2-1 of device, for by the height by pouring into collecting-tank 5
Salt waste water causes dirt in the induction of the designated position of equipment circulating line, places high-salt wastewater fouling in equipment pipe and equipment,
Increase equipment safety in operation, while the high-salt wastewater derived from the collecting-tank 5 is since with certain temperature, induction causes the effect of dirt
Fruit is best, so causing dirt I 2-1 of device to be arranged on recirculation pipe 1-2 orientation, can eliminate in high-salt wastewater to greatest extent
The fouling factor.
As described in Figure 1, it is respectively equipped with solenoid valve I 11 and solenoid valve II 12 on wastewater inlet pipe 1-1 and recirculation pipe 1-2,
Sewage pipe 1-3 is equipped with solenoid valve III 13, and solenoid valve I 11 is used to control the circulation and resistance of high-salt wastewater in wastewater inlet pipe 1-1
Disconnected, solenoid valve II 12 is used to control the circulation and blocking of high-salt wastewater in recirculation pipe 1-2, and solenoid valve III 13 is used for control of sewage disposal
The circulation and blocking of high-salt wastewater in pipe 1-3；Collecting-tank 5 is equipped with water level sensor 14, and water level sensor 14 is for monitoring collection
The water level of high-salt wastewater in pond 5；Solenoid valve I 11, solenoid valve II 12, solenoid valve III 13 and water circulating pump 1 are by controller hand
Dynamic or automatic control；Compared to manually-operated gate used by usual pipeline, the application of solenoid valve can be realized of the invention automatic
Continuous operation saves manpower and improves working efficiency.
In high-salt wastewater evaporation concentration device work of the present invention, cyclic process are as follows: high-salt wastewater is certain by adding
Chemical treatment after removing the foreign ions such as a certain amount of calcium, magnesium, heavy metal, silicon, sulfate radical, passes through wastewater inlet pipe 1-1
Equipment circulating line is imported, is flowed in equipment circulating line by the pressurization of water circulating pump 1, high-salt wastewater flows out water circulating pump
It causes the dirty induction of device 2 to cause dirt by orientation after 1, removes and largely cause the dirty factor in high-salt wastewater, using surface-type heat exchanger 3
By high-salt wastewater heat exchange, finally the high-salt wastewater after heating is sprayed into mechanical-draft cooling tower 4 and evaporates a large amount of water steamings
For gas to improve the concentration of high-salt wastewater, reduce the content of high-salt wastewater, collecting-tank 5 collects the high-salt wastewater after concentration one
It rises, the water level sensor 14 in collecting-tank 5 monitors water level in collecting-tank 5, when the water level in collecting-tank 5 reaches highest limit value
When, water level sensor 14 transmits signals to controller, the signal that controller is transmitted according to water level sensor 14 can manually or
It automatically controls solenoid valve I 11 to close, blocks the waste water in wastewater inlet pipe 1-1 to import, while opens solenoid valve II 12, make with high salt
Waste water circulate in recirculation pipe 1-2 with realize will by flush distillation concentration collecting-tank 5 in high-salt wastewater can again this
Circulating and evaporating concentration is carried out, solenoid valve III 13 remains off while water circulating pump 1 is kept it turned on, to realize recycling
The closure and cyclicity of system.
As described in Figure 1, high-salt wastewater is power with water circulating pump 1 in recycling, is imported again out of collecting-tank 5 first
Then circulation pipe 1-2 causes dirt I 2-1 of device induction to carry out fouling at recirculation pipe 1-2 and exports, by circulation by orientation
Water pump 1 causes dirty device 2 as high-salt wastewater using orientation after pressurizeing and enters the chain induction cause dirt before surface-type heat exchanger 3,
High-salt wastewater is heated and evaporated again subsequently into surface-type heat exchanger 3 and mechanical-draft cooling tower 4, so that concentration is
Concentration is higher, the less high-salt wastewater of content, after above-mentioned circulation a period of time, high-salt wastewater content in collecting-tank 5 by
Gradually concentration is reduced, and includes the monitoring of water level to collecting-tank 5 by water level sensor 14, and when reaching the second limit value, water level is passed
Sensor 14 transmits signals to controller, and controller can manually or automatically control electricity according to the signal that water level sensor 14 transmits
Magnet valve II 12 and water circulating pump 1 are closed, and stop equipment operation of the invention, while opens solenoid valve III 13 passes through high-salt wastewater
Sewage pipe 1-3 is discharged out of collecting-tank 5.
With the discharge of high-salt wastewater in collecting-tank 5, when water level sensor 14 monitors that the water level in collecting-tank 5 reaches most
When lower bound definite value, controller can be transmitted signals to, the signal that controller is transmitted according to water level sensor 14 can manually or from
Dynamic control solenoid valve III 13 is closed, and circulation of the high-salt wastewater in sewage pipe 1-3, while opens solenoid valve I 11 and circulation are blocked
The high-salt wastewater of a new round is imported equipment circulating line of the invention by water pump 1, and solenoid valve II 12 remains off, to keep away
The suction pressure for exempting from water circulating pump 1 is split and influences to import the efficiency of high-salt wastewater；Wherein the highest in collecting-tank 5 limits
Value, the second limit value and minimum definite value determine that this system preferably uses continuous automatic running, and system is set according to wastewater discharge
Standby, pipeline and valve etc. select anti-corrosion material according to contact medium situation.
As described in Figure 2, dirty device 2 and orientation is caused to cause the fouling needs generated in I 2-1 of dirty device in orientation in system operation
Periodic cleaning can be filled or be doped into coal and be burned；Orientation causes dirty device 2 and orientation to cause dirt I 2-1 of device that can use
The equipment that magnetic treatment technique promotes dirt to generate is used so that the fouling factor be promoted largely to form loose dirt in high-salt wastewater again
Magnetic treatment technique can show preferable effect structure at 40 DEG C of temperature, and the orientation being arranged on recirculation pipe 1-2 causes
The high-salt wastewater that dirty I 2-1 of device is contacted is the concentration waste water after heating evaporation with certain temperature, meets temperature just
Requirement；In addition orientation causes dirty device 2 and orientation to cause I 2-1 of dirty device that can also connect with electrostatic, crystal seed induction, maleic anhydride
Equipment used by the technologies such as the modified cotton fiber of branch, to reach the fouling factor in removal high-salt wastewater, prevent heat-transfer surface with
And the fouling on pipeline.
Claims (3)
1. a kind of high-salt wastewater evaporating concentrating method, the process including carrying out heating evaporation and concentration to high-salt wastewater, feature
It is: is oriented cause dirt before the high-salt wastewater heating, then high-salt wastewater is heated using surface-type heat exchanger (3)
And the high-salt wastewater after heating is evaporated using mechanical-draft cooling tower (4), it is used in the surface-type heat exchanger (3)
Heat medium water is the recirculated cooling water of condenser (7) outflow；The device for realizing above-mentioned evaporating concentrating method, is included in wastewater inlet pipe
Water circulating pump (1) is set gradually along waste water flow direction on (1-1), orientation causes dirty device (2), surface-type heat exchanger (3) and machine
Tool aerating and cooling tower (4), the heat medium water of the surface-type heat exchanger (3) uses the recirculated cooling water of condenser (7) outflow, described
Collecting-tank (5) are arranged in the lower part of mechanical-draft cooling tower (4)；The sewage pipe (1-3) of setting export waste water on the collecting-tank (5)
With the recirculation pipe (1-2) of connection water circulating pump (1)；Setting orientation causes dirty device I (2-1) on the recirculation pipe (1-2)；Institute
Stating mechanical-draft cooling tower (4) includes that tower body (4-1), ventilation equipment (4-2) and the sprinkling being arranged on the top tower body (4-1) are set
The upper surface of evaporated vapor is arranged in tower body (4-1) in standby (4-3), the ventilation equipment (4-2)；The surface-type heat exchanger (3)
Setting is in mechanical-draft cooling tower (4)；Three layers of the surface-type heat exchanger (3) point is mutual in mechanical-draft cooling tower (4)
It is in tilted layout and is sealing structure between each heat exchanger tube in every row, changed on tower body (4-1) inner wall positioned at surface-type
Hot device (3) interlayer is equipped with ventilation equipment (4-2)；Solenoid valve I (11) are set on the wastewater inlet pipe (1-1) and in recirculation pipe
Solenoid valve II (12) are set on (1-2), solenoid valve III (13) are set on the sewage pipe (1-3)；Setting in the collecting-tank (5)
Water level sensor (14)；The solenoid valve I (11), solenoid valve II (12), solenoid valve III (13) and water circulating pump (1) are by controlling
Device control.
2. a kind of high-salt wastewater evaporating concentrating method according to claim 1, it is characterised in that: orientation causes dirty device (2)
Including one of electrostatic method apparatus for eliminating sludge, crystal seed induction fouling device and modified cotton fiber absorption apparatus for eliminating sludge or combinations thereof.
3. a kind of high-salt wastewater evaporating concentrating method according to claim 1, it is characterised in that: the water level sensor
(14) water level signal monitored in collecting-tank (5) is sent to controller, the controller is transmitted according to water level sensor (14)
Signal automatically control solenoid valve I (11), solenoid valve II (12), solenoid valve III (13) and water circulating pump (1) switch.
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| CN201610351716.5A CN106006800B (en) | 2016-05-25 | 2016-05-25 | A kind of high-salt wastewater evaporating concentrating method and device |
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| CN106006800B true CN106006800B (en) | 2019-05-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060601A (en) * | 2015-09-11 | 2015-11-18 | 卫士循环水处理（北京）有限公司 | Comprehensive disposal system special for zero emission of thermal power plant |
| CN105464725A (en) * | 2015-12-31 | 2016-04-06 | 武汉凯迪电力工程有限公司 | Direct-air-cooling power generation system with natural ventilation cooling tower |
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| KR100870449B1 (en) * | 2008-02-28 | 2008-11-25 | (주)블리틱스 | Wastewater treatment apparatus in a manner of evaporation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060601A (en) * | 2015-09-11 | 2015-11-18 | 卫士循环水处理（北京）有限公司 | Comprehensive disposal system special for zero emission of thermal power plant |
| CN105464725A (en) * | 2015-12-31 | 2016-04-06 | 武汉凯迪电力工程有限公司 | Direct-air-cooling power generation system with natural ventilation cooling tower |
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