CN103539215B - Sewage treatment systems and technique - Google Patents
Sewage treatment systems and technique Download PDFInfo
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- CN103539215B CN103539215B CN201310461047.3A CN201310461047A CN103539215B CN 103539215 B CN103539215 B CN 103539215B CN 201310461047 A CN201310461047 A CN 201310461047A CN 103539215 B CN103539215 B CN 103539215B
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The water smoke device that Sewage treatment systems disclosed by the invention comprises fly-ash separator and is communicated with source of sewage, sealing chamber, sealed separation is evaporation cavity and the air-inlet cavity be communicated with evaporation cavity and return air chamber, and the waterfog head of water smoke device is located at evaporation cavity; Waste-heat recoverer and the first condenser, fly-ash separator, waste-heat recoverer and the first condenser are located at air-inlet cavity successively, the heat transferring medium chamber of the first condenser is communicated with the sewer line of water smoke device, and the heat transfer tube of waste-heat recoverer, through air-inlet cavity, is communicated with return air chamber and evaporation cavity; Air heat exchanger, is communicated with air-inlet cavity and return air chamber; Start well heater, be located at evaporation cavity, to water smoke heating in evaporation cavity when starting for Sewage treatment systems; Blower fan, is located at sealing chamber, flows for driving gas.Said system start after by absorption air in heat energy as calorie source water smoke being heated into comparatively high temps wet air, the energy consumption of sewage disposal can be reduced.The invention also discloses a kind of sewage treatment process.
Description
Technical field
The present invention relates to technical field of sewage, more specifically, relate to a kind of Sewage treatment systems and technique.
Background technology
In recent years, along with the development of science and technology and the progress of society, environmental problem was increasingly serious.Wherein, sewage pollution problem compares stubborn problem in numerous environmental problem.The mode of sewage disposal generally includes Physical, chemical method, biological process etc.But in the last few years, adopt method of evaporation to the advantage of sewage disposal owing to having it original in application aspect, and be more and more subject to the favor of people.Method of evaporation to the principle that sewage processes is: evaporation sewage, and dirty water pollutant, by mummification, then to the comparatively high temps wet air dedusting obtained after evaporation and removing objectionable impurities, finally realizes the process of sewage.
We know, the heat absorbed when the liquid rotating of unit mass becomes synthermal steam is called the latent heat of vaporization, are called for short vaporization heat.Generally, make water be five times at the heat that the evaporation of its boiling point is completely required and the water of equivalent is heated to 100 DEG C of heats consumed from 1 DEG C.Visible, adopt method of evaporation to dispose of sewage, very many heat energy will be consumed, finally cause sewage disposal energy consumption high.
In order to solve the problem, in sewage water treatment method described in Chinese patent CN1207462, sewage is ejected with the form of water smoke, then to water smoke heating evaporation, heat can be made to be fully utilized because water smoke is easy to evaporation, and then the heat energy needed in reduction evaporative process, finally can reduce energy consumption.But in this process, still need special for thermal source preheating (such as electrically heated), by heat source continuously thus provide sewage water smoke evaporate required for heat energy.This mode of disposing of sewage shifts to an earlier date preheating to air from start to finish, still needs to consume very many heat energy.The energy consumption of this sewage treatmentmethod does not obviously reduce.
Summary of the invention
The object of this invention is to provide a kind of Sewage treatment systems, to consume energy in sewage treatment process higher problem to solve the sewage water treatment method provided in background technology.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
Sewage treatment systems, the water smoke device comprising fly-ash separator and be communicated with source of sewage, described Sewage treatment systems also comprises:
Sealing chamber, described sealing chamber sealed separation is evaporation cavity and the air-inlet cavity be communicated with described evaporation cavity and return air chamber, and the waterfog head of described water smoke device is arranged at described evaporation cavity;
Waste-heat recoverer and the first condenser, described fly-ash separator, waste-heat recoverer and the first condenser are set in turn in described air-inlet cavity, and the heat transferring medium chamber of described first condenser is connected with the sewer line of described water smoke device, the heat transfer tube of described waste-heat recoverer passes described air-inlet cavity, to be communicated with described return air chamber and described evaporation cavity;
Air heat exchanger, is communicated with described air-inlet cavity and described return air chamber;
Start well heater, be arranged at described evaporation cavity, to the water smoke heating in described evaporation cavity when starting for described Sewage treatment systems;
Blower fan, is arranged at described sealing chamber, flows for driving gas.
Preferably, in above-mentioned Sewage treatment systems, also comprise air-energy water-heater, the freezing end of described air-energy water-heater is arranged at described air-inlet cavity as the second condenser, and the radiating end of described air-energy water-heater is arranged at described return air chamber as thermal source.
Preferably, in above-mentioned Sewage treatment systems, described second condenser is arranged between described first condenser and described air heat exchanger.
Preferably, in above-mentioned Sewage treatment systems, described blower fan is arranged between the radiating end of described air heat exchanger and described air-energy water-heater.
Preferably, in above-mentioned Sewage treatment systems, the inlet channel that described water smoke device is connected with source of sewage is provided with filtration unit.
Preferably, in above-mentioned Sewage treatment systems, described water smoke device comprises the high pressure plunger pump, energy storage, pressure regulator valve and the described waterfog head that connect successively, and described high pressure plunger pump, energy storage and pressure regulator valve are arranged between described filtration unit and described waterfog head.
Preferably, in above-mentioned Sewage treatment systems, described waterfog head is arranged on the position near the outlet of described return air chamber in described evaporation cavity.
Preferably, in above-mentioned Sewage treatment systems, also comprise the active carbon adsorber be arranged between described fly-ash separator and described waste-heat recoverer.
Based on the above-mentioned Sewage treatment systems provided, present invention also offers a kind of sewage treatment process, this technique comprises the following steps:
To sewage atomization process, obtain water smoke;
By comparatively high temps dry air to described water smoke heating evaporation, obtain comparatively high temps wet air;
To comparatively high temps wet air successively dedusting, obnoxious flavour absorption;
Condensation, through the comparatively high temps wet air of adsorption treatment, obtains lesser temps dry air and water of condensation;
By lesser temps dry air and air heat exchange, make it to become described comparatively high temps dry air.
Preferably, in above-mentioned sewage treatment process, condensation, through the comparatively high temps wet air of adsorption treatment, realizes especially by multiple condensation.
Sewage treatment systems working process provided by the invention is as follows: by being arranged on the waterfog head ejection water smoke of evaporation cavity after sewage enters into water smoke device, start the air of well heater when whole Sewage treatment systems starts in heating evaporation chamber to realize the heating evaporation to water smoke.After water smoke is evaporated into comparatively high temps wet air, pollutent is precipitated formation dust, along with comparatively high temps wet air enters into air-inlet cavity, by fly-ash separator dedusting, because comparatively high temps wet air has higher temperature, the wet air of comparatively high temps is realized to the air heating through waste-heat recoverer by waste-heat recoverer heat exchange, realize energy recovery to utilize, after waste-heat recoverer, comparatively high temps wet air temperature decreases, again through the first condenser condenses, the heat heating that the while that the temperature of comparatively high temps wet air reducing further, the first condenser absorbs enters the sewage of waterfog head, moisture is discharged by further condensation formation water of condensation simultaneously, so far comparatively high temps wet air becomes lesser temps dry air, and then enter into air heat exchanger and air heat exchange.Air after heat exchange reenters the comparatively high temps dry air as heating water smoke in evaporation cavity after waste-heat recoverer heating, and then start next sewage disposal circulation, in whole treating processes, blower fan provides power for gas flow, start well heater air heating can be closed to during design temperature, gas in whole Sewage treatment systems circulates in sealed environment, and using air as energy derive, achieves the evaporation to water smoke.
Can be drawn by above-mentioned working process, in Sewage treatment systems provided by the invention working process upon actuation, adopt air as the energy source of sewage disposal, namely by absorbing heat energy in air as calorie source water smoke being heated into comparatively high temps wet air, special thermal source is adopted to air heating to realize the evaporation of water smoke compared to needing from start to finish of providing in background technology, the Sewage treatment systems that the embodiment of the present invention provides is more energy-conservation, can reduce the energy consumption of sewage treatment process.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the Sewage treatment systems that the embodiment of the present invention provides;
Fig. 2 is the another kind of structural representation of the Sewage treatment systems that the embodiment of the present invention provides;
Fig. 3 is another structural representation of the Sewage treatment systems that the embodiment of the present invention provides;
Fig. 4 is the schematic flow sheet of the sewage treatment process that the embodiment of the present invention provides.
In above-mentioned Fig. 1-Fig. 3, solid arrow represents air flow line in air-inlet cavity C, and dotted arrow represents air flow line in the B of return air chamber.
Embodiment
The Sewage treatment systems that the embodiment of the present invention provides, reduces the energy consumption of the sewage water treatment method described in background technology in sewage treatment process.
Technical scheme in the embodiment of the present invention is understood better in order to make those skilled in the art person, and enable the above-mentioned purpose of the embodiment of the present invention, feature and advantage become apparent more, below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is described in further detail.
Please refer to accompanying drawing 1, the figure shows a kind of structure of the Sewage treatment systems that the embodiment of the present invention provides.The Sewage treatment systems that the embodiment of the present invention provides, comprise be communicated with source of sewage water smoke device, sealing chamber 20, fly-ash separator 17, waste-heat recoverer 15, first condenser 9, air heat exchanger 12, start well heater and blower fan 13.
Water smoke device for the treatment of sewage, to become tiny atomizing droplet.Water smoke device is communicated with source of sewage, and the inlet channel of water smoke device is under normal circumstances provided with water pump (Piping Centrifugal Pumps 2 such as shown in Fig. 3) to realize the conveying of sewage.Source of sewage can be sewage lagoon, also can for be specifically designed to store sewage Water Tank 1(as shown in Figure 3), sewage is extracted out from source of sewage and is sent to water smoke device and is atomized by water pump in the course of the work.
Sealing chamber 20 is places that whole Sewage treatment systems is disposed of sewage, for sewage disposal provides space, sealing chamber 20 sealed separation is evaporation cavity A, air-inlet cavity C and return air chamber B, evaporation cavity A is that place occurs water smoke, the waterfog head 18 of water smoke device is arranged in evaporation cavity A, and the water smoke of its ejection is become comparatively high temps wet air by evaporation in evaporation cavity A.Evaporation cavity A is communicated with return air chamber B with air-inlet cavity C, to realize the circulation of gas in sewage treatment process.
Fly-ash separator 17, waste-heat recoverer 15 and the first condenser 9 are set in turn in air-inlet cavity C, the heat transfer tube of waste-heat recoverer 15 is through air-inlet cavity C, to be communicated with return air chamber B and evaporation cavity A, first condenser 9 is set in turn in air-inlet cavity C, and the heat transferring medium chamber of the first condenser 9 is connected with the sewer line of water smoke device, for heating the sewage entering into waterfog head 18.Sewage becomes water smoke after the process of water smoke device, comparatively high temps wet air is formed by after the heating of comparatively high temps dry air in evaporation cavity A, comparatively high temps wet air enters into air-inlet cavity C, successively by fly-ash separator 17 dedusting, through waste-heat recoverer 15 and the air heat-exchange in waste-heat recoverer 15, after heat exchange, enter into the first condenser 9 condensation again, the water of condensation generated after condensation is drained in condensation pond 21 by water shoot, finally realizes sewage disposal.
Air heat exchanger 12 is communicated with air-inlet cavity C and return air chamber B, normal conditions air heat exchanger 12 comprises shell side and tube side, in the heat transfer process of reality, comparatively high temps wet air becomes lesser temps dry air after waste-heat recoverer 15 and the first condenser 9, lesser temps dry air enters into air heat exchanger 12 and air heat exchange, the concrete shell side that can enter into air heat exchanger 12 and the air heat exchange through tube side, the heat energy absorbing air improves temperature, gas after intensification becomes comparatively high temps dry air, evaporation cavity A is entered into by return air chamber B, to the water smoke heating evaporation in evaporation cavity A.
The Sewage treatment systems that the embodiment of the present invention provides, working process is as follows:
Waterfog head 18 by being arranged on evaporation cavity A after sewage enters into water smoke device sprays water smoke, starts the gas of well heater when whole Sewage treatment systems starts in the A of heating evaporation chamber to realize the heating evaporation to water smoke.After water smoke is evaporated into comparatively high temps wet air, pollutent is precipitated formation dust, along with comparatively high temps wet air enters into air-inlet cavity C, by fly-ash separator 17 dedusting, because comparatively high temps wet air has higher temperature, comparatively high temps wet air is realized to the gas heating through waste-heat recoverer 15 by waste-heat recoverer 15 heat exchange, realize energy recovery to utilize, comparatively high temps wet air temperature through waste-heat recoverer 15 decreases, again through the first condenser 9 condensation, the temperature of comparatively high temps wet air reduces further, and moisture is wherein discharged by further condensation formation water of condensation, so far comparatively high temps wet air becomes lesser temps dry air, and then enter into air heat exchanger 12 and air heat exchange, air after heat exchange reenters the comparatively high temps dry air as heating water smoke in evaporation cavity A after waste-heat recoverer 15 heats, and then start next sewage disposal circulation, in whole treating processes, blower fan 13 provides power for gas flow, start well heater air heating can be closed to during design temperature, gas in whole waste disposal plant circulates in sealed environment, and using air as energy derive, realize the evaporation to water smoke.
Can be drawn by above-mentioned working process, in the Sewage treatment systems that the embodiment of the present invention provides working process upon actuation, adopt air as the energy source of sewage disposal, namely by absorbing heat energy in air as calorie source water smoke being heated into comparatively high temps wet air, special thermal source (such as electric heater etc.) is adopted to air heating to realize the evaporation of water smoke compared to needing from start to finish of providing in background technology, obviously, the Sewage treatment systems that the embodiment of the present invention provides is more energy-conservation, can reduce the energy consumption of sewage treatment process.
In the process of condensation comparatively high temps wet air, more thorough in order to what realize comparatively high temps wet air condensation, to reach the abundant recovery of water of condensation, in the Sewage treatment systems that the embodiment of the present invention provides, adopt multi-stage condensing device to implement condensation.Certainly in order to realize condensation effect, the condensing capacity of every grade of condenser is different.Concrete, please refer to accompanying drawing 2, the Sewage treatment systems that the embodiment of the present invention provides also comprises air-energy water-heater 11, and the freezing end of air-energy water-heater 11 is arranged in air-inlet cavity C as the second condenser 10, and the radiating end 14 of air-energy water-heater 11 is arranged in the B of return air chamber as thermal source.In this technical scheme, by the freezing end of air-energy water-heater 11 as the second condenser 10 condensation, because the freezing end temperature of air-energy water-heater 11 is lower, can further to the condensation of gas through the first condenser 9, and then raising condenser efficiency, make through the second condenser 10 gas with the process of air heat exchanger 12 heat exchange in absorb more energy using as the energy heating water smoke, in addition, after the heat absorption that freezing end absorbs by the radiating end 14 of air-energy water-heater 11 in the B of return air chamber to air heating, the temperature of the comparatively high temps dry air carried by return air chamber B can be improved, and then can improve water smoke heating efficiency.
Blower fan 13 is as the propulsion source of driving gas flowing in whole Sewage treatment systems, any position (i.e. any position of evaporation cavity A, air-inlet cavity C and return air chamber B) of system gas flow passage can be arranged under normal circumstances, but there will be a problem in this case, the position how arranging blower fan 13 more dexterously can either provide power for the flowing of gas to make blower fan 13, and gas can not be made again to cause heat exchange insufficient due to the impact driven by blower fan 13.For this reason, contriver finds in the process implementing the Sewage treatment systems that the embodiment of the present invention provides, after condenser (first condenser 9 or the second condenser 10) condensation, the lower dry air of temperature due to temperature minimum, with air heat transfer process, there is larger heat absorption capacity, the energy in air very promptly can be absorbed in air heat exchanger 12, and the comparatively high temps dry air flowed out from air heat exchanger 12, heated by the radiating end 14 of air-energy water-heater 11 further, now the temperature of comparatively high temps dry air raises further, comparatively high temps dry air is probably back in air heat exchanger 12 herein, the gas heat absorption ability in air heat exchanger 12 is caused to reduce with the gas converting heat in air heat exchanger 12, in order to head it off, blower fan 13 in the Sewage treatment systems that the embodiment of the present invention provides is arranged between the radiating end 14 of air heat exchanger 12 and air-energy water-heater 11, this kind of set-up mode both can not affect gas in air heat exchanger 12 with the heat exchanger effectiveness of air, the comparatively high temps dry air that the radiating end 14 through air-energy water-heater 11 can be made again to heat flows to evaporation cavity A as soon as possible after heating, avoid backflow or with the gas converting heat in air heat exchanger 12, the efficiency of sewage disposal can be improved, further reduction energy consumption.
We know, sewage is divided into many types due to its production process difference, such as, in some sewage, particulate matter is more, chemical substance poisonous in some sewage is more, needs obviously to consider that sewage is on the impact of equipment when processing these sewage, and on the impact of environment after sewage disposal.In some sewage, particulate matter is more, and these sewage directly enter into water smoke device meeting damage equipment afterwards, in order to head it off, the inlet channel that in the Sewage treatment systems that the embodiment of the present invention provides, water smoke device is connected with source of sewage are provided with filtration unit.Concrete, filtration unit can adopt all kinds, and the embodiment of the present invention is not restricted the type of filtration unit.Certainly, filtration unit can adopt single-stage filtration unit, also can adopt Multistage filtering device.Please refer to accompanying drawing 3, the filtration unit in the Sewage treatment systems that the embodiment of the present invention provides comprises the suspended substance that the sand-bed filter 3(filtering distributed successively to water smoke device direction is greater than 50 μm of particle diameters) and core consider the suspended substance that device 4(filtering is greater than 20 μm of particle diameters).Certainly, also can adopt NF(nanofiltration) or RO(reverse osmosis) equipment to sewage implement embrane method filter.
As a same reason, for the sewage that there is harmful chemical, after water smoke is evaporated in evaporation cavity A, suspended substance in sewage is separated out by mummification, also can produce gasified harmful substance matter (such as ammonia) thereupon, if do not process these gasified harmful substance matter, so in the process of condensation, these gasified harmful substance matter can be added in water of condensation and are discharged, and finally still pollute the environment.In order to head it off, the Sewage treatment systems provided in the embodiment of the present invention also comprises the active carbon adsorber 16 be arranged between fly-ash separator 17 and waste-heat recoverer 15, can adsorb the gasified harmful substance matter be present in comparatively high temps wet air.Select to be arranged between fly-ash separator 17 and waste-heat recoverer 15 to active carbon adsorber 16 in above-mentioned preferred version, except realizing the basic function of active carbon adsorber 16, also avoid active carbon adsorber 16 attract dust to cause the problem of Premature saturation, also can avoid water of condensation partially absorbing gasified harmful substance matter in waste-heat recoverer 15 heat transfer process simultaneously.
Water smoke device can adopt water smoke device common on market, the embodiment of the invention discloses a kind of concrete water smoke device, please refer to shown in accompanying drawing 3, this water smoke device comprises high pressure plunger pump 5, energy storage 6, pressure regulator valve 7 and waterfog head 18, wherein, high pressure plunger pump 5, energy storage 6 and pressure regulator valve 7 are arranged between filtration unit and waterfog head 18.When to sewage disposal, sewage is by entering into high pressure plunger pump 5 after filtration unit process, and sewage is drained in energy storage 6 with high pressure conditions by high pressure plunger pump 5.Now sewage has larger pressure, sprays form water smoke under the regulating effect of pressure regulator valve 7 from waterfog head 18.Above-mentioned high pressure plunger pump 5 can adopt high pressure centrifugal pump etc., and other can realize conveying to sewage, and can improve the liquid transporting apparatus of sewage pressure.Preferably, the pipeline of above-mentioned water smoke device is provided with tensimeter 8, shows numerical value according to tensimeter 8 to facilitate pressure regulator valve 7 is operated.
The startup well heater major function provided in the present embodiment is to provide the heat needed when whole Sewage treatment systems is opened, with the water smoke of vaporize water fog spray head ejection.Concrete, above-mentioned startup well heater can be the waste heat apparatus of electric heater 19, solar heater, biogas or coal power generation.Because the function starting well heater is to the water smoke heating evaporation in evaporation cavity A, so start each position that well heater can be arranged on evaporation cavity A, but in the working process of reality, start well heater often determines sewage disposal efficiency to the vaporization efficiency of water smoke.If start well heater to fail fully to heat water smoke, so can there is more drop of not vaporizing, finally cause the pollutent be present in these drops to separate out, and then affect the treatment effect of sewage.In order to head it off, the Sewage treatment systems that the embodiment of the present invention provides, start the outlet that well heater is preferably arranged on return air chamber B, this kind of decoration form can make the comparatively high temps dry air after starting heater heats and the heat exchange of water smoke long period, can improve vaporization efficiency.Certainly after whole Sewage treatment systems normally works, start well heater to quit work, in such cases, preferably waterfog head is arranged on one end that the outlet of evaporation cavity A and return air chamber C is close, the comparatively high temps dry air very first time that this kind of decoration form makes the outlet through return air chamber B discharge is to water smoke heating evaporation, this kind of mode can extend water smoke by evaporation the flow process of process, and then improve heating efficiency, and then reduce energy consumption.
Preferably, in above-mentioned Sewage treatment systems, waste-heat recoverer 15 can be the back-shaped pipe of multilayer stainless steel.More preferred, when waste-heat recoverer 15 adopts multilayer stainless steel back-shaped pipe, the layout place plane of the back-shaped pipe of multilayer stainless steel is perpendicular with direction of the wind comes from.In the process of heat exchange, the comparatively high temps wet air in air-inlet cavity C and waste-heat recoverer 15 heat exchange unavoidably produce water of condensation, and therefore the below of waste-heat recoverer 15 is provided with captation.In like manner, the first condenser 9 in the present embodiment and the second condenser 10 also have captation, and captation can be the condensation pond 21 be connected with the water pipe of each device above-mentioned.Waste-heat recoverer 15, first condenser 9 and the second condenser 10 can produce water of condensation in the process of work, and in like manner, above-mentioned three devices preferably adopt parts of stainless steel.
The heat transfer tube of air heat exchanger 12 can be stainless steel tubulation, and tubulation is arranged vertically with the wind comes from, as a same reason, the radiating end 14 of air-energy water-heater 11 also can be the back-shaped pipe of stainless steel, being arranged vertically with the wind comes from, is the circulating hot water of air-energy water-heater output in pipe.Preferably, the parts that above-mentioned air-energy water-heater 11 is positioned at sealing chamber 20 outside are provided with sealing thermal insulation thermofin, to reduce heat energy dissipation.
Fly-ash separator in the embodiment of the present invention can adopt sack cleaner, can certainly adopt other cleaning apparatus.In like manner, fly-ash separator is provided with sealing thermal insulation thermofin, can heat energy dissipation be reduced.
By above-mentioned introduce known, the Sewage treatment systems that the embodiment of the present invention provides is closed system, and whole system completes in sealing chamber 20 process of sewage, not to airborne release gas, the dry-matter produced in evaporative process is convenient to process, reaches the target of sewage disposal zero release.And native system is envrionment temperature higher (certainly in its temperature range allowed, being usually not less than 15 DEG C), it is higher to the efficiency of sewage disposal, and correspondingly, energy consumption is also fewer.Based on this advantage, at global warming, under the trend that temperature raises year by year, the Sewage treatment systems that the embodiment of the present invention provides has good application prospect.
Based on the Sewage treatment systems that the embodiment of the present invention provides, the embodiment of the present invention additionally provides a kind of sewage treatment process, please refer to accompanying drawing 4, and this technique comprises the following steps:
S401, to sewage atomization process, obtain water smoke.
In this step, be atomized sewage by atomisation unit, form water smoke, namely become tiny atomizing droplet, water smoke device is communicated with source of sewage under normal circumstances, the inlet channel of water smoke device is provided with water pump to realize the power conveying of sewage.
S402, by comparatively high temps dry air to water smoke heating evaporation, obtain comparatively high temps wet air.
Pass through comparatively high temps dry air in this step to water smoke heating evaporation, the suspended substance in sewage is separated out by mummification, and water smoke is evaporated into wet air, obtains comparatively high temps wet air, thus completes the transformation of sewage to comparatively high temps wet air.
S403, to the dedusting of comparatively high temps wet air.
This step is passed through the dedusting of comparatively high temps wet air, and then the suspended substance realized in sewage is removed.Usually the conventional fly-ash separators such as sack cleaner are adopted to implement in this dust removal step.In this process, cleaning apparatus adopts thermal insulation layer insulation, and when making dust by filtering, comparatively high temps wet air enthalpy does not reduce.
S404, harmful gas adsorption is implemented to the comparatively high temps wet air after dedusting.
Gasified harmful substance matter may be also had in comparatively high temps wet air after dedusting, be discharged if direct condensation can make gasified harmful substance matter dissolve in water of condensation, still contaminate environment, for this reason, in this step, by reaching to obnoxious flavour absorption the object removing gasified harmful substance matter.Concrete, active carbon adsorber 16(can be adopted as shown in figures 2 and 3) to obnoxious flavour physical adsorption.Certainly according to the difference of sewage kind, the chemisorption apparatus of other kind can be adopted to implement this step.
S405, condensation, through the comparatively high temps wet air of adsorption treatment, obtain lesser temps dry air and water of condensation.
Comparatively high temps wet air after obnoxious flavour absorption is condensed in this step, and the condensate moisture in gas becomes Water in Condenser to be discharged, and becomes comparatively low temperature dry air.Under normal circumstances, multi-stage condensing device can be adopted comparatively high temps wet air condensation, to reach good condensation effect.
S406, by lesser temps dry air and air heat exchange, make it to become comparatively high temps dry air, enter step S402.
By the lesser temps dry air that obtains in step S405 and air heat exchange, make it the heat energy fully absorbed in air, become comparatively high temps dry air, the comparatively high temps dry air produced in this step namely as in step S402 to the comparatively high temps dry air of water smoke heating.
In addition, the Sewage treatment systems that the embodiment of the present invention provides and technique are applicable to the process to multiple sewage, and because it adopts method of evaporation to dispose of sewage, and energy consumption is low, so more obvious for the high salt wastewater treatment efficiency that parsing amount is large.
Each embodiment in this specification sheets all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. Sewage treatment systems, the water smoke device comprising fly-ash separator (17) and be communicated with source of sewage, is characterized in that, described Sewage treatment systems also comprises:
Sealing chamber (20), described sealing chamber (20) sealed separation is evaporation cavity (A) and the air-inlet cavity (C) be communicated with described evaporation cavity (A) and return air chamber (B), and the waterfog head (18) of described water smoke device is arranged at described evaporation cavity (A);
Waste-heat recoverer (15) and the first condenser (9), described fly-ash separator (17), waste-heat recoverer (15) and the first condenser (9) are set in turn in described air-inlet cavity (C), and the heat transferring medium chamber of described first condenser (9) is connected with the sewer line of described water smoke device, the heat transfer tube of described waste-heat recoverer (15) passes described air-inlet cavity (C), to be communicated with described return air chamber (B) and described evaporation cavity (A);
Air heat exchanger (12), is communicated with described air-inlet cavity (C) and described return air chamber (B);
Start well heater, be arranged at described evaporation cavity (A), to the water smoke heating in described evaporation cavity (A) when starting for described Sewage treatment systems;
Blower fan (13), is arranged at described sealing chamber (20), flows for driving gas.
2. Sewage treatment systems according to claim 1, it is characterized in that, also comprise air-energy water-heater (11), the freezing end of described air-energy water-heater (11) is arranged at described air-inlet cavity (C) as the second condenser (10), and the radiating end (14) of described air-energy water-heater (11) is arranged at described return air chamber (B) as thermal source.
3. Sewage treatment systems according to claim 2, is characterized in that, described second condenser (10) is arranged between described first condenser (9) and described air heat exchanger (12).
4. Sewage treatment systems according to claim 3, it is characterized in that, described blower fan (13) is arranged between the radiating end (14) of described air heat exchanger (12) and described air-energy water-heater (11).
5. Sewage treatment systems according to claim 1, is characterized in that, the inlet channel that described water smoke device is connected with source of sewage is provided with filtration unit.
6. Sewage treatment systems according to claim 5, it is characterized in that, described water smoke device comprises the high pressure plunger pump (5), energy storage (6), pressure regulator valve (7) and the described waterfog head (18) that connect successively, and described high pressure plunger pump (5), energy storage (6) and pressure regulator valve (7) are arranged between described filtration unit and described waterfog head (18).
7. Sewage treatment systems according to claim 1, is characterized in that, described waterfog head (18) is arranged in described evaporation cavity (A) near the position that described return air chamber (B) exports.
8. according to the Sewage treatment systems in claim 1-7 described in any one, it is characterized in that, also comprise the active carbon adsorber (16) be arranged between described fly-ash separator (17) and described waste-heat recoverer (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461047.3A CN103539215B (en) | 2013-09-30 | 2013-09-30 | Sewage treatment systems and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461047.3A CN103539215B (en) | 2013-09-30 | 2013-09-30 | Sewage treatment systems and technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103539215A CN103539215A (en) | 2014-01-29 |
| CN103539215B true CN103539215B (en) | 2015-08-12 |
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| CN102052812A (en) * | 2010-12-20 | 2011-05-11 | 东南大学 | Method and device for preparing fluidized ice by utilizing air condensation-evaporation composite mode |
| CN102060346A (en) * | 2009-11-12 | 2011-05-18 | 张迎立 | Air energy water mist evaporation water treatment system and process |
| CN202430029U (en) * | 2011-09-29 | 2012-09-12 | 中国科学院广州能源研究所 | Solar adsorption type sea water desalinization device with heat return and mass recovery circulation |
| CN102964019A (en) * | 2012-11-30 | 2013-03-13 | 山东大明消毒科技有限公司 | Energy-saving evaporation treatment process of high-salinity wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060346A (en) * | 2009-11-12 | 2011-05-18 | 张迎立 | Air energy water mist evaporation water treatment system and process |
| CN102052812A (en) * | 2010-12-20 | 2011-05-11 | 东南大学 | Method and device for preparing fluidized ice by utilizing air condensation-evaporation composite mode |
| CN202430029U (en) * | 2011-09-29 | 2012-09-12 | 中国科学院广州能源研究所 | Solar adsorption type sea water desalinization device with heat return and mass recovery circulation |
| CN102964019A (en) * | 2012-11-30 | 2013-03-13 | 山东大明消毒科技有限公司 | Energy-saving evaporation treatment process of high-salinity wastewater |
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