CN102249353A - Freeze-thaw inverted-stage integrated wastewater recycling treatment equipment - Google Patents
Freeze-thaw inverted-stage integrated wastewater recycling treatment equipment Download PDFInfo
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- CN102249353A CN102249353A CN2011101021321A CN201110102132A CN102249353A CN 102249353 A CN102249353 A CN 102249353A CN 2011101021321 A CN2011101021321 A CN 2011101021321A CN 201110102132 A CN201110102132 A CN 201110102132A CN 102249353 A CN102249353 A CN 102249353A
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- freeze thawing
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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
- Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
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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 invention belongs to the technical field of environmental protection, and specifically relates to wastewater recycling treatment equipment, which is based on freezing and melting processes, utilizes a freeze-thaw inverted-stage integrated technology and utilizes natural energy to freeze and remove pollutants (comprising organic matters, toxic and harmful pollutants, nutrition salts, salts and the like) from wastewater. The wastewater recycling treatment equipment is characterized in that: the equipment comprises a wastewater buffer tank (1), a cold-heat exchanger (2), freeze-thaw inverted-stage integrated devices (3 and 4), a supply water adjusting tank (5) and a high-concentration wastewater collection tank (6), wherein the cold-heat exchanger employs a clamping tube type, the inside of the cold-heat exchanger is divided by table-flaps, one end of the cold-heat exchanger is a wastewater inlet and recycled water outlet and the other end is an ice-phase melted water inlet and wastewater outlet, and cold and heat exchange between the wastewater and the ice-phase melted water is realized through cross-flow among the table-flaps; and the freeze-thaw inverted-stage integrated devices are equipped with three freeze-thaw tanks inside, the three freeze-thaw tanks are connected with pipelines in turn, one end of each freeze-thaw tank is a wastewater and supply water inlet and the other end is a high-concentration wastewater and ice-phase melted water outlet, and the three freeze-thaw tanks are connected with the high-concentration wastewater collection tank. The equipment achieves no pollution and no power loss during working process, and has the advantages of simplicity in operation, energy conservation, good treatment effect, and the like.
Description
Technical field
The invention belongs to technical field of waste water processing, particularly utilize the freeze thawing of naturally frozen process to fall the incorporate waste water reclamation treatment facility of level.
Background technology
Northern China is long winter, and the weather condition that temperature is low cause sewage work's operation difficulty.Water treating equipment need special protection could continue operation in the winter time on the one hand, and the biological sewage facture needs special bacterial classification just can reach the water outlet effect in the winter time on the other hand, has so just strengthened the investment to sewage disposal.
Equipment patent with the Refrigeration Technique application has following field at present: the one, and the sea water desaltination field, (application number: 200510022054.9) patent has mainly solved the water vapour that triple point that existing vacuum freezing sea water desaltination exists produces and is difficult to remove " apparatus for sea water desalting by rotating jet-flow vacuum freezing " of Wei Shiying application, does not coagulate 1 gas accumulation during vacuum decompression in the seawater and destroys problems such as vacuum, the big supporting complexity of steam ejector pump energy consumption; Lee is with " method of preparing low-salinity water for farmland irrigation by sea water atomization refrigeration " (application number: 200810052857.2) use the atomization refrigeration device in the patent seawater is desalinated processing of applications such as power.The 2nd, waste water desalination field, 200780031535.3) and " use compressed air energy and/or from the thermal energy storage system of the refrigerated water of demineralising process " (application number: 200780046557.7) use freezing method in three patents and carry out desalting treatment this M ENI of the U.S. this and Borrow Li Baiman are at " adopting the desalting method and the system of compressed air energy system " (application number 200780019987.X), " adopting the desalting method and the system of continuous helical slush removal system " of application (application number:; The 3rd, waste water scrubbing field, (application number: 201010104868.8) patent, Li Hongjun etc. invent " combined equipment for treating high-salinity organic wastewater " (application number: 201010248025.5) patent in inventions " utilization comprises the sewage and wastewater treatment system of wind energy, sun power, cold energy natural energy " such as expense is peaceful.Above-mentioned patent is all used Refrigeration Technique, but still has a following problem: 1, refrigerating apparatus is complicated and can't artificially control substantially; 2, freeze thawing separating process can consume great amount of manpower and material resources.
The present invention adopts the freeze thawing of naturally frozen process to fall the incorporate waste water reclamation treatment facility of level, can effectively utilize natural energy to make the water outlet water quality reaching standard and efficiently utilizes, and has characteristics such as facility investment is low, simple to operate, running cost is low.
Summary of the invention
Goal of the invention
The objective of the invention is to fill up the blank of prior art, provide a kind of novel economic environmental protection employing naturally frozen process freeze thawing fall the incorporate waste water reclamation treatment facility of level.
Technical scheme
The present invention has following structure to realize:
One cover falls the incorporate waste water reclamation treatment facility of level based on the freeze thawing of naturally frozen process, it is characterized in that comprising that waste water dashpot (1), cool-heat-exchanger (2), freeze thawing fall a level integrated apparatus (3 and 4), supplementary feed regulating tank (5), high-concentration waste water receiving tank (6).Described waste water dashpot (1) includes the mouth of a river and water outlet; Described cold-heat-exchanging exchange system (2) comprises first water inlet pipe (2.1), second water inlet pipe (2.6), first water shoot (2.8), second water shoot (2.3) and first valve (2.2), second valve (2.4), the 3rd valve (27); What level integrated apparatus (3) was fallen in described freeze thawing comprises the freeze thawing groove, water inlet pipe, water shoot and valve, wherein the freeze thawing groove comprises one-level freeze thawing groove (3.1), secondary freeze thawing groove (3.2) and three grades of freeze thawing grooves (3.3), water inlet pipe comprises the 3rd water inlet pipe (3.6), the 4th water inlet pipe (3.9), the 5th water inlet pipe (3.5), water shoot comprises the 3rd water shoot (3.12), and valve comprises the 4th valve (3.7), the 5th valve (3.10), the 6th valve (3.13), the 7th valve (3.4), the 8th valve (3.8), the 9th valve (3.11), the tenth valve (3.16), the 11 valve (3.15) and the 12 valve (3.14).Level integrated apparatus (4) and freeze thawing are fallen in described freeze thawing, and to fall grade structure of integrated apparatus (3) just the same; Described supplementary feed regulating tank (5) comprises water-in and water outlet; Described high-concentration waste water receiving tank (6) comprises water-in and water outlet.
The water inlet of described cool-heat-exchanger (2) is being connected the pipeline that two covers drive in the wrong direction respectively with water outlet, wherein water inlet is connected with first water shoot (2.8) with first water inlet pipe (2.1), uses first valve (2.2) and the tenth valve (3.16), the 11 valve (3.15), the 12 valve (3.14) and second valve (2.4) to regulate respectively; Water outlet is connected with second water shoot (2.3) with second water inlet pipe (2.6), uses the 3rd valve (2.7) and second valve (2.4) to regulate respectively.
A described freeze thawing level integrated apparatus (3) has three freeze thawing grooves.The water inlet of one-level freeze thawing groove (3.1) is connected with the 5th water inlet pipe (3.5) with second water inlet pipe (2.6) that walks abreast, and uses the 3rd valve (2.7) and the 7th valve (3.4) to regulate respectively; Water outlet is connected with first water shoot (2.8) with parallel the 3rd water inlet pipe (3.6), uses the adjusting of the 4th valve (3.7) and the tenth valve (3.16) respectively.The water inlet of secondary freeze thawing groove (3.2) is connected with the 5th water inlet pipe (3.5) with the 3rd water inlet pipe (3.6) that walks abreast, and uses the 4th valve (3.7) and the 5th valve (3.10) to regulate respectively; Water outlet is connected with first water shoot (2.8) with the 4th water inlet pipe (3.9) that walks abreast, and uses the 5th valve (3.10) and 12 valves (3.14) to regulate respectively.The water inlet of three grades of freeze thawing grooves (33) is connected with the 5th water inlet pipe (3.5) with the 4th water inlet pipe (3.9) that walks abreast, and uses the 5th valve (3.10) and the 9th valve (3.11) to regulate respectively; Water outlet is connected with the 3rd water shoot (3.12) with first water shoot (2.8) that walks abreast, and uses the 12 valve (3.14) and the 6th valve (3.13) to regulate respectively.
Described supplementary feed regulating tank (5) comprises water-in and water outlet.Water outlet is connected with the 5th water inlet pipe (3.5), uses the 7th valve (3.4), the 8th valve (3.8) and the 9th valve (3.11) to regulate respectively.
Described high-concentration waste water receiving tank (6) comprises water-in and water outlet.Water-in is connected with the 3rd water shoot (3.12), regulates with the 6th valve (3.13).
Beneficial effect
Filled up the blank of prior art, fallen a level integrated apparatus, can effectively utilize the energy that produces in natural energy and the operational process by freeze thawing; Make reuse water up to standard and can utilize again; Characteristics such as facility investment is low, simple to operate, running cost is low.
Description of drawings
Fig. 1 is the connection diagram of each device of the present invention.
Fig. 2 is the cross-sectional view of cool-heat-exchanger.
Fig. 3 falls the connection diagram of level integrated apparatus for freeze thawing.
Fig. 4 is the cross-sectional view in one-level freeze thawing pond.
Claims (12)
1. fall the incorporate waste water reclamation treatment facility of level based on the freeze thawing of naturally frozen process, it is characterized in that this equipment comprises that waste water dashpot (1), cool-heat-exchanger (2), freeze thawing fall a level integrated apparatus (3 and 4), supplementary feed regulating tank (5), high-concentration waste water receiving tank (6).
2. be to be used for buffering collection waste water according to claims 1 described waste water dashpot (1).
3. adopt clamping tube type according to claims 1 described cool-heat-exchanger, inside separates with flap; Waste water enters sleeve pipe in the cold and hot exchange groove (2) by first water inlet pipe (2.1), flows out by second water inlet pipe (2.6) again; Ice mutually melt and dissolved water and enter cool-heat-exchanger (2),, be reuse water by second water shoot (2.3) outflow at last through inner flap (2.5) by first water shoot (2.8); Waste water is realized cold and hot exchange by cross-flow with the mutually melt and dissolved water of ice between flap, and controls flow velocity and the flow that waste water enters cool-heat-exchanger by first valve (2.2) and the 3rd valve (2.7); Control flow velocity and the flow that the mutually melt and dissolved water of ice enters cold-heat-exchanging exchange system by the tenth valve (3.16), the 11 valve (3.15), the 12 valve (3.14) with second valve (2.4); The effect of cool-heat-exchanger is that the cold energy of the mutually melt and dissolved water of ice and the heat energy of waste water are carried out cold and hot exchange by cross-flow between flap, and by regulating flow and flow velocity, the wastewater temperature that cool-heat-exchanger is exported is controlled at below 6 ℃.
According to claims 1 described freeze thawing fall three freeze thawing grooves in the level integrated apparatus in refrigeration crystallization process as the freezing tank of polyphone, waste water in the freezing tank is in passing through the process of flap, freezing and crystallizing around flap, the effect of flap are the freezing and crystallizing areas that increases waste water; Waste water enters freeze thawing by second water inlet pipe (2.6) and falls one-level freeze thawing groove (3.1) in the level integrated apparatus (3), through flowing out from outlet behind the flap; Enter secondary freeze thawing groove (3.2) by the 3rd water inlet pipe (3.6), through flowing out from outlet behind the flap; Enter three grades of freeze thawing grooves (3.3) by the 4th water inlet pipe (3.9) again,, enter high-concentration waste water receiving tank (6) by the 3rd water shoot (3.12) at last through flowing out from outlet behind the flap; One-level freeze thawing groove is by the flow velocity and the flow of the 3rd valve (2.7) and the 4th valve (3.7) control waste water; Secondary freeze thawing groove is by the flow velocity and the flow of the 4th valve (3.7) and the 5th valve (3.10) control waste water; Three grades of freeze thawing grooves are controlled the flow velocity and the flow of waste water by the 5th valve (3.10) and the 6th valve (3.13).
According to claims 1 described freeze thawing fall in the level integrated apparatus three freeze thawing grooves ice melt mutually in the process as and the thawing tank that connects, the ice in the thawing tank on the flap melts by the heat of supplementary feed, forms the mutually melt and dissolved water of ice.Supplementary feed enters one-level freeze thawing groove (3.1), secondary freeze thawing groove (3.2) and three grades of freeze thawing grooves (3.3) respectively by the 5th water inlet pipe (3.5), supplementary feed melts the back mutually with the ice on the flap and forms ice mutually melt and dissolved water (being mixture of ice and water), enters cold-heat-exchanging exchange system from first water shoot (2.8) again then; One-level freeze thawing groove is by the flow velocity and the flow of the 7th valve (3.4) and the tenth valve (3.16) control supplementary feed; Secondary freeze thawing groove is by the flow velocity and the flow of the 8th valve (3.8) and the 11 valve (3.15) control supplementary feed; Three grades of freeze thawing grooves are controlled the flow velocity and the flow of supplementary feed by the 9th valve (3.11) and the 12 valve (3.14).
6. fall integrated in the level integrated apparatus according to claims 1 described freeze thawing and be meant that same freeze thawing groove both can be used as freezing tank and carried out freezing and crystallizing, can be used as thawing tank again and ice mutually and melt.One end of freeze thawing groove is the water-in of waste water and supplementary feed, and the other end is the outlet of high-concentration waste water and the mutually melt and dissolved water of ice, and three grades of freeze thawing grooves also are connected with the high-concentration waste water receiving tank.With one-level freeze thawing groove is example: second water inlet pipe (2.6) and the 3rd water inlet pipe (3.6) are respectively the water inlet pipe and the rising pipe of waste water in the refrigeration crystallization process, and the 5th water inlet pipe (3.5) is respectively to ice water inlet pipe that melts supplementary feed in the process mutually and the rising pipe of icing mutually melt and dissolved water with first water shoot (2.8); And control icing rate and the pollutent concentration in ice and liquid phase by flow velocity, flow and residence time parameter that the 3rd valve (2.7) and the 4th valve (3.7) are regulated waste water in the refrigeration crystallization process, ice the temperature, flow and the flow parameters that melt supplementary feed in the process mutually by the 7th valve (34), the 8th valve (3.8), the 9th valve (3.11) and the tenth valve (3.16), the 11 valve (3.15), the 12 valve (3.14) adjusting and control ice-melt speed and effluent quality.
7. fall the level integrated apparatus according to claims 1 described freeze thawing and adopt the level design, be meant the mutual conversion of two water (flow) directions in the freeze thawing groove; Water (flow) direction be waste water from cold-heat-exchanging exchange system (2) to the freeze thawing groove (3 or 4) again to high-concentration waste water receiving tank (6), another water (flow) direction be supplementary feed from supplementary feed regulating tank (5) to the freeze thawing groove (3 or 4) again to cold-heat-exchanging exchange system (2).This device can be according to DR equation the control effectively speed, frozen water ratio, Pollutant levels etc. of freeze thawing, realizes efficiently utilizing natural energy to remove pollutent in the waste water (comprise organism, poison pollutent, nutritive salt and salt grade).
8. according to grade grade integrated apparatus parallel connection of integrated apparatus employing two covers (or overlap) freeze thawing of claims 1 described freeze thawing, change more, realize the continuous operation of equipment by cold and hot the leading of device.
9. falling the level integrated apparatus according to claims 1 described freeze thawing can also repeat mutually to purify to ice, and the pollutants removal rate in three back regeneration frozen water of purifying can reach 97%.
10. falling the level integrated apparatus according to claims 1 described freeze thawing adopts the elevation gravity flow to design except that circulation is.
11. according to claims 1 described supplementary feed regulating tank (5) is the supplementary feed that is used for regulating heat content such as boiler feedwater and solar heating water.
12. according to claims 1 described high-concentration waste water receiving tank (6) is the high-concentration waste water that is used for collecting from discharging in the level integrated apparatus is fallen in freeze thawing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101021321A CN102249353B (en) | 2011-04-22 | 2011-04-22 | Freeze-thaw inverted-stage integrated wastewater recycling treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101021321A CN102249353B (en) | 2011-04-22 | 2011-04-22 | Freeze-thaw inverted-stage integrated wastewater recycling treatment equipment |
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| CN102249353A true CN102249353A (en) | 2011-11-23 |
| CN102249353B CN102249353B (en) | 2013-07-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420666A (en) * | 2022-09-29 | 2022-12-02 | 西南石油大学 | Positive freeze thawing soil gas permeability coefficient dynamic continuous testing system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4405349A (en) * | 1982-05-20 | 1983-09-20 | Chicago Bridge & Iron Company | Indirect-direct freeze exchange concentrator and method |
| EP0313827A2 (en) * | 1987-10-27 | 1989-05-03 | Polar Spring Corporation | Method and apparatus for purifying impure water |
| CN1792829A (en) * | 2005-11-11 | 2006-06-28 | 魏仕英 | Apparatus for sea water desalting by rotating jet-flow vacuum freezing method |
| CN101264949A (en) * | 2008-04-23 | 2008-09-17 | 天津大学 | Method for preparing low-salinity water for farmland irrigation by sea water atomization refrigeration |
| CN101454060A (en) * | 2006-04-05 | 2009-06-10 | 本·M·埃尼斯 | Desalination method and system using compressed air energy systems |
| CN101506599A (en) * | 2006-07-24 | 2009-08-12 | 本·M·埃尼斯 | Desalination method and system using a continuous helical slush removal system |
| CN101636582A (en) * | 2006-10-23 | 2010-01-27 | 班·M·艾尼斯 | Use compressed air energy and/or from the thermal energy storage system of the chilled water of desalination processes |
| CN101786678A (en) * | 2010-02-03 | 2010-07-28 | 天津城市建设学院 | Sewage and wastewater treatment system by utilizing natural energy including wind energy, solar energy and cold energy |
| CN101885567A (en) * | 2010-08-06 | 2010-11-17 | 中环（中国）工程有限公司 | Combined equipment for treating high-salinity organic wastewater |
| RU2415813C1 (en) * | 2009-11-06 | 2011-04-10 | Владимир Александрович Бабин | Device to clean water of impurities |
-
2011
- 2011-04-22 CN CN2011101021321A patent/CN102249353B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4405349A (en) * | 1982-05-20 | 1983-09-20 | Chicago Bridge & Iron Company | Indirect-direct freeze exchange concentrator and method |
| EP0313827A2 (en) * | 1987-10-27 | 1989-05-03 | Polar Spring Corporation | Method and apparatus for purifying impure water |
| CN1792829A (en) * | 2005-11-11 | 2006-06-28 | 魏仕英 | Apparatus for sea water desalting by rotating jet-flow vacuum freezing method |
| CN101454060A (en) * | 2006-04-05 | 2009-06-10 | 本·M·埃尼斯 | Desalination method and system using compressed air energy systems |
| CN101506599A (en) * | 2006-07-24 | 2009-08-12 | 本·M·埃尼斯 | Desalination method and system using a continuous helical slush removal system |
| CN101636582A (en) * | 2006-10-23 | 2010-01-27 | 班·M·艾尼斯 | Use compressed air energy and/or from the thermal energy storage system of the chilled water of desalination processes |
| CN101264949A (en) * | 2008-04-23 | 2008-09-17 | 天津大学 | Method for preparing low-salinity water for farmland irrigation by sea water atomization refrigeration |
| RU2415813C1 (en) * | 2009-11-06 | 2011-04-10 | Владимир Александрович Бабин | Device to clean water of impurities |
| CN101786678A (en) * | 2010-02-03 | 2010-07-28 | 天津城市建设学院 | Sewage and wastewater treatment system by utilizing natural energy including wind energy, solar energy and cold energy |
| CN101885567A (en) * | 2010-08-06 | 2010-11-17 | 中环（中国）工程有限公司 | Combined equipment for treating high-salinity organic wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420666A (en) * | 2022-09-29 | 2022-12-02 | 西南石油大学 | Positive freeze thawing soil gas permeability coefficient dynamic continuous testing system |
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Granted publication date: 20130724 |