CN107879529A - A kind of supercritical water reaction apparatus with desalination function - Google Patents
A kind of supercritical water reaction apparatus with desalination function Download PDFInfo
- Publication number
- CN107879529A CN107879529A CN201711056748.3A CN201711056748A CN107879529A CN 107879529 A CN107879529 A CN 107879529A CN 201711056748 A CN201711056748 A CN 201711056748A CN 107879529 A CN107879529 A CN 107879529A
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- CN
- China
- Prior art keywords
- reactor
- supercritical water
- reaction apparatus
- water reaction
- desalination function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/025—Thermal hydrolysis
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
Abstract
The invention discloses a kind of supercritical water reaction apparatus with desalination function, including reactor, the upper end of the reactor is provided with wastewater inlet and oxygen interface, pressure tap and electroheat pair interface are provided with the lateral wall of reactor, pressure gauge is provided with the pressure tap, the electroheat pair interface tube is provided with electroheat pair, secondary filter net and multiple dividing plates are disposed between the madial wall of reactor from down to up, the upper surface of each dividing plate is provided with adsorption layer, a sewage routeway is each respectively formed between the part edge of dividing plate and the madial wall of reactor, and two adjacent sewage routeway are interspersed in vertical direction, sewage through hole positioned at the top is set away from wastewater inlet, the lower end of reactor is provided with outlet of sewer and salt discharge interface.The supercritical water reaction apparatus with desalination function can substantially reduce the amount of saline deposit in the reactor, so as to avoid reactor from being blocked when handling sewage.
Description
Technical field
The invention belongs to sewage treatment equipment technical field, and in particular to a kind of supercritical water reaction dress with desalination function
Put.
Background technology
Supercritical water (Supercritical Water, abbreviation SCW) refers to that temperature and pressure is above its critical point (T=
374.15 DEG C, P=22.12MPa) special state water.Supercritical water has liquid and the property of vaporous water concurrently, lower of the state
With the presence of a small amount of hydrogen bond, dielectric constant is similar to polar organic solvent, has high diffusion coefficient and low viscosity.Face super
Under boundary's state, organic matter and oxygen can dissolve each other with supercritical water, so that heterogeneous reaction is changed into homogeneous reaction, substantially reduce
Mass transfer, the resistance of heat transfer.
Based on the unique physicochemical properties of supercritical water, supercritical water gasification technology and supercritical water oxidation skill are developed
Art.Supercritical water gasification technology is using the unique physicochemical properties of supercritical water, in not oxidizer or a small amount of oxygen of addition
On the premise of agent, organic matter occur under the homogeneous phase condition of supercritical water oxidation, hydrolysis, pyrolysis etc. reaction, ultimately generate with
Hydrogen, carbon monoxide, methane, the flammable gaseous product based on carbon dioxide, compared to traditional gasification technology, overcritical aqueous vapor
Change technology has higher gasification efficiency, can reach more than 98%.Supercritical Water Oxidation Technology is only also with supercritical water
Special physicochemical properties, but in the presence of oxygen organic matter must be made to occur, using free radical as leading oxidation reaction, to make waste water
In carbonaceous organic material it is rapid, be thoroughly oxidized to carbon dioxide and water, have and be swift in response, thoroughly and clean environment firendly
Advantage.
But the dielectric constant of supercritical water is relatively low, solubility of the salt in supercritical water is very low, easily separates out and adsorbs
On the inwall of reactor, heat transfer is not only degrading, and easily forms microcirculation in reactor wall, aggravates material corrosion,
Reactor can be blocked when serious, forms potential danger.Therefore, saline deposit causes reactor is blocked to ask in supercritical water technology
One of an important factor for topic is its popularization and application of obstruction.
The content of the invention
It is an object of the invention to provide a kind of supercritical water reaction apparatus with desalination function, solves in supercritical water technology
Salt easily deposition in the reactor, the problem of causing reactor plugs.
The technical solution adopted in the present invention is：A kind of supercritical water reaction apparatus with desalination function, including reactor,
The upper end of the reactor is provided with wastewater inlet and oxygen interface, and pressure tap and electricity are provided with the lateral wall of reactor
Thermocouple interface, is provided with pressure gauge in the pressure tap, and the electroheat pair interface tube is provided with electroheat pair, reactor it is interior
Secondary filter net and multiple dividing plates are disposed between side wall from down to up, the upper surface of each dividing plate is provided with suction
Attached layer, a sewage routeway is respectively formed between the part edge of each dividing plate and the madial wall of reactor, and it is adjacent
Two sewage routeway are interspersed in vertical direction, and the sewage through hole positioned at the top is set away from wastewater inlet, reactor
Lower end is provided with outlet of sewer and salt discharge interface.
The present invention is further characterized in that：
One or more cooling water connectors are provided with the lateral wall of the reactor.
Described cooling water connector is located at the lower section of the dividing plate.
The top and bottom of the reactor are open respectively, and the upper end of reactor is detachably connected with top cover labyrinth, instead
The lower end of device is answered to be detachably connected with lower sealing cover, the wastewater inlet and the oxygen interface are respectively positioned on top cover labyrinth,
The outlet of sewer and the salt discharge interface are located in lower sealing cover.
First annular flange is provided with the outer wall of the reactor upper end, second is provided with the outer wall of reactor lower end
Annular flange, the top cover labyrinth are bolted to connection on first annular flange, and the lower sealing cover is consolidated by bolt
Surely it is connected in the second annular flange.
The promising packing layer of the adsorption layer or adsorbent layer.
Two adjacent sewage routeway are interspersed in vertical direction in 180 °.
The dividing plate is horizontally disposed with.
The filtering accuracy of the secondary filter net is 5um-10um.
The beneficial effects of the invention are as follows：(1) length of reactor can be adjusted according to being actually needed, and be easy to be commercialized
Amplification application；(2) after salt separates out at supercritical conditions, can be adsorbed by the adsorption layer on dividing plate, dividing plate interlaced arrangement, prolongs in addition
The time of sewage outflow has been grown, has promoted the absorption of oxidation reaction and salt grain is more enough more fully to carry out；(3) reactor bottom is set
The secondary filter net put, the salt grain that can prevent from separating out cause valve wear and blocking into subsequent pipeline.
Brief description of the drawings
Fig. 1 is the structural representation of the supercritical water reaction apparatus of the invention with desalination function.
In figure, 1. reactors, 2. pressure gauges, 3. plumbing for waste water, 4. oxygen hoses, 5. top cover labyrinths, 6. first annular flanges, 7.
Dividing plate, 8. electroheat pairs, 9. secondary filter nets, 10. second annular flanges, 11. lower sealing covers；12. blow-off pipe；13. salt discharging pipe；
14. cooling water pipe.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of supercritical water reaction apparatus with desalination function of the present invention, as shown in figure 1, including reactor 1, reactor 1
Interior operating pressure is 25MPa~30MPa, and operating temperature is 400 DEG C~650 DEG C, can be by other auxiliary heaters to reaction
Device heats.The upper end of reactor 1 is provided with wastewater inlet and oxygen interface, and wastewater inlet is connected with plumbing for waste water 3, and sewage is by entering
Dirty pipe 3 is passed through in reactor 1, and oxygen interface is connected with oxygen hose 4, and oxygen conveys oxygen by oxygen hose 4 into reactor 1.
Secondary filter net 9 and multiple dividing plates 7, the filtering of secondary filter net 9 are disposed between the madial wall of reactor 1 from down to up
Precision is 5um-10um, and the upper surface of each dividing plate 7 is provided with adsorption layer, and adsorption layer can be made up of filler or adsorbent and (fill out
Material form for packing layer, adsorbent form for adsorbent layer)；The madial wall at the part edge and reactor 1 of each dividing plate 7
Between be respectively formed with a sewage routeway, and adjacent two sewage routeway are interspersed in vertical direction, turned on indirectly,
Being additionally disposed in the sewage routeway of the top should be set away from wastewater inlet, it can be ensured that and sewage first flows into the surface of dividing plate 7 of the top,
Again the surface of next stage dividing plate 7 is flowed into from the sewage routeway of the top.Pressure tap and more is provided with the lateral wall of reactor 1
Individual electroheat pair interface, pressure gauge 2 is provided with pressure tap, between each two dividing plate 7 electric heating can be set to couple respectively
Mouthful, each electroheat pair interface tube installs an electroheat pair 8 respectively, and pressure gauge 2 and thermocouple 8 are monitored in reactor 1 in real time respectively
The pressure and different parts temperature in portion, when pressure gauge 2 detects that pressure raises rapidly, answer oxygen feeding stop.The lower end of reactor 1
Outlet of sewer and salt discharge interface are provided with, blow-off pipe 12 is provided with outlet of sewer, salt discharging pipe 13 is provided with salt discharge interface, is arranged
Dirty pipe 12 and salt discharging pipe 13 are connected with subordinate blow-off line.
During work, the high temperature sewage after oxygen, preheating is transported to reaction by oxygen hose 4 and plumbing for waste water 3 respectively first
In device 1, under the super critical condition of reactor 1 with oxygen oxidation reaction can occur for the organic matter in one side sewage, most throughout one's life
Discharged into carbon dioxide and water and with sewage from blow-off pipe 12；Dissolubility salt in another aspect sewage is in super critical condition
Under in the form of salt grain separate out, when sewage flows through each dividing plate 7 successively, most salt grains in sewage can be by each dividing plate 7
On adsorption layer absorption, the larger salt grain that will can be also remained before sewage is discharged into blow-off pipe 12 by secondary filter net 9 in sewage
Filtering.Interlaced arrangement between each dividing plate 7, the time of sewage outflow is extended, promotes the absorption of oxidation reaction and salt grain more enough
More fully carry out.Staff should periodically stop heating reactor 1, and open salt discharging pipe 13, inside question response device 1
Temperature is down to after normal temperature accesses plumbing for waste water 3 by cooling water, and reactor 1 is rinsed, the salt grain of now adsorption layer absorption and
The salt grain being deposited on secondary filter net 9 can be dissolved in cooling, finally discharged from salt discharging pipe 13.
As shown in figure 1, being provided with two cooling water connectors on the lateral wall of reactor 1, each cooling water connector is respectively positioned on
The lower section of dividing plate 7, and each dividing plate 7 should be horizontally disposed with.
During work, cooling water can be passed through in reactor 1 by cooling tube 14, now the temperature of sewage can be reduced,
The salt grain of precipitation will be re-dissolved in sewage, finally be discharged, be avoided on secondary filter net 9 from blow-off pipe 12 with sewage
Deposit excessive salt grain, obstruction secondary filter net 9, so as to furthermore achieved that the purpose of desalination.
As shown in figure 1, the top and bottom of reactor 1 are open respectively, the upper end of reactor 1 is detachably connected with close
Capping 5, the lower end of reactor 1 is detachably connected with lower sealing cover 11, and wastewater inlet and oxygen interface are respectively positioned on top cover labyrinth 5
On, outlet of sewer and salt discharge interface are located in lower sealing cover 12.
Specifically, first annular flange 6 is provided with the outer wall of the upper end of reactor 1, is set on the outer wall of the lower end of reactor 1
The second annular flange 10 is equipped with, top cover labyrinth 5 is securely removably connected on first annular flange 6 by bolt, lower sealing
Lid 11 is securely removably connected in the second annular flange 10 by bolt.
Supercritical water reaction apparatus of the invention with desalination function：The length of its reactor 1 can according to be actually needed into
Row adjustment, it is easy to commercialization amplification application；After salt separates out at supercritical conditions, it can be adsorbed by the adsorption layer on dividing plate 7；Dividing plate
7 interlaced arrangements, the time of sewage outflow is extended, promotes the absorption of oxidation reaction and salt grain is more enough more fully to carry out；Instead
The secondary filter net 9 for answering the bottom of device 1 to set, can further filter larger salt grain, and the larger salt particle for preventing from separating out enters follow-up
Pipeline causes valve wear and blocking.
Claims (9)
- A kind of 1. supercritical water reaction apparatus with desalination function, it is characterised in that including reactor (1), the reactor (1) Upper end be provided with wastewater inlet and oxygen interface, be provided with pressure tap on the lateral wall of reactor (1) and electric heating couple Mouthful, pressure gauge (2) is provided with the pressure tap, the electroheat pair interface tube is provided with electroheat pair (8), reactor (1) Madial wall between be disposed with secondary filter net (9) and multiple dividing plates (7) from down to up, each dividing plate (7) it is upper Surface is provided with adsorption layer, and one is respectively formed between the part edge of each dividing plate (7) and the madial wall of reactor (1) Sewage routeway, and adjacent two sewage routeway are interspersed in vertical direction, and the sewage routeway positioned at the top is away from dirty Water inlet is set, and the lower end of reactor (1) is provided with outlet of sewer and salt discharge interface.
- 2. the supercritical water reaction apparatus according to claim 1 with desalination function, it is characterised in that the reactor (1) one or more cooling water connectors are provided with lateral wall.
- 3. the supercritical water reaction apparatus according to claim 2 with desalination function, it is characterised in that described cooling water Interface is located at the lower section of the dividing plate (7).
- 4. the supercritical water reaction apparatus according to claim 1 with desalination function, it is characterised in that the reactor (1) top and bottom are open respectively, and the upper end of reactor (1) is detachably connected with top cover labyrinth (5), reactor (1) Lower end is detachably connected with lower sealing cover (11), and the wastewater inlet and the oxygen interface are respectively positioned on top cover labyrinth (5), The outlet of sewer and the salt discharge interface are located in lower sealing cover (12).
- 5. the supercritical water reaction apparatus according to claim 4 with desalination function, it is characterised in that the reactor (1) first annular flange (6) is provided with the outer wall of upper end, the second annular flange is provided with the outer wall of reactor (1) lower end (10), the top cover labyrinth (5) is bolted to connection on first annular flange (6), and the lower sealing cover (11) passes through Bolt is fixedly connected in the second annular flange (10).
- 6. the supercritical water reaction apparatus according to claim 1 with desalination function, it is characterised in that the adsorption layer has For packing layer or adsorbent layer.
- 7. the supercritical water reaction apparatus according to claim 1 with desalination function, it is characterised in that two adjacent institutes Sewage routeway is stated to be interspersed in 180 ° in vertical direction.
- 8. the supercritical water reaction apparatus according to claim 7 with desalination function, it is characterised in that each dividing plate (7) it is horizontally disposed.
- 9. the supercritical water reaction apparatus according to claim 1 with desalination function, it is characterised in that the secondary filter The filtering accuracy of net (9) is 5um-10um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056748.3A CN107879529B (en) | 2017-10-27 | 2017-10-27 | Supercritical water reaction device with desalting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056748.3A CN107879529B (en) | 2017-10-27 | 2017-10-27 | Supercritical water reaction device with desalting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107879529A true CN107879529A (en) | 2018-04-06 |
| CN107879529B CN107879529B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711056748.3A Active CN107879529B (en) | 2017-10-27 | 2017-10-27 | Supercritical water reaction device with desalting function |
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Cited By (3)
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| CN109574194A (en) * | 2019-01-23 | 2019-04-05 | 南京新奥环保技术有限公司 | Supercritical water oxidation treatment system |
| CN112844346A (en) * | 2020-12-31 | 2021-05-28 | 成都九翼环保科技有限公司 | Supercritical hydrothermal powdered activated carbon regeneration device and method |
| CN114275872A (en) * | 2022-01-14 | 2022-04-05 | 杭州深瑞水务有限公司 | Oxidation tower for subcritical water oxidation process |
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| CN114275872A (en) * | 2022-01-14 | 2022-04-05 | 杭州深瑞水务有限公司 | Oxidation tower for subcritical water oxidation process |
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| CN107879529B (en) | 2020-08-18 |
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