CN115636542A - Novel boats and ships wet process integration washing wastewater treatment device - Google Patents
Novel boats and ships wet process integration washing wastewater treatment device Download PDFInfo
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- CN115636542A CN115636542A CN202211362539.2A CN202211362539A CN115636542A CN 115636542 A CN115636542 A CN 115636542A CN 202211362539 A CN202211362539 A CN 202211362539A CN 115636542 A CN115636542 A CN 115636542A
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- 238000005406 washing Methods 0.000 title claims abstract description 37
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims description 15
- 230000010354 integration Effects 0.000 title claims description 4
- 239000002351 wastewater Substances 0.000 claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 230000003647 oxidation Effects 0.000 claims abstract description 41
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 41
- 238000010612 desalination reaction Methods 0.000 claims abstract description 27
- 238000011033 desalting Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 43
- 238000007789 sealing Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 13
- 238000001704 evaporation Methods 0.000 claims description 12
- 230000008020 evaporation Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 11
- 239000002912 waste gas Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 239000013535 sea water Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000008358 core component Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 238000005188 flotation Methods 0.000 abstract description 37
- 238000000746 purification Methods 0.000 abstract description 13
- 229910002651 NO3 Inorganic materials 0.000 abstract description 12
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 12
- 150000002823 nitrates Chemical class 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract description 4
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 18
- 235000019198 oils Nutrition 0.000 description 14
- 238000001914 filtration Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000012528 membrane Substances 0.000 description 9
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 7
- 238000006477 desulfuration reaction Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 6
- 238000000889 atomisation Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 239000011550 stock solution Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a novel ship wet-process integrated washing wastewater treatment device which mainly comprises an oxidation flotation device and a desalination purification device, wherein ship washing wastewater enters the oxidation flotation device from the middle part of the oxidation flotation device, polycyclic aromatic hydrocarbons are efficiently removed in the oxidation flotation device, then the washing wastewater is discharged from the bottom of the oxidation flotation device and enters the desalination purification device from the bottom, nitrates in the washing wastewater are removed in the desalination purification device, and in addition, sulfates and suspended particles in the washing wastewater are removed together in the desalination purification device. The condensed water discharged from the desalting purifier enters a wastewater online monitoring and regulating device, if the water quality is qualified, the condensed water is discharged to the outboard, and if the water quality is unqualified, the condensed water is refuted to an oxidation floater for secondary treatment. The washing wastewater treatment technology provided by the patent has the greatest characteristic of realizing high-efficiency removal of washing wastewater with low energy consumption, and simultaneously can remove nitrate in the washing wastewater, which is very important for the application of a wet-process integrated technology in ships.
Description
Technical Field
The invention relates to the technical field of tail gas purification of marine diesel engines, in particular to a novel marine wet-process integrated washing wastewater treatment device.
Background
Rapid development of world trade has facilitated the transportation of goods between countries, whereas shipping entails more than 90% of the world's transportation of goods. Because of the good economical efficiency of diesel engines, commercial ships in all countries around the world mainly use diesel engines as power sources. In order to reduce the operation cost, the ship engine mainly takes inferior fuel oil as fuel. Therefore, the exhaust gas from ships contains a high concentration of NO x 、SO 2 And PM, which brings great threat to the natural environment and human health. Ship-discharged NO by International Maritime Organization (IMO) and environmental protection department of China x And SO 2 There are strict regulations. A great deal of research shows that the wet washing technology can realize NO at the same time x 、SO 2 And efficient removal of PM, SO 2 Is converted into sulfite, NO x The converted nitrates, PM, combine with the spray droplets to form an oil-water mixture and impurities suspended in the wash effluent. The environmental protection department has stricter limiting standards on the nitrate concentration, PAHs and turbidity of the washing wastewater discharged into the sea, and the high-efficiency, convenient and energy-saving wastewater treatment device is an important guarantee for legally and smoothly navigating ships around the world and is wet NO x 、 SO 2 And the important point of wide application of the PM integrated removal technology in the ship industryAnd (4) extracting.
At present, the ship wastewater treatment device is designed mainly based on the technical processes of aeration, flocculation flotation and filtration adsorption, or is designed by improving part of the technical process, the wastewater treatment device adopting the technical process has large volume and low treatment efficiency, a flocculating agent needs to be added in the wastewater treatment process, more importantly, the wastewater treatment device adopting the technical process cannot treat nitrate in wastewater, and the application of the wastewater treatment device adopting the technical process in the field of ships is directly limited. In addition, the membrane type filtering technical path is applied to the technical field of ship wastewater treatment at present, and due to the fact that the water quality of ship washing wastewater is poor, the filtering membrane is easy to block, the efficiency of wastewater treatment and the service life of the filtering membrane are obviously affected, and the use cost of the wastewater treatment device is greatly increased. A large number of researchers have carried out relevant research and improvement on ship wet-process washing wastewater treatment devices, but problems still exist in application.
In the patent "ship wastewater treatment device" with application number 202122577477.4, wastewater of a desulfurization system is treated by a self-cleaning filter and a ceramic membrane filter, a filtering unit comprises the self-cleaning filter and the ceramic membrane filter and can perform automatic back washing, and a separating unit comprises a heating device and a separating device and can concentrate the filtered wastewater of the filtering unit into sludge and a separating liquid. The patent can only treat the desulfurization wastewater, and can not effectively treat nitrate in the wastewater. In addition, the patent utilizes membrane technology for separation, and although the membrane is backwashed, the life of the membrane is easily affected due to the fact that the desulfurization waste water contains a great amount of impurities.
In a marine wastewater treatment device, patent application No. 202110990300.9, a preheating recovery mechanism and a filtering mechanism are arranged in the marine wastewater treatment device to purify marine washing wastewater and recycle the wastewater preheating. The design of this patent can only carry out effective filtration to substances such as suspended particles in the waste water, can't carry out effective processing to sulfite, nitrate and polycyclic aromatic hydrocarbon in the washing waste water, has obvious technical defect.
In a ship flue gas desulfurization wastewater treatment device in patent application No. 202210714326.5, a ship flue gas desulfurization wastewater treatment device is disclosed, wherein a filtering device is arranged in the device, and a scraping plate is arranged at the top of the filtering device. This patent is at first through carrying out preliminary treatment to waste water and filtering the solid waste in with waste water, and the solid matter that cooperates the scraping plate in with waste water filters. The design of this patent only can filter the particulate matter in the waste water, can't carry out effective oxidation to the sulfite in the waste water, and polycyclic aromatic hydrocarbon and nitrate in the waste water can't effectively get rid of moreover, and the device can't satisfy at all and discharge the regulation of regulation to the waste water quality of water of ship desulfurization system.
In conclusion, the existing ship wet washing wastewater treatment device has many problems in practical application, and it is necessary to develop a set of efficient, convenient, complete-function and energy-saving washing wastewater treatment device.
Disclosure of Invention
The invention provides a novel ship wet-process integrated washing wastewater treatment device, and provides the structural composition and the working principle of the wastewater treatment device.
The waste water discharged from a washing tower of a ship contains main pollutants such as sulfite, nitrate, oil stain, suspended particulate matters and the like, firstly, the washing waste water discharged from the washing tower enters an oxidation flotation device from the middle part of the oxidation flotation device, sulfite in the waste water in the oxidation flotation device is oxidized into sulfate, oil-containing substances are discharged from the upper part of the oxidation flotation device, the washing waste water containing the sulfate, the nitrate and the suspended particulate matters enters a desalination purification device from the bottom of the desalination purification device through an atomization injection device, the removal of the nitrate and the suspended particulate matters is completed in the desalination purification device, the treated waste water is discharged from the middle part of the desalination purification device, the waste water flowing out of the desalination purification device enters a monitoring and regulating device, if the water quality meets the discharge standard, the washing waste water is discharged outboard, and if the water quality does not meet the discharge standard, the treated waste water enters the oxidation flotation device again for treatment.
The novel ship wet-process integrated washing wastewater treatment device provided by the invention has the following specific working process:
(1) Get into the oxidation flotation device from the middle part of oxidation flotation device from boats and ships scrubbing tower exhaust waste water, super microbubble generating device is installed to the bottom of oxidation flotation device, under super microbubble's effect, the bubble that contains oil can come up fast in the washing waste water, sulfite in the waste water is oxidized to the sulfate simultaneously, demonstrate the three-layer from last to down in the oxidation flotation device, the first layer is the oil reservoir, the second floor is the oil water mixing layer, the third layer is the water layer, the waste water that the scrubbing tower was discharged carries out the oxidation flotation device from the oil water mixing layer in oxidation flotation device middle part, the oil reservoir that is located the oxidation flotation device upper strata is through the clearance discharge oxidation flotation device of oil reservoir scraper blade, and the water layer is from the bottom discharge oxidation flotation device.
(2) The wastewater discharged from the oxidation flotator contains contaminants primarily including nitrates and suspended particulates. The waste water treated by the oxidation and flotation device enters the desalination and purification device through the atomization injection device arranged at the bottom of the desalination and purification device, the atomization injection device atomizes the waste water into small liquid drops which are injected on the surface of the high-temperature evaporator, and the heat source of the high-temperature evaporator is from high-temperature waste gas before entering the washing tower. The liquid drops are evaporated to form residues of nitrates and suspended particles on the surface of the high-temperature evaporator, and the nitrates and the suspended particles are collected at the bottom of the desalting purifier by scraping of a residue scraper. Steam that forms after the liquid drop evaporation passes through in steam inlet gets into condensing system's the circulative cooling ware, the terminal installation suction pump of spiral cooling pipe in the circulative cooling ware, install the resistance stopper in the through-flow straight tube among the circulative cooling ware, thereby guarantee the suction pump during operation, can fully with the steam suction of high temperature evaporator evaporation in the spiral cooling pipe of circulative cooling system, the overwhelming majority of spiral cooling pipe is arranged in cooling system, the few of spiral cooling pipe lower part is arranged in the condensate stock solution cabinet, the spiral cooling pipe bottom that exposes in the condensate stock solution cabinet is equipped with the condensate drainage hole, the condensate drainage hole is opened and close through the atmoseal stopper control. The air-lock stopper can ensure that the water leakage fluid dram closes when the suction pump is worked, and the water leakage fluid dram opens when the suction pump stops working. When the suction pump during operation, under the effect of suction pump, air velocity increases, the gas shutoff that has special construction shifts up, thereby will congeal the water outage and block up, this steam that both can guarantee not the condensation is at the recirculated cooling ware intercooling, can guarantee again to continue the steam of suction high temperature evaporator evaporation, when suction pump stop work, the gas shutoff moves down under the effect of gravity, it opens to congeal the water outage, the comdenstion water flows into through congealing the water outage under the effect of gravity and congeals in the water stock solution cabinet, expose the high temperature evaporator surface installation insulating layer in congealing the water stock solution cabinet, can effectively avoid congealing the water evaporation, the heat load of evaporation has been increaseed simultaneously.
(3) And (4) enabling waste water discharged by the condensate water storage tank to enter a monitoring regulator, directly discharging the waste water out of the ship board if the water quality meets the discharge standard, and refluxing the waste water to the oxidation floater for secondary treatment if the water quality is unqualified.
Compared with the prior art, the invention has the following advantages:
(1) The invention can treat oil stain and suspended particles, has certain treatment effect on nitrate in wastewater, and can be better suitable for NO x 、SO 2 And the washing wastewater treatment of PM wet method integrated removal.
(2) The invention only comprises two treatment modules, compared with the traditional water treatment device, the system complexity is obviously reduced, and a flocculating agent is not needed.
(3) The invention has the advantages of simpler principle, lower use cost and operation cost, and more stable and durable system compared with a membrane type treatment system.
(4) The heat source of the high-temperature evaporator is the heat of the waste gas, so that the dual energy-saving effect of the wet-process integrated removal system is realized.
Drawings
The novel ship wet integrated washing wastewater treatment device of the invention is explained in detail with reference to the following drawings.
FIG. 1 is novel boats and ships wet process integration washing wastewater treatment device's work flow, the waste water of discharging from the scrubbing tower gets into the oxidation flotation device from the middle part of oxidation flotation device, the desorption of greasy dirt is accomplished to waste water in the oxidation flotation device, later waste water gets into the desalination clarifier from the atomizing sprayer of desalination clarifier, accomplish the desorption of nitrate and suspended particles thing in the desalination clarifier, the waste water of discharging from the desalination clarifier gets into the control modulator, if quality of water is qualified, then waste water discharge is outboard, if quality of water is unqualified, then waste water circulation carries out secondary treatment to the oxidation flotation device.
FIG. 2 shows an oxidation-flotation device, in FIG. 2, 1-oil layer scraper guide rail, 2-oil layer scraper, 3-oil outlet, 4-oil layer, 5-washing wastewater inlet, 6-oil-water mixing layer, 7-oxidation-flotation device wastewater outlet, 8-water layer, and 9-ultramicro bubble generation device.
FIG. 3 is a desalination purifier, in FIG. 3, 1-cooling seawater inlet, 2-high temperature exhaust gas inlet, 3-straight through-flow pipe, 4-resistance plug, 5-cooling system, 6-circulating cooler, 7-suction pump, 8-spiral cooling pipe, 9-air sealing plug, 10-condensate liquid storage tank, 11-cooling seawater outlet, 12-steam inlet, 13-wastewater outlet, 14-high-temperature waste gas outlet, 15-atomization injection device, 16-high-temperature evaporator, 17-residue scraper and 18-residue outlet.
Fig. 4 is a specific structure and arrangement of the high-temperature evaporator in an interface view of the desalination purifier along an exhaust gas pipe, and in fig. 4, 1 is a steam outlet, 2 is a heat insulation layer, 3 is a condensate storage tank partition baffle, and 4 is a high-temperature evaporation fin.
Fig. 5 is a structural illustration of the condensate discharging from the bottom of the spiral cooling pipe, and in fig. 5, 1-spiral cooling pipe, 2-air sealing plug valve rod, 3-air sealing plug floater, 4-condensate discharging hole, and 5-air sealing plug sealing pad.
Detailed Description
In the present invention, as shown in fig. 1, the wastewater after the integrated washing of the ship is intermittently discharged into the oxidation flotation device, and the process of treating the wastewater in the oxidation flotation device is described with reference to fig. 2, firstly, the washing wastewater enters the oxidation flotation device from the washing wastewater inlet 5, the ultra-micro bubble generating device 9 generates ultra-micro bubbles, sulfite in the wastewater can be oxidized into sulfate, the oil-stain bubbles float up in the oxidation flotation device due to the small mass of the oil-stain bubbles, so the wastewater in the oxidation flotation device is layered, the uppermost layer is an oil layer 4, the middle layer is an oil-water mixing layer 6, the lowermost layer is a water layer 8, the oil layer scraper 2 discharges the oil layer out of the oxidation flotation device through the oil outlet 3 under the traction of the oil layer scraper guide rail 1, and the lower water layer after the treatment discharges the oxidation flotation device through the oxidation flotation device wastewater outlet 7.
The wastewater exiting the oxidation-flotation device is introduced into a desalination purifier, where the nitrate and suspended particulate matter in the wastewater are treated, and the purification process of the wastewater in the desalination purifier is described with reference to fig. 3 and 4. In fig. 3, the waste water enters from below through the spray atomization device 15, 16 in fig. 3 is a high-temperature evaporator, the gas flowing in the high-temperature evaporator is engine high-temperature waste gas, as can be seen from fig. 4, the high-temperature evaporation fins 4 are installed on the lower surface of the high-temperature evaporator to enlarge the heat dissipation surface area, because the temperature of the engine waste gas is high, the atomized waste water drops on the surfaces of the high-temperature evaporation fins to evaporate rapidly, the nitrates, the sulfates and the suspended matters in the waste water remain on the surfaces of the high-temperature evaporation fins, the nitrates, the sulfates and the suspended matters are scraped off under the scraping and brushing action of the residue scraper 17 in fig. 3, the scraped-off residues are discharged from the residue discharge port 18 in fig. 3, at this time, the washing waste water is divided into waste water vapor and residues, the removal of the nitrates, the sulfates and the suspended matters in the waste water is also completed, and the condensation process of the waste water vapor is described below. Taking the horizontal plane of the high temperature evaporator 16 in fig. 3 as a partition, the lower part is a hot chamber with higher temperature, in order to realize the technical requirement of this patent, the upper surface of the high temperature evaporator needs to be provided with a heat insulation layer 2 shown in fig. 4, so the upper part of the high temperature generator has lower temperature and is a cold chamber. The waste water vapor after the evaporation of the hot chamber enters the cold chamber through the vapor outlet shown in fig. 4 as 1, enters the circulating cooler 6 in the cooling system 5 through the vapor inlet 12 in fig. 3, the coolant in the cooling system 5 enters the cooling system through the cooling seawater inlet 1 in fig. 3, and exits the cooling system through the cooling seawater outlet 11 in fig. 3, and the coolant assists the condensation of the vapor. Waste water steam entering the circulating cooler is rapidly circulated in the circulating condenser under the action of a suction pump 7 in fig. 3, in order to ensure that the suction pump sucks more waste gas evaporated from a heat chamber into a cooling system, a resistance plug 4 is ingeniously arranged in a through-flow straight pipe 3 of the circulating cooler in fig. 3, the lower part of the circulating condenser in fig. 3 is a spiral cooling pipe, the spiral cooling pipe is transversely arranged, a part of the lower part of the spiral cooling pipe is arranged outside the cooling system, in order to prevent a coolant from leaking, the interface between the spiral cooling pipe and the cooling system is forcibly sealed, and the specific structure of discharging condensed water below the spiral cooling pipe is shown in fig. 5. In fig. 5, a set of structure with skillful design is adopted for the air sealing float 3, the air sealing valve rod 2 and the air sealing gasket 5, the upper surface of the air sealing float is protruded, the surface area is large, the lower surface is normal, and the surface area is small, when a suction pump works, the condensation process of waste water vapor is carried out at the moment, high-speed airflow flows through, the air sealing float generates a lifting force effect to drive the air sealing valve rod and the air sealing float to move upwards, the condensate water discharge hole 4 in fig. 5 is sealed, high-speed circulating cooling of the waste gas vapor is ensured at the moment, other air is effectively prevented from entering a circulating condenser through the condensate water discharge hole, the waste water vapor is rapidly condensed through the centrifugal effect generated by high-speed rotation in a spiral cooling pipe through the cooling effect, after the condensation process is finished, the air sealing gasket moves downwards under the action of gravity, the condensate water discharge hole is opened, the condensate water is discharged into the condensate water tank in fig. 3 through the condensate water discharge hole, the condensate water discharge hole 13 in fig. 3 is discharged out of the desalination purifier, and the desalination purifier can be detected on line through the monitoring and can reach the standard if the water quality of the liquid storage tank, and the desalination purifier can reach the standard through the outboard; if the water quality does not reach the standard, the wastewater is circulated to the oxidation and flotation device for secondary treatment.
Claims (7)
1. The utility model provides a novel boats and ships wet process integration washing wastewater treatment device which characterized in that: the apparatus includes an oxidation flotator and a desalination purifier.
2. An oxidation flotator according to claim 1 wherein: the wastewater inlet is arranged in the middle of the oxidation float-bloom device, and the wastewater outlet is arranged at the bottom of the oxidation float-bloom device.
3. The desalination purifier of claim 1, wherein: the desalting purifier comprises a cooling seawater inlet, a high-temperature waste gas inlet, a through-flow straight pipe, a resistance plug, a suction pump, a spiral cooling pipe, an air seal plug, a condensate liquid storage cabinet, a cooling seawater outlet, a steam inlet, a waste water outlet, a high-temperature waste gas outlet, an atomizing and spraying device, a high-temperature evaporator, a residue scraper and a residue outlet.
4. The desalination purifier of claim 1, wherein: the desalination purifier is divided into three layers, wherein the lowest layer is a wastewater evaporation layer, the middle layer is a condensate storage layer, the uppermost layer is a wastewater steam condensation layer, the three separation layers are all sealed except for a special channel, the separation positions of the lowest layer and the middle layer are the middle positions of the high-temperature evaporator, and the uppermost layer and the middle layer are separated through a lower partition plate of a cooling system.
5. A high temperature evaporator according to claim 4, wherein: the surface of the high-temperature evaporator positioned at the lowest layer is provided with a high-temperature evaporation fin, and the surface of the high-temperature evaporator positioned at the middle layer is provided with a heat insulation device.
6. The cooling system according to claim 4, wherein: the core component of the cooling system is a circulating cooler which consists of a spiral cooling pipe, a suction pump, a through-flow straight pipe and a resistance plug, wherein the resistance plug is arranged in the through-flow straight pipe. The lower part of the spiral cooling pipe is positioned in the middle layer of the desalination purifier, and the bottom of the spiral cooling pipe is provided with a special structure for discharging condensed water.
7. The special condensate draining arrangement of claim 6, wherein: the condensed water discharging structure comprises a gas seal plug floater, a gas seal plug valve rod, a condensed water discharging hole and a gas seal plug sealing gasket, wherein the upper part of the seal plug floater is a protruded surface, the lower part of the seal plug floater is a normal surface, the surface area of the upper part of the seal plug floater is larger than the surface area of the lower part of the seal plug floater, when waste water steam flows at a high speed, the gas seal plug floater drives the gas seal plug valve rod to ascend, so that the condensed water discharging hole is blocked by the gas seal plug sealing gasket, when no waste water steam flows, the condensed water discharging hole is opened under the action of gravity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211362539.2A CN115636542B (en) | 2022-11-02 | 2022-11-02 | Ship wet integrated washing wastewater treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211362539.2A CN115636542B (en) | 2022-11-02 | 2022-11-02 | Ship wet integrated washing wastewater treatment device |
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| CN115636542B CN115636542B (en) | 2024-07-19 |
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