CN116986768A - iCER water treatment system - Google Patents
iCER water treatment system Download PDFInfo
- Publication number
- CN116986768A CN116986768A CN202311102952.XA CN202311102952A CN116986768A CN 116986768 A CN116986768 A CN 116986768A CN 202311102952 A CN202311102952 A CN 202311102952A CN 116986768 A CN116986768 A CN 116986768A
- Authority
- CN
- China
- Prior art keywords
- water
- icer
- treatment system
- water treatment
- cabinet
- 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.)
- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 238000001914 filtration Methods 0.000 claims abstract description 35
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 26
- 239000003513 alkali Substances 0.000 claims abstract description 15
- 238000011049 filling Methods 0.000 claims abstract description 15
- 239000002351 wastewater Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000737 periodic effect Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 25
- 239000008394 flocculating agent Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000003657 drainage water Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses an iCER water treatment system, which comprises: an iCER circulation cabinet; the neutralization module is used for adjusting the pH value of the wastewater and comprises a neutralization cabinet and a discharge cabin, wherein the neutralization cabinet is provided with an air cooler condensate water input port; the alkali liquor filling unit is used for adding alkali liquor and is communicated with the neutralization cabinet and the discharge cabin; the drainage cabin is communicated with an inlet of the filtration module through a water supply pump, and a liquid outlet of the filtration module is communicated with the drainage pump; PAC filling unit for feeding flocculant to the filtration module. The water treatment system is simple to operate and maintain, is in modularized design, has small volume, and is convenient for flexible arrangement in a narrow space of a cabin. Basically, the operation is controlled automatically, and the crewman only needs to simply start and stop operation and periodic maintenance. The water treatment system has the advantages of good treatment effect, low operation energy consumption and low periodic maintenance cost, and the treated water can reach the discharge standard and be directly discharged.
Description
Technical Field
The invention relates to an iCER water treatment system, in particular to a water treatment system containing oil and soot particles (condensed water of a flue gas washing water mixing air cooler), and belongs to the technical field of wastewater treatment.
Background
With the development of energy conservation and emission reduction technologies, high-power dual-fuel engines are gradually applied to the ship market. Most dual-fuel engines are designed by introducing iCER (intelligent control exhaust gas recirculation system), washing and cooling part of exhaust gas discharged by the engine through analysis and calculation, introducing the exhaust gas into a compressor of an engine supercharger, and mixing the exhaust gas with fresh air to realize oxygen concentration content control of scavenging gas. The oxygen concentration in the scavenging gas is controlled, the combustion stability is improved, and the pre-combustion and deflagration of fuel gas can be avoided, so that the compression ratio is further improved, the performance is improved, and the energy consumption is reduced. However, untreated iCER system flue gas wash water and engine air cooler condensate cannot meet IMO emission standards and cannot be directly discharged. Moreover, these waters containing emulsified oil cannot be treated by conventional oil-water separators on board ships, so that with the use of the iCER system of the dual-fuel machine, the associated water treatment system also needs to be used in synchronization.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the iCER water treatment system can further treat the flue gas washing water and the condensed water of the engine air cooler, and enables the treated product to meet the emission standard.
In order to solve the above technical problems, the present invention provides an iCER water treatment system, which includes:
an iCER circulation cabinet;
the neutralization module is used for adjusting the pH value of the wastewater and comprises a neutralization cabinet and a discharge cabin, wherein the neutralization cabinet is provided with an air cooler condensate water input port, and the iCER circulation cabinet, the neutralization cabinet and the discharge cabin are sequentially communicated;
the alkali liquor filling unit is used for adding alkali liquor and is communicated with the neutralization cabinet and the discharge cabin;
the drainage cabin is communicated with an inlet of the filtration module through a water supply pump, and a liquid outlet of the filtration module is communicated with the drainage pump;
PAC filling unit for feeding flocculant to the filtration module.
Preferably, the filtration module comprises two filtration units connected in parallel.
More preferably, a slag discharging port is arranged at the top of each filtering unit, and the slag discharging port is communicated with the oil slag cabinet.
Preferably, a back flushing device is arranged in each filtering unit.
More preferably, each of said filter units is provided with a compressed air input for communicating with a compressed air assisted backwash.
More preferably, when one of the filter units in the filter module is in the filter mode, the other filter unit is standby, and each filter module automatically executes back flushing and cleaning procedures when being switched to the standby state and then enters the standby mode.
Preferably, the outlet of the drain pump is used for draining the treated water, and after passing through the oil content detection module, the outlet of the drain pump is switched to be communicated with at least one of the iCER discharge cabin, the outboard port, the wearing System water storage tank of the host air cooler and the iCER circulation cabinet through a three-way valve.
Preferably, the device further comprises an oil content detection unit for detecting whether the drainage of the drainage pump outlet is qualified or not, the oil content detection unit comprises an oil content detector, the outlet of the drainage pump is communicated with the inlet of the oil content detector, the outlet of the oil content detector is communicated with a three-way valve, one outlet of the three-way valve is used for discharging qualified water after treatment, the other outlet of the three-way valve is communicated with a discharge cabin, and unqualified water after treatment is communicated with the discharge cabin.
More preferably, an outlet for discharging the treated qualified water in the three-way valve is communicated with at least one of an outboard port, a mounting System water storage tank of a host air cooler and an iCER circulation tank.
Further, in a normal state, the treated qualified water is communicated with an outboard port; when water is needed to be replenished, the treated qualified water is communicated with a water storage tank of a welding System of the host air cooler; when the host operates the iCER system in the fuel mode, part of the treated qualified water is returned to the iCER circulation cabinet.
Along with the operation of the iCER System, the water level of the circulating cabinet rises, water exceeding the overflow port overflows out to enter the neutralization module, and meanwhile, the host air cooler can also always generate condensed water to mix with the drainage water of the welding System, and the drainage water enters the neutralization module together. And in the neutralization module, according to the detected water flow and the pH value, the alkali liquor filling unit automatically adds a certain amount of NaOH solution, so that the water discharged by the neutralization module reaches the set pH value. The water neutralized by the neutralization module is injected into a discharge cabin, and the water in the discharge cabin is hereinafter referred to as raw water.
When raw water needs to be treated, the raw water enters a filtering module through a water supply pump, meanwhile, a certain amount of flocculating agent is added into a water supply pipeline through a PAC filling unit, so that the raw water and the flocculating agent are fully mixed in the pipeline, the flocculating agent forms floccules and adsorbs emulsified oil and carbon smoke particles in water, in the filtering module, the floccules and a small amount of water (the total amount is about 0.5 percent) which adsorb the emulsified oil and the carbon smoke particles in water are filtered out and discharged into an oil residue cabin, about 99.5 percent of clear water is discharged, the discharged clear water is subjected to oil content detection (15 ppm), the detection is unqualified, the water is switched to return to a discharge cabin through a linkage three-way valve for reprocessing, and clear water is discharged after the oil content detection is qualified.
Compared with the prior art, the invention has the beneficial effects that:
the water treatment system is simple to operate and maintain, is in modularized design, has small volume, and is convenient for flexible arrangement in a narrow space of a cabin. Basically, the operation is controlled automatically, and the crewman only needs to simply start and stop operation and periodic maintenance. The water treatment system has the advantages of good treatment effect, low operation energy consumption and low periodic maintenance cost, and the treated water can reach the discharge standard and be directly discharged. The water treatment system can be applied to the fuel gas type iCER and can also be applied to the fuel oil type iCER.
Drawings
FIG. 1 is a block diagram of an iCER water treatment system according to the present invention.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Examples
As shown in fig. 1, an iCER water treatment system provided by the present invention includes:
an iCER circulation cabinet 1;
the neutralization module is used for adjusting the pH value of the wastewater and comprises a neutralization cabinet 2 and a discharge cabin 3, wherein the neutralization cabinet 2 is provided with an air cooler condensate water input port A, and an iCER circulating cabinet 1, the neutralization cabinet 2 and the discharge cabin 3 are sequentially communicated;
the alkali liquor filling unit 4 is used for adding alkali liquor, and the alkali liquor filling unit 4 is communicated with the neutralization cabinet 2 and the discharge cabin 3;
the filtering module 6 is used for filtering the wastewater, the discharge cabin 3 is communicated with an inlet of the filtering module 6 through the water supply pump P1, and a liquid outlet of the filtering module 6 is communicated with the drainage pump P2;
PAC filling unit 5 for feeding flocculant to filtration module 6;
the oil content detection unit is used for detecting whether the drainage of the outlet of the drainage pump P2 is qualified or not, and comprises an oil content detection meter 8, wherein the outlet of the drainage pump P2 is communicated with the inlet of the oil content detection meter 8, the outlet of the oil content detection meter 8 is communicated with a three-way valve, one outlet of the three-way valve is used for discharging qualified water after treatment, the other outlet of the three-way valve is communicated with a discharge cabin 3, and unqualified water after treatment is communicated with the discharge cabin 3. The outlet for discharging the treated qualified water in the three-way valve is divided into three paths, wherein one path is connected with an outboard port C, the other path is communicated with a wiring System water storage tank 9 of the host air cooler through an outlet D, the third path is communicated with the iCER circulating cabinet 1 through an outlet E, and the treated qualified water is controlled to be led to a designated path through a control valve. In a normal state, the treated qualified water is communicated with an outboard port C; when water is needed to be replenished, the treated qualified water is communicated with a water storage tank 9 of a welding System of the host air cooler; when the host operates the iCER system in the fuel mode, part of the treated qualified water is returned to the iCER circulation cabinet.
The filter module 6 comprises two identical filter units connected in parallel. The top of each filtering unit is provided with a slag discharging port which is communicated with the oil slag cabinet 7. And a back flushing device is arranged in each filtering unit. Each filter unit is provided with a compressed air input port B for communicating with a compressed air auxiliary backwash. When one of the filter units in the filter module 6 is in the filter mode, the other filter unit is standby, and each filter module automatically executes back flushing and cleaning procedures when being switched to the standby state and then enters the standby mode.
The components are controlled by a control system, and the control system can adopt the prior conventional technical means.
Along with the operation of the iCER System, the water level of the circulation cabinet can rise to a certain extent and overflow out, and meanwhile, the air cooler of the host machine can always generate condensed water (the water quantity of different working conditions of the host machine and different climatic conditions, and meanwhile, the washing water of the air cooler with some machine types is mixed in the condensed water). When the water flows into the neutralization cabinet 2 after being injected into the air cooler condensate water input port A through the overflow pipe of the circulation cabinet 1 and the main machine air cooler condensate water, the system can detect the pH value of the water and detect the flow rate of the water at the outlet of the neutralization cabinet, and a certain alkali liquor is added into the alkali liquor filling unit 4 through calculation and dynamic control, so that the pH value of the water flowing into the discharge cabin 3 is controlled to be about a set value. The discharge cabin 3 is internally provided with secondary pH detection, and when the pH of raw water in the discharge cabin 3 is lower than a set value, the alkali liquor filling unit 4 can fill a certain amount of alkali liquor again to adjust the pH of the raw water in the discharge cabin 3 to be not lower than the set value.
The above-described ice water treatment system has a number of automatic modes of operation, typically using a low-level maintenance delay automatic start and a low-level automatic stop mode. When the water treatment system is operated, raw water in the discharge cabin 3 is input into the filtering module 6 through the water supply pump P1, and meanwhile, a certain amount of flocculating agent is added into the water supply pipeline through the PAC filling unit 5, so that the raw water and the flocculating agent are fully mixed in the pipeline, and the flocculating agent forms floccules and adsorbs emulsified oil and soot particles in water. In the filter module, the flocs having adsorbed emulsified oil and soot particles in the water and a small amount of water (total amount of about 0.5%) are filtered out and discharged into the oil residue tank 7, and about 99.5% of the clean water is discharged. The discharged clean water is detected by the oil content detector 8, if the detection is failed, the discharged clean water returns to the discharge cabin 3 for reprocessing through the three-way valve controlled by the oil content detector 8, and if the oil content detection is passed, the clean water is discharged.
The qualified clean water is discharged in three possible flow directions, and the first, the outboard discharge port C directly discharges the outboard. And secondly, the outlet D is connected to a water storage tank of a mounting System of the host air cooler (when water is needed to be replenished, water flow is automatically switched to a water tank from the outboard side). Third, the E outlet, when the host operates the iCER system in fuel mode, a certain amount of water is returned to the iCER circulation tank (the circulation dialysis does not deteriorate the water quality in the circulation tank 1).
Meanwhile, the filtering module consists of two identical a filtering units and b filtering units, when the a filtering units filter, when detecting that the floc scum reaches a certain amount, the filtering units are switched to the b filtering units to work, and meanwhile, the a filtering units start a slag discharging back flushing flow, and the slag is cleaned and discharged to enter standby. The two filter units are mutually switched in standby circulation. Compressed air is input from the compressed air input port B to assist in backwash.
Claims (10)
1. An iCER water treatment system, comprising:
an iCER circulation cabinet (1);
the neutralization module for adjusting the pH value of the wastewater comprises a neutralization cabinet (2) and a discharge cabin (3), wherein the neutralization cabinet (2) is provided with an air cooler condensate water input port (A), and the iCER circulation cabinet (1), the neutralization cabinet (2) and the discharge cabin (3) are sequentially communicated;
the alkali liquor filling unit (4) is used for adding alkali liquor, and the alkali liquor filling unit (4) is communicated with the neutralization cabinet (2) and the discharge cabin (3);
the filtering module (6) is used for filtering the wastewater, the discharge cabin (3) is communicated with an inlet of the filtering module (6) through the water supply pump (P1), and a liquid outlet of the filtering module (6) is communicated with the drainage pump (P2);
PAC filling unit (5) for feeding flocculant to filtration module (6).
2. The iCER water treatment system according to claim 1, wherein the filtration module (6) comprises two filtration units connected in parallel.
3. The ice r water treatment system according to claim 2, wherein the top of each filter unit is provided with a slag drain, which communicates with an oil slag tank (7).
4. The iCER water treatment system according to claim 2, wherein a backwash device is provided in each of the filter units.
5. The iCER water treatment system according to claim 4, wherein each of the filtration units is provided with a compressed air input (B) for communicating with a compressed air assisted backwash.
6. The iCER water treatment system according to claim 4 or 5, wherein one of the filter units in the filter module (6) is in a filter mode and the other filter unit is in a standby mode.
7. The iCER water treatment System according to claim 1, wherein the outlet of the drain pump (P2) is used for draining treated qualified water, and the outlet of the drain pump (P2) is in communication with at least one of the port (C) and the heating System storage tank (9) of the main air cooler, and the iCER circulation tank (1).
8. The iCER water treatment system according to claim 1, further comprising an oil detection unit for detecting whether the drain water at the outlet of the drain pump (P2) is acceptable, comprising an oil detection meter (8), the outlet of the drain pump (P2) being in communication with the inlet of the oil detection meter (8), the outlet of the oil detection meter (8) being in communication with a three-way valve, one of the three-way valve being for discharging treated acceptable water, the other outlet being in communication with the discharge compartment (3), the treated unacceptable water being in communication with the discharge compartment (3).
9. The iCER water treatment System of claim 8, wherein the outlet of the three-way valve for discharging treated water is in communication with at least one of an outboard port (C), a heating System storage tank (9) of a host air cooler, and an iCER circulation tank (1).
10. The iCER water treatment system according to claim 7 or 9, wherein in normal conditions, the treated acceptable water is in communication with an outboard port (C); when water is needed to be replenished, the treated qualified water is communicated with a water storage tank (9) of a welding System of the host air cooler; when the host operates the iCER system in the fuel mode, part of the treated qualified water is returned to the iCER circulation cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311102952.XA CN116986768A (en) | 2023-08-29 | 2023-08-29 | iCER water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311102952.XA CN116986768A (en) | 2023-08-29 | 2023-08-29 | iCER water treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116986768A true CN116986768A (en) | 2023-11-03 |
Family
ID=88528379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311102952.XA Pending CN116986768A (en) | 2023-08-29 | 2023-08-29 | iCER water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116986768A (en) |
-
2023
- 2023-08-29 CN CN202311102952.XA patent/CN116986768A/en active Pending
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