The oil-water separator is a device, which is divided intoCatering oil-water separatorandIndustrial oil-water separatorTwo.Catering oil-water separator iscatering tradeIt is used to treat sewage.Due to the requirements of environmental protection, the sewage discharged to the ship machinery space in rivers, lakes and seas must be treated, and industrial oil-water separator is required.
Compressed air oil-water separatorIt is used to separate the condensed water, oil and other impurities in the compressed air, so that the compressed air can be preliminarily purified. The general operating pressure is 0.1MPa - 2.5MPa.
Operating principle of compressed air oil-water separator:
When the compressed air enters the oil-water separator, there will be sharp changes in the flow direction and speedDensity ratioThe large oil drops and water drops of compressed air are separated.The common types are impact oil-water separator and annular rotary oil-water separator.After the compressed air enters the housing of the oil-water separator from the inlet, the air flow is first blocked by the baffle plate and hit by the baffle platebackDown, then up again, resulting in circular rotation.This makes water and oil dropletscentrifugal forceandinertia forceUnder the action, it separates from the air and settles at the bottom of the shell.
Oil water separator picture
The other oil-water separation system is internallyStainless steel wire meshCoalescing filler, the shell is of steel welded tank structure, and the general use pressure is 0.1MPa-2.5MPa.Its principle is to use whirlwind and stainless steel wire mesh to catch fogOrganic combinationAt the same time, direct interceptionInertial collisionBrownian diffusion and condensation mechanism can effectively remove dust, water, oil mist, waterDegreasingLarge volume, wide range of applicable working conditions.[1]
When compressed air and other gases containing oil and water enter the oil-water separatorliquid dropUnder the action of gravity, it falls to the bottom of the oil-water separator, and the small foggy droplets are captured by the screen and condensed into large droplets, which fall to the bottom of the oil-water separator.The entrained liquid is thus separated, and the separated liquid flows into the lower part and is discharged by manually opening the valve or installing air on the lower partDrainageThe valve is discharged from the body.
Marine
International Maritime OrganizationThe subordinate Marine Environmental Protection Committee approved IMO on July 18, 2003Resolution MEPC.107 (49).This resolution puts forward new requirements for the YWC 15ppm bilge oil-water separator in Annex I of MARPOL 73/78.Through thisMarine oil-water separatorIt can be used to remove the residues containing various fuel oils and extremely high density on the shipresidual oilAnd byferric oxide、surface active agent EtcEmulsionmixtureBilge waterConduct effective treatment.
Vehicle
Oil water separator
National standard IIIHigh pressure common rail engine for dieselquality requirementIt is also higher because of high pressureFuel injection nozzleNeed precise controlInjection pressureFuel injection time and quantity, so the workmanship is also quite exquisite.If there is water or impurities in the diesel fuel that are not filtered completelyPlunger couplingThe formation of wear causes strain untilFuel injectorStuck.Damaged fuel injectors may cause unstable or weak engine acceleration, or black smoke emission and other faults, affecting the normal operation of the vehicle.
As multilevelFilterThe first level of the system,Primary fuel filterIt has the function of filtering out large particles of impurities and moisture.
In order to make the engine drink clean and good diesel oil, only those substandard oils should be added“Secondary processing”It is the most simple and practical method to install a set of oil-water separator.[2]
effect
Announce
edit
takeOil-water separationA machine, usually used by ships to treat sewage.Due to the requirements of environmental protection, the sewage discharged to the ship machinery space in rivers, lakes and seas must be treated. The working principle of the oil-water separator system andWorkflow: 1 Water is composed ofAODPump (gas diaphragm) enters 2Flow control valveWhen entering the first stage honeycomb chamber, flush it with water. Because there are many compactHoneycombOfinterlayerIn the process of water upflow, the tiny particles in the water settle in the honeycomb chamber, and the waste water flows upflow into 4 mesh water distribution holes (5/32) and enters 5Adsorption chamberAnd extraction chamber, water flows into JT57 liquidFilter mediaOil adsorption chamberZhongyouAnd oil are adsorbed and extracted a large amount of complex heavy metals, organicsTSS、BTEX、PCBAnd many pollutants in water.Then the water flow turns upward in the adsorption chamber and enters 6 second stage honeycomb chambers. The water flow passes through the second stage compact honeycomb like interlayer and flows up and down three times. The residual trace oil will float up and collect on its upper part, and the water flow enters 7 clean water chambers. Finally, the water will be discharged from the bottom of the clean water chamber.For the residual trace oil on the upper part of the second stage honeycomb chamber and clean water chamberSkimmerTo be skimmed into an external oil storage container and removed.
Selection Note
Announce
edit
1. Purchase products from formal manufacturers
Oil water separatormarket priceFrom hundreds to thousands,Quality differenceRelatively large, and someFake and inferior productsIf you want to buy low-quality products cheaply, the final price may be a whole set of fuel injection nozzles, or even the engine. So when you buy the oil-water separator, you must go to the regular maintenance station to buy products of major mainstream brands.
In order to ensure the fuel supply of the whole engine system, the model of the added oil-water separator must be larger than the displacement of the original vehicle.
2. Pay attention to timely drainage
Don't worry about it when it is installed. There is a transparent plastic water cup under the oil-water separator. When you use the oil-water separator, you must pay attention to draining water in time. If there is too much water, the oil-water separator can't separate oil from water.
Some foreign manufacturers already have the function of automatic drainage, and the filter bowl below the oil-water separator is equipped withWater level sensor, when the water level reaches a certain valueDashboardThe computer screen above indicates that there is water, and the oil-water separator must be drained.Drainage operation is also very convenient, pull it up after parkingHandbrake, turn off the engine, turn the ignition key to the driving position, pressinstrument panelThe switch on the takes about 18 seconds to drain.
3. The heating function is selected in the north
In addition, cold weather is also easy to cause damage to the water under the water cup, especially inNorthern regionMany users put thick cotton padded clothes on the oil-water separator to prevent it from freezing.However, for the sake of safety, it is recommended to select oil-water separator with electric heating function.
Catering oil-water separatorMainly applicable to domestic oily sewageEmission pollutionSevere environment, the oil-water separator is an imported "grease trap", which is installed insewerThe outlet of, and the device used to prevent oil and garbage from discharging into the sewer, mainly includeFRP、stainless steelAnd other materials.Thanks to the advanced design (the product and its design are patented at home and abroad), the oil resistance rate can reach more than 90%.
Catering oil-water separator
Announce
edit
（1） Structural characteristics
The grease trap is a box structure, which can be buried underground or on the ground. After the anti-skid box cover is opened, the sewage flows into the residue trap chamber through the inlet, leaving solid matter. The sewage flows into the grease trap chamber through the lower edge of the diaphragmGravity separationA large amount of grease floats on the surface, the deoiled sewage flows into the grease trap chamber through the lower edge of the diaphragm, the grease is separated from the upper floating surface layer again, and the deoiled sewage outlet flows into the unified and standardized clean water sampling room specified by the National Environmental Protection Agency for sampling and discharge through the discharge pipe.
The whole grease trap is fine and reasonable in design, small in size and high in efficiency. The raw materials are stainless steel and glass fiber reinforced plastic.
Oil water separator
（2） Product features
1 Low price, no consumptionWearing partsOne time investment will benefit all the year round.
2 No electricity and power are needed, no operation cost is needed, and the sewage is purified by itself after flowing in, so the management is convenient.
3. The material is hard, easy to clean, and has a long service life.
4 Prevent the sewer from blocking, avoid the breeding of rats and insects caused by rotten oil, odor overflow and unnecessary cleaning, and extend the service life of the sewer.
Separator type selection
Announce
edit
1. Underground buried type
Conditions: There is underground burial space.
Location: as far as possible, it shall be set at the beginning of the drainage branch pipe (source of pollution).
Features: It does not occupy space and does not affect walking and transportation.
2. Hoisting type (ordinary type, fireproof type and special type)
Oil water separator
Conditions: On the second floor and above, use the ground reservationMounting hole。
Location: try to arrange the horizontal branch pipe of drainage at all times (source of pollution).
Features: firm installation, able to bear the dead weight of equipment, without affecting the ground quality andConstruction life。
Type: It can be divided into ordinary type, fireproof type and abnormal type according to needs.
3. Bed type
Conditions: There is no underground burial space, but there is ground placement.
Location: in front of the drainage branch pipe, with the sink,cooking benchOr the water table is directly connected.
4. Large
Conditions: both underground burial and bed placement are acceptable.
5: Manually controlled ejector rod andSolenoid valvewait
Management and maintenance
Announce
edit
Engine operation management personnel are using oil and waterseparatorBefore starting the separator, learn about the startup, operation and maintenance requirements of the separator according to the use and maintenance instructions of the product.
1： Startup inspection and preparation
1: Before using oil-water separator to dischargebridgeConsent of
2: Check the line installation of the oil-water separator and whether the steering of the matching pump is normal
3: Supply water to the oil-water separatorAir valveOpen to allow air to escape
4: Check whether there is any leakage on the water inlet and outlet system of the oil-water separator
2： Precautions during operation
1: Adjust the opening of the discharge water pipeline valve to maintain the pressure in the separator to facilitate the discharge of dirty oil in the separator
3: Observe the treated drainage water quality and oil concentrationa burglar alarmOperation of
4: After discharge, continue to inject clean water for 15min to clean the separator
5: Close the inlet and outlet valves after stopping the pump to avoid water loss in the cylinder and reduce oxidation and corrosion of the inner wall
6: Each time the oil-water separator is used for drainage,Should beRecord in the oil record book
3： Maintenance
1: Clean the filter regularly and open the bottom of the separatorRelief valve, remove the sediment and impurities deposited in the lower part
2: Clean the internal separation elements of the separator in time, and do not clean the inner wall and elements of the separator with cleaning agent
3: In case of failure, find out the cause and replace the failed coalescing element in time
4： Internal anti-corrosion
1. Internal anti-corrosion of small oil-water separator
Crude oil just came fromunderground mining When I came out, the temperature was relatively high, becauseAcid gasPresence of, crude oil (oil, water, gasMixed liquid）It is very corrosive.How to prevent high temperature corrosion has always been a subject.Since 2005, high-temperature anti-corrosion polymer composite has become a major method of high-temperature anti-corrosion, as an efficient, inexpensive, high-performance oil-water separatorProtection technologyBe trusted by the enterprise.Polymer compositesIn this respect, the advantages are obvious. High temperature performance is better than that of general coating technology, corrosion resistance is often better than that of coatings resistant to the same temperature, and wear resistance, which are unmatched by other coating systems.
2. Internal anti-corrosion of large oil-water separator
The oil-water separator is made of ordinary steel. If it is not sprayed, it will soon be corroded. Because there is sulfur and water in the crude oil, and the temperature is relatively high, there is flow, impact and corrosion. The ordinary coating is not good. If it is made of stainless steel, the cost is too high.Adopt the United StatesMeijiahuaSeries high temperature resistancePolymer compositesOfapplied technologyIt is very special. Generally, the spraying is completed within one hour, forming a top of 0.4mm, and other middle to top and bottom of 1.4mm (55 mils) in one go.The thickness of the coating can make it more wear-resistant. When other coatings are sprayed to this thickness, it takes 2-3 layers or more to spray for more than 5 days.This is not only a problem of construction efficiency, but also a problem of quality and life.
working principle
Announce
edit
1: BySewage pumpThe oily sewage is sent to the oil-water separator, and after passing through the diffusion nozzle, the large oil droplets float on the top of the left oil collecting chamber;
2: The sewage containing small oil drops enters the corrugated plate coalescer in the lower part, where the oil drops in the polymerized part form larger oil drops to the right oil collecting chamber;
3: The sewage containing smaller oil droplets passes through the fineFilterThe impurities in the water are removed, and then enter the fiber polymerizer in turn, so that small oil drops can be aggregated into larger oil drops and separated from water;
4: After separation, clean water is discharged through the discharge port, and dirty oil in the left and right oil collecting chambers passes throughSolenoid valveThe waste oil separated from the fiber polymerizer is discharged automatically throughManual valveexclude.
Setting out- ExcavationBasal groove- Drainage of underground water -cushionLeveling and tamping - bedding coarse sand - septic tank in place and installation - connecting pipe water injection - backfilling in layers - connecting well masonryInspection well- Preliminary acceptance on site - ground, pavement or greening.
The yellow sand with a thickness of 150-200mm shall be used to remove large sharp bricks and stones or hard sundries carried in the sand, level and compact them, and prepare the septic tank for installation.
Installation in place
It is better to use small hoisting for small tanks (or manually roll pipes in place for installation). Before hoisting in place, the base cushion must be leveled. When hoisting, attention must be paid to the inlet and outlet direction of the septic tank. The end pointed by the arrow is the outlet direction. Please check whether it conforms to theEngineering design drawingIt is required that the elevation of the septic tank must meet the requirements of the engineering design drawing. After the product is hoisted in place, the levelness shall be measured, and the cushion shall be adjusted locally to make it horizontal.
Septic tank water injection
After the installation in place meets the requirements, the pool must be filled with water more than the groundwater level to stabilize it (the water filling volume should be more than half of the volume), and special fillers should be added,back fillAfter reaching a certain height, connect the pipeline and seal it tightly according to the design requirements of the drawing.
Layered backfill and connection well masonry
It is strictly prohibited toConstruction wasteAs soil backfill, large sharp stones in the backfill shall be removed, and hard blocks such as organic matter, frozen soil and large bricks shall not be usedFine-grained soilFor backfilling, the backfill shall be compacted layer by layer, 300 mm for each layer, and it is advisable to use manual compaction. Local strong impact shall be avoided. The provisions of backfill operation in the construction specifications must be followed, and the backfill around the pool must be compacted.Backfilling to constructionSpecification requirementsThen the inlet and outlet connecting wells can be built. The connecting wells shall be constructed according to the general drawing of waterway. The inner diameter of the inspection well at the inspection port of this product is 700mm, and the specific method is the current methodnational standardAtlas.Bottom cushion must be compacted and then pouredConcrete floor, make launder in the well, and strictly implementengineering designValue elevation.
Specification and model
Announce
edit
Marine oil-water separatorTen in totalSpecification and modelThe smallest YWC-0.25 (z) marine oil-water separator can be configured for ships with a tonnage of less than 1000 tons, and the largest YWC-5 marine oil-water separator can be configured for large ships with a tonnage of more than 300000 tons. All oil-water separators must passChina Classification SocietyThe specific models of oil-water separator are as follows:
In industryCompressed gasThe oil-water separator is also usually used in the transmission process of, so as to avoid the damage of electromagnetic valves and other electrical components caused by impurities mixed in the compressed air.
