CN113072130A - Bilge oil-water separator - Google Patents

Bilge oil-water separator Download PDF

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Publication number
CN113072130A
CN113072130A CN202110466964.5A CN202110466964A CN113072130A CN 113072130 A CN113072130 A CN 113072130A CN 202110466964 A CN202110466964 A CN 202110466964A CN 113072130 A CN113072130 A CN 113072130A
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CN
China
Prior art keywords
water
oil
unit
pipe
bilge
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Granted
Application number
CN202110466964.5A
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Chinese (zh)
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CN113072130B (en
Inventor
王辉
单亚光
梁新武
常城
任坤
武智勇
张磊
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Xinxiang Wanhe Filtration Technology Co ltd
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Xinxiang Wanhe Filtration Technology Co ltd
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Publication of CN113072130A publication Critical patent/CN113072130A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/008Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/002Construction details of the apparatus

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  • 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)
  • Analytical Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The embodiment of the invention relates to the technical field of oil-water separators, in particular to a bilge oil-water separator which comprises a base, wherein a coalescence unit and an emulsification unit are arranged on the base, and are communicated with each other through a plunger pump; an oily water inlet pipe is arranged on one side of the coalescence unit, an electric cabinet is arranged on the front side of the coalescence unit, and a ppm bilge water alarm device electrically connected with the electric cabinet is arranged on the front side of the emulsification unit; the coalescence unit realizes automatic water supply and oil discharge through the action of the electric cabinet, and the emulsification unit realizes water discharge and backflow through the action of the ppm bilge water alarm device and the electric cabinet. The embodiment of the invention has the beneficial effects that: the integrated device is high in integration degree, achieves autonomous oil discharge and water discharge, achieves detection and backflow of water discharge, guarantees that water up to standard is discharged outboard, is high in overall automation degree, and is safe and reliable to use.

Description

Bilge oil-water separator
Technical Field
The invention relates to the technical field of oil-water separators, in particular to a bilge oil-water separator.
Background
Daily oil pollution of ships mainly comes from bilge oil sewage, and international maritime organization also passes through 73/78 antifouling convention in 1978 to enforce the requirement of ship installation of an oil-water separator. The international maritime organization in 1992 approved "guidelines and technical conditions for ship engine room bilge water anti-pollution equipment" in resolution imo. mepc.60(33), and proposed a higher standard that the oil content of the bilge water discharged into the ocean (excluding emulsified oil) is not allowed to exceed 15 ppm. The resolution of the 2003 IMO.MEPC.107(49) passed revised guidelines and technical conditions for equipment for pollution prevention of bilge water at the ship's machinery, replaced the resolution of MEPC.60(33), added oil-water emulsion in the technical conditions of performance tests, put higher technical standards on bilge water separators, which must be able to handle all oily mixtures from the bilge at the machinery, and be effective on various oils that may be carried on the ship, including residual fuel oil of extremely high relative density. And for the first time suggest that the bilge water separator must be able to handle mixtures that appear as emulsions that are extremely difficult to separate. It is proposed that the bilge water discharged into the ocean does not have an oil content (including emulsified oil) that allows higher standards of more than 15 ppm.
However, due to technical reasons and complex bilge oil-water components, the conventional oil-water separation device is low in separation efficiency and poor in effect, and cannot meet the requirements of ships on small size and light weight of equipment.
Therefore, there is a need for a bilge oil water separator that overcomes the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems, an embodiment of the present invention provides a bilge oil-water separator, including a base, where a coalescing unit and an emulsifying unit are arranged on the base, and the coalescing unit and the emulsifying unit are communicated with each other through a plunger pump; an oily water inlet pipe is arranged on one side of the coalescence unit, an electric cabinet is arranged on the front side of the coalescence unit, and a ppm bilge water alarm device electrically connected with the electric cabinet is arranged on the front side of the emulsification unit; the coalescence unit realizes automatic water supply and oil discharge through the action of the electric cabinet, and the emulsification unit realizes water discharge and backflow through the action of the ppm bilge water alarm device and the electric cabinet.
Furthermore, an oil discharge pipe is arranged at the top end of the coalescence unit, and an oil discharge check valve and an oil discharge electromagnetic valve electrically connected with the electric cabinet are arranged on the oil discharge pipe.
Furthermore, the oily water inlet pipe is communicated with a water supplementing pipe, the water supplementing pipe is provided with a water supplementing electromagnetic valve electrically connected with the electric cabinet, and the water supplementing pipe is externally connected with a water tank.
Furthermore, an oil-water interface instrument electrically connected with the electric control box is arranged on one side, close to the top end, of the coalescence unit, and a liquid level switch is arranged at the top end of the coalescence unit.
Furthermore, the oily water inlet pipe is provided with a check valve and a prefilter which are positioned at the lower section of the water replenishing pipe, and the oily water inlet pipe is externally connected with the oily water tank.
Furthermore, a drainage header pipe is arranged at the top end of the emulsification unit, the free end of the drainage header pipe is communicated with a water return pipe and a water outlet pipe, a water return electromagnetic valve electrically connected with the electric cabinet is arranged on the water return pipe, and a drainage electromagnetic valve electrically connected with the electric cabinet is arranged on the water outlet pipe.
Furthermore, a sampling pipe orifice is arranged on the drainage main pipe, and a sampling valve is arranged on the sampling pipe orifice; and a second pressure gauge is arranged on the main drainage pipe.
Furthermore, a heater controlled by an electric cabinet is arranged in the coalescence unit, and an electric contact thermometer electrically connected with the electric cabinet is arranged on the coalescence unit.
Further, the bottom ends of the coalescence unit and the emulsification unit are communicated with a discharge port through a pipeline, a ball valve is arranged on the pipeline between the discharge port and the coalescence unit, and a ball valve is arranged on the pipeline between the discharge port and the emulsification unit.
Furthermore, an oil detection port is arranged on one side of the coalescence unit close to the upper end, an oil detection valve is arranged on the oil detection port, and a first exhaust valve and a first pressure gauge electrically connected with the electric cabinet are arranged at the top end of the coalescence unit; and a second exhaust valve is arranged at the top end of the emulsification unit.
Furthermore, an oil-water separation device is arranged in the coalescence unit, the oil-water separation device comprises a guide plate which is arranged in the coalescence unit and close to the upper end, polyurethane foam cotton is arranged below the guide plate, activated carbon filter cotton is arranged below the polyurethane foam cotton, a porous support plate is arranged below the activated carbon filter cotton, a filter cylinder is arranged below the porous support plate in a spaced mode, a vertical water distributor is arranged in the filter cylinder, a fine filter element is arranged in the water distributor, a water inlet hole corresponding to the center of the water distributor is formed in the top of the filter cylinder, and a water outlet hole is formed in the bottom of the filter cylinder.
The embodiment of the invention has the beneficial effects that: the integrated device is high in integration degree, satisfies the naval vessel to small, light requirement of equipment volume, realizes independently arranging oil, drainage to realize the detection and the backward flow of drainage, guarantee that the water up to standard discharges outboard, whole degree of automation is high, cooperation alarm device uses safe and reliable more, and coalescence unit realizes water oil separating's process, and separation efficiency is high, and is respond well, is difficult for blockking up, and it is more convenient to use.
Drawings
FIG. 1 is a schematic structural diagram of a bilge oil-water separator according to the present invention;
FIG. 2 is a second schematic structural diagram of the bilge oil-water separator of the present invention;
FIG. 3 is a schematic structural diagram of the bilge oil-water separator of the present invention;
FIG. 4 is a system schematic of the bilge oil water separator of the present invention;
FIG. 5 is a schematic view of the oil-water separator according to the present invention;
FIG. 6 is a schematic structural view of a porous support plate according to the present invention;
fig. 7 is a schematic view showing the internal structure of the filter cartridge according to the present invention.
In the figure:
1. a base;
2. a coalescing unit; 201. a first pressure gauge; 202. a liquid level switch; 203. a first exhaust valve; 21. an oil discharge pipe; 211. an oil discharge electromagnetic valve; 212. an oil discharge check valve; 22. an oil detection port; 23. an oil-water interface instrument; 24. an electric contact thermometer; 25. a water replenishing pipe; 251. a water tank; 252. a water replenishing electromagnetic valve; 26. the oily water enters the pipe; 261. a prefilter; 262. a check valve; 263. an oil-sewage tank; 27. a heater; 28. an oil detection valve;
3. an emulsification unit; 31. a drainage manifold 311, a sampling pipe orifice; 312. a second pressure gauge; 32. a water return pipe; 321. a water return electromagnetic valve; 33. a water outlet pipe; 331. a water discharge electromagnetic valve; 34. a second exhaust valve;
4. a discharge port; 41. a ball valve;
5. an electric cabinet;
6. 15ppm bilge water alarm device;
7. a plunger pump;
8. an oil-water separation device; 80. a baffle; 81. polyurethane foam cotton; 82. activated carbon filter cotton; 83. a porous support plate; 84. a filter cartridge; 841. a water distributor; 842. a water inlet hole; 843. and (7) water outlet holes.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
Referring to fig. 1 to 4, the embodiment of the invention discloses a bilge oil-water separator, which comprises a base 1, wherein a coalescing unit 2 and an emulsifying unit 3 are arranged on the base 1, and the coalescing unit 2 is communicated with the emulsifying unit 3 through a plunger pump 7; an oily water inlet pipe 26 is arranged on one side of the coalescence unit 2, an electric cabinet 5 is arranged on the front surface of the coalescence unit 2, and a 15ppm bilge water alarm device 6 electrically connected with the electric cabinet 5 is arranged on the front surface of the emulsification unit 3; the coalescence unit 2 realizes automatic water supply and oil discharge through the action of the electric cabinet 5, and the emulsification unit 3 realizes water discharge and backflow through the action of the 15ppm bilge water alarm device and the electric cabinet 5.
The top end of the coalescence unit 2 is provided with an oil discharge pipe 21, and the oil discharge pipe 21 is provided with an oil discharge check valve 212 and an oil discharge electromagnetic valve 211 electrically connected with the electric cabinet 5; the oil sewage inlet pipe 26 is communicated with a water replenishing pipe 25, the water replenishing pipe 25 is provided with a water replenishing electromagnetic valve 252 electrically connected with the electric cabinet 5, and the water replenishing pipe 25 is externally connected with a water tank 251; an oil-water interface instrument 23 electrically connected with the electric control box 5 is arranged on one side of the coalescence unit 2 close to the top end, and a liquid level switch 202 is arranged at the top end of the coalescence unit 2; the oily water inlet pipe 26 is provided with a check valve 262 and a prefilter 261 which are positioned at the lower section of the water replenishing pipe 25, and the oily water inlet pipe 26 is externally connected with an oily water tank 263.
The top end of the emulsifying unit 3 is provided with a main drainage pipe 31, the free end of the main drainage pipe 31 is communicated with a return pipe 32 and a water outlet pipe 33, the return pipe 32 is provided with a return electromagnetic valve 321 electrically connected with the electric cabinet 5, and the water outlet pipe 33 is provided with a drain electromagnetic valve 331 electrically connected with the electric cabinet 5.
A sampling pipe orifice 311 is arranged on the drainage main pipe 31, and a sampling valve is arranged on the sampling pipe orifice 311; the drain manifold 31 is provided with a second pressure gauge 312.
A heater 27 controlled by the electric control box 5 is arranged in the coalescence unit 2, and an electric contact thermometer 24 electrically connected with the electric control box 5 is arranged on the coalescence unit 2.
The bottom ends of the coalescence unit 2 and the emulsification unit 3 are communicated with a discharge port 4 through a pipeline, a ball valve 41 is arranged on the pipeline between the discharge port 4 and the coalescence unit 2, and a ball valve 41 is arranged on the pipeline between the discharge port 4 and the emulsification unit 3.
An oil detection port 22 is arranged on one side of the coalescence unit 2 close to the upper end, an oil detection valve 28 is arranged on the oil detection port 22, and a first exhaust valve 203 and a first pressure gauge 201 electrically connected with the electric cabinet 5 are arranged at the top end of the coalescence unit 2; a second exhaust valve 34 is arranged at the top end of the emulsifying unit 3.
The operation principle of the bilge oil-water separator is specifically that in the working process, the plunger pump 7 is started to work, negative pressure is generated in the coalescing unit 2, oil stain in the oily water tank 263 enters the coalescing unit 2 after being pretreated by the prefilter 261 on the oily water inlet pipe 26, namely the Y-shaped filter, oil drop is gathered on the upper part of the coalescing unit 2 under the action of gravity generated by oil-water density difference in the coalescing unit 2, the oil drop floats to the gravity separation chamber at the top of the coalescing unit 2, the space above the porous medium coalescing layer (81) in the coalescing unit 2 is the gravity separation chamber, when the oily water layer at the upper end of the gravity separation chamber in the coalescing unit 2 reaches a certain thickness, a probe of the oil-water interface instrument 23 detects the oil, the oil-water interface instrument 23 sends a signal to the electric control box 5, the electric control box 5 controls the plunger pump 7 to stop running, the drainage electromagnetic valve 331 and the water return electromagnetic valve 321 are, the water replenishing solenoid valve 252 and the oil drain solenoid valve 211 are simultaneously opened to drain oil. The thickness of the oil layer is gradually reduced along with the continuation of the oil drainage time, when the water level exceeds the position of the probe of the oil-water interface instrument 23, the probe of the oil-water interface instrument 23 detects water and sends an oil drainage stopping signal, the electric cabinet 5 can carry out delayed oil drainage action, after the delayed oil drainage is finished, the water supplementing electromagnetic valve 252 and the oil drainage electromagnetic valve 331 are closed, the oil drainage is stopped, and the plunger pump 7 continues to operate. When the oil-water interface meter 23 detects the oil again, the above operation is repeated.
The lower layer of the coalescence unit 2 enters the emulsification unit 3, and finally, all tiny emulsified oil particles are adsorbed and separated under the adsorption action of a separator of the emulsification unit 3, so that the oil content of the bilge oil-containing sewage is less than 15 ppm. When water flows out through the drainage main pipe 31, the water is detected through the 15ppm bilge water alarm device 6, after qualified water is detected, the electric cabinet 5 can open the drainage electromagnetic valve 331 to be discharged to the outboard, if unqualified water is detected, the electric cabinet 5 can open the return water electromagnetic valve 321 to enter the return water pipe 32, and the return water pipe 32 enters the oily water tank 263 again.
The self-temperature control principle in the coalescer unit 2 allows the oil of high viscosity in the coalescer unit 2 to be smoothly discharged and prevents the dirty oil from adhering to the oil-water interface meter 23 to cause control failure. Specifically, the temperature of the oil in the coalescing unit 2 is detected by the electric contact temperature meter 24, a signal is input into the electric control box 5, the electric control box 5 heats the heater 27, and the temperature is automatically controlled. The temperature of the electrical contact thermometer 24 is typically set at 40 c to 60 c.
According to the automatic oil discharge principle of the coalescence unit 2, an oil-water interface instrument 23 is arranged at the upper part of the coalescence unit 2, and corresponding signals are sent out by utilizing the difference of the electrical conductivity of two media of oil and water, so that the control function of opening and closing corresponding to an electromagnetic valve is realized, and the purpose of automatic oil discharge is achieved.
The control box 5 is provided with a feedback signal contact to the middle control console and can provide an equipment running state signal and a comprehensive fault alarm signal; the water level sensor in the oily sewage tank 263 is electrically connected with the control box 5, the control box 5 can receive signals of low water level and medium water level of bilge water, can start the equipment to operate at the medium water level, can be automatically in a standby state at the low water level and automatically recover to operate at the medium water level again; in addition, the control box can also monitor signals of the 15ppm bilge water alarm device 6 in real time, and can automatically control corresponding electromagnetic valves besides the display of an alarm red light so as to switch qualified water discharge or overproof water return of the bilge water separator.
Wherein, the 15ppm bilge water alarm device 6 adopts a GQS-206 oil content concentration meter, is the 15ppm bilge water alarm device 6 designed by adopting an infrared measurement technical principle and an advanced micro-processing technology according to the requirements of the international maritime organization IMO MEPC.107(49), and is generally matched with a bilge water separator for use. The alarm is used for automatically detecting the quality of the discharged water and controlling the corresponding electromagnetic valve to return the discharged water which does not reach the standard to the sewage tank. The alarm is approved by China classification society, and the technical performance of the alarm meets the regulations of '15 ppm bilge water alarm device type approval test and performance technical condition' in part 2 and 'anti-pollution device type approval environmental test technical condition' in 'revised ship cabin bilge water anti-pollution equipment guide and technical condition' in part 3 in 'IMOMEPC.107 (49)' revised 7, 18 days in 2003. The instrument has reasonable design structure, firmness and protection grade reaching 1P 65. The product is suitable for detecting and monitoring oily sewage at the bilge of ships, ports, docks, industrial and mining enterprises and the like.
As shown in fig. 5-7, an oil-water separation device 8 is disposed in the coalescing unit 2, the oil-water separation device 8 includes a flow guide plate 80 disposed in the coalescing unit 2 near the upper end, a polyurethane foam 81 is disposed below the flow guide plate 80, an activated carbon filter 82 is disposed below the polyurethane foam 81, a porous support plate 83 is disposed below the activated carbon filter 82, a filter cartridge 84 is disposed below the porous support plate 83 in a spaced manner, a vertical water distributor 841 is disposed in the filter cartridge 84, a fine filter element is disposed in the water distributor 841, a water inlet 842 corresponding to the center of the water distributor 841 is disposed at the top of the filter cartridge 84, and a water outlet 843 is disposed at the bottom of the filter cartridge 84.
After entering the coalescing unit 2, the oily water passes through the through hole in the center of the flow guide plate 80 and then is continuously filtered downwards, the flow guide plate 80 with a conical structure is made of stainless steel materials and intercepts the oily water to prevent the oily water from directly impacting a filter layer, the oily water passes through the polyurethane foam 81, the polyurethane foam 81 intercepts large oil molecules to enable the large oil molecules to coalesce and float upwards, the oily water continuously passes through the active carbon filter cotton 82 downwards, the active carbon filter cotton 82 further intercepts fine oil molecules to coalesce into large oil molecules to enable the large oil molecules to coalesce and float upwards, then the water continuously enters the water distributor 841 downwards through the water inlet 842, the fine oil molecules are further adsorbed by a fine filter core, namely a melt-blown polypropylene filter core, in the water distributor 841, then the fine oil molecules are discharged through the water outlet 843 and enter the emulsifying unit 3 to carry out emulsification, the coalescing unit 2 realizes the oil-water separation process, the, good effect, difficult blockage and more convenient use.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. The bilge oil-water separator comprises a base (1), and is characterized in that a coalescence unit (2) and an emulsification unit (3) are arranged on the base (1), and the coalescence unit (2) and the emulsification unit (3) are communicated through a plunger pump (7); an oily water inlet pipe (26) is arranged on one side of the coalescence unit (2), an electric cabinet (5) is arranged on the front side of the coalescence unit (2), and a 15ppm bilge water alarm device (6) electrically connected with the electric cabinet (5) is arranged on the front side of the emulsification unit (3); the coalescence unit (2) realizes automatic water supply and oil discharge through the action of the electric cabinet (5), and the emulsification unit (3) realizes water discharge and backflow through the action of the 15ppm bilge water alarm device and the electric cabinet (5).
2. Bilge oil-water separator according to claim 1, characterized in that the top end of the coalescing unit (2) is provided with an oil drain pipe (21), the oil drain pipe (21) being provided with an oil drain check valve (212) and an oil drain solenoid valve (211) electrically connected to the electric cabinet (5).
3. The bilge oil-water separator according to claim 2, wherein a water replenishing pipe (25) is communicated with the oily water inlet pipe (26), a water replenishing electromagnetic valve (252) electrically connected with the electric cabinet (5) is arranged on the water replenishing pipe (25), and the water replenishing pipe (25) is externally connected with a water tank (251).
4. Bilge oil-water separator according to claim 3, characterized in that the coalescing unit (2) is provided with an oil-water interface meter (23) on the side close to the top end, which is electrically connected with an electric control box (5), and the top end of the coalescing unit (2) is provided with a liquid level switch (202).
5. The bilge oil-water separator according to claim 3, wherein the oily water inlet pipe (26) is provided with a check valve (262) and a prefilter (261) at the lower section of the water replenishing pipe (25), and the oily water inlet pipe (26) is externally connected with the oily water tank (263).
6. The bilge oil-water separator according to claim 4, wherein a water drain main pipe (31) is arranged at the top end of the emulsifying unit (3), a water return pipe (32) and a water outlet pipe (33) are communicated with the free end of the water drain main pipe (31), a water return electromagnetic valve (321) electrically connected with the electric control box (5) is arranged on the water return pipe (32), and a water drain electromagnetic valve (331) electrically connected with the electric control box (5) is arranged on the water outlet pipe (33).
7. The bilge oil-water separator according to claim 6, wherein a sampling pipe opening (311) is arranged on the drain main pipe (31), and a sampling valve is arranged on the sampling pipe opening (311); and a second pressure gauge (312) is arranged on the drainage main pipe (31).
8. Bilge oil-water separator according to claim 4, characterized in that a heater (27) controlled by an electric cabinet (5) is provided in the coalescer unit (2), and that an electric contact temperature gauge (24) is provided on the coalescer unit (2) in electrical connection with the electric cabinet (5).
9. The bilge oil-water separator according to claim 1, wherein the bottom ends of the coalescing unit (2) and the emulsifying unit (3) are both communicated with a discharge port (4) through a pipeline, a ball valve (41) is arranged on the pipeline between the discharge port (4) and the coalescing unit (2), and a ball valve (41) is arranged on the pipeline between the discharge port (4) and the emulsifying unit (3); an oil detection port (22) is formed in one side, close to the upper end, of the coalescence unit (2), an oil detection valve (28) is arranged on the oil detection port (22), and a first exhaust valve (203) and a first pressure gauge (201) electrically connected with the electric cabinet (5) are arranged at the top end of the coalescence unit (2); and a second exhaust valve (34) is arranged at the top end of the emulsification unit (3).
10. Bilge oil-water separator according to any one of claims 1 to 9, an oil-water separation device (8) is arranged in the coalescence unit (2), the oil-water separation device (8) comprises a guide plate (80) which is positioned in the coalescence unit (2) and is close to the upper end, a polyurethane foam (81) is arranged below the guide plate (80), an activated carbon filter cotton (82) is arranged below the polyurethane foam (81), a porous support plate (83) is arranged below the active carbon filter cotton (82), a filter cylinder (84) is arranged below the porous support plate (83) in a spaced manner, a vertical water distributor (841) is arranged in the filter cylinder (84), a fine filter element is arranged in the water distributor (841), the top of the filter cylinder (84) is provided with a water inlet hole (842) corresponding to the center of the water distributor (841), and the bottom of the filter cylinder (84) is provided with a water outlet hole (843).
CN202110466964.5A 2021-04-28 2021-04-28 Bilge oil-water separator Active CN113072130B (en)

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CN202110466964.5A CN113072130B (en) 2021-04-28 2021-04-28 Bilge oil-water separator

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CN113072130B CN113072130B (en) 2024-04-26

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JP4621803B1 (en) * 2010-03-18 2011-01-26 株式会社ワールドケミカル Self-priming oil / water separator
CN202052352U (en) * 2010-06-22 2011-11-30 郑沛霖 Bilge water separator
CN202705134U (en) * 2012-07-27 2013-01-30 中国人民解放军后勤工程学院 Compact movable oily wastewater treatment device
WO2016127274A1 (en) * 2015-02-09 2016-08-18 华东理工大学 Step-by-step oil-water mixture separation method coupled with oil gas washing

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