CN201470154U - On-line automatic backwash oil-water separation device - Google Patents

On-line automatic backwash oil-water separation device Download PDF

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Publication number
CN201470154U
CN201470154U CN2009202042747U CN200920204274U CN201470154U CN 201470154 U CN201470154 U CN 201470154U CN 2009202042747 U CN2009202042747 U CN 2009202042747U CN 200920204274 U CN200920204274 U CN 200920204274U CN 201470154 U CN201470154 U CN 201470154U
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water
oil
water inlet
sewage
filter
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CN2009202042747U
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洪川
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SHENZHEN LAND ECO ENVIRONMENT TECHNOLOGY Co Ltd
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SHENZHEN LAND ECO ENVIRONMENT TECHNOLOGY Co Ltd
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Abstract

An on-line automatic backwash oil-water separation device comprises a rapid filter (1), an oil-water separator (2), a PLC (7) and a sewage water inlet pipeline component (3) with a pneumatic valve arranged thereon and electrically thereto, a backwash water inlet pipe component (4), a compressed air pipeline component (5), and a drain pipeline component (6); the backwash water inlet pipeline component (3) and the drain pipeline component (6) are communicated with a water inlet of the rapid filter (1); a water outlet of the rapid filter (1) is communicated with a water inlet of the oil-water separator (2), the backwash water inlet pipeline component (4) and the compressed air pipeline component (5); the sewage inlet pipeline component (3) is equipped with an electric contact pressure gauge (33) for triggering the pneumatic valve and automatically starting the backwashing; the on-line automatic backwash oil-water separation device has the advantages that: it is able to process the oily sewage with complicated water quality from various industries; the separation precision is high; the backwash can be automatically carried out based on the pollution degree of the filtering material.

Description

Online from the backpulsing oily-water seperating equipment
Technical field the utility model relates to the separation of immiscible liquid, particularly relates to online from the backpulsing oily-water seperating equipment.
Background technology modern industry enterprise all may produce oil-polluted water aborning, if oil-polluted water is not added the direct discharging meeting of processing ecological environment is not damaged.In recent years, along with the raising of entire society's environmental protection consciousness, the treatment technology of this oil-polluted water is also emerged in an endless stream.Prior art oil water separator separation principle mainly contains four kinds: gravitational method, absorption method, film differential method and coarse method.
Gravitational method mainly is to utilize profit proportion difference according to Stock ' s principle, uses some technological means that small greasy dirt is assembled and grows up to float and separate.Common equipment has gravity oil interceptor, inclined plate grease pond and air supporting etc.The method can not be separated oil emulsion, and separating effect and efficient are all relatively poor, and separation accuracy is generally about 30mg/l.Because technology is simple, is the main means of present water-oil separating, is used for the less demanding occasion of separation accuracy.
Absorption method is finished water-oil separating according to absorption principle, promptly by certain sorbing material (as bigger serface materials such as fiber, activated carbon), thereby oil is adsorbed on material surface oil is deviate from from water.Common equipment has active carbon adsorption column, paper and asphalt felt etc.The method is the saturated adsorption function that loses owing to material can adsorb, re-use to do the desorption processing, and the saturated back of sorbing material desorption difficult treatment, the complicated expense height of process, poor practicability, the less application of industrial production only is used to handle the little situation of the water yield.
Membrane separation process is to utilize the screening principle of film that the oil molecule big than water held back separation, and common equipment has milipore filter equipment.The method processing accuracy height is a kind of water-oil separating means that develop rapidly at present.But also exist not enough: at first reverse osmosis membrane is afraid of oil, and the pollution-resistant membrane technology is still immature, and membrane material mostly is import, and the life-span is short, price is high; Secondly power consumption is bigger, and the producing water ratio of reverse osmosis membrane is about 70%, promptly handles 100m every day 3Oil-containing water can produce 70m 3Clear water and 30m 3Concentrate oil-containing water, handle for the little water yield, this condensed water of 30% can be mixed in the coal and be burnt, and just can't carry out for handling than big yield, has limited the practical application of the method.
Angle of wetting that the coarse method produces when using a kind of coarse material to make profit contact this material surface is different and differentiation is assembled, and breaks away from this material surface come-up thereby make small oil droplet assemble the back of growing up at this material surface.This process is called coarse, uses this method generally as using sand filter, uses the coarse material to make filtering layer, adopts the reverse flow mode to move.The coarse method makes oil droplet cohesion mode comprise perikinetic aggregation and wettingly condenses two kinds.The perikinetic aggregation method increases the kinetic energy of oil droplets as utilizing external energies such as heating, ultrasonic wave, it is collided mutually and the combination come-up of growing up.Wetting coagulation method be make oil certain material surface be easy to wetting and its moistened surface angle much larger than water to this surperficial moistened surface angle, thereby make tiny oil droplet wetting at material surface, assemble and grow up to certain size, its buoyancy has overcome oil and the wetting adhesive force of material surface has been broken away from the material surface come-up.The coarse common used material has walnut shell, anthracite, some ore, some wire, chemical fibre etc., and various filtrations, the condenser made from these coarse materials has that cost is low, good separating effect, advantage that treating capacity is big.But the subject matter that coarse method oil water separator exists in application is: if contain the part suspension in the water, will stop up the water-oil separating material, though backwash has certain effect, the life-span of material still can descend greatly.
The technology that the Granted publication file of Chinese patent ZL200510034499.9 discloses a kind of " bi-directional flow surface aggregate formula oil water separator ", its water-oil separating is finished by double-filtration, the acrylic short fiber medium that make, that be used to separate profit that filtering technique utilizes a kind of surface to be coated with through surface modification and pressure modifier treatment comes oil-polluted water is carried out direct water-oil separating, fine for the oil-polluted water result of use of handling height emulsification, but relatively poor, and there is not backwashing function for the wastewater treatment efficiency that contains a large amount of suspensions.
Yet there are no in the market as the extensive profit filtering separation device of a kind of scope of application that the utility model proposes, a kind ofly can guarantee separating oil crystal degree height, processing accuracy water outlet oil-containing can be 5mg/l or lower; The filtering accuracy that can use aqueous suspension again reaches≤10mg/l, and the filter plant of the on-line automatic backwash of energy (not needing to establish recoil pond and recoil pump system in addition).
Utility model content the technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part, and prior art is done further improvement, high and the oily-water seperating equipment that can on-line automatic backwash of a kind of applied widely, water-oil separating precision is proposed.
The utility model is to solve the technical problem the technical scheme that proposes to be, design a kind of online from the back flush type oily-water seperating equipment, comprise rapid filter and oil water separator, described oil water separator comprises two independently by first of pipeline connection, two liang of cavitys, each cavity top is equipped with catchment cup, described first, be provided with the surface in two liang of cavitys and twine the filter core of tiing up the water-oil separating medium of making through the acrylic fiber of surface modification and pressure modifier treatment, have water inlet and delivery port on described first cavity and second cavity, the water that delivery port will be connected with after pipeline will filter is discharged, and this two cavity bottom all has sewage draining exit; Especially,
Also comprise sewage water inlet pipe road assembly, recoil water inlet pipeline assembly, compressed air line assembly, blowoff line assembly and programmable logic controller (PLC) PLC; Described sewage water inlet pipe road assembly comprises sewage water inlet pipe and sewage pump, electric contact point pressure gauge, first pneumatic operated valve mounted thereto; Described recoil water inlet pipeline assembly comprises recoil water water inlet pipe and recoil water pump, second pneumatic operated valve mounted thereto; Described compressed air line assembly comprises compressed air hose and the 3rd pneumatic operated valve mounted thereto; Described blowoff line assembly comprises blow-off pipe and the 4th pneumatic operated valve mounted thereto; Described rapid filter is independent closed tank, horizontal fixed has and equates with the tank body cross section and with tank bottom the filter that has aperture of spacing distance is arranged in the tank body, be evenly distributed with fiber filter material on the described filter, tank body has the one-level sewage inlet, the bottom has the one-level sewage outlet, the tank deck external vertical is provided with cylinder, and the plunger of this cylinder stretches in the tank body, and its end is fixed with the pressing plate that has aperture that equates with cross section in the tank body; One-level sewage inlet and sewage water inlet pipe, the blow-off pipe of described rapid filter are connected; The water inlet of the one-level sewage outlet of described rapid filter and recoil water water inlet pipe, compressed air hose, oil water separator is connected, wherein and also be provided with the 5th pneumatic operated valve on the pipeline between the water inlet of oil water separator; Described programmable logic controller (PLC) PLC respectively with electro connecting pressure gauge, first, second, third and fourth, control circuit and described sewage pump, the recoil water pump control circuit of five pneumatic operated valves be electrically connected.
The tank body top of described rapid filter also is provided with exhaust outlet.
Y-type filter, check-valves and flowmeter also are installed on the described sewage water inlet pipe.
Also be provided with Pressure gauge on the pipeline between the one-level sewage outlet of described rapid filter and the water inlet of oil water separator.
Between the pipeline of the one-level sewage outlet of described rapid filter and compressed air hose, recoil water water inlet pipe check-valves is installed also, is used for anti-sealing and enters compressed air piping.
Tube connector between the delivery port of described oil water separator, two cavitys and recoil water water inlet pipe are connected with pipeline respectively, and ball valve all is installed on the pipeline between them.
On the outlet conduit after the delivery port of described oil water separator ball valve and check-valves are installed.
The catchment cup at first, second of described oil water separator two cavity tops all is equipped with oil-drain pipe and is used for oil extraction, on this oil-drain pipe ball valve is installed.
The sewage draining exit of described oil water separator two cavity bottoms all is connected with the pipeline blowdown that is connected with blow-off pipe, on the pipeline between them ball valve is installed.
Compared with prior art, the utlity model has following beneficial effect:
1, the scope of application is extensive; The utility model has adopted rapid filter to add the structure of two-stage oil water separator, various industrial oil-polluted waters are by the suspension in the basic filtering sewage of rapid filter, by the two-stage oil water separator sewage is carried out water-oil separating again, finish processing the oil-containing trade effluent.Can be in sector applications such as iron and steel production, machine-building and processing, metal smelt, weaving, petrochemical industry, electric power and shipbuildings, Steam Recovery condensed water, oil field reinjection water, offshore oil platform output water such as oil plant and petrochemical plant, power ship waste water, cathode copper waste water, machinery clean waste water, chemical rinsing waste water, oil gas washes, Treatment of Metal Surface waste water, natural gas processing expansion cooling water, ultrasonic wave cleaning waste water, pure water preparation preliminary treatment or the like, therefore, scope applicatory is very extensive.
2, processing accuracy height, effective; The utility model processing accuracy water outlet oil-containing can be 5mg/l or lower; The filtering accuracy that goes out aqueous suspension reaches≤10mg/l.
3, can automatic backwash; The utility model has been set up the PLC control system, can determine whether needs clean rapid filter according to the state of sewage inlet gage, and when the sewage influent pressure changes the needs cleaning, PLC will automatically control rapid filter and carry out backwash;
4, whole device does not need special backwashing system, and floor space is little.
Description of drawings
Fig. 1 is the online structural principle single line schematic diagram from the backpulsing oily-water seperating equipment of the utility model;
Fig. 2 is that the master of described online rapid filter from the backpulsing oily-water seperating equipment looks cross-sectional schematic;
Fig. 3 is that the master of prior art oil water separator looks cross-sectional schematic.
The specific embodiment is described in further detail below in conjunction with the preferred embodiment shown in the accompanying drawing.
The utility model is online from the backpulsing oily-water seperating equipment, as shown in Figure 1, comprise rapid filter 1, oil water separator 2, sewage water inlet pipe road assembly 3, recoil water inlet pipeline assembly 4, compressed air line assembly 5, blowoff line assembly 6 and programmable logic controller (PLC) PLC 7.
As shown in Figure 2, rapid filter 1 is independent closed tank 11, horizontal fixed has and equates with the tank body cross section and with tank bottom the filter that has aperture 12 of spacing distance is arranged in the tank body, be evenly distributed with fiber filter material on the filter 12, tank body 11 tops have one-level sewage inlet 13, the bottom has one-level sewage outlet 14, the tank deck external vertical is provided with cylinder 15, the plunger of this cylinder 15 stretches in the tank body 11, and its end is fixed with the pressing plate that has aperture 16 that equates with cross section in the tank body 11.After oil-polluted water enters tank body 11 from one-level sewage inlet 13, plunger in the cylinder 15 promotes pressing plate 16 and moves downward, the fiber filter material that distributes on the filter 12 is tightly pushed down, and the sewage that enters tank body 11 then filters the back from one-level sewage outlet 14 outflow tank bodies 11 fiber filter material between filter 12 and pressing plate 16.Tank body 11 tops also are provided with exhaust outlet 17.
As shown in Figure 1, oil water separator 2 comprises two first and second two cavitys 21,22 that independently are communicated with by pipeline, and each cavity top is equipped with catchment cup 23, and catchment cup 23 is connected to the oil-drain pipe that ball valve is installed and is used for oil extraction.Have water inlet 24 and delivery port 25 on first cavity 21 and second cavity 22, the water that delivery port 25 will be connected to after the pipeline that ball valve and check-valves are installed will filter is discharged, and these two cavitys, 21,22 bottoms all have sewage draining exit 29.
Sewage water inlet pipe road assembly 3 comprises sewage water inlet pipe 31 and sewage pump 32, electric contact point pressure gauge 33, first pneumatic operated valve 34, y-type filter, check-valves and flowmeter mounted thereto.Recoil water inlet pipeline assembly 4 comprises recoil water water inlet pipe 41 and recoil water pump 42, second pneumatic operated valve 43 mounted thereto.Compressed air line assembly 5 comprises compressed air hose 51 and the 3rd pneumatic operated valve 52 mounted thereto; Blowoff line assembly 6 comprises blow-off pipe 61 and the 4th pneumatic operated valve 62 mounted thereto.
The one-level sewage inlet 13 of rapid filter 1 and sewage water inlet pipe 31, blow-off pipe 61 are connected; The sewage draining exit 29 of two cavity bottoms of oil water separator 2 also is connected with blow-off pipe 61, on the pipeline between them ball valve is installed; The delivery port 25 of oil water separator 2, the tube connector between two cavitys and recoil water water inlet pipe 41 are connected with pipeline respectively, and ball valve all is installed on the pipeline between them.The water inlet 24 of the one-level sewage outlet 14 of rapid filter 1 and recoil water water inlet pipe 41, compressed air hose 51, oil water separator 2 is connected, wherein and also be provided with the 5th pneumatic operated valve 26 and Pressure gauge 27 on the pipeline between the water inlet 24 of oil water separator 2; Between the pipeline of the one-level sewage outlet 14 of rapid filter 1 and compressed air hose 51, recoil water water inlet pipe 41 check-valves is installed also, is used for anti-sealing and enters compressed air piping 51.Programmable logic controller (PLC) PLC 7 respectively with electro connecting pressure gauge 33, first, second, third and fourth, the control circuit of the control circuit of five pneumatic operated valves 34,43,52,62,26 and described sewage pump 32, recoil water pump 42 is electrically connected.
The utility model normal workflow is as follows: oil-polluted water is pumped into sewage water inlet pipe 31 by sewage pump 32, first pneumatic operated valve 34 is in normally open, be in normally off with 62 of the 4th pneumatic operated valves on the blow-off pipe 61 that the one-level sewage inlet 13 of rapid filter 1 is connected, oil-polluted water enters in the tank body 11 of rapid filter 1, carries out prime through the fiber filter material between pressing plate 16 and the filter 12 and filters the suspension of removing in the sewage fast.Second pneumatic operated valve 43 on the recoil water water inlet pipe 41 and the 3rd pneumatic operated valve 52 on the compressed air hose 51 are in normally off.The 5th pneumatic operated valve 26 between the one-level sewage outlet 14 of rapid filter 1 and the water inlet 24 of oil water separator 2 on the pipeline is in normally open, enter in oil water separator 2 cavitys through the water inlet 24 of rapid filter 1 filtered sewage by oil water separator 2 and to carry out water-oil separating, the end-of-the-pipe 29 of two cavity bottoms of oil water separator 2 all is connected with blow-off pipe 61, ball valve is installed on the pipeline between them and is in normally off; The catchment cup 23 that oil water separator 2 tops are provided with all is connected with oil-drain pipe and ball valve is installed thereon, and this ball valve is in normally off.The delivery port 25 of oil water separator 2 is connected with the water purification discharge line after the filtration, the ball valve and the check-valves that are in normally open are installed on this pipeline, so that it is oil water separator 2 carries out making after the water-oil separating water purification to discharge quick filtered sewage, oily then be pooled to back in the catchment cup 23 and determine whether discharge according to the capacity of oil.The delivery port 25 of oil water separator 2, the tube connector between two cavitys 21,22 are connected with recoil water water inlet pipe 41 usefulness pipelines, ball valve all is installed on two connecting pipes and is in normally off.
The utility model backwash workflow: rapid filter 1 and oil water separator 2 in the present embodiment is because filtration characteristics separately and implement different backwash modes respectively.
Rapid filter has adopted a kind of fiber filtering of hydrophilic oleophobic as filtering material, be characterized under certain current filtering velocity, containing oil suspensions and part oil can be trapped by the filtering material surface, and under higher water velocity, contain oil suspensions and part oil can break away from material surface again, designed the workflow of present embodiment rapid filter 1 automatic backwash according to the characteristics of fiber filter material.Its operation principle is, when the material of holding back when filtrate increased, the flow that rapid filter filters can reduce, as shown in Figure 1, the pressure that is positioned at the electro connecting pressure gauge 33 on the sewage water inlet pipe 31 can increase, and at this moment PLC 7 implements the control step according to the feedback signal of electric contact point pressure gauge 33:
1, sewage pump 32 is shut down;
2, the plunger in the cylinder 15 drives pressing plate 16 returns;
3, the 5th pneumatic operated valve 26 cuts out;
4, first pneumatic operated valve 34 cuts out;
5, the 4th pneumatic operated valve 62 is opened;
6, open the 3rd pneumatic operated valve 52, at this moment, compressed air enters the fiber filter material that rapid filter 1 is opposite on the filter 12 by compressed air hose 51 from one-level sewage outlet 14 and washes, and the dirt after the flushing enters blow-off pipe 61 from one-level sewage inlet 13 and discharges; The time of opening of the 3rd pneumatic operated valve 52 can be adjusted as required, closes the 3rd pneumatic operated valve 52 after the end; This step is a gas flushing;
7, open second pneumatic operated valve 43; At this moment, the water purification water pump 42 that recoiled is pumped into the fiber filter material that rapid filter 1 is opposite on the filter 12 from recoil water water inlet pipe 41 and washes, the same with backwash process in the step 6, but this step is to adopt water purification that fiber filtering is washed, equally, the time of opening of second pneumatic operated valve 43 is adjustable, closes after the backwash;
8, step 6 and step 7 can repeat (by PLC control) as required;
9, the 4th pneumatic operated valve 62 cuts out;
10, the 5th pneumatic operated valve 26 is opened;
11, cylinder 15 action drive pressing plates 16 press down and put in place;
12, open first pneumatic operated valve 34 and start sewage pump 32, change normal operating conditions over to.
Oil water separator 2 is owing to the suspension in the oil-polluted water that has rapid filter 1 will need to handle as the prime filter filters out, and the sewage that enters oil water separator 2 has been oil water mixture basically.Therefore, the filter core in the oil water separator 2 can not need automatic backwash as rapid filter 1, but carries out backwash by hand after can be when using long one section, and its backwash step is as follows:
1, closes sewage pump 32;
2, the 5th pneumatic operated valve 26 cuts out;
3, the ball valve on the outlet conduit behind the delivery port 25 of oil water separator 2 is closed;
4, the sewage draining exit 29 of two cavitys, 21,22 bottoms of oil water separator 2 is opened with the ball valve on blow-off pipe 61 connecting pipes;
5, the ball valve on the pipeline of delivery port 25 and 41 connections of recoil water water inlet pipe is opened;
6, the ball valve on the pipeline that connects between tube connector between two cavitys 21,22 and the recoil water water inlet pipe 41 is opened;
7, start recoil water pump 42 and clarified water pump is sent in two cavitys 21,22 of oil water separator 2 and carried out backwash, the sewage after the backwash enters blow-off pipe 61 from sewage draining exit 29;
8, determine water pump 42 shutdown that recoils behind the backwashing time as required, close the ball valve in the step 4,5,6 more successively;
9, open ball valve on the outlet conduit behind the delivery port 25 of oil water separator 2;
10, open the 5th pneumatic operated valve 26, start sewage pump 32 and change normal operating conditions over to.
More than device can be fixedly mounted on the tank body of rapid filter 1, cavity, sewage pump 32, recoil water pump 42 and the pipeline assembly thereof of oil water separator 2 on the moveable platform according to the needs of using, be equipped with again the auxiliary equipment such as electric control box of PLC 7 in being placed in can be realized mobile utilization of the present utility model, make it can apply to each industrial production field more widely.
In sum, adopt and of the present utility modelly onlinely can be useful in the processing of oil-polluted water in the various industrial production field from the backpulsing oily-water seperating equipment.

Claims (9)

  1. One kind online from the backpulsing oily-water seperating equipment, comprise rapid filter (1) and oil water separator (2), described oil water separator (2) comprises two independently by first of pipeline connection, two liang of cavitys (21,22), each cavity top is equipped with catchment cup (23), described first, two liang of cavitys (21,22) be provided with the surface in and twine the filter core of tiing up the water-oil separating medium of making through the acrylic fiber of surface modification and pressure modifier treatment, have water inlet (24) and delivery port (25) on described first cavity (21) and second cavity (22), the water that delivery port (25) will be connected with after pipeline will filter is discharged this two cavity (21,22) bottom all has sewage draining exit (29); It is characterized in that:
    Also comprise sewage water inlet pipe road assembly (3), recoil water inlet pipeline assembly (4), compressed air line assembly (5), blowoff line assembly (6) and programmable logic controller (PLC) PLC (7); Described sewage water inlet pipe road assembly (3) comprises sewage water inlet pipe (31) and sewage pump (32), electric contact point pressure gauge (33), first pneumatic operated valve (34) mounted thereto; Described recoil water inlet pipeline assembly (4) comprises recoil water water inlet pipe (41) and recoil water pump (42), second pneumatic operated valve (43) mounted thereto; Described compressed air line assembly (5) comprises compressed air hose (51) and the 3rd pneumatic operated valve (52) mounted thereto; Described blowoff line assembly (6) comprises blow-off pipe (61) and the 4th pneumatic operated valve (62) mounted thereto; Described rapid filter (1) is independent closed tank (11), horizontal fixed has and equates with the tank body cross section and with tank bottom the filter that has aperture (12) of spacing distance is arranged in the tank body, described filter is evenly distributed with fiber filter material on (12), tank body (11) has one-level sewage inlet (13), the bottom has one-level sewage outlet (14), the tank deck external vertical is provided with cylinder (15), the plunger of this cylinder (15) stretches in the tank body (11), and its end is fixed with the pressing plate that has aperture (16) that equates with the interior cross section of tank body (11); The one-level sewage inlet (13) of described rapid filter (1) and sewage water inlet pipe (31), blow-off pipe (61) are connected; The water inlet (24) of the one-level sewage outlet (14) of described rapid filter (1) and recoil water water inlet pipe (41), compressed air hose (51), oil water separator (2) is connected, and wherein and on the pipeline between the water inlet (24) of oil water separator (2) also is provided with the 5th pneumatic operated valve (26); Described programmable logic controller (PLC) PLC (7) respectively with electro connecting pressure gauge (33), first, second, third and fourth, the control circuit of the control circuit of five pneumatic operated valves (34,43,52,62,26) and described sewage pump (32), recoil water pump (42) is electrically connected.
  2. 2. according to claim 1 online from the back flush type oily-water seperating equipment, it is characterized in that: tank body (11) top of described rapid filter (1) also is provided with exhaust outlet (17).
  3. 3. according to claim 1 online from the back flush type oily-water seperating equipment, it is characterized in that: described sewage water inlet pipe also is equipped with y-type filter, check-valves and flowmeter on (31).
  4. 4. according to claim 1 online from the back flush type oily-water seperating equipment, it is characterized in that: also be provided with Pressure gauge (27) on the pipeline between the one-level sewage outlet (14) of described rapid filter (1) and the water inlet (24) of oil water separator (2).
  5. 5. according to claim 1 online from the back flush type oily-water seperating equipment, it is characterized in that: between the pipeline of the one-level sewage outlet (14) of described rapid filter (1) and compressed air hose (51), recoil water water inlet pipe (41) check-valves is installed also, is used for anti-sealing and enters compressed air piping (51).
  6. 6. according to claim 1 online from the back flush type oily-water seperating equipment, it is characterized in that: tube connector between the delivery port (25) of described oil water separator (2), two cavitys (21,22) and recoil water water inlet pipe (41) are connected with pipeline respectively, and ball valve all is installed on the pipeline between them.
  7. 7. according to claim 1 online from the back flush type oily-water seperating equipment, it is characterized in that: on delivery port (25) outlet conduit afterwards of described oil water separator (2) ball valve and check-valves are installed.
  8. 8. according to claim 1 online from the back flush type oily-water seperating equipment, it is characterized in that: the catchment cup (23) at first, second two cavity (21,22) top of described oil water separator (2) all is equipped with oil-drain pipe and is used for oil extraction, on this oil-drain pipe ball valve is installed.
  9. 9. according to claim 1 online from the back flush type oily-water seperating equipment, it is characterized in that: the sewage draining exit (29) of described oil water separator (2) two cavitys (21,22) bottoms all is connected with the pipeline blowdown that is connected with blow-off pipe (61), on the pipeline between them ball valve is installed.
CN2009202042747U 2009-08-25 2009-08-25 On-line automatic backwash oil-water separation device Expired - Lifetime CN201470154U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102423570A (en) * 2011-09-02 2012-04-25 苏州永添设备有限公司 Modular constant-temperature multi-filter cylinder oil mist purifying and deslagging filtration system
CN108786185A (en) * 2018-06-13 2018-11-13 中国海洋石油集团有限公司 A kind of hydrocyclone automatic back-washing device and method of high suspended matter oily wastewater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102423570A (en) * 2011-09-02 2012-04-25 苏州永添设备有限公司 Modular constant-temperature multi-filter cylinder oil mist purifying and deslagging filtration system
CN108786185A (en) * 2018-06-13 2018-11-13 中国海洋石油集团有限公司 A kind of hydrocyclone automatic back-washing device and method of high suspended matter oily wastewater

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