CN206454322U - A kind of oil field produced water filter - Google Patents
A kind of oil field produced water filter Download PDFInfo
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- CN206454322U CN206454322U CN201621461674.2U CN201621461674U CN206454322U CN 206454322 U CN206454322 U CN 206454322U CN 201621461674 U CN201621461674 U CN 201621461674U CN 206454322 U CN206454322 U CN 206454322U
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- screen drum
- electric heater
- supporting plate
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Abstract
The utility model discloses a kind of oil field produced water filter, belong to oil field produced water treatment field.The filter includes：The supporting plate of through hole is carried positioned at the filter housing inside center, the first screen drum and the second screen drum in the supporting plate have first annular space, have the second annular space between the second screen drum and filter housing between the first screen drum and the second screen drum；It is filled in the filtrate in first annular space；It is arranged on the electric heater between supporting plate and the bottom of filter housing；The gap for enabling flow through is provided with the top sealing of first screen drum and the second screen drum, side wall.The smooth discharge filter such as sump oil, impurity can be prevented rupture, the deformation of filter screen drum by the utility model when being backwashed to filter.
Description
Technical field
The utility model is related to oil field produced water treatment field, more particularly to a kind of oil field produced water filter.
Background technology
Oil field extracted water is after processing, it will usually be recycled into again by water injection well in stratum, wherein oil field extracted water
Filter is the key equipment of oil field produced water process, filter can normally run be related to reinjected water water quality can it is up to standard,
It is qualified.
At present, oil field produced water filter is mainly included with filter with discourager, lower discourager in the circle of diameter
And the filtrate being filled between discourager, wherein, upper discourager and lower discourager can be the forms such as sieve plate, screen casing.To oil field
When recovered water is handled, when sewage passes through filter, sump oil and impurity etc. are intercepted by filtrate, and are stayed in filtrate, filter it
Water afterwards is filtered out through filtrate, realizes the filtering to sump oil in sewage and impurity, because sump oil and impurity etc. stay in meeting shadow in filtrate
Sewage water filtration effect is rung, it is necessary to periodically will build up the discharges, wherein oil extraction-generated waste water such as sump oil, the impurity in filtrate by backwash
Or backwashing water flows through the direction of filter to be consistent with the axial direction of filter.
During the utility model is realized, designer has found that prior art at least has problems with：
To High viscosity crude oil field by using oil field produced water filter, when carrying out the processing of oil field extracted water, because high
The solidifying viscous crude content of wax, higher containing colloid, freezing point is higher, the sump oil that is filtered out during backwash and mixes the impurity of sump oil and passes through and stop
Resistance is larger during part, under hydraulic pressure effect, and upper discourager is easily crushed out of shape, breakage, causes filterins media run-off, crosses leak-off
Effect.
Utility model content
In order to solve the above mentioned problem of prior art, the utility model embodiment provides a kind of oil field produced water filtration
Device, the technical scheme is as follows：
The utility model embodiment provides a kind of oil field produced water filter, including filter housing and sets respectively
Wastewater inlet and filtering water outlet in the filter housing top and bottom, the filter also include：
Supporting plate inside the filter housing, the supporting plate center carries through hole, the side of the supporting plate
Edge is contacted with the inwall of the filter housing；
Be arranged in the supporting plate, the hollow circle that internal diameter is equal with the diameter of the through hole and coaxial with the through hole
First screen drum of cylinder shape；
Second screen drum of the hollow circuit cylinder bodily form for being arranged in the supporting plate and being set in outside first screen drum,
Between first screen drum and second screen drum have first annular space, second screen drum and the filter housing it
Between have the second annular space；
It is filled in the filtrate in the first annular space；
And, it is arranged on the electric heater between the bottom of the supporting plate and the filter housing；
The top sealing of first screen drum and second screen drum, bottom are opened, and are provided with the wall of side for making
The gap that fluid passes through.
Specifically, first screen drum and the second screen drum and the filter housing are coaxial.
Specifically, the top of first screen drum and the second screen drum is fixed by channel-section steel.
Specifically, the electric heater is explosion-proof electric heating device.
Preferably, the quantity of the electric heater is more than 2, and is uniformly distributed in the filter.
Specifically, the profile of the electric heater is tubulose.
Specifically, the length direction of the electric heater is parallel with the supporting plate, and it originates in the filter housing, and
Extend to the axis direction of the filter.
Specifically, the length of the electric heater is less than the radius of filter.
The beneficial effect brought of technical scheme that the utility model embodiment is provided is：
By the way that conventional sieve plate is changed into screen drum, change path of the fluid by filter, footpath is changed to by flowing axially through
To flowing through so that its filter area is more than the filter area of conventional filters sieve plate, current by when resistance it is smaller, prevent screen drum
Being ruptured or deforming greatly by resistance during due to backwash；And set between the supporting plate and filter housing of filter
Electric heater is put, is first heated the sewage in filter before backwash so that the sump oil of filter interior flows after warming
Dynamic property improves, and is backwashed again after heating, can be by the smooth discharge filter such as sump oil, impurity.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the oil field extracted water filter structure schematic representation that the utility model embodiment is provided；
Fig. 2 is the A-A cross-sectional views of oil field produced water filter in Fig. 1 that the utility model embodiment is provided；
Fig. 3 is the B-B cross-sectional views of oil field produced water filter in Fig. 1 that the utility model embodiment is provided；
Fig. 4 is the arrangement that multiple electric heaters that the utility model embodiment is provided are arranged in axial symmetry mode in the filter
Distribution map；
Fig. 5 is the arrangement point that multiple electric heaters that the utility model embodiment is provided are arranged in parallel in the filter
Butut；
Fig. 6 is a snail shape electric heater equally distributed knot in the filter that the utility model embodiment is provided
Structure schematic diagram.
Wherein, reference is：
1st, channel-section steel；2nd, supporting plate；3rd, filter housing；4th, electric heater；X, filtrate；5th, the second screen drum；6th, wastewater inlet；7、
Filtering water outlet；8th, filtrate import；9th, filtrate is exported；10th, the first screen drum；11st, first annular space；12nd, the second annular space.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of oil field produced water filter, as shown in figure 1, it includes filter housing
3 and the wastewater inlet 6 and filtering water outlet 7 of the top and bottom of the filter housing 3 are separately positioned on, the filter is also
Including：
Supporting plate 2 inside the filter housing 3, the center of supporting plate 2 carries through hole, the supporting plate 2
Edge contacted with the inwall of the filter housing 3；
Be arranged in the supporting plate 2, the hollow circle that internal diameter is equal with the diameter of the through hole and coaxial with the through hole
First screen drum 10 of cylinder shape；
Second sieve of the hollow circuit cylinder bodily form for being arranged in the supporting plate 2 and being set in outside first screen drum 10
Cylinder 5, has first annular space 11, second screen drum 5 and the mistake between first screen drum 10 and second screen drum 5
There is the second annular space 12 between filter shell 3；
It is filled in the filtrate X in the first annular space 11；
And, it is arranged on the electric heater 4 between the supporting plate 2 and the bottom of the filter housing 3；
The top sealing of first screen drum 10 and second screen drum 5, bottom are opened, and being provided with the wall of side is used for
The gap enabled flow through.
The operation principle of filter that the utility model embodiment is provided is：Oil extraction-generated waste water passes through the top of filter housing 3
Wastewater inlet 6 enter filter, into the second annular space 12 between the second screen drum 5 and filter housing 3, by second
Gap on the side wall of screen drum 5 and the first annular space 11 entered between the second screen drum 5 and the first screen drum 10, due to first annular
Impurity being filled with space 11 in filtrate X, oil extraction-generated waste water etc. is intercepted in filtrate X, and the filter water after filtering is through filtering
Expect from the gap on the side wall of the first screen drum 10 to enter inside the first screen drum 10 after X, the through hole stream from the center of supporting plate 2
Go out, finally by the discharge filter of filtering water outlet 7 of the bottom of filter housing 3, oil extraction-generated waste water is filtered in filter
When, path of the oil extraction-generated waste water through filter material is the radial direction along filter, and it flows through order to sequentially pass through the second annular
Space 12, the side wall of the second screen drum 5, filtrate X, the side wall of the first screen drum 10, it is such to flow through mode so that what the utility model was provided
Filter filter area is more than the filter area of conventional filters sieve plate, current by when resistance it is smaller, and the side wall of screen drum 5
It is parallel with gravity direction, do not influenceed by water Action of Gravity Field so that such structure prevent its rupture in filter process or
Person deforms.
It will be appreciated by persons skilled in the art that being filtered using filter as shown in Figure 1 to oil extraction-generated waste water
When, oil extraction-generated waste water enters from the wastewater inlet 6 on filter top, and the second annular space 12, the second screen drum 5 are then passed through in order
Side wall, filtrate X, the side wall of the first screen drum 10, the through hole at the center of supporting plate 2, finally filter after water from the mistake of filter bottom
Filtered water outlet 7 is exported, and refers to water from the filtering of filter bottom filter progress backwash described in the utility model
Water out 7 enters, and then passes through the through hole at the center of supporting plate 2, the side wall of the first screen drum 10, filtrate X, the side wall of the second screen drum 5, second
Annular space 12, is finally discharged from the wastewater inlet 6 on the top of filter.That is when being backwashed to filter,
Because the mode that flows through of backwashing water is also radial direction, its overflow section is more than the overflow section of conventional filters sieve plate, current
By when resistance it is smaller, pressure when preventing it due to backwash and rupture or deform.
It should be noted that the top sealing of the screen drum 5 of the first screen drum 10 and second, oil extraction-generated waste water is from from filter
The wastewater inlet 6 on top can not enter filtrate X after entering by the top of the first screen drum 10 and the second screen drum 5, and can only
Enter filtrate X into the second annular space 12, then from the gap on the side wall of the second screen drum 5.Referring to Fig. 3, due to the support
The center of plate 2 carries through hole, and the edge of the supporting plate 2 contacts with the inwall of the filter housing 3, the diameter of the through hole and
The internal diameter of first screen drum 10 is equal, that is to say, that the circular steel plate of manhole, the circular steel are carried centered on supporting plate 2
The outer wall of plate can be welded on the inwall of filter housing 3, and the first screen drum 10 and the bottom of the second screen drum 5 are opened, but due to
Supporting plate 2 blocks the bottom of first annular space 11 between the first screen drum 10 and the second screen drum 5, while the second annular is empty
Between 12 bottoms block, backwashing water can not enter filtrate X from the first annular bottom of space 11, and can only be from the center of supporting plate 2
Through hole is flowed into, then by the gap on the side wall of the first screen drum 10 into filtrate X.Similarly, oil extraction-generated waste water is through filter material X mistakes
, also can only be by the gap outflow on the side wall of the first screen drum 10 after filter.
As shown in Fig. 2 the cross section between at the top of the first screen drum 10 and the top of the second screen drum 5 and filter housing 3
The top that figure can be seen that the screen drum 5 of the first screen drum 10 and second is fixed by channel-section steel, specifically can be using two grooves
Steel, is welded on the top of the first screen drum 10 and the second screen drum 5 in the form of right-angled intersection, meanwhile, the two ends of channel-section steel are and mistake
The inwall welding of filter shell；Can also use by the channel-section steel of more than two, be otherwise welded on the first screen drum 10 and
The top of second screen drum 5.
Referring to Fig. 1, in embodiment described above, the screen drum 5 of the first screen drum 10 and second and the filter
Shell 3 is coaxial, and the screen drum 5 of the first screen drum 10 and second is hollow circular cylinder, and its external diameter, length should be according in actual conditions
The factors such as specific filter process amount, water quality index are determined.Because the top of the first screen drum 10 and the second screen drum 5 is close
Filtrate, can be pumped into screen drum 5, it is necessary to when taking out filtrate by envelope by filtrate import 8, can also by filtrate outlet 9 by its
Filter is pumped out, the normally solid particulate matters of filtrate X, such as walnut shell or quartz sand.
The utility model embodiment does not make specific restriction to the gap on the first screen drum 10 and the side wall of the second screen drum 5,
Its purpose is to form the passage that mobile phase can pass through, but need to meet to reach the sewage throughput of design and stop filtrate
It is lost in.The utility model embodiment does not make specific restriction to the gap of the first screen drum 10 and the second screen drum 5, and it can be bar
Shape gap, can be the gap in the diversified forms such as grid, orifice plate with gauze.
Due to the High viscosity crude content of wax, higher containing colloid, its freezing point is higher, typically about 30~40 DEG C, described here
Colloid refers to a class viscous liquid or semisolid macromolecular substances in crude oil.On the basis of embodiment described above, it is
More preferable realization prevents the first screen drum 10 and the second screen drum 5 to be subject to crushing or deform, and the utility model embodiment is in oil field
Electric heater 4 is set between the supporting plate 2 and filter housing 3 that produce water filter, when carrying out backwash operation, electric heating is opened
Sewage in the power supply of device 4, hot filtration apparatus so that the sewage temperature in filter is tried one's best more than the freezing point of High viscosity crude,
Backwashed again afterwards, the higher sewage of temperature causes crude oil, wax and colloid mobility in filtrate to improve, easily and filtrate
Separation, can smooth discharge filter.The water of backwash described above, can be clear water, the oil extraction-generated waste water after filtering
Deng, because room temperature clear water temperature is relatively low, this area frequently with by filtering after, meet the oil extraction-generated waste water of professional standard to enter
Row Filter Back Washing, such as meet the oil recovery dirt of the injection water quality standard in professional standard SY/T5329-2012 after filtering
Water.
In embodiment described above, due to there is enough backwash rates when being backwashed to filter,
Electric heater 4 is arranged between supporting plate 2 and filter housing 3 in the utility model, first can be through when the water of backwash is passed through
Electric heater 4 is crossed, as a kind of preferred scheme, the electric heater 4 is explosion-proof electric heating device, it is had in filter in the environment of oil gas
It can use safely.
In the utility model embodiment, the quantity of electric heater 4 does not have strict restriction, can there was only 2, it is possibility to have 2
More than individual, such as can be 4,6,8.When the quantity of electric heater 4 is more than 2, preferably electric heater is uniformly divided
It is distributed in filter.
In the utility model embodiment, the concrete form of electric heater 4 can be tubulose, and the length direction of electric heater 4
Parallel with the lower discourager 2, during heating, the sewage in filter is heated evenly.When the quantity of electric heater 4 is more than 2
When, the utility model embodiment does not make any tool to arrangement mode of the electric heater 4 between supporting plate 2 and filter housing 3
Body is limited, and the passage that medium can be allowed to pass through can be formed between multiple electric heaters 4.For example, electric heater 4 can be to be parallel to each other
Mode arrange or along filter axial symmetry arrange etc..Preferably, the arrangement of electric heater 4 should cause described
Electric heater 4 is uniformly distributed in the filter.
Referring to Fig. 4, Fig. 4 is that multiple electric heaters that the utility model embodiment is provided are arranged in axial symmetry mode in the filter
The arranged distribution figure of row, as a kind of alternative of the utility model embodiment, every electric heater 4 originates in filter housing
3, and extend to the axis direction of filter, but the length of electric heater 4 is less than the radius of filter, that is, refer to electric heater 4
Between without overlapping or intersecting, electric heater 4 is uniformly distributed in filter, is distributed along the axisymmetrical of filter.This reality
With in new embodiment so that filter is the cylindrical tank placed vertically as an example come for example, the cross section of filter is round
Shape, then the length of every electric heater 4 is roughly equal, but the arrangement mode of electric heater 4 of this alternative be also applied for it is transversal
Face is the filter of remaining shape, and the filter for example having is the cylindrical tank placed sidewards, then its cross section is ellipse.
The arrangement mode of electric heater 4 can also be the mode shown in Fig. 5, and Fig. 5 is many of the utility model embodiment offer
The arranged distribution figure that individual electric heater is arranged in parallel in the filter, every electric heater 4 originates in the one of filter housing 3
End, ends at parallel to each other between the other end of filter housing, every electric heater 4, is uniformly distributed in filter, every electricity
The distance between hot device 4 is consistent.Arrange in such a manner, the length of every electric heater 4 is different, make its complement filter device
The profile of shell 3.
Multiple electric heaters described above refer to shape of the electric heater 4 for a straight tube, do not bend, art technology
Personnel are it is understood that when electric heater 4 is the shape of straight tube, just have multiple electric heaters 4 according to different arrangements
Mode is uniformly distributed in filter, for causing the sewage in filter to be heated evenly.And be remaining shape in electric heater 4
When, the sewage that can also be realized by the change of its shape in filter is heated evenly, the mode such as passing through bending, surround
Obtained electric heater, as shown in fig. 6, the snail shape electric heater that Fig. 6, which is the utility model embodiment, to be provided is in filtering
Equally distributed structural representation in device, the quantity of electric heater 4 can also be only one, and it is the helical form in a plane,
By the way that electrothermal tube one longer is bent, electrothermal tube is bent in the way of drawing a circle along the end points since one end of electrothermal tube,
And the distance between electrothermal tube that holding is often enclosed is consistent, the electrothermal tube that outermost one is enclosed is engaged with the diameter of filter, this
The spiral helicine electric heater of sample, because spacing is uniform between the Guan Yuguan of every heating tube, is evenly distributed, so as to allow in filter
Sewage can be uniformly heated.
In embodiment described above, the number of the electric heater 4, the power of electric heater 4 and electric heater 4 make
All there is relation with the treating capacity and crude oil property of filter with the heat time, the treating capacity of filter namely refers to the logical of sewage
Excessive, according to the filter of different disposal amount and different crude oil properties, the number of electric heater 4, power then should be with really
Border situation is adjusted, and the use heat time of electric heater 4 is also different, as a kind of preferred scheme, utilizes electric heater 4
Sewage in filter is improved to more than 60 DEG C, this neighborhood technique personnel it is understood that described here will be dirty in filter
Up to more than 60 DEG C of water extraction, is that the physical property of based on crude is determined, temperature is adjusted according to actual conditions, for example, it is also possible to
It it is more than 70 DEG C, its purpose is to crude oil, wax and colloid mobility in filtrate is improved.
Based on described above, a kind of method purified to above-mentioned filter of the utility model embodiment offer, tool
Body includes：By the power supply opening of electric heater 4, sewage in filter is heated, the water after heating is reused and filter is entered
Row backwash.
Actual application is carried out to the utility model embodiment below：
It is 70m for oil recovery treatment amount3/ h filter, sets the screen drum 5 that external diameter is 2.5 meters in the filter,
Width is uniformly distributed on screen drum 5 for 0.2~0.3mm gaps.6 30KW's of setting is anti-between supporting plate 2 and filter housing 3
Quick-fried electric heater 4, the electric heater 4 is straight tube-like, and the arrangement mode of 6 electric heaters 4 is to originate in filter housing 3, and to mistake
The axis direction extension of filter, and the near axis of filter is terminated at, it is uniformly distributed in filter, two neighboring electric heating
Angle between device 4 is 30 °, it can be seen that without overlapping or intersecting between electric heater 4, be liquid by providing passage, and
And the sewage in filter is heated evenly.When carrying out backwash purification to filter, by the power supply opening of electric heater, entirely
Power is heated about 1 hour, sewage temperature in filter can be improved to 70 DEG C from 50 DEG C, be reused and filter it by this filter
Oil extraction-generated waste water afterwards is backwashed to filter, and backwashing water is finally discharged into useless by sump oil, the smooth discharge filter of impurity
Pond.
The beneficial effect brought of technical scheme that the utility model embodiment is provided is：
By the way that conventional sieve plate is changed into screen drum, change path of the fluid by filter, footpath is changed to by flowing axially through
To flowing through so that its filter area is more than the filter area of conventional filters sieve plate, current by when resistance it is smaller, prevent screen drum
Ruptured or deform greatly by resistance during due to backwash；And set between the supporting plate and filter housing of filter
Electric heater, first heats the sewage in filter before backwash so that the sump oil of filter interior flows after warming
Property improve, backwashed again after heating, can by sump oil, impurity etc. smoothly discharge filter.
Above-mentioned all optional technical schemes, can form the alternative embodiment of the disclosure, herein no longer using any combination
Repeat one by one.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (8)
1. a kind of oil field produced water filter, including filter housing (3) and it is separately positioned on the filter housing (3) top
The wastewater inlet (6) and filtering water outlet (7) of portion and bottom, it is characterised in that the filter also includes：
Positioned at the internal supporting plate (2) of the filter housing (3), supporting plate (2) center carries through hole, the supporting plate
(2) edge is contacted with the inwall of the filter housing (3)；
Be arranged in the supporting plate (2), the hollow circuit cylinder that internal diameter is equal and coaxial with the through hole with the diameter of the through hole
The first screen drum (10) of the bodily form；
It is arranged in the supporting plate (2) and is set in the second sieve of the outside hollow circuit cylinder bodily form of first screen drum (10)
Cylinder (5), has first annular space (11), second screen drum between first screen drum (10) and second screen drum (5)
(5) there is the second annular space (12) between the filter housing (3)；
It is filled in the filtrate (X) in the first annular space (11)；
And, it is arranged on the electric heater (4) between the bottom of the supporting plate (2) and the filter housing (3)；
The top sealing of first screen drum (10) and second screen drum (5), bottom are opened, and being provided with the wall of side is used for
The gap enabled flow through.
2. filter according to claim 1, it is characterised in that first screen drum (10) and the second screen drum (5) with
The filter housing (3) is coaxial.
3. filter according to claim 1, it is characterised in that first screen drum (10) and the second screen drum (5)
Top is fixed by channel-section steel (1).
4. filter according to claim 1, it is characterised in that the electric heater (4) is explosion-proof electric heating device.
5. filter according to claim 1, it is characterised in that the quantity of the electric heater (4) is more than 2, and
It is even to be distributed in the filter.
6. filter according to claim 1, it is characterised in that the profile of the electric heater (4) is tubulose.
7. filter according to claim 6, it is characterised in that the length direction of the electric heater (4) and the support
Plate (2) is parallel, and it originates in the filter housing (3), and extends to the axis direction of the filter.
8. filter according to claim 7, it is characterised in that the length of the electric heater (4) is less than the half of filter
Footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621461674.2U CN206454322U (en) | 2016-12-29 | 2016-12-29 | A kind of oil field produced water filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621461674.2U CN206454322U (en) | 2016-12-29 | 2016-12-29 | A kind of oil field produced water filter |
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| Publication Number | Publication Date |
|---|---|
| CN206454322U true CN206454322U (en) | 2017-09-01 |
Family
ID=59696776
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621461674.2U Active CN206454322U (en) | 2016-12-29 | 2016-12-29 | A kind of oil field produced water filter |
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| Country | Link |
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| CN (1) | CN206454322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245946A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气股份有限公司 | A kind of oil field produced water filter and its purification method |
| CN112284599A (en) * | 2020-08-31 | 2021-01-29 | 四川航天川南火工技术有限公司 | Acceptance device and method for quantifying output power of flexible detonating cord |
-
2016
- 2016-12-29 CN CN201621461674.2U patent/CN206454322U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245946A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气股份有限公司 | A kind of oil field produced water filter and its purification method |
| CN112284599A (en) * | 2020-08-31 | 2021-01-29 | 四川航天川南火工技术有限公司 | Acceptance device and method for quantifying output power of flexible detonating cord |
| CN112284599B (en) * | 2020-08-31 | 2022-04-22 | 四川航天川南火工技术有限公司 | Acceptance device and method for quantifying output power of flexible detonating cord |
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