CN113877271B - Oil field petroleum filtering device with impurity cleaning function - Google Patents
Oil field petroleum filtering device with impurity cleaning function Download PDFInfo
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- CN113877271B CN113877271B CN202111489190.4A CN202111489190A CN113877271B CN 113877271 B CN113877271 B CN 113877271B CN 202111489190 A CN202111489190 A CN 202111489190A CN 113877271 B CN113877271 B CN 113877271B
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- 238000001914 filtration Methods 0.000 title claims abstract description 174
- 239000012535 impurity Substances 0.000 title claims abstract description 82
- 239000003208 petroleum Substances 0.000 title claims abstract description 53
- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 20
- 239000010865 sewage Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 15
- 239000003921 oil Substances 0.000 description 42
- 239000010779 crude oil Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the field of oil filtration in oil fields, in particular to an oil field petroleum filtration device with an impurity cleaning function. Including first filter tube, filter, second filter tube and filter core etc, first filter tube is installed on oil pipeline, and the filter setting is in first filter tube, and the second filter tube communicates through communicating pipe and first filter tube, and the filter core setting is in the second filter tube. According to the invention, the solid impurities of petroleum are filtered by the cooperation of the first filter pipe and the filter plate, the solid impurities in the first filter pipe are collected to the second filter pipe by the cooperation of the rotor pump and the electromagnetic valve, the filtered impurities are stored in the second filter pipe by the filter element, and the filter plate and the filter element in the device are self-cleaned by the cooperation of the rotor pump and the first filter pipe and the second filter pipe, the first filter pipe and the filter plate are detachable, and the second filter pipe and the filter element are detachable, so that the operation of replacing the filter plate and the filter element by workers is simple.
Description
Technical Field
The invention relates to the field of oil extraction matching devices of oil fields, in particular to a petroleum filtering device with an impurity cleaning function for oil fields.
Background
Petroleum is a viscous and dark brown liquid called as industrial blood, oil-gas exploration is successively carried out in 82 main large and medium sedimentation basins in China since the early 50 s of the last century, more than 500 oil fields are discovered, and petroleum is used as a raw material of a plurality of chemical industrial products such as solvents, chemical fertilizers, pesticides, plastics and the like, so that the petroleum has wide application fields and great use value.
After petroleum is adopted in the existing oil field, in order to avoid influencing subsequent operation equipment before subsequent dehydration, refining and purification are carried out on the petroleum, a petroleum filtering device is adopted to filter solid impurities in the petroleum; current oil filters generally through Y type filter and realizes, and inside Y type filter during operation entered oil pipe into the casing with the oil, made the oil through the filter screen, then obtained the oil after filtering at an oil pipe, and the problem of current device is, can't realize the separation of impurity after the collection with filter equipment and filter equipment's self-cleaning function, and when solid impurity content was many in the oil, the filter screen change operation can become frequently and wash the difficulty, and long-term use back filter effect is not good.
In view of the above technical problems, we have developed a petroleum filtering apparatus for oil field having an impurity cleaning function.
Disclosure of Invention
In order to overcome the defects that the existing petroleum filtering device cannot be separated from the filtering device after impurities are collected, the filtering device has no self-cleaning function and the filter screen is not easy to replace, the petroleum filtering device for the oil field, which has the function of preventing the filter plate from being blocked and cleaning the impurities, is provided.
An oil field petroleum filtering device with impurity cleaning function, which comprises a first filtering pipe, a filtering plate, a communicating pipe and an impurity flow pipe, the second filter tube, the filter core, the rotor pump, the solenoid valve, second solenoid valve and third solenoid valve, first filter tube passes through bolt fixed mounting on oil pipeline, sliding connection has the filter in the first filter tube, the filter is provided with two at least, communicating pipe is provided with two, two communicating pipe pass through the bolt respectively and install in first filter tube lower part, the rigid coupling has the second filter tube on communicating pipe, the impurity runner pipe is provided with two, impurity runner pipe intercommunication first filter tube and second filter tube, can dismantle in the second filter tube and be provided with the filter core, be provided with the rotor pump on the right part communicating pipe, be provided with first solenoid valve on every communicating pipe respectively, be provided with the second solenoid valve on every impurity runner pipe, the third solenoid valve sets up on the second filter tube.
According to a further technical scheme, first flanges are fixedly connected to two ends of the first filter pipe, four first fixing blocks are arranged, the four first fixing blocks are fixedly connected to the upper portion of the first filter pipe respectively, four through holes are formed in the lower portion of the first filter pipe, a second flange is fixedly connected to the left through hole and the right through hole respectively, the middle through holes are communicated with the second filter pipe through impurity circulation pipes, two chutes are formed in the upper portion of the first filter pipe, installation grooves are formed in the walls of the chutes, U-shaped metal sealing strips are arranged in the installation grooves of the first filter pipe, and circular rubber sealing strips are arranged on the U-shaped metal sealing strips.
According to a further technical scheme, the inner diameter of the first filter pipe is larger than that of the petroleum transportation pipeline.
Further technical scheme, the filter slope sets up in first filter tube, and the filter is for buckling the shape, and filter upper portion rigid coupling has T shape installation piece, and T shape installation piece passes through bolted connection with first fixed block, and evenly open on the filter has the first guiding gutter of a plurality of, and it has the second guiding gutter to open in the middle of the filter, and evenly open on the filter has the filtration pore, and the filtration pore is seted up in first guiding gutter, and the lower part of filter is the echelonment.
According to a further technical scheme, the first flow guide groove is obliquely and downwards formed at a bent position from the outer side of the filter plate to the middle.
According to a further technical scheme, at least two filter plates are arranged, the density of the first guide grooves and the filter holes is gradually increased from left to right, and the groove intervals of the first guide grooves and the pore diameters of the filter holes are gradually reduced.
According to a further technical scheme, a sewage outlet pipe is arranged on the lower side of the right portion of the second filtering pipe, a third electromagnetic valve is arranged on the sewage outlet pipe, a mounting groove is formed in the inner surface of the right portion of the second filtering pipe, the second filtering pipe is divided into an upper portion and a lower portion, the connection portion of the upper portion and the lower portion of the second filtering pipe is in a step-shaped arrangement, a mounting groove is formed in the step-shaped outer surface of the upper portion of the second filtering pipe, the upper portion and the lower portion of the second filtering pipe are tightly attached to each other, a U-shaped rubber sealing strip is arranged in the mounting groove of the upper portion of the second filtering pipe, second fixing blocks are fixedly connected to the second filtering pipe, eight second fixing blocks are arranged on the second filtering pipe, the four second fixing blocks on the upper portion are respectively and fixedly connected to the second filtering pipe on the upper portion in a front-back symmetrical mode, the four second fixing blocks on the lower portion are respectively and fixedly connected to the second filtering pipe on the lower portion in a front-back symmetrical mode, and the second fixing blocks on the upper portion and the lower portion are respectively connected through bolts.
According to a further technical scheme, the right part of the filter element is in a step shape, the outer surface of the right part of the filter element and the left and right side surfaces of the filter element are respectively provided with a placing groove, U-shaped rubber sealing rings are arranged in the placing grooves on the left and right sides of the right part of the filter element, U-shaped metal sealing rings are arranged in the placing grooves on the outer surface of the right part of the filter element, and rubber sealing rings are sleeved on the U-shaped metal sealing rings.
According to a further technical scheme, the filter element is in a circular truncated cone shape, the end with the large diameter of the filter element is an opening, the opening is arranged in the second filter pipe rightwards, and the diameter of the hole in the filter element is smaller than or equal to the diameter of the filter hole in the filter plate.
The invention has the beneficial effects that: according to the invention, the petroleum is filtered by matching the first filter pipe and the filter plate, the solid impurities in the first filter pipe are collected to the second filter pipe by matching the rotor pump with the electromagnetic valve, the impurities filtered by the petroleum are stored in the second filter pipe by the filter element, the filter plate and the filter element in the device are self-cleaned by matching the rotor pump with the first filter pipe and the second filter pipe, the first filter pipe and the filter plate are detachable, the operation of replacing the filter plate is simple, and the second filter pipe and the filter element are detachable, so that the operation of replacing the filter element is simple.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic sectional perspective view of the present invention.
Fig. 3 is an exploded view of the three-dimensional structure of the U-shaped metal sealing strip and the circular rubber sealing strip of the invention.
Fig. 4 is a schematic perspective view of the filter plate of the present invention.
Fig. 5 is a partially enlarged perspective sectional view of the perfusion device of the present invention.
Fig. 6 is an enlarged schematic view of the three-dimensional structure at the position A of the present invention.
Fig. 7 is a schematic perspective view of the present invention at position C.
Fig. 8 is a schematic perspective view of the present invention at position B.
In the above drawings: 1-a first filter pipe, 101-a first flange, 102-a first fixing block, 103-a second flange, 104-a U-shaped metal sealing strip, 105-a circular rubber sealing strip, 2-a filter plate, 201-a T-shaped mounting block, 202-a first diversion trench, 203-a filter hole, 204-a second diversion trench, 3-a communication pipe, 301-an impurity circulation pipe, 4-a second filter pipe, 401-a sewage outlet pipe, 402-a second fixing block, 403-a U-shaped rubber sealing strip, 5-a filter core, 501-a U-shaped rubber sealing ring, 502-a U-shaped metal sealing ring, 503-a rubber sealing ring, 6-a rotor pump, 7-a first electromagnetic valve, 701-a second electromagnetic valve and 702-a third electromagnetic valve.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
Example 1
A petroleum filtering device with impurity cleaning function for oil field, as shown in figure 1 and figure 2, comprises a first filtering pipe 1, a filtering plate 2, communicating pipes 3, an impurity circulation pipe 301, a second filtering pipe 4, a filter element 5, a rotor pump 6, an electromagnetic valve 7, a second electromagnetic valve 701 and a third electromagnetic valve 702, wherein the first filtering pipe 1 is fixedly arranged on an oil conveying pipeline through bolts, the first filtering pipe 1 is connected with the filtering plate 2 in a sliding way, at least two filtering plates 2 are arranged, two communicating pipes 3 are arranged, the two communicating pipes 3 are respectively arranged at the lower part of the first filtering pipe 1 through bolts, the second filtering pipe 4 is fixedly connected on the communicating pipes 3, two impurity circulation pipes 301 are arranged, the impurity circulation pipe 301 is communicated with the first filtering pipe 1 and the second filtering pipe 4, the filter element 5 is detachably arranged in the second filtering pipe 4, the rotor pump 6 is arranged on the right communicating pipe 3, each communicating pipe 3 is provided with a first solenoid valve 7, each impurity flow pipe 301 is provided with a second solenoid valve 701, and a third solenoid valve 702 is arranged on the second filtering pipe 4.
When the device works, the aim of removing impurities in the first filter pipe 1 is fulfilled only by manually setting the on-off time of the first electromagnetic valve 7, so that the impurity removing work is realized on the premise of not influencing the original normal transportation speed, the time of cleaning equipment is reduced, the crude oil conveying efficiency is improved, in the petroleum conveying process, the petroleum passes through the first filter pipe 1, the filter plate 2 filters the solid impurities in the petroleum, the solid impurities are blocked below the left side of the filter plate 2, after the first electromagnetic valve 7 and the second electromagnetic valve 701 are opened, the second filter pipe 4 is communicated with the first filter pipe 1, the rotor pump 6 also starts to work simultaneously, the petroleum enters the second filter pipe 4 through other communicating pipes 3 except the communicating pipe 3 on the rightmost side, at the moment, the solid impurities below the filter plate 2 enter the second filter pipe 4, accomplish the impurity clearance in first filter tube 1, later close first solenoid valve 7 and second solenoid valve 701, meanwhile, rotor pump 6 stop work, rotor pump 6 plays the effect of supplementary water conservancy diversion at work, because there is the blockking of filter 2 in first filter tube 1, so the pressure of left part can be greater than right side pressure, including rotor pump 6's initiative suction, oil can get into second filter tube 4 sooner, solid impurity can accelerate to get into second filter tube 4 simultaneously, the clearance efficiency of impurity in first filter tube 1 has wholly accelerated, under the state that first solenoid valve 7 and second solenoid valve 701 were closed, the staff realizes the impurity clearance to second filter tube 4 through opening third solenoid valve 702.
As shown in fig. 1-3, two ends of a first filtering pipe 1 are fixedly connected with first flanges 101, four first fixing blocks 102 are provided, the four first fixing blocks 102 are respectively fixedly connected to the upper portion of the first filtering pipe 1, the first fixing blocks 102 are used for fixing the filtering plate 2 in a matching manner, the lower portion of the first filtering pipe 1 is provided with four through holes, the left through hole and the right through hole are respectively fixedly connected with second flanges 103, the middle two through holes are communicated with a second filtering pipe 4 through 301-impurity pipes, the upper portion of the first filtering pipe 1 is provided with two chutes, the chute walls of the chutes of the first filtering pipe 1 are provided with accommodating grooves, the accommodating grooves of the first filtering pipe 1 are provided with U-shaped metal sealing strips 104, and the U-shaped metal sealing strips 104 are provided with circular rubber sealing strips 105.
First filter pipe 1 is connected on oil pipeline through first flange 101, U-shaped metal sealing strip 104 and circular rubber sealing strip 105 on the first filter pipe 1 cooperate with 2 upper portions of filter, U-shaped metal sealing strip 104 realizes the sealed effect under the pressure environment with 2 in close contact with of filter, prevent the condition of weeping through circular rubber sealing strip 105, under the pressure environment in first filter pipe 1, filter 2 is inseparabler with U-shaped metal sealing strip 104 and the cooperation of circular rubber sealing strip 105, better sealed effect has been reached.
As shown in fig. 1 and 4, the inner diameter of the first filtering pipe 1 is larger than that of the petroleum transportation pipeline for increasing the filtering efficiency of petroleum, the filtering plate 2 is obliquely arranged in the first filtering pipe 1 for increasing the contact area of petroleum filtering, the filtering plate 2 is arranged in a bending shape, so that impurities are not easy to accumulate on the filtering plate 2, the upper part of the filtering plate 2 is fixedly connected with a T-shaped mounting block 201, the T-shaped mounting block 201 is connected with the first fixing block 102 through a bolt, a plurality of first guiding grooves 202 are uniformly arranged on the filtering plate 2, the first guiding grooves 202 are obliquely arranged downwards from the outer side to the middle bending part of the filtering plate 2, the middle part of the filtering plate 2 is provided with a second guiding groove 204, the second guiding groove 204 guides the petroleum and the filtered impurities impacting on the filtering plate 2, filtering holes 203 are uniformly arranged on the filtering plate 2, the filtering holes 203 are arranged in the first guiding grooves 202, and the lower part of the filtering plate 2 is arranged in a ladder shape, for being matched and clamped with the first filter pipe 1.
In the process of filtering petroleum in the first filtering pipe 1, because the filtering plate 2 can not avoid generating resistance to oil path transportation, the inner diameter of the first filtering pipe 1 is set to be thicker than that of a petroleum transportation pipeline, so as to realize the purpose that more petroleum in the first filtering pipe 1 is filtered simultaneously, the petroleum transportation flow of the petroleum transportation pipeline in front of and behind the first filtering pipe 1 is basically consistent, the obliquely arranged filtering plate 2 increases the passing area of the petroleum, so that the filtering efficiency of the filtering plate 2 to the petroleum is improved, meanwhile, the obliquely arranged filtering plate 2 enables the filtered impurities to be accumulated below the filtering plate 2, the blockage of the filtering plate 2 can not be caused, the petroleum is flushed onto the filtering plate 2, the filtering holes 203 block the solid impurities in the petroleum in the first diversion groove 202, the first diversion groove 202 enables partial petroleum to flow along the groove wall, the petroleum drives the impurities in the first diversion groove 202 to obliquely enter the second diversion groove 204, impurity moves to filter 2 below along second guiding gutter 204 downwards, the filter 2 of buckling cushions the impact force of oil, and utilize the oil impact force to erode filter 2, avoid solid impurity to block up filtration pore 203, the clearance to filter 2 in the filtering process has been realized, filter 2 of slope decomposes into slant decurrent pressure with partial oil impulsive force, through slant decurrent pressure with the better restriction of filter 2 in first filter tube 1, cooperate first filter tube 1 to realize better sealed effect simultaneously.
As shown in fig. 2, the number of the filter plates 2 is at least two, from the left side to the right side of the filter plate 2, the densities of the first guiding gutter 202 and the filter holes 203 are gradually increased, the groove spacing of the first guiding gutter 202 and the pore diameters of the filter holes 203 are gradually reduced, and the solid impurities in the oil are different in size, so that the graded filtration of the solid impurities in the oil is realized through the first guiding gutter 202 and the filter holes 203 with different densities, the graded filtration enables the impurities to be successively blocked by the filter plates 2 from large to small, the graded filtration firstly enables the impurities not to be excessively accumulated to block the filter plates 2, and the graded filtration increases the passing rate of the oil during filtration, so that the filtration efficiency of the oil solid impurities is further increased.
As shown in fig. 5 and 6, a sewage outlet pipe 401 is arranged at the lower right side of the second filtering pipe 4, a third electromagnetic valve 702 is arranged on the sewage outlet pipe 401, an installation groove is arranged on the inner surface of the right part of the second filtering pipe 4, the second filtering pipe 4 is divided into an upper part and a lower part, the connection position of the upper part and the lower part of the second filtering pipe 4 is arranged in a ladder shape, so that the matching area of the upper part and the lower part of the second filtering pipe 4 is increased, thereby realizing better sealing performance, a placement groove is arranged on the ladder-shaped outer surface of the second filtering pipe 4 at the upper part, a U-shaped rubber sealing strip 403 is arranged in the placement groove of the second filtering pipe 4 at the upper part, a second fixing block 402 is fixedly connected to the second filtering pipe 4 at the upper part, eight second fixing blocks 402 are arranged on the second filtering pipe 4, four second fixing blocks 402 at the upper side are respectively and symmetrically fixedly connected to the second filtering pipe 4 at the upper part in the front-back direction, four second fixing blocks 402 at the lower side are respectively and symmetrically and fixedly connected to the second filtering pipe 4 at the lower part, the upper and lower second fixing blocks 402 are symmetrically disposed, and the upper and lower second fixing blocks 402 are connected by bolts, respectively.
After impurity got into second filter tube 4, impurity just was stored in second filter tube 4 bottom, after certain volume was hoarded to impurity, the staff controlled the third solenoid valve 702 on the dirty pipe 401 and opened, the clearance of impurity is accomplished in the impurity of discharging from dirty pipe 401 of discharging of the impurity of hoarding, because impurity can move right under the drive that the oil flows, so will discharge dirty pipe 401 and set up in second filter tube 4 right lower part, set up two parts about second filter tube 4 and make things convenient for taking out of filter core 5, simultaneously because the oil in second filter tube 4 is in static state for a long time, so can produce phenomenons such as wax precipitation and impurity adhesion on second filter tube 4 pipe wall, conveniently clear up and maintain its self and its inside filter core 5 through detachable second filter tube 4.
As shown in fig. 7 and 8, the filter element 5 is in a circular truncated cone shape, one end of the filter element 5 with a large diameter is an opening, the opening is arranged in the second filter pipe 4 rightwards, the filter element 5 needs to block impurities filtered by the filter plate 2 in the second filter pipe 4, so the aperture of the filter element 5 is smaller than or equal to the diameter of the filter hole 203 on the filter plate 2, the right part of the filter element 5 is in a step shape, the outer surface and the left and right side surfaces of the right end of the filter element 5 are respectively provided with a placing groove, the placing grooves on the left and right sides of the right part of the filter element 5 are respectively provided with a U-shaped rubber sealing ring 501, the placing groove on the outer surface of the right part of the filter element 5 is provided with a U-shaped metal sealing ring 502, and the U-shaped metal sealing ring 502 is sleeved with a rubber sealing ring 503.
The circular truncated cone-shaped filter element 5 is arranged in the second filter pipe 4, the circular truncated cone-shaped filter element 5 increases the filtering area of petroleum, simultaneously reduces the contact area with impurities at the bottom of the second filter pipe 4, saves more spaces of the second filter pipe 4 while ensuring high filtering efficiency, ensures that the second filter pipe 4 has more spaces for storing the impurities, the U-shaped rubber sealing ring 501 is matched with the mounting groove of the second filter pipe 4, when the filter element 5 is installed, the U-shaped rubber sealing ring 501 is tightly contacted and clamped with the mounting groove of the second filter pipe 4, the filter element 5 is conveniently installed in the second filter pipe 4, the filter element 5 is pressed by the petroleum flow when the petroleum is filtered, at the moment, when the U-shaped rubber sealing ring 501 is extruded, the U-shaped rubber sealing ring 501 is more tightly attached to the mounting groove of the second filter pipe 4, and better sealing effect between the filter element 5 and the second filter pipe 4 is realized, the U-shaped metal sealing ring 502 is matched with the rubber sealing ring 503, when the filter element 5 is subjected to pressure caused by petroleum flowing, the pressure causes the U-shaped metal sealing ring 502 and the rubber sealing ring 503 to be attached to the mounting groove of the second filter pipe 4, and a better sealing effect is realized.
Example 2
Based on the embodiment 1, as shown in fig. 2, 4 and 5, the filtering device not only removes the impurities in the first filtering pipe 1 in the oil transportation state, but also periodically cleans the filtering plate 2 and the filtering core 5 in the long-time use process of the device, the device provides power through the rotor pump 6, the filtering plate 2 is periodically self-cleaned by the counterclockwise circulation flow of crude oil, the service time of the filtering plate 2 is prolonged, the replacement frequency of the filtering plate 2 is reduced, the filtering core 5 is periodically self-cleaned by the clockwise circulation flow of crude oil, when the filtering plate 2 needs to be cleaned, the worker opens the first electromagnetic valve 7 and the second electromagnetic valve 701 on the communicating pipe 3 to fill the first filtering pipe 1 and the second filtering pipe 4 with crude oil, then closes all the valves at the two ends of the first filtering pipe 1 to cut off the oil transportation pipeline, controls to start the rotor pump 6, the rotor pump 6 provides the main power to make the crude oil in the first filtering pipe 1 and the second filtering pipe 4 flow in a counterclockwise circulating way, the circulating flow of the crude oil reversely washes the filtering plate 2 counterclockwise to clean the impurities blocked in the filtering holes 203, the residual impurities in the first filtering pipe 1 enter the second filtering pipe 4 through the counterclockwise flow of the oil, the filtering core 5 filters the oil in the second filtering pipe 4 to retain the solid impurities in the oil in the second filtering pipe 4, the second electromagnetic valve 701 is closed after a period of time, the oil in the device is driven by the rotor pump 6, under the condition that the second electromagnetic valve 701 no longer passes through the oil, the flow of the crude oil passing through the left filtering plate 2 is increased, the left filtering plate 2 is enabled to obtain better cleaning effect, when the filtering core 5 is self-cleaned after the self-cleaning of the filtering plate 2 is completed, the on-off state of the first electromagnetic valve 7 is kept when the filtering plate 2 is self-cleaned, starting the rotor pump 6 to reversely rotate, enabling crude oil in the first filter pipe 1 and the second filter pipe 4 to flow clockwise in a circulating mode, enabling the filter element 5 to be flushed through the crude oil in the second filter pipe 4 flowing leftwards, enabling the filter element 5 to complete self-cleaning, after the filter plate 2 and the filter element 5 are self-cleaned, enabling a worker to open the first electromagnetic valve 7 at the lowest position to discharge oil in the device from the sewage discharge pipe 401, then closing all the first electromagnetic valves 7 and the second electromagnetic valves 701, opening valves at two ends of the first filter pipe 1, and enabling the oil transportation pipeline to be circulated again.
Example 3
Based on the embodiment 2, as shown in fig. 2 and 5, after the device is used for a long time, the filter plate 2 and the filter element 5 need to be cleaned and maintained deeply or replaced, at the later stage of the service life of the filter plate 2 and the filter element 5, firstly, the device is cleaned of impurities as described in the embodiment 1, after the oil pipeline is cut off, the oil in the device is discharged through the sewage outlet pipe 401, the worker removes the bolts connecting the first filter pipe 1 and the filter plate 2, then directly pulls out the filter plate 2 obliquely outwards, then, the filter plate 2 after maintenance or new is replaced into the first filter pipe 1, then the filter plate 2 is fixed on the first filter pipe 1 through the bolts, when the filter element 5 is replaced, the bolts at two sides of the second filter pipe 4 are removed, the second filter pipe 4 at the lower half is removed, and the filter element 5 is directly removed, and then the impurities attached to the second filter pipe 4 are removed and the filter element 5 is maintained and replaced, so that the device enables the replacement operation of the filter plate 2 and the filter element 5 to be simple, time-saving and labor-saving.
While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (9)
1. The oil field petroleum filtering device with the impurity cleaning function is characterized by comprising a first filtering pipe (1), a filtering plate (2), communicating pipes (3), an impurity circulating pipe (301), a second filtering pipe (4), a filter element (5), a rotor pump (6), an electromagnetic valve (7), a second electromagnetic valve (701) and a third electromagnetic valve (702), wherein the first filtering pipe (1) is fixedly arranged on an oil pipeline through bolts, the filtering plate (2) is connected in the first filtering pipe (1) in a sliding mode, at least two filtering plates (2) are arranged, the communicating pipes (3) are provided with two, the two communicating pipes (3) are respectively arranged at the lower part of the first filtering pipe (1) through bolts, the second filtering pipe (4) is fixedly connected on the communicating pipes (3), the impurity circulating pipe (301) is provided with two, the impurity circulating pipe (301) is communicated with the first filtering pipe (1) and the second filtering pipe (4), can dismantle in second filter tube (4) and be provided with filter core (5), filter (2) slope sets up in first filter tube (1), the left surface lower extreme of the upper end mouth of pipe next-door neighbour of impurity runner pipe (301) every filter (2), the lower extreme mouth of pipe of impurity runner pipe (301) is located the left side of filter core (5), be provided with rotor pump (6) on right part communicating pipe (3), be provided with first solenoid valve (7) on every communicating pipe (3) respectively, be provided with second solenoid valve (701) on every impurity runner pipe (301), third solenoid valve (702) set up on second filter tube (4).
2. The oil field petroleum filtering device with the impurity cleaning function as claimed in claim 1, wherein two ends of a first filtering pipe (1) are fixedly connected with first flanges (101), the number of the first fixing blocks (102) is four, the four first fixing blocks (102) are respectively and fixedly connected above the first filtering pipe (1), the lower portion of the first filtering pipe (1) is provided with four through holes, the left through hole and the right through hole are respectively and fixedly connected with second flanges (103), the middle two through holes are communicated with a second filtering pipe (4) through impurity circulation pipes (301), the upper portion of the first filtering pipe (1) is provided with two chutes, the chute walls are provided with installation grooves, U-shaped metal sealing strips (104) are arranged in the installation grooves of the first filtering pipe (1), and circular rubber sealing strips (105) are arranged on the U-shaped metal sealing strips (104).
3. The oil field petroleum filtering device with impurity cleaning function according to claim 2, characterized in that the inner diameter of the first filtering pipe (1) is larger than the inner diameter of the petroleum transportation pipeline.
4. The oil field petroleum filtering device with the impurity cleaning function according to claim 1, wherein the filtering plate (2) is bent, the upper portion of the filtering plate (2) is fixedly connected with a T-shaped mounting block (201), the T-shaped mounting block (201) is connected with the first fixing block (102) through a bolt, a plurality of first flow guide grooves (202) are uniformly formed in the filtering plate (2), the middle of the filtering plate (2) is provided with a second flow guide groove (204), filtering holes (203) are uniformly formed in the filtering plate (2), the filtering holes (203) are formed in the first flow guide grooves (202), and the lower portion of the filtering plate (2) is stepped.
5. The oil field petroleum filtering device with impurity cleaning function according to claim 4, characterized in that the first guiding gutter (202) is obliquely downwards opened from the outer side of the filtering plate (2) to the middle bending part.
6. The oil field petroleum filtering device with the impurity cleaning function according to claim 4, characterized in that, at least two filter plates (2) are provided, and on the filter plates (2) from left to right, the opening density of the first guiding grooves (202) and the filter holes (203) is gradually increased, and the groove spacing of the first guiding grooves (202) and the pore diameter of the filter holes (203) are gradually reduced.
7. The oil field petroleum filtering device with the impurity cleaning function according to claim 1, characterized in that a sewage outlet pipe (401) is arranged at the lower side of the right part of the second filtering pipe (4), a third electromagnetic valve (702) is arranged on the sewage outlet pipe (401), a mounting groove is arranged on the inner surface of the right part of the second filtering pipe (4), the second filtering pipe (4) is divided into an upper part and a lower part, the joint of the upper part and the lower part of the second filtering pipe (4) is arranged in a ladder shape, a mounting groove is arranged on the ladder-shaped outer surface of the second filtering pipe (4) at the upper part, the upper part and the lower part of the second filtering pipe (4) are tightly attached, a U-shaped rubber sealing strip (403) is arranged in the mounting groove of the second filtering pipe (4) at the upper half part, a second fixing block (402) is fixedly connected to the second filtering pipe (4), eight second fixing blocks (402) are arranged, four second fixing blocks (402) at the upper side are symmetrically and respectively fixedly connected to the second filtering pipe (4) at the upper part, the four second fixing blocks (402) on the lower side are symmetrically and longitudinally connected with the second filter pipe (4) on the lower part, the second fixing blocks (402) on the upper side and the lower side are symmetrically arranged, and the second fixing blocks (402) on the upper side and the lower side are connected through bolts.
8. The oil field petroleum filtering device with the impurity cleaning function according to claim 1, wherein the right part of the filter element (5) is in a step shape, the outer surface of the right part of the filter element (5) and the left and right side surfaces of the filter element are respectively provided with a placing groove, the placing grooves on the left and right sides of the right part of the filter element (5) are internally provided with a U-shaped rubber sealing ring (501), the placing groove on the outer surface of the right part of the filter element (5) is internally provided with a U-shaped metal sealing ring (502), and the U-shaped metal sealing ring (502) is sleeved with a rubber sealing ring (503).
9. The oil field petroleum filtering device with the impurity cleaning function according to claim 8, characterized in that the filter element (5) is in a round table shape, one end of the filter element (5) with a large diameter is an opening, the opening is arranged in the second filtering pipe (4) towards the right, and the diameter of the filter element (5) is smaller than or equal to the diameter of the filtering holes (203) on the filter plate (2).
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| CN116658130B (en) * | 2023-07-31 | 2023-10-20 | 招远金河石油设备技术开发有限公司 | Anti-blocking self-cleaning sand filtering pipe for oil well |
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| US5795472A (en) * | 1995-05-08 | 1998-08-18 | Nurse, Jr.; Harry L. | Multistage filter device including a housing with removable sidewalls having a filtering capacity |
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