CN111467870A - Sandstone filtration device for petroleum exploitation - Google Patents
Sandstone filtration device for petroleum exploitation Download PDFInfo
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- CN111467870A CN111467870A CN202010374638.7A CN202010374638A CN111467870A CN 111467870 A CN111467870 A CN 111467870A CN 202010374638 A CN202010374638 A CN 202010374638A CN 111467870 A CN111467870 A CN 111467870A
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- sand
- filter
- cavity
- fixedly connected
- sealing
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- 238000001914 filtration Methods 0.000 title claims abstract description 60
- 239000003208 petroleum Substances 0.000 title claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 147
- 238000007789 sealing Methods 0.000 claims abstract description 101
- 239000004575 stone Substances 0.000 claims abstract description 30
- 238000007599 discharging Methods 0.000 claims abstract description 26
- 238000012423 maintenance Methods 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 241000220317 Rosa Species 0.000 claims 1
- 238000005507 spraying Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000009287 sand filtration Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003027 oil sand Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
- C10G31/09—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by filtration
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a sand filter device for petroleum exploitation, which comprises a sand filter box, wherein a filter cavity is arranged in the sand filter box, a sand filter device is arranged in the filter cavity, sand in petroleum is filtered by the sand filter device through three-level filtering, the sand filter device can automatically scrape and maintain a filter screen, a filter screen maintenance device is arranged at the upper side of the sand filter device, a sand discharge device is arranged in the sand discharge cavity, the sand discharge device can ensure that the sand discharge cavity is not communicated with the filter cavity and can discharge sand scraped and cleaned by filtering, a sealing device is arranged at the right side of the sand discharge device, and when the sealing device is used for discharging sand, the filter cavity is not communicated with the sand discharge cavity, so that sand discharge movement can be carried out at the same time of filtering operation, the invention can realize automatic maintenance of the filter screen, the sand and stone discharging movement is performed while filtering the oil, thereby reducing the maintenance times.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to a sand and stone filtering device for oil exploitation.
Background
The oil exploitation refers to the action of excavating and extracting oil in places where the oil is stored, in the process of exploiting the oil, oil gas flows into a well bottom from a reservoir stratum and is driven to rise to a well head from the well bottom, the oil generally exploited carries a large amount of sand, the oil carrying the sand can hit friction equipment when being subjected to post-treatment, and after long-time use, the service life of the equipment can be shortened, so that sand filtration needs to be performed on the oil.
Disclosure of Invention
The technical problem is as follows: the existing petroleum sand filtration device usually needs to be stopped periodically to dismantle a filter screen, and the filter screen is maintained periodically, and needs to be stopped periodically to remove sand and stone filtered.
In order to solve the problems, the sand filter device for oil exploitation is designed in the embodiment, the sand filter device for oil exploitation of the embodiment comprises a sand filter box, a filter chamber is arranged in the sand filter box, a sand filter device is arranged in the filter chamber, sand in oil is filtered by the sand filter device through three-stage filtration, the sand filter device can automatically scrape and wash a filter screen, and therefore the maintenance frequency of equipment is reduced, the sand filter device comprises a support table fixedly connected to the upper side end surface of the sand filter box, a rotating shaft extending downwards into the filter chamber is fixedly connected to the lower side end surface of the support table, a motor fixedly connected to the support table is dynamically connected to the rotating shaft, a secondary bevel gear positioned on the upper side of the sand filter box is fixedly connected to the rotating shaft, three filter plates positioned in the filter chamber are distributed on the rotating shaft in an array manner, the sand filter device is characterized in that a filter screen maintenance device is arranged on the upper side of the sand filter device and used for providing lifting motion required by scraping and washing the filter screen, a sand discharge cavity positioned on the lower side of the filter cavity is arranged in the sand filter box and communicated with the filter cavity, a sand discharge device is arranged in the sand discharge cavity and can ensure that the sand discharge cavity is not communicated with the filter cavity and can discharge sand scraped and washed, the sand discharge device comprises a screw rod rotationally connected to the inner wall of the lower side of the sand discharge cavity, the screw rod extends upwards, an auxiliary motor fixedly connected to the inner wall of the lower side of the sand discharge cavity is dynamically connected to the screw rod, a lifting nut slidably connected to the inner wall of the rear side of the sand discharge cavity is in threaded connection with the screw rod, and a lifting sealing plate is slidably connected to the inner wall of the rear side of the filter cavity, the right side of the sand and stone discharging device is provided with a sealing device, and when the sealing device is used for discharging sand and stone, the filtering cavity is not communicated with the sand and stone discharging cavity, so that sand and stone discharging movement can be carried out while filtering operation is carried out.
Preferably, the filter plate is connected with the inner wall of the filter chamber in a sealing manner, the inner wall of the rear side of the filter chamber is connected with an input pipe in a communicating manner, the inner wall of the upper side of the filter chamber is provided with a through hole with an upward opening, the rotating shaft is connected with a sliding barrel which penetrates through the through hole in a sliding manner, the sliding barrel extends downwards into the filter chamber, the sliding barrel and the rotating shaft are in dynamic sealing, the sliding barrel and the through hole are in dynamic sealing, the sliding barrel is distributed with three sliding grooves with downward openings and towards and away from one side of the rotating shaft in a circumferential array manner, the filter plate is positioned in the sliding grooves, the sliding barrel is fixedly connected with three fixed rods distributed in a circumferential array manner on the circumferential end surface, the fixed rods are positioned in the filter chamber, the fixed rods are fixedly connected with scraper plates which are connected on the end surface of the filter plate in a sliding, the sliding cylinder is rotatably connected with a lifting plate positioned on the upper side of the sand-stone filtering box, the inner wall of the rear side of the filtering cavity is communicated and connected with an output pipe positioned on the right side of the input pipe, and a filtering net is arranged at the communication position of the output pipe and the filtering cavity.
Preferably, the filter screen maintenance device comprises a fixed plate fixedly connected to the left end surface of the support table and located in front of the secondary bevel gear, a gear shaft extending forward and backward is rotatably connected to the front end surface of the fixed plate, a secondary pulley located in front of the fixed plate is fixedly connected to the gear shaft, a bevel gear located in back of the fixed plate is fixedly connected to the gear shaft, the bevel gear is engaged with the secondary bevel gear, a transmission shaft extending forward is rotatably connected to the front end surface of the support table, the transmission shaft is located on the left upper side of the motor, a crank disc is fixedly connected to the transmission shaft, a V-belt pulley located in front of the crank disc is fixedly connected to the transmission shaft, a V-belt is connected between the V-belt pulley and the secondary pulley, and a secondary connecting rod is hinged between the front end surface of the crank disc and the front end surface of the lifting, and the auxiliary connecting rod is positioned at the front side of the V-belt.
Preferably, the lifting sealing plate is hinged with two bilaterally symmetrical sealing rotating plates, the sealing rotating plates and the lifting sealing plate enable the filter cavity not to be communicated with the sand and stone discharging cavity, the filter plate can be connected with the sealing rotating plates and the lifting sealing plate in a sealing way, a connecting rod is hinged between the sealing rotating plates and the lifting nut, the left inner wall and the right inner wall of the sand and stone discharging cavity are respectively provided with a locking cavity with an opening facing one side of the screw rod, the inner wall at the rear side of the locking cavity is connected with a lifting cylinder with an opening facing one side of the screw rod in a sliding way, a third compression spring is connected between the lifting cylinder and the inner wall at the lower side of the locking cavity, an inclined plane limiting rod is connected in the lifting cylinder in a sliding way, a second compression spring is connected between the inclined plane limiting rod and the inner wall at one side of the lifting cylinder far away from the screw rod, and the inclined plane limiting, thereby the restriction sealed commentaries on classics board rotates, fixedly connected with on the inclined plane gag lever post downside terminal surface, fixedly connected with is located on the locking chamber rear side inner wall the inclined plane piece of downside, the inclined plane piece can with the butt, be equipped with on grit discharge chamber left side and the right side inner wall and be located the spray rinsing chamber of locking chamber downside, spray rinsing chamber opening orientation lead screw one side, fixedly connected with spray tube on the spray rinsing chamber rear side inner wall, it is connected with the raceway to communicate mutually between spray tube and the outside water supply equipment, the spray tube is close to array distribution has five shower nozzles from bottom to top on the lead screw side terminal surface, be equipped with opening conical surface hole up on the grit discharge chamber downside inner wall, it has the discharge pipe to communicate between conical surface hole and the outside storage equipment.
Preferably, the sealing device comprises an auxiliary cylinder fixedly connected to the lower end face of the sandstone filtration tank, an auxiliary air cavity with a rightward opening is arranged in the auxiliary cylinder, two pressure release valves are arranged on the lower end face of the auxiliary air cavity, the flow directions of the air flow of the two pressure release valves are opposite, an auxiliary piston is slidably connected in the auxiliary air cavity, a first compression spring is connected between the lower inner walls of the auxiliary air cavity and the auxiliary piston, a lifting rod extending upwards into the sandstone discharge cavity is fixedly connected to the upper end face of the auxiliary piston, a push plate located in the sandstone discharge cavity is fixedly connected to the lifting rod, the push plate is abutted against the lifting nut, an air cylinder is respectively and fixedly connected to the left end face and the right end face of the sandstone filtration tank, the sealing rotating plate is located between the two air cylinders, an air cavity is arranged in each air cylinder, and a through groove is arranged on the inner wall of, the through groove is communicated with the sandstone discharge cavity, a piston is connected in the air cavity in a sliding mode, the piston is close to a sealing plate fixedly connected to the end face of one side of the sandstone discharge cavity, the sealing plate is located on the lower side of the rotating shaft and penetrates through the through groove, the sealing plate is connected with the through groove in a dynamic sealing mode, the sealing plate can extend into the sandstone discharge cavity, and the air cavity is communicated with the auxiliary air cavity and is connected with an air path pipe.
The invention has the beneficial effects that: the sand filter device can perform three-level filtering on oil through the three layers of filter screens, has a better filtering effect, the filter screen maintenance device can automatically scrape sand embedded in the filter screens during oil filtering, so that the filter screens are not required to be maintained and replaced by regular shutdown, the filtering effect and efficiency of the filter screens can be ensured by automatic maintenance of the filter screens, the filtering effect of the oil sand can be ensured, and the sand discharge device can perform sand discharge movement during oil filtering, so that sand removed during filtering is not required to be removed by regular shutdown, therefore, the sand filter device can realize automatic maintenance of the filter screens, and sand discharge movement during oil filtering, so that the maintenance times are reduced.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view showing the overall construction of a sand filter for oil production according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is an enlarged view of the structure at "B" of FIG. 2;
FIG. 4 is an enlarged view of the structure at "C" of FIG. 1;
FIG. 5 is an enlarged view of the structure at "D" of FIG. 1;
FIG. 6 is an enlarged view of the structure at "E" in FIG. 1;
FIG. 7 is an enlarged view of the structure at "F" in FIG. 1;
FIG. 8 is an enlarged view of the structure at "G" in FIG. 1;
FIG. 9 is a schematic view of the structure in the direction "H-H" of FIG. 7.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 9, and for the sake of convenience of description, the following orientations will be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a sand filtration device for petroleum exploitation, which is mainly applied to petroleum exploitation, and the invention is further explained by combining the attached drawings of the invention: the sand filtering device for petroleum exploitation comprises a sand filtering box 11, a filtering cavity 20 is arranged in the sand filtering box 11, a sand filtering device 101 is arranged in the filtering cavity 20, sand in petroleum is filtered by the sand filtering device 101 through three-level filtering, the sand filtering device 101 can automatically scrape and maintain a filter screen, and therefore the maintenance frequency of equipment is reduced, the sand filtering device 101 comprises a supporting platform 28 fixedly connected to the upper end face of the sand filtering box 11, a rotating shaft 21 extending downwards into the filtering cavity 20 is fixedly connected to the lower end face of the supporting platform 28, a motor 27 fixedly connected to the supporting platform 28 is dynamically connected to the rotating shaft 21, a secondary bevel gear 65 positioned at the upper side of the sand filtering box 11 is fixedly connected to the rotating shaft 21, three filtering plates 19 positioned in the filtering cavity 20 are distributed on the rotating shaft 21 in an array manner in the circumferential direction, the sand filter device 101 is provided with a filter screen maintenance device 102 on the upper side, the filter screen maintenance device 102 is used for providing lifting movement required for scraping and washing the filter screen, a sand discharge chamber 12 located on the lower side of the filter chamber 20 is arranged in the sand filter box 11, the sand discharge chamber 12 is communicated with the filter chamber 20, a sand discharge device 103 is arranged in the sand discharge chamber 12, the sand discharge device 103 enables the sand discharge chamber 12 not to be communicated with the filter chamber 20 and can discharge, filter and scrape washed sand, the sand discharge device 103 comprises a screw rod 15 rotatably connected to the inner wall of the lower side of the sand discharge chamber 12, the screw rod 15 extends upwards, an auxiliary motor 45 fixedly connected to the inner wall of the lower side of the sand discharge chamber 12 is connected to the screw rod 15 in a power mode, a lifting nut 16 connected to the inner wall of the rear side of the sand discharge chamber 12 in a sliding mode is connected to the screw rod 15 in a threaded mode, the inner wall of the rear side of the filter cavity 20 is connected with a lifting sealing plate 61 in a sliding mode, the right side of the sand discharging device 103 is provided with a sealing device 104, and when the sealing device 104 is used for discharging sand, the filter cavity 20 is not communicated with the sand discharging cavity 12, so that sand and stone discharging movement can be carried out while filtering operation is carried out.
Beneficially, the filter plate 19 is connected with the inner wall of the filter chamber 20 in a sealing manner, the inner wall of the rear side of the filter chamber 20 is connected with the input pipe 46 in a communicating manner, the inner wall of the upper side of the filter chamber 20 is provided with a through hole 67 with an upward opening, the rotating shaft 21 is connected with a sliding cylinder 22 penetrating through the through hole 67 in a sliding manner, the sliding cylinder 22 extends downwards into the filter chamber 20, the sliding cylinder 22 and the rotating shaft 21 are in a dynamic sealing manner, the sliding cylinder 22 and the through hole 67 are in a dynamic sealing manner, three sliding grooves 50 with downward openings and towards and far away from one side of the rotating shaft 21 are distributed in a circumferential array manner on the sliding cylinder 22, the filter plate 19 is located in the sliding grooves 50, three fixing rods 49 distributed in a circumferential array manner are fixedly connected to the circumferential end face of the sliding cylinder 22, the fixing rods 49 are located in the filter chamber 20, the scraper 23 is connected to the end face of the filter plate 19 in a sliding manner, the scraper 23 can scrape sand embedded into the mesh of the filter plate 19, the sliding cylinder 22 is connected with a lifting plate 24 positioned on the upper side of the sand filter box 11 in a rotating manner, the inner wall of the rear side of the filter chamber 20 is connected with an output pipe 48 positioned on the right side of the input pipe 46 in a communicating manner, a filter screen 47 is arranged at the communicating position of the output pipe 48 and the filter chamber 20, and oil flows into the filter chamber 20 through the input pipe 46 and then flows out of the output pipe 48.
Advantageously, the filter screen maintenance device 102 includes a fixed plate 25 fixedly connected to the left end surface of the supporting platform 28 and located in front of the secondary bevel gear 65, a gear shaft 63 extending forward and backward is rotatably connected to the front end surface of the fixed plate 25, a secondary pulley 64 located in front of the fixed plate 25 is fixedly connected to the gear shaft 63, a bevel gear 62 located in back of the fixed plate 25 is fixedly connected to the gear shaft 63, the bevel gear 62 is engaged with the secondary bevel gear 65, a forwardly extending transmission shaft 32 is rotatably connected to the front end surface of the supporting platform 28, the transmission shaft 32 is located at the upper left side of the motor 27, a crank disk 29 is fixedly connected to the transmission shaft 32, a V-shaped pulley 31 located in front of the crank disk 29 is fixedly connected to the transmission shaft 32, and a V-belt 30 is connected between the V-shaped pulley 31 and the secondary pulley 64, an auxiliary connecting rod 26 is hinged between the front end face of the crank disc 29 and the front end face of the lifting plate 24, the auxiliary connecting rod 26 is located on the front side of the V-shaped belt 30, the crank disc 29 drives the lifting plate 24 and the sliding cylinder 22 to move up and down through the auxiliary connecting rod 26 when the crank disc 29 rotates, and therefore the scraping plate 23 can scrape sand on the filter plate 19.
Beneficially, two bilaterally symmetrical sealing rotating plates 18 are hinged on the lifting sealing plate 61, the sealing rotating plates 18 and the lifting sealing plate 61 enable the filter cavity 20 not to be communicated with the gravel discharging cavity 12, the filter plate 19 can be connected with the sealing rotating plates 18 and the lifting sealing plate 61 in a sealing manner, a connecting rod 17 is hinged between the sealing rotating plates 18 and the lifting nut 16, locking cavities 33 with openings facing to one side of the screw rod 15 are respectively arranged on the inner walls of the left side and the right side of the gravel discharging cavity 12, a lifting cylinder 51 with an opening facing to one side of the screw rod 15 is connected on the inner wall of the rear side of the locking cavity 33 in a sliding manner, a third compression spring 54 is connected between the lifting cylinder 51 and the inner wall of the lower side of the locking cavity 33, an inclined plane limiting rod 53 is connected in the lifting cylinder 51 in a sliding manner, and a second compression spring 52 is connected between the inclined plane limiting rod 53 and the inner wall of the lifting cylinder 51 far away, the inclined plane limiting rod 53 can be abutted against the lower side end face of the sealing rotating plate 18 so as to limit the rotation of the sealing rotating plate 18, the lower side end face of the inclined plane limiting rod 53 is fixedly connected with a 56, the inner wall of the rear side of the locking cavity 33 is fixedly connected with an inclined plane block 55 positioned on the lower side of the 56, the inclined plane block 55 can be abutted against the 56, the inner walls of the left side and the right side of the sand discharging cavity 12 are provided with a spraying cavity 59 positioned on the lower side of the locking cavity 33, the opening of the spraying cavity 59 faces one side of the screw rod 15, the inner wall of the rear side of the spraying cavity 59 is fixedly connected with a spraying pipe 13, the spraying pipe 13 is communicated with external water supply equipment and is connected with a water conveying pipe 14, the spraying pipe 13 is provided with five spraying heads 58 from bottom to top on the end face of the side of the screw rod 15 in an array manner, the inner wall of the lower side of the sand discharging cavity 12 is, the nozzle 58 sprays high-pressure water to the sealing rotating plate 18, so that sand with oil on the sealing rotating plate 18 can be washed down.
Advantageously, the sealing device 104 includes a secondary cylinder 42 fixedly connected to the lower end surface of the sand filter box 11, a secondary air cavity 43 with a right opening is provided in the secondary cylinder 42, two pressure relief valves 68 are provided on the lower end surface of the secondary air cavity 43, the flow directions of the two pressure relief valves 68 are opposite, a secondary piston 57 is slidably connected in the secondary air cavity 43, a first compression spring 44 is connected between the lower inner walls of the secondary air cavity 43 and the secondary piston 57, a lifting rod 39 extending upward into the sand discharge cavity 12 is fixedly connected to the upper end surface of the secondary piston 57, a push plate 60 located in the sand discharge cavity 12 is fixedly connected to the lifting rod 39, the push plate 60 abuts against the lifting nut 16, one cylinder 34 is fixedly connected to each of the left and right end surfaces of the sand filter box 11, and the sealing rotary plate 18 is located between the two cylinders 34, the air cylinder 34 is internally provided with an air cavity 35, the opening of the air cavity 35 faces the inner wall of one side of the gravel discharge cavity 12 and is provided with a through groove 66, the through groove 66 is communicated with the gravel discharge cavity 12, the air cavity 35 is connected with a piston 37 in a sliding manner, the piston 37 is close to a sealing plate 36 fixedly connected to the end face of one side of the gravel discharge cavity 12, the sealing plate 36 is positioned on the lower side of the rotating shaft 21, the sealing plate 36 penetrates through the through groove 66, the sealing plate 36 is in dynamic sealing connection with the through groove 66, the sealing plate 36 can extend into the gravel discharge cavity 12, the air cavity 35 is communicated with the auxiliary air cavity 43 and is connected with an air passage pipe 38, and the filtering cavity 20 can be prevented from being communicated with the gravel discharge cavity 12 by moving the sealing plate 36 to the side close to the rotating.
The following will describe in detail the use of a sand filter device for oil production according to the present invention with reference to fig. 1 to 9: initial state: the sealing rotating plate 18 and the lifting sealing plate 61 are positioned at an upper limit position, the two sealing rotating plates 18 are parallel to the horizontal plane, the sealing rotating plate 18 and the lifting sealing plate 61 enable the filter cavity 20 not to be communicated with the gravel discharge cavity 12, the lifting cylinder 51 is positioned at the upper limit position under the action of the third compression spring 54, the inclined plane limiting rod 53 is positioned at the limit position close to one side of the gravel discharge cavity 12 under the action of the second compression spring 52, the inclined plane limiting rod 53 is abutted against the lower side end face of the sealing rotating plate 18, 56 is positioned at the upper side of the inclined plane block 55, the auxiliary piston 57, the lifting rod 39 and the push plate 60 are positioned at the upper limit position under the action of the first compression spring 44, and the piston 37 and the sealing plate 36 are positioned at the limit position far away from one side; when filtering the sand in the petroleum, the motor 27 is started, the external device delivers the unfiltered petroleum into the filter cavity 20 through the input pipe 46, the petroleum is filtered by the filter plates 19 at the left lower side and the right side, then flows through the filter screen 47, is filtered by the filter screen 47, and then is delivered to the outside through the output pipe 48, at the same time, the motor 27 drives the rotating shaft 21 to rotate, the rotating shaft 21 drives the filter plates 19 and the scraping plates 23 to rotate, the rotating direction of the filter plates 19 is opposite to the flowing direction of the petroleum, the filter plates 19 can scrape the sand embedded in the filter screen 47 by rotating, so that the sand falls on the sealing rotating plate 18, the rotating shaft 21 drives the auxiliary bevel gear 65 to rotate, the auxiliary bevel gear 65 drives the bevel gear 62 to rotate through meshing connection, the bevel gear 62 drives the gear shaft 63 and the auxiliary pulley 64 to rotate, the auxiliary pulley 64 drives the V belt pulley, the crank disc 29 drives the lifting plate 24 to reciprocate up and down along the rotating shaft 21 through the auxiliary connecting rod 26, the lifting plate 24 drives the sliding cylinder 22 to reciprocate up and down, the sliding cylinder 22 drives the fixing rod 49 and the scraper 23 to reciprocate up and down, and the scraper 23 is enabled to scrape sand embedded in the filter plate 19; after a period of time, after a certain amount of sand is accumulated on the sealing rotating plate 18, the auxiliary motor 45 is started, the auxiliary motor 45 drives the screw rod 15 to rotate, the screw rod 15 drives the lifting nut 16 to extend to the inner wall of the rear side of the sand discharging cavity 12 to move downwards through threaded connection, the sealing rotating plate 18 is limited by the inclined plane limiting rod 53 to rotate downwards, so that the lifting nut 16 drives the sealing rotating plate 18 and the lifting sealing plate 61 to move downwards, when the sealing rotating plate 18 drives the inclined plane limiting rod 53 and the lifting cylinder 51 to move downwards, and when 56 is abutted to the inclined plane block 55, the lifting nut 16 moves downwards to drive the push plate 60 and the lifting rod 39 to move downwards, the lifting rod 39 drives the auxiliary piston 57 to move downwards, airflow generated by the downward movement of the auxiliary piston 57 is conveyed into the air cavity 35 through the air path pipe 38, so as to push the piston 37 and the sealing plate 36 to move towards the side close to the sand discharging cavity 12, and when the sealing rotating plate 18, then, when the inclined plane limiting rod 53 on the ground of the sealing rotating plate 18 moves downwards to make 56 abut against the inclined plane block 55, the inclined plane block 55 pushes 56, the inclined plane limiting rod 53 moves to the side far away from the sandstone discharging cavity 12, so that the inclined plane limiting rod 53 is separated from the contact with the sealing rotating plate 18, simultaneously, the lifting sealing plate 61 abuts against the upper end surface of the screw rod 15, the sealing plate 36 moves to the limiting position close to one side of the rotating shaft 21, the two sealing plates 36 are sealed, so that the filter cavity 20 is not communicated with the sandstone discharging cavity 12, then the screw rod 15 drives the lifting nut 16 to move downwards continuously, so that the lifting nut 16 moves to the lower side of the inclined plane limiting rod 53, the third compression spring 54 pushes the lifting cylinder 51 to move upwards to reset, the second compression spring 52 pushes the inclined plane limiting rod 53 to move towards the side close to the sandstone discharging cavity 12 to reset, and because the lifting sealing plate 61 cannot move downwards continuously, so that, meanwhile, the external water supply equipment conveys water into the spray pipe 13 through the water conveying pipe 14, sprays the water onto the sealing rotating plate 18 through the spray head 58, flushes sand and oil adhered to the sealing rotating plate 18, discharges the flushed sand and oil to the external equipment through the conical hole 40 and the discharge pipe 41 for further treatment, simultaneously moves down the lifting nut 16 to continuously drive the lifting rod 39 to move down, and the lifting rod 39 drives the auxiliary piston 57 to move down to generate redundant airflow which is discharged through the pressure release valve 68 on the left side; after the sand is discharged, the auxiliary motor 45 is reversed to drive the lifting nut 16 to move upwards for resetting, the lifting nut 16 drives the sealing rotating plate 18 to rotate upwards for resetting through the connecting rod 17, then the lifting nut 16 drives the sealing rotating plate 18 and the lifting sealing plate 61 to move upwards, the sealing rotating plate 18 pushes the inclined plane limiting rod 53 to move towards one side away from the sand discharging cavity 12 firstly, then the sealing rotating plate 18 moves to the upper side of the inclined plane limiting rod 53, then the inclined plane limiting rod 53 moves for resetting and is abutted against the lower side end face of the sealing rotating plate 18 under the action of the second compression spring 52, meanwhile, in the process of moving upwards of the lifting nut 16, the first compression spring 44 drives the auxiliary piston 57 to move upwards for resetting, the negative pressure generated in the process of moving upwards the auxiliary piston 57 drives the piston 37 and the sealing plate 36 to move towards one side away from the rotating shaft 21 through the air passage pipe 38 for resetting, then the auxiliary piston 57, the external air flow is introduced into the sub air chamber 43 so that the sub piston 57 can be moved upward to be restored, thereby realizing the movement of discharging the sand while filtering the oil.
The invention has the beneficial effects that: the sand filter device can perform three-level filtering on oil through the three layers of filter screens, has a better filtering effect, the filter screen maintenance device can automatically scrape sand embedded in the filter screens during oil filtering, so that the filter screens are not required to be maintained and replaced by regular shutdown, the filtering effect and efficiency of the filter screens can be ensured by automatic maintenance of the filter screens, the filtering effect of the oil sand can be ensured, and the sand discharge device can perform sand discharge movement during oil filtering, so that sand removed during filtering is not required to be removed by regular shutdown, therefore, the sand filter device can realize automatic maintenance of the filter screens, and sand discharge movement during oil filtering, so that the maintenance times are reduced.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (5)
1. The utility model provides a sand and stone filter equipment that oil was opened and adopted, includes sand and stone rose box, its characterized in that: the sand filter box is internally provided with a filter chamber, the filter chamber is internally provided with a sand filter device, the sand filter device filters sand in petroleum through three-level filtration, and the sand filter device can automatically scrape and wash and maintain a filter screen so as to reduce the maintenance frequency of equipment, the sand filter device comprises a support table fixedly connected on the upper end surface of the sand filter box, the lower end surface of the support table is fixedly connected with a rotating shaft which extends downwards into the filter chamber, the rotating shaft is dynamically connected with a motor fixedly connected on the support table, the rotating shaft is fixedly connected with a secondary bevel gear positioned on the upper side of the sand filter box, three filter plates positioned in the filter chamber are distributed in an array way on the rotating shaft, the upper side of the sand filter device is provided with a filter screen maintenance device, and the filter screen maintenance device is used for providing the lifting motion required by scraping and washing the filter, a sand and stone discharge cavity positioned on the lower side of the filter cavity is arranged in the sand and stone filter box, the sand and stone discharge cavity is communicated with the filter cavity, a sand and stone discharge device is arranged in the sand and stone discharge cavity, the sand and stone discharge device can enable the sand and stone discharge cavity to be not communicated with the filter cavity and can discharge sand and stone washed by filtration and scraping, the sand and stone discharge device comprises a screw rod rotationally connected to the inner wall of the lower side of the sand and stone discharge cavity, the screw rod extends upwards, an auxiliary motor fixedly connected to the inner wall of the lower side of the sand and stone discharge cavity is in power connection with the screw rod, a lifting nut slidably connected to the inner wall of the rear side of the sand and stone discharge cavity is in threaded connection with the screw rod, a lifting sealing plate is slidably connected to the inner wall of the rear side of the filter cavity, a sealing device is arranged on the right side of the sand and stone discharge device, and when the sealing device, thereby the sand and stone discharging movement can be carried out while the filtering operation is carried out.
2. A sand filter unit for oil exploitation according to claim 1, wherein: the filter plate is connected with the inner wall of the filter chamber in a sealing way, the inner wall at the rear side of the filter chamber is communicated and connected with an input pipe, the inner wall at the upper side of the filter chamber is provided with a through hole with an upward opening, the rotating shaft is connected with a sliding barrel which penetrates through the through hole in a sliding way, the sliding barrel extends downwards into the filter chamber, the sliding barrel and the rotating shaft are in dynamic sealing, the sliding barrel and the through hole are in dynamic sealing, the sliding barrel is distributed with three sliding chutes with downward openings and towards and away from one side of the rotating shaft in an annular array way, the filter plate is positioned in the sliding chutes, the annular end surface of the sliding barrel is fixedly connected with three fixed rods distributed in an annular array way, the fixed rods are positioned in the filter chamber, the fixed rods are fixedly connected with scraper plates, the scraper plates are connected on the end surface of the filter plate, the sliding cylinder is rotatably connected with a lifting plate positioned on the upper side of the sand-stone filtering box, the inner wall of the rear side of the filtering cavity is communicated and connected with an output pipe positioned on the right side of the input pipe, and a filtering net is arranged at the communication position of the output pipe and the filtering cavity.
3. A sand filter unit for oil exploitation according to claim 2, wherein: the filter screen maintenance device comprises a fixed plate which is fixedly connected to the left end face of the support table and is positioned on the front side of the auxiliary bevel gear, a gear shaft which extends forwards and backwards is rotatably connected to the front end face of the fixed plate, an auxiliary belt pulley which is positioned on the front side of the fixed plate is fixedly connected to the gear shaft, a bevel gear which is positioned on the rear side of the fixed plate is fixedly connected to the gear shaft, the bevel gear is meshed with the auxiliary bevel gear, a transmission shaft which extends forwards is rotatably connected to the front end face of the support table and is positioned on the left upper side of the motor, a crank disc is fixedly connected to the transmission shaft, a V belt pulley which is positioned on the front side of the crank disc is fixedly connected to the transmission shaft, a V belt is connected between the V belt pulley and the auxiliary belt pulley, and an auxiliary connecting rod is hinged, and the auxiliary connecting rod is positioned at the front side of the V-belt.
4. A sand filter unit for oil exploitation according to claim 1, wherein: two bilaterally symmetrical sealing rotating plates are hinged on the lifting sealing plate, the sealing rotating plates and the lifting sealing plate enable the filter cavity to be not communicated with the sand and stone discharging cavity, the filter plate can be connected with the sealing rotating plates and the lifting sealing plate in a sealing way, a connecting rod is hinged between the sealing rotating plates and the lifting nut, locking cavities with openings facing one side of the screw rod are respectively arranged on the inner walls of the left side and the right side of the sand and stone discharging cavity, a lifting cylinder with an opening facing one side of the screw rod is connected on the inner wall of the rear side of the locking cavity in a sliding way, a third compression spring is connected between the lifting cylinder and the inner wall of the lower side of the locking cavity, an inclined plane limiting rod is connected in the lifting cylinder in a sliding way, a second compression spring is connected between the inclined plane limiting rod and the inner wall of the lifting cylinder, which is far away from one side of the screw rod, thereby the restriction sealed commentaries on classics board rotates, fixedly connected with on the inclined plane gag lever post downside terminal surface, fixedly connected with is located on the locking chamber rear side inner wall the inclined plane piece of downside, the inclined plane piece can with the butt, be equipped with on grit discharge chamber left side and the right side inner wall and be located the spray rinsing chamber of locking chamber downside, spray rinsing chamber opening orientation lead screw one side, fixedly connected with spray tube on the spray rinsing chamber rear side inner wall, it is connected with the raceway to communicate mutually between spray tube and the outside water supply equipment, the spray tube is close to array distribution has five shower nozzles from bottom to top on the lead screw side terminal surface, be equipped with opening conical surface hole up on the grit discharge chamber downside inner wall, it has the discharge pipe to communicate between conical surface hole and the outside storage equipment.
5. A sand filter unit for oil exploitation according to claim 4, wherein: the sealing device comprises an auxiliary cylinder fixedly connected to the lower side end face of the sandstone filtration tank, an auxiliary air cavity with a rightward opening is arranged in the auxiliary cylinder, two pressure release valves are arranged on the lower side end face of the auxiliary air cavity, the flow directions of air currents of the two pressure release valves are opposite, an auxiliary piston is slidably connected in the auxiliary air cavity, a first compression spring is connected between the lower side inner walls of the auxiliary air cavity by the auxiliary piston, a lifting rod extending upwards into the sandstone discharge cavity is fixedly connected to the upper side end face of the auxiliary piston, a push plate positioned in the sandstone discharge cavity is fixedly connected to the lifting rod, the push plate is abutted against the lifting nut, an air cylinder is respectively and fixedly connected to the left side end face and the right side end face of the sandstone filtration tank, the sealing rotating plate is positioned between the two air cylinders, an air cavity is arranged in each air cylinder, and a through groove, the through groove is communicated with the sandstone discharge cavity, a piston is connected in the air cavity in a sliding mode, the piston is close to a sealing plate fixedly connected to the end face of one side of the sandstone discharge cavity, the sealing plate is located on the lower side of the rotating shaft and penetrates through the through groove, the sealing plate is connected with the through groove in a dynamic sealing mode, the sealing plate can extend into the sandstone discharge cavity, and the air cavity is communicated with the auxiliary air cavity and is connected with an air path pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010374638.7A CN111467870B (en) | 2020-05-06 | 2020-05-06 | Sandstone filtration device for petroleum exploitation |
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| CN202010374638.7A CN111467870B (en) | 2020-05-06 | 2020-05-06 | Sandstone filtration device for petroleum exploitation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112999723A (en) * | 2021-03-23 | 2021-06-22 | 林州市诚雨电子材料有限公司 | Copper-clad plate residue resource recycling device and use method thereof |
| CN115581958A (en) * | 2022-12-12 | 2023-01-10 | 江苏华尔威科技集团有限公司 | Sand removing device for crude oil single well |
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| CN111467870B (en) | 2021-03-09 |
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