CN114735843A - Acid mixed liquid treatment device for petroleum fracturing acidification - Google Patents
Acid mixed liquid treatment device for petroleum fracturing acidification Download PDFInfo
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- CN114735843A CN114735843A CN202210252832.7A CN202210252832A CN114735843A CN 114735843 A CN114735843 A CN 114735843A CN 202210252832 A CN202210252832 A CN 202210252832A CN 114735843 A CN114735843 A CN 114735843A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/002—Nozzle-type elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
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Abstract
The invention discloses an acidic mixed liquid treatment device for petroleum fracturing acidification, which comprises a reaction tank, wherein a liquid inlet is formed in the outer wall of a tank body, which is close to the top of the reaction tank, and a first feeding pipe and a second feeding pipe are arranged at the top of the reaction tank in a penetrating manner; the stirring shaft penetrates from the top of the reaction tank and extends to the bottom inside the reaction tank, and a plurality of stirring rods are uniformly arranged on the outer wall of the shaft at the upper part of the stirring shaft; a plurality of sidewall scrapers; the installation sleeve evenly is equipped with a plurality of spray lances along the circumferencial direction on its outer wall, and first filling tube extends to inside connecting hose and the sealed intercommunication of some spray lances of passing through of retort, and the second filling tube extends to inside connecting hose and the sealed intercommunication of another part spray lance of passing through of retort. The device of the invention accelerates the reaction rate of each reaction in the negative pressure tank for carrying out reaction treatment on the acid mixed solution, improves the treatment efficiency of the acid solution, and can realize the removal of the sludge deposited on the side wall of the reaction tank after coagulation sedimentation reaction in the reaction tank.
Description
Technical Field
The invention relates to the technical field of acid mixed liquid treatment, in particular to an acid mixed liquid treatment device for petroleum fracturing acidification.
Background
In the process of oil and gas exploitation, in order to increase the seepage capability of oil and gas and improve the yield of oil and gas, the bottom layer of exploitation needs to be subjected to fracturing acidification, called acid fracturing for short. When in acid fracturing, the acid mixed liquor is used as fracturing fluid under the condition that the pressure is higher than the fracture pressure of a stratum, fracturing without adding a propping agent is carried out, and the wall surface of a crack is corroded into an uneven surface by virtue of the corrosion action of the acid mixed liquor, so that the wall surface of the crack cannot be completely closed after the pump is stopped for pressure relief, therefore, the fracturing fluid has higher flow conductivity and obvious effect on recovering and improving the production capacity of an oil well.
After acid fracturing, acid mixed liquor can flow back to an oil well, the mixed liquor formed by oil fracturing acidification is acidic, is directly discharged to pollute surrounding rivers and soil, and simultaneously contains a large amount of impurities such as sand grains and the like to influence subsequent treatment, so the acid mixed liquor after fracturing acidification needs to be treated, in the treatment process of the acid mixed liquor, the acid neutralization and coagulation reaction need to be carried out on the mixed liquor, sediment generated in the coagulation reaction can be attached to the inner wall of a container, the volume of the container for reaction is large, and the sediment on the inner wall of the container is difficult to clean up by manpower.
Disclosure of Invention
The invention aims to provide an acid mixed liquid treatment device for petroleum fracturing acidification, which is used for solving the problems in the background technology.
The invention provides an acidic mixed liquid treatment device for petroleum fracturing acidification, which comprises:
a liquid inlet is arranged on the outer wall of the tank body close to the top of the reaction tank, and a first feeding pipe and a second feeding pipe are arranged at the top of the reaction tank in a penetrating manner;
the stirring shaft penetrates from the top of the reaction tank and extends to the bottom inside the reaction tank, the top of the stirring shaft is in transmission connection with an output shaft of a stirring motor arranged on the reaction tank, and a plurality of stirring rods are uniformly arranged on the outer wall of a shaft at the upper part of the stirring shaft;
the side wall scrapers are respectively abutted against the inner wall of the reaction tank, are positioned above the bottom in the reaction tank, and are respectively fixedly connected with the outer shaft wall at the lower part of the stirring shaft through connecting rods;
the installation sleeve is sleeved on the stirring shaft and fixedly connected with the top of the reaction tank, a plurality of spray rods are uniformly arranged on the outer wall of the installation sleeve along the circumferential direction, the first feeding pipe extends into the reaction tank and is in sealed communication with one part of the spray rods through a connecting hose, and the second feeding pipe extends into the reaction tank and is in sealed communication with the other part of the spray rods through a connecting hose;
a liquid outlet pipe is arranged on the side wall of the reaction tank close to the top of the side wall scraper, and a slag discharging pipe is arranged on the side wall close to the bottom of the side wall scraper.
Preferably, a gap exists between the inner wall of the mounting sleeve and the outer wall of the stirring shaft;
one ends of the spray rods, which are far away from the mounting sleeve, are inclined downwards;
a plurality of spray heads are uniformly arranged on the spray rod;
two spray bars which are adjacent at random, one spray bar is connected with the first feed pipe in a sealing way through a connecting hose, and the other spray bar is connected with the second feed pipe in a sealing way through a connecting hose
Preferably, bottom wall scrapers which are abutted against the bottom wall in the reaction tank are respectively arranged on the connecting rods which are close to the bottom of the reaction tank;
the side wall scraper and the bottom wall scraper are both made of high-temperature-resistant and corrosion-resistant plastics.
Preferably, a pump is arranged on the liquid outlet pipe;
the liquid outlet pipe is connected with the liquid inlet end of the filter tank in a sealing mode, and the liquid outlet end of the filter tank is connected with an oil-water separator in a sealing mode.
Preferably, the inside annular mount pad that is equipped with of filter tank, the inner wall of annular mount pad is equipped with first filter screen, the lateral wall of annular mount pad and the inner wall sliding connection who filters the jar.
Preferably, the top of the filter tank is provided with an opening, an installation plate is arranged above the filter tank, and the installation plate is fixedly connected with the top of the filter tank through a support column arranged at the bottom of the installation plate;
the mounting panel upper portion both ends are equipped with first pivot, the second pivot of being connected with the upper surface rotation of mounting panel respectively, the stay cord that fixedly is equipped with respectively in first pivot, the second pivot pierces through the mounting panel with annular mount pad fixed connection.
Preferably, a third rotating shaft and a fourth rotating shaft which are rotatably connected with the upper surface of the mounting plate are arranged between the first rotating shaft and the second rotating shaft;
the third rotating shaft and the fourth rotating shaft are respectively and fixedly sleeved with gears in a meshing transmission way, and the third rotating shaft or the fourth rotating shaft is in transmission connection with an output shaft of a mobile driving motor arranged on the mounting plate;
the third rotating shaft is in transmission connection with the transmission wheels which are respectively fixedly sleeved on the first rotating shaft through a transmission belt, and the fourth rotating shaft is in transmission connection with the transmission wheels which are respectively fixedly sleeved on the second rotating shaft through a transmission belt.
Preferably, the height of the side wall scraper is one third of the height of the inner wall of the reaction tank.
Preferably, a controller is arranged on one side of the reaction tank;
the liquid outlet pipe and the slag outlet pipe are respectively provided with an electromagnetic valve;
the controller is electrically connected with the stirring motor, the pump, the oil-water separator, the mobile driving motor and the two electromagnetic valves respectively.
Preferably, two liquid outlet ends of the oil-water separator are respectively connected with an oil collecting tank and a liquid collecting tank in a sealing manner, and an outlet of the slag discharging pipe is connected with a sludge settling collecting bin.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the spray rods are respectively arranged in the reaction tank in a dispersion state, the first feeding pipe arranged at the top of the reaction tank is hermetically connected with one part of the spray rods through the connecting hose, and the second feeding pipe is hermetically connected with the other part of the spray rods through the connecting hose, so that the solution for neutralization reaction and the solution for coagulation reaction which are added into the reaction tank are more fully and uniformly added into the acidic mixed solution which needs to be treated in the reaction tank, the reaction rate in the reaction tank is accelerated, and the treatment efficiency is improved while the acidic mixed solution is fully treated.
In addition, the stirring shaft is arranged in the reaction tank, the upper part of the stirring shaft is connected with the stirring rod, and the lower part of the stirring shaft is connected with the side wall scraper, so that the reaction rate of each reaction in the reaction tank is further improved by stirring during the reaction, and the sludge deposited on the side wall of the reaction tank after the coagulation sedimentation reaction in the reaction tank can be removed.
Finally, the invention realizes the fine filtration of the reacted mixed solution by arranging the filter tank connected with the reaction tank through the liquid outlet pipe, and is beneficial to the subsequent oil-liquid separation treatment.
The invention realizes the comprehensive treatment of the acid mixed liquid, and solves the problems that the acid mixed liquid generated after the fracturing acidification is carried out by the traditional device is not treated fully and the sediments in the reaction container are difficult to remove.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an acidic mixed liquid treatment device for fracture acidizing of petroleum according to the present invention;
FIG. 2 is a schematic diagram of a spraying rod distribution side view structure of an acidic mixed liquid treatment device for petroleum fracture acidizing provided by the invention;
fig. 3 is a schematic partial top view of an acidic mixed liquid treatment device for fracture acidizing of petroleum according to the present invention.
Description of the reference numerals:
1-a reaction tank, 2-a stirring shaft, 3-a stirring motor, 4-a side wall scraper, 5-a mounting sleeve, 6-a connecting hose, 7-a pump, 8-an oil-water separator, 9-an oil collecting tank, 10-a filtering tank, 11-a bottom wall scraper, 12-an annular mounting seat, 13-a first filter screen, 14-a mounting plate, 16-a controller, 18-an electromagnetic valve, 19-a liquid collecting tank, 20-a sludge collecting bin, 101-a liquid inlet, 102-a first feeding pipe, 103-a second feeding pipe, 104-a liquid outlet pipe, 105-a slag outlet pipe, 201-a stirring rod, 401-a connecting rod, 501-a spray rod, 502-a spray head, 1501-a first rotating shaft, 1502-a second rotating shaft, 1503-a third rotating shaft, 1504-fourth shaft, 1505-moving drive motor, 1506-pull cord.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, but it should be understood that the scope of the present invention is not limited by the specific embodiments.
Example 1
As shown in fig. 1 to 3, an acidic mixed liquid treatment apparatus for fracture acidizing of petroleum comprises:
a liquid inlet 101 is arranged on the outer wall of the tank body of the reaction tank 1 close to the top, and a first feeding pipe 102 and a second feeding pipe 103 are arranged at the top in a penetrating way;
the stirring shaft 2 penetrates from the top of the reaction tank 1 and extends to the bottom inside the reaction tank 1, the top of the stirring shaft is in transmission connection with an output shaft of a stirring motor 3 arranged on the reaction tank 1, and a plurality of stirring rods 201 are uniformly arranged on the outer wall of a shaft at the upper part of the stirring shaft;
the side wall scrapers 4 are respectively abutted against the inner wall of the reaction tank 1 and positioned above the bottom in the reaction tank 1, and are respectively fixedly connected with the outer shaft wall at the lower part of the stirring shaft 2 through connecting rods 401;
the installation sleeve 5 is sleeved on the stirring shaft 2 and fixedly connected with the top of the reaction tank 1, a plurality of spray rods 501 are uniformly arranged on the outer wall of the installation sleeve along the circumferential direction, the first feeding pipe 102 extends into the reaction tank 1 and is in sealed communication with one part of the spray rods 501 through a connecting hose 6, and the second feeding pipe 103 extends into the reaction tank 1 and is in sealed communication with the other part of the spray rods 501 through a connecting hose 6;
a liquid outlet pipe 104 is arranged on the side wall of the reaction tank 1 close to the top of the side wall scraper 4, a slag outlet pipe 105 is arranged on the side wall close to the bottom of the side wall scraper 4, a pump 7 is arranged on the liquid outlet pipe 104, and electromagnetic valves 18 are respectively arranged on the liquid outlet pipe 104 and the slag outlet pipe 105;
the liquid outlet pipe 104 is hermetically connected with the liquid inlet end of the filter tank 10, the liquid outlet end of the filter tank 10 is hermetically connected with an oil-water separator 8, two liquid outlet ends of the oil-water separator 8 are respectively hermetically connected with an oil receiving tank 9 and a liquid collecting tank 19, and the outlet of the slag outlet pipe 105 is connected with a sludge settling collecting bin 20.
A gap is formed between the inner wall of the mounting sleeve 5 and the outer wall of the stirring shaft 2.
One ends of the spray rods 501, which are far away from the mounting sleeve 5, are all inclined downwards;
a plurality of spray heads 502 are uniformly arranged on the spray rod 501;
any two adjacent spray bars 501, one of which is connected with the first filling pipe 102 in a sealing manner through the connecting hose 6, and the other of which is connected with the second filling pipe 103 in a sealing manner through the connecting hose 6.
When the device is used, the acid mixed solution after fracturing and acidizing is injected into the reaction tank 1 through the liquid inlet 101, the alkaline solution for neutralizing the acid mixed solution is added into the reaction tank 1 through the first feeding pipe 102, and in addition, the coagulant for coagulating and precipitating the mixed solution is diluted into a solution and then added into the reaction tank 1 through the second feeding pipe 103.
When alkaline solution and coagulant dilute solution enter the first feeding pipe 102 and the second feeding pipe 103 respectively, the first feeding pipe 102 and the second feeding pipe 103 are connected with the spray rods 501 in a sealing mode through the connecting hoses 6 respectively, so that the alkaline solution and coagulant dilute solution can be sprayed out from the spray nozzles 502 on the different spray rods 501 respectively, the spray rods 501 in the device are distributed in a dispersing mode along the center of the reaction tank 1, and each spray rod 501 is provided with a plurality of spray nozzles, so that the alkaline solution and coagulant solution can be uniformly added into the acidic mixed solution through the spray rods 501 in the device, and the speed of neutralization reaction in the reaction tank 1 and the speed of coagulation and precipitation reaction in the reaction tank 1 can be accelerated.
In practical application, in order to enable the alkaline solution, the coagulant dilute solution and the acidic mixed solution to be fused and reacted more sufficiently, any two adjacent spray bars 501 may be connected with the first feeding pipe 102 through the connecting hose 6 in a sealing manner, and the other two adjacent spray bars 501 may be connected with the second feeding pipe 103 through the connecting hose 6 in a sealing manner, in this embodiment, eight spray bars 501 are provided, wherein four spray bars 501 are connected with the first feeding pipe 102 through the connecting hose 6 in a sealing manner, and the other four spray bars 501 are connected with the second feeding pipe 103 through the connecting hose 6 in a sealing manner.
In addition, in order to make the reaction between the alkaline solution and the dilute coagulant and the acidic mixed solution more sufficient, stirring can be performed by a stirring shaft 2 provided in the reaction tank 1.
Rotate through driving agitator motor 3 and drive (mixing) shaft 2 and rotate, have the clearance because of between the inner wall of the installation sleeve 5 in this device and the outer wall of (mixing) shaft 2, then when (mixing) shaft 2 rotates, installation sleeve 5 can not lead to the fact the hindrance to the rotation of (mixing) shaft 2.
When the stirring shaft 2 rotates, the stirring rod 201 positioned on the upper part of the stirring shaft 2 accelerates the reaction rate of the alkaline solution, the coagulant dilute solution and the acidic mixed solution, and the side wall scraper 4 positioned on the bottom in the reaction tank 1 and connected with the stirring shaft 2 through the connecting rod 401 plays a role in stirring at this time, so that the reaction of the alkaline solution, the coagulant dilute solution and the acidic mixed solution is facilitated.
After the neutralization reaction and coagulation reaction in the reaction tank 1 are finished, the mixed solution in the reaction tank 1 can be settled for a period of time, after full settlement, precipitates generated in the reaction tank 1 can be accumulated at the bottom of the reaction tank 1, at the moment, the electromagnetic valve 18 and the pump 7 on the liquid outlet pipe 104 can be controlled to be opened, so that the mixed solution in the reaction tank 1 enters the filter tank 10, the treated mixed solution is filtered again by the filter tank 10, the filtered mixed solution enters the oil-water separator 8, a small amount of oil contained in the mixed solution can be separated by the oil-water separator 8, a small amount of oil in the separated mixed solution enters the oil collecting tank 9, and the aqueous solution enters the liquid collecting tank 19. When the mixed liquid in the reaction tank 1 is pumped out, the electromagnetic valve 18 on the slag outlet pipe 105 is controlled to be opened, so that the sludge in the reaction tank 1 is discharged out through the slag outlet pipe 105 and enters the sludge collection bin 20.
Example 2
As shown in fig. 1-3, the connecting rods 401 near the bottom of the reaction tank 1 are respectively provided with a bottom wall scraper 11 which is abutted against the inner bottom wall of the reaction tank 1, and the side wall scraper 4 and the bottom wall scraper 11 are both made of high temperature resistant and corrosion resistant plastics. By providing the bottom wall scraper 11 on the connecting rod 401 near the bottom of the reaction tank 1, the bottom wall scraper 11 can sufficiently remove the sediment attached to the bottom wall of the reaction tank 1.
The reaction in the reactor 1 is exothermic, and in order to avoid the acidic mixed liquid in the reactor 1 from corroding the side wall scraper 4 and the bottom wall scraper 11, the side wall scraper 4 and the bottom wall scraper 11 may be made of high temperature resistant and corrosion resistant plastics, specifically polyphenylene sulfide PPS, polyetheretherketone PEEK, polysulfone PSU, fluoroplastic PTFE/FEP/ETFE/PVDF/PFA, polyimide PPA, liquid crystal polymer LCP, etc.
Example 3
As shown in fig. 1-3, an annular mounting seat 12 is provided inside the filtering tank 10, a first filter screen 13 is provided on an inner wall of the annular mounting seat 12, and an outer side wall of the annular mounting seat 12 is slidably connected to an inner wall of the filtering tank 10.
The top of the filter tank 10 is an opening, an installation plate 14 is arranged above the opening, and the installation plate 14 is fixedly connected with the top of the filter tank 10 through a support column 15 arranged at the bottom of the installation plate;
the two ends of the upper part of the mounting plate 14 are respectively provided with a first rotating shaft 1501 and a second rotating shaft 1502 which are rotatably connected with the upper surface of the mounting plate 14, and pull ropes 1506 which are respectively fixedly arranged on the first rotating shaft 1501 and the second rotating shaft 1502 penetrate through the mounting plate 14 and are fixedly connected with the annular mounting base 12.
A third rotating shaft 1503 and a fourth rotating shaft 1504 which are rotatably connected with the upper surface of the mounting plate 14 are arranged between the first rotating shaft 1501 and the second rotating shaft 1502;
the third rotating shaft 1503 and the fourth rotating shaft 1504 are respectively and fixedly connected with gears which are fixedly sleeved on the third rotating shaft 1503 and the fourth rotating shaft 1504 in a meshing transmission manner, and the third rotating shaft 1503 or the fourth rotating shaft 1504 are in a transmission connection with an output shaft of a mobile driving motor 1505 arranged on the mounting plate 14;
the third rotating shaft 1503 is in transmission connection with a transmission wheel fixedly sleeved on the first rotating shaft 1501, and the fourth rotating shaft 1504 is in transmission connection with a transmission wheel fixedly sleeved on the second rotating shaft 1502.
Since some impurities may be present in the mixed solution after the reaction in the reaction tank 1, the mixed solution after the reaction in the reaction tank 1 is filtered by the filter tank 10.
When a lot of filtered impurities are deposited on the first filter 13 in the filter tank 10, the mobile driving motor 1505 can be controlled to rotate, so as to drive the third rotating shaft 1503 or the fourth rotating shaft 1504 which is in transmission connection with the output shaft of the mobile driving motor 1505 to rotate.
When the output shaft of the moving driving motor 1505 is in transmission connection with the third rotating shaft 1503, the moving driving motor 1505 rotates to drive the third rotating shaft 1503 to rotate, and the third rotating shaft 1503 and the fourth rotating shaft 1504 are in meshing transmission through gears, so that the third rotating shaft 1503 and the fourth rotating shaft 1504 respectively rotate and the rotating directions of the third rotating shaft 1503 and the fourth rotating shaft 1504 are opposite.
When the third rotation shaft 1503 rotates clockwise, the fourth rotation shaft 1504 rotates counterclockwise. The third rotating shaft 1503 is in transmission connection with the driving wheels respectively fixedly sleeved on the first rotating shaft 1501 through a transmission belt, so that the first rotating shaft 1501 rotates clockwise, the fourth rotating shaft 1504 is in transmission connection with the fourth rotating shaft 1504 through the driving wheels respectively fixedly sleeved on the second rotating shaft 1502, and the second rotating shaft 1502 rotates counterclockwise.
When the first rotating shaft 1501 rotates clockwise, the pull rope 1506 can be retracted and wound on the first rotating shaft 1501, when the second rotating shaft 1502 rotates counterclockwise, the pull rope 1506 can be retracted and wound on the second rotating shaft 1502, and the two sides pull the pull rope 1506 to retract at the same time, so that the annular mounting seat 12 can move upwards, so that the first filter screen 13 on the annular mounting seat 12 can move upwards, and when the first filter screen 13 is moved upwards, the cleaning of attached sediments on the first filter screen 13 is facilitated.
Example 4
As shown in fig. 1 to 3, the height of the side wall scraper 4 is one third of the height of the inner wall of the reaction tank 1, so that the power consumption of the stirring motor 3 during the stirring driving process is reduced while the side wall scraper 4 scrapes off the deposits attached to the side wall of the reaction tank 1.
Example 5
As shown in fig. 1 to 3, a controller 16 is provided at one side of the reaction tank 1;
the controller 16 is electrically connected to the stirring motor 3, the pump 7, the oil-water separator 8, the movement driving motor 1505, and the two electromagnetic valves 18, respectively. The controller 16 is used for controlling various electric devices in the device, so that the device is more convenient to operate and use.
Finally, the description is as follows: the above disclosure is only one specific embodiment of the present invention, however, the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. The utility model provides an acid mixed liquid processing apparatus for oil fracture acidizing which characterized in that includes:
a liquid inlet (101) is formed in the outer wall of the reaction tank (1) close to the top of the reaction tank, and a first feeding pipe (102) and a second feeding pipe (103) penetrate through the top of the reaction tank;
the stirring shaft (2) penetrates from the top of the reaction tank (1) and extends to the bottom inside the reaction tank (1), the top of the stirring shaft is in transmission connection with an output shaft of a stirring motor (3) arranged on the reaction tank (1), and a plurality of stirring rods (201) are uniformly arranged on the outer wall of a shaft at the upper part of the stirring shaft;
the side wall scrapers (4) are respectively abutted against the inner wall of the reaction tank (1), are positioned above the bottom in the reaction tank (1), and are respectively fixedly connected with the outer shaft wall at the lower part of the stirring shaft (2) through connecting rods (401);
the mounting sleeve (5) is sleeved on the stirring shaft (2) and fixedly connected with the top of the reaction tank (1), a plurality of spray rods (501) are uniformly arranged on the outer wall of the mounting sleeve along the circumferential direction, the first feeding pipe (102) extends into the reaction tank (1) and is hermetically communicated with one part of the spray rods (501) through a connecting hose (6), and the second feeding pipe (103) extends into the reaction tank (1) and is hermetically communicated with the other part of the spray rods (501) through a connecting hose (6);
a liquid outlet pipe (104) is arranged on the side wall of the reaction tank (1) close to the top of the side wall scraper (4), and a slag outlet pipe (105) is arranged on the side wall close to the bottom of the side wall scraper (4).
2. The apparatus of claim 1 for treating an acidic mixed solution for fracture acidizing of petroleum, wherein: a gap is formed between the inner wall of the mounting sleeve (5) and the outer wall of the stirring shaft (2);
one ends of the spray rods (501) far away from the mounting sleeve (5) are all inclined downwards;
a plurality of spray heads (502) are uniformly arranged on the spray rod (501);
and one of any two adjacent spray rods (501) is hermetically connected with the first feeding pipe (102) through a connecting hose (6), and the other one is hermetically connected with the second feeding pipe (103) through a connecting hose (6).
3. The apparatus of claim 1 for treating an acidic mixed liquid for fracture acidizing of petroleum, wherein: a bottom wall scraper (11) which is abutted against the inner bottom wall of the reaction tank (1) is respectively arranged on the connecting rod (401) which is close to the bottom of the reaction tank (1);
the side wall scraper (4) and the bottom wall scraper (11) are both made of high-temperature-resistant and corrosion-resistant plastics.
4. The apparatus of claim 1 for treating an acidic mixed liquid for fracture acidizing of petroleum, wherein: a pump (7) is arranged on the liquid outlet pipe (104);
the liquid outlet pipe (104) is connected with the liquid inlet end of the filter tank (10) in a sealing manner, and the liquid outlet end of the filter tank (10) is connected with an oil-water separator (8) in a sealing manner.
5. The apparatus of claim 4, wherein the apparatus comprises: filter jar (10) inside and be equipped with annular mount pad (12), the inner wall of annular mount pad (12) is equipped with first filter screen (13), the lateral wall of annular mount pad (12) and the inner wall sliding connection who filters jar (10).
6. The apparatus of claim 5 for treating an acidic mixed liquid for fracture acidizing of petroleum, wherein: the top of the filtering tank (10) is provided with an opening, an installation plate (14) is arranged above the filtering tank, and the installation plate (14) is fixedly connected with the top of the filtering tank (10) through a support column (15) arranged at the bottom of the installation plate;
mounting panel (14) upper portion both ends are equipped with respectively and rotate first pivot (1501), second pivot (1502) of being connected with the upper surface of mounting panel (14), fixed stay cord (1506) that are equipped with respectively on first pivot (1501), the second pivot (1502) pierce through mounting panel (14) with annular mount pad (12) fixed connection.
7. The apparatus of claim 6, wherein the apparatus comprises: a third rotating shaft (1503) and a fourth rotating shaft (1504) which are rotatably connected with the upper surface of the mounting plate (14) are arranged between the first rotating shaft (1501) and the second rotating shaft (1502);
the third rotating shaft (1503) and the fourth rotating shaft (1504) are respectively and fixedly connected with gears which are sleeved in a meshing transmission manner, and the third rotating shaft (1503) or the fourth rotating shaft (1504) is in transmission connection with an output shaft of a mobile driving motor (1505) arranged on a mounting plate (14);
the third rotating shaft (1503) is in transmission connection with the transmission wheels respectively fixedly sleeved on the first rotating shaft (1501) through a transmission belt, and the fourth rotating shaft (1504) is in transmission connection with the transmission wheels respectively fixedly sleeved on the second rotating shaft (1502) through a transmission belt.
8. The apparatus of claim 1 for treating an acidic mixed solution for fracture acidizing of petroleum, wherein: the height of the side wall scraper (4) is one third of the height of the inner wall of the reaction tank (1).
9. The apparatus of claim 7, wherein the apparatus comprises: a controller (16) is arranged on one side of the reaction tank (1);
the liquid outlet pipe (104) and the slag outlet pipe (105) are respectively provided with an electromagnetic valve (18);
the controller (16) is electrically connected to the stirring motor (3), the pump (7), the oil-water separator (8), the movement driving motor (1505), and the two electromagnetic valves (18), respectively.
10. The apparatus of claim 4, wherein the apparatus comprises: two liquid outlet ends of the oil-water separator (8) are respectively connected with an oil collecting tank (9) and a liquid collecting tank (19) in a sealing manner, and an outlet of the slag outlet pipe (105) is connected with a sludge settling collecting bin (20).
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| CN202210252832.7A CN114735843B (en) | 2022-03-15 | 2022-03-15 | Acid mixed liquid treatment device for petroleum fracturing acidification |
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| CN202210252832.7A CN114735843B (en) | 2022-03-15 | 2022-03-15 | Acid mixed liquid treatment device for petroleum fracturing acidification |
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Cited By (1)
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| CN118109890A (en) * | 2024-04-25 | 2024-05-31 | 新邵辰州锑业有限责任公司 | Equipment and process for extracting iron from antimony-containing electrolyte |
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