CN211998934U

CN211998934U - Oil field sewage treatment plant

Info

Publication number: CN211998934U
Application number: CN202020566005.1U
Authority: CN
Inventors: 任家川; 杨旭东; 景斌; 陈朝岳
Original assignee: Sichuan Yiqian Petroleum Engineering Co ltd
Current assignee: Sichuan Yiqian Petroleum Engineering Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-24
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses an oil field sewage treatment plant, there are (mixing) shaft (11) through the coupling joint on the output shaft of power pack, (mixing) shaft (11) run through the bottom of box (1) and stretch into in box (1), and (mixing) shaft (11) are located the right side of swash plate (3), installs a plurality of blades (12) on (mixing) shaft (11), and blade (12) are located the below of swash plate (3) lower limb, air compressor machine (10) exit end is connected with outlet duct (13), and another port of outlet duct (13) runs through apron (2) and sets up and stretch into in box (1), and pipeline (14) that set up around this port department welding, pipeline (14) are located the left side of swash plate (3), and the right side of pipeline (14) and be provided with a plurality of nozzles (15) along its length direction. The utility model has the advantages that: the method improves the oil field sewage treatment efficiency, reduces the sewage treatment cost and has simple operation.

Description

Oil field sewage treatment plant

Technical Field

The utility model relates to an oil field sewage treatment's technical field, especially an oil field sewage treatment plant.

Background

In the process of oil production, transport and storage, the major natural companion of oil is water. According to the distribution of oil reservoirs, a special water injection well with a certain depth is drilled at a proper place to inject high-pressure water to a stratum to supplement energy, the stratum pressure is kept, and the crude oil is driven to be extracted from the oil well. Only 1 to 10 percent of the oil reservoir reserves can be produced by natural energy. To increase the subsequent recovery rate, water injection is started when the oil field is in the peak period. With the increase of the exploitation age of the oil field, the water content of the produced water liquid continuously rises, some blocks reach more than 90%, and the oil-containing sewage becomes the main water injection source of the oil field. When the oil field is injected with water, the oil field sewage is treated and then injected back into the stratum, and the sewage carries a large amount of mineral substances with complex components when passing through the stratum, wherein the main components comprise divalent calcium ions, divalent magnesium ions, ferric ions, bicarbonate ions, carbonate ions, sulfate ions, a small amount of crude oil, hydrogen sulfide, a large amount of organic impurities providing breeding environment for harmful bacteria and the like. The content of these substances varies slightly depending on the geological properties of different regions. If the sewage is directly injected into the stratum without being treated, the sewage can cause serious corrosion or scaling of a water injection pipe and an oil pumping pipe after certain chemical process, even hole corrosion or cracking and gradual blockage, and water injection and oil extraction cannot be realized, so that serious accidents of expensive oil pumping wells and water injection wells occur to scale in the stratum, the permeability of the stratum can be damaged, the stratum is blocked, namely scaling blockage is caused, and even the whole well is scrapped. Meanwhile, the unreasonable reinjection and discharge of the sewage can cause the ground equipment not to work normally, and can cause serious environmental pollution. Therefore, the method is particularly important for the purification treatment of the oil field sewage.

The existing treatment device for oilfield sewage comprises a tank body, a motor fixedly arranged at the top of the tank body, a stirring shaft is connected to an output shaft of the motor through a coupling, the stirring shaft extends into the tank body, a plurality of blades are arranged on the stirring shaft, and an inlet pipe and a medicament adding pipe are arranged at the top of the stirring tank. During operation, the workman lets in oil field sewage in jar internal through the import pipe, and the workman adds the pipe through the medicament afterwards and drops into a certain amount of medicament to jar internal, opens the motor simultaneously, and the motor drives the (mixing) shaft and rotates, and the (mixing) shaft drives the blade and rotates, and oil field sewage and medicament are mixd to the blade, and after medicament and oil field sewage mixed, greasy dirt and harmful ion in the oil field sewage were detached to the medicament, after a period of stirring, can accomplish oil field sewage's processing.

However, although the oil field sewage treatment device can complete the purification of the oil field sewage, the following defects still exist: 1. Because the viscosity of the oil field sewage is large and the fluidity is poor, the motor needs to consume large power to drive the blades to rotate, and the cost for treating the sewage is increased. 2. Because the viscosity of the oil field sewage is larger and the fluidity is poor, the blades need to be stirred for a long time to uniformly mix the medicament and the oil field sewage, and the treatment efficiency of the oil field sewage is further reduced. Therefore, an oilfield sewage treatment device for improving oilfield sewage treatment efficiency is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, improve oil field sewage treatment efficiency, reduce sewage treatment cost, easy operation's oil field sewage treatment plant.

The purpose of the utility model is realized through the following technical scheme: an oilfield sewage treatment device comprises a box body and a cover plate fixedly arranged at the top of the box body, wherein an inclined plate which inclines downwards rightwards is fixedly arranged in the box body, guard plates A are welded on the front side and the rear side of the inclined plate on the inclined plane of the inclined plate, a light plate which is positioned right above the inclined plate is fixedly arranged at the bottom of the cover plate, guard plates B are welded on the front side and the rear side of the light plate on the top surface of the light plate, a plurality of material leakage holes are formed in the inclined plane of the light plate, an inlet pipe and a medicament adding pipe are welded on the cover plate, a lower port of the medicament adding pipe extends into the box body and is positioned right above the light plate, a lower port of the inlet pipe extends into the box body and is positioned right above the inclined plate, the inlet pipe is positioned at the left side of the light plate, the treatment device also comprises, the (mixing) shaft runs through the bottom of box and stretches into in the box, and the (mixing) shaft is located the right side of swash plate, installs a plurality of blades on the (mixing) shaft, and the blade is located the below of swash plate lower limb, the air compressor machine exit end is connected with the outlet duct, and another port of outlet duct runs through the apron setting and stretches into in the box, and the welding of this port department has the pipeline of setting from beginning to end, and the pipeline is located the left side of swash plate, and the right side of pipeline just is provided with a plurality of nozzles along its length direction, and the.

The light plate is arranged in parallel to the inclined plate.

A plurality of brackets are welded on the top surfaces of the two guard plates B, and the other ends of the brackets are welded on the bottom surface of the cover plate.

The welding of the bottom of the box body is provided with a frame, and the inclined plate is welded at the top of the frame.

The power unit comprises a motor and a speed reducer, wherein the motor and the speed reducer are both supported on the ground, an output shaft of the motor is connected with an input shaft of the speed reducer through a coupling, an output shaft is arranged at the top of the speed reducer, and a stirring shaft is connected to the output shaft.

And a plurality of supporting legs supported on the ground are welded at the bottom of the box body.

The bottom of the inlet pipe is welded with a conical cover I communicated with the inlet pipe, and the conical cover I is located right above the inclined plane of the inclined plate.

The bottom of the medicament adding pipe is welded with a conical cover II communicated with the medicament adding pipe, and the conical cover II is positioned right above the inclined plane of the light plate.

The top welding of import pipe has funnel I, the top welding of medicament adds the pipe has funnel II.

The treatment device further comprises a water pump, wherein a water pumping hole of the water pump is connected with a liquid pumping pipe, and the liquid pumping pipe penetrates through the side wall of the box body and extends into the box body.

The utility model has the advantages of it is following: the utility model discloses compact structure, improvement oil field sewage treatment efficiency, reduction sewage treatment cost, easy operation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic main section view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion I of FIG. 2;

in the figure, 1-box, 2-cover plate, 3-inclined plate, 4-protection plate A, 5-optical plate, 6-protection plate B, 7-leakage hole, 8-inlet pipe, 9-medicament adding pipe, 10-air compressor, 11-stirring shaft, 12-blade, 13-outlet pipe, 14-pipeline, 15-outlet nozzle, 16-bracket, 17-frame, 18-motor, 19-reducer, 20-supporting leg, 21-conical cover I, 22-conical cover II, 23-funnel I, 24-funnel II, 25-water pump and 26-liquid pumping pipe.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in fig. 1 to 4, an oil field sewage treatment device comprises a box body 1 and a cover plate 2 fixedly arranged at the top of the box body 1, wherein a plurality of support legs 20 supported on the ground are welded at the bottom of the box body 1, an inclined plate 3 which inclines downwards rightwards is fixedly arranged in the box body 1, guard plates A4 are welded at the front side and the rear side of the inclined plate 3 on the inclined surface of the inclined plate 3, a light plate 5 positioned right above the inclined plate 3 is fixedly arranged at the bottom of the cover plate 2, the light plate 5 is arranged in parallel with the inclined plate 3, the light plate 5 inclines downwards rightwards, guard plates B6 are welded at the front side and the rear side of the top surface of the light plate 5 on the top surface of the light plate 5, a plurality of material leaking holes 7 are arranged on the inclined surface of the light plate 5, an inlet pipe 8 and a medicament adding pipe 9 are welded on the cover plate 2, the lower port of the medicament adding pipe 9 extends into the, import pipe 8 is located the left side of worn-out fur 5, and this processing apparatus still includes air compressor machine 10 and sets up in the power pack of box 1 below, there is (mixing) shaft 11 through the coupling joint on power pack's the output shaft, (mixing) shaft 11 runs through the bottom of box 1 and stretches into in box 1, and (mixing) shaft 11 is located the right side of swash plate 3, installs a plurality of blades 12 on the (mixing) shaft 11, and blades 12 are located the below of 3 lower limb of swash plate, in this embodiment power pack includes motor 18 and reduction gear 19, motor 18 and reduction gear 19 all support subaerial, and motor 18's output shaft and reduction gear 19's input shaft pass through the coupling joint, and reduction gear 19's top is provided with output shaft and is. The exit end of air compressor machine 10 is connected with outlet duct 13, and another port of outlet duct 13 runs through the setting of apron 2 and stretches into in box 1, and this port department welding has pipeline 14 that sets up from beginning to end, and pipeline 14 is located the left side of swash plate 3, and pipeline 14's right side just is provided with a plurality of nozzles 15 along its length direction, and nozzle 15 sets up towards the inclined plane of swash plate 3.

A plurality of brackets 16 are welded to the top surfaces of the two cover plates B6, and the other ends of the brackets 16 are welded to the bottom surface of the cover plate 2. The welding of the bottom of box 1 has frame 17, swash plate 3 welds in the top of frame 17. The bottom of the inlet pipe 8 is welded with a conical cover I21 communicated with the inlet pipe, the conical cover I21 is positioned right above the inclined plane of the inclined plate 3, the bottom of the medicament adding pipe 9 is welded with a conical cover II22 communicated with the medicament adding pipe, and the conical cover II22 is positioned right above the inclined plane of the light plate 5. The top of the inlet pipe 8 is welded with a funnel I23, and the top of the medicament adding pipe 9 is welded with a funnel II 24. The treatment device further comprises a water pump 25, a liquid pumping pipe 26 is connected to a water pumping hole of the water pump 25, and the liquid pumping pipe 26 penetrates through the side wall of the box body 1 and extends into the box body 1.

The working process of the utility model is as follows:

s1, a worker turns on the motor 18, the torque of the motor 18 is transmitted to the stirring shaft 11 after being reduced by the speed reducer 19, and the stirring shaft 11 drives the blades 12 to rotate; a worker turns on the air compressor 10, pressure gas generated by the air compressor 10 is finally sprayed out from the air outlet nozzle 15 through the air outlet pipe 13 and the pipeline 14, and the sprayed pressure gas acts on the inclined surface of the inclined plate 3;

s2, injecting oilfield sewage into the inlet pipe 8 through the funnel I23 by a worker, enabling the oilfield sewage to sequentially pass through the inlet pipe 8 and the conical cover I21 under the gravity to fall onto the inclined plane of the inclined plate 3, pushing the viscous oilfield sewage to flow downwards by pressure gas sprayed from the gas outlet nozzle 15, simultaneously injecting a medicament into the medicament adding pipe 9 through the funnel II24 by the worker, enabling the medicament to sequentially pass through the medicament adding pipe 9 and the conical cover II22 under the gravity to fall onto the inclined plane of the light plate 5, enabling the medicament to pass through the leakage hole 7 in the downward flowing process to fall into the oilfield sewage flowing on the inclined plate 3, realizing the mixing of the medicament and the oilfield sewage, and removing oil stains and harmful ions in the oilfield sewage by the medicament;

s3, the mixed liquid in the step S2 flows out from the lower edge of the inclined plate 3, the flowing mixed liquid enters the stirring area of the blades 12, and the rotating blades 12 stir and mix the mixed liquid to increase the contact area of the medicament and the oil field sewage, so that harmful ions and oil stains in the oil field sewage are thoroughly treated.

S4, the water pump 25 is turned on, and the water pump 25 pumps the purified water to the outside of the tank 1 through the liquid pumping pipe 26.

Because oil field sewage mixes on the inclined plane of swash plate 3 inclined plane in advance with the medicament, mixes again afterwards under the stirring of blade 12, has realized twice and has mixed, and the medicament is in the dispersed state and adds oil field sewage, therefore has increased the area of contact of medicament and oil field sewage, and then very big shortening medicament and oil field sewage misce bene consumed time to very big improvement oil field sewage's treatment effeciency. In addition, the blades 12 are positioned below the lower edge of the swash plate 3, so the blades 12 directly agitate the oilfield sewage in a flowing state, i.e., the oilfield sewage is agitated by the blades in a dispersed state, and thus the motor does not need to consume large power for agitation, thereby greatly reducing the cost of sewage treatment.

Claims

1. The utility model provides an oil field sewage treatment plant which characterized in that: the novel chemical spraying device comprises a box body (1) and a cover plate (2) fixedly arranged at the top of the box body (1), wherein an inclined plate (3) which inclines downwards rightwards is fixedly arranged in the box body (1), guard plates A (4) are welded on the front side and the rear side of the inclined plate (3) on the inclined plane of the inclined plate (3), a light plate (5) which is positioned right above the inclined plate (3) is fixedly arranged at the bottom of the cover plate (2), the light plate (5) is inclined downwards rightwards, guard plates B (6) are welded on the front side and the rear side of the top surface of the light plate (5) on the top surface of the light plate (5), a plurality of material leaking holes (7) are formed in the inclined plane of the light plate (5), an inlet pipe (8) and a chemical adding pipe (9) are welded on the cover plate (2), a lower port of the chemical adding pipe (9) extends into the box body (1) and is positioned right above the light, the inlet pipe (8) is positioned on the left side of the light plate (5), the treatment device further comprises an air compressor (10) and a power unit arranged below the box body (1), an output shaft of the power unit is connected with a stirring shaft (11) through a coupler, the stirring shaft (11) penetrates through the bottom of the box body (1) and extends into the box body (1), the stirring shaft (11) is positioned on the right side of the inclined plate (3), a plurality of blades (12) are installed on the stirring shaft (11), the blades (12) are positioned below the lower edge of the inclined plate (3), the outlet end of the air compressor (10) is connected with an air outlet pipe (13), the other port of the air outlet pipe (13) penetrates through the cover plate (2) and extends into the box body (1), the port is welded with a pipeline (14) arranged in the front and back, the pipeline (14) is positioned on the left side of the inclined plate (3), the right side of the pipeline (, the air outlet nozzle (15) is arranged towards the inclined plane of the inclined plate (3).

2. The oilfield sewage treatment device of claim 1, wherein: the light plate (5) is arranged in parallel to the inclined plate (3).

3. The oilfield sewage treatment device of claim 1, wherein: a plurality of brackets (16) are welded on the top surfaces of the two guard plates B (6), and the other ends of the brackets (16) are welded on the bottom surface of the cover plate (2).

4. The oilfield sewage treatment device of claim 1, wherein: the bottom of the box body (1) is welded with a rack (17), and the inclined plate (3) is welded on the top of the rack (17).

5. The oilfield sewage treatment device of claim 1, wherein: the power unit comprises a motor (18) and a speed reducer (19), wherein the motor (18) and the speed reducer (19) are both supported on the ground, an output shaft of the motor (18) is connected with an input shaft of the speed reducer (19) through a coupler, and an output shaft are connected to the top of the speed reducer (19) through a stirring shaft (11).

6. The oilfield sewage treatment device of claim 1, wherein: the bottom of the box body (1) is welded with a plurality of supporting legs (20) supported on the ground.

7. The oilfield sewage treatment device of claim 1, wherein: the bottom of the inlet pipe (8) is welded with a conical cover I (21) communicated with the inlet pipe, and the conical cover I (21) is positioned right above the inclined plane of the inclined plate (3).

8. The oilfield sewage treatment device of claim 1, wherein: the bottom of the medicament adding pipe (9) is welded with a conical cover II (22) communicated with the medicament adding pipe, and the conical cover II (22) is positioned right above the inclined plane of the light plate (5).

9. The oilfield sewage treatment device of claim 1, wherein: the top of the inlet pipe (8) is welded with a funnel I (23), and the top of the medicament adding pipe (9) is welded with a funnel II (24).

10. The oilfield sewage treatment device of claim 1, wherein: the treatment device further comprises a water pump (25), a liquid pumping pipe (26) is connected to a water pumping opening of the water pump (25), and the liquid pumping pipe (26) penetrates through the side wall of the box body (1) and extends into the box body (1).