Produced water treatment device

Abstract

The utility model belongs to the technical field of produced water treatment, and particularly relates to a produced water treatment device which comprises a produced water treatment device main body, pipeline mixers are arranged on two sides of the produced water treatment device, a lifting pump is arranged on one side of each pipeline mixer, and the whole produced water treatment device main body is connected with a cable through a pipeline. Produced water is lifted into a micro-vortex reaction area from an adjusting tank through a lifting pump, PAC and PAM are fully mixed with the produced water through a pipeline mixer arranged on a water inlet pipe, and the micro-vortex reactor timely starts an aeration device to increase turbulent fluctuation of water flow and supply oxygen to improve flocculation reaction efficiency at the same time. Raw water fully reacts in the micro-vortex reaction area and then enters the oil removal sedimentation area through a water distribution plate and a water blocking plate, floating oil is removed through a floating oil collector, suspended solids are removed through a corrugated plate in a sedimentation mode, round holes are formed in wave crests and wave troughs of the corrugated plate so that oil droplets and sediments can be separated, and treated produced water enters a reuse water tank after being sterilized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to produced water treatment technical field, especially relate to a produced water treatment device. BACKGROUND

[0002] At present, most of the oil fields in China adopt water injection exploitation, and with the continuous development of oil fields, the water content of produced water is rising. At the same time, produced water is usually mixed with other sewage for treatment, and the composition of oilfield produced water is complex, which further increases the difficulty of reaching the reinjection standard of the effluent water quality;

[0003] The produced water treatment process generally includes physical method (gravity separation oil removal, air flotation method, filtration oil removal, membrane separation technology, etc.), chemical method (flocculation, corrosion inhibition, scale inhibition, sterilization, electrochemical method, etc.), biological method (biological membrane method, activated sludge method, etc.), usually two or three water treatment equipment is used to reach the effluent standard, common first stage treatment has gravity separation, flotation and centrifugal separation. Mainly remove floating oil and oil-wet solid, secondary treatment has filtration, coarse granulation, chemical treatment, etc., mainly break emulsion and remove dispersed oil, advanced treatment has ultrafiltration, activated carbon adsorption, biochemical treatment, etc., mainly remove dissolved oil;

[0004] However, the existing technology has the problems of insufficient flocculation reaction, insufficient combination of oil beads, high oil content in effluent, etc., which affect the effluent water quality. INVENTION CONTENTS

[0005] The utility model aims at providing a produced water treatment device to solve the above technical problems.

[0006] To achieve the above purpose, the specific technical scheme of the utility model of a produced water treatment device is as follows:

[0007] A produced water treatment device, comprising a produced water treatment device main body, the produced water treatment device is provided with a pipeline mixer on both sides, a lifting pump is arranged on one side of the pipeline mixer, two-stage micro-vortex reactors, lateral flow corrugated plates, floating oil collectors and effluent pipelines are sequentially arranged in the treatment device main body, and the whole produced water treatment device main body is connected with cables through pipelines.

[0008] The produced water treatment device main body comprises two-stage micro-vortex reactors, a porous water distribution plate is arranged on the other side of the two-stage micro-vortex reactors, a water collecting area is connected with the porous water distribution plate, a first water blocking baffle is arranged on the other side of the water collecting area, two-stage sedimentation areas are arranged on the other side of the first water blocking baffle, corrugated plates are arranged in the sedimentation areas, floating oil collectors are arranged above the sedimentation areas, and effluent areas are arranged on the other side of the sedimentation areas.

[0009] Further, the left side of the porous water distribution plate is provided with a treatment device flocculation reaction zone, the treatment device flocculation reaction zone adopts two-stage micro-vortex reactors, the bottom of the two-stage micro-vortex reactors is provided with an aeration device, a pipeline is arranged between the two-stage micro-vortex reactors, and the pipeline is connected to a sludge discharge pipeline.

[0010] Further, one side of the two-stage micro-vortex reactors is provided with a porous water distribution plate, and the other side of the porous water distribution plate is provided with a first water blocking baffle.

[0011] Further, one side of the first water blocking baffle is provided with a two-stage sedimentation zone, and the two-stage sedimentation zone is internally provided with a lateral flow corrugated plate.

[0012] Further, one side of the sedimentation zone is provided with a second water blocking baffle, the second water blocking baffle is provided with two layers, and the other side of the two layers of the second water blocking baffle is provided with a water outlet pipeline.

[0013] Further, the bottom of the produced water treatment device body is provided with a sludge discharge port, and the two sides of the produced water treatment device body are provided with pipeline mixers.

[0014] The utility model discloses the advantages are in:

[0015] The utility model discloses the advantages are in: BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0017] Fig. 2 It is the porous water distribution pipe structure schematic diagram of the utility model;

[0018] Fig. 3 It is the lateral flow corrugated plate structure schematic diagram of the utility model;

[0019] Marked explanation in the drawing: 1. the lift pump;2. pipeline mixer;3. micro-vortex reactor;4. reactor flush pipeline;5. porous water distribution pipe;6. first water blocking baffle;7. lateral flow corrugated plate;8. sludge discharge port;9. floating oil collector;10. second water blocking baffle;11. aeration device. DETAILED DESCRIPTION

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Example 1

[0023] like Figs. 1-3 As shown, a produced water treatment device includes a main body of the produced water treatment device. Pipe mixers 2 are provided on both sides of the produced water treatment device, and a booster pump 1 is provided on one side of the pipe mixer. Inside the main body of the treatment device, there are two-stage micro vortex reactors 3, lateral flow corrugated plates 7, oil floaters 9 and water outlet pipes arranged in sequence. The entire produced water treatment device is connected to cables through pipes.

[0024] The main body of the produced water treatment device includes a two-stage micro vortex reactor 3. A porous water distribution plate 5 is provided on the other side of the two-stage micro vortex reactor 3. The water collection area is connected to the porous water distribution plate 5. A first water-blocking baffle 6 is provided on the other side of the water collection area. A two-stage sedimentation area is provided on the other side of the first water-blocking baffle 6. A corrugated plate 7 is provided in the sedimentation area. An oil floater 9 is provided above the sedimentation area. A water outlet area is provided on the other side of the sedimentation area.

[0025] After collection, the oily wastewater is pumped into the pipeline mixer 2, where it reacts fully with PAC and PAM before entering the micro-vortex reactor 3. The reactor generates micro-cyclones, increasing the probability of collisions between smaller impurity particles in the raw water, resulting in co-current coagulation. At the same time, it increases the contact flocculation between impurities and sludge. The aeration device can supply oxygen to the reactor to further increase the reaction efficiency. After full reaction, the water flows evenly into the collection area through the porous water distribution plate, and then enters the sedimentation zone through the perforated water baffle. The water flows horizontally in a vortex pattern in the crests and troughs. At the same time, because the corrugated plate is oleophilic, the oil forms an oil film on the corrugated plate. As the water flows through, the oil film gradually thickens and eventually forms oil droplets that continuously accumulate and float to the surface through the round holes. The sediment is discharged from the round holes in the troughs. The flow velocity of the effluent is reduced when it passes through the baffle, and finally the effluent is discharged through the pipeline.

[0026] Example 2

[0027] like Figs. 1-3 As shown, the porous water distribution plate 5 has a flocculation reaction zone for the treatment device on the left side. The flocculation reaction zone of the treatment device adopts a two-stage micro vortex reactor 3. An aeration device is provided at the bottom of the two-stage micro vortex reactor 3. A pipe is provided between the two-stage micro vortex reactor 3 and the pipe is connected to the sludge discharge pipe.

[0028] The micro vortex reactor 3 is a porous hollow sphere. When water flows through the holes on the sphere, the flow of water increases, improving the flocculation reaction efficiency and reducing the reaction time. The flushing pipe 4 between the reactors can periodically flush the inside of the reactor.

[0029] The porous water distribution plate 5 can evenly distribute the water flow into the water collection area. The area where the perforated water blocking plate 6 on the right side contacts the corrugated plate 7 has round holes, while the remaining areas do not have holes, which facilitates the water flow to enter from the side of the corrugated plate 7 and increases the treatment efficiency of the floating oil sedimentation area.

[0030] The corrugated plate 7 has round holes at both the crests and troughs to facilitate the discharge of oil droplets and sediment.

[0031] The two-stage micro vortex reactor 3 is provided with a porous water distribution plate 5 on one side and a first water-blocking baffle 6 on the other side of the porous water distribution plate 5.

[0032] The first water-blocking baffle 6 has a two-stage sedimentation zone on one side, and a lateral flow corrugated plate 7 is provided inside the two-stage sedimentation zone.

[0033] The sedimentation zone is provided with a second water-blocking baffle 10 on one side, and the second water-blocking baffle 10 has two layers. The other side of the two layers of the second water-blocking baffle 10 is provided with a water outlet pipe.

[0034] The second water-blocking baffle 10 on the left has an opening at the bottom, and the second water-blocking baffle 10 on the right has an opening in the middle. The outlet of the water pipe on the other side of the second water-blocking baffle 10 is lower than the second water-blocking baffle 10 on the right to prevent oil in the water from being discharged along with the extracted water, thereby improving the quality of the extracted water.

[0035] The produced water treatment device has a sludge discharge port at the bottom and pipe mixers 2 on both sides of the main body.

[0036] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. A produced water treatment apparatus comprising a produced water treatment apparatus body, characterised in that: The pipeline mixer (2) is arranged on both sides of the produced water treatment device, the pipeline mixer is provided with the lifting pump (1) on one side, the main body of the treatment device is sequentially provided with the two-stage micro-vortex reactor (3), the lateral flow corrugated plate (7), the floating oil collector (9) and the water outlet pipeline, and the whole produced water treatment device body is connected with the cable through the pipeline. The main body of the produced water treatment device comprises the two-stage micro-vortex reactor (3), the other side of the two-stage micro-vortex reactor (3) is provided with the porous water distribution plate (5), the water collection area is connected with the porous water distribution plate (5) on one side, the other side of the water collection area is provided with the first water blocking baffle (6), the other side of the first water blocking baffle (6) is provided with the two-stage sedimentation area, the corrugated plate (7) is arranged in the sedimentation area, the floating oil collector (9) is arranged above the sedimentation area, and the other side of the sedimentation area is provided with the water outlet area.

2. A produced water treatment apparatus as claimed in claim 1, characterised in that: The left side of the porous water distribution plate (5) is provided with the flocculation reaction area of the treatment device, the flocculation reaction area of the treatment device adopts the two-stage micro-vortex reactor (3), the bottom of the two-stage micro-vortex reactor (3) is provided with the aeration device, and the pipeline is arranged between the two-stage micro-vortex reactors (3).

3. A produced water treatment apparatus as defined in claim 1, wherein: The left side of the porous water distribution plate (5) is provided with the flocculation reaction area of the treatment device, the flocculation reaction area of the treatment device adopts the two-stage micro-vortex reactor (3), the bottom of the two-stage micro-vortex reactor (3) is provided with the aeration device, and the pipeline is arranged between the two-stage micro-vortex reactors (3).

4. A produced water treatment apparatus as defined in claim 1, wherein: The left side of the porous water distribution plate (5) is provided with the flocculation reaction area of the treatment device, the flocculation reaction area of the treatment device adopts the two-stage micro-vortex reactor (3), the bottom of the two-stage micro-vortex reactor (3) is provided with the aeration device, and the pipeline is arranged between the two-stage micro-vortex reactors (3).

5. A produced water treatment apparatus as defined in claim 1, wherein: The left side of the porous water distribution plate (5) is provided with the flocculation reaction area of the treatment device, the flocculation reaction area of the treatment device adopts the two-stage micro-vortex reactor (3), the bottom of the two-stage micro-vortex reactor (3) is provided with the aeration device, and the pipeline is arranged between the two-stage micro-vortex reactors (3).

6. A produced water treatment apparatus as defined in claim 1, wherein: The bottom of the main body of the produced water treatment device is provided with the sludge discharge port, and the pipeline mixers (2) are arranged on both sides of the main body of the produced water treatment device.

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