Oil field wastewater energy-saving purification device capable of being detached and cleaned

Abstract

The utility model provides an oilfield wastewater energy-saving purification device capable of being detached and cleaned, which relates to the technical field of oilfield wastewater purification and comprises a purification base, an upper shell is mounted on the inner side of the purification base, a collection cover is mounted on the inner side of the upper shell, and a plurality of oil stain filters are obliquely mounted in the collection cover. And a precipitation tank is formed in the bottom end of the collection cover, a separation cylinder is fixedly installed in the middle of the collection cover, a primary filter screen cover is installed on the upper surface of the collection cover, and a separation clamping pipe is installed at the upper end of the upper shell. According to the utility model, the paddle rod is driven by the driving motor to rotate to form a dynamic vortex, impurities are promoted to continuously flow, premature accumulation and blockage are avoided, wastewater is ensured to smoothly flow through each stage of filter screen, and continuous multi-layer separation and filtration are realized; meanwhile, a backwashing system is arranged for online cleaning, and a detachable structure is adopted, so that intercepted objects can be directly cleaned, the maintenance difficulty is greatly reduced, and long-term stable and efficient operation of the equipment is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oilfield wastewater purification technical field relates to a detachable cleaning oilfield wastewater energy - saving purification device. BACKGROUND

[0002] Oil-containing wastewater treatment is a technology for purifying oil-containing wastewater generated in petroleum, chemical, steel and other industries. The main treatment objects include floating oil (particle size greater than 100 µm), dispersed oil (10-100 µm), emulsified oil (less than 10 µm) and dissolved oil (less than 0.1 µm). The treatment process usually consists of two stages: primary and deep. This technology originated from the demand for industrial wastewater treatment and gradually became more sophisticated as environmental standards improved.

[0003] The existing purification device for oil-containing wastewater in oil production of oil field with publication number CN220537552U, including the first purification bucket, the first purification bucket one side edge is provided with the second purification bucket, its characterized in that, the first purification bucket with the second purification bucket between through the lead -through pipe intercommunication, the second purification bucket is installed with the oil discharge pipe near the top, the second purification bucket is installed with the drain pipe near the bottom, the second purification bucket bottom is provided with the emptying, and the emptying is provided with the valve, this technology is easy to produce dirt deposition and adsorption in the barrel wall in wastewater treatment, affect separation efficiency and quality, and the closed purification cylinder cannot be disassembled and cleaned, and the continuous treatment effect is poor.

[0004] The existing technology has the following technical defects:

[0005] However, the existing detachable and cleanable oilfield wastewater energy-saving purification device lacks continuity in use. Although the equipment is provided with multiple filter screens, the cooperation between the filter screens cannot achieve true continuous multi-layer separation and filtration. In actual operation, impurities often accumulate in the first filter screen, making the subsequent filter levels useless and disrupting the overall integrity and stability of the filtration process. In addition, the filter screens are prone to clogging and difficult to clean and maintain. The polymers, suspended solids and colloidal substances in oilfield wastewater easily adhere to and clog the filter screens, causing the filter screens and the inner cavity of the shell to be integrated, resulting in a sharp decrease in water injection volume. Some filter screens are directly fixed in the box and cannot be disassembled. Even if they can be removed, the operation is extremely difficult and often requires forceful prying, which damages the filter core. The equipment is bulky and can only be pulled out from the top, making it impossible to clean the bottom sediment. It cannot be disassembled and cleaned as a whole, resulting in high maintenance costs and seriously affecting the continuous operation efficiency of the equipment. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problems of overcoming the deficiencies of the prior art and providing a detachable and cleanable oilfield wastewater energy-saving purification device.

[0007] The utility model discloses detachable oilfield wastewater energy -conserving purifier, including purifying base, the inside installation of purifying base has upper casing, the inside installation of upper casing has collection cover, the inside oblique installation of collection cover has a plurality of oil dirt filter, and the bottom of collection cover is provided with sediment tank, and the middle fixed mounting of collection cover has separation cylinder, and the upper surface of collection cover installs the primary filter screen cover, and the upper end of upper casing installs the separation card pipe, and the upper end of separation card pipe installs the seal ware, and the upper end of seal ware is equipped with valve cover, and the middle of seal ware is inserted and is installed and enters sewage seat, and the middle of entering sewage seat is provided with water inlet channel, and the bottom of collection cover is inserted and is provided with two drain pipes, and two drain pipes all with purifying base are inserted and are provided, and the inside of sediment tank is inserted and is provided with elastic plug, and elastic plug is combined with the bottom of purifying base, and the purifying base with collection cover is provided with backflushing flow channel between, and seal ware with separation card pipe and the inner wall of upper casing are provided with two high pressure channels in common.

[0008] The outer surface of the sewage inlet seat is rotatably sleeved with a toothed disc, and the upper end of the seal ware is fixedly installed with a driving motor.

[0009] The inner side of the seal ware is rotatably installed with a rotating shaft, the lower part of the rotating shaft is fixedly sleeved with a gear, the gear is engaged with the toothed disc, and the output end of the driving motor is fixedly connected with the rotating shaft.

[0010] The lower surface of the toothed disc is fixedly connected with two centrifugal moving rods, and a plurality of paddle rods are fixedly connected to the sides away from each other of the two centrifugal moving rods.

[0011] The outer side of the separation cylinder is annularly provided with a plurality of filter screens, and the filter screens are used in cooperation with the oil dirt filters.

[0012] The outer side of the collection cover is annularly inserted and installed with a plurality of one-way water inlet valves.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The paddle rods are rotated by the driving motor, a dynamic vortex is formed in cooperation with the sewage pressure, the large-particle impurities intercepted by the primary filter screen cover are kept in a suspended flow state, and the problem that impurities are accumulated in the primary filter screen too early in the traditional equipment, resulting in the failure of the subsequent filtering levels, is fundamentally solved. The integrity and stability of the filtering process are ensured, the operation of the whole process is avoided to be damaged due to the blockage of a certain level, the reliability and processing efficiency of the multi-stage filtering system are significantly improved, the backflushing system composed of the high-pressure channel, the backflushing flow channel and the one-way water inlet valve can perform online reverse flushing on the oil dirt filter, the impurities such as polymers and suspended solids adhered inside can be flushed into the separation cylinder and discharged through the sediment tank without disassembling the equipment, the filtering performance of the filter screen is effectively restored, the pain point that the traditional equipment cannot be disassembled and cleaned as a whole is solved, and the long-term stable operation of the equipment is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a structural schematic view of one embodiment of the present application,

[0016] Fig. 2 is one of the half cutaway structural views of one embodiment of the present application,

[0017] Fig. 3 is a partial cutaway view of one embodiment of the present application,

[0018] Fig. 4 is the second half cutaway structural view of one embodiment of the present application.

[0019] In the figure: 1, upper shell; 2, purification base; 3, valve cover; 4, drive motor; 5, paddle rod; 6, oil stain filter; 7, filter screen; 8, separation cylinder; 9, sediment tank; 10, backwash flow channel; 11, elastic plug; 12, collection cover; 13, primary filter screen cover; 14, centrifugal moving rod; 15, toothed disc; 16, gear; 17, rotating shaft; 18, water inlet channel; 19, sealing device; 20, sewage inlet seat; 21, separation pipe; 22, drain pipe; 23, one-way water inlet valve; 24, high-pressure channel. DETAILED DESCRIPTION

[0020] Example 1

[0021] As Figs. 1-4 shown, the detachable and cleanable oilfield wastewater energy-saving purification device includes a purification base 2, the inner side of the purification base 2 is provided with an upper shell 1, the inner side of the upper shell 1 is provided with a collection cover 12; a plurality of oil stain filters 6 are obliquely arranged in the inside of the collection cover 12, a sediment tank 9 is arranged at the bottom end of the collection cover 12, a separation cylinder 8 is fixedly arranged at the middle part, and a primary filter screen cover 13 is arranged on the upper surface; a separation pipe 21 is arranged at the upper end of the upper shell 1, a sealing device 19 is arranged at the upper end of the separation pipe 21, and a valve cover 3 is sleeved on the upper end of the sealing device 19; a sewage inlet seat 20 is arranged at the middle part of the sealing device 19, a water inlet channel 18 is arranged at the middle part of the sewage inlet seat 20, and a toothed disc 15 is rotatably sleeved on the outer surface of the sewage inlet seat 20; a drive motor 4 is fixedly arranged at the upper end of the sealing device 19, a rotating shaft 17 is rotatably arranged at the inner side of the drive motor 4, a gear 16 is fixedly sleeved on the lower part of the rotating shaft 17, the gear 16 is engaged with the toothed disc 15, and the output end of the drive motor 4 is fixedly connected with the rotating shaft 17; two centrifugal moving rods 14 are fixedly connected to the lower surface of the toothed disc 15, and a plurality of paddle rods 5 are fixedly connected to the sides away from each other of the two centrifugal moving rods 14.

[0022] The bottom end of the collecting cover 12 is provided with two drain pipes 22, which are both provided with the purification base 2; the inner side of the sediment tank 9 is provided with an elastic plug 11, which is attached to the bottom end of the purification base 2; the purification base 2 and the collecting cover 12 are provided with a backwashing flow channel 10; the sealing device 19, the separation pipe 21 and the inner wall of the upper shell 1 are provided with two high-pressure channels 24; the outer side of the separation cylinder 8 is annularly provided with a plurality of filter screens 7, which are used in cooperation with the oil stain filter 6; the outer side of the collecting cover 12 is annularly provided with a plurality of one-way water inlet valves 23.

[0023] The oilfield wastewater inlet pipe is connected to the sewage seat 20 by opening the valve cover 3, and then the wastewater is drawn into the water inlet channel 18 and flows into the separation pipe 21; the switch of the driving motor 4 is opened from the external controller, and the driving motor 4 rotates to drive the rotating shaft 17, thereby driving the gear 16 to rotate and drive the meshing toothed disc 15 to rotate, thereby driving the centrifugal rods 14 on both sides to rotate and move, so that the plurality of paddles 5 move and stir the entering wastewater; with the pressure of the sewage being drawn in, the wastewater can form a rotating vortex, further improving the filtering efficiency of the primary filter screen cover 13, isolating large particles or impurities with hardness, and promoting the flow of the trapped substances to avoid blockage; the wastewater after preliminary treatment flows into the separation cylinder 8 through the paddles 5 and is filtered again, the oil stains are trapped in the separation cylinder 8, and the remaining clean water can pass through the oil stain filter 6 and be filtered into the collecting cover 12; the external water storage pipe is connected to the drain pipe 22, and the treated water is discharged; after purification, the flushing water pipe is connected to the high-pressure channel 24, the high-pressure water is flushed into the backwashing flow channel 10, enters the collecting cover 12 through the one-way water inlet valve 23, and performs backwashing on the oil stain filter 6; the flushing sewage enters the separation cylinder 8, the elastic plug 11 is removed, the flushing water in the sediment tank 9 is discharged, the sealing device 19 and the separation pipe 21 are respectively disassembled, and the trapped substances in the separation pipe 21 are cleaned.

[0024] The driving motor 4 drives the paddle rod 5 to rotate to form a vortex at the sewage inlet 20, so that the large-particle impurities intercepted by the primary filter cover 13 can continuously flow, and the impurities are prevented from being accumulated on the primary filter screen, so that the subsequent separation cylinder 8 and oil dirt filter 6 can be smoothly connected and play a filtering role, and the continuous cooperation between the multi-stage filter screens is realized, and the integrity and stability of the filtering process are ensured.

[0025] Working process or principle:

[0026] The oil field wastewater inlet pipe is connected to the sewage inlet 20 by opening the valve cover 3, the wastewater flows into the separation pipe 21 from the water inlet channel 18; the driving motor 4 is started, and the output end drives the rotating shaft 17 to rotate, so that the gear 16 drives the gear plate 15 to rotate, and then drives the centrifugal rods 14 and the plurality of paddle rods 5 on both sides to move, and the wastewater is stirred; the wastewater forms a rotating vortex in the device under the cooperation of the pressure formed by the continuous pumping of the sewage, which improves the filtering efficiency of the primary filter cover 13, isolates large-particle or hard impurities, and on the other hand, the retained impurities are kept in a flowing state by the rotational flow power, so that they are prevented from being accumulated on the primary filter screen, thereby ensuring the integrity and stability of the filtering process; the wastewater after preliminary treatment flows into the separation cylinder 8 through the paddle rod 5 for re-filtering, the oil dirt is intercepted in the separation cylinder 8, the remaining purified water continues to pass through the oil dirt filter 6 to be filtered into the collecting cover 12, and finally is discharged through the drain pipe 22, after the purification, the washing pipe is connected to the high-pressure channel 24, the high-pressure water enters the collecting cover 12 through the backwashing flow channel 10 and the one-way water inlet valve 23 respectively, and the oil dirt filter 6 is backwashed, and the washing wastewater flows into the separation cylinder 8; the elastic plug 11 is removed, so that the washing water in the sediment tank 9 can be discharged, and the internal cleaning can be completed without disassembling the main equipment; then, the sealing device 19 and the separation pipe 21 are respectively disassembled, the pollutants intercepted in the separation pipe 21 are directly cleaned, the operation difficulty of forcibly prying the filter core or disassembling the heavy component is avoided, the bottom sediment can be completely cleaned, the maintenance cost is significantly reduced, and the continuous operation efficiency of the equipment is effectively ensured.

[0027] The utility model discloses a drive motor drives paddle rod rotation, cooperation sewage pressure forms dynamic vortex, promotes the large particle impurity of primary filter screen cover retention keeps suspended flow state, fundamentally solved the problem of the impurity of traditional equipment in the early stage of filter screen, causes the subsequent filtration level failure. Ensure the integrity and stability of filtration process, avoid the damage of whole process operation because of the blockage of a stage, significantly improve the reliability and processing efficiency of multistage filtration system;The backflushing system of high pressure channel, backflushing flow channel and one-way water inlet valve is set up, can carry out online reverse flushing to the oil dirt filter, can flush the impurity such as polymer, suspended solid adhered inside into separation cylinder and discharge through sedimentation tank without disassembling equipment, effectively restore filter screen filtering performance, solve the pain point that traditional equipment cannot be disassembled and cleaned, and the long-term stable operation of equipment is ensured.

[0028] In the utility model, the description of the structure direction and relative position relation, such as the description of before, after, left, right, up and down, does not constitute the limitation to the utility model, and is only convenient for description.

Claims

1. A detachable and washable energy-saving purification device for oilfield wastewater, characterized in that: Includes a purification base (2), an upper shell (1) installed on the inner side of the purification base (2), a collection hood (12) installed on the inner side of the upper shell (1), several oil filters (6) installed obliquely inside the collection hood (12), a sedimentation tank (9) opened at the bottom of the collection hood (12), a separation cylinder (8) fixedly installed in the middle of the collection hood (12), a primary filter screen (13) installed on the upper surface of the collection hood (12), a separation clamp tube (21) installed at the upper end of the upper shell (1), a sealer (19) installed at the upper end of the separation clamp tube (21), a valve cover (3) fitted at the upper end of the sealer (19), and the sealer ( A sewage inlet seat (20) is installed in the middle of the sewage inlet seat (20), and a water inlet channel (18) is opened in the middle of the sewage inlet seat (20). Two drain pipes (22) are installed at the bottom of the collection cover (12), and both drain pipes (22) are installed in the purification base (2). An elastic plug (11) is installed in the inner side of the sedimentation tank (9), and the elastic plug (11) is attached to the bottom of the purification base (2). A backwash channel (10) is provided between the purification base (2) and the collection cover (12). Two high-pressure channels (24) are opened together on the inner wall of the sealing device (19), the separation clamp (21), and the upper shell (1). The outer surface of the inlet sewage seat (20) is fitted with a toothed disc (15), and the upper end of the seal (19) is fixedly installed with a drive motor (4). Two centrifugal rods (14) are fixedly connected to the lower surface of the toothed disc (15), and multiple paddle rods (5) are fixedly connected to the two centrifugal rods (14) on the side away from each other.

2. The detachable and washable energy-saving oilfield wastewater purification device according to claim 1, characterized in that: The inner side of the seal (19) is rotatably mounted with a rotating shaft (17), and a gear (16) is fixedly mounted on the lower part of the rotating shaft (17). The gear (16) meshes with the gear plate (15), and the output end of the drive motor (4) is fixedly connected to the rotating shaft (17).

3. The detachable and washable energy-saving oilfield wastewater purification device according to claim 2, characterized in that: The outer side of the separation cylinder (8) is provided with multiple filter screens (7), which are used in conjunction with the oil filter (6).

4. The detachable and washable energy-saving oilfield wastewater purification device according to claim 3, characterized in that: The outer side of the collection hood (12) is equipped with multiple one-way water inlet valves (23).

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