An oil-water separator for offshore oil production

Abstract

The utility model discloses an offshore oil production oil -water separator belongs to petroleum production field, including base, the top fixedly connected with separation cylinder of base, the top one side fixedly connected with feed pipe of separation cylinder, the bottom one side fixedly connected with drain pipe of separation cylinder, the top fixedly connected with oil discharge pipe of separation cylinder, is provided with stirring subassembly in separation cylinder, is set up between the inner wall of separation cylinder and has the sliding slot, the sliding slot is slidably connected with mounting panel, and the inner top wall of mounting panel and separation cylinder is fixedly connected with the conveying pipe, and the conveying pipe is linked together with oil discharge pipe, and the bottom fixedly connected with the oil collecting cover of mounting panel, and the oil collecting cover is linked together with conveying pipe, and the conveying pipe is corrugated hose, and the top of separation cylinder is provided with power component, and the front side of separation cylinder is provided with glass window. Advantageous effects lie in: through power component drive mounting panel drive oil collecting cover moves up and down, is convenient for according to the thickness of oil layer and moves oil collecting cover to the appropriate height, improves the effect of oil -water separation.

Description

Technical Field

[0001] This utility model relates to the field of petroleum production, and in particular to an oil-water separator for offshore petroleum production. Background Technology

[0002] Offshore oil production refers to a series of activities involving oil exploration, extraction, processing, and transportation in the marine environment. In the oil production field, oil-water separators are a crucial piece of equipment. During oil production and processing, oil-water mixtures are often generated, such as oily wastewater and petroleum pollutants. Oil-water separation mainly relies on the density difference or chemical properties of water and oil, utilizing the principle of gravity sedimentation or other physicochemical reactions to remove impurities or separate oil and water.

[0003] A search revealed Chinese Patent Publication No. CN213965274U, which discloses an oil-water separator for offshore oil production. The separator includes an oil-water separator body, with an inlet at the top, an oil outlet at the front, a drain outlet on one side, and a water outlet on the other side. A water pipe is fixedly installed on the water outlet. A first partition is fixedly connected to the interior of the oil-water separator body near the inlet. A locking block is fixedly connected to both the inner wall of the oil-water separator body and the outer wall of the first partition, with a filter basket mounted on the locking block. A scraper is located at the bottom of the oil-water separator body. An isolation layer and a heat-conducting plate are fixedly connected to the inner walls of the front and rear sides of the oil-water separator body, with a heating pipe fixedly installed inside the isolation layer.

[0004] Different batches of oil-water mixtures have different oil concentrations, resulting in different thicknesses of the separated oil layer. However, in the existing technology, the oil drain pipe is mostly fixed to the side wall of the cylinder, which makes it inconvenient to adjust the position of the oil drain pipe according to the thickness of the oil layer. Utility Model Content

[0005] The purpose of this invention is to provide an oil-water separator for offshore oil production in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An oil-water separator for offshore oil production includes a base, a separation cylinder fixedly connected to the top of the base, a feed pipe fixedly connected to one side of the top of the separation cylinder, a drain pipe fixedly connected to one side of the bottom of the separation cylinder, an oil drain pipe fixedly connected to the top of the separation cylinder, a stirring assembly inside the separation cylinder, a sliding groove formed between the inner walls of the separation cylinder, an mounting plate slidably connected within the sliding groove, a conveying pipe fixedly connected between the mounting plate and the inner top wall of the separation cylinder, the conveying pipe communicating with the oil drain pipe, an oil collecting hood fixedly connected to the bottom of the mounting plate, the oil collecting hood communicating with the conveying pipe, the conveying pipe being a corrugated flexible hose, a power assembly installed at the top of the separation cylinder for driving the mounting plate to move up and down, and a glass window installed on the front side of the separation cylinder.

[0008] Preferably, the power assembly includes a rotary motor fixedly connected to the top of the separator cylinder, the output end of the rotary motor is connected to a screw via a coupling, the external thread of the screw is connected to a threaded sleeve, and a mounting plate is fixedly connected to the bottom of the threaded sleeve.

[0009] Preferably, the bottom of the base has a mounting groove.

[0010] Preferably, the stirring assembly includes a stirring motor fixedly connected in the mounting groove, the output end of the stirring motor is connected to a mounting shaft via a coupling, the mounting shaft extends into the separation cylinder, and multiple sets of circumferentially arranged stirring rods are fixedly connected to the outer wall of the mounting shaft.

[0011] Preferably, the wall of the separator has a cavity, and a heating component is installed in the cavity.

[0012] Preferably, the inner bottom wall of the separator is inclined, and the drain pipe is located on the lower side of the inner bottom wall of the separator.

[0013] Preferably, the base has support legs fixedly connected to the four corners at the bottom.

[0014] The beneficial effect is that the power component drives the mounting plate to move the oil collection hood up and down, which makes it easy to move the oil collection hood to a suitable height according to the thickness of the oil layer, thus improving the oil-water separation effect.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of an oil-water separator for offshore oil production according to the present invention;

[0018] Figure 2 This is a front view of an oil-water separator for offshore oil production according to the present invention;

[0019] Figure 3 This is a right view of the internal structure of an oil-water separator for offshore oil production according to the present invention;

[0020] Figure 4 This is a top view of an oil-water separator for offshore oil production according to the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the separation cylinder of an oil-water separator for offshore oil production, as described in this utility model.

[0022] The reference numerals in the attached drawings are explained as follows: 1. Base; 101. Support leg; 2. Separation cylinder; 201. Feed pipe; 202. Drain pipe; 203. Oil drain pipe; 301. Mounting plate; 302. Conveying pipe; 303. Oil collection cover; 304. Rotary motor; 305. Screw; 306. Screw sleeve; 307. Glass window; 401. Stirring motor; 402. Mounting shaft; 403. Stirring rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5 As shown, an oil-water separator for offshore oil production includes a base 1. The bottom of the base 1 has an installation groove. Support legs 101 are fixedly connected to the four corners of the bottom of the base 1. A separation cylinder 2 is fixedly connected to the top of the base 1. A feed pipe 201 is fixedly connected to one side of the top of the separation cylinder 2. A drain pipe 202 is fixedly connected to one side of the bottom of the separation cylinder 2. An oil drain pipe 203 is fixedly connected to the top of the separation cylinder 2. Solenoid valves are installed in both the feed pipe 201 and the drain pipe 202. The other end of the oil drain pipe 203 is connected to an external suction pump.

[0027] The wall of the separator 2 has a cavity, and a heating element is installed in the cavity. The heating element is an electric heating wire. The inner bottom wall of the separator 2 is inclined, and the drain pipe 202 is located on the lower side of the inner bottom wall of the separator 2.

[0028] A stirring assembly is installed inside the separation cylinder 2. The stirring assembly includes a stirring motor 401 bolted to the mounting groove. The output end of the stirring motor 401 is connected to a mounting shaft 402 via a coupling. The mounting shaft 402 extends into the separation cylinder 2. Multiple sets of circumferentially arranged stirring rods 403 are fixedly connected to the outer wall of the mounting shaft 402. When the stirring motor 401 is started, the stirring motor 401 drives the mounting shaft 402 to rotate the stirring rods 403, stirring the mixture and causing the oil and water to be initially separated.

[0029] A sliding groove is provided between the inner walls of the separator cylinder 2. An installation plate 301 is slidably connected in the sliding groove. A conveying pipe 302 is fixedly connected between the installation plate 301 and the inner top wall of the separator cylinder 2. The conveying pipe 302 is connected to the oil drain pipe 203. An oil collection cover 303 is fixedly connected to the bottom of the installation plate 301. The oil collection cover 303 is connected to the conveying pipe 302. The conveying pipe 302 is a corrugated hose. A glass window 307 is provided on the front side of the separator cylinder 2. The thickness of the oil layer can be easily observed through the glass window 307, so that the oil collection cover 303 can be moved to a suitable height.

[0030] A power assembly is provided at the top of the separation cylinder 2. The power assembly is used to drive the mounting plate 301 to move up and down. The power assembly includes a rotary motor 304 bolted to the top of the separation cylinder 2. The output end of the rotary motor 304 is connected to a screw 305 through a coupling. A threaded sleeve 306 is connected to the external thread of the screw 305. The mounting plate 301 is fixedly connected to the bottom of the threaded sleeve 306. When the rotary motor 304 is started, the rotary motor 304 drives the screw 305 to rotate. The screw 305 drives the threaded sleeve 306 to move the mounting plate 301 up and down.

[0031] Working principle: During use, an appropriate amount of mixture enters the separator cylinder 2 through the feed pipe 201. The solenoid valve in the feed pipe 201 is closed, and the stirring motor 401 is started. The stirring motor 401 drives the mounting shaft 402 to rotate the stirring rod 403 to stir the mixture. The stirring motor 401 is then turned off, and the mixture is allowed to stand, allowing the less dense oil to float to the top. After standing for a period of time, the rotary motor 304 is started, driving the screw 305 to rotate. The screw 305 drives the screw sleeve 306 to move the mounting plate 301 up and down. The oil collection cover 303 is moved to a suitable height according to the thickness of the oil layer. The upper layer of oil is extracted by the external suction pump. Then, the solenoid valve in the drain pipe 202 is opened, and the lower layer of water is discharged through the drain pipe 202.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An oil-water separator for offshore oil production, comprising a base (1), a separation cylinder (2) fixedly connected to the top of the base (1), a feed pipe (201) fixedly connected to one side of the top of the separation cylinder (2), a drain pipe (202) fixedly connected to one side of the bottom of the separation cylinder (2), an oil drain pipe (203) fixedly connected to the top of the separation cylinder (2), and a stirring assembly disposed inside the separation cylinder (2), characterized in that: A sliding groove is provided between the inner walls of the separator (2), and an installation plate (301) is slidably connected in the sliding groove. A conveying pipe (302) is fixedly connected between the installation plate (301) and the inner top wall of the separator (2). The conveying pipe (302) is connected to the oil drain pipe (203). An oil collection cover (303) is fixedly connected to the bottom of the installation plate (301). The oil collection cover (303) is connected to the conveying pipe (302). The conveying pipe (302) is a corrugated hose. A power assembly is provided at the top of the separator (2). The power assembly is used to drive the installation plate (301) to move up and down. A glass window (307) is provided on the front side of the separator (2).

2. A separator according to claim 1, c h a r a c t e r i s e d in that: The power assembly includes a rotary motor (304) fixedly connected to the top of the separator (2). The output end of the rotary motor (304) is connected to a screw (305) via a coupling. The screw (305) is externally threaded with a threaded sleeve (306). The mounting plate (301) is fixedly connected to the bottom of the threaded sleeve (306).

3. A separator according to claim 1, c h a r a c t e r i s e d in that: The base (1) has an installation groove at its bottom.

4. A water-oil separator for offshore oil production according to claim 3, characterized in that: The stirring assembly includes a stirring motor (401) fixedly connected in the mounting groove. The output end of the stirring motor (401) is connected to a mounting shaft (402) via a coupling. The mounting shaft (402) extends into the separation cylinder (2). Multiple sets of circumferentially arranged stirring rods (403) are fixedly connected to the outer wall of the mounting shaft (402).

5. A separator according to claim 1, c h a r a c t e r i s e d in that: The separation cylinder (2) has a cavity inside its wall, and a heating component is installed inside the cavity.

6. An oil-water separator for offshore oil production according to claim 1, characterized in that: The inner bottom wall of the separation cylinder (2) is inclined, and the drain pipe (202) is located on the lower side of the inner bottom wall of the separation cylinder (2).

7. An oil-water separator for offshore oil production according to claim 1, characterized in that: The base (1) is fixedly connected to the four corners of its bottom with support legs (101).

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