Filtering device for oil removal of gas field production water

Abstract

The utility model discloses a filtering device for oil removal of gas field production water, which comprises a shell, limiting shafts are fixedly connected to the lower surface of the interior of the shell close to the edges of two sides, a rectangular frame is slidably connected to the surface of the interior of the shell, a filtering frame is fixedly connected to the surface of the inner side of the rectangular frame, and the limiting shafts penetrate through the rectangular frame. The lower surface of the bottom of the shell is fixedly connected with a filter pipe, a filter cotton core is arranged in the filter pipe, the side surface of the shell is fixedly connected with a supporting plate, the supporting plate is L-shaped, the side, close to the shell, of the vertical part of the supporting plate is fixedly connected with an air cylinder, and the top end of a piston rod of the air cylinder is fixedly connected with a push plate; the upper surface of the rectangular frame is fixedly connected with a tooth groove plate, and a tooth groove is formed in the surface of the side, away from the filtering frame, of the tooth groove plate. According to the structure, by arranging the limiting shaft, the filter frame, the rectangular frame, the air cylinder, the push plate and the filter cotton core, oil dirt in gas field production water can be effectively separated.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield production technology field, concretely is a kind of filter device for gas field production water deoiling. BACKGROUND

[0002] Produced water of oilfield oil well is injected into stratum after deoiling treatment, and it plays an important role in many aspects such as continuous high yield and stable production of oilfield, ecological environment protection and so on.

[0003] Oil, suspended solids and other substances are contained in produced water, which can easily damage the stratum and cause corrosion and scaling of the reinjection system, so they must be removed and treated before reinjection. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of filter device for gas field production water deoiling, can effectively separate oil dirt in gas field production water.

[0005] To achieve the above purpose, a filter device for gas field production water deoiling is provided, which includes a housing, a limiting shaft is fixedly connected to the inner lower surface of the housing near the two side edges, a rectangular frame is slidingly connected to the inner surface of the housing, a filter frame is fixedly connected to the inner side surface of the rectangular frame, the rectangular frame is penetrated by the limiting shaft, a filter tube is fixedly connected to the lower surface of the bottom of the housing, a filter cotton core is arranged in the filter tube, a support plate is fixedly connected to the side surface of the housing, the support plate is L-shaped, a gas cylinder is fixedly connected to the vertical part of the support plate near one side of the housing, and the piston rod top end of the gas cylinder is fixedly connected to a push plate. The limiting shaft is provided to facilitate the limitation of the moving track of the rectangular frame. The filter frame is provided to facilitate the filtration of larger oil dirt in the gas field production water. The filter cotton core is provided to facilitate the filtration of small oil dirt that cannot be filtered by the filter frame during the drainage process, thereby ensuring the separation effect. The gas cylinder is provided to facilitate the movement of the push plate. The push plate is provided to facilitate the pushing out of the oil dirt in the filter frame.

[0006] According to the filter device for gas field production water deoiling, a gear slot plate is fixedly connected to the upper surface of the rectangular frame, and a gear slot is arranged on the side surface of the gear slot plate away from the filter frame. The gear slot plate is provided to facilitate cooperation with the gear, and the rectangular frame and the filter frame are moved when the gear rotates.

[0007] According to the filter device for gas field production water deoiling, a side plate is fixedly connected to the upper surface of the housing, an inclined beam is fixedly connected to the lower surface of the side plate, the other end of the inclined beam is fixedly connected to the side surface of the housing, and a motor is fixedly connected to the upper surface of the side plate.

[0008] According to the filter device for removing oil from gas field production water, the motor output end is fixedly connected with a rotating shaft, the rotating shaft is fixedly connected with a gear on the cylindrical surface, and the gear is engaged with the gear slot of the gear slot plate.

[0009] According to the filter device for removing oil from gas field production water, the third outflow pipe is arranged on the side surface of the filter frame close to the bottom edge, the second stop valve is fixedly connected with the third outflow pipe away from the filter frame, the fourth outflow pipe is fixedly connected with the other end of the second stop valve, and the third outflow pipe, the second stop valve and the fourth outflow pipe are arranged below the rectangular frame.

[0010] According to the filter device for removing oil from gas field production water, the filter pipe bottom is provided with a cover plate, the lower surface of the filter pipe is provided with a circular ring groove, and the circular ring groove of the filter pipe is provided with a sealing ring.

[0011] According to the filter device for removing oil from gas field production water, the cover plate lower surface is fixedly connected with a first outflow pipe, the first outflow pipe is fixedly connected with a first stop valve away from the cover plate, and the first stop valve is fixedly connected with a second outflow pipe.

[0012] According to the filter device for removing oil from gas field production water, the lower surface of the shell is fixedly connected with a supporting leg, the filter pipe and the shell are in communication, and the first outflow pipe and the filter pipe are in communication.

[0013] The filter device for removing oil from gas field production water has the advantages that the limiting shaft, the filter frame, the rectangular frame, the air cylinder, the push plate and the filter cotton core are arranged, and oil stains in gas field production water can be effectively separated.

[0014] Additional aspects and advantages of the present application will be described in the following description, some of which will become apparent to those skilled in the art from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in conjunction with the drawings and examples.

[0016] Fig. 1 The present application is a whole structure schematic view of a filter device for removing oil from gas field production water.

[0017] Fig. 2 The present application is a whole structure schematic view of a filter device for removing oil from gas field production water.

[0018] Fig. 3 It is the filter pipe internal structure schematic view of the filter device for oil removal of gas field production water of the utility model;

[0019] Fig. 4 It is the filter frame and rectangular frame cooperation structure schematic view of the filter device for oil removal of gas field production water of the utility model;

[0020] Fig. 5 It is the A place local structure enlarged view of the filter device for oil removal of gas field production water of the utility model;

[0021] Fig. 6 It is the B place local structure enlarged view of the filter device for oil removal of gas field production water of the utility model.

[0022] Legend:

[0023] 1, shell; 2, filter pipe; 3, first outflow pipe; 4, first stop valve; 5, second outflow pipe; 6, support leg; 7, cover plate; 8, support plate; 9, air cylinder; 10, push plate; 11, limit shaft; 12, filter frame; 13, rectangular frame; 14, tooth groove plate; 15, side plate; 16, inclined beam; 17, motor; 18, gear; 19, rotating shaft; 20, filter cotton core; 21, sealing ring; 22, third outflow pipe; 23, second stop valve; 24, fourth outflow pipe. DETAILED DESCRIPTION

[0024] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0025] Referring to Figs. 1 to 6 , the utility model embodiment a filter device for oil removal of gas field production water, it includes shell 1, the lower surface inside shell 1 is fixedly connected with limit shaft 11 near both side edges, the inside surface of shell 1 is slidably connected with rectangular frame 13, the inside surface of rectangular frame 13 is fixedly connected with filter frame 12, rectangular frame 13 is penetrated by limit shaft 11, the bottom lower surface of shell 1 is fixedly connected with filter pipe 2, filter pipe 2 is provided with filter cotton core 20 inside, the side surface of shell 1 is fixedly connected with support plate 8, support plate 8 is L-shaped, the vertical part of support plate 8 is fixedly connected with air cylinder 9 near one side of shell 1, the top end of the piston rod of air cylinder 9 is fixedly connected with push plate 10, the length of push plate 10 and the corresponding part width inside filter frame 12 are same, filter cotton core 20 needs to be replaced regularly, to ensure the filtering effect, air cylinder 9 is supplied with air by external compressor.

[0026] The third outflow pipe 22 is fixedly connected with the second stop valve 23 away from the filter frame 12, and the second stop valve 23 is fixedly connected with the fourth outflow pipe 24 at the other end.

[0027] The bottom of the filter pipe 2 is provided with a cover plate 7, the lower surface of the filter pipe 2 is provided with a circular ring groove, the circular ring groove of the filter pipe 2 is provided with a sealing ring 21, the first outflow pipe 3 is fixedly connected to the lower surface of the cover plate 7, the first outflow pipe 3 is fixedly connected with the first stop valve 4 away from the cover plate 7, the first stop valve 4 is fixedly connected with the second outflow pipe 5 at the other end, and the cover plate 7 is fixed with the filter pipe 2 through screws.

[0028] The upper surface of the rectangular frame 13 is fixedly connected with a tooth groove plate 14, the tooth groove plate 14 is provided with a tooth groove away from one side surface of the filter frame 12, the upper surface of the side plate 15 is fixedly connected with the motor 17, the output end of the motor 17 is fixedly connected with a rotating shaft 19, the cylindrical surface of the rotating shaft 19 is fixedly connected with a gear 18, the gear 18 is engaged with the tooth groove of the tooth groove plate 14, and the motor 17 can be positively or reversely rotated.

[0029] The lower surface of the shell 1 is fixedly connected with a supporting leg 6, the filter pipe 2 and the shell 1 are communicated, and the first outflow pipe 3 and the filter pipe 2 are communicated.

[0030] Working principle: when in use, the filter frame 12 is moved to the lowermost position in the shell 1, then the gas field production water is injected into the shell 1, then the flocculating agent is added, the small oil droplets are gathered into larger oil beads, the separation is facilitated, then the motor 17 is started to drive the gear 18 to rotate, so that the filter frame 12 and the rectangular frame 13 are lifted through the tooth groove plate 14, in the process, the oil stains are gathered and filtered out, until the lower surface of the filter frame 12 and the lower surface of the push plate 10 are in contact, the second stop valve 23 is opened, then the oil stains in the filter frame 12 are pushed out by the push plate 12 driven by the cylinder 9, then the first stop valve 4 is opened, and the water flows out, in the process, the small oil stains not filtered out by the filter frame 12 are filtered by the filter cotton core 20, so that the cleanliness of the water flow is ensured.

[0031] The above describes the embodiments of the utility model in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A filter device for removing oil from gas field produced water, characterized in that, The utility model provides a filter device, including shell (1), the inside lower surface of shell (1) is fixedly connected with the limiting shaft (11) near both side edges, the inside surface of shell (1) is connected with the rectangular frame (13) slidingly, the inner side surface of rectangular frame (13) is fixedly connected with filter frame (12), the rectangular frame (13) is penetrated by limiting shaft (11), the bottom lower surface of shell (1) is fixedly connected with filter tube (2), the inside of filter tube (2) is provided with filter cotton core (20), the side surface of shell (1) is fixedly connected with support plate (8), support plate (8) is L -shaped, the vertical part of support plate (8) is fixedly connected with air cylinder (9) near shell (1) one side, the piston rod top end of air cylinder (9) is fixedly connected with push plate (10).

2. The filter device for removing oil from gas field produced water according to claim 1, characterized in that, The upper surface of the rectangular frame (13) is fixedly connected with the tooth groove plate (14), and the side surface away from the filter frame (12) of the tooth groove plate (14) is provided with a tooth groove.

3. The filter device for removing oil from gas field produced water according to claim 2, characterized in that, The upper surface of the shell (1) is fixedly connected with the side plate (15), the lower surface of the side plate (15) is fixedly connected with the inclined beam (16), the other end of the inclined beam (16) is fixedly connected with the side surface of the shell (1), and the upper surface of the side plate (15) is fixedly connected with the motor (17).

4. The filter device for removing oil from gas field produced water according to claim 3, characterized in that, The output end of the motor (17) is fixedly connected with the rotating shaft (19), the cylindrical surface of the rotating shaft (19) is fixedly connected with the gear (18), and the gear (18) is engaged with the tooth groove of the tooth groove plate (14).

5. The filter device for removing oil from gas field produced water of claim 1, wherein, The side surface of the filter frame (12) is provided with a third outflow pipe (22) near the bottom edge, the third outflow pipe (22) is fixedly connected with a second stop valve (23) away from the filter frame (12), the other end of the second stop valve (23) is fixedly connected with a fourth outflow pipe (24), and the third outflow pipe (22), the second stop valve (23) and the fourth outflow pipe (24) are below the rectangular frame (13).

6. The filter device for removing oil from gas field produced water of claim 1, wherein, The bottom of the filter tube (2) is provided with a cover plate (7), the lower surface of the filter tube (2) is provided with a circular ring groove, and the circular ring groove of the filter tube (2) is provided with a sealing ring (21).

7. The filter device for removing oil from gas field produced water of claim 6, wherein, The lower surface of the cover plate (7) is fixedly connected with a first outflow pipe (3), the first outflow pipe (3) is fixedly connected with a first stop valve (4) away from the cover plate (7), and the other end of the first stop valve (4) is fixedly connected with a second outflow pipe (5).

8. The filter device for removing oil from gas field produced water according to claim 7, characterized in that, The lower surface of the shell (1) is fixedly connected with a support leg (6), the filter tube (2) and the shell (1) are communicated, and the first outflow pipe (3) and the filter tube (2) are communicated.

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