Oil removal device for offshore platform

Abstract

The utility model discloses an offshore platform oil removal device which comprises a filter assembly and a water-oil separation assembly, and the filter assembly comprises a filter plate, a filter box, a first stirring rod, a second stirring rod and a hot air box; the water-oil separation assembly comprises a separation box, an oil baffle plate, an oil stain adsorption mechanism, a connecting pipe, a flushing structure, a water conveying pipe and a water pump. Sewage is fed into the filter box through the water inlet pipe, and blown air is heated through the hot air box, so that the sewage in the filter box is heated, and oil dirt is prevented from being condensed; the motor works to drive the first stirring rod and the second stirring rod to rotate, so that water and oil are always kept in a mixed state. When sewage is in the separation tank, oil is on the upper layer of water due to different densities of water and oil, oil stains on the upper layer are pumped into the oil storage tank through the oil pumping pipe, and the separated water is discharged through the second water outlet pipe. And when the water is discharged, residual oil stains in the water can be adsorbed through adsorption of modified fiber ball fillers in the oil stain adsorption mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of upper platform oil removal equipment, in particular to an offshore platform oil removal device. Background Art

[0002] Offshore oil platforms generate wastewater during oil and gas extraction and drilling. The platform oil production wastewater is generally treated on the platform and then discharged directly into the sea. The equipment that can be used in the common oil-water separation process includes inclined plate oil remover, coalescence separation, cyclone separation and other technologies. The objects and occasions of use of these types of equipment are often different.

[0003] However, most water-oil separation equipment does not have the function of heating sewage. When the temperature is low, the oil will condense, which is not convenient for the subsequent separation steps. In addition, there will be certain impurities in the sewage. Before water-oil separation, the impurities must be filtered out. During the filtration, water and oil stratification may occur, which makes it inconvenient to remove the oil on the upper layer, thus affecting the water-oil separation effect. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an offshore platform oil removal device, which aims to improve the problem that most water-oil separation equipment does not have the function of heating sewage. When the temperature is low, the oil will condense, which is not convenient for subsequent separation steps; and there will be certain impurities in the sewage. Before water-oil separation, the impurities must be filtered. During the filtration, water and oil stratification may occur, which makes it inconvenient to remove the oil in the upper layer, thereby affecting the water-oil separation effect.

[0005] The utility model is achieved in this way:

[0006] The present application provides an offshore platform oil removal device including a filter component and a water-oil separation component.

[0007] The filter assembly includes a filter plate, a filter box, a first stirring rod, a second stirring rod and a hot air box. The filter plate is arranged in the filter box, the filter plate is tilted in the filter box, the first stirring rod is arranged in the upper half of the filter box, the second stirring rod is arranged in the lower half of the filter box, and the hot air box is arranged on the top of the filter box. The water-oil separation assembly includes a separation box, an oil baffle, an oil adsorption mechanism, a connecting pipe, a flushing structure, a water pipe and a water pump. The oil baffle is arranged on the top of the inner side of the separation box, the oil adsorption mechanism is arranged under the oil baffle, the connecting pipe is arranged between the separation box and the filter box, the flushing structure is connected through the water pipe, and the water pump is arranged on the connecting pipe.

[0008] In a preferred technical solution of the utility model, one end of the first stirring rod is transmission-connected to the output end of the motor through a coupling, and the output end of the motor is also transmission-connected to a driving wheel.

[0009] In a preferred technical solution of the present invention, a driven wheel is provided at one end of the second stirring rod, and the driven wheel is connected to the driving wheel via a belt transmission.

[0010] In a preferred technical solution of the utility model, a slag removal port is provided on one side of the filter box, the slag removal port is provided at the bottom end of the filter plate, and a sealing door is hingedly provided outside the slag removal port.

[0011] In a preferred technical solution of the utility model, a fan and a heating wire are arranged in the hot air box, and the air outlet of the hot air box is connected to the filter box.

[0012] In a preferred technical solution of the utility model, a water inlet pipe and a first water outlet pipe are provided on the filter box, and the first water outlet pipe is connected to the connecting pipe.

[0013] In a preferred technical solution of the utility model, the oil baffle plate and the oil adsorption mechanism divide the separation box into two left and right spaces, and an oil extraction pipe is provided at the top of the left side of the separation box.

[0014] In a preferred technical solution of the utility model, the oil adsorption mechanism includes a mounting frame and a modified fiber ball filler, both sides of the mounting frame are mesh structures, and the modified fiber ball filler is arranged in the mounting frame.

[0015] In a preferred technical solution of the utility model, the flushing structure includes a straight pipe and a flushing head, a plurality of flushing heads are provided and are evenly connected and arranged on the straight pipe, the straight pipe is connected to the water pipe, and the flushing head faces the oil adsorption mechanism.

[0016] In a preferred technical solution of the utility model, a second water outlet pipe is provided on the right side of the separation box, a three-way valve is connected to the second water outlet pipe, and the three-way valve is connected to the water delivery pipe.

[0017] Beneficial effects: The novel offshore platform oil removal device proposed in the present invention sends sewage into the filter box through the water inlet pipe, heats the wind blown in through the electric heating wire, and thus heats the sewage in the filter box to prevent the oil from condensing; the impurities in the sewage are filtered through the filter plate, and then pumped into the separation box for water-oil separation; the first stirring rod and the second stirring rod are driven to rotate by the motor, so that the water and oil are always kept in a mixed state. When the sewage is in the separation box, due to the different densities of water and oil, the oil will be on the upper layer of the water, and the upper layer of oil will be pumped into the oil storage tank through the oil extraction pipe, and the separated water will be discharged through the second water outlet pipe. While the water is discharged, the oil remaining in the water can be adsorbed by the adsorption of the modified fiber ball filler in the oil adsorption mechanism, further improving the separation effect. Moreover, the modified fiber ball filler can be cleaned by the flushing structure, which is convenient for the next oil separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure provided by the embodiment of the utility model;

[0020] Figure 2 A schematic diagram of a cross-sectional structure provided for an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the enlarged structure of point A provided in an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the overall three-dimensional structure provided for an implementation mode of the utility model.

[0023] In the figure: 100-filter assembly; 110-filter plate; 120-filter box; 121-slag removal port; 122-water inlet pipe; 123-first water outlet pipe; 130-first stirring rod; 131-motor; 132-driving wheel; 140-second stirring rod; 141-driven wheel; 142-belt; 150-hot air box; 151-fan; 152-electric heating wire; 300-water-oil separation assembly; 310-separation box; 311-oil extraction pipe; 312-second water outlet pipe; 313-three-way valve; 320-oil baffle; 330-oil adsorption mechanism; 331-installation frame; 332-modified fiber ball filler; 340-connecting pipe; 350-flushing structure; 351-straight pipe; 352-flushing head; 360-water pipe; 370-water pump. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 The utility model provides a technical solution: an offshore platform oil removal device includes a filter component 100 and a water-oil separation component 300. The filter component 100 and the water-oil separation component 300 improve the problem that most water-oil separation equipment does not have the function of heating sewage. When the temperature is low, the oil will condense, which is not convenient for subsequent separation steps; and there will be certain impurities in the sewage. Before water-oil separation, the impurities must be filtered. During the filtration, water and oil stratification may occur, which makes it inconvenient to remove the upper layer of oil, thereby affecting the water-oil separation effect.

[0026] See also Figure 1-Figure 4The filter assembly 100 includes a filter plate 110, a filter box 120, a first stirring rod 130, a second stirring rod 140 and a hot air box 150. The filter plate 110 is arranged in the filter box 120, and the filter plate 110 is tilted in the filter box 120. A slag removal port 121 is arranged on one side of the filter box 120, and the slag removal port 121 is arranged at the bottom end of the filter plate 110. A sealing door is hingedly arranged outside the slag removal port 121, and impurities on the filter plate 110 can be cleaned by opening the sealing door. An inlet pipe 122 and a first outlet pipe 123 are arranged on the filter box 120, and the first outlet pipe 123 is connected to the connecting pipe 340. The first stirring rod 130 is arranged in the upper half of the filter box 120, the second stirring rod 140 is arranged in the lower half of the filter box 120, and the hot air box 150 is arranged on the top of the filter box 120. The hot air box 150 is provided with a fan 151 and a heating wire 152. The air outlet of the hot air box 150 is connected to the filter box 120. The heating wire 152 heats the blown air, thereby heating the sewage in the filter box 120 to prevent the oil from condensing. One end of the first stirring rod 130 is connected to the output end of the motor 131 through a coupling, and the output end of the motor 131 is also connected to the driving wheel 132; one end of the second stirring rod 140 is provided with a driven wheel 141, and the driven wheel 141 and the driving wheel 132 are connected to each other through a belt 142.

[0027] See also Figure 1-Figure 4 The water-oil separation assembly 300 includes a separation box 310, an oil baffle plate 320, an oil adsorption mechanism 330, a connecting pipe 340, a flushing structure 350, a water pipe 360 ​​and a water pump 370. The oil baffle plate 320 is arranged on the inner top of the separation box 310, and the oil adsorption mechanism 330 is arranged under the oil baffle plate 320. The oil baffle plate 320 and the oil adsorption mechanism 330 divide the separation box 310 into two spaces on the left and right. The left top of the separation box 310 is connected with an oil extraction pipe 311, and the oil on the upper layer is extracted into the oil storage tank through the oil extraction pipe 311. The oil adsorption mechanism 330 includes a mounting frame 331 and a modified fiber ball filler 332. The two sides of the mounting frame 331 are mesh structures, and the modified fiber ball filler 332 is arranged in the mounting frame 331.

[0028] See also Figure 1-Figure 4A connecting pipe 340 is provided between the separation box 310 and the filter box 120, and the flushing structure 350 is connected through a water pipe 360, and a water pump 370 is provided on the connecting pipe 340. The flushing structure 350 includes a straight pipe 351 and a flushing head 352. The flushing heads 352 are provided in multiple and evenly connected and arranged on the straight pipe 351, and the straight pipe 351 is connected to the water pipe 360. A second water outlet pipe 312 is provided on the right side of the separation box 310, and a three-way valve 313 is connected to the second water outlet pipe 312. The three-way valve 313 is connected to the water pipe 360. The separated water can also be used to supply water to the flushing structure 350 to improve the utilization rate of water resources. The flushing head 352 faces the oil adsorption mechanism 330, and the modified fiber ball filler 332 can be cleaned through the flushing structure 350, which is convenient for the next oil separation.

[0029] Working principle: The novel offshore platform oil removal device proposed in this invention sends sewage into the filter box 120 through the water inlet pipe 122, filters the impurities in the sewage through the filter plate 110, and then pumps it into the separation box 310 for water-oil separation; the motor 131 drives the first stirring rod 130 and the second stirring rod 140 to rotate, so that the water and oil are always kept in a mixed state. When the sewage is in the separation box 310, due to the different densities of water and oil, the oil will be on the upper layer of the water. The upper layer of oil is pumped into the oil storage tank through the oil pumping pipe 311, and the separated water is discharged through the second water outlet pipe 312. While the water is discharged, the oil remaining in the water can be adsorbed by the adsorption of the modified fiber ball filler 332 in the oil adsorption mechanism 330, further improving the separation effect. Moreover, the modified fiber ball filler 332 can be cleaned by the flushing structure 350, which is convenient for the next oil separation.

[0030] It should be noted that the specific models and specifications of the fan 151, the heating wire 152 and the water pump 370 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0031] The power supply and principles of the fan 151, the heating wire 152 and the water pump 370 are clear to those skilled in the art and will not be described in detail here.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An offshore platform oil removal device, comprising a filter assembly and a water-oil separation assembly, characterized in that: The filter assembly comprises a filter plate, a filter box, a first stirring rod, a second stirring rod and a hot air box, wherein the filter plate is arranged in the filter box, the filter plate is arranged obliquely in the filter box, the first stirring rod is arranged in the upper part of the filter box, the second stirring rod is arranged in the lower part of the filter box, and the hot air box is arranged on the top of the filter box; The water-oil separation assembly includes a separation box, an oil baffle plate, an oil adsorption mechanism, a connecting pipe, a flushing structure, a water pipe and a water pump. The oil baffle plate is provided on the top of the inner side of the separation box, the oil adsorption mechanism is provided under the oil baffle plate, the connecting pipe is provided between the separation box and the filter box, the flushing structure is connected through the water pipe, and the water pump is provided on the connecting pipe.

2. An offshore platform oil removal device as claimed in claim 1, characterized in that: One end of the first stirring rod is transmission-connected to the output end of the motor through a coupling, and the output end of the motor is also transmission-connected to a driving wheel.

3. An offshore platform oil removal device as claimed in claim 2, characterized in that: A driven wheel is arranged at one end of the second stirring rod, and the driven wheel is connected to the driving wheel through a belt transmission.

4. The offshore platform oil removal device according to claim 1, characterized in that: A slag removal port is arranged at one side of the filter box, the slag removal port is arranged at the bottom end of the filter plate, and a sealing door is hingedly arranged outside the slag removal port.

5. The offshore platform oil removal device according to claim 1, characterized in that: The hot air box is provided with a fan and an electric heating wire, and the air outlet of the hot air box is communicated with the filter box.

6. The offshore platform oil removal device according to claim 1, characterized in that: The filter box is provided with a water inlet pipe and a first water outlet pipe, and the first water outlet pipe is communicated with the connecting pipe.

7. The offshore platform oil removal device according to claim 1, characterized in that: The oil baffle plate and the oil adsorption mechanism divide the separation box into two left and right spaces, and an oil extraction pipe is connected to the top of the left side of the separation box.

8. An offshore platform oil removal device as claimed in claim 7, characterized in that: The oil stain adsorption mechanism comprises a mounting frame and a modified fiber ball filler. Both sides of the mounting frame are mesh structures, and the modified fiber ball filler is arranged in the mounting frame.

9. The offshore platform oil removal device according to claim 1, characterized in that: The flushing structure comprises a straight pipe and a flushing head. A plurality of flushing heads are provided and are evenly connected and arranged on the straight pipe. The straight pipe is connected to the water pipe, and the flushing head faces the oil adsorption mechanism.

10. The offshore platform oil removal device according to claim 1, characterized in that: The right side of the separation box is connected with a second water outlet pipe, the second water outlet pipe is connected with a three-way valve, and the three-way valve is connected to the water delivery pipe.

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