Oil and gas field sulfur-containing sewage treatment and purification equipment

Abstract

The utility model discloses oil and gas field sulfur-containing sewage treatment and purification equipment, and relates to the technical field of sulfur-containing sewage treatment. The sewage treatment device comprises a base, the top of the base is respectively provided with a treatment box, a liquid storage box and a filter box, a rotating pipe is installed inside the treatment box, an air distribution head is fixed at the top of the rotating pipe, when sewage is filtered, the sewage falls into one group of installation cavities, a filter plate can filter the sewage, and after the filter plate is blocked, the air distribution head is fixed at the top of the rotating pipe. A worker can place a clean filter plate in the other group of mounting cavities, then the worker can operate a hydraulic rod, and the hydraulic rod retracts to enable a switching frame to move, so that one group of mounting cavities are ejected out of the filter box, the other group of mounting cavities are fed into the filter box, and at the moment, the clean filter plate can immediately filter sewage; a worker can take out the blocked filter plate for cleaning, and through the design, the filter plate does not need to be replaced after shutdown, so that the sewage treatment efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sulfur-containing wastewater treatment technology, specifically to a sulfur-containing wastewater treatment and purification device for oil and gas fields. Background Technology

[0002] The processing of extracted oil and gas generates a large amount of sulfur-containing wastewater. If this wastewater is discharged directly without treatment, it will cause serious harm to the environment and human health. Therefore, it must be strictly treated before being discharged in compliance with standards or reused.

[0003] Current methods for desulfurizing sulfur-containing wastewater often involve inserting pipes into the wastewater and using air pumps and pipes to aerate the wastewater, allowing oxygen to come into contact with the sulfides in the wastewater and undergo a chemical reaction, thus achieving desulfurization. However, due to the resistance of the wastewater to air, the contact between oxygen and sulfides in the wastewater is not sufficient, requiring a longer time to achieve complete desulfurization. Furthermore, after desulfurization, the wastewater needs to be filtered. However, during filtration, impurities remain on the filter plates. When the wastewater volume is large and the filter plates are clogged, the system needs to be stopped, the filter plates disassembled and cleaned, and the filter plates reinstalled before filtration can continue. This undoubtedly affects the wastewater treatment efficiency. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a sulfur-containing wastewater treatment and purification device for oil and gas fields to solve the technical problems mentioned above in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sulfur-containing wastewater treatment and purification device for oil and gas fields, comprising a base, a treatment tank, a storage tank, and a filter tank respectively mounted on the top of the base; a rotating tube installed inside the treatment tank; a gas distributor head fixed to the top of the rotating tube; a gas distribution pipe connected to the outer surface of the gas distributor head; a liquid distribution pipe connected above the outer surface of the rotating tube; a through hole penetrating the outer surface of the liquid distribution pipe; a gas pump installed on one side of the top of the treatment tank; a gas supply pipe connected to the outlet end of the gas pump; and a rotatable connection between the bottom end of the gas supply pipe and the gas distributor head via a rotary joint. A first water pump is installed on one side, and the inlet of the first water pump is connected to the treatment tank through a first water suction pipe. The outlet of the first water pump is connected to a first water delivery pipe, and one end of the first water delivery pipe extends into the interior of the treatment tank and is connected to an annular pipe. An atomizing nozzle is installed at the bottom of the annular pipe. A switching frame is slidably connected inside the filter tank, and a filter plate is provided on the inner side of the switching frame. Hydraulic rods are installed on both sides of the filter tank through mounting plates, and the output ends of the hydraulic rods are fixed to the switching frame. A motor is installed at the bottom of the treatment tank, and a drive gear is connected to the output end of the motor. A driven gear is provided below the outer surface of the rotating tube.

[0006] Furthermore, the inner side of the switching frame is provided with two sets of mounting cavities, the top of the filter plate is fixed with a handle, and the filter plate is detachably connected to the mounting cavity, and the outer surface of the switching frame is provided with a rubber layer.

[0007] By adopting the above technical solution, when the filter plate is clogged, the two sets of mounting cavities can be seamlessly connected and used interchangeably without stopping the machine to replace the filter plate. The handle makes it easy to remove the filter plate from the mounting cavity. The rubber layer increases the airtightness between the switching frame and the filter box, thereby avoiding water leakage.

[0008] Furthermore, the two sides of the switching frame are fixed with sliding strips, and the inner wall of the filter box is provided with a sliding groove, and the sliding strips slide in conjunction with the sliding groove.

[0009] By adopting the above technical solution, the displacement of the switching frame is made more stable through the cooperation of the slide bar and the slide groove.

[0010] Furthermore, a water distribution block is fixed inside the upper part of the filter box, and a drain pipe is connected to the bottom of the filter box.

[0011] By adopting the above technical solution, the sewage can be diverted under the action of the water distribution block, avoiding damage caused by the continuous impact of the water column on one position of the filter plate.

[0012] Furthermore, a second water pump is installed on the other side of the treatment box, and the inlet of the second water pump is connected to the treatment box through a second water pumping pipe, and the outlet of the second water pump is connected to the filter box through a second water supply pipe.

[0013] By adopting the above technical solution, the second water pump uses the second water pumping pipe to draw sewage, and the sewage is sent into the filter box for filtration treatment through the second water conveying pipe.

[0014] Furthermore, a liquid pump is installed on one side of the liquid storage tank, and the outlet end of the liquid pump is connected to a delivery pipe, and one end of the delivery pipe is rotatably connected to a rotating tube through a rotary joint.

[0015] By adopting the above technical solution, the pumping end of the pumping pump extracts the desulfurizing agent, which is then sent into the rotating tube through the delivery pipe and subsequently diverted by the multi-component liquid pipe.

[0016] Furthermore, the top of the air distribution pipe is provided with several sets of jet nozzles and liquid-blocking caps, with the liquid-blocking caps located directly above the jet nozzles.

[0017] By adopting the above technical solution, several sets of jet nozzles can spray ozone evenly, increasing the contact area with sewage, while the liquid-blocking cap can prevent falling sewage from entering the jet nozzles.

[0018] Furthermore, stirring blades are fixed on both sides of the separating tube, and one side of some of the stirring blades is fixed to the rotating tube.

[0019] By adopting the above technical solution, the stirring blades can stir the sewage, making the sewage and desulfurizing agent react more fully. In addition, the welding and fixing of some stirring blades to the rotating pipe can enhance the stability of the liquid separator and prevent the liquid separator from being damaged due to excessive resistance when rotating.

[0020] Furthermore, a control panel is installed on the outer surface of the processing box, and the first water pump, the second water pump, the air pump, and the motor are all electrically connected to the control panel.

[0021] By adopting the above technical solution, staff can control the first water pump, the second water pump, the air pump, and the motor through the control panel.

[0022] Furthermore, the top side of the treatment tank is provided with a water inlet and an automatic pressure relief valve, and the top of the water inlet is provided with a sealing cap.

[0023] By adopting the above technical solution, when ozone is continuously filled into the treatment tank, the pressure inside the treatment tank will increase, which will affect the working efficiency of the gas pump. The automatic hydraulic valve can automatically release pressure when the internal air pressure reaches the threshold, so as to avoid the situation where the gas pump cannot input ozone due to the high internal pressure. In addition, the inlet makes it easy for the staff to add sewage into the treatment tank, and the sealing cover can prevent water mist from being blown out of the treatment tank by ozone.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. In operation, this invention employs a pump to extract desulfurizing agent, which is then delivered through a delivery pipe into a rotating pipe and subsequently into a distribution pipe. The desulfurizing agent is evenly dispersed in the wastewater through through-holes. Simultaneously, the motor starts, causing the drive gear to rotate, which in turn rotates the rotating pipe. This rotation, in turn, rotates the distribution pipe, resulting in a more uniform distribution of the desulfurizing agent. A stirring plate further agitates the wastewater, ensuring a more thorough reaction between the desulfurizing agent and the wastewater. Simultaneously, a first water pump extracts wastewater, which is then sprayed out through an atomizing nozzle. An air pump extracts ozone and inputs it into a gas distributor. The ozone is then sprayed upwards through the gas distributor and nozzles, causing the downward-falling water mist to collide with the upward-spraying ozone, ensuring sufficient contact and reaction between the water mist and ozone. The rotation of the rotating pipe further rotates the distribution pipe, resulting in more uniform contact between the ozone and water mist, leading to a more complete reaction. This invention achieves simultaneous desulfurization of wastewater by using ozone and desulfurizing agent, significantly increasing the desulfurization speed and resulting in a more ideal desulfurization effect.

[0026] 2. This utility model features a switching frame and a hydraulic rod. The switching frame has two sets of mounting cavities. When filtering wastewater, the wastewater falls into one set of mounting cavities, where the filter plate filters the wastewater. When the filter plate becomes clogged, the operator can place a clean filter plate into the other set of mounting cavities. The operator then operates the hydraulic rod, which retracts, causing the switching frame to shift. This pushes one set of mounting cavities out of the filter box, while the other set is inserted into the filter box. At this point, the clean filter plate can immediately filter the wastewater, and the operator can remove the clogged filter plate for cleaning. Through this design, there is no need to stop the machine to replace the filter plate, greatly improving the wastewater treatment efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic cross-sectional view of the processing box of this utility model;

[0029] Figure 3 This is a schematic diagram of the rotating tube structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the jet nozzle structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the filter box structure of this utility model;

[0032] Figure 6 This is a schematic diagram of the switching frame structure of this utility model;

[0033] Figure 7 This is a schematic cross-sectional view of the filter box of this utility model.

[0034] In the diagram: 1. Base; 2. Processing tank; 3. Storage tank; 4. Filter tank; 5. Control panel; 6. Rotary joint; 7. Pump; 8. Infusion pipe; 9. Rotary tube; 10. Motor; 11. First water pump; 12. First water suction pipe; 13. First water delivery pipe; 14. Second water pump; 15. Second water suction pipe; 16. Second water delivery pipe; 17. Air pump; 18. Air delivery pipe; 19. Water inlet; 20. Automatic 21. Pressure relief valve; 22. Switching frame; 23. Mounting plate; 24. Drain pipe; 25. Driven gear; 26. Liquid distribution pipe; 27. Stirring blade; 28. Slide groove; 29. ​​Gas distributor head; 30. Gas distribution pipe; 31. Annular pipe; 32. Atomizing nozzle; 33. Water distribution block; 34. Air jet nozzle; 35. Through hole; 36. Liquid baffle cap; 37. Hydraulic rod; 38. Sliding bar; 39. Filter plate; 40. Handle. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] Example 1: A sulfur-containing wastewater treatment and purification device for oil and gas fields, such as... Figures 1-7As shown, the system includes a base 1, with a processing tank 2, a storage tank 3, and a filter tank 4 respectively mounted on the top of the base 1. A liquid pump 7 is installed below one side of the storage tank 3, and the outlet end of the liquid pump 7 is connected to a delivery pipe 8. One end of the delivery pipe 8 is rotatably connected to a rotating tube 9 via a rotary joint 6. The liquid pump 7 draws out the desulfurizing agent, which is then sent to the rotating tube 9 through the delivery pipe 8 and subsequently divided by a multi-component liquid pipe 26. The rotating tube 9 is installed inside the processing tank 2, and a gas distributor 29 is fixed to the top of the rotating tube 9. A gas distributor 30 is connected to the outer surface of the gas distributor 29, and a gas distribution pipe 30 is connected to the upper part of the outer surface of the rotating tube 9. The treatment tank 2 has a liquid distribution pipe 26 with a through hole 35 on its outer surface. An air pump 17 is installed on one side of the top of the treatment tank 2, and the outlet of the air pump 17 is connected to an air supply pipe 18. The bottom end of the air supply pipe 18 is rotatably connected to an air distribution head 29 via a rotary joint 6. A first water pump 11 is installed on one side of the treatment tank 2, and the inlet of the first water pump 11 is connected to the treatment tank 2 via a first water suction pipe 12. The outlet of the first water pump 11 is connected to a first water supply pipe 13, and one end of the first water supply pipe 13 extends into the interior of the treatment tank 2 and connects to an annular pipe 31. An atomizing nozzle 32 is installed at the bottom of the annular pipe 31. A second water pump 14 is installed on the other side of the treatment tank 2. The inlet of the second water pump 14 is connected to the treatment tank 2 through a second water suction pipe 15, and the outlet of the second water pump 14 is connected to the filter tank 4 through a second water delivery pipe 16. The second water pump 14 uses the second water suction pipe 15 to draw sewage, and the sewage is sent into the filter tank 4 through the second water delivery pipe 16 for filtration. A switching frame 21 is slidably connected inside the filter tank 4, and a filter plate 39 is provided on the inner side of the switching frame 21. The inner side of the switching frame 21 has two sets of mounting cavities. A handle 40 is fixed to the top of the filter plate 39, and the filter plate 39 is detachably connected to the mounting cavity. The outer surface of the frame 21 is provided with a rubber layer. When the filter plate 39 is clogged, the two sets of mounting cavities can be seamlessly connected and replaced without stopping the machine to replace the filter plate 39. The filter plate 39 can be easily removed from the mounting cavity by the handle 40. The rubber layer increases the airtightness between the switching frame 21 and the filter box 4, thereby avoiding water leakage. Hydraulic rods 37 are installed on both sides of the filter box 4 through the mounting plate 22, and the output end of the hydraulic rods 37 is fixed to the switching frame 21. A motor 10 is installed at the bottom of the treatment box 2, and the output end of the motor 10 is connected to the drive gear 24. A driven gear 25 is provided below the outer surface of the rotating tube 9.

[0038] See Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7In the above embodiment, the two sides of the switching frame 21 are fixed with sliding strips 38, and the inner wall of the filter box 4 is provided with a sliding groove 28. The sliding strips 38 and the sliding groove 28 are slidably engaged. With the cooperation of the sliding strips 38 and the sliding groove 28, the displacement of the switching frame 21 is more stable.

[0039] See Figure 2 In the above embodiment, a water distribution block 33 is fixed inside the upper part of the filter box 4, and a drain pipe 23 is connected to the bottom of the filter box 4. Under the action of the water distribution block 33, the sewage can be diverted to avoid the water column continuously impacting one position of the filter plate 39 and causing damage.

[0040] See Figure 1 In the above embodiment, the outer surface of the processing box 2 is equipped with a control panel 5, and the first water pump 11, the second water pump 14, the air pump 17 and the motor 10 are all electrically connected to the control panel 5. The operator can control the first water pump 11, the second water pump 14, the air pump 17 and the motor 10 through the control panel 5.

[0041] See Figures 1-2 In the above embodiment, the top side of the treatment tank 2 is provided with a water inlet 19 and an automatic pressure relief valve 20, and the top of the water inlet 19 is provided with a sealing cover. When ozone is continuously filled into the treatment tank 2, the pressure inside the treatment tank 2 will increase, which will affect the working efficiency of the air pump 17. The automatic hydraulic valve can automatically release pressure when the internal air pressure reaches the threshold, so as to avoid the situation where the air pump 17 cannot input ozone due to the high internal pressure. The water inlet makes it convenient for the staff to add sewage into the treatment tank 2, and the sealing cover can prevent water mist from being blown out of the treatment tank 2 by ozone.

[0042] Example 2: To prevent wastewater from entering the jet nozzle, Example 2 is an improvement on Example 1. (See attached document.) Figures 2-4 The top of the gas distribution pipe 30 is provided with several sets of jet nozzles 34 and liquid-blocking caps 36, with the liquid-blocking caps 36 located directly above the jet nozzles 34. The several sets of jet nozzles 34 can spray ozone evenly, increasing the contact area with sewage, while the liquid-blocking caps 36 can prevent falling sewage from entering the jet nozzles 34. At the same time, when ozone is sprayed out, it can be dispersed under the obstruction of the liquid-blocking caps 36, so that it can have more sufficient contact with sewage.

[0043] Example 3: To ensure a complete reaction between the wastewater and the sulfiding agent, Example 3 is an improvement upon Example 1. (See attached document for details.) Figures 2-3Both sides of the liquid distribution pipe 26 are fixed with stirring blades 27, and one side of some of the stirring blades 27 is fixed to the rotating pipe 9. The stirring blades 27 can stir the sewage, so that the sewage and desulfurizing agent can react more fully. The welding and fixing of some of the stirring blades 27 to the rotating pipe 9 can enhance the stability of the liquid distribution pipe 26 and prevent the liquid distribution pipe 26 from being damaged due to excessive resistance when rotating.

[0044] The implementation principle of this utility model is as follows: First, the staff adds sulfur-containing wastewater into the treatment tank 2. The pump 7 extracts the desulfurizing agent, which is then sent to the rotating tube 9 through the delivery pipe 8, and then into the distribution pipe 26. The desulfurizing agent is evenly dispersed in the wastewater through the through hole 35. At this time, the motor 10 starts, causing the drive gear 24 to drive the driven gear 25 to rotate, which in turn causes the rotating tube 9 to rotate. The rotation of the rotating tube 9 drives the distribution pipe 26 to rotate, making the distribution of the desulfurizing agent more uniform. At the same time, the stirring plate stirs the wastewater, so that the desulfurizing agent reacts more fully with the wastewater. Simultaneously, the first water pump 11 extracts wastewater, which is sprayed out through the atomizing nozzle 32. The gas pump 17 extracts ozone and inputs it into the gas distributor 29. The ozone is sprayed upward through the gas distributor 30 and the nozzle, so that the downward-falling water mist and the ozone are sprayed upward. The ozone sprayed from the top is offset, allowing the water mist to fully contact and react with the ozone. The rotation of the rotating pipe 9 causes the gas distribution pipe 30 to rotate, making the contact between the ozone and water mist more uniform and the reaction more thorough. The desulfurized wastewater is sent into the filter box 4 by the second water pump 14. The wastewater will fall into one set of installation chambers, where the filter plate 39 can filter the wastewater. When the filter plate 39 becomes clogged, the operator can place a clean filter plate 39 into another set of installation chambers. Then, the operator can operate the hydraulic rod 37. After the hydraulic rod 37 retracts, the switching frame 21 is displaced, causing one set of installation chambers to be pushed out of the filter box 4, while the other set of installation chambers is sent into the filter box 4. At this time, the clean filter plate 39 can immediately filter the wastewater, and the operator can remove the clogged filter plate 39 for cleaning.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A sulfur-containing wastewater treatment and purification device for oil and gas fields, comprising a base, characterized in that: The top of the base is equipped with a processing tank, a liquid storage tank, and a filter tank. A rotating tube is installed inside the processing tank, and a gas distributor is fixed to the top of the rotating tube. A gas distribution pipe connects to the outer surface of the gas distributor, and a liquid distribution pipe connects to the upper surface of the rotating tube. A through hole is passed through the outer surface of the liquid distribution pipe. An air pump is installed on one side of the top of the processing tank, and the outlet of the air pump is connected to an air supply pipe. The bottom end of the air supply pipe is rotatably connected to the gas distributor via a rotary joint. A first water pump is installed on one side of the processing tank, and the inlet of the first water pump is connected to a second... A water pump is connected to the treatment tank. The outlet of the first water pump is connected to a first water delivery pipe, and one end of the first water delivery pipe extends into the interior of the treatment tank and is connected to an annular pipe. An atomizing nozzle is installed at the bottom of the annular pipe. A switching frame is slidably connected inside the filter tank, and a filter plate is provided on the inner side of the switching frame. Hydraulic rods are installed on both sides of the filter tank through mounting plates, and the output end of the hydraulic rods is fixed to the switching frame. A motor is installed at the bottom of the treatment tank, and a drive gear is connected to the output end of the motor. A driven gear is provided below the outer surface of the rotating tube.

2. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 1, characterized in that: The inner side of the switching frame is provided with two sets of mounting cavities, the top of the filter plate is fixed with a handle, and the filter plate is detachably connected to the mounting cavity. The outer surface of the switching frame is provided with a rubber layer.

3. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 1, characterized in that: The switching frame is fixed with slide bars on both sides, and the inner wall of the filter box is provided with a sliding groove, and the slide bars slide in conjunction with the sliding groove.

4. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 1, characterized in that: A water distribution block is fixed inside the upper part of the filter box, and a drain pipe is connected to the bottom of the filter box.

5. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 1, characterized in that: A second water pump is installed on the other side of the treatment tank, and the inlet of the second water pump is connected to the treatment tank through a second water pumping pipe, and the outlet of the second water pump is connected to the filter tank through a second water supply pipe.

6. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 5, characterized in that: A liquid pump is installed on one side of the liquid storage tank, and the outlet end of the liquid pump is connected to a delivery pipe. One end of the delivery pipe is rotatably connected to a rotary tube via a rotary joint.

7. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 1, characterized in that: The top of the air distribution pipe is provided with several sets of air nozzles and liquid-blocking caps, with the liquid-blocking caps located directly above the air nozzles.

8. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 1, characterized in that: Both sides of the separator are fixed with stirring blades, and one side of some of the stirring blades is fixed to the rotating tube.

9. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 6, characterized in that: The outer surface of the processing box is equipped with a control panel, and the first water pump, the second water pump, the air pump, and the motor are all electrically connected to the control panel.

10. The oil and gas field sulfur-containing wastewater treatment and purification equipment according to claim 1, characterized in that: The top side of the treatment tank is equipped with a water inlet and an automatic pressure relief valve, and the top of the water inlet is equipped with a sealing cap.

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