CN221235297U - Sewage treatment settling cask for oil field - Google Patents
Sewage treatment settling cask for oil field Download PDFInfo
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- CN221235297U CN221235297U CN202323027369.5U CN202323027369U CN221235297U CN 221235297 U CN221235297 U CN 221235297U CN 202323027369 U CN202323027369 U CN 202323027369U CN 221235297 U CN221235297 U CN 221235297U
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- tank body
- tank
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- pipe
- water
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- 239000010865 sewage Substances 0.000 title claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000003921 oil Substances 0.000 claims abstract description 67
- 239000010779 crude oil Substances 0.000 claims abstract description 45
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 229920000742 Cotton Polymers 0.000 claims description 23
- 238000005192 partition Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Removal Of Floating Material (AREA)
Abstract
The utility model relates to a sewage treatment sedimentation tank for an oil field, which belongs to the technical field of crude oil extraction equipment and comprises a tank body, wherein the top of the tank body is provided with a vent pipe and a water inlet pipe for feeding sewage into the tank body, and the lower part of the tank body is provided with a water outlet pipe for discharging sewage; the baffle is fixedly arranged in the tank body to divide the internal space of the tank body into a main chamber and an auxiliary chamber, the water inlet pipe is positioned right above the main chamber, and a gap for communicating the main chamber and the auxiliary chamber is reserved between the top end of the baffle and the top of the tank body; the water adding pipe is connected to the outer side wall of the middle part of the tank body and is communicated with the main cavity, the water adding pipe is used for injecting clear water so that the liquid level in the main cavity is raised to enable crude oil floating on the water surface of the main cavity to flow into the auxiliary cavity from the notch, and the auxiliary cavity is communicated with the oil discharging pipe; the oil absorption assembly is arranged at the top of the tank body and is used for absorbing residual crude oil on the water surface of the main chamber. The sewage treatment settling tank for the oil field not only can settle the sewage of the oil field, but also can effectively remove crude oil components in the sewage.
Description
Technical Field
The utility model belongs to the technical field of crude oil extraction equipment, and particularly relates to a sewage treatment sedimentation tank for an oil field.
Background
The first step in oilfield sewage treatment is to send the sewage into a settling tank for settling, which is already a relatively mature prior art. In the sedimentation tank, not only can part of sand grains in the sewage be settled at the bottom of the tank, but also the sewage can be subjected to oil-water separation. Typically, the crude oil component floats on the water surface, and a portion of the settling tank is equipped with an oil pump by which crude oil floating on the water surface is pumped.
However, it has been shown that the oil pump does not pump the crude oil floating on the water surface in the settling tank, which results in the sewage from the settling tank still containing more or less crude oil components, and a large amount of chemicals needs to be added subsequently to completely remove the crude oil contained in the sewage. Therefore, the oilfield sewage settling tank in the prior art has the technical problem of poor oil removal effect.
Disclosure of utility model
The utility model provides a sewage treatment settling tank for an oil field, which is used for solving the technical problem that a large amount of chemicals still need to be added to clean crude oil components contained in sewage after the sewage is treated by the existing settling tank.
The utility model is realized by the following technical scheme: an oilfield wastewater treatment settling tank comprising:
The sewage treatment device comprises a tank body, wherein the top of the tank body is provided with a vent pipe and a water inlet pipe for feeding sewage into the tank body, and the lower part of the tank body is provided with a water outlet pipe for discharging sewage;
The baffle is fixedly arranged in the tank body to divide the internal space of the tank body into a main chamber and an auxiliary chamber, the water inlet pipe is positioned right above the main chamber, and a gap for communicating the main chamber and the auxiliary chamber is reserved between the top end of the baffle and the top of the tank body;
The water adding pipe is connected to the outer side wall of the middle part of the tank body and is communicated with the main cavity, the water adding pipe is used for injecting clear water so that the liquid level in the main cavity is raised to enable crude oil floating on the water surface of the main cavity to flow into the auxiliary cavity from the gap, and the auxiliary cavity is communicated with an oil discharge pipe;
the oil absorption assembly is arranged at the top of the tank body and is used for absorbing residual crude oil on the water surface of the main chamber.
Further, in order to better implement the present utility model, the tank includes:
The top of the tank body is provided with a filling opening, the partition plate is fixedly arranged in the tank body, and the water adding pipe, the water draining pipe and the oil draining pipe are all connected to the outer side wall of the tank body;
The tank cover is bolted on the tank body and covers the filling opening, and the vent pipe, the water inlet pipe and the oil absorption assembly are all installed on the tank cover.
Further, in order to better implement the present utility model, the oil absorbing assembly includes:
The oil absorption cotton is arranged on the carrier and used for absorbing residual crude oil on the water surface of the main chamber;
the driving piece is arranged on the tank cover and connected with the carrier to drive the oil absorbing cotton to move back and forth between the notch and a first position, and the first position is far away from the notch.
Further, in order to better implement the present utility model, the carrier includes:
The top end of the connecting plate is connected with the driving piece;
the notch is positioned at the left side of the first position, and the length direction of the connecting plate is the front-back direction;
The bottom ends of the support plates are fixedly connected with the bottom ends of the connecting plates, an included angle alpha is formed between the support plates and the connecting plates, the number of the support plates is two, and the two support plates are respectively positioned at the left side and the right side of the connecting plates;
Each support plate section is fixedly bonded with one piece of oil absorption cotton, and the oil absorption cotton is positioned on one side deviating from the connecting plate.
Further, in order to better implement the present utility model, the carrier further includes:
Reinforcing rib plates are arranged between the carrier plates and the connecting plates.
Further, in order to better realize the utility model, the included angle between the carrier plate and the connecting plate is in the range of 45-60 degrees.
Further, in order to better implement the present utility model, the driving member includes:
The lead screw is rotatably arranged on the tank cover;
the guide rod is fixedly arranged on the tank cover and is parallel to the lead screw;
The sliding block is provided with a screw hole and a guide hole, the screw rod is in threaded connection with the screw hole, and the guide rod is in sliding connection with the guide hole;
The rotary power source is arranged on the tank cover and connected with the screw rod so as to drive the screw rod to rotate;
the top of the connecting plate is connected with the bottom of the sliding block.
Further, in order to better implement the present utility model, the rotary power source includes:
And the outer wall of the tank cover is provided with a mounting plate, the motor is mounted on the mounting plate, and the rotating shaft of the motor is connected with the screw rod.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model provides a sewage treatment sedimentation tank for an oil field, which comprises a tank body, a partition plate, a water adding pipe and an oil absorption group component, wherein the top of the tank body is provided with a vent pipe and a water inlet pipe for feeding sewage into the tank body, the lower part of the tank body is provided with a water outlet pipe for discharging sewage, the partition plate is fixedly arranged in the tank body so as to divide the internal space of the tank body into a main cavity and an auxiliary cavity, the water inlet pipe is positioned right above the main cavity, thus the oil field sewage is injected into the main cavity by the water inlet pipe, the sewage stands and precipitates in the main cavity, a gap for communicating the main cavity and the auxiliary cavity is reserved between the top end of the partition plate and the top of the tank body, the water adding pipe is connected to the outer side wall of the middle part of the tank body and is communicated with the main cavity, the water adding pipe is used for injecting clear water so that the liquid level in the main cavity is raised to enable crude oil floating on the water surface of the main cavity to flow into the auxiliary cavity from the gap, the auxiliary cavity is communicated with the oil discharging pipe is arranged at the top of the tank body, the oil absorption component is used for adsorbing residual crude oil on the water surface of the main cavity.
When the sewage treatment device is specifically used, sewage is injected into the main cavity through the water inlet pipe, the sewage water surface in the main cavity is positioned below the notch, after the sewage treatment device is kept for a period of time, crude oil in the sewage floats on the water surface, clear water is added into the sewage from the middle through the water inlet pipe, so that the liquid level in the main cavity rises, most of the crude oil floating on the liquid level flows into the auxiliary cavity from the notch under the action of gravity, the clear water filling amount is that the sewage water surface is approximately flush with the notch, after most of the crude oil flows away from the notch, the sewage filling is stopped, and then the crude oil floating on the water surface of the main cavity is sucked by the oil suction component. The sewage from which the crude oil is removed is discharged from the drain pipe, and the crude oil collected in the sub-chamber is discharged from the drain pipe.
Through the structure, the oil field sewage treatment sedimentation tank provided by the utility model can remove crude oil components in oil field sewage more efficiently, has a simple structure and lower cost, and has novel and ingenious way of removing crude oil floating on the water surface and strong practicability.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a sewage treatment settling tank for an oilfield provided by an embodiment of the utility model;
FIG. 2 is an exploded view of a settling tank for oilfield sewage treatment provided by an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a oilfield wastewater treatment settling tank provided by an embodiment of the utility model;
FIG. 4 is a reference diagram for the use of a sedimentation tank for oilfield sewage treatment provided by an embodiment of the present utility model;
Fig. 5 is a schematic view of a structure formed by an oil absorbing assembly and a sliding block according to an embodiment of the present utility model;
FIG. 6 is another view of the structure of FIG. 5;
Fig. 7 is a front view of the structure shown in fig. 5.
In the figure:
1-a tank body; 2-a tank cover; 3-a vent pipe; 4-a water inlet pipe; 5-a drain pipe; 6-a separator; 7-a main chamber; 8-a secondary chamber; 9-notch; 10-a water adding pipe; 11-oil drain pipe; 12-oil absorbing cotton; 13-connecting plates; 14-a carrier plate; 15-reinforcing rib plates; 16-screw rod; 17-a guide bar; 18-a slider; 19-an electric motor; 20-mounting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
In this embodiment, the concepts of up, down, left, right, front, and rear are shown in fig. 4, where the top shown in fig. 4 is up, down, left, right, one end extending out of the paper is front, and one end extending into the paper is rear.
Example 1:
as shown in fig. 1 to 7, the sewage treatment settling tank for oil field provided in this embodiment includes a tank body, a partition plate 6, a water adding pipe 10 and an oil absorption group assembly, wherein:
The bottom of the tank body is provided with the landing leg to prop the tank body off the bottom, the top of the tank body is equipped with breather pipe 3 and is used for sending sewage into the inlet tube 4 of the tank body, and breather pipe 3 is convenient for the internal and external air intercommunication of tank, is equipped with the drain pipe 5 that is used for discharging sewage in the lower part of the tank body.
Baffle 6 sets firmly in the jar body to separate the inner space of jar body into main cavity 7 and auxiliary chamber 8, inlet tube 4 is located directly over main cavity 7, and drain pipe 5 is linked together with above-mentioned main cavity 7, and like this, inlet tube 4 injects oil field sewage into above-mentioned main cavity 7, and the sewage is stewed in main cavity 7 and is deposited, and leaves the breach 9 that is equipped with intercommunication main cavity 7 and auxiliary chamber 8 between the top of baffle 6 and the top of jar body.
The water adding pipe 10 is connected to the middle outer side wall of the tank body and is communicated with the main chamber 7, the water adding pipe 10 is used for injecting clear water so that the liquid level in the main chamber 7 rises to enable crude oil floating on the water surface of the main chamber 7 to flow into the auxiliary chamber 8 from the notch 9, the auxiliary chamber 8 is communicated with the oil discharging pipe 11, the oil absorbing component is arranged at the top of the tank body and is used for absorbing residual crude oil on the water surface of the main chamber 7.
In specific use, sewage is injected into the main chamber 7 through the water inlet pipe 4, the sewage water surface in the main chamber 7 is positioned below the notch 9 and above the water inlet pipe 10, after the main chamber is placed for a period of time, crude oil in the sewage floats on the water surface, clear water is added into the sewage from the middle through the water inlet pipe 10, so that the liquid level in the main chamber 7 rises, most crude oil floating on the liquid level flows into the auxiliary chamber 8 from the notch 9 under the action of gravity, the fresh water filling amount is that the sewage water surface is approximately flush with the notch 9, after most of the crude oil flows away from the notch 9, the filling of the sewage is stopped, and then the crude oil floating on the water surface of the main chamber 7 is sucked by the oil suction component. The sewage from which the crude oil is removed is discharged from the drain pipe 5, and the crude oil collected in the sub-chamber 8 is discharged from the drain pipe 11.
Through above-mentioned structure, the sewage treatment settling cask for oil field that this embodiment provided can be more high-efficient with the crude oil composition removal in the oil field sewage, simple structure, and the cost is lower, and its mode of getting rid of the crude oil that floats on the surface of water is novel and ingenious moreover, and the practicality is strong. Of course, in this embodiment, a sensor is also installed on the side wall of the main chamber 7, so that a user can accurately know the level of the liquid in the main chamber 7. The volume ratio of the main chamber 7 to the sub chamber 8 is 10:1.
Optionally, the tank body in this embodiment includes a tank body 1 and a tank cover 2, a filling opening is provided at the top of the tank body 1, and a partition plate 6 is fixedly provided at the lower part in the tank body 1, so that the internal space of the tank body 1 is divided into an independent main chamber 7 and an independent auxiliary chamber 8, and a water adding pipe 10, a water draining pipe 5 and an oil draining pipe 11 are all connected to the outer side wall of the tank body 1. The tank cover 2 is bolted on the tank body 1 and covers the filling opening, and the breather pipe 3, the water inlet pipe 4 and the oil absorption assembly are all arranged on the tank cover 2. Thus, a user can conveniently open the tank cover 2, thereby cleaning and maintaining the internal space of the tank body, and also conveniently disassembling and assembling the oil absorption assembly.
An alternative implementation of this embodiment is as follows: the oil absorbing assembly comprises an oil absorbing cotton 12 and a driving piece, wherein the oil absorbing cotton 12 is arranged on a carrier, the oil absorbing cotton 12 is used for absorbing residual crude oil on the water surface of the main chamber 7, the driving piece is arranged on the tank cover 2 and connected with the carrier, so that the driving piece is used for driving the carrier to drive the oil absorbing cotton 12 to move in the tank body, the specific moving mode is that the oil absorbing cotton moves back and forth between the notch 9 and a first position, and the first position refers to a position, away from the notch 9, in the tank body.
When the oil absorbing cotton 12 moves back and forth between the first position and the notch 9, the crude oil floating on the water surface will be absorbed and guided on the oil absorbing cotton 12, and the carrier and the oil absorbing cotton 12 also have the function of a scraper, and in the process of moving towards the notch 9, the carrier and the oil absorbing cotton 12 also can push the crude oil floating on the water surface towards the notch 9, so that the crude oil flows away from the notch 9.
Optionally, the carrier in this embodiment includes a connection plate 13 and a carrier plate 14, where the gap 9 is defined in the workshop in the first position, the top end of the connection plate 13 in this embodiment is connected to the driving member, the connection plate 13 is parallel to the partition 6, and the length direction of the connection plate 13 is the front-rear direction. The bottom end of the carrier plate 14 is welded or integrally formed with the bottom end of the connecting plate 13, and an included angle alpha is formed between the carrier plate 14 and the connecting plate 13, wherein the value range of alpha is 45-60 degrees. The number of the carrier plates 14 is two, and the two carrier plates 14 are respectively positioned at the left side and the right side of the connecting plate 13. Each support plate 14 section is fixedly adhered with an oil absorbing cotton 12, and the oil absorbing cotton 12 is positioned on one side away from the connecting plate 13.
Thus, when the driving member drives the carrier to move towards one side close to the notch 9 (i.e. to move towards the left), the oil absorbing cotton 12 on the carrier plate 14 positioned on the left side of the connecting plate 13 pushes the crude oil on the water surface towards the notch 9, and the oil absorbing cotton 12 can absorb part of the crude oil, otherwise, the other oil absorbing cotton 12 can also absorb part of the crude oil.
In order to enhance the structural strength of the carrier, in this embodiment, a reinforcing rib 15 is further provided between the carrier plate 14 and the connecting plate 13.
An alternative implementation of this embodiment is as follows: the driving piece comprises a screw 16, a guide rod 17, a sliding block 18 and a rotary power source, wherein the screw 16 is rotatably arranged on the tank cover 2, the guide rod 17 is fixedly arranged on the tank cover 2, the guide rod 17 is parallel to the screw 16, the sliding block 18 is provided with a screw hole and a guide hole, the screw 16 is in threaded connection with the screw hole, the guide rod 17 is in sliding connection with the guide hole, the rotary power source is arranged on the tank cover 2, and the rotary power source is connected with the screw 16 to drive the screw 16 to rotate. The top end of the connecting plate 13 is connected with the bottom end of the sliding block 18. Alternatively, the rotary power source in this embodiment is an electric motor 19, a mounting plate 20 is provided on the outer wall of the tank cover 2, the electric motor 19 is mounted on the mounting plate 20, and the rotating shaft of the electric motor 19 is connected to the screw 16, so that the screw 16 is driven to rotate by the electric motor 19.
When the screw 16 rotates, the slide block 18 is driven to drive the carrier to translate.
Of course, the device also comprises a power supply and a controller, wherein the controller is electrically connected with the power supply, the liquid level sensor and the motor 19 so as to control the motor 19 to operate, the water inlet pipe 4, the water outlet pipe 5, the water inlet pipe 10 and the oil outlet pipe 11 are all provided with electromagnetic valves, and the controller is also electrically connected with the electromagnetic valves so as to control water inlet and outlet and discharge crude oil. The controller can be a PLC or a singlechip or a computer.
The above description is merely an embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present utility model, and it is intended to cover the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. A sewage treatment settling tank for an oilfield, comprising:
The sewage treatment device comprises a tank body, wherein the top of the tank body is provided with a vent pipe and a water inlet pipe for feeding sewage into the tank body, and the lower part of the tank body is provided with a water outlet pipe for discharging sewage;
The baffle is fixedly arranged in the tank body to divide the internal space of the tank body into a main chamber and an auxiliary chamber, the water inlet pipe is positioned right above the main chamber, and a gap for communicating the main chamber and the auxiliary chamber is reserved between the top end of the baffle and the top of the tank body;
The water adding pipe is connected to the outer side wall of the middle part of the tank body and is communicated with the main cavity, the water adding pipe is used for injecting clear water so that the liquid level in the main cavity is raised to enable crude oil floating on the water surface of the main cavity to flow into the auxiliary cavity from the gap, and the auxiliary cavity is communicated with an oil discharge pipe;
the oil absorption assembly is arranged at the top of the tank body and is used for absorbing residual crude oil on the water surface of the main chamber.
2. The oilfield sewage treatment settling tank of claim 1, wherein the tank body comprises:
The top of the tank body is provided with a filling opening, the partition plate is fixedly arranged in the tank body, and the water adding pipe, the water draining pipe and the oil draining pipe are all connected to the outer side wall of the tank body;
The tank cover is bolted on the tank body and covers the filling opening, and the vent pipe, the water inlet pipe and the oil absorption assembly are all installed on the tank cover.
3. The oilfield sewage treatment settling tank of claim 2, wherein: the oil absorbing assembly includes:
The oil absorption cotton is arranged on the carrier and used for absorbing residual crude oil on the water surface of the main chamber;
the driving piece is arranged on the tank cover and connected with the carrier to drive the oil absorbing cotton to move back and forth between the notch and a first position, and the first position is far away from the notch.
4. A oilfield sewage treatment settling tank according to claim 3, wherein said carrier comprises:
The top end of the connecting plate is connected with the driving piece;
the notch is positioned at the left side of the first position, and the length direction of the connecting plate is the front-back direction;
The bottom ends of the support plates are fixedly connected with the bottom ends of the connecting plates, an included angle alpha is formed between the support plates and the connecting plates, the number of the support plates is two, and the two support plates are respectively positioned at the left side and the right side of the connecting plates;
Each support plate section is fixedly bonded with one piece of oil absorption cotton, and the oil absorption cotton is positioned on one side deviating from the connecting plate.
5. The oilfield wastewater treatment settling tank of claim 4, wherein the carrier further comprises:
Reinforcing rib plates are arranged between the carrier plates and the connecting plates.
6. The oilfield sewage treatment settling tank of claim 4, wherein:
the included angle between the carrier plate and the connecting plate is 45-60 degrees.
7. The oilfield sewage treatment settling tank of claim 4, wherein the driving member comprises:
The lead screw is rotatably arranged on the tank cover;
the guide rod is fixedly arranged on the tank cover and is parallel to the lead screw;
The sliding block is provided with a screw hole and a guide hole, the screw rod is in threaded connection with the screw hole, and the guide rod is in sliding connection with the guide hole;
The rotary power source is arranged on the tank cover and connected with the screw rod so as to drive the screw rod to rotate;
the top of the connecting plate is connected with the bottom of the sliding block.
8. The oilfield sewage treatment settling tank of claim 7, wherein the rotary power source comprises:
And the outer wall of the tank cover is provided with a mounting plate, the motor is mounted on the mounting plate, and the rotating shaft of the motor is connected with the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323027369.5U CN221235297U (en) | 2023-11-09 | 2023-11-09 | Sewage treatment settling cask for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323027369.5U CN221235297U (en) | 2023-11-09 | 2023-11-09 | Sewage treatment settling cask for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221235297U true CN221235297U (en) | 2024-06-28 |
Family
ID=91600745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323027369.5U Active CN221235297U (en) | 2023-11-09 | 2023-11-09 | Sewage treatment settling cask for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221235297U (en) |
-
2023
- 2023-11-09 CN CN202323027369.5U patent/CN221235297U/en active Active
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