CN221917681U - Oil field sewage recovery device - Google Patents

Abstract

The utility model discloses an oilfield sewage recovery device, which comprises a supporting vertical plate, a impurity removing mechanism and an oil-water separating mechanism; support riser: the number of the two support vertical plates is two, the left sides of the upper surfaces of the two support vertical plates are fixedly connected with the lower surface of the settling tank, the right sides of the upper surfaces of the two support vertical plates are fixedly connected with the lower surface of the standing separation tank, the settling tank is communicated with the standing separation tank through a communicating pipe, a filter screen is arranged in the middle of the inner wall of the right side of the settling tank, the filter screen corresponds to the position of the communicating pipe, and a impurity outlet is formed in the lower end of the left side surface of the settling tank; impurity removing mechanism: the sedimentation tank is arranged in the sedimentation tank; oil-water separation mechanism: the oil field sewage recovery device is arranged in the static separation tank, can separate oil and water in the sewage, is convenient to recycle the sewage and the oil, reduces resource waste, can concentrate and collect and discharge impurities in the sewage, and improves the sewage recovery quality.

Description

Oilfield wastewater recovery device

Technical Field

The utility model relates to the technical field of sewage recovery, in particular to an oilfield sewage recovery device.

Background Art

Wastewater recycling is the use of physical, chemical and biological methods to treat wastewater, purify wastewater, reduce pollution, and even achieve wastewater recycling and reuse, making full use of water resources. Oil fields refer to specific areas of crude oil production. A large amount of water is needed as an auxiliary in crude oil production. After use, these waters will carry a large amount of impurities and some oil. These sewage needs to be treated by sewage recycling devices before they can be discharged or reused. Sewage recycling devices in the prior art often use filter screens and filter elements to directly filter and recycle sewage. Although such sewage recycling devices have a simple structure, they cannot separate the oil and water in the sewage, making it inconvenient to recycle sewage and oil, resulting in a waste of resources. For this reason, we propose an oilfield sewage recycling device.

Utility Model Content

The technical problem to be solved by the utility model is to overcome the existing defects and provide an oilfield wastewater recovery device, which can reduce resource waste and effectively solve the problems in the background technology.

In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oilfield wastewater recovery device, comprising a supporting plate, a debris removal mechanism and an oil-water separation mechanism;

Supporting plates: There are two of them. The left sides of the upper surfaces of the two supporting plates are fixedly connected to the lower surface of the sedimentation box, and the right sides of the upper surfaces of the two supporting plates are fixedly connected to the lower surface of the static separation box. The sedimentation box and the static separation box are connected through a connecting pipe. A filter screen is provided in the middle of the right inner wall of the sedimentation box. The filter screen corresponds to the position of the connecting pipe. A discharge port is provided at the lower end of the left side of the sedimentation box.

Impurity removal mechanism: set inside the sedimentation tank;

Oil-water separation mechanism: It is installed inside the static separation box, and can separate the oil and water in the sewage, so as to facilitate the recycling of sewage and oil, reduce the waste of resources, collect and discharge the impurities in the sewage, and improve the quality of sewage recycling.

Furthermore, it also includes a PLC controller, which is arranged at the right end of the front side of the front supporting vertical plate, and the input end of the PLC controller is electrically connected to an external power supply to regulate the normal operation of the device.

Furthermore, it also includes a water pump, which is arranged on the left side of the upper surface of the sedimentation tank. The water pump inlet is connected to the upper water inlet of the sedimentation tank through a water pipe, the water suction port of the water pump is connected to the external sewage discharge equipment through the water pipe, and the input end of the water pump is electrically connected to the output end of the PLC controller, so that sewage can be pumped into the device.

Furthermore, the impurity removal mechanism includes a movable plate, a mounting frame and an electric push rod. The movable plate is hinged to the middle part of the left inner wall of the sedimentation box through a hinge. The mounting frame is arranged on the left side of the upper surface of the movable plate. The electric push rod is hinged to the middle part of the top wall of the sedimentation box through a hinge. The lower end of the telescopic end of the electric push rod is rotatably connected to the mounting frame. The right side surface of the movable plate contacts the right inner wall of the sedimentation box. The input end of the electric push rod is electrically connected to the output end of the PLC controller, so as to facilitate the discharge of filtered impurities from the device.

Furthermore, the impurity removal mechanism also includes an inclined plate, which is obliquely arranged at the lower end between the front and rear inner walls of the sedimentation box, with the left end of the inclined plate lower than the right end, and the impurity outlet is coordinated with the inclined plate to guide the flow of impurities inside the device.

Furthermore, the oil-water separation mechanism includes a baffle, a transverse partition, a floating plate, a liquid density sensor, a contact sensor, a transfer pump and a longitudinal partition. The baffle is tilted at the upper end of the left inner wall of the static separation box, the longitudinal partition is arranged on the right side of the interior of the static separation box, the transverse partition is arranged between the left inner wall of the static separation box and the longitudinal partition, a solenoid valve is arranged in the through hole opened on the right side of the upper surface of the transverse partition, the floating plate is slidably connected to a slide groove opened in the middle part of the left side of the longitudinal partition, the contact sensor is arranged in the middle part of the top wall of the slide groove, the liquid density sensor is arranged on the left side of the lower surface of the floating plate, the transfer pump is arranged at the top of the longitudinal partition, the suction port of the transfer pump is connected with the oil hole arranged in the middle part of the upper surface of the floating plate through a hose, the pumping port of the transfer pump corresponds to the right side space of the longitudinal partition, the output ends of the liquid density sensor and the contact sensor are electrically connected to the input end of the PLC controller, and the input ends of the solenoid valve and the transfer pump are electrically connected to the output end of the PLC controller, so as to separate the oil and water inside the sewage.

Furthermore, it also includes a water outlet funnel and an oil outlet funnel. The water outlet funnel is arranged on the left side inside the static separation box, and the water outlet funnel corresponds to the transverse partition. The oil outlet funnel is arranged on the right side inside the static separation box. The lower end outlets of the water outlet funnel and the oil outlet funnel respectively pass through the circular holes opened on the lower surface of the bottom plate of the static separation box, so as to facilitate the separated oil and water discharge device to be collected separately.

Compared with the prior art, the beneficial effects of the utility model are: the oilfield wastewater recovery device has the following advantages:

1. Through the regulation of the PLC controller, the water pump works to pump the sewage discharged from the external sewage discharge equipment into the sedimentation tank. The impurities in the sewage are filtered through the filter and then enter the static separation tank through the connecting pipe. Under the obstruction of the baffle, the sewage flows into the left space of the longitudinal partition through the gap between the baffle and the transverse partition, thereby slowing down the impact of the sewage on the sewage inside the static separation tank when it flows into the static separation tank. Since the density of oil is less than that of water, the oil floats on the upper surface of the sewage. As the liquid level on the left side of the longitudinal partition rises, the sewage pushes the floating plate and the upper components and slides upward along the slide groove opened in the middle of the left side of the longitudinal partition until the upper surface of the floating plate contacts the contact sensor. The device transmits the touch signal to the PLC controller, the PLC controller controls the water pump to stop working, and the PLC controller starts to control the transfer pump to work. The transfer pump pumps the oil floating on the upwind side of the sewage to the right side inside the static separation box through the oil hole on the floating plate, and finally flows out of the device through the oil outlet funnel. When the liquid density detected by the liquid density sensor increases, it means that the oil has been discharged from the device. At this time, the PLC controller controls the solenoid valve to open, so that the sewage on the left side of the static separation box enters the water outlet funnel through the through hole on the diaphragm, and finally flows out of the device. Repeat the above steps to realize the oil-water separation operation inside the sewage, which can separate the oil and water inside the sewage, facilitate the recycling of sewage and oil, and reduce resource waste.

2. The impurities filtered out from the sedimentation box are accumulated on the right side of the upper surface of the movable plate. At regular intervals, the electric push rod is controlled by the PLC controller, and the telescopic end pushes the movable plate downward through the mounting frame. The right side of the movable plate is separated from the right inner wall of the sedimentation box, and the impurities fall from the gap. Then the impurities move along the inclined plate to the impurity outlet for accumulation. The telescopic end of the electric push rod contracts to close the right end of the movable plate and the right inner wall of the sedimentation box again. At regular intervals, the plug inside the impurity outlet is pulled out to discharge the impurities under the sedimentation box, thereby realizing the sewage recovery and treatment operation, and can centrally collect and discharge the impurities inside the sewage, thereby improving the quality of sewage recovery.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG. 2 is a schematic structural diagram of the impurity removal mechanism of the utility model.

In the figure: 1 supporting vertical plate, 2 PLC controller, 3 sedimentation box, 4 static separation box, 5 connecting pipe, 6 filter screen, 7 impurity removal mechanism, 71 inclined plate, 72 movable plate, 73 mounting frame, 74 electric push rod, 8 oil-water separation mechanism, 81 baffle, 82 transverse partition, 83 floating plate, 84 liquid density sensor, 85 contact sensor, 86 transfer pump, 87 longitudinal partition, 9 water outlet funnel, 10 oil outlet funnel, 11 water pump, 12 impurity outlet.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-2. This embodiment provides a technical solution: an oilfield wastewater recovery device, including a supporting plate 1, a debris removal mechanism 7 and an oil-water separation mechanism 8;

Support upright plate 1: The support upright plate 1 supports the upper components and provides a suitable installation height for the upper components. There are two of them. The left sides of the upper surfaces of the two support upright plates 1 are fixedly connected to the lower surface of the sedimentation box 3, and the right sides of the upper surfaces of the two support upright plates 1 are fixedly connected to the lower surface of the static separation box 4. The sedimentation box 3 is connected to the static separation box 4 through a connecting pipe 5. A filter screen 6 is provided in the middle of the right inner wall of the sedimentation box 3. The filter screen 6 corresponds to the position of the connecting pipe 5. An outlet 12 is provided at the lower end of the left side of the sedimentation box 3. The PLC controller 2 is also included. The PLC controller 2 is arranged at the right end of the front side of the support upright plate 1 on the front side. The input end of the PLC controller 2 is electrically connected to an external power supply. The water pump 11 is also included. The water pump 11 is arranged on the left side of the upper surface of the sedimentation box 3. The water inlet of the water pump 11 is connected to the upper water inlet of the sedimentation box 3 through a water pipe. The water suction port of the water pump 11 is connected to the external sewage discharge equipment through a water pipe. The input end of the water pump 11 is electrically connected to the output end of the PLC controller 2;

The impurity removal mechanism 7 is convenient for discharging the filtered impurities and is arranged inside the sedimentation box 3. The impurity removal mechanism 7 includes a movable plate 72, a mounting frame 73 and an electric push rod 74. The movable plate 72 is hinged to the middle of the left inner wall of the sedimentation box 3 by a hinge. The mounting frame 73 is arranged on the left side of the upper surface of the movable plate 72. The electric push rod 74 is hinged to the middle of the top wall of the sedimentation box 3 by a hinge. The lower end of the telescopic end of the electric push rod 74 is rotatably connected to the mounting frame 73. The right side surface of the movable plate 72 contacts the right inner wall of the sedimentation box 3. The impurity removal mechanism 7 also includes an inclined plate 71. The inclined plate 71 is tilted at the lower end between the front and rear inner walls of the sedimentation box 3. The left end of the inclined plate 71 is low and the right end is high. The impurity outlet 12 is arranged in coordination with the inclined plate 71. The input end of the push rod 74 is electrically connected to the output end of the PLC controller 2. The impurities filtered out of the sedimentation box 3 are stored on the right side of the upper surface of the movable plate 72. At regular intervals, the electric push rod 74 works through the regulation of the PLC controller 2. The telescopic end pushes the movable plate 72 to rotate downward through the mounting frame 73. The right side of the movable plate 72 is separated from the right inner wall of the sedimentation box 3. The impurities fall from the gap. Then the impurities move along the inclined plate 71 to the impurity outlet 12 for accumulation. The telescopic end of the electric push rod 74 contracts, so that the right end of the movable plate 72 and the right inner wall of the sedimentation box 3 are closed again. At regular intervals, the plug inside the impurity outlet 12 is pulled out to discharge the impurities under the sedimentation box 3, thereby realizing the sewage recovery and treatment operation.

Oil-water separation mechanism 8: The oil-water separation mechanism 8 can separate the oil and water inside the sewage, and is arranged inside the static separation box 4. The oil-water separation mechanism 8 includes a baffle 81, a transverse partition 82, a floating plate 83, a liquid density sensor 84, a contact sensor 85, a transfer pump 86 and a longitudinal partition 87. The baffle 81 is tilted at the upper end of the left inner wall of the static separation box 4, the longitudinal partition 87 is arranged on the right side inside the static separation box 4, the transverse partition 82 is arranged between the left inner wall of the static separation box 4 and the longitudinal partition 87, and a solenoid valve is arranged in the through hole opened on the right side of the upper surface of the transverse partition 82. The floating plate 83 is slidably connected to the slide groove opened in the middle of the left side of the longitudinal partition 87. The contact sensor 85 is arranged in the middle of the top wall of the slide groove. The liquid density sensor 84 It is arranged on the left side of the lower surface of the floating plate 83, and the transfer pump 86 is arranged on the top of the longitudinal partition 87. The extraction port of the transfer pump 86 is connected with the oil hole arranged in the middle of the upper surface of the floating plate 83 through a hose. The pumping port of the transfer pump 86 corresponds to the right side space of the longitudinal partition 87. The output ends of the liquid density sensor 84 and the contact sensor 85 are electrically connected to the input end of the PLC controller 2, and the input ends of the solenoid valve and the transfer pump 86 are electrically connected to the output end of the PLC controller 2. It also includes a water outlet funnel 9 and an oil outlet funnel 10. The water outlet funnel 9 is arranged on the left side of the interior of the static separation box 4, and the water outlet funnel 9 corresponds to the transverse partition 82. The oil outlet funnel 10 is arranged on the right side of the interior of the static separation box 4. The lower end outlets of the water outlet funnel 9 and the oil outlet funnel 10 pass through the static separation box 4 respectively. The circular hole opened on the lower surface of the bottom plate of the static separation box 4 is regulated by the PLC controller 2, and the water pump 11 works to pump the sewage discharged by the external sewage discharge equipment into the interior of the sedimentation box 3. The impurities in the sewage are filtered through the filter screen 6 and then enter the interior of the static separation box 4 through the connecting pipe 5. Under the obstruction of the baffle 81, the sewage flows into the left space of the longitudinal partition 84 through the gap between the baffle 81 and the transverse partition 82, thereby slowing down the impact force of the sewage on the sewage inside the static separation box 4 when the sewage flows into the interior of the static separation box 4. Since the density of oil is less than that of water, the oil floats on the upper surface of the sewage. As the liquid level on the left side of the longitudinal partition 87 rises, the sewage pushes the floating plate 83 and the upper components and slides upward along the chute opened in the middle of the left side of the longitudinal partition 87. The contact sensor 85 transmits the touch signal to the PLC controller 2, and the PLC controller 2 controls the water pump 11 to stop working. The PLC controller 2 starts to control the transfer pump 86 to work. The transfer pump 86 pumps the oil floating on the sewage upwind to the right side of the static separation box 4 through the oil hole on the floating plate 83, and finally flows out of the device through the oil outlet funnel 10 until the liquid density detected by the liquid density sensor 84 increases, indicating that the oil has been discharged from the device. At this time, the PLC controller 2 controls the solenoid valve to open, so that the sewage on the left side of the static separation box 4 enters the water outlet funnel 9 through the through hole on the diaphragm 82, and finally flows out of the device, and the above steps are repeated to realize the oil-water separation operation inside the sewage.

The working principle of an oilfield wastewater recovery device provided by the utility model is as follows: through the regulation of the PLC controller 2, the water pump 11 works to pump the wastewater discharged by the external wastewater discharge equipment into the interior of the sedimentation tank 3, and the impurities in the wastewater are filtered through the filter screen 6 and then enter the interior of the static separation tank 4 through the connecting pipe 5. Under the obstruction of the baffle 81, the wastewater flows into the left space of the longitudinal partition 84 through the gap between the baffle 81 and the transverse partition 82, thereby slowing down the impact of the wastewater on the wastewater inside the static separation tank 4 when it flows into the interior of the static separation tank 4 The density of oil is less than that of water, so that the oil floats on the upper surface of the sewage. As the liquid level on the left side of the longitudinal partition 87 rises, the sewage pushes the floating plate 83 and the upper components and slides upward along the slide groove opened in the middle of the left side of the longitudinal partition 87 until the upper surface of the floating plate 83 contacts the contact sensor 85. The contact sensor 85 transmits a touch signal to the PLC controller 2, and the PLC controller 2 controls the water pump 11 to stop working. The PLC controller 2 starts to control the transfer pump 86 to work. The transfer pump 86 pumps the sewage up through the oil hole on the floating plate 83. The oil pump floated by the wind goes to the right side of the static separation box 4, and finally flows out of the device through the oil outlet funnel 10. When the liquid density detected by the liquid density sensor 84 increases, it means that the oil has been discharged from the device. At this time, the PLC controller 2 regulates the solenoid valve to open, so that the sewage on the left side of the static separation box 4 enters the water outlet funnel 9 through the through hole on the diaphragm 82, and finally flows out of the device. The above steps are repeated to realize the oil-water separation operation inside the sewage. The impurities filtered out from the sedimentation box 3 are stored on the right side of the upper surface of the movable plate 72. At regular intervals, the filter is turned on and the filter is turned off. Through the regulation of the PLC controller 2, the electric push rod 74 works, and the telescopic end pushes the movable plate 72 to rotate downward through the mounting frame 73. The right side of the movable plate 72 is separated from the right inner wall of the sedimentation box 3, and the impurities fall from the gap. Then the impurities move along the inclined plate 71 to the outlet 12 for accumulation. The telescopic end of the electric push rod 74 contracts to make the right end of the movable plate 72 and the right inner wall of the sedimentation box 3 close again. At regular intervals, the plug inside the outlet 12 is pulled out to discharge the impurities under the sedimentation box 3, thereby realizing the sewage recovery and treatment operation.

It is worth noting that the specific model of the PLC controller 2 disclosed in the above embodiment is S7-200, the water pump 11 can choose a water pump of model QZYHCB, the electric push rod 74 can choose an electric push rod of model JN185T, the liquid density sensor 84 can choose a liquid density sensor of model LDS-2100, the contact sensor 85 can choose a contact sensor of model XKC-Y23-V, the transfer pump 86 can choose a high-viscosity material conveying pump of model NYP220-RU-T2-W11, and the PLC controller 2 controls the water pump 11, the electric push rod 74, the liquid density sensor 84, the contact sensor 85, the transfer pump 86 and the solenoid valve using methods commonly used in the prior art.

The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (7)

1. An oilfield sewage recovery device, which is characterized in that: comprises a supporting vertical plate (1), a impurity removing mechanism (7) and an oil-water separating mechanism (8);

Support riser (1): the number of the sedimentation tank is two, the left sides of the upper surfaces of the two support vertical plates (1) are fixedly connected with the lower surface of the sedimentation tank (3), the right sides of the upper surfaces of the two support vertical plates (1) are fixedly connected with the lower surface of the static separation tank (4), the sedimentation tank (3) is communicated with the static separation tank (4) through a communicating pipe (5), a filter screen (6) is arranged in the middle of the right inner wall of the sedimentation tank (3), the filter screen (6) corresponds to the communicating pipe (5), and a impurity outlet (12) is formed in the lower end of the left side surface of the sedimentation tank (3);

impurity removing mechanism (7): is arranged in the sedimentation tank (3);

Oil-water separation mechanism (8): is arranged in the static separation box (4).

2. An oilfield sewage recovery device according to claim 1, wherein: the device further comprises a PLC (programmable logic controller) 2, wherein the PLC 2 is arranged at the right end of the front side surface of the front supporting vertical plate 1, and the input end of the PLC 2 is electrically connected with an external power supply.

3. An oilfield sewage recovery device according to claim 1, wherein: still include water pump (11), water pump (11) set up in the upper surface left side of sedimentation tank (3), and the water inlet intercommunication of the upper end water inlet of water pump (11) and sedimentation tank (3) is passed through to the pump mouth of a river, and the water sucking mouth of water pump (11) is passed through the water pipe and is communicated with outside sewage discharge equipment, and the output of PLC controller (2) is connected to the input electricity of water pump (11).

4. An oilfield sewage recovery device according to claim 1, wherein: the utility model provides an edulcoration mechanism (7) includes fly leaf (72), mounting bracket (73) and electric putter (74), fly leaf (72) are articulated in the left side inner wall middle part of deposit box (3) through the hinge, and mounting bracket (73) set up in the upper surface left side of fly leaf (72), and electric putter (74) are articulated in the top wall middle part of deposit box (3) through the hinge, and the flexible end lower extreme and the mounting bracket (73) of electric putter (74) rotate to be connected, the right side of fly leaf (72) and the right side inner wall contact of deposit box (3), the output of PLC controller (2) is connected to the input electricity of electric putter (74).

5. An oilfield sewage recovery device according to claim 1, wherein: the impurity removing mechanism (7) further comprises an inclined plate (71), the inclined plate (71) is obliquely arranged at the lower end between the front inner wall and the rear inner wall of the sedimentation tank (3), the left end of the inclined plate (71) is low, the right end of the inclined plate is high, and the impurity outlet (12) is matched with the inclined plate (71).

6. An oilfield sewage recovery device according to claim 2, wherein: the oil-water separator (8) comprises a baffle (81), a diaphragm plate (82), a floating plate (83), a liquid density sensor (84), a contact sensor (85), a transfer pump (86) and a longitudinal baffle (87), wherein the baffle (81) is obliquely arranged at the upper end of the left inner wall of the static separation tank (4), the longitudinal baffle (87) is arranged on the right side of the inside of the static separation tank (4), the diaphragm plate (82) is arranged between the left inner wall of the static separation tank (4) and the longitudinal baffle (87), an electromagnetic valve is arranged in a through hole formed in the right side of the upper surface of the diaphragm plate (82), the floating plate (83) is slidably connected in a chute formed in the middle of the left side surface of the vertical partition plate (87), the contact sensor (85) is arranged in the middle of the top wall body of the chute, the liquid density sensor (84) is arranged on the left side of the lower surface of the floating plate (83), the transfer pump (86) is arranged on the top of the vertical partition plate (87), a material suction port of the transfer pump (86) is communicated with an oil passing hole formed in the middle of the upper surface of the floating plate (83) through a hose, a material suction port of the transfer pump (86) corresponds to the right side space of the vertical partition plate (87), the output ends of the liquid density sensor (84) and the contact sensor (85) are electrically connected with the input end of the PLC (2), the input ends of the electromagnetic valve and the transfer pump (86) are electrically connected with the output end of the PLC (2).

7. An oilfield sewage recovery device according to claim 6, wherein: still include play water funnel (9) and play oil funnel (10), play water funnel (9) set up in the inside left side of standing still separation case (4), go out water funnel (9) and diaphragm (82) coincide and correspond, play oil funnel (10) set up in the inside right side of standing still separation case (4), go out the round hole that the lower extreme export of water funnel (9) and play oil funnel (10) was passed respectively and is stood separation case (4) bottom plate body lower surface and is seted up.