Drum-type cleaning device for cleaning filter material in oil field

Abstract

The utility model relates to the technical field of oil field water treatment, in particular to a drum-type cleaning device for cleaning filter materials in an oil field, which comprises a frame, a screen drum, a detergent delivery pipe, an oil collecting water tank, a discharge pipe, a transmission mechanism and a driving motor. A washing agent conveying pipe with the outlet end located in the screen barrel is arranged on the machine frame, an oil collecting water tank is arranged on the machine frame corresponding to the position below the screen barrel, a discharging pipe is arranged on the oil collecting water tank, a driving motor is arranged on the machine frame, and the driving motor is connected with the screen barrel through a transmission mechanism so as to drive the screen barrel to rotate. The oil field sewage filter material cleaning device is reasonable in structure, good in oil field sewage filter material cleaning effect, safe and convenient to use, capable of saving time and labor, high in automation degree and capable of meeting the filter material cleaning working condition requirements of different oil field production bases.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field water treatment, and is a drum type cleaning device used for cleaning filter materials in oil fields. Background Art

[0002] The development and construction of oilfield surface projects pay more and more attention to economic and environmental benefits. In recent years, the crude oil extracted from domestic oilfields has complex components, resulting in high costs for oilfield water treatment and purification projects. Even the filter media of oilfield sewage filters are difficult to clean due to impurities such as sludge and dirty oil, resulting in the loss of filtering performance. If the filter media in the filter is directly discarded, it will violate relevant environmental regulations; if the relevant solid waste treatment agencies handle the waste filter media, it will be difficult and costly; and the cost of replacing new filter media is high. Therefore, it is urgent to solve the problem of cleaning the filter media of the filter device at the oilfield ground station.

[0003] At present, the filter media of domestic oilfield filters is mainly cleaned by backwashing process. The backwashing process is to make water flow through the filter media layer in reverse, so that the filter layer expands and suspends, and the filter media layer is cleaned by the shear force of the water flow and the collision friction of the particles, so that the dirt in the filter layer is separated and discharged with the backwash water. In Xinjiang Oilfield, especially Fengcheng Oilfield, the viscosity of the produced crude oil can reach one million centipoise. The filter backwashing cannot completely clean the filter media. After the filter is backwashed, the filter media layer still retains and adsorbs the difficult-to-remove sludge and high-viscosity heavy oil. After more than a dozen backwashings, the heavy oil and mud trapped in the filter have formed small mud balls, and at the same time extend to the bottom of the filter media layer, resulting in the filter effluent water quality not meeting the oilfield produced water reinjection water quality standards. Under the requirements of low-carbon emission reduction, the cost reduction and efficiency improvement and environmental protection forms of oil and gas field development are becoming increasingly stringent, so it is urgent to design a cleaning device specifically for cleaning the filter media of oilfield sewage filters. Summary of the invention

[0004] The utility model provides a drum type cleaning device for cleaning filter material in oil fields, which overcomes the deficiencies of the prior art and can effectively solve the problem of lack of a cleaning device dedicated to cleaning filter material in oil field sewage filters.

[0005] The technical solution of the utility model is achieved through the following measures: a drum-type cleaning device for cleaning filter materials in oil fields, comprising a frame, a screen cylinder, a detergent delivery pipe, an oil collecting water tank, a discharge pipe, a transmission mechanism and a drive motor, a screen cylinder arranged horizontally and rotatably mounted on the frame, screen holes are distributed on the screen cylinder, a detergent delivery pipe with an outlet end located in the screen cylinder is arranged on the frame, an oil collecting water tank is arranged on the frame at a position corresponding to the lower part of the screen cylinder, a discharge pipe is arranged on the oil collecting water tank, a drive motor is arranged on the frame, and the drive motor is connected to the screen cylinder through the transmission mechanism to drive the screen cylinder to rotate.

[0006] The following are further optimizations and / or improvements to the above utility model solution:

[0007] The above-mentioned drum cleaning device for cleaning filter materials in oil fields may also include a controller, a control panel, a frequency converter and an alarm. The control panel is provided with a touch screen and control buttons. The drive motor is connected to the controller through the frequency converter. The touch screen, control buttons and alarm are all connected to the controller. The drum is rotatably mounted on the frame through three groups of weighing modules. The weighing modules include a weighing sensor, a support roller shaft and a support roller. The weighing sensor is fixedly mounted on the frame. The support roller shaft is fixedly mounted on the weighing sensor and is horizontally arranged. The support roller is rotatably mounted on the support roller shaft. The weighing sensor is connected to the controller. The three support rollers of the three groups of weighing modules are distributed in a triangle, and the drum is supported on the three support rollers.

[0008] The above-mentioned screen drum may include a drum, a screen and a spiral guide plate. The drum is a hollow cylinder that passes through the left and right sides. Through holes are distributed on the drum wall. A cylindrical screen is installed on the inner side of the drum. Screen holes are distributed on the screen. A spiral guide plate is installed on the inner side of the screen. Side doors are respectively installed on the frame corresponding to the opening positions on the left and right ends of the drum; the transmission mechanism includes an annular gear ring, a sprocket and a chain. The annular gear ring is fixedly installed on the outside of the drum, the sprocket is fixedly installed on the output shaft of the driving motor, and a chain is installed between the sprocket and the annular gear ring.

[0009] An oil-water tank may be installed on the frame below the outlet end of the above-mentioned corresponding discharge pipe, a filter screen may be detachably installed at the inlet of the oil-water tank, and a delivery pump may be installed at the outlet of the oil-water tank.

[0010] A clean water tank may be provided on the frame at a position corresponding to the lower portion of the screen cylinder, and an electric heating pipe may be provided in the clean water tank.

[0011] The detergent delivery pipe can be detachably mounted on the frame through a mounting bracket; an annular sliding frame for axially limiting the drum is provided on the frame corresponding to the left and right sides of the drum; a universal wheel with a brake is provided at the bottom of the frame; a drum sleeve is provided on the frame corresponding to the outer side of the screen drum.

[0012] The utility model discloses the cleaning device of the filter material of the oilfield wastewater filter is simple and convenient to operate, and the cleaning effect is good. It is safe and convenient to use, saves time and effort, and has a high degree of automation. It can meet the requirements of filter material cleaning working conditions of different oilfield production bases, and fills the technical gap of mobile cleaning devices for cleaning filter material in oilfields. It improves the regeneration efficiency of filter material used for oilfield wastewater treatment and meets the qualified standards for oilfield wastewater treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a schematic diagram of the main structure of the best embodiment of the utility model.

[0014] Attached Figure 2 It is a stereogram of the best embodiment of the utility model.

[0015] Attached Figure 3 It is a schematic diagram of the structure of the screen and the spiral guide plate in the best embodiment of the utility model.

[0016] Attached Figure 4 This is a circuit diagram of the best embodiment of the utility model.

[0017] The codes in the accompanying drawings are: 1 for the frame, 2 for the detergent delivery pipe, 3 for the oil collecting tank, 4 for the discharge pipe, 5 for the drive motor, 6 for the controller, 7 for the control panel, 8 for the frequency converter, 9 for the alarm, 10 for the touch screen, 11 for the control button, 12 for the weighing sensor, 13 for the support roller, 14 for the support roller, 15 for the drum, 16 for the screen, 17 for the spiral guide plate, 18 for the side door, 19 for the oil tank, 20 for the filter, 21 for the delivery pump, 22 for the electric heating pipe, 23 for the mounting bracket, 24 for the universal wheel, 25 for the drum sleeve, and 26 for the screen bracket. DETAILED DESCRIPTION

[0018] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0019] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0020] The present invention is further described below in conjunction with the embodiments and drawings:

[0021] As attached Figure 1-4 As shown, the drum 15 type cleaning device for cleaning filter materials in oil fields includes a frame 1, a screen 16 cylinder, a detergent delivery pipe 2, an oil collecting water tank 3, a discharge pipe 4, a transmission mechanism and a drive motor 5. The frame 1 is rotatably mounted with a screen 16 cylinder arranged horizontally, and the screen 16 cylinder is provided with sieve holes. The frame 1 is provided with a detergent delivery pipe 2 with an outlet end located in the screen 16 cylinder, and the frame 1 is provided with an oil collecting water tank 3 corresponding to the position below the screen 16 cylinder. The oil collecting water tank 3 is provided with a discharge pipe 4, and the frame 1 is provided with a drive motor 5, which is connected to the screen 16 cylinder through a transmission mechanism to drive the screen 16 cylinder to rotate.

[0022] When in use, the filter material of the oilfield sewage filter is placed in the screen 16 cylinder, the degreasing agent or clean water is delivered to the screen 16 cylinder through the detergent delivery pipe 2, the drive motor 5 is started to drive the screen 16 cylinder to rotate to clean the filter material, and the cleaning waste liquid flows out from the screen hole into the oil collecting tank 3 and is discharged from the discharge pipe 4.

[0023] The above embodiments may be further optimized and / or improved according to actual needs:

[0024] As attached Figure 1-4 As shown, the drum 15 type cleaning device for cleaning filter materials in oil fields also includes a controller 6, a control panel 7, a frequency converter 8 and an alarm 9. The control panel 7 is provided with a touch screen 10 and a control button 11. The drive motor 5 is connected to the controller 6 through the frequency converter 8. The touch screen 10, the control button 11 and the alarm 9 are all connected to the controller 6; the drum 15 is rotatably mounted on the frame 1 through three groups of weighing modules. The weighing modules include a weighing sensor 12, a support roller 14 shaft 13 and a support roller 14. The weighing sensor 12 is fixedly mounted on the frame 1, the support roller 14 shaft 13 is fixedly mounted on the weighing sensor 12 and is horizontally arranged. The support roller 14 is rotatably mounted on the support roller 14 shaft 13. The weighing sensor 12 is connected to the controller 6. The three support rollers 14 of the three groups of weighing modules are triangularly distributed, and the drum 15 is supported on the three support rollers 14.

[0025] According to the requirements, the controller 6, the frequency converter 8, the touch screen 10 and the alarm 9 can all adopt the existing known technologies. Specifically, in this embodiment, the controller 6 is a PLC controller 6, the drive motor 5 is a variable frequency motor, the controller 6 controls the drive motor 5 to periodically run in forward and reverse directions, the touch screen 10 is used to display the weight value of the added filter material, to input the speed value of the drive motor 5, and to input the running time of the drive motor 5. The control button 11 includes a start button and a stop button. The start button is used to control the start of the drive motor 5, and the stop button is used to control the stop of the drive motor 5. The controller 6 presets the upper limit value of the filter material weight, and the filter material added to the screen 16 cylinder is weighed by the weighing sensor 12. When the weight of the added filter material exceeds the preset upper limit value of the filter material weight, the alarm 9 sounds. An alarm is sounded to prevent excessive addition of filter material. After the filter material is added, the operator enters the appropriate speed value of the drive motor 5 and the running time value of the drive motor 5 on the touch screen 10 according to the weight of the filter material, the specifications of the filter material, and the type of detergent, and presses the start button. The drive motor 5 drives the screen 16 to rotate to clean the filter material. After the time is up, the drive motor 5 automatically stops rotating; further, a calculation formula can be built into the controller 6, and the touch screen 10 can also be used to input the amount of detergent and the weight of the filter material. The controller 6 directly calculates the speed value and the running time value of the drive motor 5 according to the input detergent amount and the weight of the filter material through the calculation formula; further, the controller 6 is also connected to a motor overheating protection module. When the motor is overheated, the controller 6 can control the drive motor 5 to stop urgently.

[0026] As attached Figure 1-3As shown, the screen 16 cylinder includes a drum 15, a screen 16 and a spiral guide plate 17. The drum 15 is a hollow cylinder that passes through the left and right sides. The drum 15 has through holes distributed on its wall. A cylindrical screen 16 is installed on the inner side of the drum 15. The screen 16 has sieve holes distributed on it. A spiral guide plate 17 is installed on the inner side of the screen 16. Side doors 18 are respectively installed on the frame 1 at the opening positions at the left and right ends of the drum 15; the transmission mechanism includes an annular gear ring, a sprocket and a chain. The annular gear ring is fixedly installed on the outer side of the drum 15, the sprocket is fixedly installed on the output shaft of the driving motor 5, and a chain is installed between the sprocket and the annular gear ring. According to needs, the screen 16 is detachably installed in the drum 15 through the screen bracket 26, which makes it easy to remove the screen 16 from the drum 15 for cleaning. The spiral guide plate 17 is provided to facilitate stirring the filter material so that the filter material and the detergent are fully mixed. After the filter material is added, the side door 18 is installed and the side door 18 is closed, thereby preventing the filter material from falling out of the filter screen 20 cylinder. Specifically, the aperture of the through hole on the drum 15 is 4 cm, and the mesh number of the screen 16 is 20 meshes.

[0027] As attached Figure 1-2 As shown, an oil-water tank 19 is installed on the frame 1 at a position below the outlet end of the corresponding discharge pipe 4, and a filter screen 20 is detachably installed at the inlet of the oil-water tank 19, and a delivery pump 21 is installed at the outlet of the oil-water tank 19. The filter screen 20 can prevent fragile filter materials and oilfield sludge from being drawn into the delivery pump 21, causing damage to the delivery pump 21. The filter screen 20 is detachable, which is convenient for cleaning. When in use, the outlet end of the delivery pump 21 is connected to the inlet end of the oilfield sewage treatment device, and the cleaning waste liquid discharged from the discharge pipe 4 flows into the oil-water tank 19, and then the cleaning waste liquid is transported to the oilfield sewage treatment device for treatment through the delivery pump 21, which effectively solves the problem of waste liquid discharge generated by cleaning the filter material; specifically, in this embodiment, the delivery pump 21 is connected to the controller 6.

[0028] As attached Figure 1-2 As shown, a clean water tank is provided on the frame 1 corresponding to the position below the screen 16 cylinder, and an electric heating pipe 22 is provided in the clean water tank. When in use, clean water is poured into the clean water tank, and the clean water is heated by the electric heating pipe 22 to generate high-temperature steam. The high-temperature steam rises and exchanges heat with the filter material and the detergent to prevent them from freezing, thereby ensuring that the filter material cleaning operation is effectively carried out on site in winter; specifically, in this embodiment, the electric heating pipe 22 is connected to the controller 6.

[0029] As attached Figure 1-2 As shown, the detergent delivery pipe 2 is detachably mounted on the frame 1 through a mounting bracket 23. The detergent delivery pipe 2 can be removed from the frame 1, thereby not hindering the screen 16 from being drawn out of the drum 15 for cleaning.

[0030] Specifically, an annular sliding frame for axially limiting the roller 15 is provided on the frame 1 at the left and right sides of the roller 15, thereby preventing the screen 16 from axially displacing during the rotation process.

[0031] As attached Figure 1-2 As shown, a universal wheel 24 with a brake is provided at the bottom of the frame 1; the universal wheel 24 is provided to facilitate the movement of the frame 1, and the brake is provided to ensure the stability of the frame 1 when it is placed.

[0032] As attached Figure 1-2 As shown, a roller sleeve 25 is provided on the frame 1 corresponding to the outer side of the screen 16; thereby, oil, water and sludge can be prevented from splashing out and the operator can be prevented from suffering mechanical damage.

[0033] The use process is as follows: move the device to the vicinity of the filter material pile at the oil field surface production station, fix the universal wheels 24 with brakes, install the power supply and temporary grounding device of the device, confirm that the power supply is normal, confirm whether the control system is in normal working condition, check whether the weighing module is working normally through the control system and visually, and perform the weight zeroing calibration of the weighing module. When working in winter, check whether the clean water tank is filled with water, perform a trial run, confirm that the device is operating normally, then temporarily cut off the power supply, and then install the bracket 23 and the detergent delivery pipe 2, connect the detergent delivery pipe 2 to the diaphragm pump to deliver detergent; open the left and right side doors 18, and load the filter material into the screen 16 cylinder. After loading is completed, close the left and right side doors 18. According to the degree of dirtiness of the filter material on site and the amount of detergent used, enter the motor speed value and the motor running time in the touch screen 10, and then press the start button. In addition, the electric heating tube can be turned on according to the winter working environment. When the motor running time is up, the screen 16 cylinder stops rotating, and the left door 18 is opened to observe whether the filter material is clean. After washing, open the left door 18, pull the trailer under the left door 18, press the start button, the screen 16 cylinder starts to rotate, and the cleaned material is pushed out with the help of the spiral guide plate 17. The filter material cleaning work is completed, and the delivery pump 21 is started to transport the cleaning waste liquid in the oil tank 19 to the designated sewage discharge area.

[0034] The above technical features constitute the best implementation example of the present utility model, which has strong adaptability and best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. A drum type cleaning device for cleaning filter media in oil fields, characterized in that It includes a frame, a screen cylinder, a detergent delivery pipe, an oil collecting trough, a discharge pipe, a transmission mechanism and a driving motor. A screen cylinder arranged horizontally is rotatably mounted on the frame, screen holes are distributed on the screen cylinder, a detergent delivery pipe with an outlet end located in the screen cylinder is arranged on the frame, an oil collecting trough is arranged on the frame at a position corresponding to the lower part of the screen cylinder, a discharge pipe is arranged on the oil collecting trough, and a driving motor is arranged on the frame, which is connected to the screen cylinder through the transmission mechanism to drive the screen cylinder to rotate.

2. The drum type cleaning device for cleaning filter media in oil fields according to claim 1 is characterized in that The drum type cleaning device for cleaning filter materials in oil fields also includes a controller, a control panel, a frequency converter and an alarm. The control panel is provided with a touch screen and control buttons. The drive motor is connected to the controller through the frequency converter. The touch screen, the control buttons and the alarm are all connected to the controller. The drum is rotatably mounted on the frame through three groups of weighing modules. The weighing modules include a weighing sensor, a supporting roller shaft and a supporting roller. The weighing sensor is fixedly mounted on the frame. The supporting roller shaft is fixedly mounted on the weighing sensor and is horizontally arranged. The supporting roller is rotatably mounted on the supporting roller shaft. The weighing sensor is connected to the controller. The three supporting rollers of the three groups of weighing modules are distributed in a triangle. The drum is supported on the three supporting rollers.

3. The drum type cleaning device for cleaning filter media in oil fields according to claim 1 or 2, characterized in that The screen drum includes a drum, a screen and a spiral guide plate. The drum is a hollow cylinder that passes through from left to right. Through holes are distributed on the drum wall. A cylindrical screen is installed on the inner side of the drum. Screen holes are distributed on the screen. A spiral guide plate is installed on the inner side of the screen. Side doors are installed on the frames corresponding to the opening positions at the left and right ends of the drum respectively; the transmission mechanism includes an annular gear ring, a sprocket and a chain. The annular gear ring is fixedly installed on the outer side of the drum, the sprocket is fixedly installed on the output shaft of the driving motor, and a chain is installed between the sprocket and the annular gear ring.

4. The drum type cleaning device for cleaning filter media in oil fields according to claim 1 or 2, characterized in that An oil-water tank is installed on the frame at a position below the outlet end of the discharge pipe, a filter screen is detachably installed at the inlet of the oil-water tank, and a delivery pump is installed at the outlet of the oil-water tank.

5. The drum type cleaning device for cleaning filter media in oil fields according to claim 1 or 2, characterized in that A clean water tank is arranged on the frame corresponding to the position below the screen cylinder, and an electric heating pipe is arranged in the clean water tank.

6. The drum type cleaning device for cleaning filter media in oil fields according to claim 3, characterized in that A clean water tank is arranged on the frame corresponding to the position below the screen cylinder, and an electric heating pipe is arranged in the clean water tank.

7. The drum type cleaning device for cleaning filter media in oil fields according to claim 4, characterized in that A clean water tank is arranged on the frame corresponding to the position below the screen cylinder, and an electric heating pipe is arranged in the clean water tank.

8. The drum type cleaning device for cleaning filter material in oil fields according to claim 1, 2, 6 or 7, characterized in that The detergent delivery pipe is detachably mounted on the frame through a mounting bracket; an annular sliding frame for axially limiting the drum is provided on the frame corresponding to the left and right sides of the drum; a universal wheel with a brake is provided at the bottom of the frame; a drum sleeve is provided on the frame corresponding to the outer side of the screen drum.

9. The drum type cleaning device for cleaning filter media in oil fields according to claim 3, characterized in that The detergent delivery pipe is detachably mounted on the frame through a mounting bracket; an annular sliding frame for axially limiting the drum is provided on the frame corresponding to the left and right sides of the drum; a universal wheel with a brake is provided at the bottom of the frame; a drum sleeve is provided on the frame corresponding to the outer side of the screen drum.

10. The drum type cleaning device for cleaning filter media in oil fields according to claim 4, characterized in that The detergent delivery pipe is detachably mounted on the frame through a mounting bracket; an annular sliding frame for axially limiting the drum is provided on the frame corresponding to the left and right sides of the drum; a universal wheel with a brake is provided at the bottom of the frame; a drum sleeve is provided on the frame corresponding to the outer side of the screen drum.

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