CN115872494A - Settling tank with pressurization and pollution discharge functions for oilfield sewage treatment - Google Patents
Settling tank with pressurization and pollution discharge functions for oilfield sewage treatment Download PDFInfo
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- CN115872494A CN115872494A CN202310152811.2A CN202310152811A CN115872494A CN 115872494 A CN115872494 A CN 115872494A CN 202310152811 A CN202310152811 A CN 202310152811A CN 115872494 A CN115872494 A CN 115872494A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a settling tank with a pressurization and pollution discharge function for oilfield sewage treatment. The utility model provides an oilfield sewage treatment subsides jar with pressurization blowdown function, including subsiding the casing, it is provided with the mud discharging port to subside the casing, it has the drain pipe to subside the casing intercommunication, the drain pipe is provided with the solenoid valve, it has the oil-well pump to subside the casing rigid coupling, it has the flexible pipe with the oil-well pump intercommunication to subside casing run-through rigid coupling, sliding connection has the floating plate with flexible pipe intercommunication in the subside casing, it has the mud pipe with mud discharging port intercommunication to subside the casing rigid coupling, it has the inlet tube to subside the casing and inlayed, the inlet tube is provided with the equidistant distribution's of circumference feed liquor hole. According to the invention, by uniformly and slowly adding the oilfield sewage into the settling shell from the lower part of the settling shell, the added oilfield sewage cannot directly impact an oil-water mixture above the settling shell, and the added oilfield sewage is uniformly dispersed into the settling shell from the liquid inlet hole of the water inlet pipe, so that the impact on the oilfield sewage in the settling shell is reduced.
Description
Technical Field
The invention relates to the technical field of oilfield sewage treatment, in particular to a settling tank with a pressurization and pollution discharge function for oilfield sewage treatment.
Background
The oil field sewage treatment comprises the steps of natural sedimentation, flocculation, air flotation, filtration and the like, when the oil field sewage is treated, natural sedimentation is firstly needed, impurities in the oil field sewage are filtered, crude oil and water in the filtered oil-water mixture are separated, and the natural sedimentation is generally carried out in a sedimentation tank at present.
At present the in-process that the settling cask was using, directly fill oil field sewage in the settling cask through the pipeline, at the in-process that oil field sewage was filled, the oil field sewage of adding in the lateral settling cask from the upside, oil field sewage can strike original oil field sewage in the settling cask, cause the oil field sewage in the settling cask to appear undulantly, undulantly oil field sewage has increased the time of follow-up settlement process, and oil field sewage carries out the in-process of impurity filtration processing in the settling cask, impurity after the filtration is piling up when a certain amount, need clear up the accumulational impurity in the settling cask, need operating personnel to stop to pack oil field sewage in the settling cask this moment, after discharging the water in the settling cask, clear up the accumulational impurity in the settling cask, if do not stop to pack oil field sewage in the settling cask can lead to newly filled oil field sewage along with impurity discharges, cause the waste of oil field sewage, if stop to pack oil field sewage can lead to the settling cask work not, the treatment effeciency of oil field sewage has been reduced.
Disclosure of Invention
In order to solve the problems mentioned in the technical background, the invention provides a settling tank for oilfield sewage treatment, which has stable settling and a pressurization and pollution discharge function.
The technical scheme of the invention is as follows: the utility model provides an oil field sewage treatment uses settling cask with pressurization blowdown function, including subsiding the casing, it is provided with the mud discharge port to subside the casing, it has the drain pipe to subside the casing intercommunication, the drain pipe is provided with the solenoid valve, it has the oil-well pump to subside the casing rigid coupling, it has the flexible pipe with the oil-well pump intercommunication to subside the casing run-through rigid coupling, sliding connection has the floating plate with flexible pipe intercommunication in the casing to subside, it has control terminal to subside the casing rigid coupling, the solenoid valve and the oil-well pump of drain pipe are connected with control terminal electricity respectively, it has the mud pipe with mud discharge port intercommunication to subside the casing rigid coupling, the diameter of mud pipe is greater than the diameter of mud discharge port, it has inlayed the inlet tube to subside the casing, the inlet tube is provided with the feed liquor hole that the circumference is equidistant to distribute, the inlet tube is provided with the loading mechanism who is used for getting rid of the interior impurity of subsidence casing, be provided with the shutoff part that is used for plugging its feed liquor hole in the inlet tube, oil field sewage slowly even gets into the lower part of casing from the feed liquor hole of inlet tube.
Preferably, the lower surface of the floating disc is provided with a frustum-shaped groove, and the telescopic pipe is communicated with one side of the floating disc with a small diameter in the frustum-shaped groove and used for collecting crude oil.
Preferably, the lower surface of the floating plate is sprayed with an oil-insulating coating to reduce the adhesion of crude oil.
Preferably, the pressurizing mechanism comprises a first L-shaped pipe, the lower portion of the first L-shaped pipe is provided with an air vent for balancing air pressure, a filter screen is fixedly connected in the air vent of the first L-shaped pipe, the first L-shaped pipe is communicated with the water inlet pipe, the first L-shaped pipe is slidably connected with a first slide bar, one end of the first slide bar is fixedly connected with a first pushing disc slidably connected with the first L-shaped pipe, the other end of the first slide bar is fixedly connected with a blocking disc slidably connected with the sedimentation shell, the blocking disc is provided with through holes distributed in the circumferential direction, and the through holes of the blocking disc are fixedly connected with the first filter screen.
Preferably, the density of the baffle disc is higher than that of water and lower than that of sludge impurities, so that separation of oil-water mixture and impurities is facilitated.
Preferably, the blocking part comprises a blocking block, the blocking block is connected in the water inlet pipe in a sliding mode, the water inlet pipe is provided with a rectangular limiting groove, the blocking block is fixedly connected with a sliding block in sliding connection with the rectangular limiting groove, the water inlet pipe is fixedly connected with a fixing ring, the water inlet pipe is connected with a blocking sleeve in a sliding mode, a first spring is fixedly connected between the blocking sleeve and the fixing ring, a second filter screen is fixedly connected in the blocking sleeve, the water inlet pipe is provided with a limiting part used for limiting the blocking sleeve and the blocking block, and the blocking sleeve is provided with a sealing assembly used for blocking a sludge discharge port.
Preferably, the water inlet pipe is provided with a U-shaped chute, a U-shaped rod is slidably connected in the U-shaped chute, the U-shaped rod is matched with the intercepting block, and the intercepting sleeve is provided with a rectangular groove matched with the U-shaped rod.
Preferably, spacing part is including L shape pole, L shape pole sliding connection in inlet tube, and the interception sleeve is provided with the chucking groove, L shape pole and the spacing cooperation in the chucking groove of interception sleeve, and the rigid coupling has the second spring between L shape pole and the inlet tube, and L shape pole rigid coupling has spacing frame, and the fender dish rigid coupling has the connecting rod, and the connecting rod rigid coupling has the wedge, spacing frame be provided with wedge complex inclined plane.
Preferably, the sealing assembly comprises a second sliding rod, the second sliding rod is fixedly connected to the intercepting sleeve, a second L-shaped pipe is fixedly connected to the water inlet pipe, an air vent used for balancing air pressure is formed in the upper portion of the second L-shaped pipe, a filter screen is fixedly connected into the air vent of the second L-shaped pipe, the second L-shaped pipe is slidably connected with a second push disc fixedly connected with the second sliding rod, the second L-shaped pipe is communicated with an air storage shell, an air vent used for balancing air pressure is formed in the lower portion of the air storage shell, the filter screen is fixedly connected into the air vent of the air storage shell, the air storage shell is slidably connected with a third sliding rod, one end of the third sliding rod is fixedly connected with a third push disc slidably connected with the air storage shell, and the other end of the third sliding rod is fixedly connected with a plug block in sealing fit with the mud discharge port.
Preferably, the lower part of the plugging block is arranged to be in a truncated cone shape for increasing the contact area between the plugging block and the sludge discharge port.
The invention has the beneficial effects that: according to the invention, by uniformly and slowly adding the oilfield sewage into the settling shell from the lower part of the settling shell, the added oilfield sewage cannot directly impact an oil-water mixture above the settling shell, and the added oilfield sewage is uniformly dispersed into the settling shell from the liquid inlet hole of the water inlet pipe, so that the impact on the oilfield sewage in the settling shell is reduced, the stability of the oilfield sewage in the settling shell is improved, the natural settling of crude oil and water is facilitated, the lower surface of the floating disc is provided with the frustum-shaped groove, after the crude oil moves upwards and contacts with the lower surface of the floating disc, the crude oil starts to gather towards the middle part under the extrusion of the inclined surface of the lower surface of the floating disc, the baffle disc moves downwards by pressurizing the air pressure, impurities in the settling shell are periodically cleaned, the phenomenon that the accumulation of the impurities in the settling shell affects the upward conveying of the oil-water mixture in the oilfield sewage is avoided, the filling equipment does not need to be stopped in the process of treating the impurities in the settling shell, and the continuity of treating the oilfield sewage is increased.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a sectional view showing a three-dimensional structure of the floating plate according to the present invention.
Fig. 3 is a partial sectional view showing a three-dimensional structure of the pressing mechanism of the present invention.
Fig. 4 is an enlarged perspective view of the invention at a in fig. 3.
Fig. 5 is an enlarged perspective view of the invention at B in fig. 3.
Fig. 6 is a partial cross-sectional view of a three-dimensional structure of a plugging member of the present invention.
Fig. 7 is a partial sectional view of a three-dimensional structure of a spacing member of the present invention.
FIG. 8 is a perspective view of the U-shaped bar of the present invention.
Fig. 9 is a perspective partial sectional view of a seal assembly of the present invention.
Fig. 10 is an enlarged perspective view of the invention at C of fig. 9.
Number designation in the figures: 1-a settling shell, 101-a mud discharging port, 2-a water discharging pipe, 3-an oil well pump, 4-a telescopic pipe, 5-a floating disc, 6-a control terminal, 7-a mud discharging pipe, 8-a water inlet pipe, 801-a rectangular limiting groove, 802-a U-shaped sliding groove, 901-a first L-shaped pipe, 902-a first sliding rod, 903-a first pushing disc, 904-a blocking disc, 905-a first filter screen, 1001-a blocking block, 1002-a fixed ring, 1003-a blocking sleeve, 10031-a rectangular groove, 1004-a first spring, 1005-a second filter screen, 1006-a U-shaped rod, 1101-an L-shaped rod, 1102-a second spring, 1103-a limiting frame, 1104-a connecting rod, 1105-a wedge block, 1201-a second sliding rod, 1202-a second L-shaped pipe, 1203-a second pushing disc, 1204-a gas storage shell, 1205-a third sliding rod, 1206-a third pushing disc, 1207-a plugging block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A settling tank with a pressurization and pollution discharge function for oilfield sewage treatment comprises a settling shell 1, wherein a sludge discharge port 101 is formed in the left side of the lower portion of the settling shell 1, a water discharge pipe 2 is communicated with the left side of the middle of the settling shell 1, the water discharge pipe 2 is provided with an electromagnetic valve, an oil well pump 3 is fixedly connected to the upper surface of the settling shell 1, a telescopic pipe 4 communicated with the oil well pump 3 is fixedly connected to the settling shell 1 in a penetrating manner, a floating disc 5 communicated with the telescopic pipe 4 is slidably connected to the settling shell 1, the telescopic pipe 4 ensures that the floating disc 5 floats up and down, a frustum-shaped groove is formed in the lower surface of the floating disc 5, the telescopic pipe 4 is communicated with one side of the floating disc 5 with a small diameter of the frustum-shaped groove, crude oil moves upwards to contact with the lower surface of the floating disc 5, the crude oil starts to gather towards the middle under the extrusion of the lower surface of the floating disc 5, and the gathered crude oil is located at the lower end of the telescopic pipe 4, the oil field sewage sedimentation device is convenient for crude oil concentration, the lower surface of the floating disc 5 is sprayed with an oil insulation coating, the adhesion amount of the crude oil on the lower surface of the floating disc 5 is reduced, subsequent crude oil extraction is convenient, the electromagnetic valve of the drain pipe 2 and the sedimentation shell 1 are respectively and electrically connected with the control terminal 6, the oil well pump 3 is electrically connected with the control terminal 6, the sedimentation shell 1 is fixedly connected with a sludge discharge pipe 7 communicated with the sludge discharge port 101, the diameter of the sludge discharge pipe 7 is larger than that of the sludge discharge port 101, the sedimentation shell 1 is embedded with a water inlet pipe 8, the water inlet pipe 8 is provided with liquid inlet holes which are circumferentially distributed at equal intervals, the added oil field sewage cannot directly impact an oil-water mixture above the sedimentation shell 1 by uniformly and slowly adding the oil field sewage into the sedimentation shell from the lower part of the sedimentation shell 1, the added oil field sewage is uniformly dispersed to the sedimentation shell 1 from the liquid inlet holes of the water inlet pipe 8, and the impact on the oil field sewage in the sedimentation shell 1 is reduced, the stability of the oil field sewage in the sedimentation shell 1 is improved, the natural sedimentation of crude oil and water is facilitated, the water inlet pipe 8 is provided with a pressurizing mechanism for discharging impurities in the sedimentation shell 1, and the water inlet pipe 8 is internally provided with a plugging component for plugging a liquid inlet hole of the water inlet pipe.
As shown in fig. 3 and 4, the pressurizing mechanism includes a first L-shaped pipe 901, a vent hole for balancing air pressure is formed in a lower portion of the first L-shaped pipe 901, a filter screen is welded in the vent hole of the first L-shaped pipe 901, the first L-shaped pipe 901 is communicated with an upper portion of the water inlet pipe 8, a first sliding rod 902 is slidably connected to a lower portion of the first L-shaped pipe 901, a first push plate 903 slidably connected to the first L-shaped pipe 901 is fixedly connected to an upper end of the first sliding rod 902, a blocking plate 904 slidably connected to the sedimentation casing 1 is connected to a lower end of the first sliding rod 902 through a bolt, density of the blocking plate 904 is higher than water and lower than sludge impurities, separation of oil-water mixture and impurities is facilitated, the blocking plate 904 is provided with through holes distributed circumferentially, the first filter screen 905 is fixedly connected to the through holes of the blocking plate 904, when a liquid level of oilfield wastewater in the sedimentation casing 1 is flush with a lower surface of the blocking plate 904, the first filter screen 905 of the blocking plate 904 blocks impurities (sludge and various solid particles) in the oilfield wastewater, and the filtered oilfield wastewater enters the upper portion of the blocking plate 904 through the first filter screen 905.
As shown in fig. 3 and 5-7, the blocking component comprises a blocking block 1001, the blocking block 1001 is slidably connected in the water inlet pipe 8, the water inlet pipe 8 is provided with a rectangular limiting groove 801, the blocking block 1001 is welded with a sliding block slidably connected with the rectangular limiting groove 801, the blocking block 1001 is limited by the sliding block and slides along the rectangular limiting groove 801, a fixing ring 1002 is welded in the water inlet pipe 8, the fixing ring 1002 is located below the blocking block 1001, the water inlet pipe 8 is slidably connected with a blocking sleeve 1003, a first spring 1004 is fixedly connected between the blocking sleeve 1003 and the fixing ring 1002, a second filter screen 1005 is welded in the blocking sleeve 1003, the water inlet pipe 8 is provided with a limiting component for limiting the blocking sleeve 1003 and the blocking block 1001, and the blocking sleeve 1003 is provided with a sealing component for blocking the sludge discharge port 101.
As shown in fig. 3, 5 and 6, the water inlet pipe 8 is provided with a U-shaped sliding groove 802, a U-shaped rod 1006 is slidably connected in the U-shaped sliding groove 802, when the intercepting block 1001 contacts with the upper portion of the U-shaped rod 1006, the intercepting block 1001 drives the U-shaped rod 1006 to move upwards, the U-shaped rod 1006 drives the intercepting sleeve 1003 to move upwards, and the intercepting sleeve 1003 is provided with a rectangular groove 10031 matched with the U-shaped rod 1006.
As shown in fig. 6-8, the limiting component includes an L-shaped rod 1101, the L-shaped rod 1101 is slidably connected to the water inlet pipe 8, the intercepting sleeve 1003 is provided with a clamping groove, the L-shaped rod 1101 is in limiting fit with the clamping groove of the intercepting sleeve 1003 to prevent the intercepting sleeve 1003 from sliding, a second spring 1102 is fixedly connected between the L-shaped rod 1101 and the water inlet pipe 8, a limiting frame 1103 is welded at the right portion of the L-shaped rod 1101, a connecting rod 1104 is fixedly connected to the lower surface of the baffle plate 904, a wedge 1105 is welded at the lower end of the connecting rod 1104, the limiting frame 1103 is provided with an inclined surface matched with the wedge 1105, the baffle plate 904 drives the wedge 1105 to move upwards through the connecting rod 1104, the wedge 1105 contacts with the limiting frame 1103, and the limiting frame 1103 starts to move rightwards under the extrusion of the wedge 1105.
As shown in fig. 9 and 10, the sealing assembly includes a second sliding rod 1201, the second sliding rod 1201 is fixedly connected to the left side of the lower surface of the intercepting sleeve 1003, a second L-shaped pipe 1202 is embedded in the water inlet pipe 8, an air vent for balancing air pressure is formed in the upper portion of the second L-shaped pipe 1202, a filter screen is welded in the air vent of the second L-shaped pipe 1202, a second push disc 1203 welded to the second sliding rod 1201 is slidably connected to the upper portion of the second L-shaped pipe 1202, an air storage housing 1204 is communicated to the left side of the second L-shaped pipe 1202, an air vent for balancing air pressure is formed in the lower portion of the air storage housing 1204, the filter screen is welded in the air vent of the air storage housing 1204, a third push disc 1206 slidably connected to the air storage housing 1204 is fixedly connected to the upper portion of the third L-shaped pipe 1205, a blocking block 1207 hermetically matched with the sludge discharge port 101 is fixedly connected to the lower end of the third sliding rod 1205, the intercepting sleeve 1003 drives the second push disc 1203 to move downwards through the second sliding rod 1201, the second L-shaped pipe 1204 increases air pressure in the housing 1204, the blocking block 1207 moves downwards, and the blocking area between the blocking block 1207 is increased.
When the oilfield sewage needs to be subjected to sedimentation treatment, an operator fills the oilfield sewage into the water inlet pipe 8 through filling equipment, the oilfield sewage enters the water inlet pipe 8 and then is conveyed upwards, in an initial state, the intercepting block 1001 is located at the upper part of the water inlet pipe 8, the clamping groove of the intercepting sleeve 1003 is in limit fit with the L-shaped rod 1101, the intercepting sleeve 1003 is located on the upper side of the liquid inlet hole of the water inlet pipe 8, the first spring 1004 is in a compression state, after the liquid level of the oilfield sewage is flush with the liquid inlet hole of the water inlet pipe 8, the oilfield sewage in the water inlet pipe 8 enters the sedimentation shell 1 through the liquid inlet hole on the water inlet pipe, the oilfield sewage is uniformly and slowly added into the sedimentation shell 1 from the lower part of the sedimentation shell 1, the added oilfield sewage cannot directly impact an oil-water mixture above the sedimentation shell 1, the added oilfield sewage is uniformly dispersed into the sedimentation shell 1 from the liquid inlet hole of the water inlet pipe 8, the impact on the oilfield sewage in the sedimentation shell 1 is reduced, the stability of the oilfield sewage in the sedimentation shell 1 is improved, and the natural sedimentation of crude oil and water is facilitated.
With the increase of the oilfield sewage in the sedimentation shell 1, when the liquid level of the oilfield sewage in the sedimentation shell 1 is flush with the liquid inlet hole of the water inlet pipe 8, the oilfield sewage is continuously filled into the water inlet pipe 8, the liquid level of the oilfield sewage in the water inlet pipe 8 and the liquid level of the oilfield sewage in the sedimentation shell 1 rise simultaneously, when the liquid level of the oilfield sewage in the water inlet pipe 8 contacts with the second filter screen 1005, the oilfield sewage is filtered by the second filter screen 1005, the filtered impurities are located at the lower side of the second filter screen 1005 in the water inlet pipe 8, the filtered oil-water mixture enters the upper side of the second filter screen 1005 in the water inlet pipe 8, when the liquid level of the oilfield sewage in the sedimentation shell 1 is flush with the lower surface of the baffle disc 904, the first filter screen 905 of the baffle disc 904 intercepts the impurities (sludge and various solid particles), and the filtered oil-water mixture enters the upper side of the baffle disc 904 through the first filter screen 905, because the density of the baffle disc 904 is larger than that of water and smaller than that of sludge impurities, the baffle disc 904 is positioned between the interfaces of oil-water mixture and impurities, and the subsequent baffle disc 904 is ensured to push the impurities downwards, no oil-water mixture exists below the baffle disc 904, along with the increase of the oil-water mixture above the baffle disc 904, the liquid level of the oil-water mixture is contacted with the floating disc 5 to drive the floating disc 5 to move upwards, at the moment, because of the density difference between crude oil and water, the crude oil is positioned on the upper side of water, because the lower surface of the floating disc 5 is provided with a frustum-shaped groove, after the crude oil moves upwards and is contacted with the lower surface of the floating disc 5, the crude oil is extruded by the inclined plane of the lower surface of the floating disc 5 to start to gather towards the middle part and is positioned at the lower end of the telescopic pipe 4, the crude oil is convenient to gather, meanwhile, because the oil insulation coating is sprayed on the lower surface of the floating disc 5, the adhesion amount of the crude oil on the lower surface of the floating disc 5 is reduced, reducing the adhesion of crude oil within the settling shell 1.
The control terminal 6 starts the oil-well pump 3, the oil-well pump 3 pumps out crude oil on the lower surface of the floating disc 5 through the telescopic pipe 4, along with accumulation of impurities below the baffle disc 904 in the sedimentation shell 1, when the impurities in the sedimentation shell 1 are in contact with the lower surface of the baffle disc 904, the impurities in the sedimentation shell 1 continue to accumulate to cause the baffle disc 904 to start to move upwards, oilfield sewage in the water inlet pipe 8 can still enter the sedimentation shell 1 through the liquid inlet hole on the baffle disc, the baffle disc 904 drives the first push disc 903 to move upwards through the first sliding rod 902, the pressure above the first L-shaped pipe 901 and the pressure above the water inlet pipe 8 are gradually increased, the first push disc 903 pushes gas in the first L-shaped pipe 901 to enter the water inlet pipe 8, oil-gas mixture above the baffle disc 904 enters the first L-shaped pipe 901 through the vent hole of the first L-shaped pipe 901, and along with interception of the pressure above the water inlet pipe 8, the oil-water mixture 1001 starts to move downwards to extrude the oil-water mixture below the baffle disc to discharge into the sedimentation shell 1 from the liquid inlet hole of the water inlet pipe 8.
In the process that the blocking disc 904 moves upwards, the blocking disc 904 drives the wedge block 1105 to move upwards through the connecting rod 1104, the wedge block 1105 is in contact with the limiting frame 1103, the limiting frame 1103 starts to move rightwards under the extrusion of the wedge block 1105, the limiting frame 1103 drives the L-shaped rod 1101 to move rightwards, the limiting on the clamping groove of the intercepting sleeve 1003 is gradually relieved, when the L-shaped rod 1101 moves out of the clamping groove of the intercepting sleeve 1003, the first spring 1004 in a compressed state resets, the first spring 1004 drives the intercepting sleeve 1003 to move downwards to block the liquid inlet hole of the water inlet pipe 8, the upper surface of the rectangular groove 10031 of the intercepting sleeve 1003 is in contact with the U-shaped rod 1006, oilfield sewage in the water inlet pipe 8 does not enter the settling shell 1 through the liquid inlet hole on the intercepting sleeve, in the process that the intercepting sleeve 1003 moves downwards, the L-shaped rod 1101 is always in contact with the outer side face of the intercepting sleeve 1003, and the second spring 1102 is in a stretched state.
In the process that the intercepting sleeve 1003 moves downwards, the intercepting sleeve 1003 drives the second push disc 1203 to move downwards through the second sliding rod 1201, the air pressure in the second L-shaped pipe 1202 increases, meanwhile, the air pressure in the air storage housing 1204 increases, the air pressure in the air storage housing 1204 pushes the third push disc 1206 to move downwards, the third push disc 1206 drives the plugging block 1207 to move downwards through the third sliding rod 1205 to remove the plugging of the sludge discharge port 101, with the increase of the oilfield sewage in the water inlet pipe 8, as the liquid inlet hole of the water inlet pipe 8 is plugged, the oilfield sewage in the water inlet pipe 8 is conveyed upwards, the oilfield sewage is filtered through the second filter screen 1005 and then extrudes the intercepting block 1001, at this time, the intercepting block 1001 located at the lower part of the water inlet pipe 8 starts to move upwards (as shown in fig. 8), the air pressure in the first L-shaped pipe 901 increases, the air pressure in the first L-shaped pipe 901 pushes the first push disc 903 to move downwards, the first push disc 903 drives the blocking disc 904 to move downwards through the first sliding rod 902, the blocking disc 904 pushes impurities in the settling shell 1 to be discharged from the sludge discharge port 101, when the blocking block 1001 is in contact with the upper portion of the U-shaped rod 1006, the blocking block 1001 drives the U-shaped rod 1006 to move upwards, the U-shaped rod 1006 drives the blocking sleeve 1003 to move upwards, the first spring 1004 is compressed, when the clamping groove of the blocking sleeve 1003 is flush with the L-shaped rod 1101, the second spring 1102 resets, the L-shaped rod 1101 is inserted into the clamping groove of the blocking sleeve 1003, the blocking sleeve 1003 is limited, the blocking sleeve 1003 releases the blocking of a liquid inlet hole of the water inlet pipe 8, and oilfield sewage in the water inlet pipe 8 is continuously conveyed into the settling shell 1 by repeating the steps.
In the upward movement process of the intercepting sleeve 1003, the intercepting sleeve 1003 drives the second push disc 1203 to move upwards through the second sliding rod 1201, the blocking block 1207 moves upwards to block the sludge discharge port 101, the lower portion of the blocking block 1207 is in a circular truncated cone shape, the contact area between the blocking block 1207 and the sludge discharge port 101 is increased, the sealing performance between the blocking block 1207 and the sludge discharge port 101 is improved, leakage of impurities in the sedimentation shell 1 is avoided, and the control terminal 6 periodically starts the electromagnetic valve of the drainage pipe 2 to discharge water below the floating disc 5.
In conclusion, the blocking disc 904 moves downwards by pressurizing the air pressure, impurities in the sedimentation shell 1 are cleaned regularly, the phenomenon that the impurities in the sedimentation shell 1 are accumulated to influence upward conveying of an oil-water mixture in oilfield sewage is avoided, filling equipment does not need to be stopped in the process of treating the impurities in the sedimentation shell 1, the continuity of oilfield sewage treatment is improved, and the sedimentation efficiency of the oilfield sewage is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides an oil field is settling cask for sewage treatment with pressurization blowdown function, is including subsiding casing (1), subsides casing (1) and is provided with mud discharging port (101), and it has drain pipe (2) to subside casing (1) intercommunication, and drain pipe (2) are provided with the solenoid valve, and it has oil-well pump (3), its characterized in that to subside casing (1) rigid coupling: the settling shell (1) is fixedly connected with a telescopic pipe (4) communicated with an oil well pump (3) in a penetrating mode, a floating disc (5) communicated with the telescopic pipe (4) is connected in the settling shell (1) in a sliding mode, the settling shell (1) is fixedly connected with a control terminal (6), an electromagnetic valve of a drain pipe (2) and the oil well pump (3) are respectively and electrically connected with the control terminal (6), the settling shell (1) is fixedly connected with a sludge discharge pipe (7) communicated with a sludge discharge port (101), the diameter of the sludge discharge pipe (7) is larger than that of the sludge discharge port (101), a water inlet pipe (8) is embedded in the settling shell (1), the water inlet pipe (8) is provided with liquid inlet holes distributed at equal intervals in the circumferential direction, the water inlet pipe (8) is provided with a pressurizing mechanism used for discharging impurities in the settling shell (1), a plugging component used for plugging the liquid inlet hole of an oil field is arranged in the water inlet pipe (8), sewage is added into the water inlet pipe (8), and slowly and uniformly enters the lower portion of the settling shell (1) from the liquid inlet hole of the water inlet pipe (8);
the pressurizing mechanism comprises a first L-shaped pipe (901), a vent hole used for balancing air pressure is formed in the lower portion of the first L-shaped pipe (901), a filter screen is fixedly connected into the vent hole of the first L-shaped pipe (901), the first L-shaped pipe (901) is communicated with the water inlet pipe (8), the first L-shaped pipe (901) is connected with a first sliding rod (902) in a sliding mode, a first push disc (903) connected with the first L-shaped pipe (901) in a sliding mode is fixedly connected to one end of the first sliding rod (902), a blocking disc (904) connected with the sedimentation shell (1) in a sliding mode is fixedly connected to the other end of the first sliding rod (902), through holes distributed in the circumferential direction are formed in the blocking disc (904), and a first filter screen (905) is fixedly connected to the through holes of the blocking disc (904).
2. The settling tank for oilfield sewage treatment with the pressurized sewage discharge function as claimed in claim 1, wherein: the lower surface of the floating disc (5) is provided with a frustum-shaped groove, and the telescopic pipe (4) is communicated with one side of the floating disc (5) with the small diameter of the frustum-shaped groove and is used for collecting crude oil.
3. The settling tank for oilfield sewage treatment with the pressurized sewage discharge function as claimed in claim 2, wherein: the lower surface of the floating plate (5) is sprayed with oil insulation coating to reduce the adhesion of crude oil.
4. The settling tank with the function of pressure sewage disposal for oilfield sewage treatment as claimed in claim 1, wherein: the density of the baffle disc (904) is larger than that of water and smaller than that of sludge impurities, so that the oil-water mixture and the impurities can be conveniently separated.
5. The settling tank for oilfield sewage treatment with the pressurized sewage discharge function as claimed in claim 1, wherein: the plugging part is including intercepting piece (1001), intercept piece (1001) sliding connection is in inlet tube (8), inlet tube (8) are provided with rectangle spacing groove (801), intercept piece (1001) rigid coupling have with rectangle spacing groove (801) sliding connection's slider, inlet tube (8) rigid coupling has solid fixed ring (1002), inlet tube (8) sliding connection has interception sleeve (1003), the rigid coupling has first spring (1004) between interception sleeve (1003) and solid fixed ring (1002), the rigid coupling has second filter screen (1005) in interception sleeve (1003), inlet tube (8) set up the stop part who is used for spacing interception sleeve (1003) and interception piece (1001), interception sleeve (1003) are provided with the seal assembly who is used for shutoff mud outlet (101).
6. The settling tank for oilfield sewage treatment with the pressurized sewage discharge function according to claim 5, wherein: the water inlet pipe (8) is provided with a U-shaped sliding groove (802), a U-shaped rod (1006) is connected in the U-shaped sliding groove (802) in a sliding mode, the U-shaped rod (1006) is matched with the intercepting block (1001), and a rectangular groove (10031) matched with the U-shaped rod (1006) is formed in the intercepting sleeve (1003).
7. The settling tank for oilfield sewage treatment with the pressurized sewage discharge function according to claim 5, wherein: spacing part is including L shape pole (1101), L shape pole (1101) sliding connection is in inlet tube (8), interception sleeve (1003) are provided with the chucking groove, the spacing cooperation of the chucking groove of L shape pole (1101) and interception sleeve (1003), the rigid coupling has second spring (1102) between L shape pole (1101) and inlet tube (8), L shape pole (1101) rigid coupling has spacing frame (1103), fender dish (904) rigid coupling has connecting rod (1104), connecting rod (1104) rigid coupling has wedge (1105), spacing frame (1103) are provided with the inclined plane with wedge (1105) complex.
8. The settling tank for oilfield sewage treatment with the pressurized sewage discharge function as defined in claim 5, wherein: the sealing assembly comprises a second sliding rod (1201), the second sliding rod (1201) is fixedly connected to the intercepting sleeve (1003), the water inlet pipe (8) is fixedly connected with a second L-shaped pipe (1202), a vent hole used for balancing air pressure is formed in the upper portion of the second L-shaped pipe (1202), a filter screen is fixedly connected into the vent hole of the second L-shaped pipe (1202), a second push disc (1203) fixedly connected with the second sliding rod (1201) is connected in a sliding mode, the second L-shaped pipe (1202) is communicated with the air storage shell (1204), a vent hole used for balancing air pressure is formed in the lower portion of the air storage shell (1204), the filter screen is fixedly connected into the vent hole of the air storage shell (1204), the air storage shell (1204) is connected with a third sliding rod (1205) in a sliding mode, a third push disc (1206) slidably connected with the air storage shell (1204) is fixedly connected at one end of the third sliding rod (1205), and a blocking block (1207) in sealing fit with the mud discharging opening (101) is fixedly connected at the other end of the third sliding rod (1205).
9. The settling tank for oilfield sewage treatment with pressurized sewage discharge function according to claim 8, wherein: the lower part of the plugging block (1207) is set to be in a circular truncated cone shape and is used for increasing the contact area between the plugging block (1207) and the sludge discharge port (101).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310152811.2A CN115872494B (en) | 2023-02-23 | 2023-02-23 | Settling cask for oil field sewage treatment with pressurization blowdown function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310152811.2A CN115872494B (en) | 2023-02-23 | 2023-02-23 | Settling cask for oil field sewage treatment with pressurization blowdown function |
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| CN115872494A true CN115872494A (en) | 2023-03-31 |
| CN115872494B CN115872494B (en) | 2023-06-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117509858A (en) * | 2024-01-04 | 2024-02-06 | 河北丰源环保科技集团股份有限公司 | Coking wastewater treatment device |
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| US6120614A (en) * | 1997-11-14 | 2000-09-19 | Ez Environmental Solutions Corporation | Method and apparatus for pressure washing |
| CN111217462A (en) * | 2018-11-26 | 2020-06-02 | 陕西长兴石油科技有限公司 | High-efficient deoiling settling cask of oil field extraction water treatment |
| CN214763940U (en) * | 2021-06-17 | 2021-11-19 | 陈少芳 | Oil field sewage treatment settling cask |
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2023
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6120614A (en) * | 1997-11-14 | 2000-09-19 | Ez Environmental Solutions Corporation | Method and apparatus for pressure washing |
| CN111217462A (en) * | 2018-11-26 | 2020-06-02 | 陕西长兴石油科技有限公司 | High-efficient deoiling settling cask of oil field extraction water treatment |
| CN214763940U (en) * | 2021-06-17 | 2021-11-19 | 陈少芳 | Oil field sewage treatment settling cask |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117509858A (en) * | 2024-01-04 | 2024-02-06 | 河北丰源环保科技集团股份有限公司 | Coking wastewater treatment device |
| CN117509858B (en) * | 2024-01-04 | 2024-03-12 | 河北丰源环保科技集团股份有限公司 | Coking wastewater treatment device |
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| CN115872494B (en) | 2023-06-16 |
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