CN115872494B - Settling cask for oil field sewage treatment with pressurization blowdown function - Google Patents
Settling cask for oil field sewage treatment with pressurization blowdown function Download PDFInfo
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- CN115872494B CN115872494B CN202310152811.2A CN202310152811A CN115872494B CN 115872494 B CN115872494 B CN 115872494B CN 202310152811 A CN202310152811 A CN 202310152811A CN 115872494 B CN115872494 B CN 115872494B
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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
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a settling tank with a pressurizing and sewage discharging function for treating oilfield sewage. The utility model provides an oilfield sewage treatment is with setting tank with pressurization blowdown function, including setting housing, setting housing is provided with the mud mouth, and setting housing intercommunication has the drain pipe, and the drain pipe is provided with the solenoid valve, and setting housing rigid coupling has the oil-well pump, setting housing run-through rigid coupling have with the flexible pipe of oil-well pump intercommunication, and sliding connection has the floating disc with flexible pipe intercommunication in setting housing, setting housing rigid coupling have the mud pipe with the mud mouth intercommunication, setting housing has inlayed the inlet tube, and the inlet tube is provided with the feed liquor hole of circumference equidistant distribution. According to the invention, the oilfield sewage is uniformly and slowly added into the sedimentation shell from the lower part of the sedimentation shell, so that the added oilfield sewage cannot directly impact an oil-water mixture above the sedimentation shell, and the added oilfield sewage is uniformly dispersed into the sedimentation shell from the liquid inlet hole of the water inlet pipe, so that the impact on the oilfield sewage in the sedimentation 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 pressurizing and blowdown function for oilfield sewage treatment.
Background
The oilfield sewage treatment comprises the steps of natural sedimentation, flocculation, air floatation, filtration and the like, and when oilfield sewage treatment is carried out, the natural sedimentation is firstly needed, impurities in oilfield sewage are filtered, crude oil and water in a filtered oil-water mixture are separated, and a sedimentation tank is generally adopted for the natural sedimentation at present.
At present, the settling cask is at the in-process of using, directly pack the oilfield sewage to the settling cask in through the pipeline, at the in-process that oilfield sewage was filled, from last side direction oilfield sewage of adding in the settling cask, oilfield sewage can strike original oilfield sewage in the settling cask, cause the oilfield sewage to appear undulantly in the settling cask, undulant oilfield sewage has increased the time of follow-up sedimentation process, and oilfield sewage carries out impurity filtration treatment's in the settling cask, impurity after filtering need clear up the impurity of piling up in the settling cask, need operating personnel stop to pack oilfield sewage in the settling cask this moment, discharge the water in the settling cask after, clear up the impurity of piling up in the settling cask, if not stop to pack oilfield sewage can lead to newly packing oilfield sewage along with impurity discharge in the settling cask, cause oilfield sewage's waste, if stopping pack oilfield sewage and can lead to the settling cask can not continuous operation, the treatment efficiency of settling cask to oilfield 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 treating oilfield sewage, which has the functions of stabilizing sedimentation and pressurizing and discharging sewage.
The technical scheme of the invention is as follows: the utility model provides an oilfield sewage handles with setting tank with pressurization blowdown function, including setting housing, setting housing is provided with the mud mouth, setting housing intercommunication has the drain pipe, the drain pipe is provided with the solenoid valve, setting housing rigid coupling has the oil-well pump, setting housing rigid coupling has the flexible pipe with the oil-well pump intercommunication, sliding connection has the floating disc with flexible pipe intercommunication, setting housing rigid coupling has control terminal, the solenoid valve of drain pipe and oil-well pump respectively with control terminal electricity connection, setting housing rigid coupling has the mud pipe with the mud mouth intercommunication, the diameter of mud pipe is greater than the diameter of mud mouth, setting housing has inlayed the inlet tube, the inlet tube is provided with the feed liquor hole of circumference equidistant distribution, the inlet tube is provided with the pressurizing mechanism who is used for getting rid of the interior impurity of setting housing, be provided with the shutoff part that is used for shutoff its feed liquor hole in the inlet tube, add oilfield sewage to the inlet tube, oilfield sewage slowly even entering setting housing's lower part 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, which is small in diameter, of the frustum-shaped groove and is used for collecting crude oil.
Preferably, the lower surface of the floating disc is sprayed with oil-insulating paint, so that the adhesion of crude oil is reduced.
Preferably, the pressurizing mechanism comprises a first L-shaped pipe, a vent hole for balancing air pressure is formed in the lower portion of the first L-shaped pipe, a filter screen is fixedly connected in the vent hole of the first L-shaped pipe, the first L-shaped pipe is communicated with a water inlet pipe, the first L-shaped pipe is slidably connected with a first sliding rod, one end of the first sliding rod is fixedly connected with a first pushing disc slidably connected with the first L-shaped pipe, the other end of the first sliding rod is fixedly connected with a baffle disc slidably connected with a sedimentation shell, through holes distributed in the circumferential direction are formed in the baffle disc, and the through holes of the baffle disc are fixedly connected with the first filter screen.
Preferably, the density of the baffle disc is larger than that of water and smaller than that of sludge impurities, so that the separation of an oil-water mixture and impurities is facilitated.
Preferably, the blocking component comprises a blocking block, the blocking block is slidably connected in the water inlet pipe, the water inlet pipe is provided with a rectangular limit groove, the blocking block is fixedly connected with a sliding block which is slidably connected with the rectangular limit groove, the water inlet pipe is fixedly connected with a fixing ring, the water inlet pipe is slidably connected with a blocking sleeve, 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 limit component for limiting the blocking sleeve and the blocking block, and the blocking sleeve is provided with a sealing component for blocking a mud discharging port.
Preferably, the water inlet pipe is provided with a U-shaped chute, a U-shaped rod is connected in a sliding manner in the U-shaped chute, the U-shaped rod is matched with the interception block, and the interception sleeve is provided with a rectangular groove matched with the U-shaped rod.
Preferably, the limiting component comprises an L-shaped rod, the L-shaped rod is slidably connected with the water inlet pipe, the interception sleeve is provided with a clamping groove, the L-shaped rod is in limiting fit with the clamping groove of the interception sleeve, a second spring is fixedly connected between the L-shaped rod and the water inlet pipe, a limiting frame is fixedly connected with the L-shaped rod, a connecting rod is fixedly connected with the baffle disc, a wedge block is fixedly connected with the connecting rod, and an inclined surface matched with the wedge block is arranged on the limiting frame.
Preferably, the seal assembly comprises a second slide bar fixedly connected with the interception sleeve, a second L-shaped pipe is fixedly connected with the water inlet pipe, a vent hole for balancing air pressure is formed in the upper portion of the second L-shaped pipe, a filter screen is fixedly connected in the vent hole of the second L-shaped pipe, a second pushing disc fixedly connected with the second slide bar is slidably connected with the second L-shaped pipe, a gas storage shell is communicated with the second L-shaped pipe, a vent hole for balancing air pressure is formed in the lower portion of the gas storage shell, the filter screen is fixedly connected in the vent hole of the gas storage shell, a third slide bar is slidably connected with the gas storage shell, a third pushing disc is fixedly connected with one end of the third slide bar, and a blocking block matched with the mud discharging port in a sealing mode is fixedly connected at the other end of the third slide bar.
Preferably, the lower part of the blocking block is provided in a truncated cone shape for increasing the contact area between the blocking block and the sludge discharge port.
The invention has the beneficial effects that: according to the invention, the oilfield sewage is uniformly and slowly added into the sedimentation shell from the lower part of the sedimentation shell, so that the added oilfield sewage cannot directly impact an oil-water mixture above the sedimentation shell, the added oilfield sewage is uniformly dispersed into the sedimentation shell from the liquid inlet hole of the water inlet pipe, the impact on the oilfield sewage in the sedimentation shell is reduced, the smoothness of the oilfield sewage in the sedimentation shell is improved, natural sedimentation of crude oil and water is facilitated, the conical groove is arranged on the lower surface of the floating disc, after the crude oil moves upwards to be in contact with the lower surface of the floating disc, the crude oil starts to gather towards the middle part by being extruded by the inclined surface of the lower surface of the floating disc, the baffle disc moves downwards by pressurizing air pressure, and impurities in the sedimentation shell are periodically cleaned, so that the upward transportation of the oil-water mixture in the oilfield sewage is prevented from being influenced by the accumulation of the impurities in the sedimentation shell, filling equipment is not required to be stopped in the process of treating the impurities in the sedimentation 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 of the present invention.
FIG. 3 is a partial cross-sectional view of a perspective structure of the pressurizing mechanism of the present invention.
Fig. 4 is an enlarged perspective view of fig. 3 a according to the present invention.
Fig. 5 is an enlarged perspective view of fig. 3B according to the present invention.
Fig. 6 is a partial cross-sectional view of a three-dimensional structure of a occluding component of the present invention.
Fig. 7 is a partial cross-sectional view of a three-dimensional structure of a spacing member of the present invention.
Fig. 8 is a schematic perspective view of a U-shaped bar according to the present invention.
Fig. 9 is a partial cross-sectional view of a solid structure of the seal assembly of the present invention.
Fig. 10 is an enlarged perspective view of fig. 9C according to the present invention.
Reference numerals in the figures: 1-sedimentation shell, 101-mud discharge port, 2-drain pipe, 3-oil pump, 4-telescopic pipe, 5-floating disc, 6-control terminal, 7-mud discharge pipe, 8-inlet tube, 801-rectangular limit groove, 802-U-shaped chute, 901-first L-shaped tube, 902-first slide bar, 903-first push disc, 904-baffle disc, 905-first filter screen, 1001-interception block, 1002-fixed ring, 1003-interception sleeve, 10031-rectangular groove, 1004-first spring, 1005-second filter screen, 1006-U-shaped rod, 1101-L-shaped rod, 1102-second spring, 1103-limit frame, 1104-connecting rod, 1105-wedge block, 1201-second slide bar, 1202-second L-shaped tube, 1203-second push disc, 1204-gas storage shell, 1205-third slide bar, 1206-third push disc, 1207-blocking block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The sedimentation tank with the pressurization and pollution discharge functions for oilfield sewage treatment is shown in figures 1 and 2, and comprises a sedimentation shell 1, wherein a sludge discharge port 101 is arranged on the left side of the lower part of the sedimentation shell 1, a water discharge pipe 2 is communicated with the left side of the middle part of the sedimentation shell 1, an electromagnetic valve is arranged on the water discharge pipe 2, an oil pump 3 is fixedly connected to the upper surface of the sedimentation shell 1, a telescopic pipe 4 communicated with the oil pump 3 is fixedly connected to the sedimentation shell 1 in a penetrating manner, a floating disc 5 communicated with the telescopic pipe 4 is connected to the inner sliding manner of the sedimentation shell 1, the telescopic pipe 4 ensures the floating disc 5 to float up and down, a conical groove is arranged on the lower surface of the floating disc 5, the telescopic pipe 4 is communicated with one side with the conical groove of the floating disc 5, after crude oil moves upwards to be contacted with the lower surface of the floating disc 5, the crude oil begins to gather towards the middle part after being extruded by the inclined surface of the lower surface of the floating disc 5, the gathered crude oil is positioned at the lower end of the telescopic pipe 4, the oil-insulating paint is convenient for concentrating crude oil, the adhesion of the crude oil on the lower surface of the floating disc 5 is reduced, the 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 pump 3 is electrically connected with the control terminal 6, the sedimentation shell 1 is fixedly connected with a mud discharging pipe 7 communicated with a mud discharging port 101, the diameter of the mud discharging pipe 7 is larger than that of the mud discharging 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 distributed at equal intervals circumferentially, the oil field sewage is uniformly and slowly added into the sedimentation shell 1 from the lower part of the sedimentation shell 1, so that the added oil field sewage cannot directly impact an oil-water mixture above the sedimentation shell 1, the added oil field sewage is uniformly dispersed into 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 oilfield sewage in the sedimentation shell 1 is improved, natural sedimentation of crude oil and water is facilitated, the water inlet pipe 8 is provided with a pressurizing mechanism for removing impurities in the sedimentation shell 1, and the water inlet pipe 8 is internally provided with a plugging part for plugging a liquid inlet hole of the water inlet pipe.
As shown in fig. 3 and 4, the pressurizing mechanism comprises a first L-shaped pipe 901, a vent hole for balancing air pressure is formed in the 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 the upper portion of a water inlet pipe 8, a first sliding rod 902 is connected to the lower portion of the first L-shaped pipe 901 in a sliding mode, a first pushing disc 903 is fixedly connected to the upper end of the first sliding rod 902 in a sliding mode, the lower end of the first sliding rod 902 is connected with a baffle disc 904 in sliding mode with the settling shell 1 through bolts, the density of the baffle disc 904 is larger than that of water and smaller than that of sludge impurities, separation of oil-water mixtures and impurities is facilitated, through holes distributed in the circumferential direction are formed in the baffle disc 904, a first filter screen 905 is fixedly connected to the through holes of the baffle disc 904, impurities (sludge and various solid particles) in the oilfield sewage are intercepted by the first filter screen 905 in the baffle disc 904 when the liquid level of the oilfield sewage in the settling shell 1 is flush with the lower surface of the baffle disc 904, and the filtered oil-water mixture enters the upper portion 905 of the baffle disc 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 a 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 slides along the rectangular limiting groove 801 under the limit of the sliding block, a fixing ring 1002 is welded in the water inlet pipe 8, the fixing ring 1002 is positioned 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 chute 802, a U-shaped rod 1006 is slidably connected in the U-shaped chute 802, and when the interception block 1001 contacts with the upper portion of the U-shaped rod 1006, the interception block 1001 drives the U-shaped rod 1006 to move upwards, the U-shaped rod 1006 drives the interception sleeve 1003 to move upwards, and the interception 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 comprises an L-shaped rod 1101, the L-shaped rod 1101 is slidably connected to the water inlet pipe 8, the blocking sleeve 1003 is provided with a clamping groove, the L-shaped rod 1101 is in limiting fit with the clamping groove of the blocking sleeve 1003, the blocking sleeve 1003 is prevented 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 part of the L-shaped rod 1101, a connecting rod 1104 is fixedly connected to the lower surface of the baffle disc 904, a wedge block 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 block 1105, the baffle 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, and the limiting frame 1103 starts to move rightwards under the extrusion of the wedge block 1105.
As shown in fig. 9 and 10, the sealing assembly comprises a second slide bar 1201, the second slide bar 1201 is fixedly connected to the left side of the lower surface of the interception sleeve 1003, a second L-shaped pipe 1202 is embedded in the water inlet pipe 8, a vent hole for balancing air pressure is formed in the upper portion of the second L-shaped pipe 1202, a filter screen is welded in the vent hole of the second L-shaped pipe 1202, a second push plate 1203 welded with the second slide bar 1201 is slidingly connected to the upper portion of the second L-shaped pipe 1202, an air storage shell 1204 is communicated to the left side of the second L-shaped pipe 1202, a vent hole for balancing air pressure is formed in the lower portion of the air storage shell 1204, a filter screen is welded in the vent hole of the air storage shell 1204, a third slide bar 1205 is slidingly connected to the air storage shell 1204, a blocking block 1207 which is slidingly connected with the air storage shell 1204 is fixedly connected to the upper portion of the third slide bar 1205, a blocking block 1207 which is in sealing fit with the mud discharge opening 101 is fixedly connected to the lower end of the third slide bar 1205, the interception sleeve 1003 drives the second push plate 1203 to move downwards, the air pressure in the second L-shaped pipe 1202 is increased, meanwhile, the air pressure in the air storage shell 1204 is increased, the third push plate 1204 is pushed down, the third push plate 1204 is driven to move downwards, the third push block 1206 is pushed down by the third slide bar is pushed by the second slide bar 1204, the third push block 1207 is pushed down by the third slide block 1207, and the third slide bar is contacted with the mud discharge opening 120101, and the area is prevented from being blocked by the sealing block 1201.
When needs subside the processing to the oilfield sewage, operating personnel fills inlet tube 8 with oilfield sewage through filling equipment, upwards carry after oilfield sewage gets into inlet tube 8, under the initial condition, interception piece 1001 is located the upper portion in inlet tube 8, the chucking groove of interception sleeve 1003 and the spacing cooperation of L shape pole 1101, interception sleeve 1003 is located the upside of inlet tube 8 feed liquor hole, first spring 1004 is in compression state, after oilfield sewage's liquid level and inlet tube 8's feed liquor hole parallel and level, oilfield sewage in inlet tube 8 gets into sedimentation shell 1 through the feed liquor hole on it, through evenly slow the joining oilfield sewage in it from sedimentation shell 1's lower part, make the oilfield sewage that adds can't directly strike sedimentation shell 1 top's oily water mixture, and the oilfield sewage that adds evenly disperses to sedimentation shell 1 from inlet tube 8's feed liquor hole, the impact to sedimentation shell 1 interior oilfield sewage of sedimentation shell 1 has been reduced, sedimentation shell 1 interior oilfield sewage's of crude oil and water's nature subsides smoothness has been improved.
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 level 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 are simultaneously raised, when the liquid level of the oilfield sewage in the water inlet pipe 8 is contacted with the second filter screen 1005, the filtered impurities are positioned at the lower side of the second filter screen 1005 in the water inlet pipe 8 after the oilfield sewage is filtered by the second filter screen 1005, 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 level 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) in the oilfield sewage, 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 plate 904 is larger than that of water and smaller than that of sludge impurities, the baffle plate 904 is positioned between the interfaces of oil-water mixture and impurities, so that the fact that the oil-water mixture does not exist below the baffle plate 904 in the process of pushing the impurities downwards by the baffle plate 904 is ensured, the oil-water mixture is driven to move upwards after the liquid level of the oil-water mixture contacts with the floating plate 5 along with the increase of the oil-water mixture above the baffle plate 904, at the moment, because the density difference of crude oil and water is caused, the crude oil is positioned on the upper side of the water, because the lower surface of the floating plate 5 is provided with a frustum-shaped groove, after the crude oil moves upwards to contact with the lower surface of the floating plate 5, the crude oil begins to gather towards the middle part by the extrusion of the inclined surface of the lower surface of the floating plate 5 and is positioned at the lower end of the telescopic pipe 4, so that the crude oil is convenient to concentrate, meanwhile, because the oil insulating paint is sprayed on the lower surface of the floating plate 5, the adhesion amount of the crude oil on the lower surface of the floating plate 5 is reduced, the adhesion of crude oil in the settling casing 1 is reduced.
The control terminal 6 starts the oil-well pump 3, the oil-well pump 3 draws crude oil from the lower surface of the floating disc 5 through the telescopic tube 4, along with the accumulation of impurities below the baffle disc 904 in the sedimentation shell 1, when the height of the impurities in the sedimentation shell 1 is 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 still can enter the sedimentation shell 1 through the liquid inlet holes on the baffle disc 904, the first push disc 903 is driven by the first slide rod 902 to move upwards, the pressure above the first L-shaped pipe 901 and the water inlet pipe 8 is gradually increased, the first push disc 903 pushes gas in the first L-shaped pipe 901 to enter the water inlet pipe 8, the oil-gas mixture above the baffle disc 904 enters the sedimentation shell through the vent hole of the first L-shaped pipe 901, and along with the increase of the pressure above the water inlet pipe 8, the interception block 1001 starts to move downwards to extrude the oil-water mixture below the interception block 1001 to be discharged into the sedimentation shell 1 from the liquid inlet holes of the water inlet pipe 8.
In the process that the baffle plate 904 moves upwards, the baffle plate 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 to gradually release the limit of the clamping groove of the blocking sleeve 1003, when the L-shaped rod 1101 moves out of the clamping groove of the blocking sleeve 1003, the first spring 1004 in a compressed state resets, the first spring 1004 drives the blocking 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 blocking sleeve 1003 is in contact with the U-shaped rod 1006, oilfield sewage in the water inlet pipe 8 does not enter the sedimentation shell 1 through the liquid inlet hole on the U-shaped rod, and in the process that the blocking sleeve 1003 moves downwards, the L-shaped rod 1101 is always in contact with the outer side surface of the blocking sleeve 1003, and the second spring 1102 is in a stretched state.
In the process that the interception sleeve 1003 moves downwards, the interception sleeve 1003 drives the second push disc 1203 to move downwards through the second slide rod 1201, the air pressure in the second L-shaped tube 1202 is increased, the air pressure in the air storage shell 1204 pushes the third push disc 1206 to move downwards, the third push disc 1206 drives the blocking block 1207 to move downwards through the third slide rod 1205 to release the blocking of the mud discharging port 101, along with the increase of oilfield sewage in the water inlet pipe 8, as the liquid inlet hole of the water inlet pipe 8 is blocked, oilfield sewage in the water inlet pipe 8 is conveyed upwards, the interception block 1001 is extruded after being filtered by the second filter screen 1005, at the moment, the interception block 1001 positioned 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 tube 901 is increased, the air pressure in the first L-shaped tube 901 pushes the first push disc 903 to move downwards, the first push disc 903 drives the blocking disc 904 to move downwards, the blocking disc 904 pushes impurities in the sedimentation shell 1 to be discharged from the mud discharging port 101, when the interception block 1001 contacts with the upper part of the U-shaped rod 1001, the U-shaped rod 1003 drives the U-shaped rod 1003 to move upwards, the interception block 1003 is pushed by the U-shaped sleeve 1003 to move towards the water inlet pipe 8, and the interception sleeve 1101 is pushed by the water inlet pipe 1101 to move towards the water inlet pipe 1, and the step of the interception sleeve 1101 is pressed by the water inlet pipe 1 is stopped by the upper, and the interception sleeve 1101 is pressed by the upper spring, and the interception sleeve is pushed by the upper, and the interception sleeve is pushed down.
In the process that the interception sleeve 1003 moves upwards, the interception sleeve 1003 drives the second push disc 1203 to move upwards through the second slide bar 1201, the blocking block 1207 moves upwards to block the mud discharging port 101, and as the lower part of the blocking block 1207 is in a round table shape, the contact area between the blocking block 1207 and the mud discharging port 101 is increased, the tightness between the blocking block 1207 and the mud discharging port 101 is improved, impurity leakage in the sedimentation shell 1 is avoided, and the control terminal 6 periodically starts the electromagnetic valve of the drain pipe 2 to discharge water below the floating disc 5.
In summary, the baffle 904 moves downwards by pressurizing the air pressure, so that the impurities in the sedimentation shell 1 are cleaned regularly, the upward conveying of the oil-water mixture in the oilfield sewage is prevented from being influenced by the accumulation of the impurities in the sedimentation shell 1, the filling equipment is not required to be stopped in the process of treating the impurities in the sedimentation shell 1, the continuity of treating the oilfield sewage is improved, and the sedimentation efficiency of the oilfield sewage is improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (5)
1. The utility model provides an oilfield sewage handles with setting tank with pressurization blowdown function, including setting housing (1), setting housing (1) is provided with mud mouth (101), and setting housing (1) intercommunication has drain pipe (2), and drain pipe (2) are provided with the solenoid valve, and setting housing (1) rigid coupling has oil-well pump (3), its characterized in that: the sedimentation shell (1) is fixedly connected with a telescopic pipe (4) communicated with the oil well pump (3) in a penetrating manner, a floating disc (5) communicated with the telescopic pipe (4) is connected in a sliding manner in the sedimentation shell (1), a control terminal (6) is fixedly connected in the sedimentation shell (1), an electromagnetic valve of the water drain pipe (2) and the oil well pump (3) are respectively and electrically connected with the control terminal (6), a sludge discharge pipe (7) communicated with a sludge discharge port (101) is fixedly connected in the sedimentation shell (1), 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 sedimentation shell (1), the water inlet pipe (8) is provided with circumferentially equidistant liquid inlet holes, the water inlet pipe (8) is provided with a pressurizing mechanism for removing impurities in the sedimentation shell (1), a blocking part for blocking the liquid inlet holes is arranged in the water inlet pipe (8), sewage is added into the water inlet pipe (8), and the oilfield sewage slowly and uniformly enters the lower part of the sedimentation shell (1) from the liquid inlet holes of the water inlet pipe (8);
the pressurizing mechanism comprises a first L-shaped pipe (901), a vent hole for balancing air pressure is formed in the lower portion of the first L-shaped pipe (901), a filter screen is fixedly connected in the vent hole of the first L-shaped pipe (901), the first L-shaped pipe (901) is communicated with a water inlet pipe (8), a first sliding rod (902) is connected with the first L-shaped pipe (901) in a sliding mode, a first pushing disc (903) which is connected with the first L-shaped pipe (901) in a sliding mode is fixedly connected at one end of the first sliding rod (902), a baffle disc (904) which is connected with the sedimentation shell (1) in a sliding mode is fixedly connected at the other end of the first sliding rod (902), through holes distributed in the circumferential direction are formed in the baffle disc (904), and a first filter screen (905) is fixedly connected at the through holes of the baffle disc (904);
the blocking component comprises a blocking block (1001), the blocking block (1001) is slidably connected in a water inlet pipe (8), the water inlet pipe (8) is provided with a rectangular limiting groove (801), the blocking block (1001) is fixedly connected with a sliding block which is slidably connected with the rectangular limiting groove (801), the water inlet pipe (8) is fixedly connected with a fixed ring (1002), 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 fixed ring (1002), a second filter screen (1005) is fixedly connected in the blocking sleeve (1003), the water inlet pipe (8) is provided with a limiting component which is used for limiting the blocking sleeve (1003) and the blocking block (1001), and the blocking sleeve (1003) is provided with a sealing component which is used for blocking a mud discharging port (101);
the water inlet pipe (8) is provided with a U-shaped chute (802), a U-shaped rod (1006) is connected in a sliding manner in the U-shaped chute (802), the U-shaped rod (1006) is matched with the interception block (1001), and the interception sleeve (1003) is provided with a rectangular groove (10031) matched with the U-shaped rod (1006);
the limiting component comprises an L-shaped rod (1101), the L-shaped rod (1101) is slidably connected to the water inlet pipe (8), the blocking sleeve (1003) is provided with a clamping groove, the L-shaped rod (1101) is in limiting fit with the clamping groove of the blocking sleeve (1003), a second spring (1102) is fixedly connected between the L-shaped rod (1101) and the water inlet pipe (8), a limiting frame (1103) is fixedly connected with the L-shaped rod (1101), a connecting rod (1104) is fixedly connected with the blocking disc (904), a wedge block (1105) is fixedly connected with the connecting rod (1104), and an inclined surface matched with the wedge block (1105) is arranged on the limiting frame (1103);
the sealing assembly comprises a second slide rod (1201), the second slide rod (1201) is fixedly connected to an interception sleeve (1003), a second L-shaped pipe (1202) is fixedly connected to a water inlet pipe (8), a vent hole for balancing air pressure is formed in the upper portion of the second L-shaped pipe (1202), a filter screen is fixedly connected in the vent hole of the second L-shaped pipe (1202), the second L-shaped pipe (1202) is slidably connected with a second pushing disc (1203) fixedly connected with the second slide rod (1201), the second L-shaped pipe (1202) is communicated with an air storage shell (1204), a vent hole for balancing air pressure is formed in the lower portion of the air storage shell (1204), the filter screen is fixedly connected in the vent hole of the air storage shell (1204), a third slide rod (1205) is slidably connected to the air storage shell (1204), and a blocking block (1207) which is in sealing fit with the mud discharge opening (101) is fixedly connected to the other end of the third slide rod (1205).
2. A settling tank for oilfield sewage treatment having a pressurized blowdown 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. A settling tank for oilfield sewage treatment having a pressurized blowdown function as claimed in claim 2, wherein: the lower surface of the floating disc (5) is sprayed with oil-insulating paint, so that the adhesion of crude oil is reduced.
4. A settling tank for oilfield sewage treatment having a pressurized blowdown function 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 separation of the oil-water mixture and the impurities is facilitated.
5. A settling tank for oilfield sewage treatment having a pressurized blowdown function as claimed in claim 1, wherein: the lower part of the blocking block (1207) is provided with a round table shape and is used for increasing the contact area between the blocking block (1207) and the mud discharging 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 |
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| 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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| CN115872494B true CN115872494B (en) | 2023-06-16 |
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| CN118005161B (en) * | 2024-04-09 | 2024-07-09 | 伟伦鞋业(山东)有限公司 | Decolorization sedimentation device for wastewater of shoemaking factory |
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| 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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