CN114737945B - High-efficient degritting separation measurement integration sledge of adaptation variable operating mode - Google Patents
High-efficient degritting separation measurement integration sledge of adaptation variable operating mode Download PDFInfo
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- CN114737945B CN114737945B CN202210472809.9A CN202210472809A CN114737945B CN 114737945 B CN114737945 B CN 114737945B CN 202210472809 A CN202210472809 A CN 202210472809A CN 114737945 B CN114737945 B CN 114737945B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/35—Arrangements for separating materials produced by the well specially adapted for separating solids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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Abstract
The invention discloses an efficient desanding, separating and metering integrated sledge adapting to variable working conditions, which comprises a gas-liquid separator, a plurality of cyclone desanding devices, a lower cylinder body and an input pipe for inputting a solid-liquid-gas three-phase mixture; the cyclone sand remover is provided with a first water inlet for communicating an input pipe, an overflow port for communicating a gas-liquid separator and a sand discharge port for communicating one end of the lower cylinder, and a cleaning device is arranged on the sand discharge port. The invention integrates the functions of high-efficiency cyclone sand removal, gas-liquid separation metering, sand discharge, back flushing and the like; the cyclone sand remover is provided with a plurality of cyclone sand removers, can remove sand efficiently under different gas well working conditions, can ensure continuous sand removal, and does not influence the productivity of a gas well; the measuring ranges of the first flow transmitter and the second flow transmitter are different, the gases with different flow rates are measured respectively, and the measuring precision is improved on the basis of guaranteeing the measurement.
Description
Technical Field
The invention relates to the technical field of natural gas desanding, in particular to a high-efficiency desanding, separating and metering integrated sledge adapting to variable working conditions.
Background
Compact gas reservoirs (shale gas) are usually produced after large sand fracturing, and fracturing sand is discharged in a discharge period and a normal production process due to incomplete and rapid production of fracturing flowback, so that normal production of a gas well, gas well yield and safety of ground equipment and pipelines are seriously affected.
In the prior art, the sand remover and the separation metering device are usually arranged separately, and the sand remover and the separation metering device are narrow in adaptation working condition range and cannot meet the requirements of efficient phase separation and accurate metering when the working condition of a gas well changes, so that the production safety of the gas well and the accuracy and the productivity of dynamic analysis are affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the high-efficiency sand removal separation metering integrated sledge which has a large adaptation working condition range and is suitable for variable working conditions.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the high-efficiency sand removal separation metering integrated sledge suitable for variable working conditions comprises a gas-liquid separator, a plurality of cyclone sand separators, a lower cylinder body and an input pipe for inputting a solid-liquid-gas three-phase mixture;
the cyclone sand remover is provided with a first water inlet for communicating an input pipe, an overflow port for communicating a gas-liquid separator and a sand discharge port for communicating one end of a lower cylinder, and the sand discharge port is provided with a cleaning device;
the gas-liquid separator is provided with a first gas transmission port, a second water inlet used for communicating the input pipe with the overflow port and a liquid outlet used for communicating the other end of the lower cylinder, the first gas transmission port is respectively communicated with a first flow transmitter and a second flow transmitter, the first flow transmitter and the second flow transmitter are both communicated with the output pipe, and the measuring ranges of the first flow transmitter and the second flow transmitter are different;
a first valve, a second valve, a third valve and a fourth valve are respectively arranged between the input pipe and the first water inlet, between the input pipe and the second water inlet, between the overflow port and the second water inlet, and between the sand discharge port and the lower cylinder;
the gas-liquid separator and the lower cylinder are respectively provided with a first back flush water pipe and a second back flush water pipe.
The beneficial effects of adopting above-mentioned technical scheme are: the cyclone sand remover is used for separating sand from the solid-liquid-gas three-phase mixture, wherein the solid-liquid-gas three-phase mixture enters the cyclone sand remover from a first water inlet and separates the sand from the cyclone sand remover, the separated sand is discharged from a sand discharge port, and the residual liquid-gas two-phase mixture is discharged from an overflow port; the gas-liquid separator is used for separating the liquid-gas two-phase mixture into a liquid phase and a gas phase, wherein the liquid-gas two-phase mixture enters the gas-liquid separator from the second water inlet and separates the gas phase from the liquid-gas two-phase mixture, the separated liquid phase is discharged from the liquid outlet, and the gas phase is discharged from the first gas delivery port; the lower cylinder is used for collecting sand discharged from the sand discharge port and liquid phase discharged from the liquid discharge port;
the cyclone sand remover is provided with a plurality of cyclone sand removers, and can remove sand efficiently under different gas well working conditions; when the gas well produces less, a small amount of cyclone sand removers can be opened; when the gas well produces more, more cyclone sand removers can be opened;
in addition, the cyclone sand remover is provided with a plurality of sand removers, so that continuous sand removal can be ensured, and the productivity of a gas well is not influenced; when more sand is accumulated at the sand discharge port of the cyclone sand remover in operation, the cyclone sand remover can be closed, and the other cyclone sand remover is opened to remove sand;
when the gas well does not produce sand, the liquid-gas two-phase mixture can be directly input into the gas-liquid separator through the input pipe for gas-liquid separation, so that the treatment procedures are reduced, and the productivity and the production efficiency are improved;
the measuring ranges of the first flow transmitter and the second flow transmitter are different, and the gases with different flow rates are measured respectively; when the gas flow is large, a flow transmitter with a large measurement range is used for measurement; when the gas flow is smaller, a flow transmitter with a smaller measuring range is used for measuring; therefore, on the basis of guaranteeing measurement, the metering precision is improved.
The sand discharge port is provided with a cleaning device for cleaning the sand discharge port and preventing sand from blocking the sand discharge port; the first back flush water pipe and the second back flush water pipe respectively flush the gas-liquid separator and the lower cylinder, which is beneficial to cleaning the gas-liquid separator and the lower cylinder.
Further, a plurality of raised hemispheres are uniformly arranged on the inner wall of the cyclone sand remover, a filter screen is slidably arranged at the lower end of the overflow port, and a floater is arranged on the filter screen.
The beneficial effects of adopting above-mentioned technical scheme are: the inner wall of the cyclone sand remover is provided with a convex hemispherical body, so that the contact area of the inner wall and the solid-liquid-gas three-phase mixture is increased, and when the solid-liquid-gas three-phase mixture rotates along the inner wall, a part of sand can be attached to the convex hemispherical body, so that the separation efficiency of the sand is improved;
the filter screen is used for filtering fine sand, so that the fine sand is prevented from entering the overflow port; however, as the fine sand can block the filter screen, the filter screen is arranged on the overflow port in a sliding way, and a floater is arranged on the filter screen; when the sand is not attached to the filter screen, the filter screen slightly floats upwards under the influence of the floater, and when the sand is attached to the filter screen, the filter screen can sink downwards under the influence of gravity, so that the sand on the filter screen is partially fallen off, and the filter screen starts to float upwards again; the up-and-down reciprocating motion of the filter screen forms vibration, so that sand attached to the filter screen falls off, the filter screen is prevented from being blocked by fine sand, and the normal operation of the cyclone sand remover is ensured.
Further, the cleaning device comprises a plurality of linear driving mechanisms uniformly arranged along the circumferential direction of the sand discharge opening, the output end of each linear driving mechanism is fixedly connected with a sliding block, the moving direction of each sliding block is the same as the height direction of the sand discharge opening, and the sliding blocks are uniformly provided with a plurality of groups of push-pull assemblies along the moving direction;
each group of push-pull assembly comprises two groups of rollers hinged on the sliding block, a scraping rod is arranged between the two groups of rollers, the middle part of the scraping rod is hinged on the sand discharge port, and one end of the scraping rod, which is far away from the rollers, extends into the sand discharge port.
The beneficial effects of adopting above-mentioned technical scheme are: the linear driving mechanism drives the sliding block to move, so that the roller on the sliding block pushes or pulls the scraping rod to rotate around the hinging point on the sand discharge port; after the cyclone sand remover separates sand, the sand piled up at the sand discharge port is easy to block due to hardening, and a plurality of linear driving mechanisms are simultaneously driven, so that a plurality of scraping rods simultaneously scrape the sand close to the side wall of the sand discharge port, thereby breaking the hardening state of the sand and enabling the sand to naturally fall under the influence of gravity; in addition, a plurality of groups of push-pull components are uniformly arranged on the sliding block along the moving direction, so that the scraping rods with different heights scrape sand with different heights, and the anti-blocking effect is ensured.
Further, the middle part of the scraping rod is a round block, a first rotating groove matched with the round block is formed in the sand discharge opening, second rotating grooves used for providing rotating space are formed in two ends of the first rotating groove, travel switches are arranged on two side walls of the second rotating groove, and the travel switches and the linear driving mechanism are electrically connected with the first controller.
The beneficial effects of adopting above-mentioned technical scheme are: the middle part of the scraping rod is a round block, a first rotating groove matched with the round block is formed in the sand discharge port, and second rotating grooves for providing rotating space are formed in the two ends of the first rotating groove, so that the scraping rod can smoothly rotate, a gap is not formed between the middle part of the scraping rod and the sand discharge port during rotation, and liquid in the cyclone sand remover is prevented from flowing out from the scraping rod;
the travel switches are arranged on the two side walls of the second rotating groove, so that the automation degree is improved, and the manual control is reduced; when the scraping rod contacts the travel switch, the linear driving mechanism runs reversely, so that the output end of the linear driving mechanism reciprocates up and down, and the scraping rod reciprocates up and down.
Further, a third water inlet is formed in the tangential direction of the cyclone sand remover, and the third water inlet is arranged above the first water inlet.
The beneficial effects of adopting above-mentioned technical scheme are: a third water inlet is arranged in the tangential direction of the cyclone sand remover and is used for cleaning the cyclone sand remover; when the cyclone sand remover needs to be cleaned, water with pressure is injected from the third water inlet, so that water flow moves rotationally along the inner wall of the cyclone sand remover, and sand attached to the inner wall of the cyclone sand remover is washed out; and the third water inlet is arranged above the first water inlet, so that the third water inlet is prevented from influencing the rotational flow movement of the solid-liquid-gas three-phase mixture.
Further, a plurality of packing plates are vertically arranged in the middle of the inner cavity of the gas-liquid separator, and a plurality of through holes facing the packing plates are formed in one end of the second water inlet; the first air delivery port is provided with a mist catcher.
The beneficial effects of adopting above-mentioned technical scheme are: the middle part of the inner cavity of the gas-liquid separator is vertically provided with a plurality of filler plates, and the first gas transmission port is provided with a mist catcher, so that the gas-liquid separation efficiency is improved; one end of the second water inlet is provided with a plurality of through holes facing the packing plate, so that the liquid-gas two-phase mixture coming out of the second water inlet moves or flows towards the packing plate, and the liquid-gas two-phase mixture is filled and separated as soon as possible, and the gas-liquid separation efficiency is improved.
Further, the inclination angles of the through holes are sequentially increased from bottom to top.
The beneficial effects of adopting above-mentioned technical scheme are: the inclination angles of the through holes are sequentially increased from bottom to top, so that the liquid-gas two-phase mixture from the second water inlet moves towards different parts of the packing plate, different parts of the packing plate work simultaneously, and the gas-liquid separation efficiency is improved.
Further, one end of the gas-liquid separator is provided with a liquid level transmitter, one end of the gas-liquid separator, which is far away from the second water inlet, is provided with a second gas transmission port, the second gas transmission port is communicated with a third flow transmitter through a first electromagnetic valve, the third flow transmitter is communicated with an output pipe, and the first electromagnetic valve and the liquid level transmitter are electrically connected with a second controller; a second electromagnetic valve is arranged between the third flow transmitter and the output pipe, and a fifth valve is arranged between the third flow transmitter and the second gas transmission port; the outlets of the first back flushing water pipes are respectively arranged at two ends of the gas-liquid separator, and a weir plate is arranged at one end of the gas-liquid separator, which is close to the second gas transmission port.
The beneficial effects of adopting above-mentioned technical scheme are: the liquid level transmitter senses the liquid level of the gas-liquid separator, when the liquid level is lower than the weir plate, the controller opens the first electromagnetic valve, and the separated gas is output from the second gas delivery port and is measured by the third flow transmitter; when the liquid level is higher than the weir plate, immediately closing the first electromagnetic valve; the outlets of the first back flushing water pipes are respectively arranged at two ends of the gas-liquid separator, so that back flushing water flows to the two ends of the gas-liquid separator, liquid phase separated by the back flushing water flows to the liquid outlet, thereby cleaning the gas-liquid separator, and the weir plate prevents the liquid phase or the back flushing water from entering the second gas delivery port.
Further, the lower cylinder body is provided with a first inner cavity for communicating the sand discharge port and a second inner cavity for communicating the liquid discharge port, and a separation valve is arranged between the first inner cavity and the second inner cavity; the first inner cavity is provided with the clearance mouth far away from the one end of separating valve, and the export setting of second back flush water pipe is in the one end of separating valve far away from in the second inner cavity.
The beneficial effects of adopting above-mentioned technical scheme are: the first inner cavity collects sand falling from the sand discharge port, and the second inner cavity collects separated liquid phase; when the gas-liquid separator performs gas-liquid separation, the separation valve is closed, so that sand is prevented from entering the gas-liquid separator from the second inner cavity; and if and only when cleaning, opening the separation valve, and discharging backwash water through the second backwash water pipe, wherein the backwash water drives liquid in the second inner cavity and sand in the first inner cavity, and is discharged from the cleaning port.
Further, a third electromagnetic valve and a fourth electromagnetic valve are respectively arranged between the first flow transmitter and the output pipe and between the second flow transmitter and the output pipe; a sixth valve and a seventh valve are respectively arranged between the first flow transmitter and the first gas transmission port and between the second flow transmitter and the first gas transmission port.
The beneficial effects of adopting above-mentioned technical scheme are: a third electromagnetic valve and a fourth electromagnetic valve are respectively arranged between the first flow transducer and the output pipe and between the second flow transducer and the output pipe; and a sixth valve and a seventh valve are respectively arranged between the first flow transmitter and the first gas transmission port and between the second flow transmitter and the first gas transmission port, so that the gas output pipeline and the flow transmitter can be switched conveniently.
The beneficial effects of the invention are as follows:
1. integrates the functions of high-efficiency cyclone sand removal, gas-liquid separation metering, sand discharge, back flushing and the like;
2. the cyclone sand remover is provided with a plurality of cyclone sand removers, can remove sand efficiently under different gas well working conditions, can ensure continuous sand removal, and does not influence the productivity of a gas well;
3. the measuring ranges of the first flow transmitter and the second flow transmitter are different, the gases with different flow rates are measured respectively, and the measuring precision is improved on the basis of ensuring the measurement;
4. when the gas well does not produce sand, the liquid-gas two-phase mixture can be directly input into the gas-liquid separator through the input pipe to carry out gas-liquid separation, so that the treatment procedures are reduced, and the productivity and the production efficiency are improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a cyclone separator according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial enlarged view at B in FIG. 2;
FIG. 5 is a schematic diagram of a gas-liquid separator according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at C;
FIG. 7 is a schematic view of a cyclone separator according to another embodiment of the present invention;
FIG. 8 is a schematic view of an installation of a cyclone separator in accordance with another embodiment of the present invention;
wherein 1, input pipe, 2, first valve, 3, third valve, 4, cyclone desander, 401, first water inlet, 402, hemisphere, 403, overflow port, 404, third water inlet, 405, filter screen, 406, linear driving mechanism, 407, sand discharge port, 408, float, 409, roller, 410, slide block, 411, scraping rod, 412, second rotary groove, 413, circular block, 414, travel switch, 415, round steel pin, 416, pressing piece, 417, outer shell, 5, second valve, 6, gas-liquid separator, 601, second water inlet, 602, filler plate, 603, first gas transmission port, 604, a second gas delivery port, 605, a weir plate, 606, a liquid outlet port, 607, a through hole, 7, a mist catcher, 8, a sixth valve, 9, a second flow transmitter, 10, a first flow transmitter, 11, a third electromagnetic valve, 12, a fourth electromagnetic valve, 13, an output pipe, 14, a second electromagnetic valve, 15, a third flow transmitter, 16, a first electromagnetic valve, 17, a liquid level transmitter, 18, a seventh valve, 19, a lower cylinder, 20, a first backwash water pipe, 21, a second backwash water pipe, 22, a second inner cavity, 23, a separation valve, 24, a fourth valve, 25, a first inner cavity, 26 and a cleaning port.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
As shown in figure 1, the high-efficiency sand removal separation metering integrated sledge adapting to variable working conditions comprises a gas-liquid separator 6, a plurality of cyclone sand removers 4, a lower cylinder 19 and an input pipe 1 for inputting a solid-liquid-gas three-phase mixture;
the cyclone sand remover 4 is provided with a first water inlet 401 for communicating with the input pipe 1, an overflow port 403 for communicating with the air-liquid separator 6 and a sand discharge port 407 for communicating with one end of the lower cylinder 19, and the sand discharge port 407 is provided with a cleaning device;
the gas-liquid separator 6 is provided with a first gas transmission port 603, a second water inlet 601 for communicating the input pipe 1 and the overflow port 403, and a liquid outlet 606 for communicating the other end of the lower cylinder 19, wherein the first gas transmission port 603 is respectively communicated with a first flow transmitter 10 and a second flow transmitter 9, the first flow transmitter 10 and the second flow transmitter 9 are respectively communicated with the output pipe 13, the measuring ranges of the first flow transmitter 10 and the second flow transmitter 9 are different, and the measuring ranges of the first flow transmitter 10 and the second flow transmitter 9 are one large and one small;
a first valve 2, a second valve 5, a third valve 3 and a fourth valve 24 are respectively arranged between the input pipe 1 and the first water inlet 401, between the input pipe 1 and the second water inlet 601, between the overflow port 403 and the second water inlet 601, and between the sand discharge port 407 and the lower cylinder 19;
a first back flushing water pipe 20 and a second back flushing water pipe 21 are respectively arranged in the gas-liquid separator 6 and the lower cylinder 19.
The cyclone sand remover 4 is used for separating sand from a solid-liquid-gas three-phase mixture, wherein the solid-liquid-gas three-phase mixture enters the cyclone sand remover 4 from a first water inlet 401 and separates the sand from the solid-liquid-gas three-phase mixture, the separated sand is discharged from a sand discharge port 407, and the rest of the liquid-gas two-phase mixture is discharged from an overflow port 403; the gas-liquid separator 6 is used for separating the liquid-gas two-phase mixture into a liquid phase and a gas phase, wherein the liquid-gas two-phase mixture enters the gas-liquid separator 6 from the second water inlet 601 and separates the gas phase from the liquid-gas two-phase mixture, the separated liquid phase is discharged from the liquid outlet 606, and the gas phase is discharged from the first gas outlet 603; the lower cylinder 19 is used for collecting sand discharged from the sand discharge port 407 and liquid phase discharged from the liquid discharge port 606;
the cyclone sand remover 4 is provided with a plurality of cyclone sand removers, and can remove sand efficiently under different gas well working conditions; when the gas well produces less, a small amount of cyclone sand remover 4 can be opened; when the gas well produces more, more cyclone sand removers 4 can be opened;
in addition, the cyclone sand removers 4 are arranged in a plurality, so that continuous sand removal can be ensured, and the productivity of a gas well is not influenced; when more sand is accumulated in the sand discharge port 407 of the cyclone sand remover 4 in operation, the cyclone sand remover 4 can be closed, and the other cyclone sand remover 4 can be opened to remove sand;
the input pipe 1 is communicated with the second water inlet 601, when the gas well does not produce sand, the gas-liquid two-phase mixture can be directly input into the gas-liquid separator 6 through the input pipe 1 for gas-liquid separation, so that the treatment procedures are reduced, and the productivity and the production efficiency are improved; at this time, the first valve 2 and the third valve 3 are closed, and the second valve 5 and the fourth valve 24 are opened; when the cyclone sand remover 4 works, the first valve 2 and the third valve 3 are opened, and the second valve 5 and the fourth valve 24 are closed;
the measuring ranges of the first flow transmitter 10 and the second flow transmitter 9 are different, and the gases with different flow rates are measured respectively; when the gas flow is large, a flow transmitter with a large measurement range is used for measurement; when the gas flow is smaller, a flow transmitter with a smaller measuring range is used for measuring; therefore, on the basis of guaranteeing measurement, the metering precision is improved.
The sand discharge port 407 is provided with a cleaning device for cleaning the sand discharge port 407 to prevent sand from blocking the sand discharge port 407; the first backwashing water pipe 20 and the second backwashing water pipe 21 respectively wash the gas-liquid separator 6 and the lower cylinder 19, which is beneficial to cleaning the gas-liquid separator 6 and the lower cylinder 19;
in addition, valves may be provided between the first transfer port 603 and the output pipe 13, and between the second transfer port 604 and the output pipe 13.
As an alternative embodiment, as shown in fig. 2, a plurality of raised hemispheres 402 are uniformly arranged on the inner wall of the cyclone sand remover 4, so that the contact area between the inner wall and the solid-liquid-gas three-phase mixture is increased, and when the solid-liquid-gas three-phase mixture rotates along the inner wall, a part of sand can be attached to the raised hemispheres 402, so that the separation efficiency of the sand is improved;
as shown in fig. 3, the lower end of the overflow port 403 is slidably provided with a filter screen 405, and a float 408 is provided on the filter screen 405; the filter screen 405 is used for filtering fine sand, so that the fine sand is prevented from entering the overflow port 403; however, since there is a possibility that fine sand may block the screen 405, the screen 405 is slidably disposed on the overflow port 403, and a float 408 is disposed on the screen 405; when sand is not attached to the filter screen 405, the filter screen 405 is slightly floated upwards under the influence of the float 408, and when sand is attached to the filter screen 405, the filter screen 405 is sunk downwards under the influence of gravity, so that the sand on the filter screen 405 is partially dropped off, and the filter screen 405 starts to float upwards again; the up-and-down reciprocating motion of the filter screen 405 forms vibration, so that sand attached to the filter screen 405 falls off, the filter screen 405 is prevented from being blocked by fine sand, and the normal operation of the cyclone sand remover 4 is ensured.
As an alternative embodiment, as shown in fig. 4, the cleaning device includes a plurality of linear driving mechanisms 406 uniformly arranged along the circumferential direction of the sand discharge port 407, the linear driving mechanisms 406 may be hydraulic cylinders, the output end of each linear driving mechanism 406 is fixedly connected with a sliding block 410, the moving direction of the sliding blocks 410 is the same as the height direction of the sand discharge port 407, and the sliding blocks 410 are uniformly provided with a plurality of groups of push-pull components along the moving direction;
each group of push-pull components comprises two groups of rollers 409 hinged on the sliding block 410, a scraping rod 411 is arranged between the two groups of rollers 409, the middle part of the scraping rod 411 is hinged on the sand discharge port 407, and one end of the scraping rod 411 away from the rollers 409 extends into the sand discharge port 407.
The linear driving mechanism 406 drives the sliding block 410 to move, so that the roller 409 on the sliding block 410 pushes or pulls the scraping rod 411 to rotate around the hinging point on the sand discharge port 407; after the cyclone sand remover 4 separates sand, the sand accumulated at the sand discharge port 407 is easy to block due to hardening, and the sand discharge port 407 is blocked by the sand discharge port, and the plurality of linear driving mechanisms 406 are simultaneously driven, so that the plurality of scraping rods 411 simultaneously scrape the sand close to the side wall of the sand discharge port 407, thereby breaking the hardening state of the sand and causing the sand to naturally fall under the influence of gravity; in addition, a plurality of groups of push-pull components are uniformly arranged on the sliding block 410 along the moving direction, so that the scraping rods 411 with different heights scrape sand with different heights, and the anti-blocking effect is ensured.
As an alternative embodiment, the middle part of the scraping rod 411 is a round block 413, the sand discharge port 407 is provided with a first rotating groove matched with the round block 413, and both ends of the first rotating groove are provided with a second rotating groove 412 for providing a rotating space, so that the scraping rod 411 can smoothly rotate, and a gap is not generated between the middle part of the scraping rod 411 and the sand discharge port 407 during rotation, thereby avoiding the liquid in the cyclone sand remover 4 from flowing out of the place; to ensure tightness between the middle of the scraper 411 and the sand discharge port 407, a sealing ring may be provided between the circular block 413 and the first rotating groove.
The travel switch 414 is arranged on two side walls of the second rotating groove 412, and the travel switch 414 and the linear driving mechanism 406 are electrically connected with the first controller, so that the automation degree is improved, and the manual control is reduced; wherein, the first controller can be selected from a PCB board carrying a C51 singlechip; when the scraping rod 411 contacts the travel switch 414, the linear driving mechanism 406 is reversely operated, so that the output end of the linear driving mechanism 406 reciprocates up and down, and the scraping rod 411 reciprocates up and down.
As an alternative embodiment, a third water inlet 404 is arranged in the tangential direction of the cyclone sand remover 4 and is used for cleaning the cyclone sand remover 4; when the cyclone sand remover 4 needs to be cleaned, water with pressure is injected from the third water inlet 404, so that water flow moves rotationally along the inner wall of the cyclone sand remover 4, and sand attached to the inner wall of the cyclone sand remover 4 is washed out; the third water inlet 404 is arranged above the first water inlet 401, so that the third water inlet 404 is prevented from influencing the rotational flow motion of the mixture of solid, liquid and gas.
As an alternative embodiment, as shown in fig. 5 and 6, a plurality of filler plates 602 are vertically arranged in the middle of the inner cavity of the gas-liquid separator 6, and the mist catcher 7 is arranged on the first gas transmission port 603, so that the gas-liquid separation efficiency is improved; one end of the second water inlet 601 is provided with a plurality of through holes 607 facing the packing plate 602, so that the liquid-gas two-phase mixture coming out of the second water inlet 601 moves or flows towards the packing plate 602, and the liquid-gas two-phase mixture is filled and separated as soon as possible, and the gas-liquid separation efficiency is improved.
As an alternative embodiment, the inclination angles of the plurality of through holes 607 are sequentially increased from bottom to top, so that the liquid-gas two-phase mixture coming out of the second water inlet 601 moves towards different parts of the packing plate 602, different parts of the packing plate 602 work simultaneously, and the gas-liquid separation efficiency is improved.
As an alternative embodiment, a liquid level transmitter 17 is arranged at one end of the gas-liquid separator 6, a second air delivery port 604 is arranged at one end, far away from the second water inlet 601, of the gas-liquid separator 6, the second air delivery port 604 is communicated with a third flow transmitter 15 through a first electromagnetic valve 16, the third flow transmitter 15 is communicated with an output pipe 13, the first electromagnetic valve 16 and the liquid level transmitter 17 are electrically connected with a second controller, and the second controller can be a PCB board carrying a C51 singlechip; a second electromagnetic valve 14 is arranged between the third flow transmitter 15 and the output pipe 13, and a fifth valve is arranged between the third flow transmitter 15 and the second gas transmission port 604; the outlets of the first backwash water pipes 20 are respectively arranged at two ends of the gas-liquid separator 6, and a weir plate 605 is arranged at one end of the gas-liquid separator 6 close to the second gas transmission port 604.
The liquid level transmitter 17 senses the liquid level of the gas-liquid separator 6, and when the liquid level is lower than the weir plate 605, the controller opens the first electromagnetic valve 16, outputs the separated gas from the second gas delivery port 604 and measures the gas through the third flow transmitter 15; when the liquid level is above the slice 605, the first solenoid valve 16 is immediately closed; outlets of the first backwash water pipes 20 are respectively arranged at two ends of the gas-liquid separator 6, so that backwash water flows to the two ends of the gas-liquid separator 6, and liquid phase separated by backwash water flows to the liquid discharge port 606, thereby cleaning the gas-liquid separator 6, and the weir plate 605 prevents liquid phase or backwash water from entering the second gas delivery port 604.
As an alternative embodiment, the lower cylinder 19 is provided with a first inner cavity 25 for communicating with the sand discharge port 407 and a second inner cavity 22 for communicating with the liquid discharge port 606, and a partition valve 23 is arranged between the first inner cavity 25 and the second inner cavity 22; the end of the first inner cavity 25, which is far away from the partition valve 23, is provided with a cleaning port 26, and the outlet of the second backwash water pipe 21 is provided at the end of the second inner cavity 22, which is far away from the partition valve 23.
The first chamber 25 collects sand falling from the sand discharge port 407, and the second chamber 22 collects separated liquid phase; when the gas-liquid separator 6 performs gas-liquid separation, the separation valve 23 is closed, so that sand is prevented from entering the gas-liquid separator 6 from the second inner cavity 22; if and only if cleaning, the partition valve 23 is opened and backwash water is discharged through the second backwash water pipe 21, the backwash water entrains the liquid in the second inner chamber 22 and the sand in the first inner chamber 25 and is discharged from the cleaning port 26.
As an alternative embodiment, a third electromagnetic valve 11 and a fourth electromagnetic valve 12 are respectively arranged between the first flow transmitter 10 and the output pipe 13 and between the second flow transmitter 9 and the output pipe 13; a sixth valve 8 and a seventh valve 18 are respectively arranged between the first flow transmitter 10 and the first gas transmission port 603 and between the second flow transmitter 9 and the first gas transmission port 603, so that the gas output pipeline and the flow transmitter can be switched conveniently.
As shown in fig. 7 and 8, in another embodiment of the cyclone sand remover 4 in the present invention, an overflow port 403 is fixed at the upper end of the cyclone sand remover 4 through a round steel pin 415, a sand discharge port 407 is arranged at the lower end of the cyclone sand remover 4, and a first water inlet 401 is arranged in the tangential direction of the cyclone sand remover 4; the cyclone sand remover 4 is disposed in the outer housing 417, and the cyclone sand remover 4 is fixed in the outer housing 417 by the pressing member 416; in addition, the outer housing 417 and the pressing member 416 are respectively provided with passages communicating with the first water inlet 401 and the overflow port 403, and both the passages and the sand discharge port 407 communicate with an external pipe through a nonstandard flange.
Claims (9)
1. The utility model provides a high-efficient degritting separation measurement integration sledge that adapts to variable operating mode which characterized in that includes gas-liquid separator (6), a plurality of whirl degritting ware (4), lower barrel (19) and is used for input solid-liquid-gas three-phase mixture's input tube (1);
the cyclone sand remover (4) is provided with a first water inlet (401) for communicating an input pipe (1), an overflow port (403) for communicating a gas-liquid separator (6) and a sand discharge port (407) for communicating one end of a lower cylinder (19), and the sand discharge port (407) is provided with a cleaning device;
the gas-liquid separator (6) is provided with a first gas transmission port (603), a second water inlet (601) used for communicating an input pipe (1) and an overflow port (403), and a liquid outlet (606) used for communicating the other end of the lower cylinder (19), wherein the first gas transmission port (603) is respectively communicated with a first flow transmitter (10) and a second flow transmitter (9), the first flow transmitter (10) and the second flow transmitter (9) are both communicated with an output pipe (13), and the measuring ranges of the first flow transmitter (10) and the second flow transmitter (9) are different;
a first valve (2), a second valve (5), a third valve (3) and a fourth valve (24) are respectively arranged between the input pipe (1) and the first water inlet (401), between the input pipe (1) and the second water inlet (601), between the overflow port (403) and the second water inlet (601) and between the sand discharge port (407) and the lower cylinder (19);
a first backwash water pipe (20) and a second backwash water pipe (21) are respectively arranged in the gas-liquid separator (6) and the lower cylinder (19);
the cleaning device comprises a plurality of linear driving mechanisms (406) which are uniformly arranged along the circumferential direction of the sand discharge opening (407), wherein the output end of each linear driving mechanism (406) is fixedly connected with a sliding block (410), the moving direction of each sliding block (410) is the same as the height direction of the sand discharge opening (407), and the sliding blocks (410) are uniformly provided with a plurality of groups of push-pull assemblies along the moving direction;
the push-pull assembly comprises two groups of rollers (409) hinged to the sliding block (410), a scraping rod (411) is arranged between the two groups of rollers (409), the middle part of the scraping rod (411) is hinged to the sand discharge opening (407), and one end of the scraping rod (411), far away from the rollers (409), extends into the sand discharge opening (407).
2. The variable-working-condition-adaptive efficient sand removal, separation and metering integrated sledge according to claim 1, wherein a plurality of protruding hemispheres (402) are uniformly arranged on the inner wall of the cyclone sand remover (4), a filter screen (405) is slidably arranged at the lower end of the overflow port (403), and a floater (408) is arranged on the filter screen (405).
3. The variable-working-condition-adaptive efficient sand removal, separation and metering integrated sledge according to claim 1, wherein the middle part of the scraping rod (411) is a round block (413), a first rotating groove matched with the round block (413) is arranged on the sand discharge port (407), second rotating grooves (412) for providing rotating space are arranged at two ends of the first rotating groove, travel switches (414) are arranged on two side walls of the second rotating groove (412), and the travel switches (414) and the linear driving mechanism (406) are electrically connected with a first controller.
4. The variable-working-condition-adaptive efficient sand removal, separation and metering integrated sledge according to claim 1, wherein a third water inlet (404) is arranged in the tangential direction of the cyclone sand remover (4), and the third water inlet (404) is arranged above the first water inlet (401).
5. The variable-working-condition-adaptive efficient sand removal, separation and metering integrated sledge according to claim 1, wherein a plurality of packing plates (602) are vertically arranged in the middle of an inner cavity of the gas-liquid separator (6), and one end of the second water inlet (601) is provided with a plurality of through holes (607) facing the packing plates (602); the first air conveying port (603) is provided with a mist catcher (7).
6. The variable-working-condition-adaptive efficient sand removal, separation and metering integrated sledge according to claim 5, wherein the inclination angles of the through holes (607) are sequentially increased from bottom to top.
7. The variable-working-condition-adaptive efficient sand removal, separation and metering integrated sledge according to claim 1, wherein a liquid level transmitter (17) is arranged at one end of the gas-liquid separator (6), a second gas transmission port (604) is arranged at one end, far away from the second water inlet (601), of the gas-liquid separator (6), the second gas transmission port (604) is communicated with a third flow transmitter (15) through a first electromagnetic valve (16), the third flow transmitter (15) is communicated with an output pipe (13), and the first electromagnetic valve (16) and the liquid level transmitter (17) are electrically connected with a second controller; a second electromagnetic valve (14) is arranged between the third flow transmitter (15) and the output pipe (13), and a fifth valve is arranged between the third flow transmitter (15) and the second air conveying port (604); the outlets of the first backwashing water pipes (20) are respectively arranged at two ends of the gas-liquid separator (6), and a weir plate (605) is arranged at one end, close to the second gas transmission port (604), of the gas-liquid separator (6).
8. The variable-working-condition-adapted high-efficiency sand removal, separation and metering integrated sledge according to claim 1, wherein the lower cylinder (19) is provided with a first inner cavity (25) for communicating with a sand discharge port (407) and a second inner cavity (22) for communicating with a liquid discharge port (606), and a separation valve (23) is arranged between the first inner cavity (25) and the second inner cavity (22); one end of the first inner cavity (25) far away from the separation valve (23) is provided with a cleaning port (26), and an outlet of the second backwash water pipe (21) is arranged at one end of the second inner cavity (22) far away from the separation valve (23).
9. The variable-working-condition-adaptive efficient sand removal separation metering integrated sledge according to claim 1 is characterized in that a third electromagnetic valve (11) and a fourth electromagnetic valve (12) are respectively arranged between the first flow transmitter (10) and the output pipe (13) and between the second flow transmitter (9) and the output pipe (13); a sixth valve (8) and a seventh valve (18) are respectively arranged between the first flow transmitter (10) and the first air transmission port (603) and between the second flow transmitter (9) and the first air transmission port (603).
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| CN202210472809.9A CN114737945B (en) | 2022-04-29 | 2022-04-29 | High-efficient degritting separation measurement integration sledge of adaptation variable operating mode |
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| CN116658147A (en) * | 2023-07-28 | 2023-08-29 | 四川凌耘建科技有限公司 | Built-in inclined plate sand removal and separation integrated device and sand removal and separation method |
| CN116988775B (en) * | 2023-09-26 | 2024-01-09 | 中海油能源发展股份有限公司采油服务分公司 | Solid, liquid and gas three-phase metering skid-mounted device and metering method for well site of gas well |
| CN117643744B (en) * | 2024-01-30 | 2024-04-16 | 四川凌耘建科技有限公司 | Efficient dehydration method and related device for natural gas triethylene glycol |
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