CN218871532U - Sand remover with multiple connecting pipelines - Google Patents

Abstract

The utility model discloses a desander with a plurality of connecting pipelines, which comprises a desander, wherein the desander is arranged on a desander pry, a produced gas inlet is arranged on the right side of the upper part of the desander, a produced gas outlet is arranged on the left side of the middle part of the desander, and a produced gas inlet and outlet pipeline is connected between the produced gas inlet and the produced gas outlet of the desander; the lower part of the desander is provided with a sand washing port, the sand washing port is positioned at the lower part between the produced gas inlet and the produced gas outlet, and the sand washing port of the desander is connected with a sand washing pipeline; the upper part of the sand remover is provided with a safety valve port, and a safety pipeline is connected to the safety valve port; the lower part of the desander is also provided with a sand discharge port and a sewage discharge port, the sand discharge port is connected with a sand discharge pipeline, the sewage discharge port is provided with a sewage discharge pipeline, and the sand discharge pipeline and the sewage discharge pipeline are connected in parallel. This device adopts the cooperation of desander and multiple pipeline, gets rid of the solid particle in the fluid, and dispersion desander panel internal stress is concentrated, reduces the sediment situation of pressing from both sides, optimizes the sand discharge pipeline and then promotes the separation effect.

Description

Sand remover with multiple connecting pipelines

Technical Field

The utility model relates to a desander technical field especially indicates a desander with many connecting tube.

Background

The desander is manufactured according to the screening principle that solid particles in fluid rotate in the desander, integrates swirling flow and filtering, and realizes desanding, gas-liquid and solid-liquid separation in the field of natural gas exploitation. The liquid level of the desander is controlled and adjusted through an electric adjusting valve. The desander uses the safety valve to be installed on the tank body, and the spring type safety valve automatically bounces to release pressure if abnormal conditions occur. The sand remover is provided with a complete manifold system, the operation is easy, and the butt flanges of the inlets and outlets of all manifolds are integrally reinforced by using long high-neck flanges integrated with connecting pipes. The existing desander is easy to clamp slag on plates in the using process, so that the internal stress of the plates is concentrated, the desander is damaged, the separation effect is not ideal, and the service life of the desander is influenced.

SUMMERY OF THE UTILITY MODEL

To the not enough in the above-mentioned background art, the utility model provides a desander with many connecting tube, solved among the prior art desander and pressed from both sides the sediment and lead to that the panel internal stress is concentrated, the sand discharge pipeline easily damages the unsatisfactory problem of messenger's separation effect.

The technical scheme of the utility model is realized like this: a desander with a plurality of connecting pipelines comprises a desander, wherein the desander is arranged on a desander pry, a produced gas inlet is formed in the right side of the upper part of the desander, a produced gas outlet is formed in the left side of the middle part of the desander, and a produced gas inlet and outlet pipeline is connected between the produced gas inlet and the produced gas outlet of the desander; the lower part of the desander is provided with a sand washing port, the sand washing port is positioned at the lower part between the produced gas inlet and the produced gas outlet, and the sand washing port of the desander is connected with a sand washing pipeline; the upper part of the sand remover is provided with a safety valve port, and a safety pipeline is connected to the safety valve port; the lower part of the desander is also provided with a sand discharge port and a sewage discharge port, the sand discharge port is connected with a sand discharge pipeline, the sewage discharge port is provided with a sewage discharge pipeline, and the sand discharge pipeline is connected with the sewage discharge pipeline in parallel; the produced gas inlet and outlet pipeline, the sand washing pipeline, the sand discharging pipeline and the sewage discharging pipeline are all arranged on the sand remover skid, and the end parts of the produced gas inlet and outlet pipeline, the sand washing pipeline, the sand discharging pipeline and the sewage discharging pipeline are all arranged on the same horizontal line.

Furthermore, the produced gas inlet and outlet pipeline comprises a first connecting port and a second connecting port, the first connecting port is connected with the produced gas inlet, and the second connecting port is connected with the produced gas outlet; a first valve, a second valve and a third valve are arranged between the first connecting port and the second connecting port, the first valve is arranged at a produced gas inlet, the third valve is arranged at a produced gas outlet, the second valve is arranged between the first valve and the third valve, and the first valve, the second valve and the third valve are connected through pipelines to form a U-shaped safety pipeline structure.

Furthermore, the safety pipeline comprises a third connecting port connected with a safety valve port, a fourth valve, a stop valve, a sixth valve, a safety valve and a fifth valve are arranged on a pipeline where the third connecting port is located, the fourth valve, the stop valve, the sixth valve, the safety valve and the fifth valve are sequentially connected into a frame-shaped safety pipeline structure through pipelines, the fourth valve and the sixth valve are symmetrically arranged on two sides of the frame-shaped safety pipeline structure, the stop valves are arranged on the lower portion of the frame-shaped safety pipeline structure, and the fifth valve and the safety valve are located on the upper portion of the frame-shaped safety pipeline structure.

Furthermore, the sand discharge pipeline comprises a fourth connecting port, a fifth connecting port and a sand discharge and sand outlet, the fourth connecting port is connected with the sand discharge port, the fifth connecting port is connected with the sewage discharge pipeline, a seventh valve, an eighth valve and a first sewage discharge valve are sequentially arranged between the fourth connecting port and the fifth connecting port, the sand discharge and sand outlet is arranged between the seventh valve and the eighth valve, and a first ball valve is arranged on a pipeline where the sand discharge and sand outlet is located.

Furthermore, the sewage pipeline comprises a sixth connecting port and a seventh connecting port, the sixth connecting port is connected with the sand washing port, the seventh connecting port is connected with the fifth connecting port, two pipelines which are arranged in parallel are arranged between the sixth connecting port and the seventh connecting port, a ninth valve, an electric ball valve, an electric adjusting valve and a second sewage valve are sequentially arranged on the upper pipeline, and a tenth valve and a third sewage valve are sequentially arranged on the lower pipeline.

Furthermore, the sand washing pipeline comprises an eighth connecting port and a sand washing and discharging port, the eighth connecting port is connected with the sand washing and discharging port, and an eleventh valve and a second ball valve are arranged between the eighth connecting port and the sand washing and discharging port.

Furthermore, the sand remover comprises a cylinder body, the lower part of the cylinder body is provided with an oval end enclosure and a supporting seat, a sand discharge port is positioned at the lower part of the oval end enclosure, and the upper part of the cylinder body is provided with a quick-opening blind plate; a screen cylinder is arranged in the cylinder body and is connected to the inside of the cylinder body through a screen cylinder fixing structure, and a seamless elbow is arranged at the lower part of the screen cylinder and is connected with the produced gas outlet; a flow guide structure is arranged in the cylinder body and is positioned below the produced gas outlet; the barrel is also provided with a tuning fork liquid level switch port, a hand hole and a liquid level meter port. An O-shaped ring matched with the cylinder body is arranged in the quick-opening blind plate.

Further, the screen drum comprises a screen drum body, the lower portion of the screen drum body is provided with a tray, the upper portion of the screen drum body is connected with a fixing plate, and the fixing plate is connected with a connecting plate arranged inside the screen drum body through a locking piece. The lower part of the screen cylinder body is provided with a sealing rubber ring matched with the tray.

The utility model has the advantages that: this device adopts the cooperation of desander and multiple pipeline, gets rid of the solid particle in the fluid, and dispersion desander panel internal stress is concentrated, reduces the sediment situation of pressing from both sides, optimizes the sand discharge pipeline and then promotes the separation effect. The sewage discharge pipeline increases the safe operation of equipment; the solid medium of the sand discharge pipeline is discharged through the quick connector, so that the influence on the cleanliness of the product caused by the increase of the sand content is effectively avoided; the safety pipeline effectively avoids the safety problem caused by the failure of the safety valve; the medium in the produced gas inlet and outlet pipelines can directly go to the next process without passing through a desander, so that the damage to the desander is effectively avoided; and flushing the inside of the sand flushing pipeline equipment. The sand remover adopts a plurality of valves which are used together, so that the emergency situation in the operation process can be effectively solved, the safety of equipment is improved, and meanwhile, semi-intelligent control can be realized.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic diagram of the connection of the safety line;

FIG. 5 is a schematic diagram of the connection of the production gas inlet and outlet lines;

FIG. 6 is a schematic view of the connection of the waste line;

FIG. 7 is a schematic view of the connection of the sand discharge line;

FIG. 8 is a schematic diagram of the connection of the sand wash lines;

FIG. 9 is a schematic view of the structure of the desander;

FIG. 10 isbase:Sub>A schematic view of the structure A-A of FIG. 9;

FIG. 11 is a side view of the desander;

FIG. 12 is a schematic structural view of a screen cylinder;

fig. 13 is a top view of fig. 12.

In the figure: 1. safety pipeline 11, connecting ports three, 12, valves four, 13, stop valves 14, valves six, 15, safety valves 16, valves five, 2, desander 21, elliptical head 22, cylinder 23, screen cylinder 231, screen cylinder 232, sealing rubber ring 233, tray 234, connecting plate 235, fixing plate 236, locking piece 24, diversion device 25, screen cylinder fixing device 26, quick-opening blind plate 27, supporting seat 28, seamless elbow 29, nameplate 3, production gas inlet and outlet pipeline 31, connecting port one, 32, valve one, 33, valve three, 4, sand flushing pipeline 41, eight, 42, sand flushing outlet 43, valve eleven, 44 and second ball valve, 51, a second connecting port, 52, a second valve, 6, a sand discharge pipeline, 61, a fourth connecting port, 62, a fifth connecting port, 63, a sand discharge and outlet port, 64, a seventh valve, 65, an eighth valve, 66, a first sewage discharge valve, 67, a first ball valve, 7, a sewage discharge pipeline, 71, a sixth connecting port, 72, a seventh connecting port, 73, a ninth valve, 74, an electric ball valve, 75, an electric regulating valve, 76, a second sewage discharge valve, 77, a tenth valve, 78, a third sewage discharge valve, 8, a sand remover lever, 2-1, a safety valve port, 2-2, a collected gas inlet, 2-3, a collected gas outlet, 2-4, a sand flushing port, 2-5, a sand discharge port, 2-6, a sewage discharge port, 2-7, a hand hole, 2-8, a tuning fork liquid level switch port, 2-9 and a liquid level meter port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1 to 3, in embodiment 1, a desander with a plurality of connecting pipelines comprises a desander 2, the desander 2 is mounted on a desander skid 8, a produced gas inlet 2-2 is arranged at the upper part of the desander 2, and the produced gas inlet 2-2 is a passage for fluid to enter the desander. The middle part of the desander 22 is provided with a produced gas outlet 2-3, the produced gas is discharged from the produced gas outlet 2-3, and a produced gas inlet and outlet pipeline 3 is connected between the produced gas inlet 2-2 and the produced gas outlet 2-3; the lower part of the desander 2 is provided with a sand washing port 2-4, and the sand washing port 2-4 is an inlet for washing sand stored in the desander. The sand washing ports 2-4 are connected with a sand washing pipeline 4; the upper part of the desander 2 is provided with a safety valve port 2-1, and the safety valve port 2-1 is connected with a safety pipeline 1; the lower part of the desander 2 is also provided with a sand discharge port 2-5 and a sewage discharge port 2-6, the sand discharge port 2-5 is connected with a sand discharge pipeline 6, the sand discharge port 2-5 is used for discharging the particulate matter of the desander, the sewage discharge port 2-6 is provided with a sewage discharge pipeline 7, the liquid separated by the desander is discharged from the sewage discharge port 2-6, and the sand discharge pipeline 6 is connected with the sewage discharge pipeline 7 in parallel; the produced gas inlet and outlet pipeline 3, the sand washing pipeline 4, the sand discharge pipeline 6 and the sewage discharge pipeline 7 are all arranged on the sand remover skid 8, and the end parts of the produced gas inlet and outlet pipeline 3, the sand washing pipeline 4, the sand discharge pipeline 6 and the sewage discharge pipeline 7 are all arranged on the same horizontal line. The sand remover sled is mainly used for a wellhead front-edge device in the petroleum and petrochemical industry, the requirement on pipeline layout is very strict, when the sand remover sled is designed in a pipeline layout, the sand remover inlet, outlet, drain, sand flushing port and sand discharging port are uniformly distributed on one side of the sled seat, so that the input of raw materials is greatly saved while the well site pipelines are conveniently butted.

The concrete working principle of the desander is as follows: when the medium enters the equipment from the air inlet of the sand remover through the flow guide device under a certain pressure, strong rotary motion is generated, because of different densities of the sand and the liquid, the liquid with low density rises under the combined action of centrifugal force, centripetal force, buoyancy force and fluid drag force and is discharged from a sewage discharge outlet, meanwhile, the natural gas with low density is filtered by a screen cylinder and then is discharged from the outlet of the sand remover, and sand grains with high density are deposited at the bottom of the equipment and are discharged from a sand discharge outlet, so that the aim of removing the sand is fulfilled. 1. From the bearing capacity, the wall thickness of the sand remover designed by my department is 28mm, the bearing capacity is larger than 10MPa, namely the pressure of 100 kilograms through the software calculation of a pressure container, and meanwhile, the problems of stress concentration and slag inclusion in the plate are effectively solved because the annealed steel plate is selected as the material.

As shown in fig. 5, in embodiment 2, a desander with a plurality of connecting pipelines, a produced gas inlet/outlet pipeline 3 comprises a first connecting port 31 and a second connecting port 51, the first connecting port 31 is connected with a produced gas inlet 2-2, and the second connecting port 51 is connected with a produced gas outlet 2-3; a first valve 32, a second valve 33 and a third valve 52 are arranged between the first connecting port 31 and the second connecting port 51, the first valve 32 is arranged at a produced gas inlet 2-2, the third valve 33 is arranged at a produced gas outlet 2-3, the second valve 33 is arranged between the first valve 32 and the third valve 52, and the first valve 32, the second valve 33 and the third valve 52 are connected into a U-shaped safety pipeline structure through pipelines.

The use mode of the produced gas inlet and outlet pipeline 3 is as follows: when the equipment normally operates, the second valve 33 is in a closed state, the first valve 32 enters the third valve 52 and exits, the first valve 32 and the third valve 52 can be closed in emergency, the second valve 33 is opened, medium directly bypasses, the medium can directly bypass the next working procedure without passing through a desander, and the damage to the desander is effectively avoided. Differential pressure transmitters are arranged on the first connecting port 31 and the second connecting port 51, the blockage condition of the screen drum is judged by detecting the pressure change of the inlet and the outlet, and the screen drum is cleaned at a proper time, so that the production efficiency is greatly improved.

As shown in fig. 4, in embodiment 3, a desander with multiple connecting pipelines, a safety pipeline 1 includes a third connecting port 11 connected to a safety valve port 2-1, a fourth valve 12, a stop valve 13, a sixth valve 14, a safety valve 15, and a fifth valve 16 are disposed on a pipeline where the third connecting port 11 is located, the fourth valve 12, the stop valve 13, the sixth valve 14, the safety valve 15, and the fifth valve 16 are sequentially connected through pipelines to form a frame-shaped safety pipeline structure, the fourth valve 12 and the sixth valve 14 are symmetrically disposed on two sides of the frame-shaped safety pipeline structure, the stop valve 13 is disposed on a lower portion of the frame-shaped safety pipeline structure, and the fifth valve 16 and the safety valve 15 are disposed on an upper portion of the frame-shaped safety pipeline structure.

The safety pipeline 1 is used in the following way: when the equipment normally operates, the valve four 12 and the stop valve 13 are in a closed state, the valve six 14, the safety valve 15 and the valve five 16 are in an open state, and in an emergency or during maintenance of the safety valve, the valve five 16 and the valve six 14 can be closed while the valve four 12 and the stop valve 13 are opened, so that the safety problem caused by failure of the safety valve is effectively avoided.

As shown in fig. 7, in embodiment 4, the sand remover with a plurality of connecting pipelines comprises a sand discharge pipeline 6, a sand discharge pipeline 6 and a sand discharge outlet 63, wherein the sand discharge pipeline comprises a fourth connecting port 61, a fifth connecting port 62 and a sand discharge outlet 63, the fourth connecting port 61 is connected with the sand discharge ports 2-5, the fifth connecting port 62 is connected with the sewage discharge pipeline 7, a seventh valve 64, an eighth valve 65 and a first sewage discharge valve 66 are sequentially arranged between the fourth connecting port 61 and the fifth connecting port 62, the sand discharge outlet 63 is arranged between the seventh valve 64 and the eighth valve 66, and a first ball valve 67 is arranged on the pipeline where the sand discharge outlet 63 is arranged.

The sand discharge pipeline 6 has the following use modes: when the equipment is in normal operation, the process flow can be selected according to the solid-liquid content of the medium. When the medium liquid content is high, the first ball valve 67 can be closed, the valve seven 64, the valve eight 65 and the first blowdown valve 66 are opened, and the liquid is finally collected with a blowdown pipeline to enter a liquid treatment condition. When the solid (sand) content of the medium is high, the valve seven 64, the valve eight 65 and the first blowdown valve 66 can be closed, the solid medium is directly discharged from the first ball valve 67 through the quick connector, and the influence on the cleanliness of the product caused by the increase of the sand content is effectively avoided.

In embodiment 5, as shown in fig. 6, the desander with a plurality of connecting pipelines comprises a drain pipeline 7 and a sand removing pipeline, wherein the drain pipeline 7 comprises a connecting port six 71 and a connecting port seven 72, the connecting port six 71 is connected with sand washing ports 2-4, the connecting port seven 72 is connected with a connecting port five 62, two pipelines which are arranged in parallel are arranged between the connecting port six 71 and the connecting port seven 72, a valve nine 73, an electric ball valve 74, an electric regulating valve 75 and a second drain valve 76 are sequentially arranged on an upper pipeline, and a valve ten 77 and a third drain valve 78 are sequentially arranged on a lower pipeline.

The sewage pipeline 7 is used in the following mode: when the equipment normally runs, the third blowoff valve 78 and the valve ten 77 are in a closed state, the valve nine 73, the electric ball valve 74, the electric regulating valve 75 and the second blowoff valve 76 are in an open state, the front valve back pressure of the valve is regulated through the valve sleeve type blowoff valve during blowdown, the valve nine 73, the electric ball valve 74, the electric regulating valve 75 and the second blowoff valve 76 can be closed in emergency or during maintenance, the electric ball valve and the electric regulating valve are adopted, the blowoff process valve 2 is the valve 3, the electric ball valve is arranged at the front end of the electric regulating valve, when emergency occurs, the electric ball valve can be emergently cut off through power supply in 24VDC so as to protect the electric regulating valve from being damaged due to overlarge impact of pressure, the electric regulating valve can regulate the rear end pressure of the electric regulating valve through 4 to 20mA, HART protocol transmits signals to the central control room to regulate the rear end pressure of the electric regulating valve, more reasonable and safe discharge pressure is regulated to the rear end equipment, and the rear end equipment is protected. And the valve ten 77 and the third blowdown valve 78 are opened simultaneously, so that the safe operation of the equipment is greatly increased. The performance of the valve sleeve type blowoff valve is far superior to that of a common blowoff valve, and the performance is mainly shown in

When the bottom end of the valve clack leaves the sealing surface of the valve seat, the bottom end surface of the valve clack is close to the bottom edge of the groove of the cage-shaped sleeve, and the valve clack and the inner diameter of the cage-shaped sleeve form a seal. But not directly emptying and relieving pressure, thereby achieving the effect of relaxation. Valve sleeve type blowoff valve throttling state: the valve clack bottom carbonyl leaves the disk seat, further open, little throttle head department forms the one-level throttle, high-speed fluid directly flows into little valve clack after the pressure-relieving throttle, because valve barrel window edge is zui final throttle face, when the high pressure medium directly erodees the throttle passageway, the valve clack bottom produces the vortex because the medium is to changing, the direct erodeing of medium ground valve clack has been alleviated, thereby the direct erodeing of medium has also been avoided in the disk seat seal, simultaneously because the valve clack sealed face is conical, can sweep filth and impurity on the disk seat sealed face, the sealed face of protection, thereby the life of extension valve. The valve sleeve type blow-down valve is in a fully open state: when the valve clack is in a full-open state, the whole valve is in a full-emptying state, the resistance of fluid in the cold door is small, the emptying time is shortened, and the emptying effect of the valve is improved.

As shown in fig. 8, in the present embodiment, the sand wash line 4 includes a connection port eight 41 and a sand wash outlet 42, the connection port eight 41 is connected to the sand wash outlets 2 to 4, and a valve eleven 43 and a second ball valve 44 are provided between the connection port eight 41 and the sand wash outlet 42.

The sand washing pipeline 4 is used in the following mode: when the equipment runs normally, the valve eleven 43 and the second ball valve 44 are in a closed state, and when sand setting of the equipment seriously needs flushing, the valve eleven 43 and the second ball valve 44 are opened after the internal pressure of the equipment is completely released, so that the inside of the equipment is flushed.

As shown in fig. 9 to 11, in embodiment 6, the desander with multiple connecting pipelines comprises a cylinder 22, an elliptical head 21 and a support 27 are arranged at the lower part of the cylinder 22, sand discharge ports 2 to 5 are located at the lower part of the elliptical head 21, a quick-opening blind plate 26 is arranged at the upper part of the cylinder 22, and the three-flap clamp type quick-opening blind plate has a large meshing area, is high in safety and reliability, is simple to operate, and is more suitable for being installed and used on high-pressure large-caliber equipment. The safety interlocking mechanism is arranged, so that the safety and the reliability are fully ensured. The method is characterized in that: the product mainly comprises a blind plate cover, a cylinder body, a three-piece hoop, a safety interlocking mechanism, a rotating arm mechanism and an opening and closing mechanism. When a special spanner is used for rotating one end of the switch lead screw clockwise or anticlockwise, the three-piece hoop can be expanded or contracted, and therefore the purpose of quick opening and closing is achieved. 2. From the model selection of quick open blind board, adopt the quick open blind board of clamp type (KGMB), its structural style is comparatively similar with the combination of flange with the blind flange, has increased the structure of opening soon simultaneously, and its sealed combination is seal groove with O type circle, leans on the tight power compaction sealing washer that rises, and the sand grain is difficult to bore into the seal groove, examines the maintenance procedure more simple and convenient more effective simultaneously to reduce the frequency of industry owner's inspection maintenance, guarantee simultaneously that production lasts effectively going on.

The working principle is as follows: formation fluid enters the desander and first encounters the inlet diversion device, causing the momentum and direction of the fluid to change abruptly, gas to escape from the liquid and rise, and the liquid and sand sink to the lower portion of the vessel. The inlet of the desander is connected with a downstream data head or a heating furnace; the gas outlet of the desander is connected with the three-phase separator through a pipeline; the sand remover sewage discharge outlet is connected with the inlet of the sewage tank; the desander discharge outlet is piped to a drain. The sand washing and discharging openings are determined by actual working conditions on site.

In the embodiment, a screen cylinder 23 is arranged in the cylinder body 22, the screen cylinder 23 is connected inside the cylinder body 22 through a screen cylinder fixing structure 25, a seamless elbow 28 is arranged at the lower part of the screen cylinder 22, and the seamless elbow 28 is connected with the produced gas outlet 2-3; a flow guide structure 24 is arranged in the cylinder 22, the flow guide structure 24 is positioned below the produced gas outlet 2-3, the flow guide structure 24 is an arc-shaped folding baffle which is a structure for suddenly changing the direction and speed of a medium, and the flow guide device is mainly used for bearing the impact of the fluid and realizing the function of preventing the medium from directly impacting the inner wall of the desander by high-speed rotational flow; the inlet flow guide device adopts a flow guide device which is easier to change the medium for smooth transition, and the structure of the inlet flow guide device is a semicircular flow guide plane, so that the medium is effectively prevented from directly scouring the inner wall and the desanding cylinder. The cylinder 22 is also provided with a tuning fork liquid level switch port 2-8, a hand hole 2-7 and a liquid level meter port 2-9. The tuning fork liquid level switch port 2-8 is a switch for detecting the height of the liquid level in the desander, the hand hole 2-7 is a channel for entering the desander when the interior is checked and maintained, and the liquid level meter port 2-9 is externally connected with a liquid level meter. The quick-opening blind plate 26 is internally provided with an O-shaped ring matched with the cylinder 22.

The orientation of the tuning fork liquid level switch is the same as that of the sand discharge port, and the tuning fork liquid level switch is driven by the piezoelectric ceramics, so that the tuning fork body vibrates at a certain mechanical resonance frequency. When the liquid level sensor is contacted with the detected liquid, the resonance frequency of the fork body can be obviously reduced, the change of the vibration frequency is directly reflected on an output signal of the piezoelectric detection device, the change of the vibration frequency is judged by the detection circuit, and a switching signal is output to judge the liquid level height, so that proper time is selected for pollution discharge. Principle of liquid level regulation: the liquid level is to be seen in the liquid level meter; the liquid level must be a real liquid level, i.e. the liquid level meter is ensured to be communicated with the container from top to bottom; typically the liquid level is set at 3/4 of the gauge. Carrying out field debugging and pressure testing, and carrying out clear water 1.1m high-speed harvest; pressure test plugs at the inlet of the sand remover and the gas and liquid outlets; and (4) testing the pressure to 12.25 MPa, stabilizing the pressure for 30 minutes, and judging that the leakage does not occur, if a leakage place exists, releasing the pressure, then rectifying, and then testing the pressure again. A sand remover is added: gently opening an upper diversion hole single-gate plate gate valve of a gas-liquid inlet and a valve on a gas pipeline; closely observing the rising condition of the liquid level through a liquid level meter; after the liquid level rises, opening the electric regulating valve; the electric control valve sets the liquid level position.

As shown in fig. 12 and 13, in this embodiment, the screen drum 23 is a wire-wound wedge-shaped screen, the separation and filtration precision is 0.1mm, and the produced gas enters the desander and then is discharged through the produced gas outlet by using the principle of gravity separation and using the screen drum to block solid particles exceeding 0.1mm from entering the screen drum. The winding screen drum has the characteristics that: wear resistance and corrosion resistance. The cross section of the mesh is trapezoidal. The upper part of the gap is narrow and the lower part is wide. The screen bar is formed by cold rolling stainless steel wires, the supporting strips are formed by welding automatic mineral screens, screen seams are uniform, welding quality is stable, the aperture ratio is high, the service life is long, and the screen bar has high strength, rigidity and bearing capacity. The screen drum comprises a screen drum body 231, a tray 233 is arranged at the lower part of the screen drum body 231, a fixing plate 235 is connected at the upper part of the screen drum body 231, and the fixing plate 235 is connected with a connecting plate 234 arranged inside the drum body 22 through a locking member 236. The lower part of the screen cylinder 231 is provided with a sealing rubber ring 232 which is matched with the tray 233. The screen cylinder is fixed by adopting a wire winding screen cylinder structure with a single-end closed and a single-end opened, wherein the closed end is arranged at the top of the desander, the open end is arranged at the bottom of the desander, and the open end arranged at the bottom is provided with a circular groove-shaped sealing surface, so that the sealing surface of the screen cylinder is effectively matched with the groove-shaped sealing surface, and the separation effect is greatly improved in the operation process of the desander.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a desander with many connecting line which characterized in that: the device comprises a desander (2), wherein the desander (2) is arranged on a desander skid (8), the upper part of the desander (2) is provided with a produced gas inlet (2-2), the middle part of the desander (2) is provided with a produced gas outlet (2-3), and a produced gas inlet and outlet pipeline (3) is connected between the produced gas inlet (2-2) and the produced gas outlet (2-3); a sand washing port (2-4) is arranged at the lower part of the desander (2), and a sand washing pipeline (4) is connected to the sand washing port (2-4); the upper part of the sand remover (2) is provided with a safety valve port (2-1), and the safety valve port (2-1) is connected with a safety pipeline (1); the lower part of the desander (2) is also provided with a sand discharge port (2-5) and a sewage discharge port (2-6), the sand discharge port (2-5) is connected with a sand discharge pipeline (6), the sewage discharge port (2-6) is provided with a sewage discharge pipeline (7), and the sand discharge pipeline (6) and the sewage discharge pipeline (7) are connected in parallel; the produced gas inlet and outlet pipeline (3), the sand washing pipeline (4), the sand discharge pipeline (6) and the sewage discharge pipeline (7) are all arranged on the sand remover skid (8), and the end parts of the produced gas inlet and outlet pipeline (3), the sand washing pipeline (4), the sand discharge pipeline (6) and the sewage discharge pipeline (7) are all arranged on the same horizontal line.

2. The desander with a plurality of connecting lines as claimed in claim 1, wherein: the produced gas inlet and outlet pipeline (3) comprises a first connecting port (31) and a second connecting port (51), the first connecting port (31) is connected with the produced gas inlet (2-2), and the second connecting port (51) is connected with the produced gas outlet (2-3); a first valve (32), a second valve (33) and a third valve (52) are arranged between the first connecting port (31) and the second connecting port (51), the first valve (32) is arranged at a produced gas inlet (2-2), the third valve (52) is arranged at a produced gas outlet (2-3), the second valve (33) is arranged between the first valve (32) and the third valve (52), and the first valve (32), the second valve (33) and the third valve (52) are connected through pipelines to form a U-shaped safety pipeline structure.

3. The desander with a plurality of connecting lines as claimed in claim 1 or 2, wherein: the safety pipeline (1) comprises a connecting port III (11) connected with a safety valve port (2-1), a pipeline where the connecting port III (11) is located is provided with a valve IV (12), a stop valve (13), a valve VI (14), a safety valve (15) and a valve V (16), the valve IV (12), the stop valve (13), the valve VI (14), the safety valve (15) and the valve V (16) are sequentially connected into a frame type safety pipeline structure through pipelines, the valve IV (12) and the valve VI (14) are symmetrically arranged on two sides of the frame type safety pipeline structure, the stop valve (13) is arranged on the lower portion of the frame type safety pipeline structure, and the valve V (16) and the safety valve (15) are located on the upper portion of the frame type safety pipeline structure.

4. The desander with a plurality of connecting lines as claimed in claim 3, wherein: arrange sand pipeline (6) including connector four (61), connector five (62) and arrange sand and go out sand mouth (63), connector four (61) are connected with row sand mouth (2-5), connector five (62) and blowdown pipeline (7) are connected, be equipped with valve seven (64) between connector four (61) and connector five (62) in proper order, valve eight (65) and first blowdown valve (66), arrange sand and go out sand mouth (63) and set up between valve seven (64) and valve eight (65), and arrange sand and go out the pipeline that sand mouth (63) belonged to and be equipped with first ball valve (67).

5. The desander with multiple connecting lines as claimed in claim 4 wherein: the blowdown pipeline (7) comprises a six-connection-port (71) and a seven-connection-port (72), the six-connection-port (71) is connected with the sand washing port (2-4), the seven-connection-port (72) is connected with the five-connection-port (62), two pipelines which are arranged in parallel are arranged between the six-connection-port (71) and the seven-connection-port (72), a nine-connection-port (73), an electric ball valve (74), an electric adjusting valve (75) and a second blowdown valve (76) are sequentially arranged on the upper pipeline, and a ten-connection-port (77) and a third blowdown valve (78) are sequentially arranged on the lower pipeline.

6. The desander with a plurality of connecting lines as claimed in claim 5, wherein: the sand washing pipeline (4) comprises a connecting port eight (41) and a sand washing and sand discharging port (42), the connecting port eight (41) is connected with the sand washing port (2-4), and a valve eleven (43) and a second ball valve (44) are arranged between the connecting port eight (41) and the sand washing and sand discharging port (42).

7. The desander with a plurality of connecting pipelines as claimed in any one of claims 1, 2, 4 to 6, which is characterized in that: the sand remover comprises a cylinder (22), an oval seal head (21) and a supporting seat (27) are arranged at the lower part of the cylinder (22), a sand discharge port (2-5) is positioned at the lower part of the oval seal head (21), and a quick-opening blind plate (26) is arranged at the upper part of the cylinder (22); a screen cylinder (23) is arranged in the cylinder body (22), the screen cylinder (23) is connected to the inside of the cylinder body (22) through a screen cylinder fixing structure (25), a seamless elbow (28) is arranged at the lower part of the screen cylinder (23), and the seamless elbow (28) is connected with the produced gas outlet (2-3); a flow guide structure (24) is arranged in the cylinder body (22), and the flow guide structure (24) is positioned below the produced gas outlet (2-3); the cylinder body (22) is also provided with a tuning fork liquid level switch port (2-8), a hand hole (2-7) and a liquid level meter port (2-9).

8. The desander with a plurality of connecting lines as defined in claim 7 wherein: an O-shaped ring matched with the cylinder body (22) is arranged in the quick-opening blind plate (26).

9. The desander with a plurality of connecting lines as defined in claim 8, wherein: the sieve section of thick bamboo (23) are equipped with tray (233) including sieve barrel (231), the lower part of sieve barrel (231), and the upper portion of sieve barrel (231) is connected with fixed plate (235), and fixed plate (235) are connected with connecting plate (234) of setting in barrel (22) inside through retaining member (236).

10. The desander with a plurality of connecting lines as defined in claim 9 wherein: and a sealing rubber ring (232) matched with the tray (233) is arranged at the lower part of the screen cylinder body (231).

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