CN221062152U

CN221062152U - Skid-mounted module of double desander

Info

Publication number: CN221062152U
Application number: CN202322361438.XU
Authority: CN
Inventors: 崔海涛; 徐东海
Original assignee: Puyang Xingtai Metal Structure Product Co ltd
Current assignee: Puyang Xingtai Metal Structure Product Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-06-04
Anticipated expiration: 2033-08-31

Abstract

The utility model discloses a dual-desander skid-mounted module, which solves the problems that in the prior art, the shutdown maintenance is long in time consumption when a desander skid-mounted structure works, and online recoil cleaning cannot be realized in the working process. The utility model comprises two sand remover bodies, wherein the inlet of the sand remover body is connected with an inlet pipeline, the outlet of the sand remover body is connected with an outlet pipeline, the vent of the sand remover body is connected with a vent pipeline, the drain outlet of the sand remover body is connected with a drain pipeline, the recoil port of the sand remover body is connected with a recoil pipeline, and the recoil pipeline is communicated with the outlet pipeline; the sand remover body is connected with a hoop assembly, and the two sand remover bodies are symmetrically arranged on the bottom prying assembly through the hoop assembly. The device is provided with two sand remover bodies, so that the sand remover bodies can conveniently perform non-stop sand removal treatment; the lower part of the sand remover body is provided with a sewage drain pipeline, so that on-line sand discharge can be realized. The lower part of the sand remover body is provided with a backflushing pipeline, so that online backflushing can be realized.

Description

Skid-mounted module of double desander

Technical Field

The utility model relates to the technical field of natural gas sand removal, in particular to a skid-mounted module with double sand removers.

Background

The wellhead pressure of the natural gas field is too high, the medium is complex, the fluid is changeable, and the wellhead desanding is more difficult than the gas gathering station, the metering station and the switching station. Wellhead desanders are typically used to service multiple wells, multiple fields, and the sand concentration between each field and even between different wells in the same field, and the grit size is not the same, and the wellhead desander should have wide adaptability in terms of operating conditions and performance. The existing sand remover mostly adopts gas to enter from a beveling connecting pipe, and according to the working principle of fast rotation of solid particles in the sand remover, the solid is removed from high-speed wastewater before the fluid is further treated. In order to prevent damage, fouling and clogging of downstream equipment, during operation the whole well stream is fed into a desander vessel where separation takes place inside the cyclone according to centrifugal forces, centripetal buoyancy and fluid resistance. The separated solid sand and a small amount of liquid are discharged under the action of dead weight and are subjected to a liquid reservoir which can be separated, depressurized and flushed. The performance depends on the water outlet conditions, such as particle size distribution, density of the water outlet compared to particles, viscosity of the water outlet and inlet velocity.

The process of installing the sand remover device to separate and treat the large particles is generally adopted to treat the natural gas, but the conventional sand remover for the gas well pipeline generally has poor effect in normal work. The problems that structural parts of the sand remover are quickly eroded, the sand removing effect is not thorough, a filter screen is damaged, the design flow cannot meet the field working condition, the sand leakage is caused under the peak working condition, the potential safety hazard exists, the sand discharging operation is complex and the like exist. For a long time, pipeline blockage is easy to cause, the effect of the subsequent treatment process is influenced, the normal operation and the air supply quality of equipment are influenced, and serious equipment damage can be caused. When the single sand remover discharges sewage, the sand remover needs to be suspended, sand discharge without stopping can not be realized, the time is long for stopping replacement or maintenance, on-line recoil cleaning can not be realized in the work, and the problems of incapability of recoil for an outlet pipeline and the like can not be solved.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a dual-desander skid-mounted module, which solves the problems that the shutdown maintenance is long in time consumption when the desander skid-mounted structure works and the online recoil cleaning cannot be realized in the working process in the prior art.

The technical scheme of the utility model is realized as follows: the utility model provides a two desander sled dress modules, includes two desander bodies, and the import of desander body is connected with the import pipeline, is connected with the export pipeline on the export of desander body, and the drain of desander body is connected with the drain, and the recoil mouth of desander body is connected with the recoil pipeline, and the recoil pipeline is linked together with the export pipeline; the sand remover body is connected with a hoop assembly, and the two sand remover bodies are symmetrically arranged on the bottom prying assembly through the hoop assembly.

Further, the sand remover body comprises a shell, a cyclone and a filter, wherein the cyclone is connected in the shell through a connecting sealing ring, a limiting rod assembly for limiting is arranged at the upper part of the cyclone, the lower part of the cyclone is connected with the filter, and a pollution discharge assembly is arranged at the lower part of the filter; the inlet is located above the connecting sealing ring, the outlet is located below the connecting sealing ring, and the outlet is higher than the filter.

Further, the shell comprises a shell body and a lower cylinder body, the shell body is connected to the upper portion of the lower cylinder body through a screw thread flange, a first sealing ring is arranged between the shell body and the lower cylinder body, and a quick-opening blind plate is connected to the upper portion of the shell body.

Further, all be equipped with corresponding arch on quick-opening blind plate and the casing, quick-opening blind plate passes through backup pad welding set to be fixed in the upper portion of casing, and is equipped with sealing washer two between casing and the quick-opening blind plate.

Further, the blowdown subassembly is including connecting the lower flange lid in lower barrel lower part, and the sand discharge mouth sets up on lower flange lid, is provided with the installation base down between the flange lid and the filter, is provided with the sealing washer three between lower flange lid and the installation base, is equipped with the sealing washer that is used for sealedly between installation base and the filter.

Further, the inlet pipeline, the outlet pipeline, the backflushing pipeline, the emptying pipeline and the sewage pipeline all comprise a transverse pipe and a vertical pipe, and the transverse pipe is connected with the vertical pipe through a corner connecting pipe. And the inlet pipeline, the outlet pipeline, the backflushing pipeline and the blow-down pipeline are all provided with control valves.

Further, the outer wall of the corner connecting pipe is of a square structure, a spherical groove is formed in the corner connecting pipe, at least two transition pipes communicated with the spherical groove are arranged on the corner connecting pipe, and the transition pipes are connected with the corresponding transverse pipes and the corresponding vertical pipes.

Further, the bottom sled assembly includes the bottom frame, and bottom frame's upper portion is connected with the support frame, is equipped with the rail guard on the support frame and with staple bolt assembly complex fixed access panel, still is equipped with the personnel ladder between support frame and the bottom frame.

Further, the staple bolt assembly includes two arc that interconnect, and two arc pass through connecting bolt to be connected on the desander body, and the lower part of two arc is connected with the U type connecting plate that the symmetry set up, and U type board lock joint is on fixed access panel.

The beneficial effects of the utility model are as follows: 1. the device is provided with two sand remover bodies, so that the sand remover bodies can conveniently perform non-stop sand removal treatment; the lower part of the sand remover body is provided with a sewage drain pipeline, so that on-line sand discharge can be realized. The lower part of the sand remover body is provided with a backflushing pipeline which is connected with the outlet pipeline, and the sand remover cylinder is backflushed through the outlet pipeline, so that the online backflushing can be realized.

2. The shell of the desander body is connected with the lower cylinder body through a screw thread flange, so that the cyclone and the filter can be replaced and maintained conveniently.

3. The lower flange cover is connected to lower barrel lower part, and the filter is encapsulated through the installation base to the lower flange cover, and the sand discharge mouth sets up on the lower flange cover, is convenient for remove sand and handles.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a cross-sectional view of the desander body;

FIG. 4 is a side view of the desander body;

FIG. 5 is a top view of the desander body;

FIG. 6 is a cross-sectional view of A-A of FIG. 3;

FIG. 7 is an enlarged view of a portion of FIG. 3 at B;

Fig. 8 is a cross-sectional view of the corner connection tube.

In the figure: 1. the device comprises a bottom frame, 2, an inlet pipeline, 3, a fixed access panel, 4, a protective guard, 5, an outlet pipeline, 6, a transverse pipe, 7, a corner connecting pipe, 7-1, a spherical groove, 7-2, a transition pipe, 8, a vertical pipe, 9, a ladder, 10, a backflushing pipeline, 11, a supporting frame, 12, a blow-down pipeline, 13, a blow-down pipeline, 14, a quick-opening blind plate, 14-1, a supporting plate welding component, 15, a sealing ring II, 16, a shell, 17, a sealing ring I, 18, a lower cylinder, 19, a hoop assembly, 19-1, an arc-shaped plate, 19-2, a connecting bolt, 19-3, a U-shaped plate, 20, a filter, 21, a mounting base, 22, a sealing ring III, 23, a sealing ring, 24, a lower flange cover, 25, a limiting rod assembly, 26, a connecting sealing ring, 27, a sealing ring IV, 28, a cyclone, 29 and a screw flange.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-8, embodiment 1, a dual-desander skid-mounted module, including two desander bodies, the access connection of desander body has inlet line 2, is connected with outlet line 5 on the export of desander body, and the drain of desander body is connected with drain line 13, and the drain of desander body is connected with drain line 12, and the recoil mouth of desander body is connected with recoil line 10, and recoil line 10 is linked together with outlet line 5, sets up recoil line 10 on the pipeline and washes the jar body, and the blowdown is more thorough, avoids the pipeline jam. The sand remover body is connected with a hoop assembly 19, and the two sand remover bodies are symmetrically arranged on the bottom pry assembly through the hoop assembly 19. The two sand remover bodies are arranged on the device, so that simultaneous or alternate work can be realized, and sand removal is convenient during alternate work. The inlet gas of the well head enters the sand remover body, and the inlet gas of the well head goes to the downstream prying block after the solid phase is isolated. The device adopts the body of the desander to filter and remove sand, and can realize on-line sand removal. A drain pipeline 12 is arranged at the lower part of the sand remover body, so that on-line sand discharge can be realized. The backflushing pipeline 10 is arranged at the lower part of the sand remover body, so that online backflushing can be realized.

The sand remover body is suitable for the sand discharge of a gas transmission pipeline, can safely remove fine sand grains, can effectively reduce the damage to downstream ground equipment, and removes solid phase particles by utilizing centrifugal force and gravity separation. The fluid is refracted out from the periphery through the cyclone 28 according to a certain angle after entering the sand remover body, and the solid phase particles are deposited on the lower part of the filter screen by virtue of the centrifugal force and gravity generated by the fluid. The filtered fluid is discharged through the annulus between the filter 20 and the desander body.

The device has the flow characteristics that the sand removing pry is a double-working cylinder, the upstream and downstream of the sand remover body adopt isolation valves, and the isolation valves are plate valves of 65/70 MPa. When in use, the two sand remover bodies work in turn, and fluid is converted from one sand remover body to the other sand remover body. When the solid phase of one working cylinder needs to be removed, the fluid is only poured into the other working cylinder, and then the solid phase is discharged through a drain pipeline 12 at the bottom of the sand remover body.

As shown in fig. 2-8, embodiment 2, a dual desander skid module, the desander body comprising a housing, a cyclone 28 and a filter 20, the liquid handling capacity depending on the desander body size and viscosity of the fluid being handled. The swirler 28 is connected in the shell through connecting the sealing ring 26, is equipped with four sealing rings 27 between connecting the sealing ring and the shell, and the upper portion of swirler 28 is equipped with the gag lever post assembly 25 that is used for spacing, and gag lever post assembly 25 is including connecting the threaded rod on the swirler 28, the upper portion and the threaded sleeve threaded connection of threaded rod, and still be equipped with on the threaded sleeve and be used for further fixed tight screw in top, be equipped with the spring that is used for safety protection in the threaded sleeve, the supporting effect of bracing piece assembly is guaranteed to the spring that can be further. The lower part of the cyclone 28 is connected with the filter 20, and a sewage discharging component is arranged at the lower part of the filter 20; the filter 20 is a filter screen, which can block sand removal, and different grades of filter screens are suitable for solid phase particles with different sizes. The inlet is positioned above the connecting sealing ring 26, the outlet is positioned below the connecting sealing ring 26, and the outlet is higher than the filter 20, and the cyclone and the filter screen are assembled and assembled in a combined way, so that the central line is kept on a straight line. The cyclone 28 and the filter 20 are adopted, the cyclone body can be used for respectively prefiltering and fine filtering, large liquid drops and large particles are separated from natural gas through prefiltering, then fine filtering is carried out, the particles are separated from the natural gas for the second time, and the impact of sand and stone on a filter screen can be reduced through a two-stage filtering mode, so that the filtering is more thorough.

The other structures are the same as those of embodiment 1.

As shown in fig. 2-8, in embodiment 3, a dual desander skid module is provided, the housing includes a casing 16 and a lower cylinder 18, the casing 16 is connected to an upper portion of the lower cylinder 18 through a threaded flange 29, a first sealing ring 17 is disposed between the casing 16 and the lower cylinder 18, the first sealing ring is an O-shaped sealing ring, and a quick-opening blind plate 14 is connected to an upper portion of the casing 16. The quick-opening blind plate 14 and the shell 16 are respectively provided with a corresponding bulge, the quick-opening blind plate 14 is fixed on the upper part of the shell 16 through a supporting plate welding assembly 14-1, and a second sealing ring 15 and an o-type sealing ring are arranged between the shell 16 and the quick-opening blind plate 14. The quick-opening blind plate 14 is preferably a clip-type quick-opening blind plate 14, and the clip-type quick-opening blind plate 14 is fastened on the protrusion to fix the quick-opening blind plate 14 on the upper portion of the housing 16. The quick-opening blind 14 is generally formed from barrel flanges, head covers, hook or clip, seal rings, safety interlocks, opening and closing mechanisms, swivel arms, and nipples (if desired). The novel end cover opening and closing device has the advantages that the difficulty of opening and closing the end cover is reduced through a special structure, the time required by opening and closing the end cover is reduced, the labor force is saved, and the production efficiency is improved. The quick-opening blind plate 14 does not need to disassemble and assemble the fastening bolts in sequence like the traditional bolt flange connection, and can be opened and closed by only moving the locking piece by a small distance or rotating the locking piece by a certain angle, so that a worker can finish the operation in a short time.

The other structures are the same as those of embodiment 2.

Embodiment 4, a two desander sled dress modules, blowdown subassembly is including connecting the lower flange lid 24 in lower barrel 18 lower part, and the sand discharge mouth sets up on lower flange lid 24, is provided with the installation base 21 between lower flange lid 24 and the filter screen, is provided with the sealing washer III 22 between lower flange lid 24 and the installation base 21, and the sealing washer III is the O type sealing washer, is equipped with the sealing washer that is used for sealedly between installation base 21 and the filter 20. The inlet pipeline, the outlet pipeline, the backflushing pipeline, the emptying pipeline and the sewage pipeline comprise a transverse pipe and a vertical pipe 8, and the transverse pipe and the vertical pipe 8 are connected through a corner connecting pipe 7. The upper part of the outer wall of the corner connecting pipe 7 is of a square structure, a spherical groove 7-1 is formed in the corner connecting pipe 7, at least two transition pipes 7-2 communicated with the spherical groove 7-1 are arranged on the corner connecting pipe 7, and the transition pipes 7-2 are connected with corresponding transverse pipes and corresponding vertical pipes 8. And the inlet pipeline, the outlet pipeline, the backflushing pipeline and the blow-down pipeline are all provided with control gate valves. Specifically, the control gate valve on the blow-down pipeline is a stop valve, the control gate valve on the blow-down pipeline is a blow-down ball valve, and the control gate valve on the backwash pipeline is a backwash ball valve.

The control gate valve for the blow down line and the blow down line leading from the working desander body to the standby desander body should remain closed. Opening a control gate valve on an outlet pipeline of the standby sand remover body; opening a control gate valve on an inlet pipeline of the standby sand remover body; closing a control gate valve on an inlet pipeline of the working desander body; and closing the control gate valve on the outlet pipeline of the working sand remover body.

After the operation is finished, the working sand remover body becomes a standby sand remover body, and the standby sand remover body becomes the working sand remover body.

Injecting 4-stroke sealing ester on the closed gate valve; pressurizing the working sand remover body to pipeline pressure; if leakage is found, the control gate valves on the inlet pipeline 2 and the outlet pipeline 5 of the sand remover body are closed, the control gate valve on the blow-down pipeline is opened, and rectification is carried out after pressure relief.

Sand is discharged by the spare sand remover body: closing a gate valve on an inlet pipeline and an outlet pipeline of the standby sand remover body; opening a stop valve on a standby sand remover body emptying pipeline 13, and reducing the pressure of the standby sand remover body pipeline to 1-2 MPa; opening a drain ball valve at the bottom of the spare sand remover body, and flushing out sediment in the cylinder through a drain pipeline by utilizing residual pressure in the sand remover body; closing the sewage ball valve, opening the backflushing ball valve on the backflushing pipeline, and introducing clean water into the sand remover body through the backflushing pipeline to backflush the sand remover body; closing the recoil ball valve, opening the blowdown ball valve, and enabling sand particles attached to the filter screen to fall off and flow out through a blowdown pipeline; closing the sewage ball valve to finish sand discharge.

Cleaning the filter 20: closing the gate valve of the inlet and outlet of the desander body of which the filter 20 needs to be cleaned; opening a stop valve on a desander body emptying pipeline 13 which needs to clear the filter 20, and closing the stop valve after the pressure of the desander body pipeline is reduced to 0; after the pressure of the front pressure gauge and the rear pressure gauge of the desander body is reduced to 0, opening the quick-opening blind plate 14 at the top of the desander body again, and removing the outer hexagon bolts on the cyclone 28; the filter 20 and the cyclone 28 are taken out by using an extraction tool and then cleaned; observing whether the filter screen and the O-shaped ring are damaged, and if so, replacing the filter screen and the O-shaped ring; the filter 20 and cyclone 28 are installed and the quick opening blind 14 is closed.

After the one-time use is finished, the sand remover body and the process are washed by the clear water added with the preservative for the next use; and after one well is finished, cleaning the desanding pry, maintaining all valves, replacing sealing elements and injecting sealing ester.

As shown in fig. 1, embodiment 5, a dual sand remover skid-mounted module, the bottom skid assembly includes bottom frame 1, bottom frame 1 is the "mesh" style of calligraphy frame that the slope set up, be equipped with the mounting panel on the bottom frame 1, bottom frame 1's upper portion is connected with support frame 11, the vertical welding of support frame 11 is on bottom frame 1, be equipped with rail guard 4 and with staple bolt assembly 19 complex fixed access panel 3 on the support frame 11, rail guard 4 dares to connect in the upper portion of support frame 11, the sand remover body passes through staple bolt assembly 19 and installs on support frame 11, still be equipped with personnel ladder 9 between support frame 11 and the bottom frame 1. The anchor ear assembly 19 includes two connection arc plates 19-1, and two arc plates 19-1 pass through connecting bolt 19-2 to be connected on the desander body, and the lower part of two arc plates 19-1 is connected with the U type connecting plate that the symmetry set up, and U type board 19-3 lock joint is on fixed access panel 3. The bottom prying assembly is connected with the sand remover, so that the field workload is small, and only the pipeline and the electricity are communicated to the outside, thereby saving a great deal of work for field installation of equipment. And the skid-mounted equipment has compact structure and small occupied area, and greatly saves space. The skid-mounted equipment can be integrally migrated, and the equipment recycling rate is high.

The installation process is that the bottom pry assembly is installed at the downstream of the ground safety valve, the upstream of the separator is close to the wellhead as much as possible, the pipeline is as straight as possible, and the pipeline at the upstream of the sand pry cannot be changed in diameter; the process of connecting the sand removing pry inlet and outlet is fixed by a ground anchor or a cement pier, and the interval is 10-15 meters; selecting a proper filter screen according to the viscosity of the liquid and the size of sand grains, and installing the filter screens with the same size on the two sand remover bodies; installing a pressure gauge and a differential pressure transmitter; ensuring that each sand remover body and the connecting pipeline of the differential pressure meter are in a conducting state and in a pipeline isolation state connected with the pressure relief holes; grounding the desanding pry by a correct method; the outer blow-down pipeline 12 except the sand prying machine is as straight as possible, and the height of the outer blow-down pipeline 12 does not exceed the height of the inner blow-down pipeline 12 so as to prevent sand particles from accumulating in the blow-down pipeline 12 to cause blockage.

Because the vibration that produces in the transportation can make fasteners such as bolt, nut appear becoming flexible, consequently the equipment must carry out the pressure test after arriving on-spot to the fastener after checking and fastening, can put into use after the pressure test is qualified. And (5) connecting flanges on all pipelines, and plugging unused flanges by blind plates with corresponding specifications. Before the equipment is installed, the wall thickness of the easy-to-erode point is measured, and whether erosion occurs or not is checked; when the current working sand remover body needs to be discharged or the differential pressure transmitter displays a value which is more than or equal to 600KPa0.6MPa, the wellhead incoming gas is switched to the standby cylinder of the other sand remover body. When the work is finished, clear water is used for backflushing and discharging sand, so that the sand or propping agent is prevented from being deposited in an unnecessary area; according to the actual condition of the site, sewage, sand and the like are discharged at regular time every day; to avoid affecting the accuracy of the differential pressure value, the emptying valve of the differential pressure transmitter should be opened at regular time to discharge the water in the pressure guiding pipe to pay attention to: before draining, the pressure guiding pipe opens the balance valve of the differential pressure transmitter to prevent the transmitter from being damaged due to overlarge differential pressure, and after draining, the balance valve is closed.

Other structures are the same as the embodiment.

As shown in fig. 1-8, embodiment 6, a dual-desander skid-mounted module, including two desander bodies, the access connection of desander body has inlet line 2, is connected with outlet line 5 on the export of desander body, and the drain of desander body is connected with drain line 13, and the drain of desander body is connected with drain line 12, and the recoil mouth of desander body is connected with recoil line 10, and recoil line 10 is linked together with outlet line 5, sets up recoil line 10 on the pipeline and washes the jar body, and the blowdown is more thorough, avoids the pipeline jam. The sand remover body is connected with a hoop assembly 19, and the two sand remover bodies are symmetrically arranged on the bottom pry assembly through the hoop assembly 19. The two sand remover bodies are arranged on the device, so that simultaneous or alternate work can be realized, and sand removal is convenient during alternate work. The inlet gas of the well head enters the sand remover body, and the inlet gas of the well head goes to the downstream prying block after the solid phase is isolated. The device adopts the body of the desander to filter and remove sand, and can realize on-line sand removal. A drain pipeline 12 is arranged at the lower part of the sand remover body, so that on-line sand discharge can be realized. The backflushing pipeline 10 is arranged at the lower part of the sand remover body, so that online backflushing can be realized.

The sand remover body is suitable for the sand discharge of a gas transmission pipeline, can safely remove fine sand grains, can effectively reduce the damage to downstream ground equipment, and removes solid phase particles by utilizing centrifugal force and gravity separation. The fluid is refracted out from the periphery through the cyclone 28 according to a certain angle after entering the sand remover body, and the solid phase particles are deposited on the lower part of the filter screen by virtue of the centrifugal force and gravity generated by the fluid. The filtered fluid is discharged through the annulus between the filter screen and the desander body.

In this embodiment, the sewage disposal assembly includes a lower flange cover 24 connected to the lower part of the lower cylinder 18, a sand discharge port is provided on the lower flange cover 24, a mounting base 21 is provided between the lower flange cover 24 and the filter 20, an O-ring is provided between the lower flange cover 24 and the mounting base 21, and a sealing ring for sealing is provided between the mounting base 21 and the filter 20. The inlet pipeline, the outlet pipeline, the backflushing pipeline, the emptying pipeline and the sand discharge pipeline comprise a transverse pipe and a vertical pipe 8, and the transverse pipe and the vertical pipe 8 are connected through a corner connecting pipe 7. The upper part of the outer wall of the corner connecting pipe 7 is of a square structure, a spherical groove 7-1 is formed in the corner connecting pipe 7, at least two transition pipes 7-2 communicated with the spherical groove 7-1 are arranged on the corner connecting pipe 7, and the transition pipes 7-2 are connected with corresponding transverse pipes and corresponding vertical pipes 8. And the inlet pipeline, the outlet pipeline, the backflushing pipeline and the blow-down pipeline are all provided with control gate valves. Specifically, the control gate valve on the blow-down pipeline is a stop valve, the control gate valve on the blow-down pipeline is a blow-down ball valve, and the control gate valve on the backwash pipeline is a backwash ball valve.

As shown in fig. 1, embodiment 7, a dual-desander skid-mounted module, including two desander bodies, the access connection of desander body has inlet line 2, is connected with outlet line 5 on the export of desander body, and the drain of desander body is connected with drain line 13, and the drain of desander body is connected with blow off pipeline 12, and the recoil mouth of desander body is connected with recoil pipeline 10, and recoil pipeline 10 is linked together with outlet line 5, sets up recoil pipeline 10 on the pipeline and washes the jar body, and the blowdown is more thorough, avoids the pipeline jam. The sand remover body is connected with a hoop assembly 19, and the two sand remover bodies are symmetrically arranged on the bottom pry assembly through the hoop assembly 19. The two sand remover bodies are arranged on the device, so that simultaneous or alternate work can be realized, and sand removal is convenient during alternate work. The inlet gas of the well head enters the sand remover body, and the inlet gas of the well head goes to the downstream prying block after the solid phase is isolated. The device adopts the body of the desander to filter and remove sand, and can realize on-line sand removal. A drain pipeline 12 is arranged at the lower part of the sand remover body, so that on-line sand discharge can be realized. The backflushing pipeline 10 is arranged at the lower part of the sand remover body, so that online backflushing can be realized.

In this embodiment, the end sled assembly includes bottom frame 1, bottom frame 1 is the frame of "mesh" style of calligraphy that the slope set up, be equipped with the mounting panel on bottom frame 1, bottom frame 1's upper portion is connected with support frame 11, the vertical welding of support frame 11 is on bottom frame 1, be equipped with rail guard 4 on the support frame 11 and with staple bolt assembly 19 complex fixed access panel 3, rail guard 4 dare connects on support frame 11's upper portion, the desanding device body passes through staple bolt assembly 19 and installs on support frame 11, still be equipped with personnel ladder 9 between support frame 11 and the bottom frame 1. The anchor ear assembly 19 includes two connection arc plates 19-1, and two arc plates 19-1 pass through connecting bolt 19-2 to be connected on the desander body, and the lower part of two arc plates 19-1 is connected with the U type connecting plate that the symmetry set up, and U type board 19-3 lock joint is on fixed access panel 3. The bottom prying assembly is connected with the sand remover, so that the field workload is small, and only the pipeline and the electricity are communicated to the outside, thereby saving a great deal of work for field installation of equipment. And the skid-mounted equipment has compact structure and small occupied area, and greatly saves space. The skid-mounted equipment can be integrally migrated, and the equipment recycling rate is high.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a two desander sled dress modules which characterized in that: the sand remover comprises two sand remover bodies, wherein an inlet of each sand remover body is connected with an inlet pipeline (2), an outlet pipeline (5) is connected to an outlet of each sand remover body, an emptying port of each sand remover body is connected with an emptying pipeline (13), a sewage outlet of each sand remover body is connected with a sewage pipeline (12), a backflushing port of each sand remover body is connected with a backflushing pipeline (10), and the backflushing pipeline (10) is communicated with the outlet pipeline (5); the sand remover body is connected with a hoop assembly (19), and the two sand remover bodies are symmetrically arranged on the bottom prying assembly through the hoop assembly (19).

2. The dual desander skid module of claim 1, wherein: the sand remover body comprises a shell, a cyclone (28) and a filter (20), wherein the cyclone (28) is connected in the shell through a connecting sealing ring (26), a limiting rod assembly (25) for limiting is arranged at the upper part of the cyclone (28), the lower part of the cyclone (28) is connected with the filter (20), and a pollution discharge assembly is arranged at the lower part of the filter (20); the inlet is located above the connecting seal ring (26), the outlet is located below the connecting seal ring (26), and the outlet is higher than the filter (20).

3. The dual desander skid module of claim 2, wherein: the shell comprises a shell body (16) and a lower cylinder body (18), the shell body (16) is connected to the upper portion of the lower cylinder body (18) through a threaded flange (29), a first sealing ring (17) is arranged between the shell body (16) and the lower cylinder body (18), and a quick-opening blind plate (14) is connected to the upper portion of the shell body (16).

4. The dual desander skid module of claim 3, wherein: the quick-opening blind plate (14) and the shell (16) are respectively provided with a corresponding bulge, the quick-opening blind plate (14) is fixed on the upper part of the shell (16) through a supporting plate welding assembly (14-1), and a sealing ring II (15) is arranged between the shell (16) and the quick-opening blind plate (14).

5. The dual desander skid module of any one of claims 2-4, wherein: the blowdown subassembly is including connecting lower flange lid (24) in lower barrel (18) lower part, and the sand discharge mouth sets up on lower flange lid (24), is provided with installation base (21) between lower flange lid (24) and filter (20), is provided with sealing washer three (22) between lower flange lid (24) and installation base (21), is provided with sealing washer (23) that are used for sealedly between installation base (21) and filter (20).

6. The dual desander skid module of claim 5, wherein: the inlet pipeline (2), the outlet pipeline (5), the backflushing pipeline (10), the emptying pipeline (13) and the sewage pipeline (12) comprise transverse pipes and vertical pipes (8), and the transverse pipes and the vertical pipes (8) are connected through corner connecting pipes (7).

7. The dual desander skid module of claim 6, wherein: control valves are arranged on the inlet pipeline (2), the outlet pipeline (5), the backflushing pipeline (10) and the emptying pipeline (13).

8. The dual desander skid module of claim 7, wherein: the outer wall of the corner connecting pipe (7) is of a square structure, a spherical groove (7-1) is formed in the corner connecting pipe (7), at least two transition pipes (7-2) communicated with the spherical groove (7-1) are arranged on the corner connecting pipe (7), and the transition pipes (7-2) are connected with corresponding transverse pipes and corresponding vertical pipes (8).

9. The dual desander skid module of any one of claims 1-4, 6-8, wherein: the bottom sled assembly includes bottom frame (1), and the upper portion of bottom frame (1) is connected with support frame (11), is equipped with rail guard (4) on support frame (11) and with staple bolt assembly (19) complex fixed access panel (3), still is equipped with personnel ladder (9) between support frame (11) and bottom frame (1).

10. The dual desander skid module of claim 9, wherein: the anchor ear assembly (19) comprises two arc plates (19-1) which are connected with each other, the two arc plates (19-1) are connected to the sand remover body through connecting bolts (19-2), the lower parts of the two arc plates (19-1) are connected with symmetrically arranged U-shaped connecting plates, and the U-shaped plates (19-3) are buckled on the fixed access plate (3).