CN105879482A - Spiral extruding and sand discharging device for carrying out rotational flow reinforcing and sand removing - Google Patents

Spiral extruding and sand discharging device for carrying out rotational flow reinforcing and sand removing Download PDF

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Publication number
CN105879482A
CN105879482A CN201610361491.1A CN201610361491A CN105879482A CN 105879482 A CN105879482 A CN 105879482A CN 201610361491 A CN201610361491 A CN 201610361491A CN 105879482 A CN105879482 A CN 105879482A
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CN
China
Prior art keywords
cylinder
sand
desanding
collection sand
rotational flow
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Granted
Application number
CN201610361491.1A
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Chinese (zh)
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CN105879482B (en
Inventor
汪威
郑小涛
王波
喻九阳
林纬
徐建民
王成刚
卢霞
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Wuhan Xincheng Intelligent Manufacturing Technology Co Ltd
Wuhan Institute of Technology
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Wuhan Xincheng Intelligent Manufacturing Technology Co Ltd
Wuhan Institute of Technology
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Priority to CN201610361491.1A priority Critical patent/CN105879482B/en
Publication of CN105879482A publication Critical patent/CN105879482A/en
Application granted granted Critical
Publication of CN105879482B publication Critical patent/CN105879482B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/34Arrangements for separating materials produced by the well
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2221/00Applications of separation devices
    • B01D2221/04Separation devices for treating liquids from earth drilling, mining

Abstract

The invention discloses a spiral extruding and sand discharging device for carrying out rotational flow reinforcing and sand removing. The device comprises a sand removing cylinder, a sand collecting cylinder, a sand discharging pipeline and a secondary rotational flow filtering mechanism. The secondary rotational flow filtering mechanism comprises a motor, a spiral extruding rod, spiral squeezing blades, a connecting disc, a filtering screen frame, a sand filtering screen and a rotational flow reinforcing device. The spiral extruding rod is fixedly connected with a motor, and the upper end of the spiral extruding rod extends into the bottom of the sand collecting cylinder. The spiral extruding rod is sleeved with the spiral squeezing blades. The rotational flow reinforcing device is fixedly installed on the top of the spiral extruding rod. The upper end of the rotational flow reinforcing device stretches into a cylindrical rotational flow cavity. The connecting disc is fixedly installed at the upper end of the spiral extruding rod in a sleeving mode. Multiple sand collecting plates are uniformly arranged on the upper surface of the connecting disc. Sand flowing holes are formed in the connecting plate. Separating can be achieved under the circumstance of low flowing speed of liquid in an inlet, and the device can operate continuously without intermittence.

Description

Strengthen Swirling flow sand-removing screw extrusion sand discharge apparatus
Technical field
The present invention relates to a kind of Oil/gas Well Produced Liquid desanding device, be specifically related to a kind of Swirling flow sand-removing screw extrusion sand discharge of strengthening and fill Put.
Background technology
In crude oil production testing operation, flow to containing a certain amount of sand grains in the fluid on ground from Oil/gas Well, in gas fortune at a high speed The dynamic lower formation jet in sand at a high speed.This containing sand jet, ground gathering line and equipment are formed the most serious erosion and abrasion Destroy, in some instances it may even be possible to pierce through pipeline fitting, leakage accident occurs, affect oilfield safety and produce, cause surrounding severe contamination With unnecessary economic loss.
Therefore, Oil/gas Well Produced Liquid, before entering surface gathering system, needs to install well head desanding device, carries out Produced Liquid Desanding operation, separates as far as possible by solid particles such as sand grains.At present, desanding device oil field used is former according to desanding Reason difference is roughly divided into two kinds, i.e. filtering type desanding device and spiral-flow type desanding device.Filtering type desanding device is by built-in filter Sand cylinder can filter a certain size solid particle, but due to the restriction of himself structure, this device cannot realize automatic sand draining, And when well stream sand content is bigger, it is impossible to clear up sand filtering barrel in time, have that desanding efficiency is the highest, sediment outflow labor intensity is big Not enough;Spiral-flow type desanding device is mostly used in oil-gas gathering and transportation system, and its operating pressure is the most relatively low, and decay resistance is poor, Can not change the physical dimension in its cyclonic separation chamber according to the requirement of well stream treating capacity and partition size, process range is limited.
Summary of the invention
It is an object of the invention to provide a kind of reinforcement Swirling flow sand-removing screw extrusion sand discharge apparatus, its desanding efficiency is high, sediment outflow labor Fatigue resistance is little, processes job area big, and can run steadily in the long term under high pressure operating mode and strong corrosive environment.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of reinforcement Swirling flow sand-removing screw extrusion sand discharge apparatus, this device includes desanding cylinder, the collection sand set gradually from top to bottom Cylinder and sediment outflow pipeline, also include two grades of cyclone filter mechanisms;Wherein,
The top of described desanding cylinder is provided with end cap, the barrel of described desanding cylinder offers the jet import misplaced up and down and penetrates Flow export, described jet exit is positioned at the top of jet import, be equipped with the most successively in described desanding cylinder erosion control cylinder and Disconnectable whirl cylinder, described erosion control cylinder is provided with the borehole connected with described jet exit, and described whirl cylinder has top Cylindrical Cyclone chamber and the conical disengagement chamber of bottom, the barrel in described Cylindrical Cyclone chamber is provided with described jet import even Logical tangential borehole, the top in described Cylindrical Cyclone chamber is provided with isolation cover plate, the center of described isolation cover plate be inserted with The overflow pipe of described erosion control cylinder connection, the bottom of described cone disengagement chamber is provided with the spigot connected with described collection sand cylinder;
The bottom of described collection sand cylinder is provided with and the sand removing hole of described sediment outflow pipeline communication;
Sand export is offered on the sidewall of described sediment outflow pipeline;
Described two grades of cyclone filter mechanisms include motor, screw extrusion bar, screw press blade, connection dish, filter rack, Filter sand net and eddy flow intensive, described motor is arranged on the bottom of sediment outflow pipeline, and the lower end of described screw extrusion bar is solid with motor Fixed connection, its upper end passes vertically through sediment outflow pipeline and stretches into bottom collection sand cylinder, and described screw press blade is sleeved on described spiral and squeezes The outside of depression bar, described eddy flow intensive is fixedly mounted on the top of described screw extrusion bar, the upper end of described eddy flow intensive Being upward through collection sand cylinder and stretch into Cylindrical Cyclone intracavity, the upper end of described eddy flow intensive is provided with cross swirl vane, institute Stating connection dish and be fixedly set in the upper end of described screw extrusion bar, the upper surface of described connection dish is evenly arranged with multiple collection sand Plate, described connection dish offers multiple and described sediment outflow pipeline communication quicksand hole, and described filtration rack is fixedly mounted on institute State the periphery of connection dish, and and the inwall of described collection sand cylinder between be provided with certain interval, described filtration rack uniformly offers Several outages, described filter sand net is arranged in collecting sand cylinder and is positioned at the lower section of connection dish, and the sidewall of described collection sand cylinder is upper Leakage fluid dram is offered in the lower section of filter sand net.
By technique scheme, circumferentially positioned by keyway matching mechanism between described connection dish and screw extrusion bar.
By technique scheme, described collection sand plate be shaped as right angled triangle, its two right-angle sides respectively be connected dish and mistake Screen holder contacts.
By technique scheme, the upper end of described filtration rack is concordant with the upper end of collection sand cylinder.
By technique scheme, the upper end of described eddy flow intensive keeps at a certain distance away and is provided with two cross swirl vanes.
By technique scheme, the inwall of described desanding cylinder is provided with ring-shaped step, outside described ring-shaped step is with isolation cover plate Keyway fit structure is passed through circumferentially positioned between edge.
By technique scheme, between described end cap and desanding cylinder, all it is bolted to connection between desanding cylinder and collection sand cylinder, And sealed by O RunddichtringO;It is bolted to connection between described collection sand cylinder and sediment outflow pipeline, and passes through metal sealing Pad seals.
By technique scheme, pacify at the jet import of described desanding cylinder and the fit clearance of the tangential borehole in Cylindrical Cyclone chamber Equipped with rubber seal.
By technique scheme, described end cap is provided with the suspension ring being easy to lifting handling.
By technique scheme, the surface of internal cavity of described whirl cylinder is coated with wear-resistant ceramic layer.
The method have the advantages that this device, can be to collection by arranging two grades of cyclone filter mechanisms in collection sand cylinder The solid particles such as the sand grains in sand cylinder carry out secondary separation and settle, and are cleaned in infall process, specially start electricity Machine drives screw extrusion bar to rotate and then band is dynamically connected, and dish rotates so that falls into the solid phase particles such as the sand grains in collection sand cylinder well stream and exists Be pooled to the middle part of connection dish faster under the effect of collection sand plate, then in quicksand hole falls into sediment outflow pipeline, after through sand export Discharging, the liquid phase medium such as part oil in well stream, water is discharged through the outage of screen holder, then through arranging after filter sand net filtration Liquid mouth is discharged, and motor operates without stopping, and the sand grains of extruding constantly sedimentation makes it fill up gaps underneath, thus ceaselessly discharges sand grains With part profit;It addition, this device installs eddy flow intensive at the top of extrusion spiral bar, revolved by driven by motor cross Stream blade rotates, and strengthens inner eddy flow field, increases the centrifugal force separated, to be carried out by the well stream injecting Cylindrical Cyclone intracavity Strengthen eddy flow, also can realize separating in the case of Inlet fluid flow velocity is low.
It is inside the detachable desanding cylinder being fixed on heavy wall of whirl cylinder in the present invention, its simple in construction, with low cost, Well stream desanding operation can either be effectively carried out under high-voltage bidirectional power, again can be according to well stream treating capacity and the requirement of partition size Changing flexibly, desanding efficiency is high, and sediment outflow labor intensity is little, processes job area big;And, whirl cylinder is by Cylindrical Cyclone Chamber and lower cone disengagement chamber composition, upper and lower two parts function is clearly demarcated, and its inner surface also can coat wear-resistant ceramic layer, the most permissible Guarantee that the solid particle rapid subsidence such as the sand grains in well stream separate, can ensure that again whirl cylinder has good wear resistance and corrosion resistance Can, extension device uses the cycle;Meanwhile, two grades of cyclone filter mechanisms can carry out automatic sand draining operation, can be the most free of discontinuities Run, improve sediment outflow efficiency, reduce manual work labor intensity.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of erosion control cylinder in the embodiment of the present invention.
Fig. 3 is the structural representation of whirl cylinder in the embodiment of the present invention.
Fig. 4 is the structural representation of desanding cylinder in the embodiment of the present invention.
Fig. 5 is the structural representation collecting sand cylinder in the embodiment of the present invention.
Fig. 6 is the structural representation of sediment outflow pipeline in the embodiment of the present invention.
Fig. 7 is screw extrusion bar and the structural representation of screw press blade in the embodiment of the present invention.
Fig. 8 is the sectional view of line A-A along Fig. 1.
Fig. 9 is the sectional view of line B-B along Fig. 1.
Figure 10 is the structural representation of filter sand net in the embodiment of the present invention.
Figure 11 is the structural representation of connection dish in the embodiment of the present invention.
Figure 12 is the top view of connection dish in the embodiment of the present invention.
Figure 13 is the structural representation filtering rack in the embodiment of the present invention.
Figure 14 is the structural representation of eddy flow intensive in the embodiment of the present invention.
Figure 15 is the top view of eddy flow intensive in the embodiment of the present invention.
In figure: 1-end cap, 1.1-suspension ring, 2-erosion control cylinder, 2.1-borehole, 3-desanding cylinder, 3.1-jet import, 3.2-penetrate Flow export, 3.3-ring-shaped step, 4-whirl cylinder, 4.1-Cylindrical Cyclone chamber, 4.2-cone disengagement chamber, 4.3-tangentially dig Hole, 4.4-isolate cover plate, 4.5-overflow pipe, 4.6-spigot, 5-collection sand cylinder, 5.1-sand removing hole, 5.2-leakage fluid dram, 6- Sediment outflow pipeline, 6.1-sand export, bis-grades of cyclone filter mechanisms of 7-, 7.1-screw extrusion bar, 7.2-screw press blade, 7.3- Motor, 7.4-connection dish, 7.5-filter rack, 7.6-filter sand net, 7.7-collection sand plate, 7.8-quicksand hole, 7.9-outage, 8-eddy flow intensive, 8.1-cross swirl vane.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, to this Invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not For limiting the present invention.
In the preferred embodiment, as it is shown in figure 1, one strengthens Swirling flow sand-removing screw extrusion sand discharge apparatus, this dress Put desanding cylinder 3, collection sand cylinder 5 and the sediment outflow pipeline 6 including setting gradually from top to bottom, also include two grades of cyclone filter mechanisms 7;
As shown in Fig. 1-Fig. 4, Fig. 8-Fig. 9, the top of desanding cylinder 3 is provided with end cap 1, and the barrel of desanding cylinder 3 is offered Having the jet import 3.1 and jet exit 3.2 misplaced up and down, jet exit is positioned at the top of jet import, in desanding cylinder 3 Being equipped with erosion control cylinder 2 and disconnectable whirl cylinder 4 the most successively, erosion control cylinder 2 is provided with digging of connecting with jet exit Hole 2.1, whirl cylinder 4 has the Cylindrical Cyclone chamber 4.1 on top and the conical disengagement chamber 4.2 of bottom, Cylindrical Cyclone The barrel in chamber 4.1 is provided with the tangential borehole 4.3 connected with jet import 3.1, and the top in Cylindrical Cyclone chamber 4.1 is arranged Having isolation cover plate 4.4, the center of isolation cover plate 4.4 to be inserted with the overflow pipe 4.5 connected with erosion control cylinder 2, cone separates The bottom in chamber 4.2 is provided with and collects the spigot 4.6 that sand cylinder connects;
As it is shown in figure 5, the bottom of collection sand cylinder 5 is provided with the sand removing hole 5.1 with sediment outflow pipeline communication;
As shown in Figure 6, the sidewall of sediment outflow pipeline 6 offers sand export 6.1;
As shown in Fig. 1, Fig. 7, Figure 10-Figure 15, two grades of cyclone filter mechanisms 7 include motor 7.3, screw extrusion bar 7.1, Screw press blade 7.2, connection dish 7.4, filtration rack 7.5, filter sand net 7.6 and eddy flow intensive 8, motor 7.3 is pacified Being contained in the bottom of sediment outflow pipeline 6, the lower end of screw extrusion bar 7.1 is fixing with motor 7.3 to be connected, and its upper end passes vertically through row Sand pipeline 6 stretches into and arranges bottom collection sand cylinder 5, and screw press blade 7.2 is sleeved on the outside of screw extrusion bar 7.1, eddy flow Intensive 8 is fixedly mounted on the top of screw extrusion bar 7.1, and the upper end of eddy flow intensive 8 is upward through collection sand cylinder 5 and stretches into In Cylindrical Cyclone chamber 4.1, the upper end of eddy flow intensive 8 is provided with cross swirl vane 8.1, the fixing peace of connection dish 7.4 Being contained in the upper end of screw extrusion bar 7.1, the upper surface of connection dish 7.4 is evenly arranged with multiple collection sand plate 7.7, connection dish 7.4 On offer multiple quicksand hole 7.8 connected with sediment outflow pipeline 6, filter rack 7.5 and be fixedly mounted on outside connection dish 7.4 Week, and and the inwall of collection sand cylinder 5 between be provided with certain interval, filter and uniformly offer several outages 7.9 on rack 7.5, Filter sand net 7.6 is arranged in collecting sand cylinder 5 and is positioned at the lower section of connection dish 7.4, and the sidewall of collection sand cylinder 5 is positioned at filter sand net 7.6 Lower section offer leakage fluid dram 5.2.
In a preferred embodiment of the invention, as it is shown in figure 1, pass through keyway between connection dish 7.4 and screw extrusion bar 7.1 Matching mechanism is circumferentially positioned.
In a preferred embodiment of the invention, as shown in Fig. 1, Figure 11, Figure 12, collect sand plate 7.7 is shaped as right angle three Dihedral, its two right-angle sides contact with connection dish 7.4 and filtration rack 7.5 respectively.
In a preferred embodiment of the invention, as it is shown in figure 1, the upper end filtering rack 7.5 is concordant with the upper end of collection sand cylinder 5.
In a preferred embodiment of the invention, as shown in Fig. 1, Figure 14, Figure 15, the interval, upper end one of eddy flow intensive 8 Set a distance is provided with two cross swirl vanes 8.1, and the quantity of swirl vane sets according to demand.
In a preferred embodiment of the invention, as Figure 1 and Figure 4, the inwall of desanding cylinder 3 is provided with ring-shaped step 3.3, Keyway fit structure is passed through circumferentially positioned between the outward flange of ring-shaped step 3.3 and isolation cover plate 4.4, so that it is guaranteed that whirl cylinder Separating effect.The top of erosion control cylinder 2 abuts with end cap 1, and the bottom of erosion control cylinder 2 abuts with isolation cover plate 4.4, to incite somebody to action It is firm that whirl cylinder axially positions.
In a preferred embodiment of the invention, as it is shown in figure 1, between end cap 1 and desanding cylinder 3, desanding cylinder 3 and collection sand cylinder All it is bolted between 5, and by O RunddichtringO, contact jaw face is sealed, collection sand cylinder 5 and sediment outflow pipeline 6 Between be bolted, and sealed by metallic gasket.
In a preferred embodiment of the invention, as shown in Fig. 1, Fig. 9, the jet import of desanding cylinder and Cylindrical Cyclone chamber At the fit clearance of tangential borehole, rubber seal is installed.
In a preferred embodiment of the invention, as it is shown in figure 1, be provided with the suspension ring 1.1 being easy to lifting handling on end cap 1, Lifted by crane by air hoist, it is convenient to change, clear up whirl cylinder.
In a preferred embodiment of the invention, the inwall of whirl cylinder is coated with wear-resistant ceramic layer, good resistance to ensure that it has Mill corrosion resistance, the working life of extension device.All parts of the present invention all use anti-sulfur material manufacture, it is possible to containing H2S Long-term stable operation under the environment under high pressure of etchant gas.
The work process of the present invention is: when desanding operation, and well stream is tangentially injected the circle of whirl cylinder by the jet import of desanding cylinder Strengthen eddy flow in cylindricality vortex chamber and by eddy flow intensive, realize cyclonic separation under the influence of centrifugal force;Well after desanding The overflow pipe that stream passes upward through on isolation cover plate enters in erosion control cylinder, then the jet exit of desanding cylinder flows to downstream;In well stream The solid phase particles such as sand grains and partly oil, water fall into collection sand cylinder, the screw extrusion bar band in collection sand cylinder through the spigot of whirl cylinder Be dynamically connected disc spins, the solid particles such as sand grains is carried out secondary separation and settles, and is cleaned in infall process;Sand discharge The screw extrusion bar of pipeline operates without stopping, and the gravel of extruding constantly sedimentation makes it fill up gaps underneath, thus ceaselessly discharges sand Gravel and part water.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted, and All these modifications and variations all should belong to the protection domain of claims of the present invention.

Claims (10)

1. strengthen Swirling flow sand-removing screw extrusion sand discharge apparatus for one kind, it is characterised in that this device includes setting gradually from top to bottom Desanding cylinder, collection sand cylinder and sediment outflow pipeline, also include two grades of cyclone filter mechanisms;Wherein,
The top of described desanding cylinder is provided with end cap, and the barrel of described desanding cylinder offers the jet import misplaced up and down And jet exit, described jet exit is positioned at the top of jet import, is equipped with the most successively in described desanding cylinder Erosion control cylinder and disconnectable whirl cylinder, described erosion control cylinder is provided with the borehole connected with described jet exit, described eddy flow Cylinder has the Cylindrical Cyclone chamber on top and the conical disengagement chamber of bottom, and the barrel in described Cylindrical Cyclone chamber is provided with With the tangential borehole of described jet inlet communication, the top in described Cylindrical Cyclone chamber is provided with isolation cover plate, described every Be inserted with the overflow pipe connected with described erosion control cylinder from the center of cover plate, the bottom of described cone disengagement chamber is provided with and institute State the spigot of collection sand cylinder connection;
The bottom of described collection sand cylinder is provided with and the sand removing hole of described sediment outflow pipeline communication;
Sand export is offered on the sidewall of described sediment outflow pipeline;
Described two grades of cyclone filter mechanisms include motor, screw extrusion bar, screw press blade, connection dish, drainage screen Frame, filter sand net and eddy flow intensive, described motor is arranged on the bottom of sediment outflow pipeline, the lower end of described screw extrusion bar Fixing with motor and be connected, its upper end passes vertically through sediment outflow pipeline and stretches into bottom collection sand cylinder, and described screw press blade is set with In the outside of described screw extrusion bar, described eddy flow intensive is fixedly mounted on the top of described screw extrusion bar, described The upper end of eddy flow intensive is upward through collection sand cylinder and stretches into Cylindrical Cyclone intracavity, and the upper end of described eddy flow intensive is provided with Cross swirl vane, described connection dish is fixedly set in the upper end of described screw extrusion bar, the upper table of described connection dish Face is evenly arranged with multiple collection sand plate, and described connection dish offers multiple and described sediment outflow pipeline communication quicksand hole, Described filtration rack is fixedly mounted on the periphery of described connection dish, and and the inwall of described collection sand cylinder between be provided with certain between Gap, described filtration rack uniformly offers several outages, and described filter sand net is arranged in collecting sand cylinder and is positioned at even The lower section of flange, the lower section that the sidewall of described collection sand cylinder is positioned at filter sand net offers leakage fluid dram.
Device the most according to claim 1, it is characterised in that joined by keyway between described connection dish and screw extrusion bar Close mechanism circumferentially positioned.
Device the most according to claim 1, it is characterised in that described collection sand plate be shaped as right angled triangle, its two Right-angle side respectively be connected dish and drainage screen bridge joint and touch.
Device the most according to claim 1, it is characterised in that the upper end of described filtration rack is concordant with the upper end of collection sand cylinder.
Device the most according to claim 1, it is characterised in that the upper end of described eddy flow intensive keeps at a certain distance away and is provided with Two cross swirl vanes.
Device the most according to claim 1, it is characterised in that the inwall of described desanding cylinder is provided with ring-shaped step, described Keyway fit structure is passed through circumferentially positioned between the outward flange of ring-shaped step and isolation cover plate.
Device the most according to claim 1, it is characterised in that between described end cap and desanding cylinder, desanding cylinder with collection sand cylinder Between be all bolted to connection, and sealed by O RunddichtringO;Pass through between described collection sand cylinder and sediment outflow pipeline Bolt is fixing to be connected, and is sealed by metallic gasket.
Device the most according to claim 1, it is characterised in that the jet import of described desanding cylinder and Cylindrical Cyclone chamber At the fit clearance of tangential borehole, rubber seal is installed.
Device the most according to claim 1, it is characterised in that described end cap is provided with the suspension ring being easy to lifting handling.
Device the most according to claim 1, it is characterised in that the surface of internal cavity of described whirl cylinder is coated with wear-resistant ceramic layer.
CN201610361491.1A 2016-05-26 2016-05-26 Strengthen Swirling flow sand-removing screw extrusion sand discharge apparatus Expired - Fee Related CN105879482B (en)

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CN108590622A (en) * 2018-05-04 2018-09-28 西南石油大学 A kind of gas hydrates underground separator with vortex generator
CN109289308A (en) * 2018-11-12 2019-02-01 刘俊 A kind of pressure water filtering device
CN110080703A (en) * 2019-06-15 2019-08-02 王海峰 A kind of pulp water separation drilling method for aperture erosion control
CN114293969A (en) * 2022-01-12 2022-04-08 江苏华普泰克石油装备有限公司 Shut-down-free type sand removing and separating device for natural gas well head
CN115199253A (en) * 2022-07-12 2022-10-18 东北石油大学 Self-adaptive sand removing and washing device for wellhead gathering and transportation pipeline

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CN1383926A (en) * 2002-03-05 2002-12-11 高根树 Settling centrifuger with internal rotor
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CN110080703A (en) * 2019-06-15 2019-08-02 王海峰 A kind of pulp water separation drilling method for aperture erosion control
CN114293969A (en) * 2022-01-12 2022-04-08 江苏华普泰克石油装备有限公司 Shut-down-free type sand removing and separating device for natural gas well head
CN115199253A (en) * 2022-07-12 2022-10-18 东北石油大学 Self-adaptive sand removing and washing device for wellhead gathering and transportation pipeline
CN115199253B (en) * 2022-07-12 2023-04-25 东北石油大学 Self-adaptive sand removing and washing device for wellhead gathering pipeline

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