CN214532927U - Matrix flexible sand remover - Google Patents
Matrix flexible sand remover Download PDFInfo
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- CN214532927U CN214532927U CN202120638077.7U CN202120638077U CN214532927U CN 214532927 U CN214532927 U CN 214532927U CN 202120638077 U CN202120638077 U CN 202120638077U CN 214532927 U CN214532927 U CN 214532927U
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Abstract
The utility model discloses a flexible desander of matrix relates to oil and gas sand removal equipment technical field. The utility model comprises a cylinder, a cone, a cover plate and an air inlet pipe, wherein the upper end of the cone is connected with the lower end of the cylinder, the cover plate is sealed and arranged at the upper end of the cylinder, and the bottom of the cone is provided with a sand outlet; the air inlet pipe is connected with the cylinder body along the tangent line of the cylinder body, the middle part of the cover plate is connected with the air outlet pipe, and the air outlet pipe is coaxial with the cylinder body; a plurality of rotating shafts are arranged in the cylinder body and are parallel to the axis of the cylinder body; the rotating shaft is provided with a plurality of energy absorption blocks, and the energy absorption blocks can rotate relative to the rotating shaft. The utility model discloses a gravel kinetic energy conversion that kinetic energy's conversion contained in with gas avoids direct collision internals, lets husky oneself subside, thereby the life-span of the longer life of extension product greatly can be obtained to the subassembly of interception husky.
Description
Technical Field
The utility model relates to an oil and gas sand removal equipment technical field, more specifically say and relate to a flexible desander of matrix.
Background
With the rapid development of economy in China, natural gas is increasingly widely applied; the natural gas is collected from a wellhead along with high temperature, high pressure and bagged solid particles in the collecting process, the gas containing the solid particles is conveyed to the downstream along with a pipeline, huge impact can be caused on the pipeline elements at the turning position and the position passing through a pipeline valve, the pipeline and related equipment at the rear end are damaged, high-pressure gas leakage is caused, and the leaked high-pressure gas can cause destructive damage to the nearby parts.
Therefore, solid particles contained in the collected gas need to be removed within the first time so as to protect the safe operation of the back-end equipment and the pipeline thereof.
The national intellectual property office in 2018, 3/13 discloses a utility model with publication number CN207093055U entitled "natural gas well head desanding device", which comprises a cylinder, an air inlet end enclosure and a blind plate, wherein the air inlet end enclosure and the blind plate are respectively connected with two ends of the cylinder through bolts in a sealing manner, a sand filtering pipe is clamped between the air inlet end enclosure and the blind plate, the sand filtering pipe is provided with sand filtering holes, natural gas raw gas enters the interior of the sand filtering pipe through the air inlet end enclosure, enters an annular space between the cylinder and the sand filtering pipe after being filtered by the sand filtering holes and then is discharged from an air outlet at the bottom of the cylinder, two ends of the sand filtering pipe are respectively inserted on the air inlet end enclosure and the blind plate, the blind plate of the utility model is still connected through bolts, a cover plate for cleaning sand is additionally arranged on the blind plate, and after the cover plate is removed, a worker can clean sand inside a rake of the sand filtering pipe through tools such as a scraper without taking out the sand filtering pipe, also can carry out degree of depth clearance or change after taking out the round hole on the blind plate with the sand screen, the clearance process is very convenient.
The sand removing device in the prior art and other types of sand removing devices in the prior art can operate in a short time and obtain satisfactory effects. However, the sand screen pipe is usually eroded by the high-pressure sand-carrying natural gas, so that the sand screen hole, the pipe wall and the like of the sand screen pipe are irreversibly damaged, the sand screen pipe needs to be replaced after the sand screen pipe runs for a period of time, and the service life of the sand screen pipe is relatively short.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect and not enough that exist among the above-mentioned prior art, the utility model provides a flexible desander of matrix, the utility model discloses an invention aim at solve among the prior art natural gas well head sand removal device life weak point, need frequently change spare part to lead to the problem that running cost is high. The utility model discloses a flexible desander of matrix passes through the gravel kinetic energy conversion that kinetic energy's conversion contains in with gas, avoids direct collision internals, lets husky oneself subside, thereby the subassembly of interception husky can obtain the life-span of longer life extension product greatly.
In order to solve the problems existing in the prior art, the utility model discloses a realize through following technical scheme:
the matrix type flexible sand remover comprises a cylinder body, a cone, a cover plate and an air inlet pipe, wherein the upper end of the cone is connected with the lower end of the cylinder body, the cover plate is sealed and arranged at the upper end of the cylinder body, and the bottom of the cone is provided with a sand discharge port; the air inlet pipe is connected with the cylinder body along the tangent line of the cylinder body, the middle part of the cover plate is connected with the air outlet pipe, and the air outlet pipe is coaxial with the cylinder body; the energy absorption device is characterized in that a plurality of rotating shafts are arranged in the cylinder body, a plurality of energy absorption blocks are mounted on the rotating shafts, and the energy absorption blocks can rotate relative to the rotating shafts.
The rotating shaft is arranged in parallel to the axis of the cylinder.
The rotating shaft is arranged in parallel to the radial direction of the cylinder body.
The rotating shafts are uniformly distributed in the area correspondingly connected with the air inlet pipe in the cylinder body.
The rotating shafts are uniformly distributed in all the areas except the area connected with the air outlet pipe in the cylinder body.
The upper end of the rotating shaft is fixedly arranged at the bottom of the cover plate.
The air outlet pipe extends into the cover plate and extends into the cylinder body.
The energy absorption block is a wind wheel.
The plurality of energy absorption blocks on the plurality of rotating shafts are arranged in a matrix.
The energy absorption block is connected with the rotating shaft through a bearing.
The utility model discloses a theory of operation does:
the high-pressure natural gas containing sand enters a cylinder body area of the desander through the air inlet pipe, after the gas containing sand enters the cylinder body along the tangential direction of the side wall of the cylinder body, strong cyclone is generated, the air flow enters downwards along the inner wall of the cylinder body in a spiral shape, dust particles and liquid drops with high density are thrown to the inner wall of the cylinder body under the action of centrifugal force, and under the action of gravity, the air flow falls to a desanding cylinder formed by a cone at the bottom along the inner wall, the rotating air flow shrinks in the cylinder body and flows to the center, and secondary vortex flows out from the top of the equipment through the air outlet pipe, so that air-sand separation is realized.
Furthermore, the sand-containing high-pressure natural gas enters the cylindrical body area of the device through the air inlet pipe, when the sand-containing gas enters the cylindrical body along the tangential direction of the wall of the cylindrical body, the sand-containing gas rushes to the energy absorption blocks arranged in a matrix, the sand in the air flow collides with the dense energy absorption blocks, the speed is reduced after the collision, the sand directly falls to the cone at the bottom under the action of gravity, the rotating air flow shrinks in the cylindrical body to flow to the center, and secondary vortexes are formed upwards and flow out from the top of the device through the air outlet pipe, so that the gas-sand separation is realized.
Furthermore, when the sand particles enter the cylinder body along with the airflow and collide with the first energy absorption block, the energy of the sand particles is lost, and after the sand particles collide with the energy absorption block, the rotational kinetic energy of the energy absorption block is increased or reduced; meanwhile, the gravel is bounced off from the tangential direction by the rotating energy absorption block, the kinetic energy of the gravel is weakened once, the bounced gravel collides with the nearby energy absorption block again, the process is repeated again, the speed of the gravel is weakened to be enough to be captured by gravity to fall into a sand collection area formed by the cone after passing through the energy absorption area arranged in a matrix mode, and the aim of sand removal is achieved. The rotation of each energy absorption block can be clockwise or anticlockwise, the speeds are different, gravel enters the matrix area at a high speed and then is converted into energy which is different from that of the energy absorption blocks, and the energy of the rotating energy absorption blocks is consumed and tends to be balanced in the friction process with a shaft or the scouring of gas turbulence.
Compared with the prior art, the utility model discloses profitable technological effect who brings shows:
the utility model discloses an energy-absorbing piece adopts along axle pivoted roller form, and the sand that carries among the high-pressure gas is at collision in-process many times, and the kinetic energy direct conversion of sand is the rotational energy of energy-absorbing piece, and through the border collision back along tangential direction once more with the repeated last process of next energy-absorbing piece, until the energy of gravel is by whole receipt, and the gravel that loses kinetic energy falls into the collection sand region, has realized the purpose of sand removal. Because the movement of the gravel and the energy absorption block are energy interconversion, the collision force of the gravel and the energy absorption block is greatly weakened, the cutting of the energy absorption block by the gravel is highly weakened, and the flexible desanding process is realized; thereby greatly prolonging the service life of the desanding equipment.
Drawings
FIG. 1 is a schematic cross-sectional view of the sand remover of the present invention;
FIG. 2 is a schematic view of the energy conversion structure between sand grains and an energy absorption block in the sand remover of the present invention;
FIG. 3 is a schematic view of a sand remover according to the present invention;
reference numerals: 1. the device comprises a cylinder body, 2, a cone, 3, a cover plate, 4, an air inlet pipe, 5, a sand discharge port, 6, an air outlet pipe, 7, a rotating shaft, 8 and an energy absorption block.
Detailed Description
The technical solution of the present invention will be further elaborated with reference to the drawings attached to the description. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to the attached figure 1 of the specification, the embodiment discloses a matrix type flexible desander which comprises a cylinder body 1, a cone body 2, a cover plate 3 and an air inlet pipe 4, wherein the upper end of the cone body 2 is connected with the lower end of the cylinder body 1, the cover plate 3 is arranged at the upper end of the cylinder body 1 in a sealing manner, and the bottom of the cone body 2 is provided with a sand discharge opening 5; the air inlet pipe 4 is connected with the cylinder body 1 along the tangent line of the cylinder body 1, the middle part of the cover plate 3 is connected with an air outlet pipe 6, and the air outlet pipe 6 is coaxial with the cylinder body 1; a plurality of rotating shafts 7 are arranged in the cylinder body 1, and the rotating shafts 7 are arranged in parallel to the axis of the cylinder body 1; the rotating shaft 7 is provided with a plurality of energy absorption blocks 8, and the energy absorption blocks 8 can rotate relative to the rotating shaft 7.
In this embodiment, the high-pressure natural gas that contains sand enters into the cylinder 1 district of desander through intake pipe 4, after the gas that contains sand gets into in the cylinder 1 along cylinder 1 lateral wall tangential, produce strong cyclone, the air current is the spiral and gets into downwards along cylinder 1 inner wall, big dust particle of density and liquid drop are thrown to cylinder 1 inner wall under the effect of centrifugal force, and under the effect of gravity, the desanding cylinder that cone 2 formed of inner wall whereabouts arrival bottom, rotatory air current contracts to the central flow in cylinder 1, upwards form the secondary vortex and flow through outlet duct 6 and flow out from the equipment top, thereby realize the gas-sand separation.
In this embodiment, the sand-containing high-pressure natural gas enters the cylinder 1 area of the device through the air inlet pipe 4, after the sand-containing gas enters the cylinder 1 along the wall tangential direction of the cylinder 1, the sand-containing gas rushes to the energy absorption blocks 8 arranged in a matrix, the sand in the air flow collides with the dense energy absorption blocks 8, the speed is reduced after the collision, the sand directly falls to the cone 2 at the bottom under the action of gravity, the rotating air flow shrinks in the cylinder 1 and flows to the center, a secondary vortex is formed upwards and flows out from the top of the device through the air outlet pipe 6, and therefore air-sand separation is achieved.
In this embodiment, as shown in fig. 2, the high-pressure air flow containing sand enters the cylinder 1 from the air inlet pipe 4 along the tangential direction, wherein a part of the air moves circularly along the cylinder 1; more gas enters the matrix formed by the energy absorption block 8 and the rotating shaft 7, and gravel is blocked under the combined action of collision and rotational flow.
The method specifically comprises the following steps: taking sand contained in high-pressure natural gas for research, wherein the mass of one sand is m1The velocity v of the air flow entering the desanding device1When the kinetic energy of the gravel is ek = (m)1* v1 2)/2；
The rotational inertia of an energy absorption block 8 arranged on the rotating shaft 7 and used for receiving kinetic energy is J, and the initial speed is omega1Initial rotational kinetic energy of W = (J × ω)1 2)/2
When the sand enters along with the airflow and collides with the first energy-absorbing block 8, the energy loss delta ek of the sand passes through the collision energy-absorbing block 8, and then the rotational kinetic energy of the energy-absorbing block 8 is increased or reduced to W2; meanwhile, the gravel is bounced off from the tangential direction by the rotating energy absorption block 8, the kinetic energy of the gravel is weakened once, the bounced gravel collides with the nearby energy absorption block 8 again, the process is repeated again, the speed of the gravel is weakened enough to be captured by gravity and fall into a sand collection area formed by the lower cone 2 after passing through the energy absorption area arranged in a matrix manner, and the aim of sand removal is fulfilled; the rotation of each energy absorption block 8 can be clockwise or counterclockwise, the speeds are different, gravel enters the matrix area at a high speed and then is converted into energy different from that of the energy absorption blocks 8 and then stops, and the energy of the rotating energy absorption blocks 8 is consumed and tends to be balanced in the friction process with a shaft or the scouring of gas turbulence.
If the energy absorption block 8 is fixed and can not rotate, the collision of sand to the energy absorption block 8 is in a direct cutting state, and if the sand is capturedThe velocity after acquisition is v2The force generated by the energy absorption block 8 is F = Δ ek/s, and the force generated by the collision of the fine gravel and the energy absorption block 8 is equivalent to a knife cutting the energy absorption block 8 once, and the energy absorption block 8 is cut and damaged after a long time, which is a direct cause of the damage of the pipe valve.
In the embodiment, the energy absorption block 8 is in a roller form rotating along the shaft, so that the kinetic energy of sand is directly converted into the rotation energy of the energy absorption block 8 in the process of multiple collisions, and the previous process is repeated with the next energy absorption block 8 along the tangential direction after edge collision until the energy of gravel is completely received and the gravel losing the kinetic energy is transferred into the sand collection area, thereby realizing the aim of sand removal; because the movement of the gravel and the energy absorption block 8 are mutually converted, the collision force of the gravel and the energy absorption block 8 is greatly weakened, the cutting of the gravel on the energy absorption block 8 is highly weakened, and the flexible desanding process is realized; thereby greatly prolonging the service life of the desanding equipment.
As an embodiment of the present embodiment, the rotating shaft 7 is disposed parallel to the axis of the cylinder 1. Or the rotation axis 7 is arranged parallel to the radial line of the cylinder 1. Or the rotating shaft 7 is obliquely arranged in the cylinder body 1, and the energy absorption blocks 8 on the rotating shaft can play the role of energy absorption and transduction.
As an embodiment of the present embodiment, the rotating shafts 7 are uniformly distributed in the cylindrical body 1 in the area corresponding to the connecting air inlet pipe 4. When the gas pressure is lower, the rotating shaft 7 can be arranged only in the area of the gas inlet pipe 4, so that the equipment cost is reduced, and the same sand removing function can be realized.
As an implementation manner of this embodiment, the rotating shaft 7 is uniformly distributed in all the areas except the area where the air outlet pipe 6 is connected in the cylinder body 1. When the gas pressure is high, the rotating shaft 7 is only arranged in the area of the gas inlet pipe 4, which cannot meet the requirement of performing flexible deceleration and energy absorption on sand grains carried in high-pressure gas, so that the rotating shaft 7 and the energy absorption block 8 can be arranged in all areas except the area of the gas outlet pipe 6.
As an embodiment of this embodiment, the upper end of the rotating shaft 7 is fixedly installed at the bottom of the cover plate 3 for convenience of installation, processing and maintenance.
In one embodiment of this embodiment, the bottom of the outlet pipe 6 is extended into the cylinder 1 to prevent the sand-laden high-pressure gas from being discharged from the outlet pipe 6 without being completely purified.
As an embodiment of this embodiment, the energy absorption block 8 may be a wind wheel to reduce direct collision between the energy absorption block 8 and sand, or may be a rotatable structural block with other shapes. The energy absorption block 8 is connected to the rotating shaft 7 through a bearing, so that the energy absorption block 8 can rotate conveniently, and the energy absorption block 8 can rotate after receiving sand collision, so that kinetic energy conversion is achieved, direct scouring is avoided, and the service life is prolonged. The energy absorption blocks 8 arranged in a matrix form, after sand grains collide with the energy absorption blocks 8 for many times, the energy is 0, and the sand grains can fall into a sand collection area formed by the cone 2 by means of gravity.
Claims (10)
1. The matrix type flexible sand remover comprises a cylinder body (1), a cone body (2), a cover plate (3) and an air inlet pipe (4), wherein the upper end of the cone body (2) is connected with the lower end of the cylinder body (1), the cover plate (3) is arranged at the upper end of the cylinder body (1) in a sealing way, and the bottom of the cone body (2) is provided with a sand discharge opening (5); the method is characterized in that: the air inlet pipe (4) is connected with the cylinder body (1) along the tangent line of the cylinder body (1), the middle part of the cover plate (3) is connected with an air outlet pipe (6), and the air outlet pipe (6) is coaxial with the cylinder body (1); the energy-absorbing device is characterized in that a plurality of rotating shafts (7) are arranged in the cylinder body (1), and a plurality of energy-absorbing blocks (8) are arranged on the rotating shafts (7) and can rotate relative to the rotating shafts (7).
2. The matrix-type flexible sand remover as claimed in claim 1, wherein: the rotating shaft (7) is arranged in parallel to the axis of the cylinder body (1).
3. The matrix-type flexible sand remover as claimed in claim 1, wherein: the rotating shaft (7) is arranged in parallel to the radial direction of the cylinder body (1).
4. The matrix-type flexible sand remover as claimed in claim 1, wherein: the rotating shafts (7) are uniformly distributed in the area of the cylinder body (1) correspondingly connected with the air inlet pipe (4).
5. The matrix-type flexible sand remover as claimed in claim 1, wherein: the rotating shafts (7) are uniformly distributed in all areas except the area connected with the air outlet pipe (6) in the cylinder body (1).
6. The matrix-type flexible sand remover as claimed in claim 1 or 2, wherein: the upper end of the rotating shaft (7) is fixedly arranged at the bottom of the cover plate (3).
7. The matrix-type flexible sand remover as claimed in claim 1, wherein: and part of the air outlet pipe (6) extends into the cover plate (3) and extends into the cylinder body.
8. The matrix-type flexible sand remover as claimed in claim 1, wherein: a plurality of energy absorption blocks (8) on a plurality of rotating shafts (7) are arranged in a matrix.
9. The matrix-type flexible sand remover as claimed in claim 1, wherein: the energy absorption block (8) is connected with the rotating shaft (7) through a bearing.
10. The matrix-type flexible sand remover as claimed in claim 1, wherein: the energy absorption block (8) is a wind wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120638077.7U CN214532927U (en) | 2021-03-30 | 2021-03-30 | Matrix flexible sand remover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120638077.7U CN214532927U (en) | 2021-03-30 | 2021-03-30 | Matrix flexible sand remover |
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| Publication Number | Publication Date |
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| CN214532927U true CN214532927U (en) | 2021-10-29 |
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| CN202120638077.7U Active CN214532927U (en) | 2021-03-30 | 2021-03-30 | Matrix flexible sand remover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983390A (en) * | 2021-03-30 | 2021-06-18 | 四川长仪油气集输设备股份有限公司 | Matrix type flexible sand removing equipment for natural gas well |
-
2021
- 2021-03-30 CN CN202120638077.7U patent/CN214532927U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983390A (en) * | 2021-03-30 | 2021-06-18 | 四川长仪油气集输设备股份有限公司 | Matrix type flexible sand removing equipment for natural gas well |
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