CN113083112A - Multiphase fluid adjusting device based on magnetic drive - Google Patents
Multiphase fluid adjusting device based on magnetic drive Download PDFInfo
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- CN113083112A CN113083112A CN202110333755.3A CN202110333755A CN113083112A CN 113083112 A CN113083112 A CN 113083112A CN 202110333755 A CN202110333755 A CN 202110333755A CN 113083112 A CN113083112 A CN 113083112A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
- B01F33/811—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles in two or more consecutive, i.e. successive, mixing receptacles or being consecutively arranged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/212—Measuring of the driving system data, e.g. torque, speed or power data
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Measuring Volume Flow (AREA)
Abstract
The embodiment of the invention discloses a multiphase fluid adjusting device based on magnetic drive, which comprises an electromagnetic drive structure and an overflowing structure, wherein the electromagnetic drive structure is formed by enclosing a plurality of electromagnets into a cylinder body, and at least part of the overflowing structure extends along the axial direction of the cylinder body and is arranged in the cylinder body; the flow passing structure at least comprises a shell with a flow passing cavity and a rotating assembly which is arranged in the flow passing cavity along the extension direction of the cylinder and is used for driving the shell to rotate; the rotating component is provided with a magnetic component matched with the electromagnetic driving structure in a matching way; the current directions and/or current magnitudes of the plurality of electromagnets are not all the same. The invention realizes the functions of mixing, separating, pressurizing and conveying incompatible multiphase liquid working media along with the process requirements by introducing magnetic drive, effectively improves the integral controllability by adjusting the magnetic force as the driving force, greatly improves the processing quality, reduces the operation cost and reduces the dependence on human factors.
Description
Technical Field
The embodiment of the invention relates to the technical field of multiphase fluid material processing devices, in particular to a multiphase fluid adjusting device based on magnetic drive.
Background
The flow of two incompatible liquid phases in multiphase fluid flow is widely used in industrial transportation, pharmaceutical synthesis and other production activities. The two-phase working medium in the flow has the requirements such as mixing, separation, pressurization conveying and the like along with the process requirements.
However, in the actual application process, due to the relative uniformity of the equipment, when processing multiphase mixed fluid materials with different physicochemical characteristics, it is often difficult to perform corresponding adjustment according to the actual situation, so that an operator needs to perform operation and control of the whole process by adding technical experience according to the difference of the materials. Therefore, the whole operation process has high dependence on the experience of operators, and the processed materials are easy to have certain difference due to different operators, so that the stability of each batch cannot be ensured.
Disclosure of Invention
Therefore, the embodiment of the invention provides a multiphase fluid adjusting device based on magnetic drive, which realizes the functions of mixing, separating, pressurizing and conveying incompatible multiphase liquid working media along with the process requirements by introducing the magnetic drive, effectively improves the overall controllability by adjusting the magnetic force serving as the driving force, greatly improves the processing quality, reduces the operation cost and reduces the dependence on human factors.
In order to achieve the above object, an embodiment of the present invention provides the following:
in one aspect of the embodiment of the invention, a multiphase fluid adjusting device based on magnetic drive is provided, which comprises an electromagnetic drive structure formed by enclosing a plurality of electromagnets into a cylinder body, and a flow passing structure at least partially extending along the axial direction of the cylinder body and arranged inside the cylinder body; wherein,
the overflowing structure at least comprises a shell with an overflowing cavity and a rotating assembly which is arranged in the overflowing cavity along the extending direction of the cylinder and is used for driving the shell to rotate;
the rotating assembly is provided with a magnetic assembly matched with the electromagnetic driving structure in a matching manner;
the current directions and/or current magnitudes of the electromagnets are not completely the same.
As a preferable scheme of the present invention, the rotating assembly includes a rotating shaft which is arranged in a self-rotating manner, and a plurality of fins which are arranged on an outer surface of the rotating shaft; and,
the outer surface of the fin is formed into an arc surface, and the fin extends along the axial direction of the rotating shaft in a twisting manner.
As a preferable scheme of the present invention, the magnetic assembly includes a plurality of sets of magnetic strips arranged oppositely, each set of magnetic strips is respectively located at two ends of one diameter of the rotating shaft, and the magnetic directions of each set of magnetic strips are arranged oppositely;
the multiple groups of magnetic strips are arranged at equal intervals in the circumferential direction of the rotating shaft;
the magnetic directions of at least one pair of adjacent magnetic strips are different.
As a preferable scheme of the present invention, the flow-passing structure includes a fluid settling portion located inside the cylinder and provided with the rotating assembly, and a fluid conveying portion at least partially communicated with a front end and/or a rear end of the fluid settling portion.
As a preferable scheme of the present invention, the fluid conveying section includes a feeding section located at a front end of the fluid finishing section, and the feeding section includes at least one set of feeding cavities extending along the conveying direction, and each set of feeding cavities includes a plurality of feeding pipes coaxially sleeved, and inlets of the feeding pipes are different.
As a preferable scheme of the invention, the feeding pipe in each group of feeding cavities comprises an inner pipe and an outer pipe which are sleeved from inside to outside, and the number of phases of the fluid is set to be n, so that the number of the feeding cavities is not more than n-1;
the end part of the outer pipe is communicated with the end part of the fluid arranging part, a gap is formed between one end of the inner pipe close to the fluid arranging part and the end part of the outer pipe, and the gap is formed into an extending cavity;
the multiple groups of feeding cavities are sequentially communicated and arranged along the conveying direction, and the fluid arranging parts are respectively communicated between every two adjacent feeding cavities.
As a preferable scheme of the invention, the number of the fluid arrangement parts communicated between two adjacent feeding cavities is two, and the rotation directions of the rotating assemblies in the two fluid arrangement parts are opposite.
As a preferable scheme of the present invention, the fluid conveying portion includes a discharging portion located at the rear end of the fluid arranging portion, the discharging portion includes an extension cavity and a material distributing cavity sequentially communicated from the rear end of the fluid arranging portion, the material distributing cavity includes a plurality of discharging pipes sleeved from inside to outside, and outlets of the discharging pipes are different.
In a preferred embodiment of the present invention, a pressure sensor is further disposed on an end face of the internal discharge pipe facing the fluid preparation portion;
the discharge pipe comprises an open section and an extension section which are sequentially formed from one end close to the fluid arranging part, and the opening of one end, facing the fluid arranging part, in the open section is adjustably arranged in size;
the outer wall of the open section is made of elastic materials, the open section comprises a middle shaft rod fixedly arranged and a plurality of telescopic rods extending from the middle shaft rod along the radial direction, and the extending ends of the telescopic rods abut against the elastic materials.
In a preferred embodiment of the present invention, a rotation speed sensor and a pressure sensor are electrically connected to the housing and/or the rotating shaft, and the rotation speed sensor cooperates with the pressure sensor and the magnetic strip to monitor the rotating shaft.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, the electromagnetic driving structure in the shape of a cylinder is arranged, and the rotating assembly corresponding to the electromagnetic driving structure is arranged in the overflowing cavity, so that the rotating assembly is matched with the electromagnetic driving structure to drive the whole overflowing structure to move, and further multiple processing modes of the multiphase liquid working medium are realized; meanwhile, based on the adjustment of the electric power attribute of a single electromagnet forming the electromagnetic driving structure, the targeted adjustment according to the characteristics of different liquid working media is further realized, the whole adjustment is relatively stable, the whole operation process does not need to depend on artificial observation and control, the operation efficiency and the operation quality are greatly improved, and the stability of a final product is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a schematic structural diagram of a multiphase fluid adjustment device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second multiphase flow adjustment device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third multiphase flow adjustment device provided in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fourth multiphase flow adjustment device provided in the embodiment of the present invention;
FIG. 5 is a front view of an electromagnet according to an embodiment of the present invention;
FIG. 6 is a top view of an electromagnet according to an embodiment of the present invention;
FIG. 7 is a side view of an electromagnet according to an embodiment of the present invention;
FIG. 8 is a partial front view of a multiphase fluid conditioning device in accordance with an embodiment of the present invention;
FIG. 9 is a partial side view of a multiphase fluid conditioning device in accordance with an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a first electromagnetic driving structure according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a second electromagnetic driving structure according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a third electromagnetic driving structure provided in the embodiment of the present invention;
fig. 13 is a schematic structural diagram of a fourth electromagnetic driving structure according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of a fifth electromagnetic driving structure according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a sixth electromagnetic driving structure according to an embodiment of the present invention;
FIG. 16 is a schematic structural diagram of a rotating assembly according to an embodiment of the present invention;
FIG. 17 is a partial side view of a rotating assembly provided by an embodiment of the present invention;
FIG. 18 is a schematic partial structural view of a fluid finishing section provided in accordance with an embodiment of the present invention;
FIG. 19 is a partial structural representation of an open section of a tapping pipe according to an exemplary embodiment of the present invention.
In the figure:
1-an electromagnetic drive structure; 2-an over-current structure;
11-an electromagnet;
21-a rotating shaft; 22-a fin; 23-a magnetic strip; 24-a feed pipe; 25-an extension cavity; 26-an extension cavity; 27-a discharge pipe;
271-outer wall; 272-a central shaft; 273-telescopic rod; 274-arc support.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-19, the invention provides a multiphase fluid adjusting device based on magnetic drive, which comprises an electromagnetic drive structure 1 formed into a cylinder body by enclosing a plurality of electromagnets 11, and a flow-passing structure 2 at least partially extending along the axial direction of the cylinder body and arranged inside the cylinder body; wherein,
the overflowing structure 2 at least comprises a shell with an overflowing cavity and a rotating assembly which is arranged in the overflowing cavity along the extending direction of the cylinder and is used for driving the shell to rotate;
the rotating assembly is provided with a magnetic assembly matched with the electromagnetic driving structure 1 in a matching manner;
the directions and/or magnitudes of the currents of the electromagnets 11 are not exactly the same.
Specifically, the electromagnets 11 may be disposed by winding coils on the outer sides of magnetic rods, where the magnetic rods are preferably nanocrystalline soft magnetic alloy rods (of course, the present invention is not limited thereto, and other materials such as electromagnetic steel plates may be selected according to practical situations), and the side surfaces of the magnetic rods are recessed inwards to facilitate winding and fixing of the coils (in a preferred embodiment, the winding directions of the plurality of electromagnets 11 are the same, and the coil material is preferably pure silver enameled wires); meanwhile, the two end faces of the magnetic rod can be further set to be curved surfaces which are attached to the radian of the outer end face of the shell on the flow passage structure 2, so that the stability of the structure of the whole device is further ensured. Further, there is the correspondence between the electromagnet 11 here and the magnetic stripe 23 that constitutes the magnetic component, specifically, can be that the projection of electromagnet 11 and the magnetic stripe 23 that corresponds is unanimous or on same diameter in the radial direction, realizes the matching of electromagnetic drive structure 1 and magnetic component through the setting of one-to-one correspondence to effectively realize the two cooperation and drive the pivoted effect of casing.
The above arrangement is such that the a/B surfaces in the electromagnet 11 shown in fig. 5 are the magnetic pole surfaces thereof, correspondingly, i.e., are formed as N/S poles, directly by energization. The direction of the N pole and the direction of the S pole can be changed in a targeted manner by changing the electrifying direction, and particularly in the implementation process, corresponding adjustment can be carried out by arranging a control device at the front end.
It should be further noted that in the preferred embodiment, the plurality of electromagnets 11 are arranged in a ring shape at equal intervals along the circumferential direction, and the number thereof is preferably an even number which can be divided by 360, and may be 4, 6, 8, 10, 12, 18, etc. To ensure that the flow-passing structures 2 rotate smoothly, the number thereof is further preferably not less than 4.
The diameter of the electromagnetic driving structure 1 is adjusted in a targeted manner according to the difference of the diameter of the overcurrent structure 2, and the number of the electromagnets 11 can be specifically set on the premise of considering the running stability and the cost, as shown in fig. 9 to 15, the number of the electromagnets 11 in several common pipe diameter systems provided by the present invention is provided. For example, in a specific embodiment, in the case that the diameter of a portion of the overcurrent structure 2 corresponding to the electromagnetic driving structure 1 is 50mm (i.e. model number DN50), the number of the electromagnets 11 may be specifically set to 12, and of course, the present invention is not limited thereto, and those skilled in the art can make corresponding adjustments according to actual situations.
Of course, in a specific use process, in a more preferred embodiment, the current directions in two adjacent electromagnets 11 are opposite, so that the N/S poles of the electromagnets 11 are alternately distributed, that is, the N pole and the S pole of two adjacent electromagnets 11 are arranged in opposite directions. Of course, the present invention is not limited to this, and the direction of the N pole and S pole of each electromagnet 11 may be arbitrarily adjusted according to the actual situation. For example, in one embodiment, a plurality of adjacent electromagnets 11 will pass current in the same direction, thereby providing the torque required to initiate rotation of the flow structure 2. For example, 12 electromagnets 11 under model DN50 are divided into 4 groups, that is, 3 electromagnets 11 are formed into one group, wherein one group of electromagnets 11 passes the same current, the other two groups of electromagnets 11 adjacent to the group pass the opposite current, and the current direction of the last group of electromagnets 11 is the same as that of the first group. (indicating that the number of magnetic pole pairs in the electromagnetic driving structure 1 can be conveniently increased or decreased so as to freely switch the rotation of the overcurrent structure between high rotation speed and large torque.)
The specific adjustment can be realized by switching the electrified current direction of the electromagnet 11 through a power electronic technology at a high frequency, so as to achieve the purpose of increasing the rotating speed. Further, it is preferable to use a pure silver wire as the coil of the electromagnet 11 to minimize the impedance and to rapidly demagnetize.
Specifically, the material of the entire rotating assembly may be formed by hot-melt casting of a high-strength special engineering plastic, specifically, a PEEK (polyetheretherketone) material, but of course, other suitable materials may also be used herein.
The structure of the liquid inlet bearing is specifically shown in fig. 16, and the liquid inlet bearing comprises a liquid inlet support shaft on the left side, and a double-sided sealing bearing is embedded into the liquid inlet support shaft so as to facilitate installation of a rotating part. Wherein, can also embed hall element on the feed liquor back shaft to be used for feeding back the rotational speed signal of the rotating part who is located the middle part to host computer treater.
The middle part is a rotating part and comprises a rotating shaft 21 and a plurality of groups of magnetic strips 23 which are arranged oppositely, each group of magnetic strips 23 are respectively positioned at two ends of one diameter of the rotating shaft 21, and the magnetic directions of each group of magnetic strips 23 are arranged oppositely; the multiple groups of magnetic strips 23 are arranged at equal intervals in the circumferential direction of the rotating shaft 21; at least one pair of adjacent magnetic strips 23 have different magnetic directions. Of course, although this embodiment is shown in which the magnetic directions of at least one pair of adjacent magnetic strips 23 are different, in order to enable the rotating assembly to rotate better by the arrangement of the magnetic strips 23, in the specific implementation process, further, the magnetic directions of two adjacent magnetic strips 23 are different, that is, the magnetic strips 23 with the same magnetic direction are arranged in a staggered manner in the rotating shaft 21, for example, a first magnetic strip 23, a second magnetic strip 23, a third magnetic strip 23, a fourth magnetic strip and a fifth magnetic strip … … are arranged in the rotating shaft 21 in sequence along the circumferential direction, each position corresponds to one magnetic strip 23, wherein the N pole of the magnetic strip 23 on the first magnetic strip faces the center of the rotating shaft 21, the S pole of the magnetic strip 23 on the second magnetic strip faces the center of the rotating shaft 21, the N pole of the magnetic strip 23 on the third magnetic strip faces the center of the rotating shaft 21, the S pole of the magnetic strip 23 on the fourth magnetic strip faces the center of, the N pole of the magnetic strip 23 at the fifth position faces the center … … of the rotating shaft 21
In a specific embodiment, a cross-sectional view of the embodiment is shown in fig. 17, and includes a rotating shaft 21 located in the middle, four magnetic strips 23 with two opposite magnetic pole directions are fixedly arranged inside the rotating shaft 21 as drivers, fins 22 are arranged around the outside of the rotating shaft 21, and the outer edge of each fin 22 far away from the rotating shaft 21 is close to the inner wall of a housing on the flow passing structure 2 provided with the rotating assembly, so that the flow passing structure 2 of the part provided with the rotating assembly and provided with the fins can better realize functions of flow splitting, stirring and the like. Specifically, in the DN50 model, the farthest distance between the outer edge of the fin 22 and the outer wall of the rotating shaft 21 may be 20 mm. It should be further noted that the outer surface of the fin 22 is formed into an arc surface, and the fin 22 extends along the axial direction of the rotating shaft 21 in a twisting manner (i.e. the fin 22 is formed into a spatially twisted member which extends along the axial direction of the rotating shaft 21 and has a certain extension in the circumferential direction, as shown in fig. 17, and the projection in the cross-sectional direction can show the displacement on the circumferential surface). Of course, the specific structure of the fin 22 can be set specifically according to the intensity, size and direction of the rotating field generated as required, which is not described herein again.
The right side is the export back shaft, can set up high sensitive strain sensor (for example piezo-resistor) on it and link to each other with the rotating part, realizes carrying out the check-up based on the position and the size of the stress that strain sensor receives to the host computer treater through transmitting strain force signal to the intensity and the distribution gradient of the driving magnetic field of rotating part, further guarantees that axis of rotation 21 is stable when high-speed rotation and does not take place great off-centre, simultaneously greatly reduced wearing and tearing and the emergence probability of off-axis.
In the arrangement mode, all the used bearings for connection and auxiliary support are full-sealed bearings. In the operation process, the electromagnet 11 is electrified and then provides rotating force in a manner of being matched with the magnetic strip 23, so that the whole rotating assembly is driven to rotate at least partially. Such an arrangement enables precise control of the characteristics of the electromagnets 11, such as magnetic field strength, magnetic force direction, and group distribution of the electromagnets 11, based on programmed settings of the upper computer processor, and precise control and rapid adjustment of performance, such as rotational speed. For the actual adjustment, in a further preferred embodiment, the rotation speed can be further adjusted through the rotation of the rotating component and the data feedback of the upstream-downstream differential pressure transmitter, so that the pressurized mixing and conveying of the multiphase fluid are realized, and meanwhile, in the continuous use process, the module can be further miniaturized and the axial size is reduced through the optimized design.
In a more preferred embodiment, in order to enable the flow-passing structure 2 to better achieve the adjustment effect on the fluid, the flow-passing structure 2 comprises a fluid arrangement portion located inside the cylinder and provided with the rotating assembly, and a fluid conveying portion at least partially communicated with the front end and/or the rear end of the fluid arrangement portion. The structure of the fluid transport unit will be further described below.
In one embodiment of the present invention, as shown in fig. 1, the fluid conveying portion includes a discharging portion located at the rear end of the fluid arranging portion, the discharging portion includes an extension cavity 26 and a material distributing cavity sequentially connected from the rear end of the fluid arranging portion, the material distributing cavity includes a plurality of discharging pipes 27 sleeved from inside to outside, and outlets of the discharging pipes 27 are different. In a further preferred embodiment, a fixed flow direction deflection component may be further disposed between the fluid arranging portion and the extension cavity 26, where the fixed flow direction deflection component may be the same as or similar to the structure of the rotating assembly, and the fixed flow direction deflection component also includes an extending fin, and the extending fin is disposed along the fin 22 on the rotating assembly, so that a projection connection line between the fin 22 and the extending fin in the radial direction is "z-shaped" (or may be a wave-shaped structure and the like). The arrangement enables the whole to realize the phase separation effect, and along with the high-speed rotation of the rotating assembly, the two-phase working medium is pressurized and accelerated between the rotating assembly and the cylinder body to form a high-pressure area before the two-phase working medium and the fixed flow direction deflection component. The two-phase working medium generates a regular swirling flow field through the fixed flow direction deflection part, the two-phase working medium with the density difference is provided, the two-phase working medium with the smaller density is concentrated in the center of the swirling flow field, the working medium with the larger density deviates to the edge of the swirling flow field, and the distribution ratio of the two branches can be conveniently adjusted through the adjusting valve at the downstream, so that the purpose of two-phase separation is achieved.
Furthermore, a pressure sensor is also arranged on the end face of the discharge pipe 27 located inside, which faces the fluid preparation part;
the discharge pipe 27 comprises an open section and an extension section which are sequentially formed from one end close to the fluid arranging part, and the opening of one end of the open section facing the fluid arranging part is adjustably arranged in size;
the outer wall 271 of the open section is made of an elastic material, and the open section includes a central shaft 272 fixedly disposed, and a plurality of telescopic rods 273 extending from the central shaft 272 in a radial direction, and the extending ends of the telescopic rods 273 abut against the elastic material.
Here, a rotational speed sensor and/or a pressure sensor can be connected to the rotational shaft 21 and the housing, depending on the actual situation. Specifically, a magnetostrictive speed sensor may be disposed on the support for supporting the rotating shaft 21 and the rotating shaft 21 inside the housing, a pressure sensor (synchronous pressure transmitter) may be disposed on the support for supporting the rotating shaft 21, and the magnetostrictive speed sensor may be combined with the magnetic strip 23 and/or the pressure sensor on the rotating shaft 21 to detect the working and maintenance conditions of the rotating shaft 21. In a specific arrangement mode, pressure sensors (the number is preferably not less than 4, cables of the pressure sensors can be led out from a flange through pre-manufacturing) are uniformly distributed on a supporting piece for supporting the rotating shaft 21 in an annular mode and used for detecting whether the rotating assembly has the problems of eccentric extrusion and the like during rotation; at the gap of the pressure sensor arrangement, a magnetostrictive sensor (a magnetostrictive sensor may be further arranged between the magnetic strips 23 provided on the rotating shaft 21) is arranged, senses the rotation of the rotating shaft 21 and the magnetic strips 23 in the fins 22, and provides rotational speed data.
Through the sequential arrangement of the opening section and the extension section, the relative density of the fluid can be correspondingly obtained according to the pressure sensed by the pressure sensor, and whether the fluid in the local area is the fluid needing to be collected can be further judged, so that the relatively accurate phase separation collection of the fluid can be realized through the detection of the pressure. Further, the size of the opening can be adjusted by the expansion and contraction of the expansion link 273 in a targeted manner according to the magnitude of the pressure. Of course, further, the end of the telescoping rod 273 near the outer wall 271 abuts the outer wall 271 via the arc 274.
In another embodiment of the present invention, as shown in fig. 2-4, the fluid conveying section includes a feeding section located at the front end of the fluid finishing section, and the feeding section includes at least one group of feeding cavities extending along the conveying direction, and each group of feeding cavities includes a plurality of feeding pipes 24 coaxially sleeved, and the inlets of each feeding pipe 24 are different.
In a further preferred embodiment, the feeding pipe 24 in each group of feeding cavities comprises an inner pipe and an outer pipe which are sleeved from inside to outside, and the number of phases of the fluid is set to be n, so that the number of the feeding cavities is not more than n-1;
the end part of the outer pipe is communicated with the end part of the fluid arrangement part, a gap is formed between one end of the inner pipe close to the fluid arrangement part and the end part of the outer pipe, and the gap is formed into an extension cavity 25;
the multiple groups of feeding cavities are sequentially communicated and arranged along the conveying direction, and the fluid arranging parts are respectively communicated between every two adjacent feeding cavities.
The inner pipe and the outer pipe are arranged in a mode that two-phase fluid is conveyed through different pipelines and is mixed, on the basis, the multiphase fluid can be synchronously mixed in a mode that the plurality of feeding pipes 24 are matched, and the fluid finishing parts are respectively arranged between the two adjacent feeding pipes 24, so that the fluid can be effectively mixed.
In order to better achieve a higher blending effect, the number of the two adjacent fluid sorting parts communicated between the feeding cavities is two, and the rotating directions of the rotating assemblies in the two fluid sorting parts are opposite.
Specifically, in one embodiment, the number of fluid collations used for mixing is two, and as shown in FIG. 2, the direction of rotation of the fins 22 on the two fluid collations are arranged in mirror image (clockwise/counterclockwise) opposition. The two fins 22 rotate oppositely to realize differential rotation, so that the two-phase or multi-phase working medium to be mixed is strongly sheared and liquid drops are crushed. Meanwhile, the relative rotation speed difference of the two fluid sorting parts can be adjusted, and the purpose of adjusting the flow velocity of the working medium in the pipeline can be achieved within a certain range.
In another embodiment, if the mixed material is three-phase or more, as shown in fig. 3, if the process requires mixing in sequence, then two working fluids are mixed gradually, thereby achieving the purpose of multi-phase mixing.
In another embodiment, if there is no sequence of working media in the mixing process, as shown in fig. 4, and the manufacturing cost is considered, a sleeve injection method may be used for feeding (i.e., one feeding cavity includes no less than 3 feeding pipes 24 sleeved in sequence), so that multiple working media can be synchronously mixed.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The multiphase fluid adjusting device based on magnetic drive is characterized by comprising an electromagnetic drive structure (1) formed by enclosing a plurality of electromagnets (11) into a cylinder body, and a flow passing structure (2) at least partially arranged in the cylinder body in an extending mode along the axial direction of the cylinder body; wherein,
the overflowing structure (2) at least comprises a shell with an overflowing cavity and a rotating assembly which is arranged in the overflowing cavity along the extending direction of the cylinder and is used for driving the shell to rotate;
the rotating assembly is provided with a magnetic assembly matched with the electromagnetic driving structure (1) in a matching manner;
the current directions and/or current magnitudes of the electromagnets (11) are not completely the same.
2. The multiphase fluid adjustment device as recited in claim 1, wherein the rotating assembly comprises a rotating shaft (21) which is rotatably arranged, and a plurality of fins (22) which are arranged on the outer surface of the rotating shaft (21); and,
the outer surface of the fin (22) is formed into an arc surface, and the fin (22) extends along the axial direction of the rotating shaft (21) in a twisted manner.
3. The multiphase fluid adjusting device as claimed in claim 2, wherein the magnetic assembly comprises a plurality of sets of oppositely arranged magnetic strips (23), each set of magnetic strips (23) is respectively located at two ends of one diameter of the rotating shaft (21), and the magnetic directions of each set of magnetic strips (23) are oppositely arranged;
the multiple groups of magnetic strips (23) are arranged at equal intervals in the circumferential direction of the rotating shaft (21);
at least one pair of adjacent magnetic strips (23) have different magnetic directions.
4. A multiphase fluid flow regulating device according to any of claims 1-3, characterized in that the flow-through structure (2) comprises a fluid preparation portion located inside the cylinder and provided with the rotating assembly, and a fluid delivery portion at least partially communicated with the front end and/or the rear end of the fluid preparation portion.
5. The multiphase fluid adjusting device as recited in claim 4, wherein the fluid conveying part comprises a feeding part located at the front end of the fluid finishing part, the feeding part comprises at least one group of feeding cavities extending along the conveying direction, each group of feeding cavities comprises a plurality of feeding pipes (24) coaxially sleeved, and the inlet of each feeding pipe (24) is different.
6. The multiphase fluid adjusting device of claim 5, wherein the feeding pipe (24) in each group of feeding cavities comprises an inner pipe and an outer pipe which are sleeved from inside to outside, and the number of the feeding cavities is not more than n-1 by setting the phase number of the fluid to be n;
the end part of the outer pipe is communicated with the end part of the fluid arrangement part, a gap is formed between one end of the inner pipe close to the fluid arrangement part and the end part of the outer pipe, and the gap is formed into an extension cavity (25);
the multiple groups of feeding cavities are sequentially communicated and arranged along the conveying direction, and the fluid arranging parts are respectively communicated between every two adjacent feeding cavities.
7. A multiphase fluid adjustment device according to claim 6, wherein the number of the fluid arrangement parts communicated between two adjacent feeding cavities is two, and the rotation directions of the rotating assemblies in the two fluid arrangement parts are opposite.
8. The multiphase fluid adjusting device of claim 4, wherein the fluid conveying part comprises a discharging part located at the rear end of the fluid arranging part, the discharging part comprises an extension cavity (26) and a material distributing cavity which are sequentially communicated from the rear end of the fluid arranging part, the material distributing cavity comprises a plurality of discharging pipes (27) which are sleeved from inside to outside, and the outlets of the discharging pipes (27) are different.
9. The multiphase fluid regulation device of claim 8, wherein a pressure sensor is further arranged on the end face of the internal tapping pipe (27) facing the fluid preparation section;
the discharge pipe (27) comprises an open section and an extension section which are sequentially formed from one end close to the fluid arranging part, and the opening of one end of the open section facing the fluid arranging part is adjustably arranged in size;
the outer wall (271) of the open section is made of elastic material, the open section comprises a middle shaft rod (272) fixedly arranged and a plurality of telescopic rods (273) extending from the middle shaft rod (272) in the radial direction, and the extending ends of the telescopic rods (273) abut against the elastic material.
10. The multiphase fluid regulating device of claim 2, wherein a rotation speed sensor and a pressure sensor are electrically connected to the housing and/or the rotating shaft (21), and the rotation speed sensor cooperates with the pressure sensor and the magnetic strip (23) to monitor the rotating shaft (21).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114217550A (en) * | 2021-11-25 | 2022-03-22 | 华中科技大学 | Fluid storage and conveying system capable of being triggered in real time and application thereof |
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| CN113083112B (en) | 2022-05-17 |
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