CN210240734U - Magnetostrictive ultrasonic fluid valve - Google Patents
Magnetostrictive ultrasonic fluid valve Download PDFInfo
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- CN210240734U CN210240734U CN201920743884.8U CN201920743884U CN210240734U CN 210240734 U CN210240734 U CN 210240734U CN 201920743884 U CN201920743884 U CN 201920743884U CN 210240734 U CN210240734 U CN 210240734U
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Abstract
The utility model discloses a magnetostrictive ultrasonic fluid valve, which comprises a valve body, an upper end cover and a lower end cover, wherein the right side of the valve body is provided with a fluid outlet, the center of the upper end cover is provided with a fluid inlet, a fluid cavity is arranged between the valve body and the double end cover, an ultrasonic cavity is arranged between the valve body and the lower end cover, the ultrasonic cavity sequentially comprises a T-shaped plugging nozzle, an amplitude transformer, a magnetostrictive material, a permanent magnet and an alternating current coil from inside to outside, the T-shaped plugging nozzle passes through a central conical surface hole of the valve body 1, the lower surface of the T-shaped plugging nozzle is provided with an annular magnetic fluid cavity, a magnetic fluid is added in the magnetic fluid cavity, a sealing coil is embedded on the outer surface of the magnetic fluid, an air gap flow channel is arranged between the magnetic fluid cavity and the sealing coil, the utility model discloses a fluid valve device has compact structure, adopts an ultrasonic vibration mode to drive the fluid valve, adopts a controllable magnetic fluid structural mode to assist, has better application value in the environment of high-pressure fluid.
Description
Technical Field
The invention relates to a magnetostrictive ultrasonic fluid valve.
Background
Valve devices are a widely used class of basic components in industrial applications, such as gas valves, liquid valves, high-speed valves, precision flow valves, injection valves, etc., which are found everywhere in our daily lives. At present, industrial application puts forward harsh performance requirements on application of a valve structure, such as miniaturization, high-performance, intelligentization, complex working environment application, high reliability and the like, and how to effectively realize the design of the miniature high-performance and high-reliability valve structure is a hot problem for industrial application discussion.
At present, aiming at the requirements of miniaturization, high performance, high reliability and the like of a valve structure, the valve structure is generally designed by selecting intelligent materials with small size and high performance, but the valve design by selecting the intelligent materials also has the inherent problems, such as small deformation of piezoelectric materials, the need of designing a displacement amplification structure, large-current excitation of magnetostrictive materials, difficulty in miniaturization and the like. At present, few fluid valves based on intelligent materials can work efficiently in large-pressure fluid occasions.
Aiming at the problem that industrial application requires small valve body structure, high performance and high reliability, the invention provides a magnetostrictive ultrasonic fluid valve suitable for a high-pressure environment.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a magnetostrictive ultrasonic fluid valve.
A magnetostrictive ultrasonic fluid valve comprises a valve body, an upper end cover and a lower end cover, wherein a fluid outlet is formed in the right side of the valve body, a fluid inlet is formed in the center of the upper end cover, a fluid cavity is formed between the valve body and the upper end cover, an ultrasonic cavity is formed between the valve body and the lower end cover, the ultrasonic cavity is formed from top to bottom and is sequentially provided with a T-shaped plugging nozzle, an amplitude transformer, magnetostrictive materials, a permanent magnet and an alternating current coil from inside to outside, the T-shaped plugging nozzle is welded on the upper surface of the amplitude transformer, the lower surface of the amplitude transformer is welded on the lower surface of the magnetostrictive materials, the magnetostrictive materials are bonded on the upper surface of the permanent magnet, a central conical surface hole of the T-shaped plugging nozzle penetrating through the valve body is formed in the lower surface of the T-shaped plugging nozzle, a magnetic fluid cavity is added with a magnetic fluid.
Preferably, the valve body, the upper end cover, the lower end cover and the amplitude transformer are made of high-strength high-permeability 10# steel, the T-shaped plugging nozzle is made of non-magnetic-conductivity structural steel, the magnetostrictive material is made of TbDyFe alloy with large magnetostrictive effect, the permanent magnet is a ferromagnetic aluminum-iron-boron permanent magnet, the magnetic fluid cavity is made of a high-elasticity rubber film, and the magnetic fluid is made of MRF 132-DG.
Preferably, when the T-shaped nozzle leaves the valve body, the direction of a positive main magnetic field generated by electrifying the alternating current coil is consistent with the direction of a magnetic field provided by the permanent magnet, the direction of the magnetic field provided by the sealing coil is opposite to the direction of the magnetic field provided by the permanent magnet, and a high-frequency alternating current small current of 20kHz flows through the alternating current coil; when the T-shaped plugging nozzle is attached to the valve body, direct current heavy current flows in the sealing coil, when the T-shaped plugging nozzle and the valve body are in an attached state or a separated state, the action of the sealing coil is 0.5s earlier than that of the alternating current coil, namely the T-shaped plugging nozzle and the valve body are in a separated state, the sealing coil is powered off firstly, the alternating current coil is powered on again, and when the valve is closed, the sealing coil is powered on firstly, and the alternating current coil is powered off again.
Preferably, the T-shaped plugging nozzle is matched with the valve body by a spherical conical surface, the T-shaped plugging nozzle is matched with the magnetic fluid cavity by a small gap, the width of an air gap runner ring between the magnetic fluid cavity and the sealing coil is 0.5-1mm, the sealing coil is encapsulated in the cavity of the valve body by epoxy, and the area ratio of the upper surface to the lower surface of the amplitude transformer is 1: 2.
preferably, when the T-shaped plugging nozzle is attached to the valve body, the valve body and the T-shaped plugging nozzle are sealed in a mechanical mode of a spherical conical surface, a magnetic fluid cavity film is arranged on the outer wall of the magnetic fluid cavity, the sealing coil is electrified to generate electromagnetic force to enable the magnetic fluid to move towards the direction of the sealing coil, the magnetic fluid cavity film is extruded to enable the magnetic fluid cavity film to expand outwards, an air gap flow channel between the magnetic fluid cavity and the sealing coil disappears, and the T-shaped plugging nozzle is attached to the valve body again.
Preferably, at the moment that the T-shaped plugging nozzle is separated from the valve body, the sealing coil is powered off 0.5s in advance, an air gap flow channel exists between the magnetic fluid cavity and the sealing coil, the alternating current coil is powered on to generate an alternating magnetic field, the alternating magnetic field acts on the magnetostrictive material to generate ultrasonic vibration, ultrasonic energy is transmitted to the T-shaped plugging nozzle through the amplitude transformer, high-frequency vibration is generated on the T-shaped plugging nozzle in the axial direction, and when the T-shaped plugging nozzle is separated from the valve body, the fluid cavity flows to the outlet direction through the ultrasonic cavity.
Preferably, when the T-shaped plugging nozzle is attached to the valve body, the alternating current coil is still electrified, the sealing coil is electrified in advance for 0.5s at the moment, the magnetic fluid expands outwards, the air gap flow channel is extruded to be closed, the magnetic fluid can be locked by the magnetic fluid due to the magnetic field generated by the sealing coil, the damping effect is generated on the axial vibration of the T-shaped plugging nozzle, the alternating current coil is powered off after 0.5s, the T-shaped plugging nozzle is rapidly stopped under the damping effect of the magnetic fluid, and meanwhile, the T-shaped plugging nozzle is attached to the valve body.
Compared with the prior art, the invention has the following beneficial effects:
1) the magnetostrictive material with high thrust and high energy conversion efficiency is selected as the driving element of the valve body switch, so that the small-sized high-performance design of the valve body structure is facilitated; meanwhile, in order to solve the problem of dependence of the deformation of the magnetostrictive material on a large exciting current and a position amplification structure, an ultrasonic vibration mode is adopted, an amplitude transformer structure is used in an auxiliary mode, the axial displacement when the valve body structure is opened and closed is greatly increased, and therefore the opening and closing design of a small-sized and large-flow valve structure is achieved.
2) The magnetostrictive ultrasonic fluid valve adopts the magnetic fluid structure to perform auxiliary sealing, and the action time of the sealing coil is earlier than that of the alternating current excitation coil, so that the problem of poor sealing caused by multi-mode under ultrasonic vibration is effectively solved, and the problem of difficult sealing caused by reserved ultrasonic in the closing process of the valve body structure can be realized.
3) The magnetostrictive ultrasonic fluid valve has the advantages of compact structure, simple processing, diversified design choices of the fluid inlet and the fluid outlet, large flow when the valve body structure is opened, high-strength sealing and high reliability when the valve body structure is closed, and easy engineering application.
Drawings
FIG. 1 is a front view of a magnetostrictive ultrasonic fluid valve;
FIG. 2 is an enlarged fragmentary view of a magnetostrictive ultrasonic fluid valve in a closed state;
FIG. 3 is an enlarged view of a portion of the magnetostrictive ultrasonic fluid valve in the on state;
Detailed Description
The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.
As shown in fig. 1 to 3, a magnetostrictive ultrasonic fluid valve comprises a valve body 1, an upper end cover 2 and a lower end cover 3, wherein a fluid outlet is arranged on the right side of the valve body 1, a fluid inlet is arranged in the center of the upper end cover 2, a fluid chamber 4 is arranged between the valve body 1 and the upper end cover 2, an ultrasonic chamber 5 is arranged between the valve body 1 and the lower end cover 3, the ultrasonic chamber 5 is sequentially provided with a T-shaped plug 6, a variable amplitude rod 7, a magnetostrictive material 8, a permanent magnet 9 and an alternating current coil 10 from inside to outside from top to bottom, the T-shaped plug 6 is welded on the upper surface of the variable amplitude rod 7, the lower surface of the variable amplitude rod 7 is welded on the lower surface of the magnetostrictive material 8, the magnetostrictive material 8 is adhered on the upper surface of the permanent magnet 9, the T-shaped plug 6 penetrates through a central conical hole of the valve body 1, an annular magnetic fluid chamber 11 is arranged on the lower surface of the T-shaped plug 6, a magnetic, an air gap flow channel 14 is arranged between the magnetic fluid cavity 11 and the sealing coil 13.
The valve body 1, the upper end cover 2, the lower end cover 3 and the amplitude transformer 7 are made of high-strength high-permeability 10# steel, the T-shaped plugging mouth 6 is made of non-magnetic-permeability structural steel, the magnetostrictive material 8 is made of TbDyFe alloy with large magnetostrictive effect, the permanent magnet 9 is a strong-magnetic aluminum-iron-boron permanent magnet, the magnetic fluid cavity 11 is made of a high-elastic rubber film, and the magnetic fluid 12 is made of MRF 132-DG.
The T-shaped plugging mouth 6 is matched with the valve body 1 by adopting a spherical conical surface, the T-shaped plugging mouth 6 is matched with the magnetic fluid cavity 11 by a small gap, the width of a ring of an air gap runner 14 between the magnetic fluid cavity 11 and the sealing coil 13 is 0.5-1mm, the sealing coil 13 is encapsulated in the cavity of the valve body 1 by epoxy, and the upper surface area ratio and the lower surface area ratio of the amplitude transformer 7 are 1: 2.
when the T-shaped nozzle 6 leaves the valve body 1, the direction of a positive main magnetic field generated by electrifying the alternating current coil 10 is consistent with the direction of a magnetic field provided by the permanent magnet 9, the direction of the magnetic field provided by the sealing coil 13 is opposite to the direction of the magnetic field provided by the permanent magnet 9, and 20kHz high-frequency alternating current small current flows in the alternating current coil 10; when the T-shaped plugging nozzle 6 is attached to the valve body 1, a large direct current flows through the sealing coil 13, when the T-shaped plugging nozzle 6 and the valve body 1 are in an attached or separated state, the action of the sealing coil 13 is 100.5 seconds earlier than that of the alternating current coil, namely the T-shaped plugging nozzle 6 and the valve body 1 are in a separated state, the sealing coil 13 is powered off firstly, the alternating current coil 10 is powered on secondly, the sealing coil 13 is powered on firstly at the moment of closing the valve, and the alternating current coil 10 is powered off secondly.
When the T-shaped plugging nozzle 6 is attached to the valve body 1, the valve body 1 and the T-shaped plugging nozzle 6 are sealed in a mechanical mode of a spherical conical surface, a magnetic fluid cavity membrane is arranged on the outer wall of the magnetic fluid cavity 11, the sealing coil 13 is electrified to generate electromagnetic force to enable the magnetic fluid 12 to move towards the direction of the sealing coil 13, the magnetic fluid cavity 11 is squeezed to enable the magnetic fluid cavity membrane to expand outwards, an air gap flow channel 14 between the magnetic fluid cavity 11 and the sealing coil 13 disappears, and the T-shaped plugging nozzle 6 is attached to the valve body 1 again.
At the moment that the T-shaped plugging nozzle 6 is separated from the valve body 1, the sealing coil 13 is powered off 0.5s in advance, an air gap flow channel 14 exists between the magnetic fluid cavity 11 and the sealing coil 13 at the moment, the alternating current coil 10 is powered on to generate an alternating magnetic field, the alternating magnetic field acts on the magnetostrictive material 8 to generate ultrasonic vibration, the ultrasonic energy is transmitted to the T-shaped plugging nozzle 6 through the amplitude transformer 7, the T-shaped plugging nozzle 6 generates high-frequency vibration in the axial direction, and when the T-shaped plugging nozzle 6 is separated from the valve body 1, the fluid cavity 4 flows to the outlet direction through the ultrasonic cavity 5.
When the T-shaped plugging nozzle 6 is attached to the valve body 1, the alternating current coil 10 is still electrified, the sealing coil 13 is electrified in advance for 0.5s at the moment, the magnetic fluid 12 is enabled to expand outwards to extrude the air gap flow channel 14 to be closed, the magnetic fluid 12 can be locked with the T-shaped plugging nozzle 6 through the magnetic field generated by the sealing coil 13, the damping effect is generated on the axial vibration of the T-shaped plugging nozzle 6, the alternating current coil 10 is powered off after 0.5s, the T-shaped plugging nozzle 6 is rapidly stopped under the damping effect of the magnetic fluid 12, and meanwhile, the T-shaped plugging nozzle 6 is attached to the valve body 1.
Claims (4)
1. A magnetostrictive ultrasonic fluid valve, characterized by: comprises a valve body (1), an upper end cover (2) and a lower end cover (3), wherein a fluid outlet is arranged on the right side of the valve body (1), a fluid inlet is formed in the center of the upper end cover (2), a fluid cavity (4) is formed between the valve body (1) and the upper end cover (2), an ultrasonic cavity (5) is formed between the valve body (1) and the lower end cover (3), the ultrasonic cavity (5) is sequentially provided with a T-shaped plug nozzle (6), an amplitude transformer (7), a magnetostrictive material (8), a permanent magnet (9) and an alternating current coil (10) from inside to outside from top to bottom, the T-shaped plug nozzle (6) is welded on the upper surface of the amplitude transformer (7), the lower surface of the amplitude transformer (7) is welded on the lower surface of the magnetostrictive material (8), the magnetostrictive material (8) is bonded on the upper surface of the permanent magnet (9), a central plug cone hole of the T-shaped plug nozzle (6) penetrating through the valve body (1) is formed, and an annular magnetic plug nozzle (, a magnetofluid (12) is added in the magnetofluid cavity (11), a sealing coil (13) is embedded on the outer surface of the magnetofluid (12), and an air gap flow channel (14) is arranged between the magnetofluid cavity (11) and the sealing coil (13).
2. A magnetostrictive ultrasonic fluid valve according to claim 1, characterized in that: the valve body (1), the upper end cover (2), the lower end cover (3) and the amplitude transformer (7) are made of high-strength high-permeability 10# steel, the T-shaped plugging nozzle (6) is made of non-magnetic conductive structural steel, the magnetostrictive material (8) is made of TbDyFe alloy with a large magnetostrictive effect, the permanent magnet (9) is a strong-magnetic aluminum-iron-boron permanent magnet, the magnetic fluid cavity (11) is made of a high-elastic rubber film, and the magnetic fluid (12) is made of MRF 132-DG.
3. A magnetostrictive ultrasonic fluid valve according to claim 1, characterized in that: t type stifled mouth (6) and valve body (1) between adopt spherical conical surface cooperation, for little clearance fit between T type stifled mouth (6) and magnetic fluid chamber (11), air gap runner (14) ring width between magnetic fluid chamber (11) and sealing coil (13) is 0.5-1mm, sealing coil (13) pass through the epoxy embedment in the cavity of valve body (1), the upper and lower surface area ratio of amplitude transformer (7) is 1: 2.
4. a magnetostrictive ultrasonic fluid valve according to claim 1, characterized in that: when T type stifled mouth (6) and valve body (1) laminating, valve body (1) and T type stifled mouth (6) adopt the mechanical system of spherical conical surface to seal, be provided with magnetic fluid chamber membrane on the outer wall of magnetic fluid chamber (11), sealed coil (13) circular telegram produces electromagnetic force and makes magnetic fluid (12) to sealed coil (13) direction motion, extrudes magnetic fluid chamber (11) and makes magnetic fluid chamber membrane outwards expand, leads to air gap runner (14) between magnetic fluid chamber (11) and sealed coil (13) to disappear, T type stifled mouth (6) and valve body (1) laminating once more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920743884.8U CN210240734U (en) | 2019-05-22 | 2019-05-22 | Magnetostrictive ultrasonic fluid valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920743884.8U CN210240734U (en) | 2019-05-22 | 2019-05-22 | Magnetostrictive ultrasonic fluid valve |
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| CN210240734U true CN210240734U (en) | 2020-04-03 |
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| CN201920743884.8U Active CN210240734U (en) | 2019-05-22 | 2019-05-22 | Magnetostrictive ultrasonic fluid valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067888A (en) * | 2019-05-22 | 2019-07-30 | 杭州沃凌的机电有限公司 | A kind of magnetostrictive ultrasonic fluid valve |
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2019
- 2019-05-22 CN CN201920743884.8U patent/CN210240734U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067888A (en) * | 2019-05-22 | 2019-07-30 | 杭州沃凌的机电有限公司 | A kind of magnetostrictive ultrasonic fluid valve |
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