CN109707894B - Halbach magnetic moment array transmission self-sealing main valve - Google Patents
Halbach magnetic moment array transmission self-sealing main valve Download PDFInfo
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- CN109707894B CN109707894B CN201910037598.4A CN201910037598A CN109707894B CN 109707894 B CN109707894 B CN 109707894B CN 201910037598 A CN201910037598 A CN 201910037598A CN 109707894 B CN109707894 B CN 109707894B
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Abstract
The invention discloses a halbach magnetic moment array transmission self-sealing main valve, which comprises a bearing, wherein a bearing frame of the bearing is fixed on a pipeline; a worm wheel driven by a worm is arranged close to the outer ring of the bearing, a plurality of first permanent magnets are fixed on the inner ring of the worm wheel, and the first permanent magnets are arranged in a halbach magnetic matrix mode; a valve disc is arranged close to the bearing inner ring, a plurality of second permanent magnets are fixed on the valve disc outer ring, the second permanent magnets are arranged according to a halbach magnetic moment array mode, and the second permanent magnets and the first permanent magnets form a magnetic transmission structure; a runner hole is formed in the valve disc; on the downstream side of the pipeline, a sealing gasket is arranged on the valve disc, a contact backing plate is arranged in parallel adjacent to the sealing gasket, and the sealing gasket is in fit sealing with the contact backing plate under the condition of sufficient water pressure. The device has simple structure and good sealing performance, and can basically realize friction-free transmission among structures, thereby prolonging the service life of the valve.
Description
Technical Field
The invention relates to the field of valves, in particular to a Halbach magnetic moment array transmission self-sealing main valve.
Background
The valve is an important control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like. The existing valves are mainly used for stopping, adjusting, stopping and guaranteeing engineering safety and are generally divided into automatic valves and driving valves, wherein the driving valves (gate valves, stop valves, ball valves, butterfly valves and the like) are used for adjusting the pressure, flow and direction of media in a pipeline by a driving device. In the valve technology, the self-sealing valve occupies an indispensable position, so that a fluid pipeline can provide a precise control process for fluid delivery; the automatic valve is to realize the opening and closing of the valve action by an automatic control system, thereby realizing the control of the valve on the fluid.
However, the conventional common valve has obvious defects in a driving structure, is complex in structure and difficult in control process, and has obvious hidden troubles due to insufficient sealing pressure and insufficient sealing pressure of a pipeline at the valve. The problems can be mainly summarized in the following aspects: 1) The existing valve has complex sealing structure, high engineering manufacturing difficulty and high cost; 2) The valve is additionally provided with a driving part which is larger, so that the later examination and maintenance are not facilitated; 3) The part of the transmission structure of the valve is in rigid direct contact, friction and abrasion are easy to generate, and the service life of the valve is short. Disclosure of Invention
The invention aims to solve the technical problem of providing a halbach magnetic matrix transmission self-sealing main valve, which solves the problems of over-complex sealing structure and the like of the existing valve. The device utilizes the characteristic of water flow at the valve of the pressure pipeline, has larger water pressure in the incoming flow direction and smaller water pressure in the outlet direction, ensures that the water flow realizes self-sealing when the valve channel is closed, and has good sealing effect. Meanwhile, the problem that friction and abrasion are easy to occur to part of the structure of the main valve is solved.
In order to solve the technical problems, the invention adopts the following technical scheme: the halbach magnetic moment array transmission self-sealing main valve comprises a bearing consisting of bearing balls and a bearing bracket, wherein the bearing bracket is fixed on a pipeline; a worm wheel driven by a worm is arranged close to the outer ring of the bearing, a plurality of first permanent magnets are fixed on the inner ring of the worm wheel, and the first permanent magnets are arranged in a halbach magnetic matrix mode; a valve disc is arranged close to the bearing inner ring, a plurality of second permanent magnets are fixed on the valve disc outer ring, the second permanent magnets are arranged according to a halbach magnetic moment array mode, and the second permanent magnets and the first permanent magnets form a magnetic transmission structure;
the valve disc is provided with a flow passage hole, and when the self-sealing main valve is fully opened, the flow passage hole is just communicated with a pipeline; a sealing gasket is arranged on the valve disc at the downstream side of the pipeline, and a contact backing plate is arranged in parallel adjacent to the sealing gasket; under the condition of sufficient water pressure, the sealing gasket is attached and sealed with the contact base plate; the first permanent magnet, the bearing ball, the bearing bracket, the contact backing plate and the worm gear in the main valve are fixed on the same linkage part, and the second permanent magnet, the valve disc and the sealing gasket are fixed on the other linkage part; the first permanent magnet and the second permanent magnet adopt different-name magnetic pole arrangement of the same halbach magnetic matrix, and when the first permanent magnet rotates, the second permanent magnet rotates together.
Further, the pipes on the upstream side or the downstream side are connected by flanges.
Further, a gasket for sealing is arranged at the joint of the flange plates.
Further, the flange plate is fixed through bolts.
Further, the bearing frame is fixed to the pipeline by welding.
Further, the first permanent magnet, the bearing ball, the bearing bracket, the contact pad and the worm gear in the main valve are fixed on the same linkage part, and the second permanent magnet, the valve disc and the sealing pad are fixed on the other linkage part.
Compared with the prior art, the invention has the beneficial effects that: 1) The rotating mechanism of the device adopts a rolling bearing, has compact structure, small friction resistance and small power consumption, and is easy to start the valve. 2) In the device, the arrangement structure of the first permanent magnet of the outer ring and the second permanent magnet of the inner ring applies the principle and technology of the halbach magnetic moment array permanent magnet, and the magnetic energy of the permanent magnets can be utilized to the maximum extent. 3) The device designs a permanent magnet magnetic transmission structure in the transmission structure, namely, the outer ring permanent magnet drives the inner ring permanent magnet to operate, the structure is simple, the number of component members is small, the installation is convenient, and the friction-free transmission between the structures can be basically realized, so that the service life of the valve is prolonged. 4) Two contact pads that establish in this device make full use of water pressure realize closely laminating and breaking away from, form self sealss structure, self-sealing leak protection performance is good.
Drawings
FIG. 1 is a cross-sectional elevation view of a halbach moment array driven self-sealing main valve of the device.
Fig. 2 is a side cross-sectional view of the halbach moment array driven self-sealing main valve of the device.
In the figure: 1-a first permanent magnet; 2-bearing balls; 3-a second permanent magnet; 4-piping; 5-valve disc; 6-a flange plate; 7-a gasket; 8-bearing frames; 9-a gasket; 10-contact pad; 11-bolts; 13-runner holes; 14-a bearing; 15-worm wheel; 16-worm.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
The device comprises the following components: a first permanent magnet 1, a bearing ball 2 and a second permanent magnet 3; the functions of the pipeline 4, the valve disc 5, the flange plate 6, the gasket 7, the bearing bracket 8, the sealing gasket 9, the contact base plate 10, the bolt 11, the runner hole 13, the bearing 14, the worm wheel 15 and the worm 16 are as follows:
1. first permanent magnet of outer lane: the magnetic transmission structure is formed by arranging a plurality of permanent magnets on an outer ring in a halbach magnetic moment array mode, and forming a magnetic transmission structure with a second permanent magnet 3 of the inner ring;
2. bearing ball: which is one of the components of the bearing 14 in the present device;
3. a second permanent magnet of the inner ring: the magnetic valve is positioned on a valve disc 5 and is formed by arranging a plurality of permanent magnets on an outer ring in a halbach magnetic moment array mode, and the plurality of permanent magnets and a first permanent magnet 1 form a magnetic transmission structure;
4. and (3) a pipeline: the water flows along the pipeline 4 according to the direction shown in fig. 1, and plays a role in restricting the water flow;
5. valve disc: the device is a main body structure for blocking water flow, and a runner hole 13 is formed in the main body structure;
6. and a flange plate: the flange plate combination is formed by the device body and other flange plates together and is used for flange connection of the device body and the pipeline 4;
7. gasket: which is located between the flanges 6 for sealing the flanges;
8. bearing frame: for supporting the bearing 14;
9. and (3) a sealing gasket: which contacts and fits with the contact pad 10 in the presence of sufficient water pressure to form a seal;
10. contact backing plate: the sealing gasket is contacted and bonded with the sealing gasket 9 under the condition of enough water pressure to form a seal;
11. and (3) a bolt: the flange plates 6 are fixedly connected with each other;
13. flow passage hole: which is located on the valve disc 5 for the flow of fluid when the valve is open, sized to cooperate with the conduit 4;
14. and (3) bearing: which is mounted on the pipe 4 for supporting the worm wheel 15;
15. worm wheel: the first permanent magnet 1 of the outer ring is arranged on the structure;
16. a worm: which together with the worm wheel 15 constitutes a worm drive, which is the driving member in the system.
The first permanent magnet 1, the bearing ball 2, the bearing bracket 8, the contact backing plate 10 and the worm gear 15 in the main valve are fixed on the same linkage part, the second permanent magnet 3, the valve disc 5 and the sealing gasket 9 are fixed on the other linkage part, and the whole device is fixed in the section of the pipeline 4 by the flange 6. One pair of flange plates comprises two flange plates, a gasket 7 is arranged between the two flange plates, and a bolt 11 passes through the two flange plates to fasten.
The working principle of the device is as follows: the magnetic transmission principle of the attraction of the different-name magnetic poles is utilized, the non-contact type hydraulic main valve is opened and closed, and then the actual working condition is combined, so that the characteristics of high incoming flow pressure and low outlet pressure of the hydraulic main valve are utilized, the self-sealing of water flow when the valve is closed is realized, the valve structure is greatly simplified, and the design cost is reduced.
When the hydropower station needs to cut off the main valve to flow, the main valve is controlled to cut off the water flow. When the device cuts off water flow, the worm 16 is driven to rotate by the prime motor, the helical teeth on the worm 16 are meshed with the gears on the worm wheel 15, the first permanent magnets 1 distributed according to halbach are arranged on the worm wheel 15, and the first permanent magnets 1 can rotate under the drive of the worm 16. The bearing 14 comprises a bearing bracket 8 for supporting and bearing balls 2, the bearing 14 is arranged on the pipeline 4 and can be welded for connection, namely, one end of the bearing bracket 8 close to the pipeline 4 is welded on the pipeline 4, the bearing balls 2 can rotate and move in the middle of the bearing bracket 8, and a worm wheel 15 is additionally supported. Because the first permanent magnet 1 and the second permanent magnet 3 are arranged with the same halbach magnetic poles of the halbach magnetic matrix, the second permanent magnet 3 rotates together when the first permanent magnet 1 rotates. The valve disc 5 is provided with a runner hole 13 which is matched with the pipeline 4 in size, and the runner hole 13 moves upwards under the action of the second permanent magnet 3 to close the pipeline 4. Because the water pressure on one side of the inflow direction of the water conservancy main valve is larger, the pressure on one side of the water outlet is smaller, the valve disc 5 automatically seals the gap under the action of pressure difference, and the effect is better when the pressure difference is larger. The gasket 9 and the contact pad 10 are made of flexible materials, so that rigid contact can be avoided to a large extent.
The place where the hydraulic main valve needs to be installed needs to be cut off the pipeline 4, the flange plate 6 is welded, and the hydraulic main valve is connected with the gasket 7 through the bolts 11. In addition, the structures such as the permanent magnets positioned in the pipeline 4 are required to be installed by cutting the middle of the water conservancy main valve, then welding is carried out, and the support of the structures such as the valve disc 5 is required to be maintained by the magnetic force between the first permanent magnet 1 and the second permanent magnet 3.
Claims (5)
1. The halbach magnetic moment array transmission self-sealing main valve is characterized by comprising a bearing (14) consisting of bearing balls (2) and a bearing bracket (8), wherein the bearing bracket (8) is fixed on a pipeline (4); a worm wheel (15) driven by a worm (16) is arranged close to the outer ring of the bearing (14), a plurality of first permanent magnets (1) are fixed on the inner ring of the worm wheel (15), and the first permanent magnets (1) are arranged in a halbach magnetic matrix mode; a valve disc (5) is arranged close to the inner ring of the bearing (14), a plurality of second permanent magnets (3) are fixed on the outer ring of the valve disc (5), the second permanent magnets (3) are arranged according to a halbach magnetic moment array mode, and the second permanent magnets (3) and the first permanent magnets (1) form a magnetic transmission structure; a flow passage hole (13) is formed in the valve disc (5), and when the self-sealing main valve is fully opened, the flow passage hole (13) is just communicated with the pipeline (4); on the downstream side of the pipeline (4), a sealing gasket (9) is arranged on the valve disc (5), and a contact backing plate (10) is arranged in parallel adjacent to the sealing gasket (9); under the condition of sufficient water pressure, the sealing gasket (9) is adhered and sealed with the contact base plate (10); the first permanent magnet (1), the bearing ball (2), the bearing bracket (8), the contact base plate (10) and the worm wheel (15) in the main valve are fixed on the same linkage part, and the second permanent magnet (3), the valve disc (5) and the sealing gasket (9) are fixed on the other linkage part; the first permanent magnet (1) and the second permanent magnet (3) are arranged by adopting different-name magnetic poles of the same halbach magnetic matrix, and when the first permanent magnet (1) rotates, the second permanent magnet (3) rotates together.
2. A halbach moment array actuated self-sealing main valve as claimed in claim 1, wherein the pipes (4) on the upstream side or downstream side are connected by means of flanges (6).
3. A halbach moment array transmission self-sealing main valve according to claim 2, characterized in that the joint of the flange (6) is provided with a gasket (7) for sealing.
4. A halbach moment array driven self-sealing main valve according to claim 2, wherein the flange (6) is fixed by bolts (11).
5. A halbach moment array driven self-sealing main valve as in claim 1, wherein the bearing bracket (8) is secured to the pipe (4) by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037598.4A CN109707894B (en) | 2019-01-15 | 2019-01-15 | Halbach magnetic moment array transmission self-sealing main valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037598.4A CN109707894B (en) | 2019-01-15 | 2019-01-15 | Halbach magnetic moment array transmission self-sealing main valve |
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| Publication Number | Publication Date |
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| CN109707894A CN109707894A (en) | 2019-05-03 |
| CN109707894B true CN109707894B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910037598.4A Active CN109707894B (en) | 2019-01-15 | 2019-01-15 | Halbach magnetic moment array transmission self-sealing main valve |
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| CN110131514A (en) * | 2019-06-18 | 2019-08-16 | 西华大学 | A kind of pressure pipeline decompression energy-dissipating system |
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| JP2002181223A (en) * | 2000-12-15 | 2002-06-26 | Yokohama Hydex Co | Directional control valve |
| CN101049882A (en) * | 2007-05-11 | 2007-10-10 | 天津大学 | Machine of Halbach permanent magnetism without gear wheel for dragging elevator |
| JP2009168101A (en) * | 2008-01-15 | 2009-07-30 | Hitachi Ltd | Magnetic gear device |
| WO2010003514A1 (en) * | 2008-07-08 | 2010-01-14 | Rolls-Royce Plc. | A valve |
| CN101662202A (en) * | 2009-09-25 | 2010-03-03 | 上海大学 | Magnetic field modulating type concentric magnetic gear transmission device in Halbach magnet structure |
| KR20120056656A (en) * | 2010-11-25 | 2012-06-04 | 한국기계연구원 | Magnetic levitation system having halbach array |
| JP2013204984A (en) * | 2012-03-29 | 2013-10-07 | Railway Technical Research Institute | Magnetic refrigerating device with rotation type permanent magnet |
| WO2013184107A1 (en) * | 2012-06-06 | 2013-12-12 | Jore Matthew B | Systems for improved direct drive electromagnetic machines |
| CN105120940A (en) * | 2013-03-14 | 2015-12-02 | 美敦力施美德公司 | Device for finding the center and reading the setting of an implantable medical device |
| JP2017008972A (en) * | 2015-06-17 | 2017-01-12 | 東洋機械株式会社 | Magnetic power transmission device |
| CN208237188U (en) * | 2018-04-23 | 2018-12-14 | 黄依华 | The floated moving coil of gas electromagnetic valve |
| CN209557756U (en) * | 2019-01-15 | 2019-10-29 | 西华大学 | A kind of self-sealed main valve of Halbach nonmagnetic matrix transmission |
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2019
- 2019-01-15 CN CN201910037598.4A patent/CN109707894B/en active Active
Patent Citations (12)
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|---|---|---|---|---|
| JP2002181223A (en) * | 2000-12-15 | 2002-06-26 | Yokohama Hydex Co | Directional control valve |
| CN101049882A (en) * | 2007-05-11 | 2007-10-10 | 天津大学 | Machine of Halbach permanent magnetism without gear wheel for dragging elevator |
| JP2009168101A (en) * | 2008-01-15 | 2009-07-30 | Hitachi Ltd | Magnetic gear device |
| WO2010003514A1 (en) * | 2008-07-08 | 2010-01-14 | Rolls-Royce Plc. | A valve |
| CN101662202A (en) * | 2009-09-25 | 2010-03-03 | 上海大学 | Magnetic field modulating type concentric magnetic gear transmission device in Halbach magnet structure |
| KR20120056656A (en) * | 2010-11-25 | 2012-06-04 | 한국기계연구원 | Magnetic levitation system having halbach array |
| JP2013204984A (en) * | 2012-03-29 | 2013-10-07 | Railway Technical Research Institute | Magnetic refrigerating device with rotation type permanent magnet |
| WO2013184107A1 (en) * | 2012-06-06 | 2013-12-12 | Jore Matthew B | Systems for improved direct drive electromagnetic machines |
| CN105120940A (en) * | 2013-03-14 | 2015-12-02 | 美敦力施美德公司 | Device for finding the center and reading the setting of an implantable medical device |
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| CN208237188U (en) * | 2018-04-23 | 2018-12-14 | 黄依华 | The floated moving coil of gas electromagnetic valve |
| CN209557756U (en) * | 2019-01-15 | 2019-10-29 | 西华大学 | A kind of self-sealed main valve of Halbach nonmagnetic matrix transmission |
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