Wear-resistant and particle-resistant three-way disk-cutting valve
A wear-resistant, three-way technology, applied to multi-way valves, valve details, valve devices, etc., can solve the problems of medium accumulation on the sealing surface, valve failure, and medium particles scouring the valve seat, etc., to achieve good elastic deformation and extension The effect of service life
Inactive Publication Date: 2009-08-26
CHINA TIANCHEN ENG +1
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Problems solved by technology
Because the three-way valve with simple structure in the prior art cannot contact the valve disc and the two valve seats at the same time during the switching process. The three-way valve with a simple structure in the prior art not only cannot meet the above technical requirements, but also easily causes a large amount of slurry particles to accumulate on the surface of the valve seat that is not in contact. In addition, due to the simple structure of the three-way valve disc and seat The seal is pressed to seal, not parallel to the seal, so once the valve disc is sealed with the valve seat, it is impossible to clean the particle-containing medium accumulated on the surface of the valve seat, so the valve will not close properly. Severe phenomenon, the granular medium will accumulate more and more until the valve fails
Because the surface of the valve seat of the three-way valve with a simple structure in the prior art is not hardened, the medium particles will severely wash the valve seat, so that the service life of the valve is extremely short, and basically a valve needs to be replaced after 2 months of use.
Moreover, in the process of use, it is difficult for the simple three-way valve to achieve high temperature resistance, particle erosion and corrosion resistance, and it is easy to cause medium accumulation and serious damage on the sealing surface, and the phenomenon of valve jamming is easy to occur due to no compensation during high temperature expansion. It has caused great difficulties to the continuous production on site
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[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] Main components and details of the wear-resistant and particle-resistant three-way disc-cut valve of the present invention: 1. Upper valve body, 61. Valve seat, 62. Valve cavity, 63. Inlet, 64. First outlet, 65. Second Two outlets, 2. Valve disc, 3. Valve disc thimble, 4. Valve core crank, 5. Gasket, 6. Shaft seat, 7. Gasket, 8. Rotary shaft thimble, 9. Bearing, 10. Rotary shaft, 12. Actuator connecting shaft, 13. Actuator connecting plate, 14. Pin, 15. Actuator connecting block, 16. Drive shaft, 17. A drive crank, 18. Purge assembly, 19. B drive crank, 31. First Disc spring, 32. Second disc spring, 33. Third disc spring, 34. Packing liner, 35. Packing, 36. Packing gland, 37. Packing gland, 38. Stud, 39 .Hexagonal nut, 51. Wound washer, 52. Stud, 53. Hexagonal nut, 55. Hexagonal head bolt, 56. Spring washer, 57. Hexagonal thin...
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The invention discloses a wear-resistant and particle-resistant three-way disk-cutting valve, comprising an enclosed valve cavity formed between an upper valve body and a valve seat, an inlet on the upper valve body and two outlets on the valve seat; the upper valve body is hinged with a rotating shaft, sealing filler is arranged at a position where the rotating shaft is hinged with the upper valve body; the outer end of the rotating shaft is connected with a connection shaft of an actuator; the inner end of the rotating shaft is fixed with a valve core crank inside the valve cavity, a valve disc is inserted into the other end of the calve core crank, the calve core crank drives the valve disk to switch between a first outlet and a second outlet; a taper angle is formed at the position where the lateral side of the valve disk and the bottom surface meet, the bottom surface and the upper surface of the valve seat are mutually-matched sealing surfaces, a first elastic supporting device is arranged between the valve core crank and the valve disk; the inner end part of the rotating shaft is inserted into the upper part of the valve seat and a second elastic supporting device is also arranged on the upper part of the valve seat. The three-way disk-cut valve of the invention can lengthen the service life of the valve in harsh working conditions such as solid dust, polysilicon, coal dust, ore slurry, etc.
Description
technical field [0001] The invention relates to a three-way valve, in particular to a three-way disc-cut valve. Background technique [0002] At present, in the working conditions of solid dust, polysilicon, coal powder, ore pulp, etc., the three-way switching process of different media, among them, there are two kinds of media that need to be automatically switched, one is slurry containing particles, and it is easy to crystallize, and the other is The first is acidic water. Assuming that the medium is purely water, it is sufficient to meet the technical requirements by using a three-way valve with a simple structure in the prior art. Because the three-way valve with simple structure in the prior art cannot contact the valve disc and the two valve seats at the same time during the switching process. The three-way valve with a simple structure in the prior art not only cannot meet the above technical requirements, but also easily causes a large amount of slurry particles t...
Claims
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Login to View More IPC IPC(8): F16K11/10F16K31/44F16K27/00F16K41/02
Inventor郭贵和苗同立黄源汪浩赵柱
OwnerCHINA TIANCHEN ENG