Split type mechanical seal
A mechanical seal, split technology, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of breaking structural continuity, increasing leakage channels, and low working parameters, so as to achieve good tightness, high pressure, The effect of high flatness
Inactive Publication Date: 2014-08-06
滁州扬安高科技术有限公司
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Problems solved by technology
After splitting the dynamic and static rings, it not only breaks the structural continuity of the overall seal ring and the auxiliary seal ring, but also increases the leakage channel along the split plane, and it is difficult to reach the integral end face of the split dynamic and static rings after assembly. The flatness of the ring and the pressing force required by the split surface or force will keep the dynamic and static rings from deforming, so the split mechanical seal has not been widely used so far, or can only be applied to the working parameters. lower occasion
Method used
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specific Embodiment 2
[0025] When the split mechanical seal fails and needs to be repaired and replaced, the steps are as follows: Step 1. Loosen the set screw I1, move the moving ring seat 2 with the moving ring 3 composed of two half rings to the left for a certain distance, and then Move the static ring seat 8 and the static ring 5 composed of two half rings out of the fixed sleeve 11; step 2, loosen the set screws II13 on the movable ring seat 2 and the static ring seat 8 respectively, and the driven ring seat 2 and the static ring seat After taking out the moving ring 3 composed of two half-rings and the static ring 5 composed of two half-rings in the ring seat 8, remove the O-ring I4 with the V-shaped mouth and the O-ring III9 with the V-shaped mouth and the O-ring II6 with a V-shaped mouth; step 3, place the O-ring I4 with a V-shaped mouth and the O-ring II6 with a V-shaped mouth that need to be replaced on the moving ring seat 2 and the static ring respectively In the seal groove in the inn...
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The invention discloses a split type mechanical seal which is characterized in that a movable ring seat and a static ring seat are respectively provided with four threaded holes, and flanges of two semi rings composing a movable ring and flanges of two semi rings composing a static ring are respectively provided with two platforms parallel to a split face; when the split type mechanical seal is installed, a movable and static ring auxiliary installation reference plate is placed between the end face of the movable ring and the end face of the static ring, and two limiting parts are used for clamping the flanges of the movable ring and the static ring so that the end faces of the flanges are tightly attached to the left end face and the right end face of the movable and static ring auxiliary installation reference plate; set screws II are screwed into the threaded holes in the movable ring seat and the static ring seat respectively, the two limiting parts and the movable and static ring auxiliary installation reference plate are detached, the movable ring seat and the movable ring move rightwards to be tightly attached to the end face of the static ring, then set screws I are screwed, and the installed split type mechanical seal is shown in the abstract diagram. Compared with split type mechanical seals of other types, the pressure borne by the split face of the split type mechanical seal is large, the flatness of the end face of the movable ring and the end face of the static ring after the combination is high, tightness is good, the structure is simple, and mounting and demounting are convenient.
Description
technical field [0001] The invention belongs to the technical field of sealing, and relates to a split mechanical seal, in particular to a dynamic and static ring divided into two halves, which are installed and fixed to realize the mechanical seal function. Background technique [0002] As a dynamic seal for rotating shafts, mechanical seals are widely used in devices in the fields of electric power, ships, aerospace, petrochemicals, etc. due to their simple structure and stable performance. However, the friction and wear of the end faces caused by the relative rotation between the moving ring and the static ring, as well as the aging of the O-ring, will cause the mechanical seal to fail. Relevant data show that 40%-50% of the workload in the maintenance of machinery and equipment is used for the maintenance of shaft seals, and about 70% of the maintenance costs are used to deal with the sealing failures of related machines. However, the wearing parts of the mechanical sea...
Claims
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IPC IPC(8): F16J15/16
Inventor 涂桥安孙见君胡琼闻洋洋张浩王伟
Owner 滁州扬安高科技术有限公司