CN210600586U - Special high-tension bushing compensator for hydropower station - Google Patents

Abstract

The utility model provides a special high-tension bushing compensator of power station, including inner tube, urceolus, the inner tube cup joints in the urceolus, is equipped with the sealing filler between inner tube and the urceolus, and the left side of sealing filler is equipped with presses the cover, presses the cover including cup jointing at the barrel in the inner tube outside, with barrel integrated into one piece's first flange, and the right side of sealing filler is equipped with the retaining ring, and the retaining ring welds on the inner wall of urceolus, is provided with a first through-hole on the first flange, the urceolus is close to one side of pressing the cover and is provided with the second flange, be provided with the second through-hole on the second flange, first flange and second flange pass first through-hole, second through-hole through a bolt and lock with the nut, there is the clearance that supplies to press the; the utility model discloses greatly reduced the use risk under compensator high pressure and the impact condition, prolonged the life of compensator, the outer sleeve of thickening has protected the mountain area grit effectively to roll off and has caused the whole damage of compensator.

Description

Special high-tension bushing compensator for hydropower station

Technical Field

The utility model belongs to the technical field of the compensator, concretely relates to special high-tension bushing compensator of power station.

Background

In a hydropower station, because the characteristic temperature of a medium in a pipeline of the hydropower station is normally below 100 ℃, the medium increases along with the pressure of water fall, the impact force of the medium on the pipeline is large, the sand and dust content in the medium is large, and the pipeline is easy to cause large axial displacement and large pressure, so that the conditions such as breakage and the like are caused, and therefore, a compensator with strong pressure resistance, good sealing performance and an axial displacement function is required.

SUMMERY OF THE UTILITY MODEL

The utility model provides a special high-tension bushing compensator of power station to solve the problem that proposes in the background art.

In order to solve the technical problem, an embodiment of the utility model provides a special high-tension bushing compensator of power station, a serial communication port, including inner tube, urceolus, the inner tube cup joints in the urceolus, be equipped with the packings between inner tube and the urceolus, the left side of packings is equipped with the pressure cover, the pressure cover includes the barrel that cup joints in the inner tube outside, with barrel integrated into one piece's first flange, the right side of packings is equipped with the retaining ring, the retaining ring welds on the inner wall of urceolus, be provided with a first through-hole on the first flange, the urceolus is close to one side of pressing the cover and is provided with the second flange, be provided with the second through-hole on the second flange, first flange and second flange pass first through-hole, second through-hole through a bolt and lock with the nut, there is the clearance that supplies the pressure cover to remove between first flange and; still be provided with a reinforced structure on the outer wall of urceolus, reinforced structure is including adding the material post, be provided with the charge cavity in the reinforced post, the top of charge cavity is provided with the internal thread hole, the internal thread is downthehole can dismantle and be connected with sealed double-screw bolt, be provided with 1 or a plurality of in the retaining ring, guiding hole and charge cavity intercommunication, the guiding hole extends to sealed filler department, the supporting spherical seal assembly that is provided with on the right side outer wall of inner tube, the inner wall of urceolus, spherical seal assembly is including setting up the first lug on the urceolus inner wall and setting up the second lug on the inner tube outer wall, be provided with an arc recess on the first lug, the second lug is provided with the arc structure with the contact surface of first lug, the up end of second lug and the arc recess face looks adaptation of first lug.

Furthermore, a sealing gasket is arranged on the upper end face of the second bump.

Furthermore, the feeding hole is of a step hole structure and comprises a large hole far away from the outer cylinder wall and a small hole close to the outer wall of the outer cylinder, the large hole and the small hole are provided with the same central shaft, and a guide inclined plane is arranged at the joint of the large hole and the small hole.

The lower end of the sealing stud is provided with a chamfer, and the shape of the chamfer is matched with that of the guide inclined plane.

Graphite powder is pre-arranged in the feeding hole, a baffle is arranged at the upper end of the graphite powder, and the graphite powder is extruded into the sealing filler downwards along with the baffle under the pressure of the sealing stud.

Furthermore, the outer sides of the outer barrel and the inner barrel are respectively provided with lug plates, and the lug plates are connected through a pull rod.

Furthermore, the guide hole is arranged in an inclined structure, and the lower end of the guide hole is arranged on one side close to the sealing filler.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows: the utility model discloses a high-tension bushing compensator, long service life, sealing performance is good, can carry out the leaking stoppage under the area pressure condition, do not influence the normal operating of pipeline, medium flow area is unanimous with former pipeline, the compensation volume axial displacement can be effectively compensated, the stable performance, overcome the power station effectively and used the destructive risk that the piping caused for high-pressure bellows compensator, greatly reduced the compensator high pressure and the use risk under the working condition of assaulting, the life of compensator has been prolonged, thickened outer sleeve has protected the mountain area grit effectively and has rolled and fall the whole damage that causes the compensator.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Description of reference numerals: 1. an inner barrel; 2. an outer cylinder; 21. a second flange; 3. sealing and filling; 4. collapsing; 41. a barrel; 42. a first flange; 5. a retainer ring; 51. a guide hole; 6. a feeding mechanism; 61. a feeding column; 62. a feed aperture; 63. a seal bolt; 7. a spherical seal assembly; 71. a first bump; 72. and a second bump.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a special high-voltage bushing compensator for hydropower station comprises an inner cylinder 1 and an outer cylinder 2, wherein the inner cylinder 1 is sleeved in the outer cylinder 2, a sealing filler 3 is arranged between the inner cylinder 1 and the outer cylinder 2, a pressing sleeve 4 is arranged on the left side of the sealing filler 3, the pressing sleeve 4 comprises a cylinder body 41 sleeved outside the inner cylinder 1 and a first flange 42 integrally formed with the cylinder body 41, a retainer ring 51 is arranged at the right side of the sealing filler 3, the retainer ring 51 is welded on the inner wall of the outer cylinder 2, the first flange 42 is provided with a first through hole, one side of the outer cylinder 2 close to the pressing sleeve 4 is provided with a second flange 21, a second through hole is formed in the second flange 21, the first flange 42 and the second flange 21 pass through the first through hole and the second through hole through a bolt and are locked by nuts, and a gap for moving the pressure sleeve 4 is formed between the first flange 42 and the second flange 21; the outer wall of the outer barrel 2 is also provided with a feeding structure 6, the feeding structure 6 comprises a feeding column 61, a feeding hole 62 is formed in the feeding column 61, an internal threaded hole is formed in the top of the feeding hole 62, and a sealing stud 63 is detachably connected in the internal threaded hole, so that when the sealing structure is used, if only a small amount of graphite powder needs to be added, the graphite material in the feeding hole 52 is added into the sealing filler 3 only by spinning the sealing stud 63, and a sealing effect is achieved; if a large amount of graphite powder is needed to be added in a sealing connection mode or in an initial filling mode, external graphite powder adding equipment can be selected to be connected for adding, the applicability is wide, the later-stage use is more convenient, 1 or more than one graphite powder is arranged in the retainer ring 5, the guide hole 51 is communicated with the feed hole 62, the guide hole 51 extends to the position of the sealing filler 3, a spherical sealing component 7 is arranged on the outer wall of the right side of the inner barrel 1 and the inner wall of the outer barrel 2 in a matched mode, the spherical sealing component 7 comprises a first lug 71 fixedly arranged on the inner wall of the outer barrel 2 in a welding fixing mode and a second lug 72 fixedly arranged on the outer wall of the inner barrel 1 in a welding fixing mode, an arc-shaped groove is formed in the first lug 71, an arc-shaped structure is arranged on the contact surface of the second lug 72 and the first lug 71, and the upper end surface of the second, the spherical sealing component 7 plays a role in sealing and stopping.

In a further embodiment, the upper end face of the second projection 72 is provided with a sealing gasket, which on the one hand protects the contact face of the first projection 71 and the second projection 72, and on the other hand performs a sealing function when the front end sealing packing 3 fails to seal.

In a further embodiment, the feeding hole 62 is provided with a stepped hole structure, and includes a large hole far away from the outer cylinder wall and a small hole close to the outer wall of the outer cylinder, the large hole and the small hole have the same central axis, and a guiding inclined plane is arranged at the joint of the large hole and the small hole.

The lower end of the sealing stud 63 is provided with a chamfer, and the shape of the chamfer is matched with that of the guide inclined plane.

Graphite powder is pre-arranged in the feeding hole 62, a baffle is arranged at the upper end of the graphite powder, and the graphite powder is extruded into the sealing filler 3 downwards along with the baffle under the pressure of the sealing stud.

Furthermore, the outer sides of the outer cylinder 2 and the inner cylinder 1 are respectively provided with lug plates, and the lug plates are connected through a pull rod.

In a further embodiment, the guiding hole 51 is provided in an inclined structure, and a lower end of the guiding hole 51 is disposed at a side close to the sealing packing 3.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A special high-voltage sleeve compensator for a hydropower station is characterized by comprising an inner cylinder and an outer cylinder, wherein the inner cylinder is sleeved in the outer cylinder, a sealing filler is arranged between the inner cylinder and the outer cylinder, a pressing sleeve is arranged on the left side of the sealing filler and comprises a cylinder body sleeved on the outer side of the inner cylinder and a first flange integrally formed with the cylinder body, a check ring is arranged on the right side of the sealing filler and welded on the inner wall of the outer cylinder, a first through hole is formed in the first flange, a second flange is arranged on one side, close to the pressing sleeve, of the outer cylinder, a second through hole is formed in the second flange, the first flange and the second flange penetrate through the first through hole and the second through hole through a bolt and are locked by nuts, and a gap for the movement of the pressing sleeve is formed between the first flange and the second flange; still be provided with a reinforced structure on the outer wall of urceolus, reinforced structure is including adding the material post, be provided with the charge cavity in the reinforced post, the top of charge cavity is provided with the internal thread hole, the internal thread is downthehole to dismantle and is connected with sealed double-screw bolt, be provided with 1 or a plurality ofly in the retaining ring, guiding hole and charge cavity intercommunication, the guiding hole extends to sealed filler department, the supporting spherical seal assembly that is provided with on the right side outer wall of inner tube, the inner wall of urceolus, spherical seal assembly is including setting up the first lug on the urceolus inner wall and setting up the second lug on the inner tube outer wall, be provided with an arc recess on the first lug, the second lug is provided with the arc structure with the contact surface of first lug, the up end of second lug and the arc recess face looks adaptation of first lug.

2. The special high-voltage bushing compensator for hydropower stations as claimed in claim 1, wherein a sealing gasket is disposed on an upper end surface of the second protrusion.

3. The special high-voltage bushing compensator for the hydropower station as claimed in claim 1, wherein the charging hole is configured as a stepped hole structure and comprises a large hole far away from the outer cylinder wall and a small hole close to the outer wall of the outer cylinder, the large hole and the small hole have the same central axis, and a guide inclined plane is arranged at the joint of the large hole and the small hole.

4. The special high-voltage sleeve compensator for the hydropower station according to claim 3, wherein the lower end of the seal stud is provided with a chamfer, and the shape of the chamfer is matched with that of the guide inclined plane.

5. The special high-voltage bushing compensator for the hydropower station as claimed in claim 3, wherein graphite powder is pre-arranged in the charging hole, a baffle is arranged at the upper end of the graphite powder, and the graphite powder is extruded into the sealing filler downwards along with the baffle under the pressure of the sealing stud.

6. The special high-voltage bushing compensator for the hydropower station according to claim 1, wherein the outer side of the outer cylinder and the outer side of the inner cylinder are respectively provided with an ear plate, and the ear plates are connected through a pull rod.

7. The special high-voltage bushing compensator for the hydropower station as claimed in claim 1, wherein the guiding hole is arranged in an inclined structure, and the lower end position of the guiding hole is arranged on the side close to the sealing filler.

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