CN214035944U

CN214035944U - Main shaft sealing device of water turbine

Info

Publication number: CN214035944U
Application number: CN202023263764.XU
Authority: CN
Inventors: 马艳丽; 周强; 任江涛; 汶占武
Original assignee: Yangling Vocational and Technical College
Current assignee: Yangling Vocational and Technical College
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-24
Anticipated expiration: 2030-12-30

Abstract

The utility model belongs to the technical field of the hydraulic turbine, especially, hydraulic turbine main shaft sealing device, which comprises a main shaft, L type piece is installed in the outside of main shaft, the fixed intercommunication in one side of L type piece has the outlet pipe, the welding of one side of L type piece has the go-between, solid fixed ring is installed to one side of go-between, the sealing ring is installed through solid fixed ring in one side of go-between, the inboard welding of sealing ring has the installation piece, L type piece, go-between, sealing ring and installation piece form a cavity. The utility model discloses a be provided with the installation piece, be provided with the through-hole in the inside of installation piece, the through-hole can be the external cavity of constituteing with all the other spare parts of lug connection be connected, when the device carries out work, the water that will permeate can directly enter into the cavity through the through-hole, and the inside water of cavity can produce certain pressure, perhaps possesses certain volume, plays certain effect to the stopping of water, plays waterproof effect.

Description

Main shaft sealing device of water turbine

Technical Field

The utility model relates to a hydraulic turbine technical field specifically is hydraulic turbine main shaft sealing device.

Background

The water turbine is a power machine which converts the energy of water flow into rotary mechanical energy. As early as 100 years before the Yuan, China has developed a rudiment-water wheel of a water turbine for pumping irrigation and driving grain processing equipment; modern water turbines are mostly installed in hydropower stations and are used for driving generators to generate electricity. The effect of hydraulic turbine main shaft seal blocks rivers effectively and overflows from the clearance between main shaft and the top cap, prevents that hydraulic turbine main bearing and top cap from being submerged, maintains the normal operating of bearing and unit, but current hydraulic turbine is the infiltration of direct block water usually, but the infiltration is very difficult to be stopped, still produces the corrosion easily, has brought the inconvenience for staff's maintenance work.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a hydraulic turbine main shaft sealing device has solved the problem that water intake influences device spare part.

In order to achieve the above object, the utility model provides a following technical scheme: hydraulic turbine main shaft sealing device, including the main shaft, L type piece is installed in the outside of main shaft, the fixed intercommunication in one side of L type piece has the outlet pipe, the go-between has been welded to one side of L type piece, solid fixed ring is installed to one side of go-between, the sealing ring is installed through solid fixed ring in one side of go-between, the inboard welding of sealing ring has the installation piece, L type piece, go-between, sealing ring and installation piece form a cavity, the through-hole has been seted up to the inside of installation piece, and the one end and the external intercommunication of through-hole, the other end and the cavity of through-hole are connected.

As an optimized technical scheme of the utility model, the inside gomphosis of solid fixed ring is installed and is inserted the piece, insert the both sides of piece and install the lug, and the lug is installed with solid fixed ring's inside gomphosis.

As a preferred technical scheme of the utility model, the outside welding that inserts the piece has the cushion, and the internally mounted of cushion has the screw, and the tail end of screw runs through the inside of installing at solid fixed ring.

As an optimal technical scheme of the utility model, one side of L type piece is run through and is installed fastening bolt, one side of L type piece is passed through fastening bolt and is installed the reinforcement ring.

As the utility model discloses a preferred technical scheme, the backing plate has been placed with the inside of reinforcing ring to fastening bolt, the rubber pad has been placed with the inside of reinforcing ring to the backing plate.

As an optimal technical scheme of the utility model, one side welding of fastening bolt has the lead screw, and the one end of lead screw runs through the inside of installing at L type piece, the notch has been seted up to the inside of L type piece, and the asbestos pad has been placed to the inside of notch.

Compared with the prior art, the utility model provides a hydraulic turbine main shaft sealing device possesses following beneficial effect:

1. this hydraulic turbine main shaft sealing device through setting up the installation piece, is provided with the through-hole in the inside of installation piece, and the through-hole can the external cavity of constituteing with all the other spare parts of lug connection be connected, and when the device carried out work, the water that will permeate can directly enter into the cavity through the through-hole, and the inside water of cavity can produce certain pressure, perhaps possesses certain volume, plays certain effect to the block of water, plays waterproof effect.

2. This hydraulic turbine main shaft sealing device through being provided with solid fixed ring, installs through the gomphosis in solid fixed ring's inside and inserts the piece, can take out through inserting the piece when the device overhauls, through the inside injected water in the space that solid fixed ring inside had and the space that L type piece formed, washes the cavity inside, avoids remaining more silt, influences the subsequent use of device.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is an enlarged schematic structural diagram of the point B in fig. 1 according to the present invention.

In the figure: 1. a main shaft; 2. fastening a bolt; 3. a through hole; 4. a bump; 5. mounting blocks; 6. a seal ring; 7. a connecting ring; 8. an L-shaped block; 9. a base plate; 10. a rubber pad; 11. a reinforcing ring; 12. a screw rod; 13. an asbestos pad; 14. a fixing ring; 15. a screw; 16. inserting a block; 17. and (5) discharging a water pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: hydroturbine main shaft sealing device, including main shaft 1, L type piece 8 is installed in the outside of main shaft 1, the fixed intercommunication in one side of L type piece 8 has outlet pipe 17, go-between 7 is welded to one side of L type piece 8, solid fixed ring 14 is installed to one side of go-between 7, sealing ring 6 is installed through solid fixed ring 14 in one side of go-between 7, the inboard welding of sealing ring 6 has installation piece 5, L type piece 8, go-between 7, sealing ring 6 and installation piece 5 form a cavity, through-hole 3 has been seted up to the inside of installation piece 5, and the one end and the external intercommunication of through-hole 3, the other end and the cavity of through-.

In this embodiment, through setting up installation piece 5, be provided with through-hole 3 in the inside of installation piece 5, through-hole 3 can be connected the cavity that external and L type piece 8 and all the other spare parts of lug connection constitute, when the device carries out work, the water that will permeate can directly enter into the cavity through-hole 3, and the inside water of cavity can produce certain pressure, perhaps possesses certain volume, plays certain effect to the interception of water, plays waterproof effect.

Specifically, the inner portion of the fixing ring 14 is fitted with an insertion block 16, the two sides of the insertion block 16 are fitted with the protrusions 4, and the protrusions 4 are fitted with the inner portion of the fixing ring 14.

In this embodiment, the insertion block 16 is mounted inside the fixing ring 14 through the protrusion 4, so that the sealing performance of the device in use can be improved to the maximum extent, and the occurrence of water seepage is avoided.

Specifically, a cushion block is welded on the outer side of the insertion block 16, a screw 15 is installed inside the cushion block, and the tail end of the screw 15 penetrates through the fixing ring 14.

In this embodiment, the screw 15 can fix the insertion block 16 inside the fixing ring 14, so as to prevent the insertion block 16 from sliding off during the use of the device.

Specifically, a fastening bolt 2 is installed on one side of the L-shaped block 8 in a penetrating manner, and a reinforcing ring 11 is installed on one side of the L-shaped block 8 through the fastening bolt 2.

In this embodiment, reinforcing ring 11 can rely on the power of installing on main shaft 1, guarantees that the cavity that L type piece 8 formed when accomodating water, and water pressure can not cause the damage to the device, the life of extension device.

Specifically, the backing plate 9 is arranged inside the fastening bolt 2 and the reinforcing ring 11, and the rubber pad 10 is arranged inside the backing plate 9 and the reinforcing ring 11.

In this embodiment, the backing plate 9 and the rubber pad 10 can further increase the fixing strength of the fastening bolt 2 between the reinforcing ring 11 and the L-shaped block 8, and the rubber pad 10 can seal the gap formed at the fastening bolt 2, thereby avoiding the water leakage.

Specifically, one side welding of fastening bolt 2 has lead screw 12, and the one end of lead screw 12 runs through and installs in the inside of L type piece 8, and the notch has been seted up to the inside of L type piece 8, and the asbestos pad 13 has been placed to the inside of notch.

In this embodiment, the asbestos pad 13 can increase the friction force at the notch between the screw rod 12 and the L-shaped block 8, further increase the mounting stability of the fastening bolt 2, and maintain the integrity of the device.

The utility model discloses a theory of operation and use flow: through setting up installation piece 5, inside at installation piece 5 is provided with through-hole 3, through-hole 3 can the external cavity connection of forming with L type piece 8 and all the other spare parts of lug connection, when the device carries out work, the water that will permeate can directly enter into the cavity through-hole 3, the inside water of cavity can produce certain pressure, or occupy certain volume, play certain effect to the block of water, play waterproof effect, through being provided with solid fixed ring 14, install through the gomphosis in solid fixed ring 14's inside and insert piece 16, when the device overhauls, can take out through inserting piece 16, through the inside injected water in space that solid fixed ring 14 inside had and L type piece 8 formed, wash the cavity inside, avoid remaining more silt, influence the subsequent use of device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Hydraulic turbine main shaft sealing device, including main shaft (1), its characterized in that: l type piece (8) are installed in the outside of main shaft (1), the fixed intercommunication in one side of L type piece (8) has outlet pipe (17), one side welding of L type piece (8) has go-between (7), solid fixed ring (14) are installed to one side of go-between (7), sealing ring (6) are installed through solid fixed ring (14) in one side of go-between (7), the inboard welding of sealing ring (6) has installation piece (5), L type piece (8), go-between (7), sealing ring (6) and installation piece (5) form a cavity, through-hole (3) have been seted up to the inside of installation piece (5), and the one end and the external intercommunication of through-hole (3), the other end and the cavity of through-hole (3) are connected.

2. The hydraulic turbine main shaft seal device according to claim 1, characterized in that: the inner part of the fixing ring (14) is embedded with an inserting block (16), the two sides of the inserting block (16) are provided with convex blocks (4), and the convex blocks (4) are embedded with the inner part of the fixing ring (14).

3. The hydraulic turbine main shaft seal device according to claim 2, characterized in that: the outer side of the inserting block (16) is welded with a cushion block, a screw (15) is installed inside the cushion block, and the tail end of the screw (15) penetrates through the fixing ring (14).

4. The hydraulic turbine main shaft seal device according to claim 1, characterized in that: and one side of the L-shaped block (8) is provided with a fastening bolt (2) in a penetrating way, and one side of the L-shaped block (8) is provided with a reinforcing ring (11) through the fastening bolt (2).

5. The hydraulic turbine main shaft seal device according to claim 4, wherein: a backing plate (9) is arranged inside the fastening bolt (2) and the reinforcing ring (11), and a rubber pad (10) is arranged inside the backing plate (9) and the reinforcing ring (11).

6. The hydraulic turbine main shaft seal device according to claim 4, wherein: one side welding of fastening bolt (2) has lead screw (12), and the one end of lead screw (12) runs through the inside of installing in L type piece (8), the notch has been seted up to the inside of L type piece (8), and the asbestos pad (13) has been placed to the inside of notch.