CN2693981Y - Water stop ring double follow-up water sealing device for hydraulic turbine - Google Patents

Abstract

The utility model relates to a water stop ring double follow-up water sealing device for a hydraulic turbine. The utility model is characterized in that the utility model has the structure of a first level axial double follow-up double seal that a first level static guide plate with two loop type guide grooves is screwed on a main shaft and is fixed to a top machine cover; two constant pressure water filling elastic rubber tubes are respectively placed at the bottoms of the two loop type guide grooves; two static split carbon crystal loop type sealed bodies are respectively positioned on the two constant pressure water filling elastic rubber tubes. A second level radial double follow-up single seal is that a second level rotary split guide plate with one loop type guide groove is screwed on the main shaft above a first level split rotary guide plate; a hollow elastic sealing rubber tube is placed at the bottoms of the loop type guide grooves; the split loop type carbon crystal sealing bodies are positioned outside the hollow elastic sealing rubber tube. A constant pressure damping device is that a pressure resisting sealing rubber sac is fixed to the upper end of a constant pressure barrel; a clamp plate is placed at the upper end of the pressure resisting sealing rubber sac and is sheathed on a guide rod of a clamp plate.

Description

Water turbine water stop ring double follow-up water sealing device

Technical field:

The utility model relates to the device of a kind of water turbine water stop ring sound place double follow-up water-stop.This device also is applicable to the static and dynamic sealing place water-stop and the steam packing in fields such as water pump, boats and ships, steam turbine.

Background technique:

At present; the water-stop at water turbine water stop ring static and dynamic sealing place also adopts hydraulic pressure jack-up watertight rubber ring and wear-resistant ring to carry out friction sealed; although rubbing surface is lubricated and the watertight rubber ring is cooled off at friction place water; but the accident that the watertight rubber ring is burnt frequently takes place: simultaneously; because of lubricating cooling water without containing silt in the fine filtering water; cause the abrasion condition of watertight rubber ring and wear-resistant ring very serious; cause generator set often to be shut down and change the watertight rubber ring; cause very big economic loss to power plant; though some watertight rubber ring material has adopted polyamine fat high-strength abrasion-proof material; but do not improve from the water stop ring structure, produce little effect.So, containing hydroelectric power plant and water turbine manufacturer on the big river basin of quantity of sand and mud for some, this problem is perplexing them always.

The model utility content:

The purpose of this utility model be at above-mentioned water turbine water stop ring, water pump, boats and ships and steam turbine in the problem that exists aspect the water-stop at static and dynamic sealing place and the steam packing, design a kind of by first grade axis to double follow-up double-sealing and the secondary radially sealing of double follow-up list or the water turbine water stop ring double follow-up water sealing device of double-sealing.

The utility model is to be made of to the radially double follow-up list sealing of double follow-up double sealing structure, secondary, constant voltage damping device three parts first grade axis.

First grade axis to the double follow-up double sealing structure is: the static guide plate of one-level that has two ring-like guide grooves puts together on the main shaft, be fixed on the cover of top, the end that two constant voltage water-filling elastic rubber pipes are placed on two ring-like guide grooves respectively, all, two brilliant ring-like seals of static distinguish carbon lay respectively on two constant voltage water-filling elastic rubber pipes, fix by standstill seal body positioning screw, the one-level distinguish that has two ring-like guide grooves rotates guide plate and puts together on the main shaft of the static guide plate of one-level top, two hollow elasticity caulking gum pipes lay respectively at the bottom of two ring-like guide grooves, two brilliant seals of the ring-like carbon of distinguish lay respectively at two hollow elasticity caulking gum pipe belows, half sealed body positioning screw is fixed on the one-level distinguish and rotates in the ring-like guide groove of guide plate, and half inserts in the ring-like guide groove of the static guide plate of one-level;

Secondary radially double follow-up list sealing is: the secondary rotation distinguish guide plate that has a ring-like guide groove puts together on the one-level distinguish and rotates on the main shaft of guide plate top, hollow elasticity caulking gum pipe is placed on the bottom of ring-like guide groove, the brilliant seal of the ring-like carbon of distinguish is positioned at outside the hollow elasticity caulking gum pipe, be positioned in the ring-like guide groove with distinguish seal positioning screw, divide the flap seal carrying cylinder to be positioned at the outside of first grade axis to the double follow-up double sealing structure, the lower end is fixed on the cover of top, the static distinguish guide plate of secondary that has a ring-like guide groove puts together on the upper end of branch flap seal carrying cylinder, ring-like hollow elasticity caulking gum pipe is placed on the bottom of ring-like guide groove, the brilliant seal of the ring-like carbon of distinguish is positioned at outside the ring-like hollow elasticity caulking gum pipe, be positioned in the ring-like guide groove the brilliant seal end face of the ring-like carbon of the distinguish driving fit of its end face and the ring-like guide groove of secondary rotation distinguish guide plate with distinguish seal positioning screw;

The constant voltage damping device is: fix a pressure-resistant seal rubber bag tank in constant voltage tube upper end, a pressing plate is put in the upper end of pressure-resistant seal rubber bag tank, is enclosed within on the pressing plate guide rod, and the pressing plate guide rod is fixed on pressure-resistant seal rubber bag tank both sides, on the constant voltage tube;

Passed the constant voltage water-filling elastic rubber pipe of branch flap seal carrying cylinder and ring-like guide groove of the static guide plate of one-level and guide groove bottom connects by constant voltage tube bottom water pipe;

The brilliant seal of the ring-like carbon of distinguish end is with square hollow seal rubber pipe sealing.

Ring-like hollow elasticity caulking gum pipe can provide the elastic force of the brilliant seal advance and retreat of the ring-like carbon of distinguish, can play the effect of sealing water again.

The utility model is skillfully constructed, novelty, compactness rational in infrastructure, easy for installation, safeguard simple, practical, fundamentally solve the waterproof at water turbine, water pump, boats and ships and steam turbine static and dynamic sealing place and the problem of leaking vapour, avoided muddy water to enter generator inside.In the water system of having saved lubricated cooling aspect the water turbine water stop ring, the operating cost of having saved generator set has improved hydraulic generator unit working time especially significantly, has reduced the number of times of changing water stop ring.

Description of drawings:

Fig. 1. water turbine water stop ring double follow-up schematic diagram of sealing device

Fig. 2. secondary double follow-up sealing A-A view

Wherein:

1, main shaft 2, secondary rotation distinguish guide plate 3, secondary rotate hollow elasticity caulking gum pipe

4, secondary rotates distinguish seal positioning screw 5, secondary rotates the brilliant seal of the ring-like carbon of distinguish

6, the static distinguish seal of secondary positioning screw 7, the brilliant seal of the ring-like carbon of the static distinguish of secondary

8, the static distinguish seal of secondary pressing plate 9, seal pressing plate fixing bolt

10, the static distinguish guide plate 11 of secondary, secondary distinguish guide plate fixedly spiral shell 12, divide the flap seal carrying cylinder

13, pressing plate guide rod (3) 14, pressing plate guide hole 15, pressing plate

16, pressure-resistant rubber capsule 17, rubber bag tank fixing seal press strip and bolt 18, constant voltage tube

19, top cover 20, pressurising water 21, withstand voltage water main

22, carrying cylinder fixing bolt 23, front end water supply pressure pipe 24, muddy water district 25, one-level are quiet

End guide plate 26, rear end constant voltage water-filling elastic rubber pipe 27, front end constant voltage water-filling elastic rubber pipe

28, the brilliant ring-like sealing 29 of the static distinguish carbon of one-level front end, one-level front end standstill seal body positioning screw

30, one-level is rotated the brilliant seal 31 of the ring-like carbon of front end distinguish, one-level rotary seal body positioning screw

32, one-level is rotated the distinguish guide plate closing bolt 33, one-level distinguish rotation guide plate

34, secondary rotates the distinguish guide plate closing bolt 35, the static ring-like hollow projectile cartridge caulking gum pipe of secondary

36, one-level is rotated the hollow elasticity caulking gum of front end pipe 37, one-level is rotated the hollow elastic packing in rear end

Rubber pipe 38, one-level are rotated rear end distinguish seal positioning screw 39, one-level is rotated the rear end distinguish

The brilliant seal 40 of ring-like carbon, the brilliant ring-like seal 41 of the static rear end of one-level distinguish carbon, one-level

Static back-end sealing body positioning screw 42, rear end water supply pressure pipe 43, the static distinguish of one-level

Guide plate fixing bolt 44, turnover water valve 45, secondary rotate the brilliant seal end face of the ring-like carbon of distinguish

Square caulking gum pipe 46, the brilliant seal end face of the ring-like carbon of the static distinguish of secondary square caulking gum

Pipe 47, the static distinguish guide plate of secondary fastening flange hole

Embodiment:

According to Fig. 1 of the present utility model and Fig. 2, be described.

With two static guide plates of one-level (25) after closing, be fixed on the top cover (19) by the static distinguish guide plate of one-level fixing bolt (43) again, again with front end constant voltage water-filling elastic rubber pipe (27) and rear end constant voltage water-filling elastic rubber pipe (26), put into the bottom of former and later two ring-like guide grooves of the static guide plate of one-level (25) respectively, respectively front end is supplied water pressure pipe (23) and rear end water supply pressure pipe (42) guided to the outside and come from the bottom of the static guide plate of one-level (25), merge on the water inlet and outlet valve of receiving on the withstand voltage water main (21) (44).The brilliant ring-like seal (28) of the static distinguish carbon of one-level front end and the ring-like seal in the static rear end of one-level (40) are put into former and later two ring-like guide grooves of the static guide plate of one-level (25), fix one-level front end standstill seal body positioning screw (29) and the static back-end sealing body of one-level positioning screw (41).

The one-level distinguish is rotated guide plate (33) rotate the distinguish guide plate closing bolt (32) closing, and can move up and down by one-level.In one-level was rotated the front and back groove of guide plate (33), the one-level of packing into rotates front end hollow elasticity caulking gum pipe (36) and one-level is rotated rear end hollow elasticity caulking gum pipe (37).Put into one-level again and rotate brilliant seal (30) of the ring-like carbon of front end distinguish and the brilliant seal (39) of the ring-like carbon of one-level rotation rear end distinguish, fix one-level front end rotary seal body positioning screw (31) and one-level and rotate rear end distinguish seal positioning screw (38); Then, one-level being rotated guide plate (33) moves down again, make in the front and back guide groove in the one-level rotation front and back brilliant seals of ring-like distinguish carbon (30) and (39) the embedding static guide plates of one-level (25), shown in (accompanying drawing one), tighten one-level and rotate the distinguish guide plate, make the one-level distinguish rotate guide plate (33) and together rotate with main shaft (1) closing bolt (32).

Secondary is rotated distinguish guide plate (2), rotating the distinguish guide plate by secondary is fixed on the main shaft (1) closing bolt (34), secondary is rotated ring-like hollow projectile cartridge caulking gum pipe (3) put into secondary rotation distinguish guide plate (2) guide groove, put into secondary again and rotate the brilliant seal (5) of the ring-like carbon of distinguish, the seal end face is put into quad seal rubber pipe (45), carry out end face seal, fix secondary and rotate distinguish seal positioning screw (4).Ring-like the static distinguish guide plate of secondary (10) synthesizing, and be fixed in sealing carrying cylinder (12) by the static distinguish guide plate of secondary fastening flange hole (47) and secondary distinguish guide plate fixing bolt (11), sealing carrying cylinder (12) is fixed on the top cover (19) by carrying cylinder fixing bolt (22).The static ring-like hollow projectile cartridge caulking gum pipe of secondary (35) is put into the guide groove of the static distinguish guide plate of secondary (10), again the static distinguish of the secondary brilliant seal of ring-like carbon (7) is put in this guide groove, end face is put into quad seal rubber pipe (46) and is carried out end face seal between the seal, load onto the static distinguish seal of secondary pressing plate (8), and by pressing plate fixing bolt (9), be fixed on the static distinguish guide plate of secondary (10), fix the static distinguish seal of secondary positioning screw (6).Secondary seal is described.

Pressure-resistant rubber capsule (16) is fixed on the constant voltage tube (18) by rubber bag tank fixing seal press strip and bolt (17), by turnover water valve (44) pressurising water (20) is injected in the constant voltage tube (18), to pass in and out water valve (44) after being full of closes, again withstand voltage water main (21) is connected on the other end of turnover water valve (44), open turnover water valve (44), pressing plate (15) is inserted on the pressing plate guide rod (13) by pressing plate guide hole (14), move down pressing plate to pressure-resistant rubber capsule (16), hydraulic pressure according to muddy water (24), adjust pressing plate (15) weight, the pressure to the muddy water seal request of water turbine can be provided.Sealing for water pump, boats and ships static and dynamic sealing place water also is like this.

Claims (1)

1 one kinds of water turbine water stop ring double follow-up water sealing devices is characterized in that:

First grade axis to the double follow-up double sealing structure is: the static guide plate of one-level that has two ring-like guide grooves puts together on the main shaft, be fixed on the cover of top, two constant voltage water-filling elastic rubber pipes are placed on the bottom of two ring-like guide grooves respectively, two brilliant ring-like seals of static distinguish carbon lay respectively on two constant voltage water-filling elastic rubber pipes, fix by standstill seal body positioning screw, the one-level distinguish that has two ring-like guide grooves rotates guide plate and puts together on the main shaft of the static guide plate of one-level top, two hollow elasticity caulking gum pipes lay respectively at the bottom of two ring-like guide grooves, two brilliant seals of the ring-like carbon of distinguish lay respectively at outside two hollow elasticity caulking gum pipes, half sealed body positioning screw is fixed on the one-level distinguish and rotates in the ring-like guide groove of guide plate, and half inserts in the ring-like guide groove of the static guide plate of one-level;

Secondary radially double follow-up list sealing is: the secondary rotation distinguish guide plate that has a ring-like guide groove puts together on the one-level distinguish and rotates on the main shaft of guide plate top, hollow elasticity caulking gum pipe is placed on the bottom of ring-like guide groove, the brilliant seal of the ring-like carbon of distinguish is positioned at outside the hollow elasticity caulking gum pipe, be fixed in the ring-like guide groove with distinguish seal positioning screw, divide the flap seal carrying cylinder to be positioned at the outside of first grade axis to the double follow-up double sealing structure, the lower end is fixed on the cover of top, the static distinguish guide plate of secondary that has a ring-like guide groove puts together on the upper end of branch flap seal carrying cylinder, ring-like hollow elasticity caulking gum pipe is placed on the bottom of ring-like guide groove, the brilliant seal of the ring-like carbon of distinguish is positioned at outside the ring-like hollow elasticity caulking gum pipe, be fixed in the ring-like guide groove the brilliant seal end face of the ring-like carbon of the distinguish driving fit of its end face and the ring-like guide groove of secondary rotation distinguish guide plate with distinguish seal positioning screw;

The constant voltage damping device is: fix a pressure-resistant seal rubber bag tank in constant voltage tube upper end, a pressing plate is put in the upper end of pressure-resistant seal rubber bag tank, is enclosed within on the pressing plate guide rod, and the pressing plate guide rod is fixed on pressure-resistant seal rubber bag tank both sides, on the constant voltage tube;

Passed the constant voltage water-filling elastic rubber pipe of branch flap seal carrying cylinder and ring-like guide groove of the static guide plate of one-level and guide groove bottom connects by constant voltage tube bottom water pipe;

The brilliant seal of the ring-like carbon of distinguish end is with square hollow seal rubber pipe sealing.

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