CN201013521Y

CN201013521Y - Single corrugated elastic oil tank

Info

Publication number: CN201013521Y
Application number: CNU2006200217940U
Authority: CN
Inventors: 陈琪
Original assignee: HAERBIN MOTOR FACTORY ELECTROMECHANICAL INDUSTRY Co Ltd
Current assignee: HAERBIN MOTOR FACTORY ELECTROMECHANICAL INDUSTRY Co Ltd
Priority date: 2006-10-09
Filing date: 2006-10-09
Publication date: 2008-01-30
Anticipated expiration: 2016-10-09

Abstract

The utility model is a single-wave elastic oil box used for supplying the thrust support for the trust bearing of the middle-small scale upright hydraulic generator, which consists of a single-wave elastic oil box body, a support iron body and a flat oil liquid; the design structure is that: the support iron is arranged inside of the single-wave elastic oil box; the upper plane of the support iron is sealed welded with the upper mouth plane of the single-wave elastic oil box; the flat oil liquid is full of the oil body; two interfaces of communicating tubes are arranged on the single-wave elastic oil box. After the assembling single-wave elastic oil box full of the oil liquid is arranged on the supported part of the trust tile of the machine unit, each elastic oil box is connected together through the communicating tube so as to make the oil liquid in each single-wave elastic oil box communicated with each other through the communicating tube. The design forms the elastic supported structure body for the trust tile; the design can solve the shortcoming that the force on the rigid supported trust tile is not even and is difficult to be adjusted; the device can realize the force on the trust tile even can guarantee the generator with long-term, safe and reliable operation.

Description

Single-ripple elastic tank

One technical field

What the present invention relates to is a kind of supporting structure of vertical hydrogenerator thrust bearing segment, specifically a kind of single-ripple elastic tank.

Two background techniquies

Thrust-bearing is one of the most key vitals of hydraulic turbine generator.

The supporting structure of thrust-bearing can be divided into rigid support and elastic support substantially, at present, in the Medium and Small Hydraulic Generator group, adopts rigid support usually, and see Fig. 1: pillar 2 is rigid support main bodys, is fixed on the frame 1; The pillar screw 3 of adjusting use is installed on the pillar 2, is fixed with pallet 4 on the pillar screw, thrust bearing shoe valve 5 just is installed on the pallet.After one group of thrust bearing shoe valve installs, just guarantee that by adjusting pillar screw 3 thrust bearing shoe valve is on same horizontal plane.But rigid support is installed, each tiling is difficult for being transferred to same level during maintenance, and each watt stressed being difficult for mixes well, and it is big to adjust workload, load that can not balanced each watt during unit operation.So it is lower that the unit pressure of the thrust bearing shoe of rigid support obtains, generally be no more than 3MPa.Because be subjected to the restriction of bearing shell pressure, the bearing shell area must strengthen, the thing followed is that the size of runner plate, thrust collar all will strengthen, and along with the increasing of bearing shell diameter, bearing loss increases, and causes oil groove to strengthen, and the thrust oil cooler strengthens, unit weight increases, and structure is unreasonable, and cost improves.Because each bearing shell discontinuity is easy to generate vibration and bearing shell burning damage accident during unit operation, being directed at unit can not move.

Three summary of the invention

Be difficult for mixing well the stressed even problem of each bearing liner in order to overcome rigidity supporting structure, the utility model provides a kind of single-ripple elastic tank, this single-ripple elastic tank is back in groups by coupling together connecting tube, supporting structure as thrust bearing shoe valve can solve thrust bearing shoe valve discontinuity problem, thereby guaranteed long-term, safety, the stable operation of thrust-bearing, guaranteed that unit is long-term, safety, stable electric generation.

The utility model technological scheme that is adopted of dealing with problems is: adopt a kind of single-ripple elastic tank, as Fig. 2, specifically place Zhi Tie (Fig. 2 discipline 2) in single-ripple elastic tank body (Fig. 2 discipline 1) lining exactly, last plane of Zhi Tie and single-ripple elastic tank body upper port plane slit weld sealing with electric welding, turbine fluid (Fig. 2 discipline 3) is full of fuel tank, has constituted single-ripple elastic tank.When in groups single-ripple elastic tank after (Fig. 2 discipline 4) couples together with connecting tube, make the fluid of each single-ripple elastic tank be interconnected by connecting tube, become one and wait compressed-oil system, constituted the elastic support structure body of thrust bearing segment thus, load balancing during unit operation, install, needn't adjust the stressed of each watt during maintenance, significantly reduced installation, maintenance workload, because single-ripple elastic tank has stressed good characteristics, the unit pressure of bearing shell can be got about 4MPa, therefore the bearing shell size can be dwindled, and bearing loss reduces, and makes hydraulic generator thrust bearing more be tending towards reasonable, its comprehensive benefit is conspicuous, and, avoided vibration owing to the generation of thrust-bearing discontinuity owing to adopted the single-ripple elastic tank support, the safe operation and the stability of unit all are greatly improved.

The quality of thrust-bearing supporting structure directly influences the safe operation of thrust-bearing.Good supporting structure not only will have reliable, safe enabling capabilities, also should have advantages such as simple in structure, convenient for installation and maintenance simultaneously, and for the Medium and Small Hydraulic Generator group, the single-ripple elastic tank supporting structure has possessed the advantage of above-mentioned requirements.

The utility model has obtained application on Baise of Guangxi water power plant hydraulic generator unit and its seawater power station hydraulic generator unit of Xinjiang Qia Fu, effect all specific rigidity supporting structure is good.

Four description of drawings

Fig. 1 is the rigidity supporting structure schematic representation of one of background technique

Fig. 2 is a single-ripple elastic tank structural representation of the present utility model

Fig. 3 is the single-ripple elastic tank structural representation that the utility model is arranged in groups

Five embodiments

The purpose of this utility model is to realize like this, the single-ripple elastic tank body (Fig. 3 discipline 1) that forms through the machining manufacturing with forged steel, built-in steel Zhi Tie (Fig. 3 discipline 2), last plane of Zhi Tie and single-ripple elastic tank body upper port plane seam crossing, weld sealing through electric welding, turbine oil (Fig. 3 discipline 3) fills in the oil-feed tank.After in groups the single-ripple elastic tank that is full of fluid is installed to the support zone of thrust bearing shoe valve,, the fluid of each fuel tank is interconnected by connecting tube with connecting tube (Fig. 3 discipline 4) each toroidal membrane being coupled together.The load of thrust-bearing passes to single-ripple elastic tank by thrust collar (Fig. 3 discipline 8), runner plate (Fig. 3 discipline 7), thrust bearing shoe valve (Fig. 3 discipline 6), because the single-ripple elastic tank that is interconnected has formed a sealing that is full of fluid and has closed connected system, as shown in Figure 3, according to law of connected vessels, when thrust loading acts on single-ripple elastic tank, by redistributing of oil in the fuel tank, the height of thrust tiling changes with runner plate, the automatic leveling effect of Here it is hydraulic thrust bearing.But in each fuel tank because hydraulic pressure increases the load bear, then since in the connecting vessels oil pressure equal everywhere and all be identical to each fuel tank.Certainly fuel tank outer steel shell---the single-ripple elastic tank thick shell is also born a part of axial thrust load, this part load is also because of not of uniform size the having nothing in common with each other of each fuel tank distortion, but they are less than 3% of fuel tank total load, so load is evenly distributed on the every thrust bearing shoe valve basically.For reducing in fuel tank, to be placed with Zhi Tie, to reduce oil-filled amount owing to temperature variation causes the fuel tank additional stress.In addition when oil accident appears in fuel tank, an iron can bear load, unlikelyly causes the ruined danger of whole unit.In order to reduce turbine oil mass in the fuel tank, can also in fuel tank, place iron hoop (Fig. 2 and Fig. 3 discipline 5).

Claims

1. fuel tank, specifically a kind of single-ripple elastic tank, it comprises the single-ripple elastic tank body, it is characterized in that being placed with Zhi Tie in the single-ripple elastic tank body, prop up plane, iron top and fuel tank upper port plane seam crossing welded seal, be full of turbine oil in the fuel tank, oil box is provided with the connecting tube interface, and single-ripple elastic tank body, Zhi Tie, turbine oil are formed elastic support structure body one single-ripple elastic tank.