CN201940115U - Magnetic filter of turbine oil system - Google Patents
Magnetic filter of turbine oil system Download PDFInfo
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- CN201940115U CN201940115U CN2010206870566U CN201020687056U CN201940115U CN 201940115 U CN201940115 U CN 201940115U CN 2010206870566 U CN2010206870566 U CN 2010206870566U CN 201020687056 U CN201020687056 U CN 201020687056U CN 201940115 U CN201940115 U CN 201940115U
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- turbine oil
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Abstract
The utility model relates to a magnetic filter of a turbine oil system. A plurality of sleeves are arranged in a framework, magnetic steel bars are arranged in the sleeves, and the peripheral edges of the sleeves are provided with a plurality of absorbing needles. Metal iron scraps produced as a result of wear and attached oil sludge of the turbine oil system of a hydro-generating unit can be filtered effectively. Moreover, the magnetic filter is conducive to energy conservation and environmental protection, can be realized easily, is easy to assemble, is convenient to clean and has a low cost.
Description
Technical field
The utility model relates to a kind of magnetic filter, particularly a kind of hydraulic generator unit turbine oil system magnetic filter that is applicable to.
Background technology
Power station turbine oil system generally comprises bearing lubrication and uses oily with oil and Hydraulic Adjustable Speed.The power station bearing generally adopts metal structure, and constantly wearing and tearing produce metallic particles in unit running process.Wherein the load that bears of thrust bearing can be up to 5000～6000 tons (" No. 6 unit axial hydraulic thrusts of Three Gorges left bank real machine test research ", big motor technology, 2005 the 5th phases: 35～39 pages), under the effect of high load capacity, constantly there are a large amount of metallic particles to produce and pollution turbine oil system.In addition, the mutual motion of metal parts such as top guide bearing, lower guide bearing, water pilot bearing and governing system pressure oil pump, main control valve, pilot valve, servomotor, electromagnetism distributing valve all can produce the high rigidity iron filings.
A large amount of metal iron filings have produced fatal threat to the safe operation of hydraulic generator unit.On the one hand, the metal iron filings have played catalytic action to the turbine oil deterioration, have quickened the turbine oil deterioration, make the turbine oil system produce a large amount of greasy filth; On the other hand, the metal iron filings are assembled agglomerating under the effect of greasy filth, in hydraulic speed regulation system, cause the bite of crucial control assemblies such as main control valve, pilot valve, further cause the paralysis of whole unit, brought huge threat for electrical production and power grid security.As 2008 to 2009, certain power station caused governing system pilot valve jam because of the metal iron filings, thereby caused unit by forced-stopping machine 2 times.If separate unit machine capacity calculates according to 125MW, 0.3 yuan/Kwh of rate for incorporation into the power network calculates, and single day separate unit unit of compressor emergency shutdown electric quantity loss can reach how 100 ten thousand yuan, can reach how 500 ten thousand yuan for single day separate unit unit of the unit electric quantity loss of separate unit machine capacity 700MW!
At present, turbine oil filters and adopts filter paper, metal powder sintered and wire netting candle filter usually, also can adopt electrostatic oil filter.For the former its shortcoming be: one, very poor to the iron powder filter effect below 1 micron usually, can not satisfy the requirement of Hydropower Plant safe operation; Two, filter element life is short, is disposable filter, the cost of use height.For electrostatic oil filter, can filter the metallic particles below 1 micron preferably, but its shortcoming is: one, use cost is too high; Two, electrostatic oil filter is for the requirement harshness of moisture, the moisture of trace will cause equipment normally not move in the turbine oil, and hydraulic generator unit axial-flow rotary propeller type unit especially, moisture is higher in the turbine oil, so this oil filter is unsuitable for power station turbine oil system; Three, electrostatic oil filter through-current capability is little, can only be used for turbine oil system bypass line, can not reach the effect that the turbine oil system filters fully.In addition, be that the electric energy that the former or the latter need to continue need provide high-pressure electrostatic as power, the especially latter that equipment moves, neither environmental protection is also uneconomical.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of turbine oil system magnetic filter, effectively filtered water turbine generator group turbine oil system wear metal iron filings and adhere to greasy filth, and energy-conserving and environment-protective, realize easily, assembling is simple, it is convenient, with low cost to clean.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of turbine oil system magnetic filter, many sleeve pipes are installed in the framework, and magnetic link is installed in the sleeve pipe.
The cylindrical of described sleeve pipe is provided with many absorption pins.
Described framework is a plane framework.
At least two frameworks are hinged.
Described framework is a space framework.
Also be provided with handle on the described framework.
The utility model is by adopting mounting sleeve in the framework, magnetic link is installed in the sleeve pipe, and on the cylindrical of sleeve pipe, be provided with many absorption pins structures, thereby it is relatively poor to minute metallic particle filter effect in the turbine oil to overcome conventional filter, electrostatic oil filter is to shortcomings such as moisture requirement harshnesses, this filter utilizes the mobile as power of turbine oil itself, energy-conserving and environment-protective simultaneously.When the turbine oil of circulation passes through this oil magnetic grid, magnetic metal particle and the impurity such as greasy filth that adhere on it all can be adsorbed by the magnetized stainless steel sleeve pipe of high magnetic force rod iron in the oil magnetic grid, avoided the magnetic technique iron filings to enter valve body in the generating set governing system, caused the valve body jam with turbine oil; Thereby avoided the mandatory shutdown of unit.And this filter easy disassembling; Extract magnetic link during cleaning out, can clean easily; Can use repeatedly; Utilize self power as the energy, energy-conserving and environment-protective reduce maintenance cost.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of the another kind of embodiment of the utility model.
Fig. 3 is the A-A cutaway view of Fig. 1.
The specific embodiment
In Fig. 1, Fig. 2, a kind of hydraulic generator unit turbine oil system magnetic filter that is applied to, the framework 1 that comprises the stainless steel that is fit to the oil circuit size, the sleeve pipe 2 of many stainless steels is installed in the framework, have equally distributed many absorption pins 4 on the cylindrical of sleeve pipe 2, be used for ADSORPTION OF GOLD metal particles and greasy filth impurity; The synthetic extraordinary magnetic link 3 of rare earth element is installed in the sleeve pipe 2, and the magnetic link 3 of sleeve pipe 2 and high magnetic force adopts nut to fix.Framework 1 and sleeve pipe 2 constitute thicker filter screen, filter bigger impurity in the turbine oil.Tiny metallic particles in the turbine oil comprises the metallic particles that 1um is following and the greasy filth impurity of absorption thereof, under the effect of the magnetic link 3 of high magnetic force, is adsorbed on the absorption pin of sleeve pipe 2, thereby reaches the effect that turbine oil is filtered.
Magnetic link adopts the synthetic extraordinary magnetic link of high-intensity magnetic rare earth element in the utility model, and magnet steel surface magnetic force has fine suction-operated up to 12000 Gausses to the magnetic metal particle in the turbine oil; In turbine oil, because the metallic particles volume is very little, below 1um, have very big specific area mostly, non-magnetic impurities such as greasy filth are easy to adsorb on it, and are adsorbed on together on the sleeve pipe 2 of magnetic link outside with metallic particles.
The utility model is at magnetic metal impurity particle diameter features of smaller in the turbine oil, at the sleeve pipe employing stylus structure that is used to adsorb magnetic metal particle, as shown in Figure 3, to reduce the overcurrent flow velocity, to increase adsorption surface area, strengthen adsorption filtration effect to metallic particles impurity.
Be used to adsorb the sleeve pipe 2 and the magnetic link employing split-type structural that is used to produce high-intensity magnetic of magnetic metal particle in the utility model, and adopt fixed by nut, easy accessibility.In oily magnetic grid cleaning process, as long as the magnetic link 3 of sleeve pipe 2 is extracted out, the impurity that adsorbs on it comes off naturally, cleans easy.
The utility model utilizes flowing as power of turbine oil self, need not external energy, energy-conserving and environment-protective.
Framework in the utility model adopts the filtered version of at least two kinds of structures, a kind of embodiment is board-like, promptly adopt plane framework, as shown in fig. 1, two frameworks 1 are hinged, can fold, middle be the hinge connection, each sleeve pipe 2 evenly distributes with center line, and centre-to-centre spacing can be regulated as required, a handle 5 is respectively welded at the framework two ends, convenient lifting; Another kind of embodiment is a cage, promptly adopts the space framework of rectangle, as shown in Figure 2.Each sleeve pipe 2 is staggered between two faces of framework 1 evenly to distribute.According to operating mode herein the framework 1 of cage also can adopt other shape, for example trapezoidal.The oily magnetic grid framework of cage is positioned over the exit of oil return pipe, and the turbine oil flow velocity is very fast herein, can tentatively filter turbine oil.Board-like oily magnetic grid is positioned over absolute oil and dirty oil content circle Kong Chu in the oil trap, and the turbine oil flow velocity is slower herein, can reach smart effect of filtering;
The utility model is at power station turbine oil oil trap field condition, and design has special-purpose lifting cleaning means, and under the assistance of this instrument, the staff can sling oily magnetic grid easily, cleans;
According to Q=
Formula calculates the utility model ADSORPTION OF GOLD metal particles and impurity volume, wherein bar magnet diameter R
1, absorption greasy dirt thickness d, diameter R behind the bar magnet absorption greasy dirt
2(R
1+ 2d), effectively adsorb greasy dirt magnetic link 3 radical n, magnetic link 3 absorption greasy dirt effective length L, absorption impurity volume Q.In test, certain unit operation 53 days, leaf filter partly adsorbs impurity 34.5cm
3Another unit operation 74 days, leaf filter partly adsorbs impurity 51.4cm
3
Cause that because of turbine oil system jam unit forced outage number of times for being reduced to zero, has played good filter effect in the test process.
Claims (6)
1. a turbine oil system magnetic filter is characterized in that: many sleeve pipes (2) are installed in the framework (1), magnetic link (3) is installed in the sleeve pipe (2).
2. a kind of turbine oil according to claim 1 system magnetic filter, it is characterized in that: the cylindrical of described sleeve pipe (2) is provided with many absorption pins (4).
3. a kind of turbine oil according to claim 1 system magnetic filter, it is characterized in that: described framework (1) is a plane framework.
4. a kind of turbine oil according to claim 3 system magnetic filter, it is characterized in that: at least two frameworks (1) are hinged.
5. a kind of turbine oil according to claim 1 system magnetic filter, it is characterized in that: described framework (1) is a space framework.
6. according to claim 1,3,4 or 5 described a kind of turbine oil system magnetic filters, it is characterized in that: also be provided with handle (5) on the described framework (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206870566U CN201940115U (en) | 2010-12-29 | 2010-12-29 | Magnetic filter of turbine oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206870566U CN201940115U (en) | 2010-12-29 | 2010-12-29 | Magnetic filter of turbine oil system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201940115U true CN201940115U (en) | 2011-08-24 |
Family
ID=44467468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206870566U Expired - Lifetime CN201940115U (en) | 2010-12-29 | 2010-12-29 | Magnetic filter of turbine oil system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201940115U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104334281A (en) * | 2012-03-13 | 2015-02-04 | Amt国际股份有限公司 | Magnetic filter for refining and chemical industries |
| CN104324802A (en) * | 2014-11-14 | 2015-02-04 | 吴伟钊 | Magnetic filtering device |
| US10960405B2 (en) | 2016-03-24 | 2021-03-30 | Air Bp Limited | Magnetic filter |
-
2010
- 2010-12-29 CN CN2010206870566U patent/CN201940115U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104334281A (en) * | 2012-03-13 | 2015-02-04 | Amt国际股份有限公司 | Magnetic filter for refining and chemical industries |
| CN104334281B (en) * | 2012-03-13 | 2017-05-03 | Amt国际股份有限公司 | Magnetic filter for refining and chemical industries |
| CN104324802A (en) * | 2014-11-14 | 2015-02-04 | 吴伟钊 | Magnetic filtering device |
| US10960405B2 (en) | 2016-03-24 | 2021-03-30 | Air Bp Limited | Magnetic filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |