CN2165228Y - Oil Tank for lubricating oil system of steam turbine - Google Patents
Oil Tank for lubricating oil system of steam turbine Download PDFInfo
- Publication number
- CN2165228Y CN2165228Y CN 93240203 CN93240203U CN2165228Y CN 2165228 Y CN2165228 Y CN 2165228Y CN 93240203 CN93240203 CN 93240203 CN 93240203 U CN93240203 U CN 93240203U CN 2165228 Y CN2165228 Y CN 2165228Y
- Authority
- CN
- China
- Prior art keywords
- filter screen
- oil
- fuel tank
- setback
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an oil tank for lubricating oil system of steam turbine, belonging to the device which improves the lubricating condition in the lubricating system. The oil tank is composed of a tank body, a filter net, a drain valve, an oil ejector, an oil return pipe and a strap. The oil tank is characterized in that the filter net comprises a transversely reinforcing rib, vertically reinforcing rib, a stainless steel cloth, a clamp and a bolt. And the cross section of the filter net presents a corrugated and linear section. The transversely reinforcing rib also presents the corrugated and linear section. And the vertically reinforcing rib presents a V shape. The included angle beta of the corrugated line of the filter net is from 40 to 50 deg. One hydrophobic material layer is sprayed at one side of the stainless steel cloth. The oil tank has simple structure and better effect of separating the moisture and the impurity out. And the oil tank can separate out the impurity whose dimension is greater than 140 mu m-80 mu m in the turbine oil, and the life time of the bearing is lengthened.
Description
The utility model belongs to the device that improves lubricating condition in the lubrication system.
Existing power station turbine oil system fuel tank plays a part moisture content, sediment miscellaneous object and bubble in oil storage, the separating oil.See Fig. 1, fuel tank is made up of casing 1, filter screen 2, escape cock 3, injector 4 or oil pump, return tube 5, fixing clamping plate 6 etc., and the filter screen 2 that fuel tank is vertically placed is divided into oil-feed side 7 and fuel-displaced side 8 two-part; Filter screen inserts in the middle of the fixing clamping plate 6, and filter screen is movable pumping board formula structure (as Fig. 2), and it is made up of clamping plate 9, Stainless Steel Cloth 10, stiffening rib 11, bolt 12; Stainless Steel Cloth 10 is 30 orders～80 order metal wire knitted square hole nets; Screen area is limited by fuel tank design capacity and inner space; The transverse section of filter screen 2 is a rectilinear cross-section.
The turbine oil of having worked in lubricating oil system contains pollutants such as the moisture content of a large amount of state of suspension and free state and impurity.Turbine oil flows into fuel tank through return tube, and moisture content relies on the gravity of self to fuel tank bottom sedimentation, and amasss in the bottom; Impurity relies on filter screen interception function and the gravitational settling of self in the fuel tank bottom.The inlet port of injector or oil pump is in fuel-displaced survey, and the turbine oil that sucks after separated is transported to lubricating oil system task again.The water and the impurity that deposit emit through escape cock.
Existing fuel tank deficiency is:
1, the weak effect that separates moisture content: because the separation of moisture content only is the gravity that relies on water particle self, so often have only the big water droplet of a small amount of size to precipitate, and the water particle of state of suspension and most of free state is imported into lubrication system with turbine oil by injector.The turbine oil that contains moisture content is easy to take place emulsification under high-speed stirred, extruding, thereby greasy property is descended, and causes getting rusty and wearing and tearing of system's inner metal surface, and causes the bite of speed governing portion cover, influences the safety and the economical operation of unit.
2, the weak effect of removing impurities: 30 orders that filter screen adopted～80 order Stainless Steel Cloths, 10 filter precisioies are about 630 μ m～220 μ m, and the gap of bearing is generally 150 μ m～80 μ m.If the impurity greater than 150 μ m～80 μ m sizes enters lubricating oil system, puncture oil film, axle journal and bearing shell coal surface are destroyed.Have influence on the safety and the economical operation of unit equally.
The purpose of this utility model provides our improved steam-turbine lubricating system fuel tank, and it contains the linear filter screen of setback, and is simple in structure, the effect of separating moisture content and impurity preferably arranged.
The utility model is achieved in that the structure that changes filter screen, with the transverse section be rectilinear filter screen to change the transverse section into be the linear filter screens of setback, spray a book layer hydrophobic material layer in side of Stainless Steel Cloth.
Below in conjunction with drawings and Examples the utility model is elaborated.
Fig. 1 has the turbine oil system fuel tank now.
Fig. 2 has the filter structure schematic representation now.
Fig. 3 has filter screen A-A sectional drawing now.
Fig. 4 the utility model structural representation.
Filter structure schematic representation after Fig. 5 improves.
Filter screen B-B sectional drawing after Fig. 6 improves.
Filter screen partial enlarged drawing after Fig. 7 improves.
Fig. 8 embodiment schematic representation.
Mark is described as follows among the above figure:
1, casing; 2, filter screen;
3, escape cock; 4, penetrate fuel tank;
5, return tube; 6, fixing clamping plate;
7, oil-feed side; 8, fuel-displaced side;
9, clamping plate; 10, Stainless Steel Cloth;
11, stiffening rib; 12, bolt;
13, horizontal stiffening rib; 14, vertical strengthening ribs;
15, hydrophobic material coating; 16, oil resistant rubber bar;
17, ponding chamber; 18, fluviograph;
19, oil through.
Referring to Fig. 4, a kind of turbine oil system fuel tank of the utility model, comprise casing 1, filter screen 2, escape cock 3, injector 4, return tube 5, fixing clamping plate 6, it is characterized in that filter screen is made up of horizontal stiffening rib 13, vertical strengthening ribs 14, Stainless Steel Cloth 10, clamping plate 9, bolt 12, wherein the filter screen transverse section is the linear cross section of setback, laterally stiffening rib also is linear of setback, and vertical strengthening ribs is in the shape of the letter V.Angle β is 40 °～50 ° between filter screen setback line.Laterally between stiffening rib setback line between angle and filter screen setback line angle identical.Also stud with oil resistant rubber bar 16 on the filter screen base.One side of Stainless Steel Cloth is coated with hydrophobic material coating 15.Laterally be furnished with oil through 19 on stiffening rib and the vertical strengthening ribs.
In the present embodiment, laterally stiffening rib 13, vertical strengthening ribs 14 are welded into a whole with clamping plate 9 threes, and two groups of rigid bodies by horizontal stiffening rib, vertical strengthening ribs and clamping plate are clipped in the middle Stainless Steel Wire, are fixedly clamped with bolt 12.
The filter screen size is limited by fuel tank design capacity and inner space, suppose that the filter screen cross section is constant, the Stainless Steel Cloth filter precision is increased to 120 orders～200 orders by 30 orders～80 orders, effectively flow area then reduces by 16%～41%, to the influence of effective flow area, should be about 2.32～2.83 times of the effective flow areas of former filter screen behind the hydrophobic material layer of consideration spraying simultaneously so improve effective flow area of back filter screen.Angle β can satisfy above-mentioned requirements between filter screen setback line in 40 °～50 ° scopes for the effective flow area that increases filter screen must make.
The turbine oil that contains a large amount of state of suspension and free state moisture content and impurity enters fuel tank through return tube.Water particle is clipped in when flowing through filter screen between the turbine oil, because hydrophobic material layer is hydrophobic, under the effect of interfacial tension, turbine oil waltzs through, and moisture content by choked flow in the oil-feed side, can not enter the oil extraction side.Be deposited in the bottom gradually by the moisture content under the choked flow; 120～200 order Stainless Steel Cloth filter precisioies are 140 μ m～80 μ m, and the impurity of different size is clipped in when flowing through filter screen between the turbine oil, and size is being advanced to survey side greater than the impurity of 140 μ m～80 μ m by choked flow, and investing of having is online, and what have is deposited in the bottom.The turbine oil that flows into oily side is the fluid that meets the requirements, by inputing to lubrication system after the injector sucking-off.Moisture content and impurity under the precipitation are bled off by escape cock.
Scribble the eyelet size of the Stainless Steel Cloth of hydrophobic material, the separating effect of moisture content is also had certain influence, mesh is more little, coat hydrophobic material after separating effect good more, so, generally use 100 orders～200 order Stainless Steel Cloths.
Oil resistant rubber bar on the filter screen base has guaranteed between oil-feed side and the fuel-displaced side not can short circuit through-flow.
For ease of amassing knot and observing the moisture content that precipitates, can increase by a ponding chamber 17 in the bottom of casing, and a fluviograph 18(is installed in the above see Fig. 8).In addition, if increase a float-controlled valve and sensor, can realize automatic draining in the ponding chamber interior.
The utility model adopts the linear cross section of setback filter screen, makes effective flow area be increased to 2.32～2.83 times, and moisture has also improved the filtering accuracy to impurity in the effect after guaranteeing the spraying hydrophobic material, so the utlity model has following features:
1, can separate the suspended state of turbine oil central zone and the moisture content of free state, effectively prevent the generation of turbine oil emulsion, for unit safety and economical operation provide condition.
2, can isolate that size has improved the bearing working reliability greater than the impurity of 140 μ m～80 μ m in the turbine oil, prolong bearing life.
3, simple in structure, it is convenient now to move the fuel tank transformation.
Claims (5)
1, a kind of turbine oil system fuel tank, comprise casing 1, filter screen 2, escape cock 3, injector 4, return tube 5, fixing clamping plate 6, it is characterized in that filter screen is made up of horizontal stiffening rib 13, vertical strengthening ribs 14, Stainless Steel Cloth 10, clamping plate 9, bolt 12, wherein the filter screen transverse section is the linear cross section of setback, laterally stiffening rib also is linear of setback, vertical strengthening ribs is in the shape of the letter V, laterally angle is identical with filter screen setback wire clamp angle between stiffening rib setback line, and a side of Stainless Steel Cloth is coated with hydrophobic material coating 15.
2, by the described turbine oil system fuel tank of claim 1, it is characterized in that angle β is 40 °～50 ° between filter screen setback line.
3, by the described turbine oil system fuel tank of claim 1, it is characterized in that also studding with on the filter screen base oil resistant rubber bar 16.
4, by the described turbine oil system fuel tank of claim 1, it is characterized in that being furnished with on horizontal stiffening rib and the vertical strengthening ribs oil through 19.
5,, it is characterized in that increasing a ponding chamber 17, and a fluviograph 18 is installed in the above in the bottom of casing by the described turbine oil system fuel tank of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93240203 CN2165228Y (en) | 1993-09-27 | 1993-09-27 | Oil Tank for lubricating oil system of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93240203 CN2165228Y (en) | 1993-09-27 | 1993-09-27 | Oil Tank for lubricating oil system of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2165228Y true CN2165228Y (en) | 1994-05-18 |
Family
ID=33814523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93240203 Expired - Fee Related CN2165228Y (en) | 1993-09-27 | 1993-09-27 | Oil Tank for lubricating oil system of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2165228Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718213B (en) * | 2009-12-01 | 2013-04-03 | 中国广东核电集团有限公司 | Steam turbine adjusting oil system and steam turbine set |
| CN104895853A (en) * | 2015-06-09 | 2015-09-09 | 苏州拓科仪器设备有限公司 | Oil-water separated hydraulic oil tank |
-
1993
- 1993-09-27 CN CN 93240203 patent/CN2165228Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718213B (en) * | 2009-12-01 | 2013-04-03 | 中国广东核电集团有限公司 | Steam turbine adjusting oil system and steam turbine set |
| CN104895853A (en) * | 2015-06-09 | 2015-09-09 | 苏州拓科仪器设备有限公司 | Oil-water separated hydraulic oil tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |