CN204005165U - A kind of lubricating oil supply system of generator set bearing shell - Google Patents
A kind of lubricating oil supply system of generator set bearing shell Download PDFInfo
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- CN204005165U CN204005165U CN201420464491.0U CN201420464491U CN204005165U CN 204005165 U CN204005165 U CN 204005165U CN 201420464491 U CN201420464491 U CN 201420464491U CN 204005165 U CN204005165 U CN 204005165U
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- gate valve
- oil
- fuel tank
- valve
- bearing shell
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Abstract
The utility model proposes a kind of lubricating oil supply system of generator set bearing shell.Comprise: the next fuel tank (1); The first oil pump (4) being connected with the next fuel tank (1); The safety check (1116) being connected with the first oil pump (4); The gate valve (1122) being connected with safety check (1116); The oil cooler (6) being connected with gate valve (1122); The gate valve (1127) being connected with oil cooler (6); The first filter (7) being connected with gate valve (1127); The gate valve (1129) being connected with the first filter (7); The decompressor (3) being connected with gate valve (1129); The gate valve (1135II) being connected with decompressor (3); The gate valve (1136) being connected with gate valve (1135II); The electric butterfly valve (1136II) being connected with gate valve (1136); The gate valve (1137) being connected with electric butterfly valve (1136II).
Description
Technical field
The utility model relates to technical field of power generation, more specifically, relates to a kind of lubricating oil supply system of generator set bearing shell.
Background technique
Water power plant is that water can be converted to the integration engineering facility of electric energy.Generally comprise the reservoir that formed by dash, outlet structure escape works and Diversion system of hydropower station, power plant building, electromechanical equipment etc.The high water level water of reservoir flows into factory building promotion hydraulic generator unit through diversion system and sends electric energy, then through boosting transformer, switchyard and electric transmission line input electrical network.The Main Function of generator set lubricant oil is exactly to provide enough lubrication and coolings for each bearing shell.
Fig. 1 is the lubricating oil supply system schematic diagram of generator set bearing shell in prior art.
As shown in Figure 1, in prior art, the lubricant oil of unit bearing shell is supplied by upper fuel tank.Now the fuel supply path of lubricant oil is (the 1# lubricating pump fuel feeding of take is example): " 1# oil pump-→ safety check 1116-→ gate valve 1122-→ oil cooler-→ gate valve 1127-→ 1# filter-→ gate valve 1129-→ gate valve 1133-→ upper fuel tank-→ gate valve 1135-→ gate valve 1136-→ electric butterfly valve 1136II-→ gate valve 1137-→ each bearing shell fuel feeding ".
The shortcoming of this method of operation comprises:
(1), lubricating pump must pump oil to the upper fuel tank that has 25 meters high, cause working load large, so oil pump often breaks down, not only serious harm unit safety, and increase operation and maintenance cost.
(2), need to buy a large amount of lubricant oil and lay at upper fuel tank, increase operating cost.
(3), pipeline is oversize, increases cost of investment and maintenance cost, leaves the potential safety hazards such as pipeline leakage.
(4), when station service disappears or lubricating pump breaks down, will cause and the lubricating pump that flow back into the next fuel tank can not be sent back to upper fuel tank or circulation, form the next fuel tank oil spill accident and waste, even causing the major accident of generator set tile kilning.
Model utility content
The utility model mode of execution proposes a kind of lubricating oil supply system of generator set bearing shell, thereby reduces costs and improve safety in operation.
The technological scheme of the utility model mode of execution is as follows:
A lubricating oil supply system for generator set bearing shell, comprising:
The next fuel tank (1);
The first oil pump (4) being connected with the next fuel tank (1);
The safety check (1116) being connected with the first oil pump (4);
The gate valve (1122) being connected with safety check (1116);
The oil cooler (6) being connected with gate valve (1122);
The gate valve (1127) being connected with oil cooler (6);
The first filter (7) being connected with gate valve (1127);
The gate valve (1129) being connected with the first filter (7); Also comprise:
The decompressor (3) being connected with gate valve (1129);
The gate valve (1135II) being connected with decompressor (3);
The gate valve (1136) being connected with gate valve (1135II);
The electric butterfly valve (1136II) being connected with gate valve (1136);
The gate valve (1137) being connected with electric butterfly valve (1136II), wherein gate valve (1137) is connected with the bearing shell oil supply gallery of generator set.
In one embodiment, also comprise:
The electric butterfly valve (1133II) being connected with gate valve (1129) with decompressor (3) respectively;
The electric butterfly valve (1133) being connected with electric butterfly valve (1133II);
The upper fuel tank (2) being connected with electric butterfly valve (1133);
The gate valve (1135) being connected with upper fuel tank (2);
Gate valve (1135) is connected with gate valve (1135II) with gate valve (1136) respectively.
In one embodiment, also comprise:
The second oil pump (5) being connected with the next fuel tank (1);
The safety check (1117) being connected with the second oil pump (5), wherein safety check (1117) is connected with gate valve (1122);
The gate valve (1128) being connected with oil cooler (6);
The second filter (8) being connected with gate valve (1128);
The gate valve (1130) being connected with the second filter (8).
From technique scheme, can find out, comprise: the next fuel tank (1); The first oil pump (4) being connected with the next fuel tank (1); The safety check (1116) being connected with the first oil pump (4); The gate valve (1122) being connected with safety check (1116); The oil cooler (6) being connected with gate valve (1122); The gate valve (1127) being connected with oil cooler (6); The first filter (7) being connected with gate valve (1127); The gate valve (1129) being connected with the first filter (7); The decompressor (3) being connected with gate valve (1129); The gate valve (1135II) being connected with decompressor (3); The gate valve (1136) being connected with gate valve (1135II); The electric butterfly valve (1136II) being connected with gate valve (1136); The gate valve (1137) being connected with electric butterfly valve (1136II), is connected with the bearing shell oil supply gallery of generator set.
As can be seen here, in the utility model, utilize former lubricating oil pipeline, only need the simple and easy improvement that pipeline and electric butterfly valve and control wiring thereof are realized the generator set lubricant oil method of operation of installing additional.The feature of this design is safety and efficiently.Both guarantee unit safety, saved again hydroelectric station operation and maintenance cost.Be applicable to the various lubricating oil systems of utilizing upper and lower lubricating oil tank to be lubricated, particularly often oil spill accident occur and the lubricating oil system of wasting.Certainly, lubricating pump in service often has an accident and needing often maintenance and cause maintenance cost to remain high with lubricating pump of serious harm unit safety, particularly applicable.
Accompanying drawing explanation
The lubricating oil supply system schematic diagram of generator set bearing shell in Fig. 1 prior art;
The lubricating oil supply system schematic diagram of generator set bearing shell in Fig. 2 the utility model;
Fig. 3 is model utility lubricant oil electric control circuit figure.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
In the utility model, by upper fuel tank fuel feeding, change lubricating pump DFF Direct Fuel Feed into, wherein upper fuel tank can change emergency duty into by participating in operation, thereby saves operating cost.
In the utility model, utilize former lubricating oil pipeline, only need simple and easy pipeline and electric butterfly valve and the control wiring thereof of installing additional, by opening or close corresponding butterfly valve, realize the improvement of the generator set lubricant oil method of operation.The feature of this design is safety and efficiently, and largest benefit is " safety, saving ".Both guarantee unit safety, saved again hydroelectric station operation and maintenance cost.Be applicable to the various lubricating oil systems of utilizing upper and lower lubricating oil tank to be lubricated, particularly often oil spill accident occur and the lubricating oil system of wasting.Certainly, lubricating pump in service often has an accident and needing often maintenance and cause maintenance cost to remain high with lubricating pump of serious harm unit safety, particularly applicable.
The lubricating oil supply system schematic diagram of generator set bearing shell in Fig. 2 the utility model; Fig. 3 is model utility lubricant oil electric control circuit figure.
As shown in Figure 2, the lubricating oil supply system of generator set, comprising: the next fuel tank (1); The first oil pump (4) being connected with the next fuel tank (1); The safety check (1116) being connected with the first oil pump (4); The gate valve (1122) being connected with safety check (1116); The oil cooler (6) being connected with gate valve (1122); The gate valve (1127) being connected with oil cooler (6); The first filter (7) being connected with gate valve (1127); The gate valve (1129) being connected with the first filter (7); Also comprise: the decompressor (3) being connected with gate valve (1129), for reducing oil pressure; The gate valve (1135II) being connected with decompressor (3); The gate valve (1136) being connected with gate valve (1135II); The electric butterfly valve (1136II) being connected with gate valve (1136); The gate valve (1137) being connected with electric butterfly valve (1136II), is connected with the bearing shell oil supply gallery of generator set.
This system also comprises: the electric butterfly valve (1133II) being connected with gate valve (1129) with decompressor (3) respectively; The electric butterfly valve (1133) being connected with electric butterfly valve (1133II); The upper fuel tank (2) being connected with electric butterfly valve (1133); The gate valve (1135) being connected with upper fuel tank (2); Gate valve (1135) is connected with gate valve (1135II) with gate valve (1136) respectively.
This system also comprises: the second oil pump (5) being connected with the next fuel tank (1); The safety check (1117) being connected with the second oil pump (5), wherein safety check (1117) is connected with gate valve (1122); The gate valve (1128) being connected with oil cooler (6); The second filter (8) being connected with gate valve (1128); The gate valve (1130) being connected with the second filter (8).
Exemplarily, the first oil pump (4) is 1# oil pump; The second oil pump (5) is 2# oil pump.
As seen from Figure 3, one end of generator breaker auxiliary contact FDL is connected with throw over switch QK1, and one end is connected with one end of eliminating magnetism of generator switch auxiliary contact MK in addition; Other one end of eliminating magnetism of generator switch auxiliary contact MK is connected with the auxiliary contact of the AC contactor of lubricating pump, the Q1 and the Q2 that comprise two series connection, one end of the auxiliary contact Q2 of the AC contactor of lubricating pump is connected with one end of the auxiliary contact 2ZJ1 of auxiliary reclay 2ZJ again, and other one end of auxiliary reclay 2ZJ1 is connected with the coil of auxiliary reclay 1ZJ.
In Fig. 3:
Auxiliary reclay 1ZJ opens electric butterfly valve, and its outlet normal opened contact is 1ZJ2; The another one normal opened contact 1ZJ1 of auxiliary reclay 1ZJ and the break contact 2ZJ2 of auxiliary reclay 2ZJ series connection, realize the function of auxiliary reclay 1ZJ locking, in like manner, the generator accident of cross-over connection and 1ZJ1 and 2ZJ2 is drawn contact SGJ, equally complete opened butterfly valve and locking, finally reach the change of the lubricant oil method of operation; Auxiliary reclay 2ZJ closes electric butterfly valve, and its outlet normal opened contact is 2ZJ4; The normal opened contact 2ZJ3 of auxiliary reclay 2ZJ realizes the blocking function of auxiliary reclay 2ZJ, completes and closes butterfly valve and locking; AN1 is manual-lock butterfly valve button, and AN2 is manual phase down butterfly valve button; AN3 is the manually opened butterfly valve button of terrain, and AN4 is terrain manual-lock butterfly valve button; D1 is the standard-sized sheet tutorial light of butterfly valve, and D2 is the complete shut-down tutorial light of butterfly valve; DCF is the position limit switch of its butterfly valve.
In conjunction with above-mentioned explanation, the utility model is analyzed, wherein:
1, technical Analysis: the Main Function of generator set lubricant oil is exactly for each bearing shell provides enough lubrication and coolings, so will consider a problem from supply oil mass, supply oil pressure and the cooling aspect of oil temperature.
For example:
(1): supply oil mass:
Look into the single bamboo nest hydroelectric station operation working specification in Mei County and interrelated data, known lubricating pump model: KCB-300, rated flow: 300L/min; Each bearing shell lubricant oil fuel delivery of generator set: just pushing away watt: 180L/min, counter push away watt: 30L/min, radially watt: 50L/min, water guide shoe: 40L/min; So by lubricating pump DFF Direct Fuel Feed, be feasible in each bearing shell supply oil mass demand side.
(2): supply oil pressure:
Look into the single bamboo nest hydroelectric station operation working specification in Mei County and interrelated data, known lubricating pump model: KCB-300, supply oil pressure pressure: 0.36MPa; Each bearing shell lubricant oil fuel feeding pressure pressure of generator set: just pushing away watt: 0.29MPa, counter push away watt: 0.28MPa, radially watt: 0.26MPa, water guide shoe: so 0.2MPa, by lubricating pump DFF Direct Fuel Feed, is also feasible in each bearing shell supply oil pressure demand side.
(3): oil temperature is cooling: because continue to use crude cooler and cooling system, and by after lubricating pump DFF Direct Fuel Feed, lubrication oil circulation speed is accelerated, its cooling effect should be better, so by lubricating pump DFF Direct Fuel Feed, be more feasible in each bearing shell supply oil temperature aspect cooling.
2, safety analysis:
(1), from the lubricating oil pipeline figure shown in Fig. 2 and electric control circuit figure, when generator set normally moves, by the direct supplying lubricating oil of lubricating pump.Now, electric control circuit is normally worked; The fuel supply path of lubricant oil is (the 1# lubricating pump fuel feeding of take is example): " 1# lubricating pump-→ safety check 1116-→ gate valve 1122-→ oil cooler-→ gate valve 1127-→ 1# filter-→ gate valve 1129-→ decompressor (increasing newly)-→ gate valve 1135II (increasing newly)-→ gate valve 1136-→ electric butterfly valve 1136II-→ gate valve 1137-→ each bearing shell fuel feeding ", now electric butterfly valve 1133II (increasing newly) keeps closing.
When lubricating pump breaks down, electric control circuit starts accident emergency program immediately automatically, first auxiliary contact (MK)-→ 1# lubricating pump that passes through auxiliary contact (FDL)-→ eliminating magnetism of generator switch of generator outlet circuit breaker starts the auxiliary contact 1ZJ1 locking that A.C. contactor auxiliary contact (Q1)-→ 2# lubricating pump starts break contact (2ZJ1)-→ auxiliary reclay 1ZJ the process auxiliary reclay 1ZJ of A.C. contactor auxiliary contact (Q2)-→ auxiliary reclay 2ZJ, then opens electric butterfly valve 1133II and makes upper fuel tank in fuel feeding working state; In like manner, when generator set has an accident, its accident is drawn contact (SGJ) also can start accident emergency program automatically, first through accident, draw the auxiliary contact 1ZJ1 locking of break contact (2ZJ1)-→ auxiliary reclay 1ZJ the process auxiliary reclay 1ZJ of contact (SGJ)-→ auxiliary reclay 2ZJ, then open electric butterfly valve 1133II and make upper fuel tank also in fuel feeding working state.In upper fuel tank fuel feeding carries out, the position switch DCF (full open) by electric butterfly valve 1133II can light standard-sized sheet tutorial light (D1), is convenient to remind staff to note.
During accident emergency, the fuel supply path of lubricant oil is: " upper fuel tank-→ gate valve 1133-→ electric butterfly valve 1133II (increasing newly)-→ decompressor (increasing newly)-→ gate valve 1135II (increasing newly)-→ gate valve 1136-→ electric butterfly valve 1136II-→ gate valve 1137-→ each bearing shell fuel feeding ".The explanation of this path, the lubricant oil of upper fuel tank breaks down or when generator set has an accident, also equally for each bearing shell, is supplying lubricant oil at lubricating pump, makes it keep the effect of lubrication and cooling.Generally speaking, even the lubricant oil of these emergency period is all still secure, unit yes safety.
From Fig. 3 also, when the upper fuel tank of expectation manually exits for oil condition, only push-button switch AN1 need be pressed, directly start auxiliary reclay 2ZJ, close electric butterfly valve 1133II.At upper fuel tank, exit for after oil condition, the position switch DCF (contract fully) by electric butterfly valve also can light complete shut-down (D2) tutorial light, is convenient to remind staff to note.
From repacking piping diagram and electric control circuit figure, go back, when thinking that upper fuel tank refuels, first closing gate valve 1135II (increasing newly), then switches to diverter switch QK1 " manually " position and opens electric butterfly valve 1133II (increasing newly), finally starts lubricating pump.And electric butterfly valve 1133II controls and opened or close by two auxiliary reclay 1ZJ and 2ZJ respectively, and two auxiliary reclay lockings mutually again in electric control circuit, avoid opening or closing motion carries out simultaneously, make control wiring safety, reliable.
Consider that automatic control has situation about breaking down, this electric control circuit has also added " automatically, manually, stopping " diverter switch QK1, manual-lock button AN1, manual phase down butterfly valve button AN2 and on-the-spot start button AN3, X button AN4, both can automatically open or close electric butterfly valve 1133II in a distant place, can open or close it by on-site manual again, guaranteeing that unit is safer, reliable.
(2), after application the utility model, when generator set normally moves, the direct supplying lubricating oil of lubricating pump is to each bearing shell, needn't pump oil to the upper fuel tank that has 25 meters high, so the working load of lubricating pump alleviates greatly.This is for lubricating pump and each bearing shell, and even whole generator set all can be safer.
(3), application the utility model after, consider the safe operation of each unit of full station, upper fuel tank and the fuel reserve tank of each unit can also be connected in a suitable manner, this idea is also to consider.Certainly, the difficulty that this idea implements does not have problem technically yet, at this, no longer continues to introduce yet.
3, Economic and Efficiency Analysis:
(1), the saving of operating cost:
Such as, look into the single bamboo nest hydroelectric station operation working specification in Mei County and interrelated data, known upper volume of fuel tank: 5 cubic metres; The next volume of fuel tank: 6.3 cubic metres; According to observing in day-to-day operation, the actual owning amount of upper fuel tank approximately: 5 cubic metres; The actual owning amount of the next fuel tank is approximately: 3.5 cubic metres; After the utility model repacking, each fuel tank fuel quantity as calculated, upper fuel tank primary quantity approximately: 2.8 cubic metres; The next fuel tank primary quantity is approximately: 3.5 cubic metres.
Because the lubricant oil of upper fuel tank is just when generating set accident or lubricating pump fault, just to each bearing shell fuel feeding, finally flow back into the next fuel tank, if now station service disappears or lubricating pump fault, will cause and the lubricating pump that flow back into the next fuel tank can not be sent back to upper fuel tank or circulation, form the next fuel tank oil spill accident and waste.So this will calculate the primary quantity of upper and lower fuel tank, can not waste.
In sum, from economic benefit angle, after repacking, every unit has been saved the lubricant oil of 2.2 cubic metres, if every cubic metre of lubricant oil calculates by 1.8 ten thousand yuan, every unit has just been saved 3.96 ten thousand yuan of operating costs, and 4 units have just been saved 15.84 ten thousand yuan.This is a no small number, and economic benefit is quite obvious.
(2), the saving of maintenance expenses:
After lubricating pump working load alleviates, will inevitably bring the minimizing of day-to-day maintenance.If year 2000 yuan of the maintenance costs of every lubricating pump calculate, 8 lubricating pumps have just been saved 1.6 ten thousand yuan every year.
The above, be only preferred embodiment of the present utility model, is not intended to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a lubricating oil supply system for generator set bearing shell, comprising:
The next fuel tank (1);
The first oil pump (4) being connected with the next fuel tank (1);
The safety check (1116) being connected with the first oil pump (4);
The gate valve (1122) being connected with safety check (1116);
The oil cooler (6) being connected with gate valve (1122);
The gate valve (1127) being connected with oil cooler (6);
The first filter (7) being connected with gate valve (1127);
The gate valve (1129) being connected with the first filter (7); It is characterized in that, also comprise:
The decompressor (3) being connected with gate valve (1129);
The gate valve (1135II) being connected with decompressor (3);
The gate valve (1136) being connected with gate valve (1135II);
The electric butterfly valve (1136II) being connected with gate valve (1136);
The gate valve (1137) being connected with electric butterfly valve (1136II), wherein gate valve (1137) is connected with the bearing shell oil supply gallery of generator set.
2. the lubricating oil supply system of generator set bearing shell according to claim 1, is characterized in that, also comprises:
The electric butterfly valve (1133II) being connected with gate valve (1129) with decompressor (3) respectively;
The electric butterfly valve (1133) being connected with electric butterfly valve (1133II);
The upper fuel tank (2) being connected with electric butterfly valve (1133);
The gate valve (1135) being connected with upper fuel tank (2);
Gate valve (1135) is connected with gate valve (1135II) with gate valve (1136) respectively.
3. the lubricating oil supply system of generator set bearing shell according to claim 2, is characterized in that, also comprises:
The second oil pump (5) being connected with the next fuel tank (1);
The safety check (1117) being connected with the second oil pump (5), wherein safety check (1117) is connected with gate valve (1122);
The gate valve (1128) being connected with oil cooler (6);
The second filter (8) being connected with gate valve (1128);
The gate valve (1130) being connected with the second filter (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464491.0U CN204005165U (en) | 2014-08-18 | 2014-08-18 | A kind of lubricating oil supply system of generator set bearing shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464491.0U CN204005165U (en) | 2014-08-18 | 2014-08-18 | A kind of lubricating oil supply system of generator set bearing shell |
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| Publication Number | Publication Date |
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| CN204005165U true CN204005165U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420464491.0U Expired - Fee Related CN204005165U (en) | 2014-08-18 | 2014-08-18 | A kind of lubricating oil supply system of generator set bearing shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015894A (en) * | 2016-06-24 | 2016-10-12 | 广西三威林产工业有限公司 | Bearing bush lubrication system |
-
2014
- 2014-08-18 CN CN201420464491.0U patent/CN204005165U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015894A (en) * | 2016-06-24 | 2016-10-12 | 广西三威林产工业有限公司 | Bearing bush lubrication system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160818 |