CN207470239U - The oil lubrication auxiliary system of steam turbine - Google Patents
The oil lubrication auxiliary system of steam turbine Download PDFInfo
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- CN207470239U CN207470239U CN201721396257.9U CN201721396257U CN207470239U CN 207470239 U CN207470239 U CN 207470239U CN 201721396257 U CN201721396257 U CN 201721396257U CN 207470239 U CN207470239 U CN 207470239U
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- oil
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- machine
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Abstract
The utility model embodiment provides a kind of oil lubrication auxiliary system of steam turbine, including lubricating oil filter, outlet is connect with the first outlet of oil lubrication auxiliary system；Oil cooler, outlet are connect with the entrance of lubricating oil filter；Main fuel tank, AC Lub oil pump, the first oil ejector and the second oil ejector are equipped in it, the outlet of AC Lub oil pump is connected to the entrance of oil cooler with the outlet of the first oil ejector after in parallel, the outlet of the AC Lub oil pump second outlet in parallel and being connected to oil lubrication auxiliary system also with the outlet of the second oil ejector；The entrance of oil lubrication auxiliary system is connected after the entrance parallel connection of first oil ejector and the second oil ejector；Absolute oil case and the outer oil pump of machine are further included, the entrance of main fuel tank and absolute oil case respectively with oil pump outside machine is connect, and the outlet of the outer oil pump of machine connects the entrance of second outlet and oil cooler respectively.The oil lubrication auxiliary system of the utility model steam turbine ensure that lubrication of the lubricating oil to Turbine Safety, stabilization.
Description
Technical field
The utility model embodiment is related to thermal power plant equipment technical field more particularly to a kind of lubricating oil of steam turbine
Lubricate auxiliary system.
Background technology
Turbine oil system provides lubrication, cooling oil for steam turbine, ensures the normally-open of unit, stopping and fortune
Row, the normal work of turbo-engine lube is the guarantee of Steam Turbine safe and reliable operation.In the prior art, if lubricating oil system
System, which breaks down, not only influences the runnability of unit, off-axis can also be caused to ruin the major accident of machine when serious, cause great warp
Ji loss.For example, during steam turbine is opened or is out of service, if there is event in the AC Lub oil pump of steam turbine
Barrier is difficult to restore in a short time, and Steam Turbine can not be lubricated in time, it is easy to cause the damage of parts.
Utility model content
The oil lubrication auxiliary system for being designed to provide a kind of steam turbine of the utility model embodiment, to ensure vapour
When turbine lubricating system breaks down, unit still can be run under the action of lubricating oil, and unit is avoided to be seriously worn.
According to a kind of oil lubrication auxiliary system of steam turbine of offer of the utility model embodiment, including lubricating oil
Filter, outlet are connect with the first outlet of oil lubrication auxiliary system；Oil cooler, outlet and the lubricating oil mistake of oil cooler
The entrance connection of filter；Main fuel tank, main fuel tank is interior to be equipped with AC Lub oil pump, the first oil ejector and the second oil ejector, exchange profit
The outlet of oil pump is connected to the entrance of oil cooler with the outlet of the first oil ejector after in parallel, the outlet of AC Lub oil pump also with
The outlet of second oil ejector is in parallel and is connected to the second outlet of oil lubrication auxiliary system；First oil ejector and second penetrates oil
The entrance of oil lubrication auxiliary system is connected after the entrance parallel connection of device；Absolute oil case and the outer oil pump of machine are further included, the outer oil pump of machine is set
It puts outside main fuel tank, the entrance of main fuel tank and absolute oil case respectively with oil pump outside machine is connect, and the outlet of the outer oil pump of machine connects the respectively
Two outlets and the entrance of oil cooler.
Optionally, the outlet of the outer oil pump of machine is also connect with the outlet of lubricating oil filter.
Optionally, the bottom of main fuel tank is connect with the entrance of the outer oil pump of machine.
Optionally, machine it is outer be equipped between the entrance of oil pump and absolute oil case the first shut-off valve and/or, the entrance of the outer oil pump of machine
The second shut-off valve is equipped between main fuel tank.
Optionally, the outlet connection first check-valve of the outer oil pump of machine, is equipped between first check-valve and the entrance of oil cooler
Third shut-off valve is equipped with the 4th shut-off valve between first check-valve and second outlet.
Optionally, the outlet of lubricating oil filter connects first outlet by the 5th shut-off valve, and first check-valve passes through the
Six shut-off valves connect first outlet.
Optionally, the outlet of AC Lub oil pump is parallel with third check-valves and the 4th check-valves；First oil ejector goes out
Mouthful the 5th check-valves of connection, the outlet connection second check-valve of the second oil ejector, after third check-valves and the 5th check-valves parallel connection
Connect the entrance of oil cooler；Second outlet is connected after 4th check-valves and second check-valve parallel connection.
The oil lubrication auxiliary system provided according to the utility model embodiment is by being separately provided oil pump outside a machine, so
Main fuel tank and absolute oil case are connected to the entrance of oil pump outside machine respectively afterwards, the lubricating oil in main fuel tank and absolute oil case is transported to machine
In outer oil pump, and the outlet of the outer oil pump of machine is allowed to connect the second outlet of oil cooler and oil lubrication auxiliary system respectively, this
Sample can when cannot be lubricated to steam turbine, the outer oil pump of machine can conduct for equipment failure in the lubricating system of steam turbine
Power is delivered lubricating oil in the lubricating system of steam turbine, to ensure that steam turbine can work with security and stability, avoid because
Lack the generation of safety accident caused by lubricating oil.
Description of the drawings
Fig. 1 is the structure diagram of the oil lubrication auxiliary system for the steam turbine for showing the utility model embodiment.
Reference sign：
1st, oil cooler；2nd, lubricating oil filter；3rd, main fuel tank；4th, AC Lub oil pump；5th, the first oil ejector；6th, it second penetrates
Oily device；7th, absolute oil case；8th, the outer oil pump of machine；9th, first outlet；10th, second outlet；11st, entrance；12nd, the first shut-off valve；13rd, second
Shut-off valve；14th, first check-valve；15th, third shut-off valve；16th, the 4th shut-off valve；17th, second check-valve；18th, the 5th shut-off valve；
19th, the 6th shut-off valve；20th, third check-valves；21st, the 4th check-valves；22nd, the 5th check-valves.
Specific embodiment
The exemplary embodiment of the utility model embodiment is described in detail below in conjunction with the accompanying drawings.
Connection relation in the present embodiment is the connection carried out by oil pipeline in steam turbine.
According to a kind of oil lubrication auxiliary system of steam turbine of offer of the utility model embodiment, including lubricating oil
Filter 2, outlet are connect with the first outlet 9 of oil lubrication auxiliary system；Oil cooler 1, the outlet of oil cooler 1 and lubrication
The entrance connection of oil strainer 2；Main fuel tank 3, main fuel tank 3 is interior to penetrate oil equipped with AC Lub oil pump 4, the first oil ejector 5 and second
Device 6, the outlet of AC Lub oil pump 4 are connected to the entrance of oil cooler 1, exchange lubrication with the outlet of the first oil ejector 5 after in parallel
The outlet of oil pump 4 is also in parallel with the outlet of the second oil ejector 6 and is connected to the second outlet 10 of oil lubrication auxiliary system；The
The entrance 11 of oil lubrication auxiliary system is connected after the entrance parallel connection of one oil ejector 5 and the second oil ejector 6；Further include absolute oil case
7 and the outer oil pump 8 of machine, the outer oil pump 8 of machine be arranged on outside main fuel tank 3, main fuel tank 3 and absolute oil case 7 connect respectively with the entrance of oil pump outside machine 8
It connects, the outlet of the outer oil pump 8 of machine connects the entrance of second outlet 10 and oil cooler 1 respectively.
As shown in Figure 1, the lubrication of the lubricating oil of steam turbine is divided into two kinds of operating modes in the present embodiment, the first operating mode is in vapour
Under turbine normal operation, lubricating oil normally lubricates steam turbine, the profit exported at this time by AC Lub oil pump 4
Lubricating oil is divided into two-way, and the first oil circuit is in parallel with the outlet of the second oil ejector 6, then will pass through the second oil ejector 6 and the first oil circuit
Lubricating oil exported, and be lubricated for steam turbine by the second outlet 10 of lubricating oil system；Second oil circuit and first penetrates oil
Entrance after the outlet parallel connection of device 5 again with oil cooler 1 is connect, and the lubricating oil in such second oil circuit and the first oil ejector 5 is defeated
Enter into oil cooler 1, lubricating oil is after the outlet of oil cooler 1 output, using lubricating oil filter 2, then from lubricating oil system
The first outlet 9 of system exports.
Second of operating mode is carried out when the first operating mode breaks down.The failure that the first operating mode occurs has more
Kind, for example, situations such as oil leak occurs for main fuel tank 3, oil leak occurs in oil cooler 1, AC Lub oil pump 4 breaks down.These failures
It will cause to be lubricated for steam turbine with security and stability under the first operating mode, in this case, the present embodiment house
The pipeline of original conveying lubricating oil is abandoned, the lubricating oil in main fuel tank 3 and absolute oil case 7 is all transported to outside machine in oil pump 8, machine
Lubricating oil is divided into two-way by outer oil pump 8, and the first via is delivered directly to the second outlet 10 of lubricating oil system, and this avoid other
Equipment breaks down and influences the transmission of lubricating oil；The entrance of the second tunnel connection oil cooler 1 of the outer oil pump 8 of machine, lubricating oil are primary
By oil cooler 1, lubricating oil filter 2, finally exported from the first outlet of lubricating oil system 9.
The oil lubrication auxiliary system of steam turbine disclosed in the present embodiment is by being separately provided oil pump 8 outside a machine, then
By the entrance of oil pump 8 outside main fuel tank 3 and absolute oil case 7 respectively connection machine, the lubricating oil in main fuel tank 3 and absolute oil case 7 is conveyed
Outside to machine in oil pump 8, and the outlet of the outer oil pump 8 of machine is allowed to connect the second of oil cooler 1 and oil lubrication auxiliary system respectively
Outlet 10, in this way can equipment failure is when cannot be lubricated steam turbine in the lubricating system of steam turbine, the outer oil of machine
Pump 8 can deliver lubricating oil in the lubricating system of steam turbine as power, to ensure that steam turbine being capable of work with security and stability
Make, avoid the generation of the safety accident caused by lacking lubricating oil.
Optionally, outlet of the outlet of the outer oil pump 8 of machine also with lubricating oil filter 2 is connect.
As shown in Figure 1, oil cooler 1 also breaks down in order to prevent, to cause lubricating system that can not be carried out to steam turbine normal
The outlet of oil pump outside machine 8, can connect, outlet and lubricating oil filter due to oil cooler 1 by lubrication with the outlet of oil cooler 1
2 connections so the outlet of the outer oil pump 8 of machine can both connect the entrance of lubricating oil filter 2 by a branch, can also pass through
Another branch gets around oil cooler 1 and lubricating oil filter 2, is directly connected to first outlet 9.Accordingly even when oil cooler 1 is occurring
In the case of failure, the lubricating oil that the outer oil pump 8 of machine transmits still can be defeated by the first outlet 9 of oil lubrication auxiliary system
Go out, steam turbine is lubricated.
Optionally, the bottom of main fuel tank 3 is connect with the entrance of the outer oil pump 8 of machine.
As shown in Figure 1, it remains able to be transported to machine to ensure main fuel tank 3 when there is oil leakage fault or oil mass is less
In outer oil pump 8, the entrance of oil pump outside machine 8 can be connect with the bottom of main fuel tank 3, accordingly even when the interior oil mass of main fuel tank 3
When seldom, remain able to be transported in the outer oil pump 8 of machine, lubricating oil is transferred out by oil pump outside machine 8, steam turbine is lubricated.
Similarly, the entrance of the outer oil pump 8 of machine is connect with the bottom of absolute oil case 7.
Optionally, machine it is outer be equipped between the entrance of oil pump 8 and absolute oil case 7 first shut-off valve 12 and/or, the outer oil pump 8 of machine
The second shut-off valve 13 is equipped between entrance and main fuel tank 3.
As shown in Figure 1, outside machine the entrance of oil pump 8 and absolute oil case 7 directly set the first shut-off valve 12 and/or, outside machine
Second shut-off valve 13 between the entrance of oil pump 8 and main fuel tank 3 is set, can choose whether starter motor according to the needs of steam turbine
Outer oil pump 8 can open the first shut-off valve 12 and the second shut-off valve 13 when needing oil pump 8 outside starter motor, when not needing to start
Outside machine the first shut-off valve 12 and the second shut-off valve 13 can be then closed during oil pump 8.
Optionally, the entrance of the outlet connection first check-valve 14 of the outer oil pump 8 of machine, first check-valve 14 and oil cooler 1 it
Between be equipped with third shut-off valve 15, between first check-valve 14 and second outlet 10 be equipped with the 4th shut-off valve 16.
As shown in Figure 1, the lubricating oil that the outer oil pump 8 of machine exports in order to prevent of first check-valve 14 flows back, ensure lubrication
The one-way flow of oil.By setting 15 and the 4th shut-off valve 16 of third shut-off valve can oil pump 8 exports outside free control machine profit
The second outlet 10 of lubricating oil to oil cooler 1 or oil lubrication auxiliary system exports.
Optionally, the outlet of lubricating oil filter 2 connects first outlet 9, first check-valve 14 by the 5th shut-off valve 18
First outlet 9 is connected by the 6th shut-off valve 19.
Oil cooler 1 breaks down and can not use during the work time in order to prevent, is set in the outlet of lubricating oil filter 2
The 5th shut-off valve 18 is put, in this way when oil cooler 1 breaks down, the 5th shut-off valve 18 is closed, simultaneously closes off third shut-off valve
15 can avoid from oil cooler 1 passing through again.6th shut-off valve 19 can be glossy from lubricating with the lubricating oil that oil pump outside control machine 8 exports
The first outlet 9 of sliding auxiliary system exports.
Optionally, the outlet of AC Lub oil pump 4 is parallel with 20 and the 4th check-valves 21 of third check-valves；First oil ejector
5 outlet connects the 5th check-valves 22, the outlet connection second check-valve 17 of the second oil ejector 6, third check-valves 20 and the 5th
The entrance of oil cooler 1 is connected after 22 parallel connection of check-valves；Second outlet is connected after 17 parallel connection of 4th check-valves 21 and second check-valve
10。
The lubricating oil that 20 and the 4th check-valves 21 of third check-valves can effectively prevent AC Lub oil pump 4 to export occurs back
It flows, similarly 17 and the 5th check-valves 22 of second check-valve can effectively prevent the profit that the second oil ejector 6 and the first oil ejector 5 export
Lubricating oil flows back.
Then the oil lubrication auxiliary system of steam turbine disclosed in the present embodiment will by the way that oil pump outside a machine is separately provided
Main fuel tank and absolute oil case connect the entrance of the outer oil pump of machine respectively, the lubricating oil in main fuel tank and absolute oil case are transported to outside machine oily
In pump, and the outlet of the outer oil pump of machine is allowed to connect the second outlet of oil cooler and oil lubrication auxiliary system respectively, in this way may be used
When cannot be lubricated with the equipment failure in the lubricating system of steam turbine to steam turbine, the outer oil pump of machine can be used as dynamic
Power is delivered lubricating oil in the lubricating system of steam turbine, to ensure that steam turbine can work with security and stability, is avoided because lacking
The generation of safety accident caused by few lubricating oil.
The specific embodiment of the above, only the utility model embodiment, but the protection of the utility model embodiment
Range is not limited thereto, the technical scope that any one skilled in the art discloses in the utility model embodiment
It is interior, change or replacement can be readily occurred in, should all be covered within the protection domain of the utility model embodiment.Therefore, this practicality
The protection domain of new embodiment should be based on the protection scope of the described claims.
Claims (7)
1. a kind of oil lubrication auxiliary system of steam turbine, including：
Lubricating oil filter (2), outlet are connect with the first outlet (9) of the oil lubrication auxiliary system；
Oil cooler (1), the outlet of the oil cooler (1) are connect with the entrance of lubricating oil filter (2)；
Main fuel tank (3), the main fuel tank (3) is interior to be equipped with AC Lub oil pump (4), the first oil ejector (5) and the second oil ejector
(6), the oil cooler is connected to after the outlet of the AC Lub oil pump (4) is in parallel with the outlet of first oil ejector (5)
(1) entrance, the outlet of the AC Lub oil pump (4) is also in parallel with the outlet of second oil ejector (6) and is connected to institute
State the second outlet (10) of oil lubrication auxiliary system；First oil ejector (5) and the entrance of second oil ejector (6)
The entrance (11) of the oil lubrication auxiliary system is connected after parallel connection；
It is characterized in that, further including absolute oil case (7) and the outer oil pump (8) of machine, the outer oil pump (8) of the machine is arranged on the main fuel tank
(3) outside, the entrance of the main fuel tank (3) and the absolute oil case (7) respectively with oil pump (8) outside the machine is connect, the outer oil of the machine
The outlet of pump (8) connects the entrance of the second outlet (10) and the oil cooler (1) respectively.
2. oil lubrication auxiliary system according to claim 1, which is characterized in that the outlet of the outer oil pump (8) of the machine
Outlet also with the lubricating oil filter (2) is connect.
3. oil lubrication auxiliary system according to claim 1, which is characterized in that the bottom of the main fuel tank (3) with
The entrance connection of the outer oil pump (8) of the machine.
4. according to any oil lubrication auxiliary system of claims 1 to 3, which is characterized in that the outer oil pump (8) of the machine
Entrance and the absolute oil case (7) between be equipped with the first shut-off valve (12) and/or, the entrance of the outer oil pump (8) of the machine and described
The second shut-off valve (13) is equipped between main fuel tank (3).
5. according to any oil lubrication auxiliary system of claims 1 to 3, which is characterized in that the outer oil pump (8) of the machine
Outlet connection first check-valve (14), equipped with third between the first check-valve (14) and the entrance of the oil cooler (1)
Shut-off valve (15) is equipped with the 4th shut-off valve (16) between the first check-valve (14) and the second outlet (10).
6. oil lubrication auxiliary system according to claim 5, which is characterized in that the lubricating oil filter (2)
Outlet connects first outlet (9) by the 5th shut-off valve (18), and the first check-valve (14) is connected by the 6th shut-off valve (19)
Connect first outlet (9).
7. according to any oil lubrication auxiliary system of claims 1 to 3, which is characterized in that the exchange lubricating oil
The outlet of pump (4) is parallel with third check-valves (20) and the 4th check-valves (21)；The outlet connection the of first oil ejector (5)
Five check-valves (22), the outlet connection second check-valve (17) of second oil ejector (6), the third check-valves (20) and institute
State the 5th check-valves (22) it is in parallel after connect the entrance of the oil cooler (1)；4th check-valves (21) and described second is stopped
The second outlet (10) is connected after returning valve (17) parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721396257.9U CN207470239U (en) | 2017-10-26 | 2017-10-26 | The oil lubrication auxiliary system of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721396257.9U CN207470239U (en) | 2017-10-26 | 2017-10-26 | The oil lubrication auxiliary system of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470239U true CN207470239U (en) | 2018-06-08 |
Family
ID=62265141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721396257.9U Expired - Fee Related CN207470239U (en) | 2017-10-26 | 2017-10-26 | The oil lubrication auxiliary system of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687813A (en) * | 2022-03-31 | 2022-07-01 | 哈尔滨汽轮机厂有限责任公司 | Fuel tank resistant multifunctional auxiliary circuit assembly and control method of auxiliary circuit assembly |
-
2017
- 2017-10-26 CN CN201721396257.9U patent/CN207470239U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687813A (en) * | 2022-03-31 | 2022-07-01 | 哈尔滨汽轮机厂有限责任公司 | Fuel tank resistant multifunctional auxiliary circuit assembly and control method of auxiliary circuit assembly |
| CN114687813B (en) * | 2022-03-31 | 2023-09-29 | 哈尔滨汽轮机厂有限责任公司 | Multifunctional auxiliary circuit assembly for fuel tank and control method of auxiliary circuit assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180608 Termination date: 20181026 |