CN207145619U - Generator hydrogen cooling system sealing oil system - Google Patents
Generator hydrogen cooling system sealing oil system Download PDFInfo
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- CN207145619U CN207145619U CN201721117597.3U CN201721117597U CN207145619U CN 207145619 U CN207145619 U CN 207145619U CN 201721117597 U CN201721117597 U CN 201721117597U CN 207145619 U CN207145619 U CN 207145619U
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Abstract
The utility model belongs to technical field of generators, it is related to a kind of generator hydrogen cooling system sealing oil system, including Seal Oil oil tank, vavuum pump, vaccum fuel tank, pressure-regulating valve, main exchange oil pump, check-valves, hydrogen side oil return box etc., main exchange oil pump is installed on the main oil outlet road of vaccum fuel tank；Oil cooler, oil strainer, valve for pressure difference, valve for pressure difference connection sealing ring oil inlet pipe, Seal Oil oil tank connection sealing annular space side oil exit pipe, the oil-out connection vaccum fuel tank of Seal Oil oil tank are sequentially connected behind main oil outlet road；Sealing ring hydrogen side oil exit pipe connects generator defoaming compartment, generator defoaming compartment connection hydrogen side oil return box, the oil-out connection vaccum fuel tank of hydrogen side oil return box, in addition to a casing of three layers for being used to install each part.The utility model is easy to run Operation and maintenance, and sky, the hydrogen side oil sources of two independent loops can be provided to sealing ring, prevents that pressed gas escapes along rotating shaft in generator.
Description
Technical field
A kind of generator hydrogen cooling system sealing oil system is the utility model is related to, belongs to technical field of generators.
Background technology
Because the convenience of electric power is with fast, its service condition is always by as one of index for judging urban modernization.I
State only has 1850MW in the total installation of generating capacity of generating equipment in the early days of foundation, and with economic development, the general assembly of China's generating equipment
Machine capacity also develops the 440700MW to second place of the world rapidly.Although China's installed gross capacity of generating equipments has been positioned at the world
Top, but because China human mortality is numerous, causing China, capacity of installed generator is extremely low per capita, therefore steam turbine generator is used as me
Most important generating equipment is badly in need of developing to Large Copacity at present for state, and an important instruction pointer of steam turbine generator is exactly to cool down
System.Because cooling system is highly important for the cool time of steam turbine generator and production efficiency.At present, adopt both at home and abroad
Cooling medium includes gas, liquid and vapour-liquid and mixes three kinds.Foreign countries have researched and developed large-scale hydrogen_cooling type steamer
Generator and Luftgekuhlte rotierende steam turbine generator, and gradually develop to large capacity turbine.The western countries such as the U.S. and Japan
Having reached can be with the cooling system of trial application 1000MW level steam turbine generators.And research of the China for cooling system then compared with
Evening.Steam turbine generator maximum capacity is only 1000MW at present, therefore is badly in need of increasing to more large turbo-type generator cooling system
Research.
Energy loss can occur in operation for generator, including when the heating of iron core and winding, rotor rotate gas with turning
Air blast frictional heating between son, and excitation loss, bearing friction loss etc..These losses finally all translate into heat,
Generator is caused to generate heat, it is therefore necessary to these heats are discharged into generator in time.
Generator during work because energy conversion, electromagnetic action and mechanical friction can produce certain heat,
The temperature of generator is set to be maintained in the range of material limiting temperature it is necessary to be equipped with generator cooling system.The cooling of generator
Insulation life, the metallicity of generator of development, generator with large turbo-type generator are closely bound up.The power of generator
Bigger, then economy is higher.With the increase of generator power, the unit area heat-sinking capability of generator reduces.So want
Develop large turbo-type generator, just the heat-sinking capability of necessary amplification generator, generator cooling system is development large-size steam turbine
Key.
Utility model content
The purpose of this utility model is to provide a kind of generator hydrogen cooling system sealing oil system, using packaging type knot
Structure, it is easy to run Operation and maintenance, sky, the hydrogen side oil sources of two independent loops can be provided to sealing ring, prevent generator internal pressure
Strength body escapes along rotating shaft.
The utility model is realized by following technical proposals.A kind of generator hydrogen cooling system Seal Oil system
System, including Seal Oil oil tank, vavuum pump, vaccum fuel tank, pressure-regulating valve, it is main exchange oil pump, check-valves, hydrogen side oil return box,
Oil cooler, oil strainer, valve for pressure difference, floated oily flow valve, smoke exhaust, and main friendship is installed on the main oil outlet road of vaccum fuel tank
Oil pump and a check-valves are flowed, and one backflow of main fuel turn manifold parallel connection of pumps bypasses and one pressure of installation is adjusted in backflow bypass
Valve is saved, passes through pressure-regulating valve and the fuel-displaced flow on non-return valve regulation main oil outlet road；Main oil outlet is sequentially connected oil cooling behind road
But device, oil strainer, valve for pressure difference, valve for pressure difference connection sealing ring oil inlet pipe, on the pipeline before valve for pressure difference, after oil strainer
Separate the floating oil flow valve of a branch road connection sealing ring；Seal Oil oil tank connection sealing annular space side oil exit pipe, Seal Oil
Oil tank is connected with smoke exhaust, and the exhaust outlet of vavuum pump also connects smoke exhaust, and the oil-out connection of Seal Oil oil tank is true
Empty fuel tank；Sealing ring hydrogen side oil exit pipe connects generator defoaming compartment, generator defoaming compartment connection hydrogen side oil return box, hydrogen side oil return box
Oil-out connection vaccum fuel tank.
Further preferably, the pipeline between generator defoaming compartment and hydrogen side oil return box is connected with valve for pressure difference, passes through generator
The pressure of pipeline between defoaming compartment and hydrogen side oil return box controls valve for pressure difference.
Further preferably, vaccum fuel tank is also associated with standby outlet line, and standby direct current oil is installed in standby outlet line
Pump and a check-valves, and the backflow in parallel of standby direct current oil pump bypasses and pressure regulation is also installed in backflow bypass
Valve.Standby outlet line also connects oil cooler, oil strainer, valve for pressure difference, and standby outlet line provides standby oil sources, to ensure
Engine health, continuous operation.
Further preferably, include one three layers of casing, lower floor's installation by bolt install main exchange oil pump and it is standby directly
Oil pump is flowed, and oil cooler and oil strainer are installed, main exchange oil pump, standby direct current oil pump, oil cooler and oil strainer four
Person is mounted side by side on the lower floor of casing, and is connected by pipeline, and check-valves, pressure-regulating valve are installed on pipeline, casing
Intermediate layer is the vaccum fuel tank of monoblock type, and vavuum pump is arranged on vaccum fuel tank side, Seal Oil oil tank and hydrogen side oil return box peace
Mounted in the upper strata of casing, valve for pressure difference is also mounted at the upper strata of casing, and draws to enter for connecting sealing ring from the upper strata of casing
The oil-feed mouthpiece of oil pipe, the floating oil flow monitoring pipeline for connecting the oily flow valve of floating, for connecting sealing annular space side
The Seal Oil store oil tank drainback mouthpiece of oil exit pipe, the hydrogen side oil return tank drainback interface for connecting sealing ring hydrogen side oil exit pipe
Pipe.
Further preferably, screen pack is provided with the hydrogen side oil return box, for impurity screening.
Technique effect of the present utility model：Using packaging type structure, it is easy to run Operation and maintenance, can be provided to sealing ring
Sky, the hydrogen side oil sources of two independent loops, prevent that pressed gas escapes along rotating shaft in generator.Can ensure that in sealing ring empty side with
The oil pressure of hydrogen side remains equal, and its pressure difference is limited within the scope of allowing variation, can be taken away because of the phase between sealing ring and axle
The caused heat to motion, it is ensured that sealing ring temperature is with Oil-temperature control within the scope of requiring.Releasably fall to be dissolved in sealing
Saturation hydrogen in oil.Debris in oil is can remove, ensures the cleannes of Seal Oil；It can exclude in bearing chamber and Seal Oil oil tank
Hydrogen that may be present.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：
1. the standby hydrogen side oil return box of direct current oil pump 13. of Seal Oil oil tank 7.
The oily flow valve 2. the oil cooler 14. of vavuum pump 8. floats
3. the smoke exhaust of 9. oil strainer of vaccum fuel tank 15.
4. the sealing ring oil inlet pipe of 10. valve for pressure difference of pressure-regulating valve 16.
5. main exchange oil pump 11. sealing ring 17. seals annular space side oil exit pipe
6. the sealing ring hydrogen side oil exit pipe of 12. generator defoaming compartment of check-valves 18.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of generator hydrogen cooling system sealing oil system include Seal Oil oil tank 1, vavuum pump 2,
Vaccum fuel tank 3, pressure-regulating valve 4, main exchange oil pump 5, check-valves 6, hydrogen side oil return box 13, oil cooler 8, oil strainer 9, pressure
Difference limen 10, floated oily flow valve 14, smoke exhaust 15, and main exchange oil pump 5 and one are installed on the main oil outlet road of vaccum fuel tank 3
Check-valves 6, and the backflow in parallel of main exchange oil pump 5 bypasses and installs a pressure-regulating valve 4 in backflow bypass, passes through
Pressure-regulating valve 4 and check-valves 6 adjust the fuel-displaced flow on main oil outlet road.Oil cooler 8, oil are sequentially connected behind main oil outlet road
Filter 9, valve for pressure difference 10, valve for pressure difference 10 connect sealing ring oil inlet pipe 16, the pipe before valve for pressure difference 10, after oil strainer 9
The floating oil flow valve 14 of branch road connection sealing ring is separated on road, by floating oily flow valve 14 and valve for pressure difference 10 controls,
Can be from trend sealing ring oil-feed.The connection sealing annular space of Seal Oil oil tank 1 side oil exit pipe 17, the row of being connected with of Seal Oil oil tank 1
Lampblack absorber 15, the exhaust outlet of vavuum pump 2 also connect smoke exhaust 15, the oil-out connection vaccum fuel tank 3 of Seal Oil oil tank 1；
Sealing ring hydrogen side oil exit pipe 18 connects generator defoaming compartment 12, and generator defoaming compartment 12 connects hydrogen side oil return box 13, hydrogen side oil return
The oil-out connection vaccum fuel tank 3 of case 13,
Pipeline between generator defoaming compartment 12 and hydrogen side oil return box 13 is connected with valve for pressure difference 10, passes through generator defoaming compartment
The pressure of pipeline between 12 and hydrogen side oil return box 13 controls valve for pressure difference 10.
As shown in figure 1, vaccum fuel tank 3 is also associated with standby outlet line, standby direct current oil is installed in standby outlet line
Pump 7 and a check-valves 6, and the backflow in parallel of standby direct current oil pump 7 bypasses and also installs pressure in backflow bypass
Regulating valve 4.Standby outlet line also connects oil cooler 8, oil strainer 9, valve for pressure difference 10, and standby outlet line provides standby oil
Source, to ensure engine health, continuous operation.
By vaccum fuel tank 3, Seal Oil oil tank 1, hydrogen side oil return box 13 to sealing ring provide two independent loops sky,
Hydrogen side oil sources, prevent that pressed gas escapes along rotating shaft in generator.
Ensure that sealing oil pressure is consistently higher than some rule of gas pressure in machine by float oily flow valve 14 and valve for pressure difference 10
Definite value, and ensure that empty side is equal with the oil pressure maintenance of hydrogen side in sealing ring 11, its pressure difference are limited within the scope of allowing variation
By the coolant seal of oil cooler 8 oil, so as to take away because of the relative motion between sealing ring 11 and axle and caused by
Heat, it is ensured that sealing ring temperature is with Oil-temperature control within the scope of requiring.
The saturation hydrogen being dissolved in Seal Oil is discharged by generator defoaming box 12 and hydrogen side oil return box 13；Hydrogen side oil return
Screen pack is provided with case 13, for impurity screening.
Debris in oil removing is gone by oil strainer 9, ensures the cleannes of Seal Oil；Bearing is excluded by mist extractor blower fan 15
Hydrogen that may be present in room and Seal Oil oil tank.
A series of instruments, instrument are configured in system, monitors the operation of sealing oil system；
Generator hydrogen cooling system sealing oil system of the present utility model, using packaging type structure, it is easy to operation to operate
And maintenance, include one three layers of casing, lower floor's installation by bolt installs it is main exchange oil pump 5 and standby direct current oil pump 7, and pacify
Charge of oil cooler 8 and oil strainer 9, main exchange oil pump 5, standby direct current oil pump 7, oil cooler 8 and oil strainer 9 four are side by side
Connected installed in the lower floor of casing, and by pipeline, and check-valves 6, pressure-regulating valve 4, the centre of casing are installed on pipeline
Layer is the vaccum fuel tank 3 of monoblock type, and vavuum pump 2 is arranged on the side of vaccum fuel tank 3, Seal Oil oil tank 1 and hydrogen side oil return box 13
Installed in the upper strata of casing, valve for pressure difference 10 is also mounted at the upper strata of casing, and is drawn from the upper strata of casing for connecting sealing
It is the oil-feed mouthpiece of ring oil inlet pipe 16, the floating oil flow monitoring pipeline for connecting the oily flow valve 14 of floating, close for connecting
The Seal Oil store oil tank drainback mouthpiece of seal ring sky side oil exit pipe 17, the hydrogen side oil return for connecting sealing ring hydrogen side oil exit pipe 18
Tank drainback mouthpiece.
The main controlling switch for exchanging oil pump 5, standby direct current oil pump 7, oil cooler 8 and oil strainer 9 four is all connected with setting
Put the control cabinet in casing top.
Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art,
On the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (5)
1. a kind of generator hydrogen cooling system sealing oil system, including Seal Oil oil tank, vavuum pump, vaccum fuel tank, pressure
Regulating valve, main exchange oil pump, check-valves, hydrogen side oil return box, oil cooler, oil strainer, valve for pressure difference, float oily flow valve, row
Lampblack absorber, it is characterized in that：Main exchange oil pump and a check-valves, and main fuel turn manifold are installed on the main oil outlet road of vaccum fuel tank
One backflow bypass of parallel connection of pumps simultaneously installs a pressure-regulating valve in backflow bypass, passes through pressure-regulating valve and non-return valve regulation
The fuel-displaced flow on main oil outlet road；Oil cooler, oil strainer, valve for pressure difference, valve for pressure difference connection are sequentially connected behind main oil outlet road
Sealing ring oil inlet pipe, the floating oil of a branch road connection sealing ring is separated on the pipeline before valve for pressure difference, after oil strainer
Flow valve；Seal Oil oil tank connection sealing annular space side oil exit pipe, Seal Oil oil tank are connected with smoke exhaust, the row of vavuum pump
Gas port also connects smoke exhaust, the oil-out connection vaccum fuel tank of Seal Oil oil tank；The connection of sealing ring hydrogen side oil exit pipe generates electricity
Machine defoaming compartment, generator defoaming compartment connection hydrogen side oil return box, the oil-out connection vaccum fuel tank of hydrogen side oil return box.
2. generator hydrogen cooling system sealing oil system according to claim 1, it is characterized in that：Vaccum fuel tank is also connected with
There is standby outlet line, standby direct current oil pump and a check-valves are installed, and standby direct current oil pump is simultaneously in standby outlet line
One backflow bypass of connection simultaneously also installs pressure-regulating valve in backflow bypass.
3. generator hydrogen cooling system sealing oil system according to claim 2, it is characterized in that：Including one three layers
Casing, lower floor's installation installs main exchange oil pump and standby direct current oil pump by bolt, and installs oil cooler and oil strainer, main
Exchange oil pump, standby direct current oil pump, oil cooler and oil strainer are mounted side by side on the lower floor of casing, and connected by pipeline
Connect, and check-valves, pressure-regulating valve are installed on pipeline, the intermediate layer of casing is the vaccum fuel tank of monoblock type, and vavuum pump is installed
In vaccum fuel tank side, Seal Oil oil tank and hydrogen side oil return box are also mounted at casing installed in the upper strata of casing, valve for pressure difference
Upper strata, and from the upper strata of casing draw for connect sealing ring oil inlet pipe oil-feed mouthpiece, for connecting floating oil stream amount
The oily flow monitoring pipeline of floating of valve, the Seal Oil store oil tank drainback mouthpiece for connecting sealing annular space side oil exit pipe, it is used for
Connect the hydrogen side oil return tank drainback mouthpiece of sealing ring hydrogen side oil exit pipe.
4. generator hydrogen cooling system sealing oil system according to claim 1, it is characterized in that：Generator defoaming compartment and
Pipeline between hydrogen side oil return box is connected with valve for pressure difference.
5. generator hydrogen cooling system sealing oil system according to claim 1, it is characterized in that：The hydrogen side oil return box
It is interior to be provided with screen pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721117597.3U CN207145619U (en) | 2017-09-02 | 2017-09-02 | Generator hydrogen cooling system sealing oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721117597.3U CN207145619U (en) | 2017-09-02 | 2017-09-02 | Generator hydrogen cooling system sealing oil system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207145619U true CN207145619U (en) | 2018-03-27 |
Family
ID=61677023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721117597.3U Active CN207145619U (en) | 2017-09-02 | 2017-09-02 | Generator hydrogen cooling system sealing oil system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207145619U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033957A (en) * | 2021-11-05 | 2022-02-11 | 国能国华(北京)电力研究院有限公司 | Oil supply system and control method thereof |
| CN114354179A (en) * | 2021-12-30 | 2022-04-15 | 哈尔滨哈控实业有限公司 | Balance valve testing system and method |
-
2017
- 2017-09-02 CN CN201721117597.3U patent/CN207145619U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033957A (en) * | 2021-11-05 | 2022-02-11 | 国能国华(北京)电力研究院有限公司 | Oil supply system and control method thereof |
| CN114354179A (en) * | 2021-12-30 | 2022-04-15 | 哈尔滨哈控实业有限公司 | Balance valve testing system and method |
| CN114354179B (en) * | 2021-12-30 | 2023-09-26 | 哈尔滨哈控实业有限公司 | Balance valve testing system and method |
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