CN110153112A - Steam turbine for nuclear power station adjusts Oil System Flushing method - Google Patents
Steam turbine for nuclear power station adjusts Oil System Flushing method Download PDFInfo
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- CN110153112A CN110153112A CN201910392464.4A CN201910392464A CN110153112A CN 110153112 A CN110153112 A CN 110153112A CN 201910392464 A CN201910392464 A CN 201910392464A CN 110153112 A CN110153112 A CN 110153112A
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- Prior art keywords
- oil
- flushing
- pipe
- steam turbine
- nuclear power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0325—Control mechanisms therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
- Control Of Turbines (AREA)
Abstract
The present invention relates to steam turbines for nuclear power station to adjust Oil System Flushing method; its step includes: offer manifold block; manifold block is connect with regulating valve driving mechanism device; drainage line is equipped in manifold block; the both ends of drainage line are respectively oil inlet and oil outlet; the oil inlet of drainage line is connected to the protection oil inlet pipe in regulating valve driving mechanism device, and the protection oil inlet pipe in regulating valve driving mechanism device passes sequentially through the oily main pipe of protection, power oil pipe is connected to fuel tank；It provides and rinses hose, the one end for rinsing hose be connected to the oil outlet of institute drainage line, flushing hose is passed through into oil return pipe far from one end of manifold block and is connected to fuel tank；And play pump and close power oil isolating valve, so that the protection oil in fuel tank is sequentially passed through system main pipe, oily main pipe, protection oil inlet pipe, the drainage line in manifold block, flushing hose, oil return pipe is protected to be back to fuel tank, to complete protection oil flushing.Present invention reduces oil accident risks, improve flush efficiency.
Description
Technical field
The present invention relates to million kilowatt nuclear power station key technology areas, adjust more particularly to a kind of steam turbine for nuclear power station
Oil System Flushing method.
Background technique
Steam turbine for nuclear power station group includes steam turbine adjusting oil system (GFR), steam turbine control system (GRE) and steam turbine
Protection system (GSE).The function of steam turbine adjusting oil system (GFR) is to steam turbine control system (GRE) and steam turbine protection
System (GSE) provides the processed fire-resistant power oil with qualified quality and operating parameter, with transmit energy and have concurrently lubrication,
The functions such as cooling, sealing and antirust.It specifically, is exactly to be adjusted to the operating mechanism or high pressure cylinder of steam turbine high-pressure cylinder shut-off valve
The operating mechanism of valve and the operating mechanism of low pressure (LP) cylinder shut-off valve or the operating mechanism of low pressure (LP) cylinder regulating valve provide temperature and take the photograph for 43
Family name's degree, the fire-resistance oil that pressure is 13.8 megapascal.
With the increase of unit operation circulation, fire-resistance oil is understood degradation and decomposition and is deposited under various composite factors
GFR system fuel feeding and oil return line.Therefore, it is necessary to periodically carry out stringent rush to each oil feed line of GFR system and oil return line
It washes, so that equipment plays its due effect.
In the related technology, GFR system flush scheme need to remove live oil pipe (including oil inlet pipe and oil return line) and
Equipment, and flushing is installed and is shorted equipment, it is connected to each oil inlet pipe of GFR system all with oil return line, to make whole system
Form complete circuit.However, the oil connection flange quantity due to system is more, nuclear power station is every time during overhaul oil flushing
Need to dismount more oil connection flange, this will need to put into a large amount of time and manpower to ensure installation quality, increase peace
Full hidden danger, and repeatedly disassembly and installation oil connection flange is also easy to increase the risk that oil accident occurs, and is unfavorable for GFR system
The raising for flush efficiency of uniting.
Summary of the invention
Based on this, it is necessary to for the not high problem of steam turbine adjusting oil system flush efficiency, provide a kind of nuclear power station vapour
Turbine adjusts Oil System Flushing method.
A kind of steam turbine for nuclear power station adjusting Oil System Flushing method, step include:
Manifold block is provided, the manifold block is connect with regulating valve driving mechanism device, and drainage tube is equipped in the manifold block
Road, the both ends of the drainage line are respectively oil inlet and oil outlet, the oil inlet and regulating valve driving machine of the drainage line
Protection oil inlet pipe in structure device is connected to, and it is female that the protection oil inlet pipe in the regulating valve driving mechanism device passes sequentially through protection oil
Pipe, system main pipe are connected to fuel tank；
It provides and rinses hose, described one end for rinsing hose is connected to the oil outlet of the drainage line, by the punching
The one end of hose far from the manifold block is washed to be connected to by oil return pipe with fuel tank；And
It rises and pumps and close power oil isolating valve, the fire resistant oil in fuel tank is made to sequentially pass through system main pipe, protect oily main pipe, protect
Shield oil inlet pipe, the drainage line in manifold block, flushing hose, oil return pipe are back to fuel tank, to complete protection oil flushing.
The regulating valve driving mechanism device includes that high pressure cylinder adjusts valve activator dress in one of the embodiments,
It sets, the oil return pipe includes high pressure oil return pipe, and the high pressure cylinder regulating valve driving mechanism device includes oil return spiral case, the oil return
Spiral case is connected to the high pressure oil return pipe, described that the described one end of flushing hose far from the manifold block is passed through oil return pipe and oil
The step of case is connected to, specifically:
Dismantle the technique plug on the oil return opening of the oil return spiral case；
The described flushing one end of hose far from the manifold block is connected to the technique plug of the oil return spiral case, to be formed
High pressure washing circuit.
Described one end by the flushing hose far from the manifold block and the oil return snail in one of the embodiments,
The step of technique plug connection of shell, specifically:
Adapter is provided, the adapter offers the first through hole being sequentially connected to, the second through-hole and third through-hole, described
The aperture value of first through hole is greater than the aperture value of second through-hole, and the aperture value of the third through-hole is led to from close to described second
The side in hole to the side far from second through-hole becomes larger；The flushing hose is pacified far from one end of the manifold block
It is connected to loaded on the first through hole and with second through-hole and the third through-hole, by the third through-hole and the oil return snail
The technique plug of shell is connected to.
Before the step of being pumped in one of the embodiments, at described and closing power oil isolating valve, the nuclear power station
Steam turbine adjusting oil system purging method further includes following steps:
The oil pressure experiment of 65bar is carried out, to the adapter to ensure that the protection oil from the flushing hose can
Dilatation decompression is left to the oil return spiral case.
The regulating valve driving mechanism device includes that low pressure (LP) cylinder adjusts valve activator dress in one of the embodiments,
It sets, the oil return pipe includes low-pressure oil return pipe, and the low-pressure oil return pipe is connected to the low pressure (LP) cylinder regulating valve driving mechanism device,
And the oil motor leakage nozzle of the low-pressure oil return pipe is connected to drain pipeline, it is described by the flushing hose far from the collector
The step of one end of block is connected to by oil return pipe with fuel tank, specifically:
The low-pressure oil return pipe is detached from and is blocked by plug low from the low pressure (LP) cylinder regulating valve driving mechanism device
Oil pipe is pushed back for connecting the end of low pressure (LP) cylinder regulating valve driving mechanism device, while dismantling connection is dynamic in the oil of low-pressure oil return pipe
The drain pipeline of machine leakage nozzle；
The oil motor leakage nozzle of described flushing hose one end and the low-pressure oil return pipe far from the manifold block is connected
It connects, to form low-pressure washing circuit.
Before the step of being pumped in one of the embodiments, at described and closing power oil isolating valve, the nuclear power station
Steam turbine adjusting oil system purging method further includes following steps:
The oil pressure experiment of 180bar is carried out, to manifold block to determine manifold block No leakage.
After the step of being pumped in one of the embodiments, at described and closing power oil isolating valve, the nuclear power station
Steam turbine adjusting oil system purging method further includes following steps:
Oil cooler is provided, the oil cooler is connect with the system main pipe；Adjust cooling sea water inlet valve in the oil cooler
The aperture of door is to control the temperature of the fire resistant oil by being discharged in fuel tank.
The oily main pipe of the protection, which is equipped with, in one of the embodiments, protects oily isolating valve, pumps and closes dynamic at described
After the step of power oil isolating valve, it further includes following steps that the steam turbine for nuclear power station, which adjusts Oil System Flushing method:
The aperture for protecting oily isolating valve is adjusted to control flushing flow rate.
In one of the embodiments, after the step of oil flushing is protected in the completion, the steam turbine for nuclear power station tune
Economizer system purging method further includes following steps:
It closes the oily isolating valve of the protection and opens the power oil isolating valve；
Pump is played to complete power oil flushing.
In one of the embodiments, after the step of described pump is to complete power oil flushing, the nuclear power station vapour
It further includes following steps that turbine, which adjusts Oil System Flushing method:
Oil extraction is carried out to each pipeline of system after flushing；
The oil pipe in oil flushing circuit will be protected to dismount again, steam turbine for nuclear power station adjusting oil system tune is set as pre- fortune
Row state.
It is adjusted in Oil System Flushing method in above-mentioned steam turbine for nuclear power station, due to protecting oily main pipe coming oil that can pass through adjusting
Protection oil inlet pipe in valve activator device is connected to the drainage line in manifold block, thus protect oil can continue to by with
The flushing hose of drainage line connection is back to oil return pipe, forms flush loop.Therefore, protection oil flushing process without dismantle into
Oil pipe line needs to dismantle compared with prior art oil inlet pipe and oil return line and re-assemblies, and the present invention is related to during rinsing
The quantity for the oil connection flange for needing to dismount significantly reduces, so as to reduce caused by being dismounted for multiple times oil connection flange
Oil accident risk.In addition, the present invention protects oil that can also rush to the protection oil inlet pipe adjusted in valve activator device
It washes, rinses more comprehensive.
Detailed description of the invention
Fig. 1 is that the steam turbine for nuclear power station of one embodiment of the invention adjusts Oil System Flushing flow diagram；
Fig. 2 is the connection schematic diagram that an embodiment rinses hose and high pressure cylinder regulating valve driving mechanism device in Fig. 1；
Fig. 3 is the connection schematic diagram that an embodiment rinses hose and low pressure (LP) cylinder regulating valve driving mechanism device in Fig. 1；
Fig. 4 is the structural schematic diagram of integrated package in Fig. 2 and Fig. 3；
Fig. 5 is the structural schematic diagram of an embodiment adapter in Fig. 2.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
Body embodiment purpose, it is not intended that in limitation the present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figures 1 to 5, the present invention provides one kind on the basis of existing steam turbine for nuclear power station adjusts oil system
Steam turbine for nuclear power station adjusts Oil System Flushing method, includes the following steps:
Step S10 provides the manifold block connecting with regulating valve driving mechanism device 100 as shown in Figure 1, Figure 2 and Figure 3
200.In one embodiment, manifold block 200 is fixed on the outer casing 110 of regulating valve driving mechanism device 100 using bolt,
Bolt can be the high-strength bolt that performance rate is 12.9 namely the high-strength bolt that tensile strength is 1200MPa.In conjunction with figure
4, manifold block 200 is interior to be equipped with drainage line 210, and the both ends of drainage line 210 are respectively oil inlet 211 and oil outlet 212, oil inlet
The aperture value of mouth 211 is less than the aperture value of oil outlet 212, the oil inlet 211 and regulating valve driving mechanism device of drainage line 210
Protection oil inlet pipe 300a connection in 100, protection oil inlet pipe 300a pass sequentially through the oily main pipe 300b of protection, system main pipe 400 again
It is connected to fuel tank 500.Refering to what is shown in Fig. 2, since protection oil inlet pipe 300a is that (pipeline has influence oil flushing effect to L shape broken pipe
The risk of fruit), but pass through and calculate, under the premise of the main oil pump of GFR is constant pressure variable displacement pump, according to the characteristic of pump itself, punching
It washes flow in process piping and can achieve 200L/min and remain unchanged, therefore, conduit cross-sectional area constant premise constant in flow
Under, flow velocity remains unchanged in pipeline.
Wherein, above-mentioned regulating valve driving mechanism device 100 include high pressure cylinder regulating valve driving mechanism device (refer to Fig. 2) and
Low pressure (LP) cylinder regulating valve driving mechanism device (refers to Fig. 3), and high pressure cylinder regulating valve driving mechanism device includes governor valve driving machine
Structure (HPGV) and high pressure main valve driving mechanism (HPSV), low pressure (LP) cylinder regulating valve driving mechanism device include low-pressure adjusting valve driving mechanism
(LPGV) and low pressure main valve driving mechanism (LPSV).In one embodiment, governor valve driving mechanism (HPGV) and high pressure main valve
The quantity of driving mechanism (HPSV) is all four, low-pressure adjusting valve driving mechanism (LPGV) and low pressure main valve driving mechanism (LPSV)
Quantity is all six.It should be noted that before starting system oil pump carries out protection oil flushing, can to manifold block 200 into
The oil pressure of row 180bar is tested, to ensure 200 No leakage of manifold block.
Step S20, please refers to Fig. 2 and Fig. 4, provides and rinses hose 600.One end and the drainage line of hose 600 will be rinsed
210 oil outlet 212 is connected to, and will be rinsed the one end of hose 600 far from manifold block 200 and is connected by oil return pipe 700 with fuel tank 500
It is logical.In one embodiment, as shown in Fig. 2, when regulating valve driving mechanism device 100 is high pressure cylinder regulating valve driving mechanism device
When, oil return pipe 700 includes that (wherein, high pressure cylinder regulating valve driving mechanism device 100 includes oil return spiral case 120 to high pressure oil return pipe, is returned
Oily spiral case 120 is connected to high pressure oil return pipe), pass through oil return pipe 700 far from one end of manifold block 200 at this point, hose 600 will be rinsed
The step of being connected to fuel tank 500, specifically:
Step S21 dismantles the technique plug 121 of oil return spiral case 120；
Step S22 connects the technique plug 121 for rinsing hose 600 one end and oil return spiral case 120 far from manifold block 200
It is logical, to form high pressure washing circuit.In one embodiment, hose 600 one end and oil return snail far from manifold block 200 will be rinsed
The step of technique plug 121 of shell 120 is connected to, as shown in figure 5, specifically, providing adapter 800, adapter 800 offers suitable
The aperture value of the first through hole 801 of secondary connection, the second through-hole 802 and third through-hole 803, first through hole 801 is greater than the second through-hole
802 aperture value, the aperture value of third through-hole 803 is from the side close to the second through-hole 802 to the side far from the second through-hole 802
It becomes larger.To rinse hose 600 far from one end of manifold block 200 be installed on first through hole 801 and with the second through-hole 802 and the
The connection of three through-holes 803, third through-hole 803 is connected to the technique plug 121 of oil return spiral case 120.Oil when due to protection oil flushing
Press it is larger, and oil return spiral case 120 be aluminium material casting, therefore high pressure oil during rinsing exist the inner cavity of oil return spiral case 120 is broken through
Risk, the present invention by above-mentioned adapter 800 by rinse hose 600 be installed on the technique plug 121 of oil return spiral case 120,
May insure rinse hose 600 in flushing oil liquid can dilatation decompression diffuse in oil return spiral case 120, to reduce high pressure
The risk that oil breaks through 120 inner cavity of oil return spiral case.It, can be with it should be noted that before fuel primer pump carries out protection oil flushing
To adapter carry out the experiment of 65bar oil pressure, with ensure from rinse hose 600 protection oil can dilatation decompression flow to oil return
Spiral case 120.
In other embodiments, it when regulating valve driving mechanism device 100 is low pressure (LP) cylinder regulating valve driving mechanism device, returns
Oil pipe 700 includes low-pressure oil return pipe, and low-pressure oil return pipe is connected to low pressure (LP) cylinder regulating valve driving mechanism device, and low-pressure oil return pipe
Oil motor leakage nozzle be connected to drain pipeline, will rinse hose 600 far from manifold block 200 one end by oil return pipe 700 with
The step of fuel tank 500 is connected to, specifically:
Low-pressure oil return pipe is detached from and is blocked by plug low from low pressure (LP) cylinder regulating valve driving mechanism device by step S21a
Oil pipe is pushed back for connecting the end of low pressure (LP) cylinder regulating valve driving mechanism device, while dismantling connection is dynamic in the oil of low-pressure oil return pipe
The drain pipeline of machine leakage nozzle；
The oil motor for rinsing hose 600 one end and low-pressure oil return pipe far from manifold block 200 is leaked nozzle by step S22a
Connection, to form low-pressure washing circuit.
Step S30, as shown in Figure 1, fuel primer pump (including preposition oil pump 410 and main oil pump 420) and close power oil every
From valve 430 (the power oil isolating valve 430 on specially closing power oil main pipe 400a), make fire resistant oil in fuel tank 500 sequentially
Pass through the drainage line in system main pipe 400, ETV component, the oily main pipe 300b of protection, protection oil inlet pipe 300a, manifold block 200
210, flushing hose 600, oil return pipe are back to fuel tank 500, to complete protection oil flushing.
In one embodiment, with continued reference to FIG. 1, can be carried out from the fire resistant oil that fuel tank 500 is discharged through oil cooler 440 cold
But.For example, can control the fire-resistant being discharged by oil cooler 440 by the aperture for adjusting cooling water inlet valve in oil cooler 440
Oil temperature, system fire resistant oil is converted into protection oil through the ETV component in system, at this point, the isolation on power oil main pipe 400a
Valve 430 is closed, so that system main pipe 400 is connected to form protection oil flushing access with protection oil main pipe 300b.
In one embodiment, with continued reference to FIG. 1, being provided with the first strainer 450 and the second strainer in system main pipe 400
460, the fire resistant oil being discharged by fuel tank 500 successively passes through the first strainer 450, preposition oil pump 410, cold oil in system main pipe 400
ETV component is reached after device 440, the second strainer 460, main oil pump 420.
In one embodiment, with continued reference to FIG. 1, protection oil main pipe 300b, which is equipped with, protects oily isolating valve 310, pump is being played simultaneously
After the step of closing power oil isolating valve 430, it further includes following steps that steam turbine for nuclear power station, which adjusts Oil System Flushing method:
Step S40 is adjusted and is protected the aperture of oily isolating valve 310 to control flushing flow rate.Oily isolating valve is protected by changing
310 aperture can also control pressure during rinsing.
In one embodiment, after completing the step of protecting oil flushing, steam turbine for nuclear power station adjusts Oil System Flushing side
Method further includes following steps:
Step S50a is closed and is protected oily isolating valve 310 and open power oil isolating valve 430；
Step S50b, fuel primer pump is to complete power oil flushing.
In one embodiment, after playing the step of pump is to complete power oil flushing, steam turbine for nuclear power station adjusts oil system
Purging method further includes following steps:
Step S60 carries out oil extraction to each pipeline of system after flushing.
In one embodiment, after the step of each pipeline to system carries out oil extraction, steam turbine for nuclear power station adjusts oil system
Purging method of uniting further includes following steps:
Step S70, will protect the oil pipe in oil flushing circuit to dismount again, and steam turbine for nuclear power station is adjusted oil system tune
It is set as prerun state.Specifically:
For high pressure washing circuit, manifold block 200 is dismantled and in the outer casing of regulating valve driving mechanism device 100
Solenoid valve is set on 110, so that solenoid valve is connected to the piston cylinder in protection oil inlet pipe 300a and outer casing 110 respectively；Simultaneously
Hose 600, and the mounting process plug 121 on oil return spiral case 120 are rinsed in disassembly.
For low-pressure washing circuit, manifold block 200 is dismantled and in the outer casing of regulating valve driving mechanism device 100
Solenoid valve is set on 110, so that solenoid valve is connected to the piston cylinder in protection oil inlet pipe 300a and outer casing 110 respectively；Disassembly
The end part plug of low-pressure oil return pipe is simultaneously connected to low pressure (LP) cylinder regulating valve driving mechanism device, while being dismantled and being rinsed hose 600, will be let out
Leak oil line is connected to the oil motor of low-pressure oil return pipe leakage nozzle.
It is adjusted in Oil System Flushing method in steam turbine for nuclear power station of the present invention, when needing to carry out protection oil flushing to system
When, for high pressure cylinder regulating valve driving mechanism device, it is connected to by being arranged on outer casing 110 with protection oil inlet pipe 300a
Manifold block 200, and be connected to hose 600 is rinsed with manifold block 200 and oil return spiral case 120, can be connected to oil return spiral case
120 high pressure oil return pipe forms high pressure washing circuit, oil inlet pipe (including protection oil main pipe 300b) and is connected to oil return spiral case 120
High pressure oil return pipe without being dismounted in advance.For low pressure (LP) cylinder regulating valve driving mechanism device, it is only necessary to will connect originally
The low-pressure oil return pipe and drain pipeline for being connected to low pressure (LP) cylinder regulating valve driving mechanism device are dismantled, and the oil motor of oil return pipe is leaked
Nozzle is connect by rinsing hose 600 with protection oil main pipe 300b, can form low-pressure washing circuit.
It is adjusted in Oil System Flushing method in above-mentioned steam turbine for nuclear power station, protection oil flushing process is without dismantling oil inlet pipe
(including protection oil main pipe 300b), only needs low-pressure oil return pipe and leakage of the dismantling connection in low pressure (LP) cylinder regulating valve driving mechanism device
Oil pipe, developing technique needs to dismantle oil inlet pipe (including protect oily main pipe) and oil return line (including high pressure compared with prior art
Oil return pipe and low-pressure oil return pipe) and re-assembly, the present invention involves the need for the number of the oil connection flange of dismounting during rinsing
Amount significantly reduces, so as to reduce oil accident risk caused by being dismounted for multiple times oil connection flange.In addition, the present invention protects
Shield oil can also be rinsed the protection oil inlet pipe 300a adjusted in valve activator device 100, rinse more comprehensive.It is existing
GFR time oil flushing scheme duration at least needs 174h, and the GFR oil flushing duration of the present invention only needs 106h, compares existing flushing
Scheme saves 68h altogether, and flush efficiency and economic benefit are higher.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of steam turbine for nuclear power station adjusts Oil System Flushing method, step includes:
Manifold block is provided, the manifold block is connect with regulating valve driving mechanism device, and drainage line, institute are equipped in the manifold block
The both ends for stating drainage line are respectively oil inlet and oil outlet, the oil inlet and regulating valve driving mechanism device of the drainage line
Interior protection oil inlet pipe is connected to, and the protection oil inlet pipe in the regulating valve driving mechanism device passes sequentially through the oily main pipe of protection, is
System main pipe is connected to fuel tank；
It provides and rinses hose, described one end for rinsing hose is connected to the oil outlet of the drainage line, the flushing is soft
One end far from the manifold block is managed to be connected to by oil return pipe with fuel tank；And
It rises and pumps and close power oil isolating valve, the fire resistant oil in fuel tank is made to sequentially pass through system main pipe, protect oily main pipe, protection oil
Drainage line, flushing hose, oil return pipe in branch pipe, manifold block are back to fuel tank, to complete protection oil flushing.
2. steam turbine for nuclear power station according to claim 1 adjusts Oil System Flushing method, which is characterized in that the regulating valve
Driving mechanism device includes high pressure cylinder regulating valve driving mechanism device, and the oil return pipe includes high pressure oil return pipe, the high pressure cylinder
Regulating valve driving mechanism device includes oil return spiral case, and the oil return spiral case is connected to the high pressure oil return pipe, described by the punching
The step of one end of hose far from the manifold block is connected to by oil return pipe with fuel tank is washed, specifically:
Dismantle the technique plug on the oil return opening of the oil return spiral case；
The described flushing one end of hose far from the manifold block is connected to the technique plug of the oil return spiral case, to form high pressure
Flush loop.
3. steam turbine for nuclear power station according to claim 2 adjusts Oil System Flushing method, which is characterized in that it is described will be described
The step of one end of hose far from the manifold block is connected to the technique plug of the oil return spiral case is rinsed, specifically:
Adapter is provided, the adapter offers the first through hole being sequentially connected to, the second through-hole and third through-hole, and described first
The aperture value of through-hole is greater than the aperture value of second through-hole, and the aperture value of the third through-hole is from close to second through-hole
Side to the side far from second through-hole becomes larger；The flushing hose is installed on far from one end of the manifold block
The first through hole is simultaneously connected to second through-hole and the third through-hole, by the third through-hole and the oil return spiral case
The connection of technique plug.
4. steam turbine for nuclear power station according to claim 3 adjusts Oil System Flushing method, which is characterized in that pumped at described
And before the step of closing power oil isolating valve, it further includes walking as follows that the steam turbine for nuclear power station, which adjusts Oil System Flushing method,
It is rapid:
The oil pressure experiment of 65bar is carried out, to the adapter to ensure that the protection oil from the flushing hose being capable of dilatation
Decompression flow to the oil return spiral case.
5. steam turbine for nuclear power station according to claim 1 adjusts Oil System Flushing method, which is characterized in that the regulating valve
Driving mechanism device includes low pressure (LP) cylinder regulating valve driving mechanism device, and the oil return pipe includes low-pressure oil return pipe, and the low pressure is returned
Oil pipe is connected to the low pressure (LP) cylinder regulating valve driving mechanism device, and the oil motor leakage nozzle of the low-pressure oil return pipe is connected to
Drain pipeline, described the step of being connected to the described one end of flushing hose far from the manifold block with fuel tank by oil return pipe, tool
Body are as follows:
The low-pressure oil return pipe is detached from from the low pressure (LP) cylinder regulating valve driving mechanism device and low pressure is blocked by plug and is returned
Oil pipe is used to connect the end of low pressure (LP) cylinder regulating valve driving mechanism device, while dismantling connection is let out in the oil motor of low-pressure oil return pipe
The drain pipeline of fistulae mouth；
One end by the flushing hose far from the manifold block is connect with the oil motor of low-pressure oil return pipe leakage nozzle, with
Form low-pressure washing circuit.
6. steam turbine for nuclear power station according to claim 1 adjusts Oil System Flushing method, which is characterized in that pumped at described
And before the step of closing power oil isolating valve, it further includes walking as follows that the steam turbine for nuclear power station, which adjusts Oil System Flushing method,
It is rapid:
The oil pressure experiment of 180bar is carried out, to manifold block to determine manifold block No leakage.
7. steam turbine for nuclear power station according to claim 1 adjusts Oil System Flushing method, which is characterized in that pumped at described
And after the step of closing power oil isolating valve, it further includes walking as follows that the steam turbine for nuclear power station, which adjusts Oil System Flushing method,
It is rapid:
Oil cooler is provided, the oil cooler is connect with the system main pipe；Adjust cooling water inlet valve in the oil cooler
Aperture is to control the temperature of the fire resistant oil by being discharged in fuel tank.
8. steam turbine for nuclear power station as claimed in any of claims 1 to 7 adjusts Oil System Flushing method, feature exists
In the oily main pipe of the protection was equipped with after the step of protecting oily isolating valve, pumping at described and close power oil isolating valve, described
It further includes following steps that steam turbine for nuclear power station, which adjusts Oil System Flushing method:
The aperture for protecting oily isolating valve is adjusted to control flushing flow rate.
9. steam turbine for nuclear power station according to claim 8 adjusts Oil System Flushing method, which is characterized in that in the completion
After the step of protecting oil flushing, it further includes following steps that the steam turbine for nuclear power station, which adjusts Oil System Flushing method:
It closes the oily isolating valve of the protection and opens the power oil isolating valve；
Pump is played to complete power oil flushing.
10. steam turbine for nuclear power station according to claim 9 adjusts Oil System Flushing method, which is characterized in that at described
After the step of pump is to complete power oil flushing, it further includes walking as follows that the steam turbine for nuclear power station, which adjusts Oil System Flushing method,
It is rapid:
Oil extraction is carried out to each pipeline of system after flushing；
The oil pipe in oil flushing circuit will be protected to dismount again, steam turbine for nuclear power station adjusting oil system tune is set as prerun shape
State.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024495A (en) * | 2020-07-08 | 2020-12-04 | 西安航空制动科技有限公司 | Cylinder seat cleaning tool for aircraft brake device |
| CN112160803A (en) * | 2020-10-20 | 2021-01-01 | 中广核核电运营有限公司 | Method for flushing regulating oil system of steam turbine of nuclear power station |
| CN113982704A (en) * | 2021-09-08 | 2022-01-28 | 华能南京金陵发电有限公司 | Lubricating structure for detecting steam-electricity double-drive steam turbine |
| CN114570715A (en) * | 2022-01-19 | 2022-06-03 | 岭澳核电有限公司 | Flushing device and method for hydraulic oil system of steam turbine of nuclear power station |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58113508A (en) * | 1981-12-26 | 1983-07-06 | Toshiba Corp | Oil flushing device of steam turbine |
| CN102814310A (en) * | 2012-08-24 | 2012-12-12 | 中国华冶科工集团有限公司 | Purging method and device for lubricating oil pipeline system of steam turbine generator unit |
| CN103939155A (en) * | 2014-05-19 | 2014-07-23 | 山东电力建设第三工程公司 | Turbine generator set oil pipeline half-outside oil circulation system |
| CN104841676A (en) * | 2015-05-21 | 2015-08-19 | 中国能源建设集团安徽电力建设第一工程有限公司 | Steam turbine lubricating oil switching washing system and method |
| CN104930021A (en) * | 2015-06-18 | 2015-09-23 | 中国能源建设集团安徽电力建设第一工程有限公司 | Hydraulic oil washing device |
| JP2016125434A (en) * | 2015-01-06 | 2016-07-11 | 株式会社東芝 | Bearing lubricant flow passage selector, cleaning system and oil flushing method |
| CN205591970U (en) * | 2016-05-05 | 2016-09-21 | 湖北省电力建设第二工程公司 | A device for shortening send out motor seal oil circulating flushing time |
-
2019
- 2019-05-13 CN CN201910392464.4A patent/CN110153112B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58113508A (en) * | 1981-12-26 | 1983-07-06 | Toshiba Corp | Oil flushing device of steam turbine |
| CN102814310A (en) * | 2012-08-24 | 2012-12-12 | 中国华冶科工集团有限公司 | Purging method and device for lubricating oil pipeline system of steam turbine generator unit |
| CN103939155A (en) * | 2014-05-19 | 2014-07-23 | 山东电力建设第三工程公司 | Turbine generator set oil pipeline half-outside oil circulation system |
| JP2016125434A (en) * | 2015-01-06 | 2016-07-11 | 株式会社東芝 | Bearing lubricant flow passage selector, cleaning system and oil flushing method |
| CN104841676A (en) * | 2015-05-21 | 2015-08-19 | 中国能源建设集团安徽电力建设第一工程有限公司 | Steam turbine lubricating oil switching washing system and method |
| CN104930021A (en) * | 2015-06-18 | 2015-09-23 | 中国能源建设集团安徽电力建设第一工程有限公司 | Hydraulic oil washing device |
| CN205591970U (en) * | 2016-05-05 | 2016-09-21 | 湖北省电力建设第二工程公司 | A device for shortening send out motor seal oil circulating flushing time |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024495A (en) * | 2020-07-08 | 2020-12-04 | 西安航空制动科技有限公司 | Cylinder seat cleaning tool for aircraft brake device |
| CN112160803A (en) * | 2020-10-20 | 2021-01-01 | 中广核核电运营有限公司 | Method for flushing regulating oil system of steam turbine of nuclear power station |
| CN112160803B (en) * | 2020-10-20 | 2022-12-09 | 中广核核电运营有限公司 | Method for flushing regulating oil system of steam turbine of nuclear power station |
| CN113982704A (en) * | 2021-09-08 | 2022-01-28 | 华能南京金陵发电有限公司 | Lubricating structure for detecting steam-electricity double-drive steam turbine |
| CN114570715A (en) * | 2022-01-19 | 2022-06-03 | 岭澳核电有限公司 | Flushing device and method for hydraulic oil system of steam turbine of nuclear power station |
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