CN106437877A - Standby system for conventional island control oil of nuclear power station and treatment method for control oil - Google Patents
Standby system for conventional island control oil of nuclear power station and treatment method for control oil Download PDFInfo
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- CN106437877A CN106437877A CN201610842466.5A CN201610842466A CN106437877A CN 106437877 A CN106437877 A CN 106437877A CN 201610842466 A CN201610842466 A CN 201610842466A CN 106437877 A CN106437877 A CN 106437877A
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- fuel tank
- control
- oil
- channel
- input
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a standby system for conventional island control oil of a nuclear power station and a treatment method for control oil. The standby system comprises a standby oil tank, a filter channel and a plurality of pipeline valves, wherein the standby oil tank is connected with a control oil tank for carrying out online oil compensation on the control oil tank; the input end of the filter channel is separately connected with the output end of the control oil tank and the output end of the standby oil tank; the output end of the filter channel is separately connected with the input end of the control oil tank and the input end of the standby oil tank for filtering exhausted oil of the control oil tank or the standby oil tank; and the plurality of pipeline valves are correspondingly connected to the input ends and the output ends of the control oil tank, the standby oil tank and the filter channel separately for correspondingly opening or closing the input end or the output end of the control oil tank and/or the standby oil tank according to an operation state of the control oil tank. The standby system disclosed by the invention can improve safety of unit operation, and prolongs the service life of control oil.
Description
Technical field
The present invention relates to nuclear power station technical field, more particularly to a kind of nuclear power station conventional island control oily back-up system and to control
Control oil treatment process in liquefaction case.
Background technology
The operation principle of nuclear power station is to take away the heat of nuclear reactor generation by the cooling medium in primary Ioops, absorbs heat
Primary Ioops medium after amount flows through the tube side of steam generator, heats the secondary circuit feedwater of shell-side, is allowed to be converted into saturated vapor
The power set of supply secondary circuit, saturated vapor expansion work in steam turbine, drive and steam turbine generator high-speed rotation is sent out, by heat
Electric energy can be converted into.
Isolating valve and regulating valve are provided with the high and low cylinder pressure steam inlet pipe road of steam turbine, in order to send out in Unit Commitment and load
The quantity of steam for entering steam turbine is adjusted during changing, and quick closedown blocking steam goes successively in the case that steam turbine is threaded off
Steam turbine.Turbine control oil system is to provide power oil by the servomotor to stop valve, tune valve, carrys out control valve
Opening and closing, as the important system of unit safety operation, when controlling oily hair life leakage or oil level too low, it will triggering
Report to the police and chaser signal.
Original Control ＆ Protective includes fuel tank, main oil pump, manostat, feeding and return line road and cools down regenerating unit etc. mainly
Part, one main oil pump operation during normal operation, another is standby.Cooling regenerative circuit adopts duplex pump, has two-way single
Loop, a road supplies cooling circuit, and by the air-cooled or water cooling plant cooling control oil in loop, another road supplies regenerative circuit, leads to
Chemistry and the accurate filter of regenerating unit is crossed, improves the chemical quality of oil product.
The Control ＆ Protective of Turbo-generator Set does not consider the operating mode of online repairing in design, and operations staff is according to existing
A certain amount of control oil of interim oil drum storage is placed in being actually needed in grease chamber for field, and when repairing is needed, connection flexible pipe passes through
Oil is squeezed into control fuel tank by mobile hydraulic pump.Control oil has certain corrosivity, suction gas or skin to contact all can be to people
Body health causes damage, and is not suitable for carrying out manual operation in open container, and the interim oil drum that scene is stacked cannot set
Permanent isolation fire prevention measure is put, there is leakage and fire risk.
Content of the invention
The present invention is directed to problems of the prior art, there is provided a kind of oily back-up system of nuclear power station conventional island control and
To controlling oil treatment process, it is possible to increase the safety of unit operation, and extend the service life of control oil.
The technical scheme that the present invention is proposed with regard to above-mentioned technical problem is as follows：
On the one hand, the present invention provides a kind of nuclear power station conventional island control oily back-up system, including：
Reserve fuel tank, connection control fuel tank, for carrying out online repairing to the control fuel tank,
Filtration channel, the input of the filtration channel connects the output of the control fuel tank and the reserve fuel tank respectively
End, the outfan of the filtration channel connects the input of the control fuel tank and the reserve fuel tank respectively, for described
The oil extraction of control fuel tank or the reserve fuel tank is filtered；And,
Multiple pipeline valves, are connected respectively in the control fuel tank, the reserve fuel tank and the filtration channel
Input and outfan, for according to control fuel tank running status, respectively correspondence open or close described control fuel tank and/or
The input of reserve fuel tank or outfan, realize carrying out online repairing or to controlling oil to carry out in-line purification to the control fuel tank
Process.
Further, the back-up system also includes：For connecting the control assembly of each pipeline valve；The mistake
The oil filter being connected with filter passage for being filtered to the control oil of the control fuel tank or reserve fuel tank output, institute
The two ends for stating oil filter are correspondingly provided with pipeline valve at least described in respectively, and the control assembly is used for controlling the filtration channel
On pipeline valve all the time be in open mode.
Further, the back-up system also includes：Be connected to described control fuel tank outfan the first output channel and
It is connected to the second output channel of the reserve fuel tank outfan, and the first input for being connected to the control fuel tank input
Passage and the second input channel of the reserve fuel tank input is connected to, the input of the filtration channel connects described respectively
First output channel and second output channel, the outfan of the filtration channel connect respectively first input channel and
Second input channel, is all correspondingly arranged on pipeline valve described in each input or output channel,
The control assembly is additionally operable to the working condition according to the control fuel tank, controls in each input or output channel
Pipeline valve opening and closing, described control fuel tank liquid level low when, control first input channel and described second respectively
Output channel is opened, and first output channel and second input channel are closed, and the control fuel tank is carried out
Line repairing；
During the quality decline of the control oil in the control fuel tank, control first input channel and described the respectively
One output channel is opened, and second input channel and second output channel are closed, online net to controlling oil to carry out
Change is processed.
Further, the control assembly is additionally operable to control the pass of first output channel and first input channel
Close, and second input channel and second output channel are opened, and start the oil filter, to the reserve fuel tank
The control oil of the control oil of middle injection or storage carries out self-circulation purifying process.
Further, the control assembly is additionally operable to during unit maintenance, controls first input channel and described
Second output channel is closed, and second input channel and the first output channel are opened, and starts the oil filter, by institute
The control oil that states in control fuel tank imports the reserve fuel tank；
After unit maintenance is finished, first output channel and second input channel is controlled to close, and described
First input channel and second output channel are opened, and start the oil filter, by the control oil in the reserve fuel tank
Flow back to the control fuel tank.
Further, the reserve fuel tank also includes：
Thermometer, is connected on casing on the spot, for detecting the oil temperature in the casing；
Electric heater, is arranged in the casing, for heating to the oil in the casing；
Electric heater temperature switch, is arranged on the electric heater, for detecting the wall temperature of the electric heater, and
Wall temperature is more than electric heater described in automatic protection during a limit value；
Tank temperature is switched, and is connected on the casing and connects the electric heater, for being less than detecting oil temperature
During one setting value, control the electric heater to open, when detecting oil temperature a limit value being reached, control the electric heater to close
Close；And,
Liquidometer, is connected on the casing, for detecting the oil level in the casing.
Further, the reserve fuel tank also includes the fire resisting damper being connected on casing, and multiple valves；
The two ends of the liquidometer connect the casing by pipeline, and connect and corresponded on the pipeline of the liquidometer respectively
It is provided with a valve.
Further, the back-up system also includes：Be separately positioned on the filtration channel two ends for for the system
The repairing mouth of system repairing and the sewage draining exit for discharging greasy dirt in the system.
Further, the reserve fuel tank also includes wallboard, top board, base plate and support beam, and the thickness of the wallboard is pressed
Formula is calculated：
Wherein, δwFor the thickness of the wallboard, A is the spacing of the length of the base plate or the support beam, and α is default system
Number, Pc is pressure, [σ]tAllowable stress for sheet material under design temperature.
Further, each passage is all connected by pipeline, and the internal diameter of the pipeline is calculated as follows：
Wherein, Di is internal diameter of the pipeline, and it is Media density that G is mass of medium flow, ρ, and v is velocity of medium.
On the other hand, the present invention provides one kind using above-mentioned back-up system to controlling oil treatment process, including：
The running status of detection control fuel tank；
According to the running status of the control fuel tank, online repairing is carried out to the control fuel tank, or to the control
Control oil in fuel tank carries out in-line purification process.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
By the reserve fuel tank being connected with control fuel tank, unit is made in running, can be to controlling fuel tank to carry out
Line repairing, is that Check System fault and leakage point have striven for the time, improves the safety of unit operation, and human body need not be with control
Liquefaction is contacted, and prevents health from causing damage.By the filtration channel being connected with control fuel tank and reserve fuel tank, unit is made to exist
In running, to controlling oil that purifying regeneration process is carried out, extend the service life of control oil.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of the nuclear power station conventional island control oil back-up system that the embodiment of the present invention one is provided；
Fig. 2 is the structural representation of the control system that the embodiment of the present invention one is provided；
Fig. 3 is the schematic flow sheet to controlling oil treatment process that invention embodiment two is provided.
Specific embodiment
Present in Control ＆ Protective, oil is controlled to reveal and the technical problems such as fire risk in order to solve prior art, this
Invention aims to provide a kind of system that control oil can be processed, and its core concept is：Provide a kind of connection control fuel tank
Reserve fuel tank, connection control fuel tank and reserve fuel tank filtration channel, and be connected respectively control fuel tank, standby oil
Multiple pipeline valves of the input and outfan of case and filtration channel, after the running status for detecting control fuel tank, according to
The running status of control fuel tank, control fuel tank and/or the input of reserve fuel tank or the pipeline valve of output are beaten and are opened or closed
Close, make reserve fuel tank carry out online repairing to control fuel tank, or make filtration channel to controlling oil to filter, realize control oil
In-line purification process.Back-up system provided by the present invention can be to controlling fuel tank to be mended online in unit running process
Oil or to controlling oil to carry out purified treatment, improves the safety of unit operation, and extends the service life of control oil.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
Embodiments provide a kind of oily back-up system of nuclear power station conventional island control, referring to Fig. 1, the back-up system bag
Include：
Reserve fuel tank 1, connection control fuel tank, for carrying out online repairing to the control fuel tank；
Filtration channel 12, the input of the filtration channel 12 connects the control fuel tank and the reserve fuel tank 1 respectively
Outfan, the outfan of the filtration channel 12 connects the input of the control fuel tank and the reserve fuel tank 1 respectively, uses
Filter in the oil extraction to the control fuel tank or the reserve fuel tank 1；And,
Multiple pipeline valves, are connected respectively in the control fuel tank, the reserve fuel tank 1 and the filtration channel 12
Input and outfan, for according to control fuel tank running status, respectively correspondence open or close described control fuel tank and/
Or input or the outfan of reserve fuel tank 1, realize carrying out online repairing or to controlling oil to carry out online to the control fuel tank
Purified treatment.
It should be noted that after back-up system provided by the present invention is installed and rinses and finish, noting in reserve fuel tank 1
Enter control oil, to use when needed.In unit running process, the running status of real-time measure and control fuel tank, and according to control
The running status of liquefaction case corresponds to input or the outfan for opening or closing control fuel tank and/or reserve fuel tank, so as to control
Liquefaction carries out online treatment, i.e., carry out online repairing to control fuel tank, or to controlling oil to carry out in-line purification process etc., so as to carry
The safety of high unit operation, and extend the service life of control oil.
Further, as illustrated in fig. 1 and 2, the back-up system also includes：For connecting the control of each pipeline valve
Component processed 8；It is connected with the filtration channel 12 and enters for the control oil exported by the control fuel tank or the reserve fuel tank 1
The oil filter 2 that row is filtered, the two ends of the oil filter 2 are correspondingly provided with an at least pipeline valve respectively, and the control assembly 8 is used for
Control the pipeline valve on the filtration channel 12 all the time in open mode.
Wherein, filtration channel 12 is provided with oil filter 2 and No. 37 pipeline valves positioned at 2 two ends of oil filter and No. 47 pipes
Road valve, control assembly 8 is used for controlling the opening and closing of oil filter 2 and two pipeline valves 37 and 47.In unit running process, control
Component processed controls No. 37 pipeline valves and No. 47 pipeline valves to be in open mode all the time.
Further, as shown in figure 1, the back-up system also includes：It is connected to the first of the control fuel tank outfan
Output channel 13 and the second output channel 16 for being connected to 1 outfan of the reserve fuel tank, and it is connected to the control fuel tank
First input channel 14 and second input channel 15 for being connected to 1 input of the reserve fuel tank of input, described filtration is led to
The input in road 12 connects first output channel 13 and second output channel 16 respectively, the filtration channel 12 defeated
Go out end and connect first input channel 14 and second input channel 15 respectively, all correspond in each input or output channel
It is provided with pipeline valve described in.
The control assembly 8 is additionally operable to the working condition according to the control fuel tank, controls each input or output channel
On pipeline valve opening and closing, when the liquid level of the control fuel tank is low, control first input channel 14 and described respectively
Second output channel 16 is opened, and first output channel 13 and second input channel 15 are closed, to the control
Fuel tank carries out online repairing.
During the quality decline of the control oil in the control fuel tank, control first input channel 14 and described respectively
First output channel 13 is opened, and second input channel 15 and second output channel 16 are closed, to controlling oil to enter
Row in-line purification is processed.
As depicted in figs. 1 and 2, in each input or output channel, a pipeline valve is all correspondingly provided with, specifically, first is defeated
Go out passage 13 and No. 57 pipeline valves are provided with, the second output channel 16 is provided with No. 27 pipeline valves, in the first input channel 14
No. 67 pipeline valves are provided with, the second input channel 15 is provided with No. 17 pipeline valves.Control assembly 8 can be according to the fortune of control fuel tank
Row state is controlling the opening and closing of each pipeline valve.
When find control fuel tank liquid level low need repairing when, control assembly 8 control No. 17 pipeline valves and No. 57 pipe
Road valve closing, and No. 27 pipeline valves and No. 67 pipeline valves open, while No. 37 pipeline valves and No. 47 pipeline valves
In open mode, then start oil filter 2, control oil is injected control fuel tank from reserve fuel tank 1.The online benefit of control fuel tank
Oil, is that Check System fault and leakage point have striven for the time, improves the safety of unit operation.Unit long-play can be led
Cause control oil quality decline, moisture, impurity and the acidic materials that need to go in oil removing, the neutral pH of holding oil product.When control oil
When the own regenerating unit of system cannot fully meet the requirement of process, by the oil filter of back-up system, oil product can be carried out only
Change is processed, and control assembly controls No. 57 pipeline valves and No. 67 pipeline valves to open, and No. 17 pipeline valves and No. 27 pipelines
Valve closing, while No. 37 pipeline valves and No. 47 pipeline valves are in open mode, then starts oil filter 2, to controlling fuel tank
Interior oil directly flows back to control fuel tank after carrying out purified treatment.The purifying regeneration of control oil is processed, ensure that oily satisfaction
Parameter request, extends the service life of control oil.
Wherein, the oil filter configured by back-up system removes in control oil 100% free water using vacuum separation technology
With 80% dissolving water, remove control oil in 100% free gass and 80% dissolved gas, while being gone by mechanical filter element
Except solid impurity in oil body, the acidic materials for being gone in oil removing by resin filter element.Control oil has good flame resistance and lubricity,
But easily degrade in the presence of water, the metallic particles reaction in water and oil easily produces acidic materials, causes the drop of oil
Solution and the corrosion of metal parts.The process chain for cutting off oil degraded must effectively remove the moisture and air being mixed in oil,
Removal of contamination and the acidic materials for being formed, maintain the stable chemical nature of fire resistant oil, the oil filter of the system configuration, its regeneration work(
Can be more perfect compared with the regenerating unit of Control ＆ Protective itself and efficient, control oil quality can be effectively ensured.
Further, the control assembly is additionally operable to control first output channel 13 and first input channel 14
Closing, and second input channel 15 and second output channel 16 open, and starts the oil filter 2, to institute
The control oil of the control oil or storage of stating injection in reserve fuel tank 1 carries out self-circulation purifying process.
It should be noted that control oil of the control oil in injection reserve fuel tank 1, or reserve fuel tank 1 is deposited through long-time
Chu Hou, need to be to controlling oil to carry out purified treatment.As depicted in figs. 1 and 2, control assembly 8 controls No. 17 pipeline valves and No. 27 pipes
Road valve is opened and No. 57 pipeline valves and No. 67 pipeline valves closings, while at No. 37 pipeline valves and No. 47 pipeline valves
In open mode, oil filter 2 being opened, makes control oil self-loopa be carried out in oil filter 2 and reserve fuel tank 1, until control oil
Quality meets operation demand.
Further, the control assembly 8 is additionally operable to, during unit maintenance, control first input channel 14 and institute
State the second output channel 16 to close, and second input channel 15 and the first output channel 13 are opened, and start the filter
Oil machine 2, the control oil in the control fuel tank is imported the reserve fuel tank 1；
After unit maintenance is finished, first output channel 13 and second input channel 15 is controlled to close, and
First input channel 14 and second output channel 16 are opened, and start the oil filter 2, by the reserve fuel tank 1
Interior control oil flows back to the control fuel tank.
It should be noted that during unit maintenance, control fuel tank internal need to be checked, and to controlling oil tank body
On equipment when being overhauled, control oil emptying that need to be in control fuel tank.Control assembly 8 controls No. 17 pipeline valves and No. 57
Pipeline valve is opened, and No. 27 pipeline valves and No. 67 pipeline valves are closed, while No. 37 pipeline valves and No. 47 pipeline valves
Door is in open mode, then start oil filter 2, and the control oil in control fuel tank is imported in reserve fuel tank 1.In control fuel tank inspection
Repair after finishing, control assembly 8 controls No. 27 pipeline valves and No. 67 pipeline valves to open, and No. 17 pipeline valves and No. 57 pipes
Road valve closing, while No. 37 pipeline valves and No. 47 pipeline valves are in open mode, then starts oil filter 2, you can will be standby
Refilled in control fuel tank with the control oil in fuel tank 1.During unit maintenance, the interim row for receiving from control fuel tank
Oil, is easy to control internal check and the maintenance of equipment of fuel tank, shortens the maintenance oil extraction time, improve work efficiency.
Further, as shown in figure 1, the reserve fuel tank also includes：
Thermometer 4, are connected on casing on the spot, for detecting the oil temperature in the casing；
Electric heater 3, is arranged in the casing, for heating to the oil in the casing；
Electric heater temperature switch 7, is arranged on the electric heater 3, for detecting the wall temperature of the electric heater 3,
And when wall temperature is more than a limit value electric heater 3 described in automatic protection；
Tank temperature switch 18, is connected on the casing and connects the electric heater 3, for detect oil temperature low
When a setting value, control the electric heater 3 to open, when detecting oil temperature a limit value being reached, control the electrical heating
Device 3 cuts out；And,
Liquidometer 5, is connected on the casing, for detecting the oil level in the casing.
Further, the reserve fuel tank also includes the fire resisting damper 6 being connected on casing, and multiple valves；
It is right respectively on the casing, and the pipeline of the connection liquidometer 5 that the two ends of the liquidometer 5 are connected by pipeline
A valve should be provided with.Wherein, on the pipeline at connection 5 two ends of liquidometer, No. 8 pipeline valves and No. 11 pipeline valves are correspondingly provided with respectively
Door.
Reserve fuel tank manufacture and design and test requirements document all according to making standard execute, be furnished with sampling valve, blowoff valve, liquid level
The critical piece such as meter, breather valve, thermometer and electric heater, the material of reserve fuel tank is consistent with control fuel tank, reserve fuel tank
Volume is arranged, and has both met the needs of repairing, it is also considered that reserved enough spaces, so as in interim storage control fuel tank during maintenance
Oil mass.
In addition, being furnished with electric heater 3 in reserve fuel tank 1, by control assembly 8, the oil temperature in reserve fuel tank 1 can be carried out
Chain control, when oil temperature is less than setting value, control assembly 8 controls electric heater 3 to start by tank temperature switch 18, oil temperature
After meeting demand, control assembly 8 controls electric heater 3 to automatically exit from by tank temperature switch 18.Meanwhile, electric heater 3 is certainly
Band wall temperature defencive function, can automatically exit from when 3 wall temperature of electric heater exceedes limit value.
Further, as shown in figure 1, the back-up system also includes：It is separately positioned on 12 two ends of the filtration channel
For for the repairing mouth 9 of the system repairing and sewage draining exit 10 for discharging greasy dirt in the system.
Wherein, the repairing mouth 9 of system connects the container of flexible pipe to outsourcing oil-control, and starting oil filter 2 can be by control oil injection
Reserve fuel tank 1, is used when needed.
Further, the reserve fuel tank also includes wallboard, top board, base plate and support beam, and the thickness of the wallboard is pressed
Formula is calculated：
Wherein, δwFor the thickness of the wallboard, unit is length that mm, A are the base plate or the spacing of the support beam,
It is predetermined coefficient that unit is mm, α, and it is MPa that Pc is pressure, unit, [σ]tFor the allowable stress of sheet material under design temperature, unit is
MPa.
Further, each passage is all connected by pipeline, and the connection of all of pipeline is and is permanently fixed formula connection；
The internal diameter of the pipeline is calculated as follows：
Wherein, Di is internal diameter of the pipeline, and it is mass of medium flow that unit is mm, G, and it is Media density that unit is t/h, ρ, unit
For t/m3, it is m/s that v is velocity of medium, unit.
It should be noted that the material of each pipeline is consistent with the pipe material in Control ＆ Protective, in repairing pipeline
Flow velocity is chosen by 1.5m/s-2m/s.In addition, each passage is hose connection by flanged (FLGD) pressure-bearing with fuel tank, all of pipe
Road connection is and is permanently fixed formula connection.The back-up system of connection is permanently fixed compared to conventional interim oil drum, effectively reduces
The health risk brought by oil product is contacted in staff regular job.
The embodiment of the present invention passes through to increase reserve fuel tank, oil filter and supporting multiple pipes on the basis of Control ＆ Protective
Road valve, meets the needs of live repairing, oil storage and oil purification regeneration, simplifies operation sequence, improve work efficiency, reduce
Fire risk, reduce human contact's oil product in operation with health hazard risk.
Embodiment two
Embodiments provide using the back-up system in above-described embodiment to controlling the oily place of the control in fuel tank
Reason method, referring to Fig. 3, including：
S1, the running status of detection control fuel tank；
S2, the running status according to the control fuel tank, carry out online repairing to the control fuel tank, or to the control
Control oil in liquefaction case carries out in-line purification process.
Wherein, when the liquid level that detects control fuel tank is low, No. 67 pipeline valves in above-mentioned back-up system are opened, 57
Number pipeline valve is remained turned-off, keep No. 27, No. 37, No. 47 pipeline valves be in open mode, close No. 17 pipeline valves, open
Dynamic oil filter, oil is injected control fuel tank from reserve fuel tank, realizes the online repairing to controlling fuel tank.When machine group leader is detected
Between run after the own regenerating unit of Control ＆ Protective cannot fully meet process requirement when, by above-mentioned back-up system
Oil filter carries out purified treatment to oil product, No. 57, No. 67 pipeline valves of manual unlocking, is kept for No. 37, No. 47 pipeline valves are in
Open mode, No. 17, No. 27 pipeline valves be closed, start oil filter, to control fuel tank in oil carry out at purification
Control fuel tank is directly flow back to after reason, with the moisture, impurity and the acidic materials that go in oil removing, keeps the neutral pH of oil product.
In addition, above-mentioned back-up system is when oil-filled first, flexible pipe can be connected to outsourcing control oil by the repairing mouth of system
Container, start oil filter will control oil injection reserve fuel tank, use when needed.Control for long-time storage is oily, such as
Purified treatment need to be carried out to oil product, No. 17, No. 27, No. 37 and No. 47 pipeline valves can be kept in open mode, No. 57, No. 67
Pipeline valve is closed, and opens oil filter, carries out self-loopa inside oil filter and reserve fuel tank, until oil quality is full
Sufficient service requirement.Such as control fuel tank internal need to be checked during unit maintenance, or the equipment on oil tank body is carried out
During maintenance, need to empty fuel tank, can open No. 57 pipeline valves, keep No. 37, No. 47, No. 17 pipeline valves are in opening shape
State, No. 27, No. 67 pipeline valves be closed, start oil filter, can will control fuel tank in oil import reserve fuel tank.Inspection
Repair after finishing, No. 57, No. 17 pipeline valves are closed, No. 27, No. 67 pipeline valves are opened, at holding 37, No. 47 pipeline valves
In opening, starting oil filter can refill control fuel tank by oil.
The embodiment of the present invention according to detect control fuel tank running status, to control fuel tank in control oil carry out and
When process, effectively improve the safety of unit operation, and extend the service life of control oil.
In sum, the present invention proposes a kind of oily back-up system of nuclear power station conventional island control and to controlling oil handling side
Method, which has preferable practical function, by increasing back-up system, solves many engineering problem：Do not have in the industry at present
Back-up system meets the function of online repairing, oil storage and oil purification regeneration；The back-up system of the present invention in unit running process,
To controlling fuel tank that online repairing is carried out, it is that Check System fault and leakage point have striven for the time, improves the safety of unit operation
Property；To controlling oil to carry out purifying regeneration process, it is ensured that oil meets parameter request, the service life of control oil is extended；In machine
During group maintenance, the interim oil extraction for receiving from control fuel tank, it is easy to control internal check and the maintenance of equipment of fuel tank, shortens
The maintenance oil extraction time, improve work efficiency；Back-up system is used as being permanently fixed the device of connection compared to conventional interim oil
Bucket, effectively reduces in staff's regular job, the health risk brought by contact oil product.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement that is made etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of nuclear power station conventional island controls oily back-up system, it is characterised in that include：
Reserve fuel tank, connection control fuel tank, for carrying out online repairing to the control fuel tank,
Filtration channel, the input of the filtration channel connects the outfan of the control fuel tank and the reserve fuel tank respectively,
The outfan of the filtration channel connects the input of the control fuel tank and the reserve fuel tank respectively, for the control
The oil extraction of fuel tank or the reserve fuel tank is filtered；And,
Multiple pipeline valves, the input being connected respectively in the control fuel tank, the reserve fuel tank and the filtration channel
End and outfan, for the running status according to control fuel tank, correspondence opens or closes the control fuel tank and/or standby respectively
The input of fuel tank or outfan, realize carrying out online repairing or to controlling oil to carry out at in-line purification to the control fuel tank
Reason.
2. nuclear power station conventional island as claimed in claim 1 controls oily back-up system, it is characterised in that the back-up system is also wrapped
Include：For connecting the control assembly of each pipeline valve；It is connected with the filtration channel for the control fuel tank
Or the oil filter filtered by the control oil of the reserve fuel tank output, the two ends of the oil filter are correspondingly provided with least one respectively
The pipeline valve, the control assembly is used for controlling the pipeline valve on the filtration channel all the time in open mode.
3. nuclear power station conventional island as claimed in claim 2 controls oily back-up system, it is characterised in that the back-up system is also wrapped
Include：The first output channel for being connected to the control fuel tank outfan and the second output for being connected to the reserve fuel tank outfan
Passage, and be connected to the first input channel of the control fuel tank input and be connected to the of the reserve fuel tank input
Two input channels, the input of the filtration channel connects first output channel and second output channel, institute respectively
The outfan for stating filtration channel connects first input channel and second input channel respectively, and each input or output are logical
One described in pipeline valve is all correspondingly arranged on road,
The control assembly is additionally operable to the working condition according to the control fuel tank, controls each input or the pipe in output channel
The opening and closing of road valve, when the liquid level of the control fuel tank is low, controls first input channel and second output respectively
Passage is opened, and first output channel and second input channel are closed, and the control fuel tank is mended online
Oil；
During the quality decline of the control oil in the control fuel tank, control first input channel and described first defeated respectively
Go out passage to open, and second input channel and second output channel are closed, to controlling oil to carry out at in-line purification
Reason.
4. nuclear power station conventional island as claimed in claim 3 controls oily back-up system, it is characterised in that the control assembly is also used
In the closing for controlling first output channel and first input channel, and second input channel and described second
Output channel is opened, and starts the oil filter, and the control oil to injection in the reserve fuel tank or the control oil of storage are carried out
Self-circulation purifying is processed.
5. nuclear power station conventional island as claimed in claim 3 controls oily back-up system, it is characterised in that the control assembly is also used
During unit maintenance, control first input channel and second output channel are closed, and second input
Passage and the first output channel are opened, and start the oil filter, the control oil in the control fuel tank are imported described standby
Fuel tank；
After unit maintenance is finished, first output channel and second input channel is controlled to close, and described first
Input channel and second output channel are opened, and start the oil filter, and the control oil in the reserve fuel tank is flow back to
The control fuel tank.
6. nuclear power station conventional island as claimed in claim 1 controls oily back-up system, it is characterised in that the reserve fuel tank is also wrapped
Include：
Thermometer, is connected on casing on the spot, for detecting the oil temperature in the casing；
Electric heater, is arranged in the casing, for heating to the oil in the casing；
Electric heater temperature switch, is arranged on the electric heater, for detecting the wall temperature of the electric heater, and in wall temperature
More than electric heater described in automatic protection during a limit value；
Tank temperature is switched, and is connected on the casing and connects the electric heater, for setting less than one detecting oil temperature
During definite value, control the electric heater to open, when detecting oil temperature a limit value being reached, control the electric heater to close；
And,
Liquidometer, is connected on the casing, for detecting the oil level in the casing.
7. nuclear power station conventional island as claimed in claim 6 controls oily back-up system, it is characterised in that the reserve fuel tank is also wrapped
Include the fire resisting damper being connected on casing, and multiple valves；
The two ends of the liquidometer connect the casing by pipeline, and connect and be correspondingly provided with the pipeline of the liquidometer respectively
One valve.
8. nuclear power station conventional island as claimed in claim 1 controls oily back-up system, it is characterised in that the back-up system is also wrapped
Include：Be separately positioned on the filtration channel two ends for the repairing mouth for the system repairing and for discharging in the system
The sewage draining exit of greasy dirt.
9. the nuclear power station conventional island as described in any one of claim 1 to 8 controls oily back-up system, it is characterised in that described standby
Also include wallboard, top board, base plate and support beam with fuel tank, the thickness of the wallboard is calculated as follows：
Wherein, δwFor the thickness of the wallboard, A is the spacing of the length of the base plate or the support beam, and α is predetermined coefficient, Pc
For pressure, [σ]tAllowable stress for sheet material under design temperature.
10. the nuclear power station conventional island as described in any one of claim 3 to 5 controls oily back-up system, it is characterised in that Mei Yitong
Road is all connected by pipeline, and the connection of all of pipeline is and is permanently fixed formula connection；
The internal diameter of the pipeline is calculated as follows：
Wherein, Di is internal diameter of the pipeline, and it is Media density that G is mass of medium flow, ρ, and v is velocity of medium.
Back-up system described in a kind of 11. utilization claim 1 is to controlling oil treatment process, it is characterised in that include：
The running status of detection control fuel tank；
According to the running status of the control fuel tank, online repairing is carried out to the control fuel tank, or to the control fuel tank
Interior control oil carries out in-line purification process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610842466.5A CN106437877B (en) | 2016-09-22 | 2016-09-22 | Nuclear power station conventional island controls oily back-up system and to control oil treatment process |
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| CN106437877B (en) | 2019-07-19 |
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