CN106013390A - Nuclear island temporary pit automatic drainage system and drainage method - Google Patents
Nuclear island temporary pit automatic drainage system and drainage method Download PDFInfo
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- CN106013390A CN106013390A CN201610565631.7A CN201610565631A CN106013390A CN 106013390 A CN106013390 A CN 106013390A CN 201610565631 A CN201610565631 A CN 201610565631A CN 106013390 A CN106013390 A CN 106013390A
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- immersible pump
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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Abstract
The invention discloses a nuclear island temporary pit automatic drainage system and drainage method. The system comprises a temporary pit used for accommodating wastewater in a system, a float-type liquidometer used for collecting water-level signals at different heights in the temporary pit, a submersible pump used for pumping out water in the temporary pit, an electronic control unit which is used for receiving the water-level signals at different heights in the temporary pit, performing judgment according to different water levels, sending out start and stop signals of the submersible pump and automatically opening or closing each corresponding submersible pump, and a pipeline assembly which is used for gathering water in the pit and draining out of a safe workshop. The float-type liquidometer and the electronic control unit are arranged on the temporary pit to solve the problem that the submersible pump cannot be started or stopped in time due to not timely response in the prior art, and the nuclear island temporary pit automatic drainage system and drainage method can be used for effectively improving the drainage efficiency and drainage quality, reducing the equipment damage rate, improving the safety coefficient and reducing the use cost.
Description
Technical field
The present invention relates to nuclear power station water system debug field, particularly relate to a kind of automatic for the interim melt pit of nuclear island
Change drainage system and water discharge method.
Background technology
In the process of construction of nuclear island, each system be debugged, and during debugging inevitably
Producing substantial amounts of waste water, the most in time, to be discharged by the waste water during debugging efficiently be that each system is universal
The common problem faced.
Conventional way is that first minimum point at nuclear island factory building arranges some interim melt pits as transfer, will debug
The water produced in journey is first discharged in melt pit nearby, then connects fire hose by lower ground by immersible pump temporarily
Water in hole pumps to outside the Factory Building of higher point.
And above-mentioned drainage system and mode are suitable only for the single system debugging stage, when it come to arrive the connection of multisystem
Adjust, then surge due to dewatering needs, the quantity meeting of the melt pit of required setting, immersible pump and fire hose
Corresponding increase, the setting of drainage path is the most increasingly complex, and will arrange accordingly for each drainage path
Personnel's staff on duty, according to draining process, immersible pump is carried out manual operation, as latent in started in time and stopping
Water pump etc..And due to the restriction of human body energy, draining personnel after the manual operation of long-time high intensity, can be caused
Absent minded, response not in time and operational motion is slow, thus causes draining not carry out at any time,
Stop at any time.If additionally, the immersible pump quantity arranged is inadequate, it is impossible to meet the drainage requirement of each system, then
Immersible pump also needs to often move back and forth between each interim melt pit, easily causes damage, and draining terminates to stop
The instantaneous water of lower immersible pump also can be back to low spot from high point, causes melt pit to return water, affects drainage efficiency, and
And due in interim melt pit foreign body many, easily cause immersible pump blocking.Moreover, due to the setting of each melt pit
The parameter such as position, the degree of depth is inconsistent, causes the cause different in size of required fire hose, also implies that fire water
Band needs to configure adaptor to meet the demand of each melt pit difference drainage path.But at fire hose switching one
Denier connects shakiness and will result in and leak, metal run out, and disturbs draining process, pollutes working environment, and be laid on
Ground fire hose is as easy as rolling off a log causes a series of safe mass event because artificially trampling breakage.
Therefore, during nuclear island system integration and test, it is necessary to provide a kind of drainage efficiency and displacement mass high,
Manpower can be greatly decreased, it is to avoid during termination of pumping water from high point toward low spot reflux, device damage rate is low, put into little and
The most extraordinary drainage system of practicality, novelty, generalization and water discharge method.
Summary of the invention
The present invention is directed to present in prior art during nuclear island joint debugging drainage efficiency and displacement mass is low, manpower
Consume big, safety coefficient is the highest, termination of pumping time the water capacity easily from high point toward low spot backflow and immersible pump, fire water
The problem that the device damage rates such as band are high, it is provided that one can be effectively improved drainage efficiency and displacement mass, reduction
Device damage rate, improve safety coefficient, reduce use cost nuclear island interim melt pit automatization's drainage system and
Water discharge method.
The technical scheme that the present invention proposes with regard to above-mentioned technical problem is as follows:
On the one hand, it is provided that a kind of nuclear island interim melt pit automatization drainage system, described system includes:
Multiple interim melt pits, multiple interim melt pits are separately positioned on different safe Factory Building regions, are used for housing system
The water discharged in system；
Multiple float type level gauges, each float type level gauge is correspondingly arranged in an interim melt pit, is used for adopting
Collect the water level signal of differing heights in interim melt pit；
Multiple immersible pumps, each immersible pump correspondence is arranged in an interim melt pit, for by interim melt pit
Water extract out；
ECU, connects each float type level gauge and each immersible pump, the control panel of ECU respectively
There is automatic mode, for receiving the water level signal of differing heights in interim melt pit, enter according to different water levels
Row judges, and sends immersible pump start stop signal, automatically turns on or close the immersible pump of each correspondence.
Further, described system also includes:
Line component, connects each described immersible pump, for being collected by the water in each described interim melt pit
Heel row is to outside safe Factory Building.
Further, described system also includes that multiple check-valves, each described check-valves are separately positioned on correspondence
Connect on line component and with each corresponding described immersible pump, when being used for avoiding termination of pumping water from high point to low spot
Backflow to corresponding interim melt pit.
Further, described line component includes multiple first by-pass line, multiple second by-pass lines and main pipe line,
Wherein: one end of each first by-pass line connects corresponding immersible pump, the other end connects corresponding check-valves,
For the water in immersible pump is inputted to described second by-pass line；
One end of each second by-pass line connects corresponding check-valves, and the other end connects main pipe line, for by only
Return the water in valve to input to main pipe line；
One end of main pipe line is each second by-pass line meet, is used for collecting each second by-pass line defeated
The water entered, and by the other end of main pipe line, water is delivered to outside Factory Building.
Further, described first by-pass line, the second by-pass line and main pipe line are DN65 blueness PE plastics
Pipe.
Further, described drainage system also includes switching device, is used for connecting described immersible pump and pipeline group
Part.
Further, described switching device is fire hose.
Further, described line component is additionally provided with flange, be used for connecting described first by-pass line,
Two by-pass lines and main pipe line.
Further, the control panel of described ECU also has manual mode, for scene manually
Realize the start and stop of immersible pump.
Further, described ECU includes memory module, it is judged that module and control module,
Described memory module for storage pre-set first pre-conditioned and second pre-conditioned；
According to actually detected water level signal, described judge module is for judging whether it meets described first and preset
Condition or second pre-conditioned, when the water level of each interim melt pit meet described first pre-conditioned time, described
Immersible pump is opened；When the water level of each interim melt pit meet described second pre-conditioned time, described immersible pump stops
Only；
Described control module is for meeting above-mentioned default first condition or pre-when described actually detected water level signal
If during second condition, described immersible pump start stop signal is sent to corresponding described immersible pump.
Further, described interim melt pit is provided with cover plate, described cover plate offers through hole, for float
The float of formula liquidometer passes and natural lowering is in described interim melt pit.
Further, described drainage system is used for EPR, CPR or AP1000.
On the other hand, it is provided that a kind of nuclear island interim melt pit automatization water discharge method, described method includes:
S1, melt pit and immersible pump are arranged: according to each system debug dewatering needs, in the different on-demand settings of Factory Building
Multiple interim melt pits；And correspondence installs immersible pump described in each described interim melt pit；
S2, float type level gauge are arranged: in each described interim melt pit being provided with described immersible pump, correspondence sets
Put a float type level gauge, the water level signal of differing heights in the interim melt pit of Real-time Collection；
S3, water level signal according to the differing heights of actual acquisition, the water level in each interim melt pit of real-time judge
Whether meet start and stop requirement, and send immersible pump start stop signal.
Further, described step S1 also includes: clean out the foreign material in described interim melt pit, and upper
State and on interim melt pit, cover plate is set.
Further, also including in described step S3: be provided with ECU, described ECU has certainly
Dynamic model formula, pre-sets first pre-conditioned or second pre-conditioned by its control panel, when each temporarily
The water level of melt pit meet described first pre-conditioned time, described immersible pump open；Water when each interim melt pit
Position meet described second pre-conditioned time, described immersible pump stop；
Described ECU according to actually detected water level signal judge whether to meet described first pre-conditioned or
Second is pre-conditioned, and described actually detected water level signal meet different pre-conditioned time, by described
Immersible pump start stop signal sends to corresponding described immersible pump.
Further, step S2a is also included between described step S2 and S3: line component is arranged: arrange pipe
Line component, connects each immersible pump, and arranges check-valves on line component；
Further, step S4 is also included: each described immersible pump is according to the start stop signal received, by right
Water in the interim melt pit answered is discharged, and the unified heel row that collects is to outside safe Factory Building.
Further, the control panel of described ECU also includes manual mode, real manually for scene
The start and stop of existing immersible pump.
The technical scheme that the embodiment of the present invention provides has the benefit that
1, by install additional on interim melt pit cover plate prevent foreign body introduce melt pit, can be greatly reduced immersible pump block up
Plug damages risk.
2, check-valves is set on the line component of nuclear island interim melt pit drainage system, water when can avoid termination of pumping
Backflow from high point to low spot so that draining fully, efficiently, can effectively prevent from being connected to drainage pipeline networks simultaneously
On each melt pit between mutually go here and there water.
3, ECU is connected with float type level gauge, immersible pump, by float type level gauge for water level
Measurement send the start stop signal of immersible pump, it is achieved automatization's draining of interim melt pit, it is not necessary to when personnel are long
Between on duty, significantly reduce manpower.
4, line component selects the blue PE plastic tube of DN65 can take into account displacement and pump lift simultaneously,
And color is eye-catching, it is difficult to be trampled damage by people.Additionally, plastic tube is with low cost, it is easy to cutting, can basis
On-the-spot actual demand intercepts different length flexibly, then by itself and the special Flange joint of match of pipe diameter, can be effective
Prevent from leaking, metalling run out.Use PE pipe to replace traditional fire hose as water-drainage tube part simultaneously, effectively eliminate
Metal run out, leak, get an electric shock equivalent risk, safe mass is greatly improved.
5, drainage system and the method for the present invention are unrelated with heap-type, can be at heaps such as EPR, CPR, AP1000
Type so other occasions any from low spot to the local application of high point draining.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, required in embodiment being described below
Accompanying drawing to be used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention's
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of nuclear island interim melt pit automatization drainage system control figure that the embodiment of the present invention one provides；
Fig. 2 is a kind of nuclear island interim melt pit automatization drainage system structural representation that the embodiment of the present invention one provides
Figure；
Fig. 3 is a kind of line component structural representation that the embodiment of the present invention one provides；
Fig. 4 is the control panel schematic diagram of a kind of ECU that the embodiment of the present invention one provides；
Fig. 5 is another drainage system control structure schematic diagram that the embodiment of the present invention one provides；
Fig. 6 is the nuclear island interim melt pit automatization water discharge method flow chart that the embodiment of the present invention two provides；
Fig. 7 is the setting of the nuclear island interim melt pit automatization each parts of water discharge method that the embodiment of the present invention two provides
Flow chart.
Detailed description of the invention
In order to solve during the nuclear island joint debugging in the presence of prior art drainage efficiency and displacement mass is low, people
Power consume big, safety coefficient is the highest, termination of pumping time the water capacity easily from high point toward low spot backflow and immersible pump, fire-fighting
The problem that the device damage rates such as water band are high, it is desirable to provide one can the row of being effectively improved in nuclear island joint debugging
Water efficiency and displacement mass, reduction device damage rate, the safety coefficient that improves, the nuclear island of reduction use cost face
Time melt pit automatization drainage system and water discharge method, its core concept is: corresponding in each interim melt pit
One float type level gauge is installed, and is connected in the start stop apparatus of immersible pump, it is achieved immersible pump automatic
Start and stop, this start stop apparatus includes connecting each float type level gauge and the ECU of each immersible pump, automatically controlled
Unit controls the opening and closing of each immersible pump according to the water level signal of actual acquisition；And the present invention is row
Installing Slow Close Valve on water pipeline can prevent water from backflowing to low spot from high point and mutually going here and there between each melt pit
Water；Replacing fire hose with PE plastic tube, solution is leaked, problem of metalling run out.
For making the object, technical solutions and advantages of the present invention clearer, real to the present invention below in conjunction with accompanying drawing
The mode of executing is described in further detail.
Embodiment one:
As a example by Taishan 1 machine nuclear island safe Factory Building automatization drainage system, seeing Fig. 1, described system includes:
Multiple float type level gauges 100, the multiple immersible pumps 300 corresponding with multiple float type level gauges 100, and often
One float type level gauge 100 and the corresponding ECU 200 connected of each immersible pump 300, wherein:
Each float type level gauge 100 is the water level signal of differing heights in the corresponding interim melt pit of Real-time Collection；
Multiple immersible pumps 300, each immersible pump correspondence is arranged in an interim melt pit, and being used for will provisionally
Water in hole is extracted out；
ECU 200, the water level signal of differing heights in each interim melt pit of real-time reception, according to connecing
Different water level signal in each interim melt pit received judge, and send immersible pump 300 start stop signal,
Automatically turning on or close the immersible pump 300 of each correspondence, it is achieved that water Gao Zeqi, water is low, the automatization stopped
Control.
Fig. 1 of the embodiment of the present invention one shows 1 ... N number of float type level gauge 100,1 ... N number of latent
Water pump 300, the water level signal of all collections all sends to ECU, in reality of the present invention is applied, altogether
There are 10 interim melt pits to be distributed in different Factory Buildings, 10 interim melt pits have been respectively mounted a float-type
Liquidometer 100 and an immersible pump 300, the draining in multiple different Factory Buildings.
Fig. 2 is a kind of nuclear island interim melt pit automatization drainage system structural representation that the embodiment of the present invention one provides
Figure, in conjunction with Fig. 1, the structure of the present invention is described in further detail below: Fig. 2 include interim melt pit 1,
Cover plate 2, check-valves 3, float type level gauge 100, immersible pump 300, ECU 200 and pipeline group
Part.
Multiple interim melt pits 1 are separately positioned on the bottom of 3 safe Factory Buildings, are used for housing nuclear island joint debugging
The water that in journey, each system is discharged；Add cover plate 2 on interim melt pit 1, be used for preventing foreign body from introducing melt pit, can
Immersible pump 300 blocked and damage risk is greatly reduced；Fig. 2 embodiment of the present invention shows have 3
The through hole that the float of individual float type level gauge 100 is each passed through on melt pit cover plate 2 is correspondingly arranged at 3 temporarily
In melt pit 1, and natural lowering is in described interim melt pit 1, and above-mentioned float type level gauge 100 can be examined in real time
Survey the height of water level in interim melt pit 1.
3 immersible pump 300 correspondences are arranged in 3 interim melt pits 1, for by the interim melt pit of each correspondence
Water in 1 is extracted out；The power supply of immersible pump 300 is provided by temporary source case.For meeting the draining need of each system
Asking, the quantity of immersible pump can adjust according to actual interim melt pit quantity.Configuration multiple stage immersible pump can be protected
The independence of card melt pit draining, it is to avoid the dismounting repeatedly of immersible pump, move, install, extends immersible pump with this
Service life, it is also possible to reduce the dismounting repeatedly of power supply, installation, thus ensure the safety of personnel.Certainly
Not by number quantitative limitation in actual application.
ECU 200 connects each float type level gauge 100 and each immersible pump 300, ECU respectively
The control panel of 200 has automatic mode, for receiving the water level signal of differing heights in interim melt pit, according to
Different water levels judges, and sends immersible pump 300 start stop signal, automatically turns on or to close each right
The immersible pump 300 answered, realizes the Automated condtrol of drainage system with this.
Line component connects each immersible pump 300, for the water in each interim melt pit 1 is extracted out, and warp
Cross and collect heel row to outside safe Factory Building.
Also including multiple check-valves 3, each check-valves 3 is separately positioned on the line component of correspondence, is used for
When avoiding termination of pumping, water backflows to corresponding interim melt pit 1 to low spot from high point, can effectively prevent from connecting simultaneously
Water is mutually gone here and there between each interim melt pit 1 on drainage pipeline networks.Wherein interim melt pit 1, float type level gauge
100, the quantity one_to_one corresponding of immersible pump 300 and check-valves 3, each float type level gauge 100 and immersible pump
300 are connected to ECU, it is achieved that the Auto-drainage of drainage system and being uniformly controlled.
Seeing Fig. 3, described line component includes multiple first by-pass line 7, multiple second by-pass line 8 and house stewards
Line 9, wherein: one end of each first by-pass line 7 connects corresponding immersible pump 300, the other end connects correspondence
Check-valves 3, for the water in immersible pump 300 is inputted to described second by-pass line 8；
One end of each second by-pass line 8 connects corresponding check-valves 3, and the other end connects main pipe line 9, is used for
Water in check-valves 3 is inputted to main pipe line 9；
One end of main pipe line 9 is each second by-pass line 8 meet, is used for collecting each second arm
The water of line 8 input, and sewer water being delivered to outside Factory Building by the other end of main pipe line 9.
Above-mentioned first by-pass line the 7, second by-pass line 8 and main pipe line 9 are DN65 blueness PE plastic tube.
Line component selects the blue PE plastic tube of DN65 can take into account displacement and pump lift simultaneously, and color is waken up
Mesh, is difficult to be trampled damage by people.Additionally, plastic tube is with low cost, it is easy to cutting, can be according to on-the-spot actual
Demand intercepts different length, flexible arrangement pipeline.
Additionally, because immersible pump 300 can not be directly connected to above-mentioned PE pipe, therefore said system also includes using
In the switching device connecting immersible pump 300 and line component, it is preferred that described switching device is fire hose.
Meanwhile, PE pipe preferably puts in interim melt pit, so can reduce the length of fire hose as far as possible, though fire-fighting
Water band and PE pipe junction leak on a small quantity, it is also possible to directly drain back in melt pit, are finally drawn out of outside Factory Building not
The situation metalled run out, leak can be caused.Use simultaneously PE pipe replace traditional fire hose as water-drainage tube part,
Can effectively eliminate that fire hose is damaged and explosion and metalling run out, leak and touching of producing at fire hose coupling
Electricity equivalent risk, is greatly improved safe mass.
Be additionally provided with flange (not shown) on line component, be used for connecting above-mentioned first by-pass line 7,
Two by-pass lines 8 and main pipe line 9.This set can avoid the phenomenon leaked at switching, metal run out, and enters one
Step reduces the electric shock risk caused because leaking, and improves safety coefficient.
Meanwhile, seeing Fig. 4, the control panel 6 of ECU 200 also can have manual mode, can be according to need
It is used for the on-the-spot start and stop realizing immersible pump 300 manually.
In the embodiment of the present invention, seeing Fig. 5, described ECU 200 farther includes: memory module 201,
Judge module 202 and control module 203；Wherein: described memory module 201 pre-sets for storage
First is pre-conditioned and second pre-conditioned；
Described judge module 202 is described first pre-for judging whether to meet according to actually detected water level signal
If condition or second pre-conditioned, when the water level of each described interim melt pit 1 meets described first pre-conditioned
Time, described immersible pump 300 is opened；Bar is preset when the water level of each described interim melt pit 1 meets described second
During part, described immersible pump 300 stops；
Described control module 203 is for meeting above-mentioned default first condition when described actually detected water level signal
Or during default second condition, described immersible pump 300 start stop signal is sent to corresponding described immersible pump 300.
Its operation principle is as follows: above-mentioned ECU 200 can collect float-type in each described interim melt pit 1
Real time water level signal detected by liquidometer 100, and by judge module 202, above-mentioned water level signal is entered
Row judges, by it with described memory module 201 in pre-set first pre-conditioned and second pre-conditioned
Contrast, after drawing comparative result, then by described control module 203, immersible pump 300 start and stop are believed
Number it is sent to the described immersible pump 300 of connection corresponding with described ECU 200.Concrete, when each described
The water level of interim melt pit 1 meet described first pre-conditioned time, control module 203 sends immersible pump 300 and opens
Opening signal, described immersible pump 300 is opened；When the water level of each described interim melt pit 1 meets described second pre-
If during condition, control module 203 sends immersible pump 300 and stops signal, and described immersible pump 300 stops.By
The running status of immersible pump 300 can be automatically controlled by this by described ECU 200, it is achieved diving
The automatic start-stop of pump 300, from the most on duty without manpower, decreases manpower consumption, and above-mentioned
ECU 200 reacts timely, can control immersible pump 300 in real time fast and accurately, it is to avoid
Because reaction causes the generation of phenomenons such as metalling run out, leak not in time during manual operation.
Embodiment two:
The embodiment of the present invention additionally provides a kind of nuclear island automatization water discharge method, sees Fig. 6, and the method includes:
S1, melt pit and immersible pump are arranged: according to each system debug dewatering needs, in the different on-demand settings of Factory Building
Multiple interim melt pits；And correspondence installs immersible pump described in each described interim melt pit；
S2, float type level gauge are arranged: in each described interim melt pit being provided with described immersible pump, correspondence sets
Put a float type level gauge, the water level signal of differing heights in the interim melt pit of Real-time Collection；
S3, immersible pump control: according to the water level signal of the differing heights of actual acquisition, real-time judge is each temporarily
Whether the water level in melt pit meets start and stop requirement, and sends immersible pump start stop signal.
Further, described step S1 also includes: clean out the foreign material in described interim melt pit, and upper
State and on interim melt pit, cover plate is set；
Further, also including in described step S3: be provided with ECU, described ECU has certainly
Dynamic model formula, pre-sets first pre-conditioned or second pre-conditioned by its control panel, when each temporarily
The water level of melt pit meet described first pre-conditioned time, described immersible pump open；Water when each interim melt pit
Position meet described second pre-conditioned time, described immersible pump stop；
Described ECU according to actually detected water level signal judge whether to meet described first pre-conditioned or
Second is pre-conditioned, and described actually detected water level signal meet different pre-conditioned time, by described
Immersible pump start stop signal sends to corresponding described immersible pump；
Further, see Fig. 7, also there is between described step S2 and S3 step S2a: line component sets
Put: line component is set, connect each immersible pump, and check-valves is set on line component；
Also include step S4: draining: each described immersible pump is according to the start stop signal received, by corresponding
Water in interim melt pit is discharged, and the unified heel row that collects is to outside safe Factory Building.
Preferably, the control panel of described ECU also includes manual mode, realizes manually for scene
The start and stop of immersible pump.Realize the Automated condtrol of draining, it is not necessary to special messenger guards, reply and save manpower consumption.
Additionally, above-mentioned water discharge method can be used for different reactor types, such as EPR, CPR or AP1000.
It should be noted that the invention described above embodiment sequence number is just to describing, do not represent the excellent of embodiment
Bad.
Technique effect contrasts:
Before enforcement:
On-the-spot manpower demand: 6 people, needs long-time on-the-spot on duty or awaits orders.
Scene is likely to occur at fire hose breakage, fire hose coupling to pop at any time metals run out, and needs scene to make an inspection tour
(2 people)；Need cleaning team personnel on site to clean fire hose if desired and leak (3 people await orders)；Special messenger is needed to monitor
Melt pit liquid level is met an urgent need break-make immersible pump power supply (1 people)；
Safe mass risk: fire hose leaks, metals run out；Immersible pump damages；Electric shock risk.
Job step: need special messenger to place immersible pump at melt pit, lays draining fire hose, arranges special messenger to patrol
Depending on.If metalling run out, special messenger need to be arranged to sweep water.Need after draining to reclaim fire hose and immersible pump.
After enforcement:
On-the-spot manpower demand: 1 people, it is not necessary to long-time on-the-spot on duty.Only need 1 people that the state of immersible pump is set,
Can leave subsequently.
Safe mass risk: immersible pump damages risk and is greatly reduced, without leaking, metal run out, electric shock risk.
Job step: immersible pump is got to automatic mode.
In sum, the invention provides a kind of nuclear island interim melt pit automatization's drainage system and water discharge method,
Compared to existing technologies, it prevents foreign body from introducing melt pit by adding cover plate on interim melt pit,
Immersible pump blocking can be greatly reduced and damage risk；ECU is connected with float type level gauge, immersible pump,
By float type level gauge, the measurement of water level is sent to the start stop signal of immersible pump, it is achieved interim melt pit
Automatization's draining, it is not necessary to personnel are the most on duty, significantly reduces manpower；Line component selects DN65's
Blue PE plastic tube can take into account displacement and pump lift simultaneously, and color is eye-catching, is difficult to be trampled damage by people,
Replaced traditional fire hose can effectively eliminate as water-drainage tube part metal run out, leak, get an electric shock equivalent risk,
Safe mass is greatly improved.Additionally, plastic tube is with low cost, it is easy to cutting, can be according to on-the-spot actual demand
Intercept different length flexibly, then by itself and the special Flange joint of match of pipe diameter, can effectively prevent from leaking, running
Water, and water backflow from high point to low spot when providing check valves to avoid termination of pumping on above-mentioned line component,
Prevent string water, improve drainage efficiency.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can be passed through
Hardware completes, it is also possible to instructing relevant hardware by program and complete, described program can be stored in
In a kind of computer-readable recording medium, storage medium mentioned above can be read only memory, disk or
CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (15)
1. a nuclear island interim melt pit automatization drainage system, it is characterised in that described system includes:
Multiple interim melt pits, multiple described interim melt pits are separately positioned on different safe Factory Building regions, are used for receiving
The water discharged in appearance system；
Multiple float type level gauges, each described float type level gauge is correspondingly arranged in interim melt pit described in,
For gathering the water level signal of differing heights in described interim melt pit；
Multiple immersible pumps, each described immersible pump correspondence is arranged in interim melt pit described in, for facing described
Time melt pit in water extract out；
ECU, connects each described float type level gauge and each described immersible pump, described automatically controlled list respectively
The control panel of unit has automatic mode, for receiving the water level letter of differing heights in each described interim melt pit
Number, judge according to different water levels, and correspondence send described immersible pump start stop signal, automatically turn on or
Close the described immersible pump of each correspondence.
Drainage system the most according to claim 1, it is characterised in that described system also includes:
Line component, connects each described immersible pump, for the water in each described interim melt pit is collected heel row
Outside safe Factory Building.
Drainage system the most according to claim 2, it is characterised in that described system also includes multiple stopping
Return valve, each described check-valves be separately positioned on correspondence described line component on, and with each corresponding institute
Stating immersible pump to connect, during for avoiding termination of pumping, water backflows to corresponding described interim melt pit to low spot from high point.
Drainage system the most according to claim 3, it is characterised in that described line component includes multiple
First by-pass line, multiple second by-pass lines and main pipe line, wherein: one end of each described first by-pass line is even
Connecing the described immersible pump of correspondence, the other end of each described first by-pass line connects corresponding described check-valves,
For the water in described immersible pump is inputted to described second by-pass line；
One end of each described second by-pass line connects corresponding described check-valves, each described second by-pass line
The other end connect described main pipe line, for by the water input in corresponding described check-valves to described main pipe line；
One end of described main pipe line is each described second by-pass line meet, is used for collecting each described second
The water of by-pass line input, and by the other end of described main pipe line, water is delivered to outside Factory Building.
Drainage system the most according to claim 4, it is characterised in that described first by-pass line, second
By-pass line and main pipe line are DN65 blueness PE plastic tube.
Drainage system the most according to claim 2, it is characterised in that described drainage system also includes turning
Connection device, is used for connecting described immersible pump and described line component.
Drainage system the most according to claim 6, it is characterised in that described switching device is fire water
Band.
Drainage system the most according to claim 2, it is characterised in that also set up on described line component
There is flange, be used for connecting described first by-pass line, the second by-pass line and main pipe line.
Drainage system the most according to claim 1, it is characterised in that the chain of command of described ECU
Plate also has manual mode, realizes the start and stop of immersible pump manually for scene.
Drainage system the most according to claim 1, it is characterised in that described ECU includes depositing
Storage module, it is judged that module and control module,
Described memory module for storage pre-set first pre-conditioned and second pre-conditioned；
According to actually detected water level signal, described judge module is for judging whether it meets described first and preset
Condition or second pre-conditioned, when the water level of each described interim melt pit meet described first pre-conditioned time,
Described immersible pump is opened；When the water level of each described interim melt pit meet described second pre-conditioned time, described
Immersible pump stops；
Described control module is for meeting above-mentioned default first condition or pre-when described actually detected water level signal
If during second condition, described immersible pump start stop signal is sent to corresponding described immersible pump.
11. drainage systems according to claim 1, it is characterised in that on each described interim melt pit
Being provided with cover plate, described cover plate offers through hole, the float for described float type level gauge passes and natural
Lowering is in corresponding described interim melt pit.
12. 1 kinds of nuclear island interim melt pit automatization water discharge methods, it is characterised in that comprise the steps:
S1, melt pit and immersible pump are arranged: according to each system debug dewatering needs, in the different on-demand settings of Factory Building
Multiple interim melt pits, and immersible pump described in corresponding installation one in each described interim melt pit；
S2, float type level gauge are arranged: in each described interim melt pit being provided with described immersible pump, correspondence sets
Put a float type level gauge, the water level signal of differing heights in the corresponding described interim melt pit of Real-time Collection；
S3, immersible pump control: according to the water level signal of the differing heights of actual acquisition, and real-time judge is each described
Whether the water level in interim melt pit meets start and stop requirement, and sends corresponding described immersible pump start stop signal.
13. water discharge methods according to claim 12, it is characterised in that also wrap in described step S1
Include: clean out the foreign material in described interim melt pit, and cover plate is set on the described interim melt pit of each correspondence；
Step S2a is also included: line component is arranged: arrange line component between described step S2 and S3,
Connect each described immersible pump, and the check-valves of each correspondence is set on described line component.
14. water discharge methods according to claim 12, it is characterised in that also wrap in described step S3
Including: be provided with ECU, described ECU has automatic mode, is pre-set by its control panel
First is pre-conditioned or second pre-conditioned, presets when the water level of each described interim melt pit meets described first
During condition, described immersible pump is opened；When the water level of each described interim melt pit meets described second pre-conditioned
Time, described immersible pump stops；
Described ECU according to actually detected water level signal judge whether to meet described first pre-conditioned or
Second is pre-conditioned, and described actually detected water level signal meet different pre-conditioned time, by described
Immersible pump start stop signal sends to corresponding described immersible pump.
15. water discharge methods according to claim 12, it is characterised in that also include step S4: each
Water in corresponding described interim melt pit, according to the start stop signal received, is discharged, and is united by described immersible pump
One collects heel row to outside safe Factory Building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565631.7A CN106013390A (en) | 2016-07-18 | 2016-07-18 | Nuclear island temporary pit automatic drainage system and drainage method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565631.7A CN106013390A (en) | 2016-07-18 | 2016-07-18 | Nuclear island temporary pit automatic drainage system and drainage method |
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| CN106013390A true CN106013390A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610565631.7A Pending CN106013390A (en) | 2016-07-18 | 2016-07-18 | Nuclear island temporary pit automatic drainage system and drainage method |
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| CN (1) | CN106013390A (en) |
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| CN108151967A (en) * | 2017-11-16 | 2018-06-12 | 中国核电工程有限公司 | A kind of nuclear power plant nuclear island workshop liquid leakage rate measuring device |
| CN114164847A (en) * | 2021-11-11 | 2022-03-11 | 北京城建集团有限责任公司 | Emergency drainage system and method for underground building |
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