CN206075834U - A kind of underground nuclear power station cavity group drainage system - Google Patents
A kind of underground nuclear power station cavity group drainage system Download PDFInfo
- Publication number
- CN206075834U CN206075834U CN201621004200.5U CN201621004200U CN206075834U CN 206075834 U CN206075834 U CN 206075834U CN 201621004200 U CN201621004200 U CN 201621004200U CN 206075834 U CN206075834 U CN 206075834U
- Authority
- CN
- China
- Prior art keywords
- hydrops
- isolating valve
- water
- cavern
- draining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Measurement Of Radiation (AREA)
Abstract
The utility model discloses a kind of underground nuclear power station cavity group drainage system, the hydrops in underground nuclear power station cavern flowed out to Jing drain buckets are monitored with radiological monitor, when monitoring that hydrops have radioactivity, controller cuts out the first isolating valve, and open the second isolating valve, enter with radioactive hydrops and be related to radioactive draining branch road, and siphonic water-collecting well is entered after disposing via radioactive substance office treatment；When being not detected by hydrops and having radioactivity, controller cuts out the second isolating valve, and opens the first isolating valve, does not enter siphonic water-collecting well with radioactive hydrops；Hydrops Jing siphonic water-collecting wells are discharged into outside massif in river.Passive drainage system is built using siphon pipeline and siphonic water-collecting well, the negative pressure formed in siphoning installation makes the water in pipeline carry out pressure flow to move, accelerate flowing velocity, drainage effect is good, either under unexpected hydrops or major accident operating mode, hydrops in an organized way, efficiently can be discharged underground chamber by drainage system.
Description
Technical field
This utility model belongs to underground technical field of nuclear power, and in particular to a kind of underground nuclear power station cavity group drainage system.
Background technology
Underground nuclear power station arranges multiple caverns in underground or massif and accommodates reactor building and other auxiliary plants, utilizes
Last one physical barrier of the natural rock mass as depth defense principle, ensures reactor safety.
Underground chamber is communicated with external environment by inlet and outlet piping, vent and discharge duct, and the presence of these passages can
Can cause surprisingly to intake in cavern, if water inlet can not be discharged in time, cavern's internal water accumulation will be caused, the possibility that there is water logging,
Affect the normal operation of each system and equipment, when causing major accident engineered safeguards features cannot normal response, threaten nuclear power
Stand safe；When reactor occurs major accident, containment may rupture, or even failure, and carrying radioactive coolant will flow to
Reactor cavern, causes cavern's internal water accumulation, not only threatens cavern, the safety of equipment, and radioactivity hydrops can be to reactor hole
Outdoor rock mass is migrated, and polluted underground water body causes serious environmental pollution.
The water discharge method of current ground Nuclear Power Station Factory Building, mainly for the situation of heavy showers, using hydrocone type rain water on roof
Drainage system excludes rain water on roof, so as to avoid rainwater from entering inside Factory Building, by installations and facilities in Factory Building and extraneous rainwater environment
Isolation.
Subsoil water is in an organized way drained by drainage system by the draining of underground engineering using the method dredged, to weaken water
Pressure to underground structure, reduces osmosiss of the water to structure, so as to aid in underground engineering to reach waterproof purpose.Conventional row
Water method to ooze draining, will the water that oozes out of water layer, flowed in sump by collector pipe, machine carried out using Special water pump then
Tool draining.But the infiltration in rock mass water layer can only be concentrated and be dredged discharge by this mode for oozing row, it is impossible to discharge in time and exist
A large amount of hydrops in cavern.
There is the possibility containing radioactivity, polluted underground water in underground nuclear power station cavern internal water accumulation, thus can not simply according to
Existing underground engineering drainage system and method are removed, the handling problems of special consideration radioactivity hydrops are needed.
The content of the invention：
In order to overcome the defect of above-mentioned background technology, this utility model to provide a kind of underground nuclear power station cavity group draining system
Cavern's internal water accumulation is quickly discharged using siphoning installation, organized free-draining can be also carried out under extreme accident by system.
In order to solve above-mentioned technical problem adopted technical scheme of the present utility model it is：
A kind of underground nuclear power station cavity group drainage system, is provided with several pumping monitoring isolation dresses in underground nuclear power station cavern
Put, pumping monitoring isolating device includes the drain bucket for being arranged on cavern, the output pipe of drain bucket is connected with tie point and
Two branch roads, tie point are provided with the first isolating valve, and the second branch road is provided with the second isolating valve；It is additionally provided with the output pipe of drain bucket
Whether there is radioactive radiological monitor for monitoring draining, radiological monitor is connected to controller, the two of controller
Individual signal output part connects the control end of the first isolating valve and the second isolating valve respectively；Tie point connection is not directed to radioactive
Draining branch road, the connection of the second branch road are related to radioactive draining branch road；It is not directed to entering for radioactive draining branch road and siphonic water-collecting well
Mouth connection, is related to radioactive draining branch road and is connected with the entrance of radioactivity office treatment, the outlet and siphon of radioactivity office treatment
The entrance connection of well；The outlet connection discharge tube of siphonic water-collecting well；
Several pumping monitoring isolating devices be laid in respectively control, diesel engine, maintenance air-conditioning cavern, nuclear reactor cavern,
Offal treatment cavern, steam turbine cavern, Fa Zha caverns, nuclear reactor cavern are provided with least two several pumping monitoring isolation
Device；
Radioactivity office treatment is arranged on underground, is additionally provided with the 5th and isolates on the pipeline between radioactivity office treatment and siphonic water-collecting well
Valve.
It is preferred that the discharge tube of siphonic water-collecting well includes natural discharge tube and the power row for being connected to siphonic water-collecting well outlet
Pipeline is put, natural discharge tube is connected to the position of siphonic water-collecting well outlet and is provided with the 3rd isolating valve, and power discharge tube is connected to rainbow
The position for inhaling well outlet is provided with the 4th isolating valve；Also include water level monitor, water level monitor is connected to controller, controller
Two signal output parts connect the control end of the 3rd isolating valve and the 4th isolating valve respectively.
It is preferred that natural discharge tube is directly connected with river outside massif, natural discharge tube from be connected to the 3rd every
From the port of valve to be connected to outside massif between the port in river have downward gradient.
It is preferred that power discharge tube is connected with river outside massif by draining pump, the entrance connection the 4th of draining pump
Isolating valve, river outside the outlet connection massif of draining pump.
The beneficial effects of the utility model are：Radioactive substance is contained to each cavern by pumping monitoring isolating device
Hydrops carry out individual processing, to ensure draining quality；Different cavern's draining branch circuit parallel connections are arranged and relate to put and put rainbow with non-relating to
Discharging water branch circuit parallel connection is arranged, it is to avoid the migration of radionuclide, reduces the pressure that radioactive substance is processed, and improves draining effect
Rate；
Combined by active power discharge tube and passive natural discharge tube, tackle the outer different water of massif
Position situation, ensures nuclear plant safety operation.When extraneous water level is relatively low, the passive free-draining of total system improves the peace of nuclear power station
Quan Xing；When extraneous water level is higher, siphon drainage branch road is passive to be discharged to siphonic water-collecting well by hydrops, and power set are by water in siphonic water-collecting well
The discharge outlet higher than design flood level is discharged to, prevents river from pouring in down a chimney, ensure the safety of facilities and equipment in cavern.
During major accident, radioactivity office treatment accommodates the high radioactivity hydrops flowed out from cavern, is isolated, at wait
Reason, prevents the diffusion of radionuclide, ensures the safety of the public, staff and environment；
This utility model utilizes siphon pipeline and siphonic water-collecting well to build the negative pressure formed in passive drainage system, siphoning installation
Make the water in pipeline carry out pressure flow to move, accelerate flowing velocity, drainage effect is good, either unexpected hydrops or major accident work
Under condition, hydrops in an organized way, efficiently can be discharged underground chamber by drainage system.
Description of the drawings
Structural representations of the Fig. 1 for this utility model embodiment one；
In figure：1st, drain bucket；2nd, radiological monitor；3rd, the first isolating valve；4th, the second isolating valve；5th, output pipe；6、
It is not directed to radioactive draining branch road；7th, it is related to radioactive draining branch road；8th, radioactivity office treatment；9th, siphonic water-collecting well；10th, siphon
Wall；11st, the 3rd isolating valve；12nd, natural discharge tube；13rd, the 4th isolating valve；14th, power discharge tube；15th, draining pump；16、
5th isolating valve；17th, rhone；18th, river；19th, massif.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is described further.
A kind of underground nuclear power station cavity group drainage system, the underground nuclear power station cavern in massif 19 is arranged on are provided with several
Pumping monitoring isolating device, pumping monitoring isolating device include the drain bucket 1 for being arranged on cavern, and the output pipe 5 of drain bucket 1 connects
Tie point and the second branch road are connected to, tie point is provided with the first isolating valve 3, and the second branch road is provided with the second isolating valve 4；Drain bucket
It is additionally provided with 1 output pipe 5 for monitoring whether draining has radioactive radiological monitor 2, radiological monitor 2 connects
Controller is connected to, two signal output parts of controller connect the control end of the first isolating valve 3 and the second isolating valve 4 respectively；The
The connection of one branch road is not directed to radioactive draining branch road 6, and the connection of the second branch road is related to radioactive draining branch road 7；It is not directed to put
The draining branch road 6 of penetrating property is connected with the entrance of siphonic water-collecting well 9, is related to the entrance of radioactive draining branch road 7 and radioactivity office treatment 8
Connection, the outlet of radioactivity office treatment 8 are connected with the entrance of siphonic water-collecting well 9；The outlet connection discharge tube of siphonic water-collecting well 9, delivery pipe
Road is connected with 19 outside river 18 of massif.
Several pumping monitoring isolating devices be laid in respectively control, diesel engine, maintenance air-conditioning cavern, nuclear reactor cavern,
Offal treatment cavern, steam turbine cavern, Fa Zha caverns, nuclear reactor cavern are provided with least two several pumping monitoring isolation
Device.
In the case where there is major accident, in nuclear reactor cavern, may there be the radioactivity that cannot be discharged in time in a large number
Hydrops, radioactivity hydrops can be migrated to rock mass outside reactor cavern, polluted underground water body, cause environment to be subject to substantial pollution,
Therefore two pumping monitoring isolating devices are provided with nuclear reactor cavern, the drain bucket 1 of two draining detection isolating devices is distinguished
Positioned at reactor both sides, to accelerate the drainage speed under major accident.Each drain bucket 1 individually guides a draining branch road into,
It is separate between each draining, do not interact, so as to reach the effect that each cavern's inner product water segregation gets up, to prevent
Radioactivity hydrops pollute "dead" hydrops, reduce discharge difficulty.
Drain bucket 1 is provided with cover plate, to keep the negative pressure state of 1 throat of drain bucket, makes stream of the current from its edge to center
Dynamic to accelerate, cover plate is provided with anti-whirlpool baffle plate, for preventing drain bucket 1 to be centrally formed whirlpool.
The discharge tube of siphonic water-collecting well 9 includes natural discharge tube 12 and the power discharge for being connected to the outlet of siphonic water-collecting well 9
Pipeline 14, natural discharge tube 12 are connected to the position of the outlet of siphonic water-collecting well 9 and are provided with the 3rd isolating valve 11, and power discharge tube 14 connects
The position for being connected to the outlet of siphonic water-collecting well 9 is provided with the 4th isolating valve 13；Also include water level monitor, water level monitor is connected to control
Device, two signal output parts of controller connect the control end of the 3rd isolating valve 11 and the 4th isolating valve 13 respectively.
Natural discharge tube 12 is directly connected with 19 outside river 18 of massif, natural discharge tube 12 from be connected to the 3rd every
From the port of valve 11 to be connected to outside massif between the port in river have downward gradient.Naturally drain the outlet of pipeline
Absolute altitude is slightly above ordinary water level, and the gradient for naturally draining pipeline is more than 5 ‰, is conducive to for 9 internal water accumulation of siphonic water-collecting well being discharged to river
18.The 3rd isolating valve 11 that pipeline initial position is arranged, state is normally opened, and flood level is higher than natural drainage water level outside the nuclear power station
When, controller triggers the 3rd isolating valve 11 and cuts out, and pipe end leads to 19 outside river of massif, 18 downstream.
Power discharge tube 14 is connected with 19 outside river 18 of massif by draining pump 15, the entrance of draining pump 15 connection the
Water is discharged to 19 outside river 18 of massif by a rhone 17 by four isolating valves 13, the outlet of draining pump 15.4th isolating valve
13 are located at pipeline initial segment, and state is normally closed, when flood level is higher than natural drainage water level outside the nuclear power station, controller triggering the 4th
13 unlatchings of isolating valve, draining pump 15 discharge after certain altitude for 9 internal water accumulation of siphonic water-collecting well are lifted, and power discharge tube 14 is last
End is connected with 19 outside river of massif by one section of rhone 17 diagonally downward；The spout elevation of dynamic drainage pipeline is higher than to set
Meter flood level, prevents river under flood operating mode from pouring in down a chimney and enters nuclear power station.
In the present embodiment, output pipe 5, tie point, the second branch road, it is not directed to radioactive draining branch road 6, is related to put
The draining branch road 7 of penetrating property, radioactivity office treatment 8, siphonic water-collecting well 9 and its between pipeline constitute siphon drainge system.In siphonic water-collecting well 9
There is siphon wall 10.Compared to conventional gravity drainage system, siphon drainge system drainage speed faster, drainage effect it is more preferable；Water
Flat transverse tube is the level of state, and is not required to arrange the gradient, convenient construction；Vertical VERTICAL TUBE caliber is little, quantity is few, is easy to process cloth
Put.
Being not directed to radioactive draining branch road 6 includes first level line segments, the first of each pumping monitoring isolating device
Branch road is all connected to horizontal tube section；Being related to radioactive draining branch road 7 includes the second horizontal tube section, each pumping monitoring every
The second horizontal tube section is all connected to from the second branch road of device.
Radioactivity office treatment 8 is arranged on underground, and other Factory Building caverns are identical with nuclear power station for its structure arrangement, and volume is not less than
The twice of containment liquid leakage amount during major accident, so that ensure can be by high radioactivity hydrops completely isolated in ground under major accident
Under, wait pending.
Pumping monitoring isolating device is connected to and is related to be provided with the second isolation on the second branch road of radioactive draining branch road 7
Valve 4, is related to the radioactive connection radioactivity of draining branch road 7 office treatment 8, and 4 state of the second isolating valve is normally closed, radiological monitor 2
When monitoring radioactive substance, to controller output signal, the second isolating valve 4 is opened by controller, and radioactivity office treatment 8 is located at
Branch road end, is connected with siphonic water-collecting well 9 by pipeline, for carrying out filtering to radioactivity hydrops, desalination or evaporation process and prison
Whether the hydrops radioactivity after survey is processed is up to standard.
The 5th isolating valve 16 is provided with pipeline between radioactivity office treatment 8 and siphonic water-collecting well 9, reactor occurs serious thing
Therefore when, the 5th isolating valve 16 cuts out, and high radioactivity hydrops are stored separately in radioactivity office treatment 8, it is to avoid outside pollution massif
River water.
The present embodiment adopts passive siphon drainge system, drain bucket 1 to be located on each cavern bottom ground, by perpendicular
Straight output pipe 5 is connected with tie point and the second branch road, and radiological monitor 2 is located on output pipe 5, and described not relating to is put
Draining branch road is arranged in parallel with rafting water branch circuit parallel connection is related to, and extends branch road end to underground deeper inside by connecting pipe and leads to respectively
To siphonic water-collecting well 9.
As unexpected water inlet or major accident cause hydrops in underground nuclear power station cavern, when water accumulating volume is little, draining system
Gravity drainage is carried out in system, although gravity drainage it is limited in one's ability, but be enough to tackle water accumulating volume now；When water accumulating volume rapidly increases
Plus, hydrops are full of in drainage system pipe, no air is present, and will form siphonage, and in pipe, vacuum makes to be formed with pipeline
Hydrops in cavern are discharged rapidly by pressure flowing.
So that radioactive draining branch road 6 is not directed in the present embodiment drainage system, near branch road first level line segments
Short tube is diameter 90mm, the pipe of long 1m；
As shown in FIG., control, diesel engine, maintenance air-conditioning cavern are connected in first level line segments from left to right
Draining branch road, the first draining branch road of nuclear reactor cavern, the second draining branch road of nuclear reactor cavern, offal treatment hole
The draining branch road of room, steam turbine cavern draining branch road, Fa Zha caverns draining branch road.
The between control, diesel engine, the draining branch road of maintenance air-conditioning cavern and the first draining branch road of nuclear reactor cavern
A diameter of 110mm in one horizontal tube section, a length of 53m, the transverse tube after the first draining branch road of nuclear reactor cavern are a diameter of
200mm, overall length are 208m；A diameter of 160mm, a length of 20m of the latter linked vertical tube pipeline section of first level line segments；Lead to rainbow
Inhale horizontal transverse-pipe diameter 315mm, the long 1m of well 9.Each draining branch road can be individually formed siphon, quick hydrophobic.Following table is listed
Each branch road forms the hydrops volume that siphon needs：
The width of underground nuclear power station cavern be about 30m or so, length be 45～250m not etc., highly between 10～70m,
When cavern, inner product water depth reaches mm magnitudes, you can form siphon, accelerates the hydrops velocity of discharge, and active drainage is controlling in cavern
Depth of accumulated water, be conducive to ensureing cavern and equipment safety therein.
Drainage speed is relevant with the diameter of pipeline, length and material；Hydrops in siphon drainage branch road are under siphonage
Carry out pressure flow to move, caused energy loss, energy loss to be divided into frictional head loss and local head loss by drag effect.
Frictional head loss is caused due to the length of pipeline, and computing formula is
Wherein：For friction factor of head loss；
G=9.8m/s2For acceleration of gravity；
N=0.011 is steel tube surface roughness；
Hydraulic radiuses of the R=D/4 for pipe；
D is pipe diameter.
According to the pipeline geometric properties of the cavern layout and drainage system of underground nuclear power station, you can calculate each draining branch road
Frictional head loss non dimensional coefficient, respectively：
Local head loss is that flow section shape and direction are undergone mutation and caused fluid energy losses.Due to local
The size of the loss of flood peak is difficult to accurately calculating, simulates the local head loss of pipeline generally using test and empirical coefficient, this
Local head loss is obtained by determining the local loosening ξ of particular component in pipeline in embodiment.Tried according to engineering
Test summary, the local loosening of each part is following (when the wherein local loosening ξ of isolating valve is valve wide open
Value)：
| Component names | 90 ° of elbows | Standard threeway | Isolating valve |
| ξ | 0.55 | 1 | 0.17 |
The frictional head loss of known pipeline and local head loss, can pass throughCalculate
The discharge coefficient μ of tubingc。
Pipe inner product water flow velocityThe gross head of pipeline is difference in height 21m that drain bucket 1 is arrived between siphonic water-collecting well 9,
I.e. drainage system siphon drainage speed is that, between 2.40～5.85m/s, water velocity is fast, and drainage effect is good.Can be by changing pipe
The diameter in road can control the drainage speed of drainage system with length.
The method of work of said system is：
The hydrops radiological monitor 2 in underground nuclear power station cavern flowed out to Jing drain buckets 1 is monitored,
When monitoring that hydrops have radioactivity, controller cuts out the first isolating valve 3, and opens the second isolating valve 4, has
Radioactive hydrops are entered and are related to radioactive draining branch road 7, and enter siphonic water-collecting well after disposing via radioactive substance office treatment
9；
When being not detected by hydrops and having radioactivity, controller cuts out the second isolating valve 4, and opens the first isolating valve 3, no
Put material draining branch road 6 and enter siphonic water-collecting well 9 by not relating to radioactive hydrops；
The externally discharged river 18 of hydrops Jing siphonic water-collecting wells 9.
Hydrops in siphonic water-collecting well 9 river 18 externally discharged in the following manner again：
When the water level that water level monitor detects purpose discharge areas is higher than preset value, controller opens the 4th isolating valve
13, and the 3rd isolating valve 11 is closed, hydrops are emitted in the river 18 of outside by 15 Jing power discharge tube 14 of draining pump；
When the water level that water level monitor detects purpose discharge areas is not higher than preset value, controller is opened the 3rd and is isolated
Valve 11, hydrops Jing nature discharge tubes 12 are emitted into the river 18 of outside.
Control, diesel engine, maintenance air-conditioning cavern, nuclear reactor cavern, offal treatment hole are laid in by several respectively
Room, steam turbine cavern, the pumping monitoring isolating device of Fa Zha caverns discharge hydrops, and nuclear reactor cavern is provided with least two numbers
Individual pumping monitoring isolating device.
In the case where there is major accident, in nuclear reactor cavern, may there be the radioactivity that cannot be discharged in time in a large number
Hydrops, radioactivity hydrops can be migrated to rock mass outside reactor cavern, polluted underground water body, cause environment to be subject to substantial pollution,
Therefore two pumping monitoring isolating devices are provided with nuclear reactor cavern, the drain bucket 1 of two draining detection isolating devices is distinguished
Positioned at reactor both sides, to accelerate the drainage speed under major accident.Each drain bucket 1 individually guides a draining branch road into,
It is separate between each draining branch road, do not interact, so as to reach the effect that each cavern's inner product water segregation gets up, with
Prevent radioactivity hydrops from polluting "dead" hydrops, reduce discharge difficulty.
Be provided with the 5th isolating valve 16, when there is major accident in nuclear reactor, controller close radioactivity office treatment 8 with
High radioactivity hydrops are stored separately in radioactivity office treatment 8 by the 5th isolating valve 16 on the pipeline between siphonic water-collecting well 9, it is to avoid
River water outside pollution massif.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations should all belong to the protection domain of this utility model claims.
Claims (4)
1. a kind of underground nuclear power station cavity group drainage system, it is characterised in that：Several draining prisons are provided with underground nuclear power station cavern
Isolating device is surveyed, the pumping monitoring isolating device includes the drain bucket (1) for being arranged on the cavern, the drain bucket (1)
Output pipe (5) is connected with tie point and the second branch road, and the tie point is provided with the first isolating valve (3), described second
Road is provided with the second isolating valve (4)；It is additionally provided with the output pipe (5) of the drain bucket (1) and puts for monitoring draining and whether having
The radiological monitor (2) of penetrating property, the radiological monitor (2) are connected to controller, and two signals of the controller are defeated
Go out the control end that end connects first isolating valve (3) and second isolating valve (4) respectively；The tie point connection is not related to
And radioactive draining branch road (6), second branch road connection is related to radioactive draining branch road (7)；It is described to be not directed to radiation
Property draining branch road (6) connect with the entrance of siphonic water-collecting well (9), radioactive draining branch road (7) and the radioactivity of being related to is disposed
The entrance connection of room (8), the outlet of the radioactivity office treatment (8) are connected with the entrance of the siphonic water-collecting well (9)；The siphonic water-collecting well
(9) outlet connection discharge tube；
Several pumping monitoring isolating devices are laid in control, diesel engine respectively, keep in repair air-conditioning cavern, nuclear reactor cavern, discard
Thing processes cavern, steam turbine cavern, Fa Zha caverns, and the nuclear reactor cavern is provided with several pumping monitorings described at least two
Isolating device；
The radioactivity office treatment (8) is arranged on underground, the pipe between the radioactivity office treatment (8) and the siphonic water-collecting well (9)
The 5th isolating valve (16) is additionally provided with road.
2. a kind of underground nuclear power station cavity group drainage system according to claim 1, it is characterised in that：The siphonic water-collecting well
(9) discharge tube includes being connected to natural discharge tube (12) and the power discharge tube that the siphonic water-collecting well (9) is exported
(14), the natural discharge tube (12) is connected to the position that the siphonic water-collecting well (9) exports and is provided with the 3rd isolating valve (11), described
Power discharge tube (14) is connected to the position that the siphonic water-collecting well (9) exports and is provided with the 4th isolating valve (13)；Also supervise including water level
Device is surveyed, the water level monitor is connected to the controller, two signal output parts of the controller connect described the respectively
Three isolating valves (11) and the control end of the 4th isolating valve (13).
3. a kind of underground nuclear power station cavity group drainage system according to claim 2, it is characterised in that：It is described to discharge naturally
Pipeline (12) is directly connected with river outside massif, and the natural discharge tube (12) is from being connected to the 3rd isolating valve (11)
Port to be connected to outside massif between the port in river have downward gradient.
4. a kind of underground nuclear power station cavity group drainage system according to claim 2, it is characterised in that：The power discharge
Pipeline (14) is connected with river outside massif by draining pump (15), entrance connection the 4th isolation of the draining pump (15)
Valve (13), river outside the outlet connection massif of the draining pump (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004200.5U CN206075834U (en) | 2016-08-30 | 2016-08-30 | A kind of underground nuclear power station cavity group drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004200.5U CN206075834U (en) | 2016-08-30 | 2016-08-30 | A kind of underground nuclear power station cavity group drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206075834U true CN206075834U (en) | 2017-04-05 |
Family
ID=58435659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621004200.5U Active CN206075834U (en) | 2016-08-30 | 2016-08-30 | A kind of underground nuclear power station cavity group drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206075834U (en) |
-
2016
- 2016-08-30 CN CN201621004200.5U patent/CN206075834U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106531267B (en) | A kind of underground nuclear power station cavity group drainage system and method | |
| CN106836285A (en) | One kind guards waterproof construction based on architecture information underground pipe gallery | |
| CN106759833A (en) | A kind of combined type fairing for improving urban rainwater pumping plant Inlet flow pattern | |
| CN208685753U (en) | A kind of municipal box culvert sewage converging system | |
| CN114718101A (en) | Seepage interception structure of tailing pond of seepage interception wall combined dewatering well and construction method thereof | |
| CN105804047A (en) | Water drainage device and method for increasing water drainage and consolidation speed of filled sludge | |
| CN206075834U (en) | A kind of underground nuclear power station cavity group drainage system | |
| CN206607623U (en) | A kind of excavated basin automatic dredging system | |
| CN210315444U (en) | Water leakage collecting well suitable for underground powerhouse of pumped storage power station | |
| CN209907434U (en) | Utility tunnel with quick drainage improves structure | |
| CN207512707U (en) | A kind of stiling basin for laying novel evacuation system | |
| CN209585447U (en) | A kind of gravity stream storm-water system energy dissipator | |
| CN106088157B (en) | Eclipsed form arranges recirculated water concrete duct manhole shaft and its inspection method | |
| CN217781938U (en) | Emergency accident drainage system for leakage water collecting well of large hydropower station | |
| CN116024944A (en) | Down-the-hole fish gate | |
| CN206428798U (en) | Villa type sewage lifting device | |
| CN115076499A (en) | Box-type hammer-eliminating bidirectional pressure regulating tower | |
| CN215677590U (en) | Underground water pipe well water pumping simulation device for centrifugal model test | |
| CN210658480U (en) | Landfill leachate and groundwater are taken out and are arranged well synthetically | |
| CN208395840U (en) | Basement sump pit preventive drainage device | |
| CN212583398U (en) | Oil discharge system of siphon type transformer oil storage tank | |
| CN211547778U (en) | Centralized drainage system for water burst of subway station deep foundation pit step-by-step excavation | |
| CN114293578A (en) | Basement drainage and water level monitoring system and construction method thereof | |
| CN218626446U (en) | Overflow type surge shaft for ultra-long-distance large-flow gravity flow water delivery system | |
| CN205975686U (en) | Circulating water concrete duct inspection manhole is arranged to eclipsed form |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |