CN208395947U - A kind of draining of unit maintenance and seepage from powerhouse drainage system - Google Patents
A kind of draining of unit maintenance and seepage from powerhouse drainage system Download PDFInfo
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- CN208395947U CN208395947U CN201820710798.2U CN201820710798U CN208395947U CN 208395947 U CN208395947 U CN 208395947U CN 201820710798 U CN201820710798 U CN 201820710798U CN 208395947 U CN208395947 U CN 208395947U
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- deep well
- well pump
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- unit
- seepage
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Abstract
The utility model relates to a kind of draining of unit maintenance and seepage from powerhouse drainage systems, need to be arranged the occasion of water drainage system for maintenance and Leakage water system suitable for power station, hydroenergy storage station, pumping plant etc..Machine set repairing drain system and seepage from powerhouse drainage system are combined into one by the utility model, it avoids the need for that drainage for overhaul sump and seepage drainage sump is respectively set, reduce civil engineering excavation and building side's amount, the quantity for reducing the electromechanical equipments such as deep well pump, control cabinet, pipeline simultaneously, significantly reduces the construction cost in power station.Furthermore, system provided by the utility model can effectively solve drainage for overhaul pump problem idle for a long time, the stand-by pump that the first deep well pump and the second deep well pump are pumped as seepage drainage is used under normal conditions, the first deep well pump and the second deep well pump are pumped as drainage for overhaul when needing to overhaul unit and used, it is difficult to the problem of normally starting after avoiding the case where deep well pump stalls for a long time, increases the utilization rate of deep well pump.
Description
Technical field
The utility model relates to a kind of draining of unit maintenance and seepage from powerhouse drainage systems, and suitable for power station, draw water storage
Energy power station, pumping plant etc. need to be arranged the occasion of water drainage system for maintenance and Leakage water system.
Background technique
Setting machine set repairing drain system and seepage from powerhouse draining are all needed in the factories such as power station, hydroenergy storage station, pumping plant
System.Machine set repairing drain system major function is that turbine-generator units need to empty the water in unit runner when overhaul；Leakage
Drainage system major function is the hydraulic structure country rock infiltration that will be drained into leakage sump, unit top cover, main shaft seal, hair
The units waste water such as motor condensed water drains into outside factory.Water drainage system for maintenance and Leakage water system are provided separately under normal conditions, collection
Well takes up a large area, and workshop excavated volume is big, need to configure two sets of independent drainage equipment, such as pump, control cabinet etc..This scheme
Investment is big, and seepage from powerhouse drainage system deep well pump is chronically at working condition, is prone to wear out and reduces the service life；Unit maintenance draining
The equipment only just use in unit maintenance, the major overhaul period is very long, therefore, time that unit maintenance draining pump comes into operation and
Frequency is all seldom, is easy to cause the water pump service life to reduce and damage because being not frequently used.
Utility model content
The purpose of this utility model is that for the deficiencies in the prior art, provide a kind of unit maintenance draining and
Seepage from powerhouse drainage system.
For this purpose, the above-mentioned purpose of the utility model is achieved through the following technical solutions:
A kind of draining of unit maintenance and seepage from powerhouse drainage system, the unit maintenance draining and seepage from powerhouse drainage system
Including sump, the first deep well pump and the second deep well pump, first deep well pump and the second deep well pump are equipped in the sump
It is separately connected a drainpipe, all drainpipes are connected to main sewer, the bottom of first deep well pump and the second deep well pump
Portion's water inlet is separately connected the first connecting tube and the second connecting tube, the middle part setting valve of first connecting tube and the second connecting tube
Door group, the valve group are used to realize the machine of the first unit by the syntagmatic of the valve in valve group being turned on or off
Runner and/or the second unit runner and/or sump are organized with the connection of the first deep well pump and/or the second deep well pump or is not connected
It is logical；
The unit maintenance draining and seepage from powerhouse drainage system further include third deep well pump, the third deep well pump connection
Drainpipe, the drainpipe connect main sewer；Workshop leak connecting tube, the workshop leak are set on the sump side wall
Connecting tube is connected to workshop.
While by adopting the above technical scheme, the utility model can also be used or be combined using further below
Technical solution:
Preferably, first connecting tube is connected to the first connecting tube and the second connecting tube with the setting of the middle section of the second connecting tube
Connecting branch and be respectively formed tie point A and tie point B, the other end of the connecting branch extends in sump；It is described
First connecting tube is equipped with the first normally open valve close to the side of sump in tie point A, is equipped in tie point A close to the side of unit
First normally close valve；Second connecting tube is equipped with the second normally open valve close to the side of sump in tie point B, leans in tie point B
The side of nearly unit is equipped with the second normally close valve；The connecting branch is in tie point A and extends between one end in sump
Equipped with third normally open valve, first normally open valve, the second normally open valve, third normally open valve, the first normally close valve and the second normally close valve shape
As valve group.
Preferably, first normally open valve, the second normally open valve, third normally open valve and the first normally close valve, the second normally close valve
It is arranged in valve well.
Preferably, the drainpipe sets gradually check-valves and drainpipe normally open valve on the direction towards main sewer.
Preferably, flow instrument is arranged in the upstream of the direction upper check valve towards main sewer in the drainpipe.
Preferably, connecting branch extends to the level height of one end in sump lower than the first deep well pump and the second deep-well
The level height of any one in pump.
The utility model provides a kind of draining of unit maintenance and seepage from powerhouse drainage system, by machine set repairing drain system and
Seepage from powerhouse drainage system is combined into one, and is avoided the need for that drainage for overhaul sump and seepage drainage sump is respectively set, is subtracted
Civil engineering excavation and building side's amount are lacked, while having reduced the quantity of the electromechanical equipments such as deep well pump, control cabinet, pipeline, has been effectively reduced
The construction cost in power station.In addition, system provided by the utility model can effectively solve, drainage for overhaul pump is idle for a long time to be asked
Topic, the stand-by pump that the first deep well pump and the second deep well pump are pumped as seepage drainage is used, need to overhaul unit under normal conditions
When the first deep well pump and the second deep well pump pumped as drainage for overhaul use, after avoiding the case where deep well pump stalls for a long time
It is difficult to the problem of normally starting, increases the utilization rate of deep well pump.The utility model can also be deep by the first deep well pump and second
Stand-by pump of the well pump as third deep well pump, reduce third deep well pump as the long-term continuous operation of seepage drainage main pump when
Between, the accident rate that third deep well pump is pumped as seepage drainage is reduced, the service life of third deep well pump is extended.This is practical new
System provided by type is medium waterpower generator station, including hydroenergy storage station, and pumping plant etc. provides a kind of safe and reliable, structure letter
It is single, the drainage system of flexible operation.
Detailed description of the invention
Fig. 1 is the schematic diagram of a kind of unit maintenance draining provided by the utility model and seepage from powerhouse drainage system；
In figure: 1- sump；The first deep well pump of 201-；The second deep well pump of 202-；203- third deep well pump；3- drainpipe；
301- check-valves；302- drainpipe normally open valve；303- flow instrument；4- main sewer；The first connecting tube of 5-；501- first is normally opened
Valve；The first normally close valve of 502-；The second connecting tube of 6-；The second normally open valve of 601-；The second normally close valve of 602-；The unit of the first unit of 7-
Runner；The unit runner of the second unit of 8-；9- connecting branch；901- third normally open valve；10- valve well；11- workshop leak connection
Pipe.
Specific embodiment
The utility model is described in further detail referring to the drawings and specific embodiments.
A kind of draining of unit maintenance and seepage from powerhouse drainage system, including sump 1 are equipped with the first deep-well in sump 1
Pump 201 and the second deep well pump 202, the first deep well pump 201 and the second deep well pump 202 are separately connected a drainpipe 3, all drainings
Pipe 3 is connected to main sewer 4, and the bottom water inlet of the first deep well pump 201 and the second deep well pump 202 is separately connected the first connection
The other end of pipe 5 and the second connecting tube 6, the first connecting tube 5 and the second connecting tube 6 is respectively connected to the unit runner of the second unit
8 and first unit unit runner 7, the middle section setting of the first connecting tube 5 and the second connecting tube 6 is connected to the first connecting tube 5 and the
The connecting branch 9 of two connecting tubes 6 is simultaneously respectively formed tie point A and tie point B, and the other end of connecting branch 9 extends to sump 1
It is interior；First connecting tube 5 is equipped with the first normally open valve 501 close to the side of sump in tie point A, in tie point A close to unit
Side is equipped with the first normally close valve 502；Second connecting tube 6 is equipped with the second normally open valve 601 close to the side of sump in tie point B,
The second normally close valve 602 is equipped with close to the side of unit in tie point B；Connecting branch 9 is in tie point A and extends in sump
Third normally open valve 901 is equipped between one end.First normally open valve 501, the first normally close valve 502, the second normally open valve 601, second are often
Valve closing 602 and third normally open valve 901 are formed as valve group, for the combination being turned on or off by the valve in valve group
The unit runner of the first unit of relational implementation and/or the second unit runner and/or sump are deep with the first deep well pump and/or second
The connection of well pump or not.
Unit maintenance draining and seepage from powerhouse drainage system further include third deep well pump 203, the connection row of third deep well pump 203
Water pipe 3, drainpipe 3 connect main sewer 4；Workshop leak connecting tube 11, workshop leak connecting tube 11 are set on 1 side wall of sump
It is connected to workshop.The above drainpipe is three, still, in order to simplify attached drawing expression, only with an appended drawing reference 3 come the row of statement
Water pipe.
Drainpipe 3 sets gradually check-valves 301 and drainpipe normally open valve 302 on the direction towards main sewer 4.
Flow instrument 303 is arranged in the upstream of the direction upper check valve towards main sewer 4 in drainpipe 3.
Connecting branch 9 extends to the level height of one end in sump lower than the first deep well pump 201 and the second deep well pump
The level height of any one in 202.By so set, making the water flow in sump more gentle.
First normally open valve 501, the second normally open valve 601, third normally open valve 901 and the first normally close valve 502, the second normally close valve
602 are arranged in valve well 10.
The method of operation of unit maintenance draining provided by the utility model and seepage from powerhouse drainage system is as follows:
(1) when being used as seepage from powerhouse drainage system, the first normally close valve 502 and the second normally close valve 602 are in close state, and are opened
It opens third deep well pump 203 and is used as seepage drainage main pump, using the first deep well pump and the second deep well pump as seepage drainage stand-by pump, shape
Pairs of seepage from powerhouse draining；
(2) when being used as machine set repairing drain system, when the first unit needs to overhaul, need to empty the unit stream of the first unit
Water in road 7 closes third normally open valve 901 and the first normally close valve 502 at this time, opens the second normally close valve 602, and by the first deep-well
Channel between pump 201 and the second deep well pump 202 and sump 1 is closed, and is opened with the channel of unit runner, then can be by first
Deep well pump 201 and the second deep well pump 202 are used as unit maintenance draining pump；The water discharge time that can according to need closes the
One normally open valve or the second normally open valve reduce the work number of units of drainage for overhaul pump；Further, it is also possible to normally closed by closing second
Then valve opens the first normally close valve to switch the unit for needing drainage for overhaul.
Above-mentioned specific embodiment is used to illustrate the utility model, the only preferred embodiment of the utility model, and
It is not to limit the utility model, it is practical new to this in the spirit and scope of protection of the claims of the utility model
Any modification, equivalent substitution, improvement and etc. that type is made, both fall within the protection scope of the utility model.
Claims (6)
1. a kind of unit maintenance draining and seepage from powerhouse drainage system, which is characterized in that the unit maintenance draining and workshop seep
Omitting water system in printing includes sump, is equipped with the first deep well pump and the second deep well pump in the sump, first deep well pump and
Second deep well pump is separately connected a drainpipe, and all drainpipes are connected to main sewer, first deep well pump and second
The bottom water inlet of deep well pump is separately connected the first connecting tube and the second connecting tube, the first connecting tube and the second connecting tube it is another
End is respectively connected to the unit runner of the second unit and the unit runner of the first unit, first connecting tube and the second connecting tube
Middle part valve group is set, the valve group is used to realize by the syntagmatic of the valve in valve group being turned on or off
The company of the unit runner of first unit and/or the second unit runner and/or sump with the first deep well pump and/or the second deep well pump
Lead to or is not connected to；
The unit maintenance draining and seepage from powerhouse drainage system further include third deep well pump, the third deep well pump connection draining
Pipe, the drainpipe connect main sewer；Workshop leak connecting tube, the workshop leak connection are set on the sump side wall
Pipe is connected to workshop.
2. unit maintenance draining according to claim 1 and seepage from powerhouse drainage system, which is characterized in that described first connects
It takes over and is connected to the connecting branch of the first connecting tube and the second connecting tube with the setting of the middle section of the second connecting tube and is respectively formed connection
Point A and tie point B, the other end of the connecting branch extend in sump；First connecting tube is in tie point A close to collection
The side of well is equipped with the first normally open valve, is equipped with the first normally close valve close to the side of unit in tie point A；Second connecting tube
It is equipped with the second normally open valve close to the side of sump in tie point B, it is normally closed equipped with second close to the side of unit in tie point B
Valve；The connecting branch is in tie point A and extends to upper normal equipped with third normally open valve, described first between one end in sump
Valve opening, the second normally open valve, third normally open valve, the first normally close valve and the second normally close valve are formed as valve group.
3. unit maintenance draining according to claim 2 and seepage from powerhouse drainage system, which is characterized in that described first often
Valve opening, the second normally open valve, third normally open valve and the first normally close valve, the second normally close valve are arranged in valve well.
4. unit maintenance draining according to claim 1 and seepage from powerhouse drainage system, which is characterized in that the drainpipe
Check-valves and drainpipe normally open valve are set gradually on the direction towards main sewer.
5. unit maintenance draining according to claim 4 and seepage from powerhouse drainage system, which is characterized in that the drainpipe
In the upstream of the direction upper check valve towards main sewer, flow instrument is set.
6. unit maintenance draining according to claim 1 and seepage from powerhouse drainage system, which is characterized in that connecting branch prolongs
The level height of one end in sump is extended to lower than the level height of any one in the first deep well pump and the second deep well pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820710798.2U CN208395947U (en) | 2018-05-14 | 2018-05-14 | A kind of draining of unit maintenance and seepage from powerhouse drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820710798.2U CN208395947U (en) | 2018-05-14 | 2018-05-14 | A kind of draining of unit maintenance and seepage from powerhouse drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208395947U true CN208395947U (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820710798.2U Active CN208395947U (en) | 2018-05-14 | 2018-05-14 | A kind of draining of unit maintenance and seepage from powerhouse drainage system |
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| CN (1) | CN208395947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663623A (en) * | 2020-05-18 | 2020-09-15 | 中国电建集团华东勘测设计研究院有限公司 | Water-flooding-proof drainage system for underground powerhouse of pumped storage power station |
-
2018
- 2018-05-14 CN CN201820710798.2U patent/CN208395947U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663623A (en) * | 2020-05-18 | 2020-09-15 | 中国电建集团华东勘测设计研究院有限公司 | Water-flooding-proof drainage system for underground powerhouse of pumped storage power station |
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