CN108824382A - Method and device for overhauling tail water cooler - Google Patents
Method and device for overhauling tail water cooler Download PDFInfo
- Publication number
- CN108824382A CN108824382A CN201810587128.0A CN201810587128A CN108824382A CN 108824382 A CN108824382 A CN 108824382A CN 201810587128 A CN201810587128 A CN 201810587128A CN 108824382 A CN108824382 A CN 108824382A
- Authority
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- China
- Prior art keywords
- tail water
- water cooler
- waterwall
- tail
- water
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/54—Sealings for gates
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
Abstract
The invention discloses a method and a device for overhauling a tail water cooler. The tail water cooler is positioned on the top surface of the upper platform, and the method is that a water blocking wall is built on the edge of the top surface of the upper platform, and the top of the water blocking wall is slightly higher than the normal tail water level or the elevation of the power generation water level of one unit; a steel pipe communicated with the slotted hole of the gate is arranged in the water retaining wall, valves are arranged on the steel pipe, when the tail water cooler needs to be overhauled, all the valves are closed firstly, and a water body on one side of the water retaining wall close to the tail water cooler is removed through a temporary water pump; then, the tail water cooler is overhauled; after the overhaul is finished and the overhaul personnel leave the upper platform, filling water to one side of the tail water cooler of the water retaining wall for horizontal pressure by the temporary water pump, and opening all valves to communicate water areas on two sides of the water retaining wall to realize cooling of the tail water cooler; in the maintenance process of the method, the tail water cooler does not need to be lifted away from the upper platform, underwater operation is also not needed, the maintenance is very convenient, the maintenance efficiency can be improved, and the personal safety of maintenance personnel can be ensured.
Description
Technical field
The present invention relates to the repair methods and device of a kind of tail water cooler, belong to hydraulic and hydroelectric engineering metal structure technology
Field.
Background technique
Hydroelectric project big for sediment content, more than impurity, tail water cooler generally use circulating cooling way of supplying water, tail
Water cooler is arranged on the breastwork upper brace of tailrace outlet bulkhead gate unit side, and consideration does not influence cooling effect, tail water
Cooler is wholy set in normal tailwater level lower part, and the prior art is installed and removed tail water cooler using diver；Specific side
Method is as follows：When maintenance, at the installation support of diver's dive to cooler, tail water cooler is hung out after removing connection bolt
Maintenance, maintenance finishes, tail water cooler is put into, then diver's dive is sent to be connected and fixed at the installation support of cooler, this
Ask diver cumbersome every time when in the presence of maintenance, then more inconvenient for remote place, tail water cooler aligns peace under water
Dress and remove poor accuracy, underwater operation difficulty is larger and risk is higher, so, the prior art there is also deficiency, up for
It is further perfect.
Summary of the invention
The purpose of the present invention is to provide the repair methods and device of a kind of tail water cooler, overhaul in tail water cooler
When, it is not necessary that tail water cooler is hung out platform, without diver's underwater operation, repair and maintenance is very convenient, and maintenance can be improved
Efficiency, it is ensured that the personal safety of service personnel, thus overcome the deficiencies in the prior art.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of repair method of tail water cooler of the invention, the tail water cooler are located at upper brace top surface, and this method is
One is built in upper brace top edge and stops up waterwall, and water blocking coping is slightly above normal tailwater level or a unit generation water level
Absolute altitude；Gate slot and tail water cooler are separated by waterwall；Waterwall is equipped with one group of behaviour by tail water cooler side
Make room, the steel pipe of connection gate slot is equipped in each operating room, valve, the corresponding operation ceiling of valve are installed on steel pipe
Portion is equipped with vertical core, is equipped with operating stick in vertical core, and operating stick lower end is connect with valve, and operating stick upper end is pierced by the top of waterwall,
Operating stick upper end is equipped with operation handle；When tail water cooler needs to overhaul, first passes through operating stick and close all valves, then
Water body by interim water pump by waterwall by tail water cooler side excludes；Then service personnel is by temporary ladder down toward peace
The upper brace of dress tail water cooler overhauls tail water cooler；Maintenance finishes after Awaiting Overhaul personnel withdraw upper brace,
Again by tail water cooler side water-filling concora crush of the interim water pump to waterwall, then all valves are opened by operating stick,
The connection of waterwall two sides waters is set to realize the cooling to tail water cooler；The maintenance process of this method is without hanging tail water cooler
From upper brace, without underwater operation is carried out, repair and maintenance is very convenient, and overhaul efficiency can be improved and ensure service personnel's
Personal safety.
In the repair method of aforementioned tail water cooler, one group of operating room from top to bottom presses isosceles triangle setting, with
It is big to adapt to lower part waterwall load, the small feature of top waterwall load.
In the repair method of aforementioned tail water cooler, the steel pipe tail water side outlet uses arc transition, with Optimum Hydraulic
Condition reduces water flow and flows the cavitation erosion to waterwall back and forth in steel pipe.
According to a kind of tail water cooler apparatus for examination and repair of the invention that the repair method of above-mentioned tail water cooler is constituted, including
The waterwall in unit pleurobranch wall top portion is leaned on positioned at gate slot；Waterwall is located at upper brace top surface close to the side of gate slot
Edge；Waterwall is equipped with the operating room of component layers setting by tail water cooler side, is equipped with connection gate in each operating room
The steel pipe of slot is equipped with valve on steel pipe, and vertical core is equipped at the top of the corresponding operating room of valve, operating stick, behaviour are equipped in vertical core
Make bar lower end to connect with valve, operating stick upper end is pierced by the top of waterwall, and operating stick upper end is equipped with operation handle.
In aforementioned tail water cooler apparatus for examination and repair, the water blocking coping is slightly above normal tailwater level or a unit hair
The absolute altitude of electric water level.
In aforementioned tail water cooler apparatus for examination and repair, the operating room of the component layers setting from top to bottom presses isosceles triangle
Arrangement.
In aforementioned tail water cooler apparatus for examination and repair, the steel pipe tail water side outlet is the bell mouth shape of arc transition.
By adopting the above-described technical solution, compared with prior art, the present invention the present invention has the advantages that：
（1）The maintenance of tail water cooler is using the water blocking wall method that valve is arranged on the breastwork upper brace of unit side, in tail water
When cooler overhauls, the water body of water blocking breastwork unit side is excluded using interim water pump after valve by closing, service personnel is logical
Crossing temporary ladder inspection platform at tail water cooler can be realized maintenance, and maintenance finishes, by interim water pump to water blocking chest
Open valve makes waterwall unit side and tail water side waters be connected to the cooling for realizing tail water cooler after the water-filling concora crush of wall telephone group side
Operation without asking diver's underwater operation, and is overhauled it is not necessary that tail water cooler is hung upper brace, and repair and maintenance is very square
Just, overhaul efficiency and the personal safety of service personnel are substantially increased.
（2）In waterwall unit side, isosceles triangle is arranged valve from top to bottom, and the distance between valve is up-small and down-big, under
Portion's waterwall load is big, valve distance farther out, operating room reduce waterwall section at moment of flexure it is smaller, water blocking wall thickness increase compared with
It is few, it reduces investment outlay.
（3）Vertical core is arranged in waterwall, and vertical core is used to place the operating stick of valve, and the handle of operating stick is located at the top of waterwall
More than, convenient for operation valve.
（4）Operating room is set on waterwall at valve, is easily installed valve.
（5）Slightly super normal tailwater level or a unit generation water level at the top of water blocking breastwork, downstream tail when effectivelying prevent overhauling
Ripples are dynamic to pour in tail water cooler side, it is ensured that the safety of maintenance.
（6）Steel pipe tail water side outlet arc transition, HYDRODYNAMIC CONDITION RELATING TO is good, reduces water flow and is flowed back and forth from steel pipe to waterwall
Cavitation erosion.
Detailed description of the invention
Fig. 1 is method schematic diagram of the invention；
Fig. 2 is the partial enlarged view in Fig. 1 at steel pipe；
Fig. 3 is the A-A cross-sectional view of Fig. 1；
Fig. 4 is the B-B cross-sectional view of Fig. 1.
Description of symbols：1- upper brace, 2- waterwall, 3- isosceles triangle, 4- valve, 5- steel pipe, 6- operating room,
7- tail water cooler, 8- vertical core, 9- operating stick, 10- handle, 11- arc transition, 12- gate slot, 13- breastwork.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
The repair method of a kind of tail water cooler of the invention, as shown in Figure 1, the tail water cooler 7 is located at upper flat
1 top surface of platform, this method are to build one in 1 top edge of upper brace to stop up waterwall 2, and the top of waterwall 2 is slightly above normal tail water
The absolute altitude of position；Gate slot 12 and tail water cooler 7 are separated by waterwall 2；Waterwall 2 is set by 7 side of tail water cooler
There is one group of operating room 6.As depicted in figs. 1 and 2, the steel pipe 5 of connection gate slot 12 is equipped in each operating room 6, on steel pipe 5
Valve 4 is installed, vertical core 8 is equipped at the top of the corresponding operating room 6 of valve 4, is equipped with operating stick 9 in vertical core 8,9 lower end of operating stick with
Valve 4 connects, and 9 upper end of operating stick is pierced by the top of waterwall 2, and 9 upper end of operating stick is equipped with operation handle 10.When tail water is cooling
It when device 7 needs to overhaul, first passes through operating stick 9 and closes all valves 4, then is by interim water pump that waterwall 2 is cooling by tail water
The water body of 7 side of device excludes；Then service personnel by temporary ladder down toward installation tail water cooler 7 upper brace 1 to tail
Water cooler 7 is overhauled；Maintenance finishes after Awaiting Overhaul personnel withdraw upper brace 1, then by interim water pump to waterwall 2
Then 7 side water-filling concora crush of tail water cooler is opened all valves 4 by operating stick 9,2 two sides waters of waterwall is connected to
Realize the cooling to tail water cooler 7；The maintenance process of this method is not necessarily to tail water cooler 7 hanging upper brace 1, without
Underwater operation is carried out, repair and maintenance is very convenient, and overhaul efficiency can be improved and ensure the personal safety of service personnel.Such as Fig. 4 institute
Show, one group of operating room 6 is from top to bottom arranged by isosceles triangle 3, top waterwall load big to adapt to lower part waterwall load
Small feature.As shown in Fig. 2, 5 tail water side outlet of steel pipe uses arc transition 11, with Optimum Hydraulic condition, reduces water flow and exist
The cavitation erosion to waterwall 2 is flowed in steel pipe 5 back and forth.
According to a kind of tail water cooler apparatus for examination and repair of the invention that the repair method of above-mentioned tail water cooler is constituted, such as scheme
Shown in 1 and Fig. 2, including being located at gate slot 12 by the waterwall 2 at 13 top of unit pleurobranch wall；Waterwall 2 is located at upper brace 1
Top surface is close to the edge of gate slot 12；Waterwall 2 is equipped with the operating room 6 of component layers setting by 7 side of tail water cooler, often
It is equipped with the steel pipe 5 of connection gate slot 12 in a operating room 6, valve 4, the corresponding operating room 6 of valve 4 are installed on steel pipe 5
Top is equipped with vertical core 8, and operating stick 9 is equipped in vertical core 8, and 9 lower end of operating stick is connect with valve 4, and 9 upper end of operating stick is from waterwall 2
Top is pierced by, and 9 upper end of operating stick is equipped with operation handle 10.The top of waterwall 2 is slightly above the absolute altitude of normal tailwater level.One group
The operating room 6 for being layered setting is from top to bottom arranged by isosceles triangle 3.5 tail water side outlet of steel pipe is the loudspeaker of arc transition 11
Mouth shape.
Embodiment
As shown in figures 1-4, gear is arranged in the repair method of this example tail water cooler on the upper brace 1 of unit pleurobranch wall
The valve 4 of the arrangement of isosceles triangle 3 is arranged in 2 unit side of waterwall in waterwall 2 from top to bottom, and valve 4 passes through steel pipe 5 and tail water
Side connection, steel pipe 5 are fixed on waterwall 2, and valve 4 is located in operating room 6.Tail water cooler 7 is located at the breastwork 13 of unit side
On the upper brace 1 of top surface；The 2 slightly super normal tailwater level in top of waterwall, waterwall 2 is interior to be equipped with vertical core 8；Vertical core 8 is for placing
The operating stick 9 of connecting valve 4；The handle 10 of operating stick 9 is located at 2 top of waterwall or more；As shown in Fig. 2, 5 tail water side of steel pipe goes out
Mouth is arc transition 11.
Claims (7)
1. a kind of repair method of tail water cooler, it is characterised in that：The tail water cooler is located at upper brace top surface, the party
Method is to build one in upper brace top edge to stop up waterwall, and water blocking coping is slightly above normal tailwater level or a unit generation
The absolute altitude of water level；Gate slot and tail water cooler are separated by waterwall；Waterwall is equipped with one by tail water cooler side
Operating room is organized, the steel pipe of connection gate slot is equipped in each operating room, valve, the corresponding operation of valve are installed on steel pipe
Ceiling portion is equipped with vertical core, is equipped with operating stick in vertical core, and operating stick lower end is connect with valve, and operating stick upper end is worn at the top of waterwall
Out, operating stick upper end is equipped with operation handle；When tail water cooler needs to overhaul, first passes through operating stick and close all valves
It closes, then the water body by interim water pump by waterwall by tail water cooler side excludes；Then service personnel passes through temporary ladder
Upper brace down toward installation tail water cooler overhauls tail water cooler；Maintenance finishes Awaiting Overhaul personnel and withdraws upper flat
After platform, then by tail water cooler side water-filling concora crush of the interim water pump to waterwall, then pass through operating stick for all valves
It opens, the connection of waterwall two sides waters is made to realize the cooling to tail water cooler；The maintenance process of this method is not necessarily to tail water cooling
But device hangs upper brace, and without underwater operation is carried out, repair and maintenance is very convenient, and overhaul efficiency can be improved and ensure to overhaul
The personal safety of personnel.
2. the repair method of tail water cooler according to claim 1, it is characterised in that：One group of operating room is from top to bottom
It is arranged by isosceles triangle, top waterwall load small feature big to adapt to lower part waterwall load.
3. the repair method of tail water cooler according to claim 1, it is characterised in that：The tail water side outlet of the steel pipe is adopted
It is reduced water flow with Optimum Hydraulic condition with arc transition and flows the cavitation erosion to waterwall back and forth in steel pipe.
4. the tail water that a kind of repair method of tail water cooler described in any claim according to claim 1~3 is constituted is cooling
Device apparatus for examination and repair, including it is located at gate slot（12）By unit pleurobranch wall（13）The waterwall at top（2）；It is characterized in that：Gear
Waterwall（2）It is located at upper brace（1）Top surface is close to gate slot（12）Edge；Waterwall（2）By tail water cooler（7）Side
Operating room equipped with component layers setting（6）, each operating room（6）Inside it is equipped with connection gate slot（12）Steel pipe（5）, steel
Pipe（5）On valve is installed（4）, valve（4）Corresponding operating room（6）Top is equipped with vertical core（8）, vertical core（8）It is interior to be equipped with operation
Bar（9）, operating stick（9）Lower end and valve（4）Connection, operating stick（9）Upper end is from waterwall（2）Top is pierced by, operating stick（9）On
End is equipped with operation handle（10）.
5. tail water cooler apparatus for examination and repair according to claim 4, it is characterised in that：The waterwall（2）Top it is slightly higher
In normal tailwater level or the absolute altitude of a unit generation water level.
6. tail water cooler apparatus for examination and repair according to claim 4, it is characterised in that：The operating room of the one component layers setting
（6）From top to bottom press isosceles triangle（3）Arrangement.
7. tail water cooler apparatus for examination and repair according to claim 4, it is characterised in that：The steel pipe（5）Tail water side outlet
For arc transition（11）Bell mouth shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810587128.0A CN108824382B (en) | 2018-06-08 | 2018-06-08 | Overhauling method and device for tail water cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810587128.0A CN108824382B (en) | 2018-06-08 | 2018-06-08 | Overhauling method and device for tail water cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108824382A true CN108824382A (en) | 2018-11-16 |
| CN108824382B CN108824382B (en) | 2024-05-14 |
Family
ID=64144540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810587128.0A Active CN108824382B (en) | 2018-06-08 | 2018-06-08 | Overhauling method and device for tail water cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108824382B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119141A (en) * | 2020-01-17 | 2020-05-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Tail water hole export overhauls gate and fills drainage structures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119141A (en) * | 2020-01-17 | 2020-05-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Tail water hole export overhauls gate and fills drainage structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108824382B (en) | 2024-05-14 |
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