CN111827209A - Float stopping facility and construction method thereof - Google Patents
Float stopping facility and construction method thereof Download PDFInfo
- Publication number
- CN111827209A CN111827209A CN202010730053.4A CN202010730053A CN111827209A CN 111827209 A CN111827209 A CN 111827209A CN 202010730053 A CN202010730053 A CN 202010730053A CN 111827209 A CN111827209 A CN 111827209A
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- Prior art keywords
- float
- guide groove
- stopping
- blocking
- floating
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/06—Barriers therefor construed for applying processing agents or for collecting pollutants, e.g. absorbent
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Revetment (AREA)
Abstract
The invention belongs to the field of water conservancy and hydropower engineering, and particularly discloses a float stopping facility capable of automatically lifting along with the rise and fall of a water level so as to effectively stop floating dirt in a reservoir area, and a construction method for constructing the float stopping facility. The float stopping facility comprises two float stopping guide groove buttresses which are respectively arranged at the left side and the right side of a water inlet of the power station, wherein a float stopping guide groove is arranged on each float stopping guide groove buttress, a tackle capable of moving up and down is slidably arranged in each float stopping guide groove, and an end part float bowl is hinged on each tackle; the end part buoys are two in total, and at least two float blocking buoys are connected in series between the two end part buoys. The pulley hinged with the end part floating barrel is slidably arranged in the float blocking guide groove, the pulley can slide in the float blocking guide groove by means of the water level fluctuation of the reservoir during later operation, the end part floating barrel can drive the pulley to slide in the float blocking guide groove to automatically lift, meanwhile, the float blocking barrel can automatically lift to effectively block floating dirt in the reservoir area, and therefore the pulley does not need a special person to watch and a power device, and later-period maintenance is convenient and simple.
Description
Technical Field
The invention belongs to the field of water conservancy and hydropower engineering, and particularly relates to a float stopping facility and a construction method thereof.
Background
Most of high dam and large reservoir projects have annual adjustment and perennial adjustment functions, so that the water level has very large falling depth, and the maximum falling depth reaches 80 m. Because the floating objects such as domestic garbage, aquatic plants, branches and the like in the reservoir water are more, the safe operation of a reservoir power station is seriously endangered, and a trash rack is often arranged at a water inlet of the power station in the design of the power station to intercept floating dirt in a reservoir area; in practical application, however, the trash rack is often blocked due to large amount of the trash, so that a water head is reduced and the output of a unit is reduced, thereby affecting the power generation benefit; the trash rack structure can be damaged if the weight is heavy, and the operation safety of the unit is endangered if the weight is heavy. Therefore, a floating blocking facility is arranged in front of the power station inlet so as to effectively block floating objects in the reservoir area, and the device plays a vital role in the safe operation of the power station and the protection of the generator set.
However, the existing float blocking facilities cannot adapt to large water level amplitude variation, or a special power system or a specially-assigned person is required to be configured for manual traction, or a high bent needs to be newly built to form a float blocking guide groove, or gaps are inevitably formed at two ends under the condition that reservoir water level amplitude is large, so that the problems of leakage exists in blocking, thorough blocking of floaters and the like cannot be caused, and the float blocking devices are large in investment, complex in structure and relatively difficult in later-stage operation and maintenance.
Disclosure of Invention
The invention aims to provide a floating stopping facility which can automatically lift along with the rise and fall of the water level so as to effectively stop floating dirt in a reservoir area.
The technical scheme adopted by the invention for solving the technical problems is as follows: the float stopping facility comprises two float stopping guide groove buttresses which are respectively arranged at the left side and the right side of a water inlet of the power station, wherein a float stopping guide groove is arranged on each float stopping guide groove buttress, a tackle capable of moving up and down is slidably arranged in each float stopping guide groove, and an end part float bowl is hinged on each tackle; the end part buoys are two in total, and at least two float blocking buoys are connected in series between the two end part buoys.
Further, an embedded part is arranged in the floating guide groove buttress, and the floating guide groove and the embedded part are fixedly connected together.
Further, the float blocking guide groove is vertically arranged on the float blocking guide groove buttress.
Furthermore, the pulley comprises a pulley body and two groups of rollers arranged on the pulley body, wherein the two groups of rollers respectively correspond to the two groove walls of the float blocking guide groove.
The invention also provides a construction method of the float stopping facility, which is used for constructing the float stopping facility.
Further, the construction method of the floating stopping facility comprises the following steps:
step one, treating bottom foundations on the left side and the right side of a water inlet of a power station, binding buttress steel bars on the bottom foundations according to a construction drawing, embedding embedded parts, erecting buttress templates around the buttress steel bars, and pouring first-stage concrete to form a float-blocking guide groove buttress with a reserved groove;
step two, after the first-stage concrete reaches the strength of 7 days, dismantling the buttress templates and carrying out flow maintenance until the first-stage concrete reaches the strength of 28 days;
roughening the reserved groove of the float-stopping guide groove buttress until coarse aggregate is exposed, and resetting and straightening embedded parts in the first-stage concrete;
fourthly, carrying out rust removal and corrosion prevention treatment on the float blocking guide groove, and cleaning and carrying out rust removal treatment on the exposed end of the embedded part; then the float stopping guide groove is arranged in a reserved groove of a buttress of the float stopping guide groove, and the float stopping guide groove is fixedly connected with the exposed end of the embedded part;
fifthly, after the float blocking guide groove is installed and accepted, erecting a guide groove template according to a construction drawing, and forming a second-stage concrete pouring bin between the float blocking guide groove and the reserved groove; after sundries in the second-stage concrete pouring bin are thoroughly removed, second-stage concrete is poured in the second-stage concrete pouring bin, and the strength grade of the second-stage concrete is not lower than that of the first-stage concrete;
step six, after the second-stage concrete reaches the strength of 7 days, dismantling the guide groove template and carrying out flow maintenance until the second-stage concrete reaches the strength of 28 days;
a pulley is arranged in the float blocking guide groove and can slide along the float blocking guide groove to ascend or descend; and the end part buoys are hinged on the pulley, and at least two float blocking buoys are connected in series between the two end part buoys.
The invention has the beneficial effects that: the float stopping facility is provided with float stopping guide groove buttresses at the left side and the right side of a water inlet of a power station, and a large-scale bent frame structure is not needed, so that the engineering investment is saved; a plurality of blocking floating barrels are connected in series between the two end part floating barrels to intercept floating dirt in a reservoir area, the pulley hinged to the end part floating barrels can be slidably arranged in the blocking floating guide groove to move up and down, the pulley is close to reservoir water level fluctuation during later operation, the end part floating barrels can drive the pulley to slide in the blocking floating guide groove to slide in an automatic lifting mode under the action of buoyancy, meanwhile, the blocking floating barrels can automatically lift under the action of buoyancy to effectively intercept floating dirt in the reservoir area, and therefore a special person is not needed to watch on and a power device, later-stage maintenance is convenient and simple, and operation and maintenance cost in the later stage of blocking floating facilities is reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a float stopping facility according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a cross-sectional view of the float guide channel rest of the present invention;
labeled as: the floating guide channel comprises a power station water inlet 100, a floating guide channel buttress 210, an embedded part 211, first-stage concrete 212, second-stage concrete 213, a floating guide channel 220, a tackle 230, an end buoy 240 and a floating guide buoy 250.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1, 2 and 3, the float stopping facility includes two float stopping guide groove buttresses 210 respectively disposed at the left and right sides of the water inlet 100 of the power station, a float stopping guide groove 220 is disposed on each float stopping guide groove buttress 210, a pulley 230 capable of moving up and down is slidably disposed in each float stopping guide groove 220, and an end float 240 is hinged to each pulley 230; the end buoys 240 are two in total, and at least two float blocking buoys 250 are connected in series between the two end buoys 240.
The floating stopping facility can make the pulley 230 slide along the floating stopping guide groove 220 to automatically lift and descend along with the rise and fall of the reservoir water level by utilizing the buoyancy of the end part buoy 240; meanwhile, by utilizing the buoyancy of the float blocking buoys 250, as the reservoir water level rises and falls, the plurality of float blocking buoys 250 connected in series between the two end buoys 240 can automatically rise and fall along with the rise and fall of the water level so as to effectively block the floating dirt in the reservoir area.
The float stopping guide groove buttress 210 is a float stopping facility body, is generally arranged on the bottom foundations of the left side and the right side of the power station water inlet 100, and is preferably of a reinforced concrete structure; a plurality of embedded parts 211 are generally arranged in the float guide channel buttress 210 and are fixedly connected with the float guide channel 220.
The float guide groove 220 is a guide rail of the pulley 230, and is generally vertically arranged on the float guide groove buttress 210, and before installation, rust removal and corrosion prevention treatment is generally required to be carried out on the float guide groove 220.
The sled 230 is a sliding member that can be of various configurations, such as: trolleys with guide wheels, slider structures, ball structures, etc.; preferably, the pulley 230 includes a body and two sets of rollers disposed on the body, and the two sets of rollers respectively correspond to two groove walls of the float blocking guide groove 220.
The end float 240 is mainly used for driving the pulley 230 to move up and down along with the rise and fall of the reservoir water level; the end buoy 240 is hinged to the trolley 230 to facilitate position adjustment, so as to avoid an interception gap generated under the condition that the water level amplitude is large.
The floating blocking buoys 250 are mainly used for blocking floating dirt in a reservoir area and are generally arranged in a plurality, and two adjacent floating blocking buoys 250 are generally connected through flexible barrier nets or hinged through rigid barrier nets.
Preferably, and as further shown in FIG. 1, the float retaining buoys 250 connected in series between the two end buoys 240 are in an arch configuration that is convex upstream. Arrange according to this structure and block a section of thick bamboo 250 that floats, the interception area is bigger, and it is more to intercept the floating filth in reservoir area, and it is more convenient to clear up, and arched structural strength is higher, prevents blockking up effectually.
The invention also provides a construction method of the float stopping facility, which is used for constructing the float stopping facility.
The construction method of the float blocking facility comprises the following steps:
step one, treating bottom foundations on the left side and the right side of a water inlet 100 of the power station, binding buttress steel bars on the bottom foundations according to a construction drawing, embedding embedded parts 211, erecting buttress templates around the buttress steel bars after the procedures are completed and the embedded parts are qualified by acceptance, and pouring first-stage concrete 212 to form a float-stopping guide groove buttress 210 with a reserved groove; the first stage concrete 212 generally requires that the side piers of the plant water inlet 100 be cast with the labeled concrete; all measurement indexes of the built-in fitting 211 in the first-stage concrete 212 after manufacture and installation meet the relevant requirements of a drawing and the relevant requirements of 'Water and Electrical engineering Steel Gate manufacture, installation and acceptance Standard' (NB/T35045-2014);
step two, after the first-stage concrete 212 reaches the strength of 7 days, dismantling the buttress templates and carrying out flow maintenance until the first-stage concrete 212 reaches the strength of 28 days;
roughening the reserved groove of the float-stopping guide groove buttress 210 until coarse aggregate is exposed, and resetting and straightening the embedded part 211 in the first-stage concrete 212;
fourthly, carrying out rust removal and corrosion prevention treatment on the float blocking guide groove 220, and cleaning and carrying out rust removal treatment on the exposed end of the embedded part 211; then the float stopping guide groove 220 is arranged in a reserved groove of the float stopping guide groove buttress 210, and the float stopping guide groove 220 is fixedly connected with the exposed end of the embedded part 211; the installation of the float stopping guide groove 220 is in accordance with the relevant requirements of drawings and the 'hydropower engineering steel gate manufacturing installation and acceptance standard' (NB/T35045-2014);
fifthly, after the float stopping guide groove 220 is installed and accepted, erecting a guide groove template according to a construction drawing, and forming a second-stage concrete pouring bin between the float stopping guide groove 220 and the reserved groove; after the sundries in the second-stage concrete pouring bin are completely removed, second-stage concrete 213 is poured into the second-stage concrete pouring bin, and the strength grade of the second-stage concrete 213 is not lower than that of the first-stage concrete 212, as shown in fig. 3;
step six, after the second-stage concrete 213 reaches the strength of 7 days, dismantling the guide groove template and carrying out flow maintenance until the second-stage concrete 213 reaches the strength of 28 days;
seventhly, installing a pulley 230 in the float blocking guide groove 220, wherein the pulley 230 can slide along the float blocking guide groove 220 to ascend or descend; an end pontoon 240 is hinged to the trolley 230, and finally at least two float retaining pontoons 250 are connected in series between the two end pontoons 240, as shown in fig. 1.
Preferably, the construction method of the float stopping facility further comprises the step eight;
step eight, debugging float blocking facilities; specifically included is testing the smoothness of travel of the trolley 230 in the float-arresting channel 220.
Claims (6)
1. Block and float facility, its characterized in that: the floating guide groove support pier comprises two floating guide groove support piers (210) which are respectively arranged on the left side and the right side of a water inlet (100) of a power station, wherein a floating guide groove (220) is arranged on each floating guide groove support pier (210), a pulley (230) capable of moving up and down is slidably arranged in each floating guide groove (220), and an end part floating barrel (240) is hinged to each pulley (230); the number of the end buoys (240) is two, and at least two float blocking buoys (250) are connected in series between the two end buoys (240).
2. A float stopping facility as claimed in claim 1, wherein: an embedded part (211) is arranged in the float blocking guide groove buttress (210), and the float blocking guide groove (220) is fixedly connected with the embedded part (211).
3. A float stopping facility as claimed in claim 1 or 2, wherein: the float blocking guide groove (220) is vertically arranged on the float blocking guide groove buttress (210).
4. A float stopping facility as claimed in claim 3, wherein: the pulley (230) comprises a trolley body and two groups of rollers arranged on the trolley body, wherein the two groups of rollers respectively correspond to two groove walls of the float blocking guide groove (220).
5. The construction method of the float blocking facility is characterized in that: the floating stopping facility is used for constructing the floating stopping facility as claimed in any one of claims 1 to 4.
6. The construction method of the float stopping facility as claimed in claim 5, comprising the steps of:
firstly, treating bottom foundations on the left side and the right side of a water inlet (100) of a power station, binding buttress steel bars on the bottom foundations according to a construction drawing, embedding embedded parts (211), erecting buttress templates around the buttress steel bars, and pouring first-stage concrete (212) to form a float-stopping guide groove buttress (210) with a reserved groove;
step two, after the first-stage concrete (212) reaches the strength of 7 days, dismantling the buttress templates and carrying out flow maintenance until the first-stage concrete (212) reaches the strength of 28 days;
roughening the reserved groove of the float-blocking guide groove buttress (210) until coarse aggregate is exposed, and resetting and straightening embedded parts (211) in the first-stage concrete (212);
fourthly, carrying out rust removal and corrosion prevention treatment on the float blocking guide groove (220), and cleaning the exposed end of the embedded part (211) and carrying out rust removal treatment; then the float stopping guide groove (220) is arranged in a reserved groove of the float stopping guide groove buttress (210), and the float stopping guide groove (220) is fixedly connected with the exposed end of the embedded part (211);
fifthly, after the floating guide groove (220) is installed and accepted, erecting a guide groove template according to a construction drawing, and forming a second-stage concrete pouring bin between the floating guide groove (220) and the reserved groove; after sundries in the second-stage concrete pouring bin are thoroughly removed, second-stage concrete (213) is poured in the second-stage concrete pouring bin, and the strength grade of the second-stage concrete (213) is not lower than that of the first-stage concrete (212);
step six, after the second-stage concrete (213) reaches the strength of 7 days, dismantling the guide groove template and carrying out flow maintenance until the second-stage concrete (213) reaches the strength of 28 days;
seventhly, installing a pulley (230) in the float blocking guide groove (220), wherein the pulley (230) can slide along the float blocking guide groove (220) to ascend or descend; and then the end part buoys (240) are hinged on the pulley (230), and finally at least two float blocking buoys (250) are connected in series between the two end part buoys (240).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730053.4A CN111827209A (en) | 2020-07-27 | 2020-07-27 | Float stopping facility and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730053.4A CN111827209A (en) | 2020-07-27 | 2020-07-27 | Float stopping facility and construction method thereof |
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| Publication Number | Publication Date |
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| CN111827209A true CN111827209A (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010730053.4A Pending CN111827209A (en) | 2020-07-27 | 2020-07-27 | Float stopping facility and construction method thereof |
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| CN (1) | CN111827209A (en) |
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2020
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Application publication date: 20201027 |
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