CN212000959U - Arrangement structure of bulb type tubular turbine set power station - Google Patents
Arrangement structure of bulb type tubular turbine set power station Download PDFInfo
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- CN212000959U CN212000959U CN202020320931.0U CN202020320931U CN212000959U CN 212000959 U CN212000959 U CN 212000959U CN 202020320931 U CN202020320931 U CN 202020320931U CN 212000959 U CN212000959 U CN 212000959U
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- 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
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Abstract
The utility model discloses an arrangement structure of a bulb-type tubular turbine unit power station, which comprises a dam body, wherein the top surface of the dam body is provided with an upstream landing leg track and a downstream landing leg track which are communicated along the length direction of the dam body and are arranged in parallel; a group of water inlet trash rack grooves, a group of drain gate stoplog access door grooves and a group of water inlet access door grooves which are sequentially arranged along the water flow direction are formed in the dam body between the upstream supporting leg rail and the downstream supporting leg rail; the water inlet trash rack grooves and the water inlet access door grooves are arranged along the length direction of the water diversion power generation section; the group of drainage gate stoplog access door slots are arranged along the length direction of the drainage section; a drainage gate stop log access door garage and a water inlet access door garage are arranged at the end part of the drainage section between the upstream supporting leg track and the downstream supporting leg track; and a group of water inlet access door storehouses are arranged at the end parts of the water diversion and power generation sections between the upstream supporting leg tracks and the downstream supporting leg tracks. The utility model discloses need not to extend dam length, just can be more set up the door storehouse, can save the investment greatly.
Description
Technical Field
The utility model relates to an arrangement structure in bulb formula through-flow unit power station belongs to hydraulic and hydroelectric engineering metal construction technical field.
Background
Bulb turbine plants are generally composed of a water discharge section and a water diversion and power generation section. The water discharge section is of a water gate structure, a water discharge gate stoplog maintenance gate and an arc-shaped working gate are sequentially arranged along the water flow direction, and the stoplog maintenance gate is operated by a gate machine at the top of the dam; the radial working gate is operated by a back-pull hydraulic press with hinged end supports. The water diversion power generation section is sequentially provided with a water inlet trash rack, a water inlet overhaul gate and a tail water accident gate along the water flow direction. The water inlet trash rack and the water inlet overhaul gate share the dam top gate machine for operation. In order to reduce the track gauge of the dam top gantry crane, a sluice gate stoplog access gate groove and a water inlet access gate groove are only arranged between the upstream supporting leg rail and the downstream supporting leg rail of the dam top gantry crane. The water inlet trash rack groove is arranged on the upstream side of the track of the upstream steel supporting leg of the dam top gantry crane, and the sluice gate stoplog maintenance gate and the water inlet maintenance gate are operated by adopting a movable trolley in the upstream steel supporting leg and the downstream steel supporting leg of the dam top gantry crane. The water inlet trash rack is operated by a cantilever type movable trolley arranged on the upstream side of a gate machine on the top of the dam. The dam top gantry crane has the advantages that for the hydroelectric engineering that the number of units is small, the opening and closing capacity of the water inlet trash rack is smaller than that of a sluicing gate stoplog overhaul gate and that of a water inlet overhaul gate, the opening and closing capacity is smaller than that of the sluicing gate stoplog overhaul gate and the water inlet overhaul gate, and the difference is larger, when a cantilever type movable trolley arranged on the upstream side of a gantry crane on the dam top is operated, the anti-overturning capacity of the downstream side of the upstream supporting leg of the gantry crane is not exceeded, the downstream side of the gantry crane does not need to be. However, for the hydroelectric engineering with a large number of units and larger or smaller opening and closing capacity of a water inlet trash rack than that of a sluice gate stoplog overhaul gate and a water inlet overhaul gate, and the opening and closing capacity is not different greatly, when the cantilever type movable trolley arranged on the upstream side of a gate machine on the top of a dam is operated, the acting moment is easily beyond the anti-overturning capacity of the downstream side of the upstream landing leg of the gate machine because the load acting position is outside the upstream landing leg and the downstream landing leg of the gate machine, and the downstream side of the gate machine needs to be added with a balance; and the number of the door storehouses arranged in the upstream and downstream steel supporting legs of the gantry crane cannot meet the requirement of storing the gate, and the length of the dam needs to be increased to arrange the door storehouses, so that the investment is increased. In addition, the height of the gate dam of the bulb turbine unit power station is usually lower, the flood discharge water surface line is gentle, and during a normal power generation state, the downstream water level is usually higher, and the arc-shaped working gate slot is underwater and does not have an overhaul condition. And the upper hinged support of the oil cylinder of the back-pull hydraulic machine which is supported by the hinged support at the end part and is usually adopted by the arc-shaped working gate hydraulic machine generally exceeds the dam crest, a concrete pier is required to be arranged to fix the hinged support of the hydraulic oil cylinder, for some arc-shaped working gates with larger height, the center of the hinged support at the upper part of the hydraulic oil cylinder exceeds the dam crest by more than 5m, and the concrete pier for fixing the hinged support of the hydraulic oil cylinder exceeds the dam crest by nearly 10 m. The existing hydraulic pump station is usually arranged on a gate top platform in front of a concrete pier for fixing a hydraulic oil cylinder hinged support, and the hydraulic pump station needs to increase the pressure level for supplying oil compared with the oil cylinder hinged support because the hydraulic pump station is lower than the oil cylinder hinged support, and sometimes needs to be additionally provided with a pressure pump, so that the investment is increased. Therefore, the prior art has defects and needs to be further improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an arrangement structure in bulb formula through-flow unit power station need not extension dam length, can be more set up the door storehouse, be convenient for deposit the gate, the hydraulic power unit fuel feeding need not to improve the pressure rating to investment is saved and the not enough of prior art is overcome.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses an arrangement structure of a bulb type tubular turbine unit power station, which comprises a dam body, wherein one end of the dam body is a water diversion power generation section, and the other end of the dam body is a water discharge section; the top surface of the dam body is provided with an upstream supporting leg track and a downstream supporting leg track which are communicated along the length direction of the dam body and are arranged in parallel; a group of water inlet trash rack grooves, a group of drain gate stoplog access door grooves and a group of water inlet access door grooves which are sequentially arranged along the water flow direction are formed in the dam body between the upstream supporting leg rail and the downstream supporting leg rail; the water inlet trash rack grooves and the water inlet access door grooves are arranged along the length direction of the water diversion power generation section; the group of drainage gate stoplog access door slots are arranged along the length direction of the drainage section; a drainage gate stop log access door garage and a water inlet access door garage are arranged at the end part of the drainage section between the upstream supporting leg track and the downstream supporting leg track; and a group of water inlet access door storehouses are arranged at the end parts of the water diversion and power generation sections between the upstream supporting leg tracks and the downstream supporting leg tracks.
In the arrangement structure of the bulb-type tubular turbine unit power station, a large-span dam crest portal crane is arranged at the top between the upstream supporting leg rail and the downstream supporting leg rail, and a rotary crane is arranged at the top of the downstream supporting leg side of the large-span dam crest portal crane.
In the arrangement structure of the bulb-type tubular turbine unit power station, the central lines of the access door storehouses of the sluice gate stop joists and the access door slots of the sluice gate stop joists along the length direction of the dam body are positioned on the same straight line.
In the arrangement structure of the bulb-type tubular turbine unit power station, a water inlet trash rack is arranged in the water inlet trash rack groove; a sluice gate stoplog access gate is arranged in the sluice gate stoplog access gate groove; a water inlet overhaul gate is arranged in the water inlet overhaul gate groove.
In the arrangement structure of the bulb-type tubular turbine unit power station, the water discharge section is provided with a group of arc-shaped working gates, two sides of the lower part of the back water surface of each arc-shaped working gate are hinged with the lower ends of a pair of back-pull hydraulic presses, the middle upper part of each back-pull hydraulic press is hinged with an oil cylinder hinged support, and each oil cylinder hinged support is fixedly connected with the side surface of a trapezoidal concrete pier; and a hydraulic pump station is arranged at the top of the trapezoidal concrete pier and is connected with an oil cylinder of the back-pull type hydraulic machine through a hydraulic oil pipe.
In the arrangement structure of the bulb-type tubular turbine unit power station, the inclined planes on two sides of the trapezoidal concrete pier are provided with the step ladder.
In the arrangement structure of the bulb-type tubular turbine unit power station, the downstream of the arc-shaped working gate is provided with a drainage section downstream overhaul gate, and the top of the dam body of the drainage section downstream overhaul gate is provided with a one-way door machine.
Since the technical scheme is used, the utility model discloses compare with prior art, the utility model discloses bulb through-flow unit power station adopts suitable increase dam crest portal crane span method all to set up in the upper and lower reaches landing leg track of big span dam crest portal crane below with water inlet trash rack groove, sluicing gate stoplog access door groove and water inlet access door groove. The acting loads of the travelling trolleys on the gantry crane at the top of the large-span dam are all positioned at the inner sides of the upper and lower supporting legs of the gantry crane at the top of the large-span dam, and the travelling trolleys cannot overturn under the action of normal loads; and the increase of the track distance of the upstream and downstream supporting legs below the gantry crane at the top of the large-span dam is beneficial to more gate storehouses, is convenient for storing more gates, does not need to lengthen the length of the dam, and effectively saves the investment. The sluice stop stoplog access door storeroom is arranged at the position of the outer end of the sluice stop stoplog access door groove, and the door storeroom corresponds to the position of the central line of the door groove, so that the sluice stop stoplog access door can be operated conveniently. The downstream side of the arc-shaped working gate is provided with a downstream maintenance gate of the water release section, the downstream maintenance gate of the water release section adopts the design of the downstream normal tail water level, and the increase investment is less when the small-probability maintenance of the arc-shaped working gate slot is met. The arc-shaped working gate adopts a pair of back-pull hydraulic presses which are rotatably hinged and supported at the middle upper part to operate, so that the central elevation of the oil cylinder hinged support can be reduced, the height of a trapezoidal concrete pier for fixing the oil cylinder hinged support is effectively reduced, and the trapezoidal concrete pier is trapezoidal with a step at the upstream and downstream and is convenient to walk. The hydraulic pump station is arranged at the top of the trapezoidal concrete pier, the height of the hydraulic pump station is higher than that of the oil cylinder hinged support, the oil supply of the hydraulic pump station does not need to improve the pressure grade, the investment can be saved, and the downstream supporting leg of the large-span dam top gantry crane is provided with a rotary crane to facilitate installation and maintenance of the pull-back hydraulic machine.
Drawings
Fig. 1 is a schematic plan view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a sectional view B-B of fig. 1.
The figures are labeled as follows: 1-large-span dam top gate machine, 2-upstream supporting leg rail, 3-downstream supporting leg rail, 4-water inlet trash rack groove, 5-sluice gate stop-log access gate groove, 6-water inlet access gate groove, 7-water inlet trash rack, 8-sluice gate stop-log access gate, 9-water inlet access gate, 10-sluice gate stop-log access gate warehouse, 11-water inlet access gate warehouse, 12-arc working gate, 13-sluice section downstream access gate, 14-one-way gate machine, 15-rotary crane, 16-pull-back type hydraulic machine, 17-oil cylinder hinged support, 18-step ladder, 19-trapezoidal concrete pier, 20-hydraulic pump station and 21-downstream supporting leg.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model is formed according to the transformation method of the bulb type tubular turbine set power station, as shown in figures 1 to 3, the method comprises the transformation of a water diversion power generation section and a water discharge section; by adopting the large-span dam top gantry crane 1 and properly increasing the distance between the upstream supporting leg track 2 and the downstream supporting leg track 3 at the top of the dam, a water inlet trash rack groove 4 and a water inlet maintenance gate groove 6 of a water diversion power generation section and a water drainage gate stopbeam maintenance gate groove 5 of a water drainage section are all arranged between the upstream supporting leg track 2 and the downstream supporting leg track 3, so that the dam top gantry crane 1 is prevented from overturning due to load deflection caused by the arrangement of a movable trolley on the outer side of the large-span dam top gantry crane 1; meanwhile, more sluice gate stop log access door storehouses 10 and water inlet access door storehouses 11 can be arranged between the upstream supporting leg track 2 and the downstream supporting leg track 3, and the central line of the sluice gate stop log access door storehouse 10 and the central line of the sluice gate stop log access door slot 5 are ensured to be positioned on the same straight line, so that the sluice gate stop log access door 8 can be conveniently stored; the length of the dam does not need to be lengthened, and the construction investment is effectively reduced. The water discharge section is improved by hinging a hanging head of a pair of back-pull hydraulic presses 16 with the two sides of the lower part of the back surface of the arc-shaped working gate 12, and the middle upper part of the back-pull hydraulic press 16 is hinged with the side surface of a trapezoidal concrete pier 19 through an oil cylinder hinged support 17; a hydraulic pump station 20 for providing power for the back-pull type hydraulic machine 16 is arranged on the top surface of the trapezoidal concrete pier 19; so as to achieve the purpose of reducing the height of the trapezoidal concrete pier 19 and the position of the hydraulic pump station 20 higher than the rear-pull hydraulic machine 16.
The utility model discloses a layout structure of a bulb-type turbine power station, which is formed according to the transformation method of the bulb-type turbine power station, as shown in figures 1-3, the structure comprises a dam body, one end of the dam body is a water diversion power generation section, and the other end of the dam body is a water discharge section; the method is characterized in that: the top surface of the dam body is provided with an upstream supporting leg track 2 and a downstream supporting leg track 3 which are communicated along the length direction of the dam body and are arranged in parallel; a group of water inlet trash rack grooves 4, a group of water drain gate stoplog access door grooves 5 and a group of water inlet access door grooves 6 which are sequentially arranged along the water flowing direction are arranged in the dam body between the upstream supporting leg rail 2 and the downstream supporting leg rail 3; a group of water inlet trash rack grooves 4 and a group of water inlet access door grooves 6 are arranged along the length direction of the water diversion power generation section; a group of drainage gate stoplog access door slots 5 are arranged along the length direction of the drainage section; a sluice gate stoplog access door storeroom 10 and a water inlet access door storeroom 11 are arranged at the end part of the sluice section between the upstream supporting leg track 2 and the downstream supporting leg track 3; a group of water inlet access door storehouses 11 are arranged at the end part of the water diversion and power generation section between the upstream supporting leg track 2 and the downstream supporting leg track 3. The top between the upstream supporting leg track 2 and the downstream supporting leg track 3 is provided with a large-span dam crest gantry crane 1, and the top of the downstream supporting leg 21 side of the large-span dam crest gantry crane 1 is provided with a rotary crane 15. The central lines of the sluice gate stoplog access door storeroom 10 and the sluice gate stoplog access door groove 5 along the length direction of the dam body are positioned on the same straight line. A water inlet trash rack 7 is arranged in the water inlet trash rack groove 4; a sluice gate stoplog access gate 8 is arranged in the sluice gate stoplog access gate groove 5; a water inlet maintenance gate 9 is arranged in the water inlet maintenance gate groove 6. The water discharge section is provided with a group of arc-shaped working gates 12, two sides of the lower part of the back water surface of the arc-shaped working gates 12 are hinged with the lower ends of a pair of back-pull hydraulic machines 16, the middle upper parts of the back-pull hydraulic machines 16 are hinged with oil cylinder hinged supports 17, and the oil cylinder hinged supports 17 are fixedly connected with the side surfaces of trapezoidal concrete piers 19; the top of the trapezoidal concrete pier 19 is provided with a hydraulic pump station 20, and the hydraulic pump station 20 is connected with an oil cylinder of the back-pull type hydraulic machine 16 through a hydraulic oil pipe. The inclined planes on the two sides of the trapezoidal concrete pier 19 are provided with a step 18. A water discharge section downstream maintenance gate 13 is arranged at the downstream of the arc-shaped working gate 12, and a one-way door machine 14 is arranged at the top of a dam body of the water discharge section downstream maintenance gate 13.
In specific implementation, a dam top portal crane 1 is arranged on the upstream side of a bulb turbine power station. A water inlet trash rack groove 4, a drain gate stoplog access door groove 5 and a water inlet access door groove 6 are sequentially arranged in the upstream supporting leg rail 2 and the downstream supporting leg rail 3 of the large-span dam top gantry crane 1 along the water flow direction, and a water inlet trash rack 7 is arranged in the water inlet trash rack groove 4; a sluice gate stoplog overhaul gate 8 is arranged in the sluice gate stoplog overhaul gate groove 5; a water inlet maintenance gate 9 is arranged in the water inlet maintenance gate groove 6; arranging a sluice gate stoplog access door storehouse 10 and a water inlet access door storehouse 11 in the end parts of an upstream supporting leg track 2 and a downstream supporting leg track 3 of a large-span dam top gantry crane 1; an arc-shaped working gate 12 and a drainage section downstream maintenance gate 13 are sequentially arranged on the downstream side of the drainage gate stoplog maintenance gate 8 along the water flow direction; the downstream maintenance gate 13 of the drainage section is designed according to the downstream normal tail water level and operated by a one-way gantry crane 14; the radial working gate 12 is operated by a pair of back-pull hydraulic presses 16 supported by a middle upper rotary hinge; the oil cylinder hinged supports 17 of a pair of back-pull hydraulic machines 16 are fixed in trapezoidal concrete piers 19 with steps 18 at the upstream and the downstream; a hydraulic pump station 20 is arranged at the top of the trapezoid concrete pier 19 with the step 18 at the upstream and the downstream; the sluice gate stoplog maintenance gate storeroom 10 is arranged at the outer side end part of the sluice gate stoplog maintenance gate slot 5, and the gate storeroom corresponds to the center line position of the gate slot; and a rotary crane 15 is arranged on a downstream supporting leg 21 of the large-span dam top gantry crane 1.
The utility model discloses a properly increase dam crest portal crane span method and block dirty bars groove, sluicing floodgate stoplog access door groove and water inlet access door groove with the water inlet and all set up in the upper and lower reaches landing leg track of big span dam crest portal crane below. The acting loads of the travelling trolleys on the gantry crane at the top of the large-span dam are all positioned at the inner sides of the upper and lower supporting legs of the gantry crane at the top of the large-span dam, and the travelling trolleys cannot overturn under the action of normal loads; and the increase of the track distance of the upstream and downstream supporting legs below the gantry crane at the top of the large-span dam is beneficial to more gate storehouses, is convenient for storing more gates, does not need to lengthen the length of the dam, and effectively saves the investment. The sluice stop stoplog access door storeroom is arranged at the position of the outer end of the sluice stop stoplog access door groove, and the door storeroom corresponds to the position of the central line of the door groove, so that the sluice stop stoplog access door can be operated conveniently. The downstream side of the arc-shaped working gate is provided with a downstream maintenance gate of the water release section, the downstream maintenance gate of the water release section adopts the design of the downstream normal tail water level, and the increase investment is less when the small-probability maintenance of the arc-shaped working gate slot is met. The arc-shaped working gate adopts a pair of back-pull hydraulic presses which are rotatably hinged and supported at the middle upper part to operate, so that the central elevation of the oil cylinder hinged support can be reduced, the height of a trapezoidal concrete pier for fixing the oil cylinder hinged support is effectively reduced, and the trapezoidal concrete pier is trapezoidal with a step at the upstream and downstream and is convenient to walk. The hydraulic pump station is arranged at the top of the trapezoidal concrete pier, the height of the hydraulic pump station is higher than that of the oil cylinder hinged support, the oil supply of the hydraulic pump station does not need to improve the pressure grade, the investment can be saved, and the downstream supporting leg of the large-span dam top gantry crane is provided with a rotary crane to facilitate installation and maintenance of the pull-back hydraulic machine.
Claims (7)
1. An arrangement structure of a bulb type tubular turbine unit power station comprises a dam body, wherein one end of the dam body is a water diversion power generation section, and the other end of the dam body is a water drainage section; the method is characterized in that: the top surface of the dam body is provided with an upstream supporting leg track (2) and a downstream supporting leg track (3) which are communicated along the length direction of the dam body and are arranged in parallel; a group of water inlet trash rack grooves (4), a group of water drain gate stop catch gate grooves (5) and a group of water inlet access gate grooves (6) which are sequentially arranged along the water flow direction are arranged in the dam body between the upstream supporting leg rail (2) and the downstream supporting leg rail (3); a group of water inlet trash rack grooves (4) and a group of water inlet access door grooves (6) are arranged along the length direction of the water diversion power generation section; a group of sluice gate stoplog access door slots (5) are arranged along the length direction of the sluice section; a sluice gate stoplog access door storeroom (10) and a water inlet access door storeroom (11) are arranged at the end part of the sluice section between the upstream supporting leg track (2) and the downstream supporting leg track (3); a group of water inlet access door storehouses (11) are arranged at the end parts of the water diversion and power generation sections between the upstream supporting leg tracks (2) and the downstream supporting leg tracks (3).
2. Arrangement in a bulb-type turbine power plant according to claim 1, characterized in that: the top between the upstream landing leg track (2) and the downstream landing leg track (3) is provided with a large-span dam crest gantry crane (1), and the top of the downstream landing leg (21) side of the large-span dam crest gantry crane (1) is provided with a rotary crane (15).
3. Arrangement in a bulb-type turbine power plant according to claim 1, characterized in that: the central lines of the sluice gate stoplog access door storeroom (10) and the sluice gate stoplog access door groove (5) along the length direction of the dam body are positioned on the same straight line.
4. An arrangement of a bulb-type turbine power plant according to claim 1, characterized in that: a water inlet trash rack (7) is arranged in the water inlet trash rack groove (4); a sluice gate stoplog access gate (8) is arranged in the sluice gate stoplog access gate groove (5); a water inlet maintenance gate (9) is arranged in the water inlet maintenance gate groove (6).
5. The bulb-type turbine generator plant arrangement of claim 1, wherein: the water discharge section is provided with a group of arc-shaped working gates (12), two sides of the lower part of the back water surface of each arc-shaped working gate (12) are hinged with the lower ends of a pair of back-pull hydraulic machines (16), the middle upper part of each back-pull hydraulic machine (16) is hinged with an oil cylinder hinged support (17), and each oil cylinder hinged support (17) is fixedly connected with the side surface of a trapezoidal concrete pier (19); the top of the trapezoidal concrete pier (19) is provided with a hydraulic pump station (20), and the hydraulic pump station (20) is connected with an oil cylinder of the back-pull type hydraulic machine (16) through a hydraulic oil pipe.
6. Arrangement in a bulb-type turbine power plant according to claim 5, characterized in that: the inclined planes on the two sides of the trapezoidal concrete pier (19) are provided with a step ladder (18).
7. Arrangement in a bulb-type turbine power plant according to claim 5, characterized in that: the downstream of the arc-shaped working gate (12) is provided with a water discharge section downstream maintenance gate (13), and the top of a dam body of the water discharge section downstream maintenance gate (13) is provided with a one-way door machine (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020320931.0U CN212000959U (en) | 2020-03-16 | 2020-03-16 | Arrangement structure of bulb type tubular turbine set power station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020320931.0U CN212000959U (en) | 2020-03-16 | 2020-03-16 | Arrangement structure of bulb type tubular turbine set power station |
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| CN212000959U true CN212000959U (en) | 2020-11-24 |
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| CN202020320931.0U Active CN212000959U (en) | 2020-03-16 | 2020-03-16 | Arrangement structure of bulb type tubular turbine set power station |
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| CN (1) | CN212000959U (en) |
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