CN114855713B - Layered water taking system of underwater floating type flat gate - Google Patents
Layered water taking system of underwater floating type flat gate Download PDFInfo
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- CN114855713B CN114855713B CN202210795009.0A CN202210795009A CN114855713B CN 114855713 B CN114855713 B CN 114855713B CN 202210795009 A CN202210795009 A CN 202210795009A CN 114855713 B CN114855713 B CN 114855713B
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- 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
- E02B7/22—Stop log dams; Emergency gates
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- 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
- E02B7/26—Vertical-lift gates
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- 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
- E02B7/26—Vertical-lift gates
- E02B7/36—Elevating mechanisms for vertical-lift gates
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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
- 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
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Abstract
The invention relates to the technical field of hydraulic and hydroelectric engineering, in particular to a layered water taking system of an underwater floating flat gate, which is arranged at a water taking port of a reservoir and comprises: the base side wall is arranged on at least one side of the water flow direction; the laminated beam door body is arranged on the side wall of the base in a sliding mode along the vertical direction; the flat gate body is perpendicular to the side wall of the base, the flat gate body is slidably mounted on the side wall of the base along the vertical direction, the lifting device is mounted between the flat gate body and the side wall of the base, the flat gate body comprises a water retaining portion and a water retaining portion, the water retaining portion is perpendicular to the water retaining portion, the water retaining portion is parallel to the stop log door body, and the water retaining portion is arranged between the water retaining portion and the stop log door body. The water taking height is controlled above the stop log gate body through the flat gate body, so that the height of the stop log gate body is adjusted under the working condition of water movement, the water taking layer is adjusted, the time required by the height adjustment of the stop log gate body is shortened, and the influence on power dispatching during the height adjustment of the stop log gate body is eliminated.
Description
Technical Field
The invention relates to the technical field of hydraulic and hydroelectric engineering, in particular to a layered water taking system of an underwater floating flat gate.
Background
The water temperature plays an important role in physical, chemical and biological processes in a water ecological system, is a basic element in water environment research, and has a wide influence range. And stratified water taking is a main beneficial measure for relieving the influence of low water temperature discharged from a reservoir or a hydropower station. After the water dam realizes layered water taking, the problem of the water temperature of the dam discharged downwards can be solved, and the biological population structure of the downstream river channel is protected from being damaged. The layered water taking measures under the condition of large flow mainly comprise a multilayer water taking port, a stop log door, a waterproof curtain and the like.
The operation principle of the stop log door in the prior art is that after the water level rises, a series of gates are placed to block a certain range in front of a water intake of a power station, so that the water intake elevation of the power station is moved to the top of the stop log door from the water intake, and a water body with a higher upper temperature is taken under the condition of water temperature stratification in a reservoir area. Because the lifting difficulty of the stop log gate in the running water is high, when the stop log gate is used for layered water taking, the stop log gate needs to be lifted in advance, the operation time is long, and the influence on the power dispatching of each large hydropower project is large; the single-layer stoplog door is fixed in height, cannot be dynamically and adaptively adjusted according to the incoming water temperature, and has a limited effect of improving the let-down water temperature.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the stop log gate in the hydraulic engineering in the prior art cannot be lifted and placed in the running water and cannot be dynamically and adaptively adjusted according to the incoming water temperature, so that the layered water taking system of the underwater floating flat gate is provided.
In order to solve the above technical problem, the present invention provides an underwater floating plate gate layered water intake system installed at a water intake of a reservoir, comprising:
the base side wall is arranged on at least one side of the water flow direction;
the laminated beam door body is arranged on the side wall of the base in a sliding mode along the vertical direction;
the flat gate body is perpendicular to the side wall of the base, the flat gate body is slidably mounted on the side wall of the base along the vertical direction, the lifting device is mounted between the flat gate body and the side wall of the base, the flat gate body comprises a water retaining portion and a water retaining portion, the water retaining portion is perpendicular to the water retaining portion, the water retaining portion is parallel to the stop log door body, and the water retaining portion is arranged between the water retaining portion and the stop log door body.
Optionally, the lifting device comprises: the side wall of the base is provided with a lifting rack, and the lifting gear is meshed with the lifting rack.
Optionally, the lifting device further comprises a spiral lifting wheel, a threaded cylinder is arranged on the side wall of the base, and the spiral lifting wheel is in threaded fit with the threaded cylinder.
Optionally, a transmission gear is mounted on an output shaft of the driving motor, a first transmission rod is mounted on the transmission gear in a meshed mode, an auxiliary gear is coaxially mounted on the spiral lifting wheel, and one end, far away from the transmission gear, of the first transmission rod is in meshed fit with the auxiliary gear.
Optionally, a second transmission rod is further mounted on the transmission gear in a meshed manner, and one end, far away from the transmission gear, of the second transmission rod is in meshed fit with the lifting gear.
Optionally, the system further comprises a water temperature monitoring device mounted upstream of the stack door body and/or downstream of the flat gate body.
Optionally, the water temperature and water level detection device is further included and is installed in the water body upstream of the laminated beam door body.
Optionally, a floating blocking row is arranged in the water body on the upstream of the stop log door body, and a plurality of water temperature and water level detection devices are arranged on the floating blocking row at intervals.
Optionally, a first sliding part is arranged on the stop log door body in the vertical direction, a second sliding part is arranged on one side, facing the stop log door body, of the water blocking part, and the first sliding part is in sliding fit with the second sliding part.
Optionally, the flat gate body is mounted downstream of the stack gate body.
The technical scheme of the invention has the following advantages:
1. the invention provides an underwater floating flat gate layered water taking system, which is arranged at a water taking port of a reservoir and comprises: the base side wall is arranged on at least one side of the water flow direction; the laminated beam door body is installed on the side wall of the base in a sliding mode along the vertical direction; the flat gate body is perpendicular to the side wall of the base, the flat gate body is slidably mounted on the side wall of the base along the vertical direction, the lifting device is mounted between the flat gate body and the side wall of the base, the flat gate body comprises a water retaining portion and a water retaining portion, the water retaining portion is perpendicular to the water retaining portion, the water retaining portion is parallel to the stop log door body, and the water retaining portion is arranged between the water retaining portion and the stop log door body.
When the reservoir water level begins to rise, the water taking range in the water taking layer is about to exceed the control height of the flat gate body and the stop log door body. The stop log door body slides upwards along the side wall of the base, so that the stop log door body rises to a required position, the lifting device is utilized to drive the flat gate body to climb and rise, the flat gate body is lifted to a required height, and the height of layered water taking is controlled by the flat gate body in combination with the height of the stop log door body. When the reservoir water level begins to descend, the water taking height is controlled by the whole of the flat gate body and the stop log door body, and the height of the stop log door body and the height of the flat gate body can be directly adjusted in the same mode. The flat gate body comprises a water blocking part and a water blocking part, the water blocking part is arranged between the water blocking part and the stop log gate body and used for blocking water flow from flowing away from the water blocking part and the stop log gate body, and the water blocking part is arranged on one side of the stop log gate body and used for controlling the water taking height range of a water layer. Control the water intaking height through the plate gate body in stoplog door body top, make the water of the degree of depth position that stoplog door body is located be equivalent to still water state, can directly adjust the height of stoplog door body, need not to intercept the rivers in the water, realized under the working condition of flowing water to the regulation of stoplog door body height and to the regulation on water intaking layer, shortened greatly and folded the required time of roof beam door body altitude mixture control, and when the adjustment in-process, the rivers of reservoir water intaking mouth department still can flow, power generation system in the cistern need not to shut down the machine and waits, influence to the electric power scheduling in the hydraulic engineering when having eliminated stoplog door body altitude mixture control.
2. The invention provides an underwater floating flat gate layered water taking system, which comprises a lifting device and a water taking device, wherein the lifting device comprises: the side wall of the base is provided with a lifting rack, and the lifting gear is meshed with the lifting rack. The lifting gear is driven to rotate through the driving motor, and the lifting gear is meshed with the lifting rack on the side wall of the base to be matched, so that the flat gate body is driven to be lifted and adjusted, and control is facilitated.
3. The invention provides a layered water taking system of an underwater floating flat gate, which comprises a spiral lifting wheel, wherein a threaded cylinder is arranged on the side wall of a base, and the spiral lifting wheel is in threaded fit with the threaded cylinder. Through utilizing spiral lifting wheel and screw thread section of thick bamboo screw-thread fit and lifting gear and lifting rack meshing cooperation linkage to carry out lift adjustment to the plate gate body, stability when promoting plate gate lift action.
4. The invention provides an underwater floating type flat gate layered water taking system, wherein a transmission gear is mounted on an output shaft of a driving motor, a first transmission rod is mounted on the transmission gear in a meshed mode, an auxiliary gear is coaxially mounted on a spiral lifting wheel, and one end, far away from the transmission gear, of the first transmission rod is matched with the auxiliary gear in a meshed mode. Through setting up first transfer line, utilize driving motor to drive spiral lifting wheel and lifting gear simultaneously, make bolt lifting wheel and lifting gear linkage synchronous action, stability when promoting the lift action of flat gate.
5. The invention provides an underwater floating type flat gate layered water taking system which further comprises a water temperature monitoring device, wherein the water temperature monitoring device is arranged on the upstream of the stop log door body and/or the downstream of the flat gate body. Through installation temperature monitoring devices, carry out real-time supervision to the temperature of upper and lower reaches, adjust the water intaking height and then realize the real-time control to bulkhead gate body height and stoplog door body height according to the temperature condition, realized the accurate control of temperature in the reservoir downstream water, improve reservoir and let off rivers temperature down, have important promotion effect to river water ecological environment protection.
6. According to the layered water taking system of the underwater floating flat gate, the first sliding piece is arranged on the stop log door body in the vertical direction, the second sliding piece is arranged on one side, facing the stop log door body, of the water blocking part, and the first sliding piece is in sliding fit with the second sliding piece. The flat gate body slides along the side wall of the base, and meanwhile, the flat gate body is in sliding fit with the stop log door body, slides up and down along the stop log door body, and is multi-directionally limited, so that the lifting stability of the flat gate body is improved. Make the bulkhead gate body and stop log door body sliding fit simultaneously for the manger plate portion of bulkhead gate body can be close to the butt with the stop log door body, avoids appearing great space between bulkhead gate body and the manger plate portion and leads to rivers directly to flow away, promotes the reliability that the water intaking system carries out layering water intaking control.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a layered water intake system of an underwater floating flat gate provided in an embodiment of the invention.
Fig. 2 is a schematic view of the matched installation of the stop log door body and the base side wall provided in the embodiment of the present invention.
Fig. 3 is a schematic structural view of a flat gate body according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a laminated door body provided in an embodiment of the present invention.
Fig. 5 is a schematic structural view illustrating the cooperative installation of the lifting device and the sidewall of the base according to the embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a lifting device provided in an embodiment of the present invention.
Fig. 7 is a schematic structural view of a base sidewall provided in an embodiment of the present invention.
Description of reference numerals: 1. a base sidewall; 2. a stop log door body; 3. a water retaining part; 4. a water blocking part; 5. a first slider; 6. a second slider; 7. a drive motor; 8. a lifting gear; 9. a spiral lifting wheel; 10. a lifting rack; 11. a threaded barrel; 12. a transmission gear; 13. a first drive lever; 14. an auxiliary gear; 15. an auxiliary transmission rod; 16. a second transmission rod; 17. a water temperature monitoring device; 18. blocking the floating row; 19. a water temperature and water level detecting device.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
As shown in fig. 1 to 7, the layered water intake system of the underwater floating plate gate provided in this embodiment is installed at a water intake of a reservoir, and includes: the gate structure comprises a pair of base side walls 1 arranged on two sides in a river channel, a stop log door body 2 arranged on the base side walls 1 in a sliding mode in the vertical direction, and a flat gate body arranged on the base side walls 1 in a sliding mode in the vertical direction. According to the geographical environment of the water intake of the reservoir, the side wall 1 of the base can be only arranged on one side of the river channel, and the other sides of the stop log door body 2 and the flat gate door body can be directly arranged on natural hard objects such as mountains.
The flat gate body is perpendicular to the base side wall 1, and the flat gate body is installed on the base side wall 1 along vertical direction slidable mounting, installs elevating gear between flat gate body and the base side wall 1, and the flat gate body includes water retaining part 3 and water blocking part 4 that mutually perpendicular set up, and water retaining part 3 is parallel with stoplog door body 2, and water blocking part 4 is located between water retaining part 3 and stoplog door body 2. The height of the flat gate body on the side wall 1 of the base is automatically controlled by using the lifting device. In order to facilitate the control of the water intake height, the flat gate body is installed downstream of the stop log door body 2. A sliding groove serving as a first sliding piece 5 is arranged on the stop log door body 2 in the vertical direction, a sliding block serving as a second sliding piece 6 is arranged on one side, facing the stop log door body 2, of the water blocking part 4, and the first sliding piece 5 is in sliding fit with the second sliding piece 6.
The lifting device comprises: the lifting mechanism comprises a driving motor 7, a lifting gear 8 and a spiral lifting wheel 9, wherein the lifting gear 8 and the spiral lifting wheel 9 are installed on an output shaft of the driving motor 7, a lifting rack 10 is arranged on a side wall 1 of a base, and the lifting gear 8 is meshed with the lifting rack 10. The base side wall 1 is also provided with a thread cylinder 11, and the spiral lifting wheel 9 is in thread fit with the thread cylinder 11. Specifically, a transmission gear 12 is directly mounted on an output shaft of the driving motor 7, a first transmission rod 13 is mounted on one side of the transmission gear 12, a first matching gear is arranged at one end of the first transmission rod 13, a second matching gear is arranged at the other end of the first transmission rod, the first matching gear is in meshing fit with the transmission gear 12, and the first matching gear is perpendicular to the transmission gear 12. An auxiliary gear 14 is coaxially arranged on the spiral lifting wheel 9, an auxiliary transmission rod 15 is further arranged between the auxiliary gear 14 and the first transmission rod 13, auxiliary matching gears are arranged at two ends of the auxiliary transmission rod 15, one of the auxiliary matching gears is in parallel meshed fit with the auxiliary gear 14, and the other auxiliary matching gear is in vertical meshed fit with the second matching gear. A second transmission rod 16 is also arranged on the transmission gear 12 in a meshing way, and one end of the second transmission rod 16 far away from the transmission gear 12 is matched with the lifting gear 8 in a meshing way. Specifically, one end of the second transmission rod 16 is provided with a third mating gear, the other end is provided with a fourth mating gear, the third mating gear is in parallel engagement with the transmission gear 12, and the fourth mating gear is in parallel engagement with the lifting gear 8.
The layering water intaking system still includes temperature monitoring devices 17, installs at stoplog door body 2 upper reaches and/or bulkhead gate body low reaches, and temperature monitoring devices 17 are all installed to stoplog door body 2 upper and lower reaches in this embodiment, are used for monitoring the water intaking temperature in layering water intaking system upper reaches and the rivers temperature in layering water intaking system low reaches respectively. A float blocking row 18 is arranged in the water body on the upstream of the stoplog door body 2, and a plurality of water temperature and water level detection devices 19 are arranged on the float blocking row 18 at intervals.
In the operation process of the layered water taking system, the water temperature and water level observation device of the layered water taking system can perform corresponding scheduling control on layered water taking of the water taking platform according to the operation water level conditions of different reservoir power stations and by combining the upper and lower water temperature and water level data, ensure that the water level of the reservoir is maintained in a water level interval controlled by the water taking platform to stably operate, the water level interval is a vertical water taking height controlled by the arc gate and the front water retaining device, and records and organizes the water level, the water temperature, the water inlet front water level, the water temperature, the power generation downstream tail water level and the water temperature in real time; and uploading the data subjected to the reorganization to a data processing center so that related personnel can adjust the running state of the reservoir power station in time.
The float interception row 18 is arranged at a position at least 300m away from a water inlet of the power station, and mainly intercepts garbage and floating objects of an upstream river to avoid adverse influence on the operation of the power station; meanwhile, a warning board is arranged at the upstream of the float blocking row 18, so that the float blocking row 18 and related devices are prevented from being damaged. The water temperature and water level detection device 19 is provided with a polyethylene rotational molding suspension ball, a water temperature and water level probe, a mounting chain and a tail end counterweight, the suspension ball is arranged on the float blocking row 18, the top end of the mounting chain is fixed on the suspension ball, and the tail end is suspended with the tail end counterweight; the water temperature and water level probes are arranged on the mounting chain according to the vertical water temperature condition, can be equidistantly arranged at intervals of 2-10 m, and can also be arranged according to the vertical water temperature distribution rule of the reservoir. The water temperature and water level probe has a remote online transmission function and can transmit monitoring data to a data center in real time. The water temperature measuring precision of the probe is 0.01 ℃, and the measuring range is-40-90 ℃; the water level measurement precision is 0.01m, the depth of a working water area can reach 200m, and the recording frequency of water temperature and water level data can be adjusted within the range of 1 min-5 h. The vertical change of the water temperature close to the surface layer of the reservoir is large, the water temperature layering distance is about 2-5 m, the vertical change of the water temperature close to the bottom of the reservoir is small, and the water temperature layer distribution distance is about 5-10 m. The dam front far-end water temperature and water level detection device 19 mainly monitors far-end water temperature and water level data; meanwhile, the downstream water temperature and water level detection device 19 is used for monitoring the water temperature and water level data of the tail water of the downstream power station.
The water temperature and water level detection device 19 is powered by a replaceable storage battery arranged in the floating ball, the floating ball has the characteristics of good sealing performance, impact and collision resistance, strong pressure resistance, corrosion resistance, ageing resistance and the like, and meanwhile, the diameter of the floating ball is determined according to the balance weight and the required buoyancy. The tail end balance weight of the mounting chain is generally a shot ball and the like, so that the whole water temperature and water level detection device 19 is ensured to be vertical, and the influence of the transverse water flow of the reservoir on the detection device is reduced. The mounting chains are all made of steel cables.
Install the temperature monitoring devices 17 in 2 upper reaches of stoplog door body and settle in 1 front end of water inlet base side wall for monitor vertical temperature of water inlet, water level data. A water temperature probe and an installation chain are arranged in the water temperature monitoring device 17, the side wall 1 of the base mainly prevents water flow at the water inlet from influencing the probe, the top end of the water temperature monitoring device 17 is higher than a check flood level, and the bottom end of the water temperature monitoring device 17 is lower than the water inlet by 2-5 m; similarly, the height of the top end of the dam tail water temperature monitoring device 17 at the downstream of the flat gate body is generally higher than the highest tail water level by 3-5 m, and the bottom end of the device is lower than the lowest tail water level by 2-4 m, so that the device can monitor the water temperature and water level data of the water inlet and the dam tail water under various working conditions.
When the water temperature and the water level are monitored, the water temperature and the water level of the upstream and the downstream of the reservoir hydropower station are monitored in real time through the water temperature and water level detection device 19 and the water temperature monitoring devices 17 at the upstream and the downstream, so that data support can be provided for a control center, the subsequent regulation and control of a water taking platform are facilitated, and further the water environment, the aquatic organisms and the water ecological system of the upstream and the downstream rivers are manually regulated and controlled and data support is provided.
After the reservoir stores water, various thermodynamic conditions can be changed, and the water temperature structure of the reservoir can be correspondingly changed. The yield of crops is directly influenced by the water temperature of irrigation and diversion. The rice is a warm and wet-like crop and is sensitive to the temperature of irrigation water. The rice grows at the most suitable temperature of about 23 ℃, and the yield of the rice is obviously influenced by over-high or over-low water temperature. Meanwhile, the water temperature of the reservoir has a heat source effect, so that the water temperature has profound influence on the diversity of river aquatic organism populations, and the composition of aquatic organism communities can be influenced. In a water body with layered water temperature, plankton is often layered and distributed, and the plankton in the surface water body of the reservoir is far more than that in a deep water layer. The fishes generally live in a water area of 15-30 ℃, and the water temperature exceeding the range can cause the fishes not to eat and slow the metabolism. The requirement of most fishes for spawning on water temperature is strict, when the water temperature does not reach the temperature required by spawning of the fishes, spawning sites disappear, the yield of the fishes is reduced, and the requirement on the water temperature of reservoir discharge is particularly important. Therefore, the water intake layer height of the water intake platform plays an important role in upstream and downstream river water environment, aquatic organisms and the like.
The layered water taking platform comprises the following specific steps:
when the reservoir water level begins to decline, according to the temperature, the water level data that monitoring devices monitored, the prediction monitoring water level will descend in the time of 12h in the future, lead to getting the water layer water intaking scope and surpass the control range of current plate gate body and stoplog door body 2, get the water height and be less than the control height of plate gate body and stoplog door body 2 promptly, the temperature water level detection device 19 and the temperature monitoring devices 17 of upper reaches send monitoring information to the data processing center in real time this moment, the suggestion relevant personnel take corresponding measure in advance. The height of the stacked beam door body 2 is adjusted through the hoist mounted at the top end of the base side wall 1, and the stacked beam door body 2 and the flat plate gate body are adjusted to the required height so as to ensure stable power generation of a hydropower station. The specific operation is as follows: the electric lifting gear 8 and the spiral lifting wheel 9 rotate simultaneously through the driving motor 7, so that the flat gate body is driven to descend to a required height, and the stop log gate body 2 is hoisted through a hoist at the top end of the base side wall 1, so that the surface layer water retaining gate on the water surface is the flat gate body; the distance from the top end of the general flat gate body to the water surface is kept at 1-2.5 m, the height of a water taking layer is determined according to monitoring data of a monitoring device and by combining the ecological water temperature condition required by river water in upstream and downstream, stable power generation of a hydropower station is guaranteed, and the bottom water is controlled to flow into downstream. And reading the water temperature and water level data of each monitoring device and uploading the data to a data processing center.
When the reservoir water level starts to rise, according to the water temperature and water level data monitored by the monitoring device, the monitoring water level is predicted to rise rapidly within 12h, the water taking range of the water taking layer is caused and exceeds the control range of the existing flat gate body and the existing stop log door body 2, and at the moment, the water temperature and water level detection device 19 and the water temperature monitoring device 17 send monitoring information to the data processing center in real time to prompt relevant personnel to take corresponding measures in advance. Install folding beam door body 2 through the headstock gear on 1 top of base side wall, install folding beam door body 2 to required high position, driving motor 7 drives spiral lifting wheel 9 simultaneously and rises at 11 internal rotations of screw thread section of thick bamboo, and driving motor 7 drives lifting gear 8 simultaneously and rises along the climbing of the lifting rack 10 on the fluted wall, promotes the plate sluice door body to required height, and then combines the height of folding beam door body 2 to control the height of layering water intaking. The specific lifting height of the stop log door body 2 and the flat plate gate body is determined according to the combination of upstream and downstream monitoring data and the water ecological requirements. And reading the water temperature and water level data of each monitoring device and uploading the data to a data processing center.
When the reservoir water level keeps a relatively stable state, according to the water temperature and water level data monitored by the monitoring device, the data center performs corresponding adjustment on the height of the water taking layer after analysis processing so as to meet the requirement of river water environment. At this moment, the height of the water taking layer is controlled mainly through the flat gate body, and the water taking layer is divided into the following conditions:
when the required water temperature of the downward drainage flow is far lower than the water temperature of the water taking layer, namely the adjustment height of the water temperature layer is larger than the heights of the flat gate body and the laminated beam door body 2, the operation mode when the water level of the reservoir begins to fall is adopted to adjust the laminated beam door body 2 and the flat gate body, so that the temperature of the water taking layer reaches the required requirement.
When the required temperature of the underdrain water flow is far higher than the water temperature of the water taking layer, namely the adjustment height of the water temperature layer is greater than the height of the flat gate body and the laminated beam gate body 2, the operation mode when the water level of the reservoir begins to rise is adopted to adjust the laminated beam gate body 2 and the flat gate body, the height of the water taking layer is increased, and then the temperature of the underdrain water flow is reduced to enable the underdrain water flow to meet the requirement.
When the water temperature required by the downward water flow is slightly larger or slightly smaller than the water taking layer, namely the adjustment height of the water temperature layer is slightly smaller or slightly larger than the height of the flat gate body, the driving motor 7 drives the flat gate body to slide along the side wall 1 of the base in the control range of the flat gate body, so that the flat gate body is lifted or lowered to the required height, and the height of layered water taking is further controlled to meet the water temperature requirement of the downward water flow.
The adjustment scheme under the above condition can accomplish accurate regulation and control to water intaking layer temperature. In addition, stop the back and adjust when the adjustment need not to stop rivers again with stop to stop the stoplog door body 2, realized stop the direct adjustment of door body 2 under the working condition of flowing water, shortened the operating time of 2 adjustments of stop log door body greatly, avoided the water transfer and the problem that there is the conflict with the electricity transfer. The regulation and control of the temperature of the discharged water flow can be greatly improved, and the stability of downstream water environment and water ecology can be better met.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The utility model provides an underwater floating plate gate layering water intaking system which characterized in that installs in reservoir water intaking department includes:
the base side wall (1) is arranged on at least one side of the water flow direction;
the laminated beam door body (2) is installed on the base side wall (1) in a sliding mode along the vertical direction;
the flat gate comprises a flat gate body, wherein the flat gate body is perpendicular to the base side wall (1), the flat gate body is slidably mounted on the base side wall (1) along the vertical direction, a lifting device is mounted between the flat gate body and the base side wall (1), the flat gate body comprises a water blocking part (3) and a water blocking part (4) which are perpendicular to each other, the water blocking part (3) is parallel to the laminated beam door body (2), and the water blocking part (4) is arranged between the water blocking part (3) and the laminated beam door body (2);
the flat gate body is arranged at the downstream of the stop log door body (2), and the water blocking part is abutted to the stop log door body;
when the reservoir water level begins to descend, the lifting device drives the flat gate body to descend to a required height along the side wall of the base, and then the stop log gate body is lifted, so that the surface layer water retaining gate of the water area surface is a flat gate body;
when the water level of the reservoir begins to rise, the stop log door body is installed to the position with the required height, the lifting device drives the flat gate body to be lifted to the required height along the side wall of the base, and the height of layered water taking is controlled by the aid of the integral height of the flat gate body combined with the stop log door body.
2. The underwater floating platform gate layered water intake system according to claim 1, wherein the lifting device includes: driving motor (7) and install driving motor (7) drive epaxial lifting gear (8), be provided with lifting rack (10) on base side wall (1), lifting gear (8) with lifting rack (10) meshing cooperation.
3. The underwater floating flat gate layered water taking system according to claim 2, wherein the lifting device further comprises a spiral lifting wheel (9), a threaded cylinder (11) is arranged on the base side wall (1), and the spiral lifting wheel (9) is in threaded fit with the threaded cylinder (11).
4. The underwater floating flat gate layered water taking system according to claim 3, wherein a transmission gear (12) is mounted on an output shaft of the driving motor (7), a first transmission rod (13) is mounted on the transmission gear (12) in a meshed mode, an auxiliary gear (14) is coaxially mounted on the spiral lifting wheel (9), and one end, far away from the transmission gear (12), of the first transmission rod (13) is in meshed fit with the auxiliary gear (14).
5. The underwater floating flat gate layered water taking system according to claim 4, wherein a second transmission rod (16) is further mounted on the transmission gear (12) in a meshed mode, and one end, away from the transmission gear (12), of the second transmission rod (16) is in meshed fit with the lifting gear (8).
6. The underwater floating flat-gate layered water intake system according to any one of claims 1 to 5, further comprising a water temperature monitoring device (17) installed upstream of the stoplog door body (2) and/or downstream of the flat-gate body.
7. The underwater floating flat gate stratified water intake system of any one of claims 1 to 5, further comprising a water temperature and level detecting device (19) installed in the body of water upstream of the stack gate body (2).
8. The underwater floating flat gate layered water taking system according to claim 7, wherein a floating block (18) is arranged in the water body upstream of the stoplog door body (2), and a plurality of water temperature and water level detection devices (19) are arranged on the floating block at intervals.
9. The underwater floating flat gate layered water intake system according to any one of claims 1 to 5, wherein a first sliding member (5) is vertically provided on the laminated beam door body (2), a second sliding member (6) is provided on a side of the water blocking portion (4) facing the laminated beam door body (2), and the first sliding member (5) is slidably engaged with the second sliding member (6).
10. The underwater floating flat gate layered water intake system according to any one of claims 1 to 5, characterized in that the flat gate body is installed downstream of the stoplog gate body (2).
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| CN202210795009.0A CN114855713B (en) | 2022-07-07 | 2022-07-07 | Layered water taking system of underwater floating type flat gate |
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| CN202210795009.0A CN114855713B (en) | 2022-07-07 | 2022-07-07 | Layered water taking system of underwater floating type flat gate |
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| CN114855713B true CN114855713B (en) | 2022-09-20 |
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| CN1966866A (en) * | 2005-11-14 | 2007-05-23 | 上海奇谋能源技术开发有限公司 | Multifunctional invisible movable dam for baffling salt tide |
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| CN207987883U (en) * | 2017-12-05 | 2018-10-19 | *** | A kind of Novel water conservancy gate |
| KR101934406B1 (en) * | 2018-02-13 | 2019-01-03 | 금전기업 주식회사 | Conducting movable beam of low water layer discharge structure |
| CN110565595A (en) * | 2019-10-23 | 2019-12-13 | 江苏省水利工程科技咨询股份有限公司 | Arc-shaped stoplog gate with layered water taking function and working method thereof |
| CN215289988U (en) * | 2020-11-11 | 2021-12-24 | 扬州恒昌机械有限公司 | Over-and-under type water sluicegate for hydraulic engineering |
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| CN1966866A (en) * | 2005-11-14 | 2007-05-23 | 上海奇谋能源技术开发有限公司 | Multifunctional invisible movable dam for baffling salt tide |
| CN103352448A (en) * | 2013-06-14 | 2013-10-16 | 山东省水利勘测设计院 | Layered water intake gate |
| CN207987883U (en) * | 2017-12-05 | 2018-10-19 | *** | A kind of Novel water conservancy gate |
| KR101934406B1 (en) * | 2018-02-13 | 2019-01-03 | 금전기업 주식회사 | Conducting movable beam of low water layer discharge structure |
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| CN114855713A (en) | 2022-08-05 |
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