CN108589659B - Trash rack capable of adjusting incoming flow direction - Google Patents
Trash rack capable of adjusting incoming flow direction Download PDFInfo
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- CN108589659B CN108589659B CN201810465681.7A CN201810465681A CN108589659B CN 108589659 B CN108589659 B CN 108589659B CN 201810465681 A CN201810465681 A CN 201810465681A CN 108589659 B CN108589659 B CN 108589659B
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- frame
- auxiliary
- shaft sleeve
- main
- screen frame
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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
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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
- 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)
- Sewage (AREA)
Abstract
The invention discloses a trash rack for adjusting the incoming flow direction.A rotating shaft seat and a central rotating shaft are uniformly arranged on a top plate and a bottom plate of a water inlet frame; and each water retaining blade and the net frame are independently driven to turn over. The invention can drive each water retaining blade to turn over synchronously by independent drive, and can achieve the diversion function of controlling the water flow direction. The independently driven net frame is coaxially arranged with each water retaining blade, and the effects of intercepting floaters, preventing aquatic plants, domestic garbage and other sundries from entering the interior of a pump station along with water flow and ensuring the safe operation of pump station engineering can be realized through the net frame.
Description
The technical field is as follows:
the invention belongs to the technical field of hydraulic engineering trash rack improvement, and particularly relates to a trash rack for adjusting an incoming flow direction.
Background art:
the hydraulic engineering is the foundation of national economy of China, and through field investigation on the upstream step irrigation engineering of the yellow river, the fact that silt is deposited to a certain degree in the pool before the pump station enters water is found. The forward front pool has a larger sediment accumulation range, mainly accumulates at the middle and rear parts of the two sides of the front pool, and even blocks a water suction pipe of a water pump; the lateral forehearth forms siltation at the outer side wall of the forehearth and at a position far away from the water inlet. In recent years, domestic and foreign scholars provide a large number of structure optimization measures such as a water pressing plate and a flow guide pier for the bad flow state in the forebay, but because the engineering draws water from the yellow river, the silt content is high, the sand washing effect is not obvious, and the flow guide facility is arranged in the forebay, the main flow direction cannot be changed, the silt still deposits in low-flow-velocity areas at two sides, and then the overflow space is occupied, and the water inlet flow state of the water pump is influenced.
The trash rack of the pump station forebay at present mainly has the functions of intercepting floating objects, weeds, domestic garbage and the like, preventing the floating objects, the weeds, the domestic garbage and the like from entering the pump station and damaging a hydraulic turbine unit, and has the advantages of single function and simple structure.
The invention content is as follows:
aiming at the defects and problems of the trash rack of the existing pump station forebay, the invention provides the trash rack for adjusting the incoming flow direction. The direction of water flow is changed by improving the direction of the trash rack, so that water flows in different directions can enter the unit at different positions more stably, the hydraulic loss is reduced, and the control of different interception degrees is realized by controlling the unfolding degree of the net frame.
The technical scheme adopted by the invention for solving the technical problems is as follows: a trash rack for adjusting the incoming flow direction comprises a water inlet frame fixed at the position of a water inlet channel and a plurality of parallel water retaining blades arranged in the water inlet frame, wherein rotating shaft seats are uniformly distributed on a top plate and a bottom plate of the water inlet frame, and central rotating shafts are vertically arranged in the rotating shaft seats which correspond to each other up and down; the center of each water retaining blade is provided with a main middle shaft sleeve, and the main middle shaft sleeve of each water retaining blade is sleeved on the corresponding central rotating shaft; meanwhile, a screen frame is arranged on each central rotating shaft in a matched manner, auxiliary middle shaft sleeves are respectively arranged at the upper end and the lower end of the center of the screen frame, the upper auxiliary middle shaft sleeve and the lower auxiliary middle shaft sleeve of each screen frame are respectively sleeved at the upper end and the lower end of the central rotating shaft, and the screen frame and the corresponding water retaining blade can be overlapped and unfolded; and a main board driving shaft and an auxiliary board driving shaft are respectively arranged on the upper sides of the edges of the water retaining blades and the upper sides of the edges of the screen frames, a main driving shaft sleeve and an auxiliary driving shaft sleeve are respectively sleeved on each main board driving shaft and each auxiliary driving shaft sleeve, all or part of the main driving shaft sleeves are connected into a whole through a main board driving connecting rod, all or part of the auxiliary driving shaft sleeves are connected into a whole through an auxiliary board driving connecting rod, the tail end of each main board driving connecting rod is connected with a telescopic rod of a main driving oil cylinder, the main driving oil cylinder is fixed on the side wall of the water inlet frame, the tail end of each auxiliary board driving connecting rod is connected with a telescopic rod.
The screen frame is equally divided into a left part and a right part by the auxiliary middle shaft sleeve at the center of the screen frame, and the left part and the right part of the screen frame are respectively welded with the auxiliary middle shaft sleeve in a tangent mode.
The screen frame is of an integral frame structure or a combined structure; the net frame of the combined structure comprises a fixed frame and a net frame, step surfaces are arranged on the periphery of the fixed frame to form an embedded groove, and the net frame is embedded into the embedded groove formed by the step surfaces and fixed through bolts.
The invention has the beneficial effects that: the invention can drive each water retaining blade to turn over synchronously by independent drive, thereby achieving the diversion function of controlling the water flow direction. The trash rack is improved, so that the blades are movable and rotatable within a certain range; therefore, the direction of the water flow can be changed, the water flows in different directions can enter the units at different positions more stably, and the hydraulic loss is reduced. Secondly, the independently driven net frame is coaxially arranged with each water retaining blade, and the net frame can achieve the effects of intercepting floating objects, preventing sundries such as waterweeds and household garbage from entering the interior of the pump station along with water flow and ensuring the safe operation of the pump station engineering.
Due to the existence of the screen frame, when the screen frame is prevented from being positioned between the adjacent water retaining blades, floating impurities positioned between the adjacent water retaining blades can be blocked. Therefore, the distance between the adjacent water retaining blades can be enlarged as much as possible, and the purpose of reducing the number of the water retaining blades is achieved. Namely, the function of intercepting the floating sundries is realized by the net frame instead of the water retaining blade.
The screen frame can be independently driven and turned, so that the opening degree of the screen frame can be controlled, and the interception degree can be controlled. And can change the water filtration aperture size through the screen frame to realize different degree interception effects, nevertheless current manger plate blade structure can't change the water filtration aperture, thereby can't realize the control of different interception degrees.
Description of the drawings:
fig. 1 is a development view showing a use state of the present invention.
Fig. 2 is a schematic view of a partial cross-sectional structure of the top view of fig. 1.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic view of the unfolded state of fig. 3.
Fig. 5 is a perspective view of fig. 3.
Fig. 6 is a schematic view showing a state in which the joined body of fig. 2 is unfolded.
Reference numbers in the figures: 1 is water inlet frame roof, 2 is the pivot seat, 3 is central pivot, 4 is the manger plate blade, 5 is main well axle sleeve, 6 is the screen frame, 7 is for assisting well axle sleeve, 8 is the mainboard drive shaft, 9 is for assisting the board drive shaft, 10 is mainboard drive connecting rod, 11 is for assisting board drive connecting rod, 12 is main drive cylinder, 13 is for assisting drive cylinder, 14 is water inlet frame lateral wall, 15 is main drive axle sleeve, 16 is for assisting the drive axle sleeve.
The specific implementation mode is as follows:
the invention is further illustrated with reference to the following figures and examples.
Example 1: the trash rack is one of important components of pump station engineering, is generally arranged at a water inlet of a front pool of a pump station at the tail end of a diversion canal, and plays roles of intercepting floating objects, preventing sundries such as aquatic plants and domestic garbage from entering the interior of the pump station along with water flow and ensuring safe operation of the pump station engineering. As shown in figure 1, the invention aims to design a trash rack which changes the incoming flow direction by adjusting grid bars, and adjusts different incoming flow directions by combining the starting combination of a water pump so as to increase the flow velocity of a low-flow-velocity area and achieve the purposes of flushing sand and reducing silt.
Referring to fig. 2-5, a water inlet frame at the position of a water inlet channel and a plurality of parallel water retaining blades 4 installed in the water inlet frame are shown, as shown in fig. 2, rotating shaft seats 2 are uniformly arranged on a top plate 1 and a bottom plate of the water inlet frame, and a central rotating shaft 3 is vertically installed in the vertically corresponding rotating shaft seats 2.
As shown in fig. 3, 4 and 5, a main middle shaft sleeve 5 is arranged at the center of each water blocking blade 4, and the main middle shaft sleeve 5 of each water blocking blade 4 is sleeved on the corresponding central rotating shaft 3. And meanwhile, a screen frame 6 is installed on each central rotating shaft 3 in a matched mode, an auxiliary middle shaft sleeve 7 is arranged at the upper end and the lower end of the center of each screen frame 6 respectively, the upper auxiliary middle shaft sleeve 7 and the lower auxiliary middle shaft sleeve 7 of each screen frame 6 are sleeved at the upper end and the lower end of each central rotating shaft 3 respectively, and the screen frames 6 and the corresponding water retaining blades 4 can be overlapped and unfolded.
And a main board driving shaft 8 and an auxiliary board driving shaft 9 are respectively arranged on the upper side of the edge of the water retaining blade 4 and the upper side of the edge of the screen frame 6, each main board driving shaft 8 and each auxiliary board driving shaft 9 are respectively sleeved with a main driving shaft sleeve 15 and an auxiliary driving shaft sleeve 16, all or part of the main driving shaft sleeves 15 are connected into a whole through a main board driving connecting rod 10, all or part of the auxiliary driving shaft sleeves 16 are connected into a whole through an auxiliary board driving connecting rod 11, the tail end of the main board driving connecting rod 10 is connected with an expansion link of a main driving oil cylinder 12, the main driving oil cylinder 12 is fixed on the side wall 14 of the water inlet frame, the tail end of the auxiliary board driving connecting rod 11 is connected with an expansion link of.
Thereby formed a composite construction's trash rack, each manger plate blade 4 is independently driven the upset respectively moreover, can be through independently driving each manger plate blade 4 synchronous upset action to, can reach the water conservancy diversion effect of control rivers direction. The trash rack is improved, so that the blades are movable and rotatable within a certain range; therefore, the direction of the water flow can be changed, the water flows in different directions can enter the units at different positions more stably, and the hydraulic loss is reduced.
The invention is provided with independently driven net frames 6 coaxially with each water retaining blade 4, and each net frame 6 can be independently driven and turned over. The net frame 6 can realize the functions of intercepting floating objects, preventing sundries such as waterweeds and domestic garbage from entering the pump station along with water flow and ensuring the safe operation of the pump station engineering. When the mesh frame 6 is prevented from being located at a position between the adjacent water blocking blades 4, floating impurities located between the adjacent water blocking blades 4 can be blocked. Therefore, the distance between the adjacent water retaining blades 4 can be enlarged as much as possible, and the purpose of reducing the number of the water retaining blades 4 is achieved. Namely, the function of the invention for intercepting the floating sundries is realized by the net frame 6 instead of the water retaining blade 4.
As can be seen from fig. 3 and 4, the screen frame 6 is equally divided into a left part and a right part by the auxiliary middle shaft sleeve 7 at the center of the screen frame, and the left part and the right part of the screen frame 6 are respectively welded with the auxiliary middle shaft sleeve 7 in a tangent mode.
Example 2: on the basis of the embodiment 1, the screen frame 6 is designed into a combined structure; the net frame 6 with the combined structure comprises a fixed frame and a net frame, step surfaces are arranged on the periphery of the fixed frame to form an embedded groove, and the net frame is embedded into the embedded groove formed by the step surfaces and fixed through bolts. The screen frame 6 can be independently driven and turned over, so that the opening degree of the screen frame 6 can be controlled, and the interception degree can be controlled. And can change the water filtration aperture size through the screen frame 6 to realize different degree interception effects, but current manger plate blade 4 structure can't change the water filtration aperture, thereby can't realize the control of different interception degrees.
Claims (3)
1. The utility model provides an adjust trash rack of incoming flow direction, is including fixing the water inlet frame in the water inlet passageway position and installing the manger plate blade of a plurality of parallels in the water inlet frame, characterized by: rotating shaft seats are uniformly distributed on the top plate and the bottom plate of the water inlet frame, and a central rotating shaft is vertically arranged in the rotating shaft seats which vertically correspond to each other; the center of each water retaining blade is provided with a main middle shaft sleeve, and the main middle shaft sleeve of each water retaining blade is sleeved on the corresponding central rotating shaft; meanwhile, a screen frame is arranged on each central rotating shaft in a matched manner, auxiliary middle shaft sleeves are respectively arranged at the upper end and the lower end of the center of the screen frame, the upper auxiliary middle shaft sleeve and the lower auxiliary middle shaft sleeve of each screen frame are respectively sleeved at the upper end and the lower end of the central rotating shaft, and the screen frame and the corresponding water retaining blade can be overlapped and unfolded; and a main board driving shaft and an auxiliary board driving shaft are respectively arranged on the upper sides of the edges of the water retaining blades and the upper sides of the edges of the screen frames, a main driving shaft sleeve and an auxiliary driving shaft sleeve are respectively sleeved on each main board driving shaft and each auxiliary driving shaft sleeve, all or part of the main driving shaft sleeves are connected into a whole through a main board driving connecting rod, all or part of the auxiliary driving shaft sleeves are connected into a whole through an auxiliary board driving connecting rod, the tail end of each main board driving connecting rod is connected with a telescopic rod of a main driving oil cylinder, the main driving oil cylinder is fixed on the side wall of the water inlet frame, the tail end of each auxiliary board driving connecting rod is connected with a telescopic rod.
2. The trash rack of claim 1, wherein: the screen frame is equally divided into a left part and a right part by the auxiliary middle shaft sleeve at the center of the screen frame, and the left part and the right part of the screen frame are respectively welded with the auxiliary middle shaft sleeve in a tangent mode.
3. The trash rack of claim 1, wherein: the screen frame is of an integral frame structure or a combined structure; the net frame of the combined structure comprises a fixed frame and a net frame, step surfaces are arranged on the periphery of the fixed frame to form an embedded groove, and the net frame is embedded into the embedded groove formed by the step surfaces and fixed through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465681.7A CN108589659B (en) | 2018-05-16 | 2018-05-16 | Trash rack capable of adjusting incoming flow direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465681.7A CN108589659B (en) | 2018-05-16 | 2018-05-16 | Trash rack capable of adjusting incoming flow direction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108589659A CN108589659A (en) | 2018-09-28 |
| CN108589659B true CN108589659B (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810465681.7A Active CN108589659B (en) | 2018-05-16 | 2018-05-16 | Trash rack capable of adjusting incoming flow direction |
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| CN (1) | CN108589659B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965531B (en) * | 2019-12-03 | 2021-04-23 | 华北水利水电大学 | Multi-layer guide rail type multifunctional composite trash rack |
| CN111771817B (en) * | 2020-08-07 | 2023-03-31 | 湖南富高农业科技开发有限公司 | Tadpole seedling collection device |
| CN115341516B (en) * | 2022-07-19 | 2023-03-21 | 中交一公局集团有限公司 | Dirt blocking structure convenient to clean for water taking pump station and cleaning method of dirt blocking structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02300408A (en) * | 1989-05-16 | 1990-12-12 | Mitsubishi Heavy Ind Ltd | Device for preventing flowing-in of jellyfish into inlet channel |
| CN200999340Y (en) * | 2007-01-05 | 2008-01-02 | 奕永庆 | Pumping station herringbone trash baffle |
| CN201362841Y (en) * | 2009-03-02 | 2009-12-16 | 张文 | Three-dimensional trash rack |
| CN102650124A (en) * | 2012-05-14 | 2012-08-29 | 扬州楚门机电设备制造有限公司 | Movable trash rack |
| CN205000302U (en) * | 2015-07-27 | 2016-01-27 | 苏州多固工程设计有限公司 | Pump station trash rack flashboard that blocks water |
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2018
- 2018-05-16 CN CN201810465681.7A patent/CN108589659B/en active Active
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| CN108589659A (en) | 2018-09-28 |
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