Trash rack of pumped storage power station

Abstract

The invention belongs to the technical field of trash racks, and particularly relates to a pumped storage power station trash rack which comprises a trash rack frame body, a through groove is formed in the trash rack frame body in a penetrating mode, a plurality of vertical grid plates are arranged in the through groove at intervals, and the top of each grid plate is fixedly connected with an inverted-T-shaped adjusting block. The inverted-T-shaped adjusting block is slidably connected with the top wall of the through groove through an adjusting assembly. According to the trash rack for the pumped storage power station, the density degree of the grids can be flexibly adjusted according to the actual interception requirement, and for dirt with the large size, the distance between the grid blocks can be increased, the water flow passing speed can be increased, and the interception resistance can be reduced; for small dirt, the distance between the grid blocks can be adjusted to be small, the intercepting effect is enhanced, dirt of various sizes is effectively prevented from entering a water channel of the pumped storage power station, meanwhile, the grid plates are convenient to disassemble, assemble and replace, the structure is simple, and durability is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of trash racks, and in particular relates to a trash rack for a pumped storage power station. Background Art

[0002] Chinese patent CN219862697U discloses a durable trash rack for a pumped-storage power station. The rack comprises a base with vertical grids arranged thereon, a retaining frame mounted on the outside of the base, and the retaining frame is driven up and down by a screw-nut mechanism on the base. The retaining frame is fixed with multiple sets of intercepting rods, which extend into the gaps between the grids. An auger is mounted on the retaining frame, either on the front or rear sides of the grids, or on the front or rear side. One end of the auger is driven by a second motor on the retaining frame, and the other end extends into a discharge pipe at the end of the retaining frame. This durable trash rack for a pumped-storage power station provides timely garbage removal and reduces garbage corrosion on the trash rack.

[0003] The above patent intercepts garbage by arranging multiple groups of grids and interception bars between the bases. Since the distances between the multiple groups of grids and the interception bars are fixed and cannot be adjusted, the trash rack's effect of blocking different types of garbage in the water is affected, and it is also inconvenient to maintain and replace a single grid. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present invention provides a trash rack for a pumped storage power station, which can flexibly adjust the density of the grid according to actual interception needs. At the same time, the grid plates are easy to disassemble and replace, have a simple structure, and are durable.

[0005] Specifically, the present invention provides the following technical solutions:

[0006] A trash rack for a pumped storage power station comprises a trash rack frame (1), a through slot (2) extending through the trash rack frame (1), a plurality of vertical grid plates (3) spaced apart in the through slot (2), an inverted T-shaped adjustment block (5) fixedly connected to the top of each grid plate (3), and the inverted T-shaped adjustment block (5) being slidably connected to the top wall of the through slot (2) via an adjustment assembly (6);

[0007] The adjustment assembly (6) comprises a slide plate (601) and a T-shaped slot (602), wherein the T-shaped slot (602) is arranged on the top wall of the through slot (2); the longitudinal block of the inverted T-shaped adjustment block (5) is slidably engaged in the longitudinal slot of the T-shaped slot (602) in the left-right direction; and the slide plate (601) is arranged transversely and is slidably engaged in the transverse slot of the T-shaped slot (602) in the front-back direction.

[0008] The top of each inverted T-shaped adjustment block (5) is fixedly connected to a connecting column (609); the bottom surface of the slide plate (601) is provided with a plurality of grooves (610), the grooves (610) are arranged symmetrically with respect to the center line of the slide plate (601), and the symmetrical grooves (610) extend obliquely in an "eight" shape; and one connecting column (609) is distributed in each groove (610).

[0009] The present invention adjusts the distance between the grid plates (3) by sliding the slide plate (601) forward and backward in the transverse groove of the T-shaped groove (602), thereby driving the inverted T-shaped adjustment block (5) in the longitudinal groove of the T-shaped groove (602) to slide left and right.

[0010] Preferably, a limiting groove (604) is provided on the inner wall of one side of the transverse groove of the T-shaped groove (602) in the left-right direction, and the slide plate (601) is fixedly connected to a limiting block (605) on the same side of the limiting groove (604), and the limiting block (605) is slidably fitted in the limiting groove (604) in the front-back direction;

[0011] The inner cavity of the limiting block (605) is threadedly connected to a first threaded rod (606) in the front-to-back direction, and the first threaded rod (606) is fixedly connected to the output end of the motor (603).

[0012] Preferably, a slide bar (607) is provided between the inner walls of both sides of the longitudinal groove of the T-shaped groove (602) in the left and right directions, and a through hole (608) is provided in the inner cavity of the longitudinal block of the inverted T-shaped adjustment block (5) for sliding engagement with the slide bar (607). By providing the slide bar, the present invention can further limit the inverted T-shaped adjustment block to slide only in the left and right directions, and can also maintain the stability of the inverted T-shaped adjustment block when the grid plate is disassembled.

[0013] Preferably, the distances between adjacent grooves (610) in the left and right directions are the same;

[0014] The distances between adjacent grid plates (3) in the left and right directions are the same.

[0015] Preferably, baffles (4) are respectively installed on the left and right outermost grid plates (3), and the baffles (4) pass through the side walls of the through slot (2) and are slidably connected thereto. The present invention blocks the gaps between the side walls of the through slot and the outermost grid plates by arranging the baffles, so that water flows only between the multiple groups of grid plates when passing through.

[0016] Preferably, it further comprises a disassembly assembly (7), wherein the disassembly assembly (7) comprises a limit bar (701), a slide groove (702), and a fixing groove (703);

[0017] The slide groove (702) is provided at the bottom of the through groove (2), and the limit bar (701) is slidably fitted in the slide groove (702) in the up and down directions. A fixing groove (703) matching the limit bar (701) is provided at the bottom of each grid plate (3).

[0018] Further preferably, the disassembly assembly (7) further includes a movable groove (704), a second threaded rod (705), and a bevel block (706);

[0019] The movable groove (704) is opened on the side wall of the sliding groove (702), and the bevel block (706) is slidably fitted in the movable groove (704) in the front-back direction, and the end of the bevel block (706) close to the sliding groove (702) is a bevel, and the end away from the sliding groove (702) is threadedly connected to the second threaded rod (705), and the second threaded rod (705) passes through the side wall of the movable groove (704) to the outside.

[0020] By rotating the second threaded rod (705), the bevel of the bevel block (706) moves forward and backward, cooperating with the limit bar (701), driving the limit bar (701) to move up and down, thereby inserting or inserting out of the fixing groove (703).

[0021] Further preferably, the disassembly assembly (7) further includes a mounting groove (707), a fixing bolt (708) and a threaded groove (709);

[0022] The mounting groove (707) is provided at the bottom of the inverted T-shaped adjusting block (5) and matches the top size of the grid plate (3); the fixing bolt (708) is provided on the side wall of the mounting groove (707); the threaded groove (709) is provided on the top side of the grid plate (3) and is threadedly matched with the fixing bolt (708).

[0023] The beneficial effects achieved by the present invention are:

[0024] (1) The trash rack for a pumped-storage power station provided by the present invention, by providing a plurality of grid plates with adjustable positions, can flexibly adjust the density of the grid according to actual interception requirements, thereby improving the adaptability of the trash rack to different working conditions. For larger volumes of waste, the grid block spacing can be increased to increase the water flow rate and reduce interception resistance; for smaller waste, the grid block spacing can be reduced to enhance the interception effect, effectively preventing waste of various sizes from entering the waterway of the pumped-storage power station;

[0025] (2) The trash rack of a pumped storage power station provided by the present invention has a specific disassembly and assembly component provided between the grid plate, the bottom of the through groove, and the inverted T-shaped adjustment block. When the grid plate is damaged or needs to be cleaned, the staff can quickly replace or maintain it;

[0026] (3) The trash rack of a pumped storage power station provided by the present invention can further limit the inverted T-shaped adjustment block to slide only in the left and right directions by providing a sliding rod, and can also keep the inverted T-shaped adjustment block stable when the grid plate is disassembled;

[0027] (4) The trash rack of a pumped storage power station provided by the present invention has a simple structure and is durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the overall structure of a trash rack for a pumped storage power station provided by an embodiment of the present invention;

[0029] Figure 2 An overall side sectional view of a trash rack for a pumped storage power station provided by an embodiment of the present invention;

[0030] Figure 3 An overall top cross-sectional view of a trash rack for a pumped-storage power station provided by an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of a portion of the structure of an adjustment assembly in a trash rack of a pumped storage power station provided by an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of a portion of the structure of the disassembly and assembly components of a trash rack in a pumped storage power station provided by an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of a portion of the structure of the disassembly and assembly components of a trash rack in a pumped storage power station provided by an embodiment of the present invention;

[0034] Figure 7 A schematic longitudinal section diagram of a trash rack of a pumped storage power station provided by an embodiment of the present invention;

[0035] Figure 8 A cross-sectional view of a T-slot of an adjustment assembly in a trash rack of a pumped storage power station provided by an embodiment of the present invention;

[0036] Markings in the figure: 1. Trash rack frame; 2. Through slot; 3. Grid plate; 4. Baffle; 5. T-shaped adjustment block; 6. Adjustment assembly; 601. Slide plate; 602. T-shaped slot; 603. Servo motor; 604. Limiting slot; 605. Limiting block; 606. First threaded rod; 607. Sliding rod; 608. Through hole; 609. Connecting column; 610. Groove; 7. Disassembly and assembly assembly; 701. Limiting bar; 702. Sliding slot; 703. Fixed slot; 704. Moving slot; 705. Second threaded rod; 706. Bevel block; 707. Mounting slot; 708. Fixing bolt; 709. Threaded slot. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the field or the product instructions shall be followed.

[0038] It should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0039] Example 1

[0040] For reference Figure 1-8 A durable trash rack for a pumped storage power station comprises: a trash rack frame 1, a through slot 2 extending through the trash rack frame 1, a plurality of vertical grid plates 3 spaced apart in the through slot 2, wherein baffles 4 are mounted on the left and right outermost grid plates 3 and are slidably engaged with the side walls of the trash rack frame 1; an inverted T-shaped adjusting block 5 is connected to the top of each grid plate 3, and the inverted T-shaped adjusting block 5 is slidably connected to the top wall of the through slot 2 via an adjusting assembly (6);

[0041] The adjustment assembly 6 includes a slide plate 601 and a T-shaped slot 602. The T-shaped slot 602 is provided on the top wall of the through slot 2 and includes a longitudinal slot and a transverse slot from bottom to top. The longitudinal block of the inverted T-shaped adjustment block 5 slides in the longitudinal slot of the T-shaped slot 602 in the left-right direction. The slide plate 601 is provided in the transverse direction and slides in the transverse slot of the T-shaped slot 602 in the front-back direction.

[0042] A connecting post 609 is fixedly connected to the top of each inverted T-shaped adjustment block 5; a plurality of grooves 610 are formed on the bottom surface of the slide plate 601. The grooves 610 are arranged symmetrically with respect to the center line of the slide plate 601 in the left and right directions, and the symmetrical grooves 610 extend obliquely in an "eight" shape in the front and rear directions; a connecting post 609 is distributed in each groove 610;

[0043] A limiting groove 604 is provided on one inner wall of the transverse groove of the T-shaped groove 602 in the left-right direction. The slide plate 601 is fixedly connected to a limiting block 605 on the same side of the limiting groove 604. The limiting block 605 slides in the limiting groove 604 in the front-to-back direction. A first threaded rod 606 is threadedly connected to the inner cavity of the limiting block 605 in the front-to-back direction. The first threaded rod 606 is fixedly connected to the output end of the servo motor 603.

[0044] A slide bar 607 is provided between the inner walls of the longitudinal groove of the T-shaped groove 602 in the left and right directions, and a through hole 608 is provided in the inner cavity of the longitudinal block of the inverted T-shaped adjustment block 5 to slide with the slide bar 607;

[0045] The distances between adjacent grooves 610 in the left-right direction are the same; the distances between adjacent grid plates 3 in the left-right direction are the same.

[0046] Implementation process: When the position of the grid plate 3 needs to be adjusted, the servo motor 603 is started. The output shaft of the servo motor 603 drives the first threaded rod 606 to rotate. Since the limit block 605 is threadedly engaged with the first threaded rod 606, and the limit block 605 slides in the limit groove 604, the limit groove 604 guides the limit block 605, so that it can only move along the direction of the limit groove 604. As the first threaded rod 606 rotates, the limit block 605 drives the slide 601 to slide in the transverse groove of the T-slot 602, and the groove 610 at the bottom of the slide 601 cooperates with the connecting column 609. When the slide 601 slides, it pushes the connecting column 609, thereby driving the inverted T-shaped adjustment block 5 to slide along the longitudinal groove of the T-slot 602. Since the inverted T-shaped adjustment block 5 is connected to the grid plate 3, the grid plate 3 slides in the through groove 2, thereby realizing the adjustment of the position of the grid plate 3. The spacing of the grid plates 3 can be flexibly adjusted according to the size of the debris in the actual water flow to meet the needs of intercepting dirt of different sizes, thereby improving the adaptability of the trash rack to different working conditions.

[0047] Furthermore, a disassembly assembly 7 is provided between the grid plate 3, the bottom of the through slot 2, and the inverted T-shaped adjustment block 5. The disassembly assembly 7 includes a limit bar 701, a slide groove 702, and a fixed groove 703. The slide groove 702 is provided at the bottom of the through slot 2, and the limit bar 701 is slidably fitted in the slide groove 702 in the up and down directions. A fixed groove 703 is provided at the bottom of each grid plate 3 to cooperate with the limit bar 701.

[0048] The disassembly assembly 7 further includes a movable groove 704, a second threaded rod 705, and a bevel block 706; the movable groove 704 is provided on the side wall of the slide groove 702, and the bevel block 706 is slidably fitted in the movable groove 704 in the front-to-back direction, and the bevel block 706 has a beveled edge at one end close to the slide groove 702, and the second threaded rod 705 is threadedly connected to the end away from the slide groove 702, and the second threaded rod 705 passes through the side wall of the movable groove 704 to the outside;

[0049] The disassembly and assembly component 7 also includes a mounting groove 707, a fixing bolt 708 and a threaded groove 709; the mounting groove 707 is opened at the bottom of the inverted T-shaped adjustment block 5 and matches the top size of the grid plate 3, the fixing bolt 708 is arranged on the side wall of the mounting groove 707, and the threaded groove 709 is opened on the top side of the grid plate 3 and is threadedly matched with the fixing bolt 708.

[0050] Implementation process: When disassembling the grid plate 3, first rotate the second threaded rod 705. The second threaded rod 705 is threadedly engaged with the bevel block 706, and the bevel block 706 slides in the movable groove 704. As the second threaded rod 705 rotates, the bevel block 706 slides along the movable groove 704, and its bevel separates from the limit bar 701. At this time, the limit bar 701 loses the support of the bevel block 706 and moves downward under its own gravity or external force, disengaging from the fixed groove 703 at the bottom of the grid plate 3. Next, unscrew the fixing bolt 708 from the threaded groove 709, and then remove the top of the grid plate 3 from the mounting groove 707 at the bottom of the inverted T-shaped adjustment block 5. At the same time, the bottom of the grid plate 3 is separated from the bottom of the through groove 2, completing the disassembly of the grid plate 3.

[0051] When installing the grid plate 3, first align the bottom of the grid plate 3 with the bottom of the through slot 2. Next, rotate the second threaded rod 705 so that the beveled edge of the beveled block 706 contacts the limit bar 701, driving the limit bar 701 upward, so that the limit bar 701 enters the fixing groove 703 at the bottom of the grid plate 3. Finally, place the top of the grid plate 3 into the installation groove 707 at the bottom of the inverted T-shaped adjustment block 5, and use the fixing bolt 708 to engage the threaded groove 709 on the side of the grid plate 3 to fix the grid plate 3 to the inverted T-shaped adjustment block 5, completing the installation of the grid plate 3. The design of the disassembly and assembly component 7 makes the disassembly and installation of the grid plate 3 very convenient. When the grid plate 3 needs to be cleaned, replaced, or repaired, there is no need to disassemble the entire trash rack on a large scale; the grid plate 3 can be removed or replaced with a simple operation.

[0052] Although the present invention has been described in detail above using general explanations, specific embodiments, and experiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the present invention. Therefore, such modifications and improvements, which do not depart from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A trash rack for a pumped storage power station, characterized in that: The trash rack frame (1) comprises a through slot (2) extending through the trash rack frame (1), a plurality of vertical grid plates (3) spaced apart in the through slot (2), an inverted T-shaped adjustment block (5) fixedly connected to the top of each grid plate (3), and the inverted T-shaped adjustment block (5) is slidably connected to the top wall of the through slot (2) via an adjustment assembly (6); The adjustment assembly (6) comprises a slide plate (601) and a T-shaped slot (602), wherein the T-shaped slot (602) is arranged on the top wall of the through slot (2); the longitudinal block of the inverted T-shaped adjustment block (5) is slidably engaged in the longitudinal slot of the T-shaped slot (602) in the left-right direction; and the slide plate (601) is arranged transversely and is slidably engaged in the transverse slot of the T-shaped slot (602) in the front-back direction. The top of each inverted T-shaped adjustment block (5) is fixedly connected to a connecting column (609); the bottom surface of the slide plate (601) is provided with a plurality of grooves (610), the grooves (610) are arranged symmetrically with respect to the center line of the slide plate (601), and the symmetrical grooves (610) extend obliquely in an "eight" shape; and one connecting column (609) is distributed in each groove (610).

2. The trash rack of a pumped storage power station according to claim 1, characterized in that: A limiting groove (604) is provided on one inner wall of the transverse groove of the T-shaped groove (602) in the left-right direction. The slide plate (601) is fixedly connected to a limiting block (605) on the same side of the limiting groove (604). The limiting block (605) is slidably engaged in the limiting groove (604) in the front-back direction. The inner cavity of the limiting block (605) is threadedly connected to a first threaded rod (606) in the front-to-back direction, and the first threaded rod (606) is fixedly connected to the output end of the motor (603).

3. A trash rack for a pumped storage power station according to claim 1 or 2, characterized in that: A slide bar (607) is provided between the inner walls of both sides of the longitudinal groove of the T-shaped groove (602) in the left and right directions, and a through hole (608) is provided in the inner cavity of the longitudinal block of the inverted T-shaped adjustment block (5) for sliding engagement with the slide bar (607).

4. A trash rack for a pumped storage power station according to claim 1 or 2, characterized in that: The distances between adjacent grooves (610) in the left and right directions are the same; The distances between adjacent grid plates (3) in the left and right directions are the same.

5. A trash rack for a pumped storage power station according to claim 1 or 2, characterized in that: Baffles (4) are respectively installed on the left and right outermost grid plates (3), and the baffles (4) pass through the side walls of the through slot (2) and are slidably connected thereto.

6. A trash rack for a pumped storage power station according to claim 1 or 2, characterized in that: It also includes a disassembly assembly (7), wherein the disassembly assembly (7) includes a limit bar (701), a slide groove (702), and a fixing groove (703); The slide groove (702) is provided on the bottom wall of the through groove (2), and the limit bar (701) is slidably fitted in the slide groove (702) in the up and down directions. A fixing groove (703) matching with the limit bar (701) is provided at the bottom of each grid plate (3).

7. The trash rack of a pumped storage power station according to claim 6, characterized in that: The disassembly assembly (7) further includes a movable groove (704), a second threaded rod (705), and a bevel block (706); The movable groove (704) is opened on the side wall of the sliding groove (702), and the bevel block (706) is slidably fitted in the movable groove (704) in the front-back direction, and the end of the bevel block (706) close to the sliding groove (702) is a bevel, and the end away from the sliding groove (702) is threadedly connected to the second threaded rod (705), and the second threaded rod (705) passes through the side wall of the movable groove (704) to the outside.

8. The trash rack of a pumped storage power station according to claim 6, characterized in that: The disassembly assembly (7) further includes a mounting groove (707), a fixing bolt (708) and a threaded groove (709); The mounting groove (707) is provided at the bottom of the inverted T-shaped adjusting block (5) and matches the top size of the grid plate (3); the fixing bolt (708) is provided on the side wall of the mounting groove (707); the threaded groove (709) is provided on the top side of the grid plate (3) and is threadedly matched with the fixing bolt (708).

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