A kind of water power station's stoplog system

Abstract

This invention discloses a stacked beam gate system for hydropower stations, belonging to the field of water conservancy and hydropower engineering technology. It solves the problems of long maintenance operation time, low efficiency, and numerous hazardous factors associated with traditional stacked beam gate systems. The system includes: a gate slot located at the water intake of the dam, with a stacked beam gate on its upstream side, the stacked beam gate consisting of multiple stacked smaller gates; a locking module located on the bottom surface of the upstream side of the gate slot, extendable and retractable along a direction perpendicular to the sidewalls of the smaller gates, used to lock the position of each smaller gate; a support module located on the downstream side of the gate slot, extendable and retractable along a direction perpendicular to the downstream side of the gate slot, used to support all the smaller gates on the upstream side within the gate slot; and a lifting module connected to the smaller gate to be inspected, used to lift the smaller gate to be inspected out of the gate slot after it has been released from locking and support and moved to the downstream side of the gate slot. This invention is used for the maintenance of stacked beam gates.

Description

Technical Field

[0001] This invention relates to a stacked beam gate system for a hydropower station, belonging to the field of water conservancy and hydropower engineering technology. Background Technology

[0002] For hydropower stations with high-head intake structures, the high intake head leads to lower downstream water temperatures, which is detrimental to the reproduction of fish and other organisms in the river and does not meet the requirements for water environmental protection. Therefore, specialized water-blocking gates are installed at the intake of the hydropower station in layers. These gates consist of multiple independent small gates connected and stacked together to control the downstream water temperature in the reservoir area at the intake, ensuring that the downstream water temperature is suitable for the reproduction of fish and other organisms.

[0003] Because the stacked beam gate is composed of multiple independent stacked beam gates, this presents a problem for maintenance: if a problem occurs in one of the stacked beam gates and needs maintenance, the top stacked beam gate needs to be lifted out of the dam surface using a gantry crane on the dam top in conjunction with a beam grabber, and then the stacked beam gate is stored in the downstream storage slot using a lateral trolley of the gantry crane on the dam top; the above actions are repeated to store the next layer of stacked beam gates in the downstream storage slots segment by segment until the stacked beam gate that needs maintenance is retrieved.

[0004] Therefore, traditional stacked beam gate systems have the following main drawbacks: The downstream requires more gate storage slots, increasing the length of the intake dam face along the water flow direction. Because the stacked beam gates need to exit the dam crest and move laterally to the downstream gate storage slots, the dam crest gantry crane has a high lifting head and needs to be a bidirectional crane with corresponding lateral trolleys, increasing investment in the dam crest gantry crane. Furthermore, each stacked beam gate section needs to be lifted, transferred, and then stored in the gate storage slot, resulting in long operation times, low efficiency, and numerous safety hazards. Summary of the Invention

[0005] This invention provides a stacked beam gate system for hydropower stations, which can solve the problems of long maintenance and operation time, low efficiency and many dangerous factors in traditional stacked beam gate systems.

[0006] This invention provides a stacked beam gate system for a hydropower station, the system comprising:

[0007] The gate slot is located at the water intake of the dam body, and a stacked beam gate is installed on the upstream side inside it. The stacked beam gate is composed of multiple stacked beam gates.

[0008] A locking module is disposed on the bottom surface of the upstream side of the door slot and is retractable in a direction perpendicular to the side wall of the stacked beam small door, for locking the position of each stacked beam small door.

[0009] A support module is disposed on the downstream surface of the door slot and is retractable in a direction perpendicular to the downstream surface of the door slot, for supporting all stacked beam small doors on the upstream side within the door slot;

[0010] A lifting module is installed at the top of the door slot and connected to the stacked beam door to be inspected. It is used to lift the stacked beam door to be inspected out of the door slot after the door to be inspected is unlocked and supported and moved to the downstream side of the door slot.

[0011] Optionally, the system further includes:

[0012] Track grooves are respectively set on the two opposite bottom surfaces of the door groove along the height direction; multiple transverse trajectory lines are set in the track grooves, and the transverse trajectory lines correspond one-to-one with the stacked beam small door. The stacked beam small door can move to the downstream side of the door groove along the corresponding transverse trajectory line.

[0013] Optionally, the track groove is further provided with vertical trajectory lines, which are arranged alternately with the horizontal trajectory lines.

[0014] Optionally, the support module includes:

[0015] Multiple support tops are respectively disposed on the downstream surface of the door slot at opposite ends of each stacked beam door; along a direction perpendicular to the downstream surface of the door slot, the support tops can extend from or retract from the inner side of the downstream surface of the door slot to the inner side of the downstream surface of the door slot; the support tops are used to support the corresponding stacked beam door on the upstream side of the door slot.

[0016] Optionally, the support top is connected to the corresponding stacked beam small door, and the support top is also used to pull the stacked beam small door to be repaired along the corresponding transverse trajectory line to the downstream side of the door slot when the corresponding stacked beam small door needs to be repaired.

[0017] Optionally, each stacked beam door corresponds to four support tops, and the four support tops are respectively located at the four corners of the stacked beam door.

[0018] Optionally, the locking module includes:

[0019] Multiple locking elements are respectively disposed on opposite side walls of each stacked beam door; along a direction perpendicular to the side wall of the stacked beam door, the locking elements can extend from or retract into the side wall of the stacked beam door;

[0020] Each of the stacked beam doors has a slot on the bottom surface of the door groove corresponding to its opposite side walls; the locking member is used to engage with the corresponding slot when extended to lock the stacked beam door.

[0021] Optionally, the width of the door groove is greater than twice the thickness of the stacked beam door.

[0022] Optionally, the system further includes:

[0023] The control module is connected to the locking module, the support module, and the lifting module, and is used to control the operation of the locking module, the support module, and the lifting module.

[0024] Optionally, the locking element is a steel structure.

[0025] The beneficial effects that this invention can produce include:

[0026] The hydropower station gate system provided by this invention utilizes a locking module and a support module to confine all stacked beam gates to the upstream side of the gate slot. After the locking and support are released, the stacked beam gate to be inspected moves to the downstream side of the gate slot under hydraulic impact and is then lifted out of the slot using a lifting module. This invention features a simple structure and convenient operation, ensuring free maintenance of the stacked beam gates, avoiding the need for lifting equipment to hoist each gate individually, saving labor, reducing operational difficulty, and eliminating the need for a dedicated gate storage facility. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the cross-sectional structure of the stacked beam door system under maintenance conditions provided in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the stacked beam gate system in the water-blocking state provided in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the longitudinal section structure of the stacked beam door system under maintenance provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the longitudinal section structure of the stacked beam door system after maintenance, provided in an embodiment of the present invention.

[0031] Figure 5 for Figure 3 A schematic diagram of a partial structure of the door slot in area A;

[0032] Figure 6 This is a partial structural diagram of the stacked beam door system under maintenance, provided in an embodiment of the present invention.

[0033] Figure label:

[0034] 1. Doorway; 2. Stacked beam door; 3. Stacked beam small door; 4. Track groove; 5. Horizontal track line; 6. Vertical track line; 7. Support top; 8. Locking element; 9. Emergency stop. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the embodiments, but the present invention is not limited to these embodiments.

[0036] This invention provides a stacked beam gate system for a hydropower station, such as... Figures 1 to 6 As shown, the system includes:

[0037] Gate slot 1 is located at the water intake of the dam body, and a stacked beam gate 2 is installed on its upstream side. The stacked beam gate 2 is composed of multiple stacked small beam gates 3. The width of gate slot 1 is more than twice the thickness of stacked beam gate 2.

[0038] In practical applications, the stacked beam door 2 is composed of multiple independent stacked beam small doors 3 stacked together along the height direction of the door groove 1; located within a door groove 1 of a certain width, the width of the door groove 1 is greater than twice the thickness of the stacked beam door 2, which allows the stacked beam door 2 to be moved in the upstream and downstream directions.

[0039] The locking module is located on the bottom surface of the upstream side of the door slot 1 and is retractable in a direction perpendicular to the side wall of the stacked beam small door 3. It is used to lock the position of each stacked beam small door 3.

[0040] Specifically, the locking module includes:

[0041] Multiple locking elements 8 are respectively installed on the opposite side walls of each stacked beam door 3; along the direction perpendicular to the side wall of the stacked beam door 3, the locking elements 8 can extend from or retract into the side wall of the stacked beam door 3; wherein, the locking elements 8 are generally steel structures.

[0042] Each of the two opposite side walls of the stacked beam door 3 is provided with a slot on the bottom surface of the corresponding door groove 1; the locking member 8 is used to engage with the corresponding slot when extended to lock the stacked beam door 3.

[0043] refer to Figure 1 and Figure 2 As shown, the X direction is the direction of incoming water, and the bottom surface of the upstream side of the gate slot 1 is the surface area inside the gate slot 1 that is parallel to the X direction and close to the upstream side.

[0044] In this embodiment of the invention, locking members 8 are evenly arranged along the height direction of the stacked beam door 3, located on both sides of the stacked beam door 3. One end of the locking member 8 is fixed in the side wall of the stacked beam door 3, and the other end is inserted into the concrete on the side of the door groove 1. The shape of the extendable end of the locking member 8 can be arc-shaped or other shapes, and the invention does not limit this. During normal water blocking, the locking member 8 extends into the concrete on the side of the door groove 1, providing a certain locking force; during maintenance, the locking member 8 can be retracted into the stacked beam door 3.

[0045] The support module is located on the downstream surface of the door slot 1 and is retractable in a direction perpendicular to the downstream surface of the door slot 1. It is used to support all the stacked beam small doors 3 on the upstream side inside the door slot 1.

[0046] The supporting modules include:

[0047] Multiple support tops 7 are respectively disposed on the downstream surface of the door groove 1 at both ends of each stacked beam door 3; along the direction perpendicular to the downstream surface of the door groove 1, the support tops 7 can extend from or retract from the inner side of the downstream surface of the door groove 1 to the inner side of the downstream surface of the door groove 1; the support tops 7 are used to support the corresponding stacked beam door 3 on the upstream side of the door groove 1.

[0048] The downstream surface of the aforementioned door groove 1 is the surface inside the door groove 1 that is perpendicular to the X direction and located on the downstream side.

[0049] In this embodiment of the invention, the support top 7 is located on the downstream surface of the door slots 1 on both sides of each stacked beam door 3. It is a retractable steel structure. One end of the support top 7 is fixed in a reserved concrete pit on the downstream surface of the door slot 1, and the other end abuts against the downstream surface of the stacked beam door 3. The support top 7 is arranged at the top and bottom along the height direction of each stacked beam door 3. Each stacked beam door 3 corresponds to four support tops 7, which are respectively set at the four corners of the stacked beam door 3. During normal water blocking, the support top 7 extends out of the concrete pit to provide a certain supporting force to the stacked beam door 2; during maintenance, the support top 7 retracts into the concrete pit.

[0050] The lifting module is set at the top of the door slot 1 and connected to the stacked beam door 3 to be inspected. It is used to lift the stacked beam door 3 to be inspected out of the door slot 1 after the door is unlocked and supported and moved to the downstream side of the door slot 1.

[0051] Furthermore, the system also includes:

[0052] Track grooves 4 are respectively set on the two opposite bottom surfaces of door groove 1 along the height direction of door groove 1; multiple horizontal track lines 5 are set in track grooves 4, and the horizontal track lines 5 correspond one-to-one with the stacked beam small doors 3, which can move to the downstream side of door groove 1 along the corresponding horizontal track lines 5. Vertical track lines 6 are also set in track grooves 4, and the vertical track lines 6 are arranged alternately with the horizontal track lines 5.

[0053] The track groove 4 is arranged on both sides of the left and right door groove 1 along the height direction of the door groove 1. The track groove 4 is provided with predetermined horizontal and vertical crisscrossing trajectory lines. The trajectory lines can provide guidance and also increase the friction force when the stacked beam small door 3 falls under its own weight.

[0054] Preferably, the support top 7 is connected to the corresponding stacked beam small door 3. The support top 7 is also used to pull the stacked beam small door 3 to be repaired along the corresponding transverse trajectory line 5 to the downstream side of the door slot 1 by retracting when the corresponding stacked beam small door 3 needs to be repaired.

[0055] Furthermore, the system also includes:

[0056] The control module is connected to the locking module, support module, and lifting module, and is used to control the operation of the locking module, support module, and lifting module.

[0057] This invention can connect the support top 7 of the support module, the locking element 8 of the locking module, and the lifting module to form an automatic control system through control lines, and all of them can form a remote control system with an external computer.

[0058] In practice, the maintenance method for the above-mentioned stacked beam door 2 system is as follows:

[0059] 1) Lower the upstream emergency gate 9 to block water and prepare for the repair of the stacked beam gate 3.

[0060] 2) Through remote computer control, the locking element 8 and support top 7 of the stacked beam gate 3 to be inspected are activated. The retractable end of the locking element 8 retracts into the stacked beam gate 3, and the retractable end of the support top 7 retracts into the concrete gate groove 1. At the same time, the stacked beam gate 3 to be inspected automatically moves downstream along the preset transverse trajectory line 5 of the track groove 4 under the action of water.

[0061] 3) Through remote computer control, the locking mechanism 8 and support top 7 of the upper layer of the stacked beam gate 3 to be inspected are activated layer by layer from bottom to top. The retractable end of the locking mechanism 8 retracts into the stacked beam gate 3, and the retractable end of the support top 7 retracts into the concrete door groove 1. At the same time, under its own weight, the stacked beam gates 3 automatically slide downwards along the preset vertical trajectory line 6 of the track groove 4, and are re-stacked in sequence, as detailed below. Figure 3 As shown.

[0062] 4) Lift out the small door 3 of the stacked beam that needs to be inspected for inspection.

[0063] 5) After the maintenance is completed, the repaired stacked beam small door 3 is hoisted back into the top layer position along the preset vertical trajectory line 6 of the track groove 4, as follows: Figure 4 As shown.

[0064] 6) By remote computer control, the locking part 8 and the support top 7 of the moved stacked beam small door 3 are closed, the retractable end of the locking part 8 is re-entered into the concrete, and the retractable end of the support top 7 is re-extended out of the concrete door groove 1 to hold the stacked beam small door 3 in place.

[0065] 7) End, open the emergency gate 9 to release water.

[0066] This invention utilizes a locking module and a support module to confine all stacked beam doors 3 to the upstream side of the door slot 1. After the locking and support are released, the stacked beam door 3 to be inspected moves to the downstream side of the door slot 1 under hydraulic impact and is then lifted out of the door slot 1 using a lifting module. This invention has a simple structure and is easy to operate, ensuring free maintenance of the stacked beam doors 2, avoiding the need to use lifting equipment to lift the stacked beam doors 3 one by one, saving labor, reducing operational difficulty, and eliminating the need for a dedicated door storage facility for the stacked beam doors 3.

[0067] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A stacked beam gate system for a hydropower station, characterized in that, The system includes: The gate slot is located at the water intake of the dam body, and a stacked beam gate is installed on the upstream side inside it. The stacked beam gate is composed of multiple stacked beam gates. A locking module is disposed on the bottom surface of the upstream side of the door slot and is retractable in a direction perpendicular to the side wall of the stacked beam small door, for locking the position of each stacked beam small door. A support module is disposed on the downstream surface of the door slot and is retractable in a direction perpendicular to the downstream surface of the door slot, for supporting all stacked beam small doors on the upstream side within the door slot; A lifting module is installed at the top of the door slot and connected to the stacked beam door to be inspected. It is used to lift the stacked beam door to be inspected out of the door slot after the door to be inspected is unlocked and supported and moved to the downstream side of the door slot. The system also includes: Track grooves are respectively set on the two opposite bottom surfaces of the door groove along the height direction of the door groove; multiple transverse track lines are set in the track groove, and the transverse track lines correspond one-to-one with the stacked beam small door. The stacked beam small door can move to the downstream side of the door groove along the corresponding transverse track line. The track groove is also provided with vertical trajectory lines, which are arranged alternately with the horizontal trajectory lines; The width of the door groove is greater than twice the thickness of the stacked beam door.

2. The system according to claim 1, characterized in that, The support module includes: Multiple support tops are respectively disposed on the downstream surface of the door slot at opposite ends of each stacked beam door; along a direction perpendicular to the downstream surface of the door slot, the support tops can extend from or retract from the inner side of the downstream surface of the door slot to the inner side of the downstream surface of the door slot; the support tops are used to support the corresponding stacked beam door on the upstream side of the door slot.

3. The system according to claim 2, characterized in that, The support top is connected to the corresponding stacked beam small door. The support top is also used to pull the stacked beam small door to be repaired along the corresponding transverse trajectory line to the downstream side of the door slot when the corresponding stacked beam small door needs to be repaired.

4. The system according to claim 2, characterized in that, Each stacked beam gate corresponds to four supporting tops, and the four supporting tops are respectively located at the four corners of the stacked beam gate.

5. The system according to claim 1, characterized in that, The locking module includes: Multiple locking elements are respectively disposed on opposite side walls of each stacked beam door; along a direction perpendicular to the side wall of the stacked beam door, the locking elements can extend from or retract into the side wall of the stacked beam door; Each of the stacked beam doors has a slot on the bottom surface of the door groove corresponding to its opposite side walls; the locking member is used to engage with the corresponding slot when extended to lock the stacked beam door.

6. The system according to claim 1, characterized in that, The system also includes: The control module is connected to the locking module, the support module, and the lifting module, and is used to control the operation of the locking module, the support module, and the lifting module.

7. The system according to claim 5, characterized in that, The locking component is a steel structure.

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