CN112301945A - Device and method for overhauling diversion tunnel plugging door slot in hydropower and hydraulic engineering construction - Google Patents
Device and method for overhauling diversion tunnel plugging door slot in hydropower and hydraulic engineering construction Download PDFInfo
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- CN112301945A CN112301945A CN202011269294.XA CN202011269294A CN112301945A CN 112301945 A CN112301945 A CN 112301945A CN 202011269294 A CN202011269294 A CN 202011269294A CN 112301945 A CN112301945 A CN 112301945A
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- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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Abstract
The utility model provides a device and method for overhauing water and electricity hydraulic engineering construction diversion tunnel shutoff gate groove, it includes overflows the frame, the breakwater, stagnant water mechanism, positive support and side direction support, through set up the breakwater in frame both sides overflowing, set up stagnant water mechanism in the breakwater both sides, a plurality of positive supports and side direction support are connected with stagnant water mechanism and breakwater respectively, through being located gate machine on gate groove upper portion with overflow the frame and be connected the release and overflow the frame, positive support and side direction support and gate groove roll cooperation, water seal pressurization inflation back and gate groove forward guide rail and reverse guide rail conflict sealedly, rivers flow through overflowing the frame. The invention overcomes the problems of large construction amount and high cost of the prior diversion tunnel plugging that the cofferdam or the plug is adopted to create the construction condition, and has the characteristics of simple structure, realization of water stop of the inner cavity of the gate slot, creation of the maintenance condition and the environment of the gate slot, safety, reliability, low cost, high efficiency and simple and convenient operation.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering diversion tunnel plugging, and relates to a device and a method for overhauling a diversion tunnel plugging door slot in hydropower hydraulic engineering construction.
Background
In the construction of hydropower, because a dam needs to be intercepted, a diversion channel in the construction period needs to be arranged, so that the diversion channel is generally constructed in the early stage to meet the flood discharge channel in ecological drainage or flood seasons in the construction period, a diversion tunnel needs to be plugged after a power station is basically constructed, the construction period is short and the construction period is generally required to be carried out in dry land environment when the construction amount of plugging concrete is large, and if the river runoff is large or the upstream does not have the construction channel, a cofferdam is rarely adopted to create dry land conditions, so that plugging doors are arranged in the front of and behind the diversion tunnel in a great number of cases, the plugging doors are disposable, and the gate slots of the doors are operated in the whole diversion period and generally experience the flood seasons for a plurality of times. For guaranteeing that the shutoff gate is once only gone on smoothly down the floodgate, the normal conditions will be overhauld the gate slot buried spare of having gone through several years water conservancy diversion, and main maintenance department includes: the key parts of the upstream and downstream gate slots, main bearing surface, water stop surface and the like are used for ensuring the gate to be opened completely. The diversion system plays an important role in the construction of power stations. The maintenance of diversion tunnel gate slots often becomes a key process for restricting the plugging of diversion tunnels.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device and a method for overhauling a diversion tunnel blocking door slot in the construction of a hydropower and hydraulic engineering, wherein the device and the method are simple in structure, water baffles are arranged on two sides of a overflowing frame, water stopping mechanisms are arranged on two sides of the water baffles, a plurality of positive supports and lateral supports are respectively connected with the water stopping mechanisms and the water baffles, a gantry crane positioned on the upper part of the door slot is connected with the overflowing frame to release the overflowing frame, the positive supports and the lateral supports are in rolling fit with the door slot, a water seal is pressed and expanded to be abutted against and sealed with a forward guide rail and a reverse guide rail of the door slot, water flows through the overflowing frame, the water stopping of an inner cavity of the door slot is realized, and the maintenance conditions and the environment of the.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a device for overhauling a diversion tunnel plugging door slot in hydropower and hydraulic engineering construction comprises a flow frame, a water baffle, a water stopping mechanism, a positive support and a lateral support; the water baffle is located the both sides of overflowing the frame and is connected rather than the perpendicular, and stagnant water mechanism is located the both sides of water baffle and is connected rather than, just supports to be connected with stagnant water mechanism, and the side direction is supported and is connected with the water baffle, and stagnant water mechanism, just support and side direction support all lie in the same one side of water baffle and keep away from and overflow the frame, and the forward gyro wheel that just supported and the side direction gyro wheel that the side direction supported lie in respectively overflowing the both sides mutually perpendicular of frame.
The frame that overflows is hollow rectangular frame, is located the frame upside and sets up the otic placode.
The water baffle is a rectangular flat plate, and each side surface of the water baffle extends out of the flow frame.
The water stopping mechanism comprises a plurality of rib plates connected with the support plate, limiting pipes connected with the rib plates and water seals matched with the limiting pipes.
The support plate and the rib plate are connected with the water baffle, and the limiting pipe protrudes out of the water baffle.
The limiting pipe is a hollow pipe body, a notch is formed in the axial direction, the side of the notch protrudes out of the water baffle, the water seal is a circular rubber pipe with one closed end, and the outer wall of the circular rubber pipe is located outside the notch of the limiting pipe.
The positive support comprises a positive roller matched with a positive seat pin shaft, and the positive seat is connected with a support plate of the water stopping mechanism.
The lateral support comprises a lateral roller matched with a pin shaft of the lateral seat and a support arm connected with the lateral seat, and the support arm is connected with the water baffle.
And a temporary reinforcing support is arranged between the positive support and the lateral support on the water baffle.
The plugging method of the device for overhauling the diversion tunnel plugging door slot in the hydropower and hydraulic engineering construction comprises the following steps:
step 1, adopting a hook of a gantry crane to be hooked with an ear plate on a gate slot, wherein the gantry crane is positioned at the upper part of the gate slot and lifts the gate slot to the upper part of the gate slot;
step 2-1, when the gantry crane continues to release the overflow frame, if the two sides of the overflow frame are asynchronous when the overflow frame descends, the lower part in the overflow frame is provided with a balancing weight, so that the two sides of the overflow frame descend synchronously;
2-2, after the gantry crane completely releases the overflow frame, if the bottom of the overflow frame can not be completely contacted with the bottom of the door slot, a diver is used for submerging into the bottom of the door slot to clean until the bottom of the overflow frame is completely contacted with the bottom of the door slot, and the upper side surface of the overflow frame is flush with the upper side surface of the door slot; at the moment, the water seal is not inserted into the limiting pipe, and water flows through the two sides of the flow frame and the water baffle;
step 6, repairing the door slot according to the door slot repairing content;
step 7, after maintenance is finished, synchronously injecting water into the gate slots on the two sides of the overflow frame, wherein the water level in the gate slots is consistent with the water level of the diversion tunnel; and lifting the overflow frame to the upper part of the gate slot by using the gate machine again.
A device for overhauling a diversion tunnel plugging door slot in hydropower and hydraulic engineering construction comprises a flow frame, a water baffle, a water stopping mechanism, a positive support and a lateral support; the water baffle is located the both sides of overflowing the frame and is connected rather than perpendicularly, and stagnant water mechanism is located the both sides of water baffle and is connected rather than, just supports to be connected with stagnant water mechanism, and the side direction is supported and is connected with the water baffle, and stagnant water mechanism, just support and side direction support all lie in the same one side of water baffle and keep away from and overflow the frame, and the forward gyro wheel that just supported and the side direction gyro wheel that the side direction supported lie in respectively and overflow the both sides mutually perpendicular of frame. Simple structure, through setting up the breakwater in frame both sides overflowing, set up stagnant water mechanism in the breakwater both sides, a plurality ofly just support and the side direction supports and is connected with stagnant water mechanism and breakwater respectively, through being located the door machine on door groove upper portion with overflow the frame and be connected the release and overflow the frame, just support and side direction support and door groove roll cooperation, it is sealed with door groove forward guide rail and reverse guide rail conflict after the water seal pressurization inflation, rivers flow from overflowing the frame, realize the door groove inner chamber stagnant water, create door groove maintenance condition and environment, safety and reliability, low cost, high efficiency, easy operation is convenient.
In a preferred scheme, the flow passage frame is a hollow rectangular frame, and an ear plate is arranged on the upper side of the frame. Simple structure, during the use, hollow structure's the frame that overflows is used for the through of rivers, and the otic placode is used for being connected with the gate machine on gate groove upper portion, overflows the frame through the gate machine release and enters into the gate groove.
In a preferred scheme, the water baffle is a rectangular flat plate, and each side surface of the water baffle extends out of the flow frame. The structure is simple, and when the water baffle is manufactured, after the water baffle is connected with the flow frame, each side face of the water baffle extends out of each side face of one side of the flow frame.
In a preferred scheme, the water stopping mechanism comprises a plurality of rib plates connected with the support plate, a limiting pipe connected with the rib plates, and a water seal matched with the limiting pipe. Simple structure, during the use, be used for overflowing after the frame sinks the gate slot bottom completely with spacing pipe complex water seal, contradict with gate slot forward guide rail and reverse guide rail and seal, avoid rivers to enter into the cavity in gate slot, create advantage and maintenance environment for the maintenance.
In the preferred scheme, the support plate and the rib plate are connected with the water baffle, and the limiting pipe protrudes out of the water baffle. Simple structure, during the use, spacing pipe is protruding outside the side of breakwater, is favorable to the water seal in the spacing pipe to contact with door pocket forward guide rail and reverse guide rail after the punching press, prevents rivers and flows through.
In the preferred scheme, the limiting pipe is a hollow pipe body, a notch is arranged along the axial direction, the side of the notch protrudes out of the water baffle, the water seal is a circular rubber pipe with one closed end, and the outer wall of the circular rubber pipe is positioned outside the notch of the limiting pipe. The structure is simple, when the water seal device is used, high-pressure water is injected into the water seal, the water seal is enabled to be radially protruded towards the outer diameter of the notch of the limiting pipe, and the water seal protruded out of the notch is in butt seal with the forward guide rail and the reverse guide rail of the gate groove without falling out of the limiting pipe.
In a preferred scheme, the positive support comprises a positive roller matched with a pin shaft of the positive seat, and the positive seat is connected with a support plate of the water stopping mechanism. Simple structure, during the use, at the in-process that overflows the frame and go up and down along the gate slot, the contact of forward roller and gate slot inner wall rolls.
In a preferred embodiment, the lateral support comprises a lateral roller cooperating with a lateral seat pin shaft, and an arm connected to the lateral seat, the arm being connected to the splash plate. Simple structure, during the use, at the in-process that overflows the frame along the gate slot oscilaltion, side direction gyro wheel and gate slot guided way cooperation roll along the guided way, and the restriction overflows the perpendicular decline of frame, avoids rivers to cause and overflows the frame slope when descending.
Preferably, the guide rail is protruded on the inner wall of the door slot, and a limiting groove arranged on the lateral roller is matched with the guide rail to limit the radial movement of the lateral roller.
In a preferred scheme, a temporary reinforcing support is arranged on the water baffle between the positive support and the lateral support. Simple structure, during the use, at the complete sealed back in door slot, rivers no longer enter into the door slot intracavity, take out the water of drying the door slot intracavity, and at this moment, the outside water pressure of cavity adopts the interim reinforcement to support one end and be connected with the breakwater to the pressure increase that the breakwater formed, and one end is contradicted with door inslot wall, improves the compressive strength of breakwater.
In a preferred scheme, the plugging method of the device for overhauling the diversion tunnel plugging door slot in the hydropower and hydraulic engineering construction comprises the following steps:
step 1, adopting a hook of a gantry crane to be hooked with an ear plate on a gate slot, wherein the gantry crane is positioned at the upper part of the gate slot and lifts the gate slot to the upper part of the gate slot;
step 2-1, when the gantry crane continues to release the overflow frame, if the two sides of the overflow frame are asynchronous when the overflow frame descends, the lower part in the overflow frame is provided with a balancing weight, so that the two sides of the overflow frame descend synchronously;
2-2, after the gantry crane completely releases the overflow frame, if the bottom of the overflow frame can not be completely contacted with the bottom of the door slot, a diver is used for submerging into the bottom of the door slot to clean until the bottom of the overflow frame is completely contacted with the bottom of the door slot, and the upper side surface of the overflow frame is flush with the upper side surface of the door slot; at the moment, the water seal is not inserted into the limiting pipe, and water flows through the two sides of the flow frame and the water baffle;
step 6, repairing the door slot according to the door slot repairing content;
step 7, after maintenance is finished, synchronously injecting water into the gate slots on the two sides of the overflow frame, wherein the water level in the gate slots is consistent with the water level of the diversion tunnel; and lifting the overflow frame to the upper part of the gate slot by using the gate machine again. The method is simple and convenient to operate, a cofferdam or a plug is not needed for plugging the diversion tunnel, and the overflowing is not influenced.
The utility model provides a device and method for overhauing water and electricity hydraulic engineering construction diversion tunnel shutoff gate groove, it includes overflows the frame, the breakwater, stagnant water mechanism, positive support and side direction support, through set up the breakwater in frame both sides overflowing, set up stagnant water mechanism in the breakwater both sides, a plurality of positive supports and side direction support are connected with stagnant water mechanism and breakwater respectively, through being located gate machine on gate groove upper portion with overflow the frame and be connected the release and overflow the frame, positive support and side direction support and gate groove roll cooperation, water seal pressurization inflation back and gate groove forward guide rail and reverse guide rail conflict sealedly, rivers flow through overflowing the frame. The invention overcomes the problems of large construction amount and high cost of the prior diversion tunnel plugging that the cofferdam or the plug is adopted to create the construction condition, and has the characteristics of simple structure, realization of water stop of the inner cavity of the gate slot, creation of the maintenance condition and the environment of the gate slot, safety, reliability, low cost, high efficiency and simple and convenient operation.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a schematic top view of fig. 1.
Fig. 4 is a schematic bottom view of fig. 1.
Fig. 5 is an enlarged schematic view of a portion a of fig. 3.
FIG. 6 is a schematic view of the connection structure of the water baffle and the water stopping mechanism of the present invention.
Fig. 7 is an enlarged schematic view of fig. 3 at B.
Fig. 8 is a schematic view of the structure of the gate slot of the present invention.
Fig. 9 is a schematic view of the structure of the present invention engaged with a door slot.
In the figure: the water stopping device comprises a flow frame 1, an ear plate 11, a water baffle 2, a temporary reinforcing support 21, a water stopping mechanism 3, a support plate 31, a rib plate 32, a limiting pipe 33, a water seal 34, a positive support 4, a positive seat 41, a positive roller 42, a lateral support 5, a lateral seat 51, a lateral roller 52 and a support arm 53.
Detailed Description
As shown in fig. 1 to 9, a device for overhauling a diversion tunnel plugging door slot in hydropower hydraulic engineering construction comprises a flow frame 1, a water baffle 2, a water stopping mechanism 3, a positive support 4 and a lateral support 5; the water baffle 2 is located and overflows frame 1's both sides and is connected rather than perpendicular, and stagnant water mechanism 3 is located the both sides of water baffle 2 and is connected with it, and positive support 4 is connected with stagnant water mechanism 3, and lateral support 5 is connected with water baffle 2, and stagnant water mechanism 3, positive support 4 and lateral support 5 all lie in the same one side of water baffle 2 and keep away from and overflow frame 1, and positive support 4's forward gyro wheel 42 and lateral support 5's lateral roller 52 lie in the both sides mutually perpendicular that overflows frame 1 respectively. Simple structure, through set up breakwater 2 in frame 1 both sides overflowing, set up stagnant water mechanism 3 in 2 both sides of breakwater, a plurality of positive supports 4 and side direction support 5 are connected with stagnant water mechanism 3 and breakwater 2 respectively, through being located the door machine on door slot upper portion and overflowing frame 1 and be connected the release and overflow frame 1, positive support 4 and side direction support 5 and door slot roll-over cooperation, it is sealed with door slot forward guide rail and reverse guide rail conflict behind the 34 pressurization inflation of water seal, rivers flow from overflowing frame 1, realize door slot inner chamber stagnant water, create door slot maintenance condition and environment, safety and reliability, low cost, high efficiency, easy operation is convenient.
In a preferred scheme, the flow passage frame 1 is a hollow rectangular frame, and an ear plate 11 is arranged on the upper side of the frame. Simple structure, during the use, hollow structure overflows frame 1 and is used for the through of rivers, otic placode 11 is used for being connected with the gate machine on gate slot upper portion, overflows frame 1 through the gate machine release and enters into the gate slot.
In a preferred scheme, the water baffle 2 is a rectangular flat plate, and each side surface of the water baffle extends out of the flow frame 1. The structure is simple, and during manufacturing, after the water baffle 2 is connected with the overflowing frame 1, each side surface of the water baffle 2 extends out of each side surface of one side of the overflowing frame 1.
In a preferred scheme, the water stopping mechanism 3 comprises a plurality of rib plates 32 connected with the support plate 31, a limiting pipe 33 connected with the rib plates 32, and a water seal 34 matched with the limiting pipe 33. Simple structure, during the use, with spacing pipe 33 complex water seal 34 be used for overflowing frame 1 and sink into door groove bottom completely after, contradict with door groove forward guide rail and reverse guide rail and seal, avoid rivers to enter into the cavity in door groove, create advantage and maintenance environment for the maintenance.
In the preferred scheme, the support plate 31 and the rib plate 32 are connected with the splash guard 2, and the limiting pipe 33 protrudes out of the splash guard 2. The structure is simple, when in use, the limit pipe 33 protrudes out of the side surface of the water baffle 2, which is beneficial to the water seal 34 in the limit pipe 33 to contact with the forward guide rail and the reverse guide rail of the gate slot after being punched, and the water flow is prevented.
In a preferred scheme, the limiting pipe 33 is a hollow pipe body, a notch is axially formed in the limiting pipe, the notch protrudes out of the water baffle 2, the water seal 34 is a circular rubber pipe with one closed end, and the outer wall of the circular rubber pipe is located outside the notch of the limiting pipe 33. The structure is simple, when the water seal device is used, high-pressure water is injected into the water seal 34, the water seal 34 is enabled to be protruded radially towards the outer diameter of the notch of the limiting pipe 33, and the water seal 34 protruded out of the notch is in butt seal with the forward guide rail and the reverse guide rail of the gate groove without escaping from the limiting pipe 33.
In a preferred scheme, the positive support 4 comprises a positive roller 42 in pin fit with a positive seat 41, and the positive seat 41 is connected with the support plate 31 of the water stopping mechanism 3. Simple structure, during the use, at the in-process that overflows frame 1 and go up and down along the gate slot, positive direction gyro wheel 42 rolls with the contact of gate slot inner wall.
In a preferred embodiment, the lateral support 5 comprises a lateral roller 52 which is pin-fitted to the lateral seat 51, and an arm 53 which is connected to the lateral seat 51, the arm 53 being connected to the splash plate 2. Simple structure, during the use, at the in-process that overflows frame 1 along the gate slot oscilaltion, side direction gyro wheel 52 and gate slot guided way cooperation roll along the guided way, and the restriction overflows frame 1 and descends perpendicularly, avoids rivers to cause and overflows the slope when frame 1 descends.
Preferably, the guide rail protrudes from the inner wall of the door slot, and the limiting slot provided on the lateral roller 52 cooperates with the guide rail to limit the radial movement of the lateral roller 52.
In a preferred scheme, a temporary reinforcing support 21 is arranged on the water baffle 2 between the positive support 4 and the lateral support 5. Simple structure, during the use, at the complete sealed back in door slot, rivers no longer enter into the door slot intracavity, take out the water of drying the door slot intracavity, and at this moment, the outside water pressure of cavity adopts and consolidates temporarily to support 21 one end and be connected with breakwater 2 to the pressure increase that breakwater 2 formed, and one end is contradicted with door inslot wall, improves breakwater 2's compressive strength.
In a preferred scheme, the plugging method for the device for overhauling the diversion tunnel plugging door slot in the hydropower and hydraulic engineering construction comprises the following steps:
step 1, adopting a hook of a gantry crane to be hooked with an ear plate 11 on a flow passage frame 1, wherein the gantry crane is positioned at the upper part of a gate slot and lifts the flow passage frame 1 to the upper part of the gate slot;
step 2-1, when the gantry crane continues to release the overflow frame 1, if the two sides of the overflow frame 1 are not synchronous when the overflow frame 1 descends, a balancing weight is arranged at the lower part in the overflow frame 1, so that the two sides of the overflow frame 1 descend synchronously;
2-2, after the gantry crane completely releases the overflow frame 1, if the bottom of the overflow frame 1 can not be completely contacted with the bottom of the gantry trough, a diver is used for submerging into the bottom of the gantry trough for cleaning until the bottom of the overflow frame 1 is completely contacted with the bottom of the gantry trough, and the upper side surface of the overflow frame 1 is flush with the upper side surface of the gantry trough; at the moment, the water seal 34 is not inserted into the limit pipe 33, and water flows through the two sides of the flow frame 1 and the water baffle 2;
step 6, repairing the door slot according to the door slot repairing content;
step 7, after maintenance is finished, synchronously injecting water into the gate slots on the two sides of the overflow frame 1, wherein the water level in the gate slots is consistent with the water level of the diversion tunnel; and lifting the overflow frame 1 to the upper part of the gate slot by using the gate machine again. The method is simple and convenient to operate, a cofferdam or a plug is not needed for plugging the diversion tunnel, and the overflowing is not influenced.
The device and the method for overhauling the diversion tunnel blocking door slot in the hydropower and hydraulic engineering construction are characterized in that the water baffle plates 2 are arranged on two sides of the overflow frame 1 during installation and use, the water stopping mechanisms 3 are arranged on two sides of the water baffle plates 2, the plurality of positive supports 4 and the plurality of lateral supports 5 are respectively connected with the water stopping mechanisms 3 and the water baffle plates 2, a door machine positioned on the upper portion of the door slot is connected with the overflow frame 1 to release the overflow frame 1, the positive supports 4 and the lateral supports 5 are in rolling fit with the door slot, the water seal 34 is in abutting joint with the forward guide rail and the reverse guide rail of the door slot after being pressurized and expanded, water flows through the overflow frame 1, water stopping of an inner cavity of the door slot is realized, the maintenance condition and the environment of the door slot are created.
During the use, hollow structure's frame 1 that overflows is used for the through of rivers, and otic placode 11 is used for being connected with the gate machine on gate slot upper portion, and frame 1 enters into the gate slot through the release of gate machine.
During manufacturing, after the water baffle 2 is connected with the flow frame 1, each side face of the water baffle 2 extends out of each side face of one side of the flow frame 1.
When the overflow device is used, the water seal 34 matched with the limiting pipe 33 is used for abutting against and sealing with the forward guide rail and the reverse guide rail of the gate slot after the overflow frame 1 is completely sunk into the bottom of the gate slot, so that water flow is prevented from entering the cavity of the gate slot, and favorable conditions and maintenance environments are created for maintenance.
When the water seal device is used, the limiting pipe 33 protrudes out of the side face of the water baffle 2, so that the water seal 34 in the limiting pipe 33 is in contact with the forward guide rail and the reverse guide rail of the gate groove after being stamped, and water flow is prevented.
When the limiting pipe is used, high-pressure water is injected into the water seal 34, so that the water seal 34 protrudes radially outwards from the notch of the limiting pipe 33, and the water seal 34 protruding out of the notch is in butt seal with the forward guide rail and the reverse guide rail of the gate groove without falling out of the limiting pipe 33.
When the overflow device is used, the forward idler wheel 42 rolls in contact with the inner wall of the door slot in the process that the overflow frame 1 ascends and descends along the door slot.
When the device is used, in the process that the overflow frame 1 ascends and descends along the door slot, the lateral idler wheels 52 are matched with the door slot guide rails and roll along the guide rails to limit the overflow frame 1 to vertically descend, so that the overflow frame 1 is prevented from inclining when descending due to water flow.
During the use, after the gate slot is sealed completely, rivers no longer enter into the gate slot intracavity, take out the water of drying the gate slot intracavity, and at this moment, the outside water pressure of cavity increases the pressure that breakwater 2 formed, adopts and consolidates temporarily and supports 21 one end and be connected with breakwater 2, and one end is contradicted with gate slot inner wall, improves breakwater 2's compressive strength.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (10)
1. The utility model provides a device for overhauing water and electricity hydraulic engineering construction diversion tunnel shutoff gate slot, characterized by: the water-stop device comprises a flow frame (1), a water baffle (2), a water stop mechanism (3), a positive support (4) and a lateral support (5); the water baffle (2) is located the both sides of overflowing frame (1) and is connected rather than perpendicularly, and stagnant water mechanism (3) are located the both sides of manger plate (2) and are connected rather than, just support (4) and be connected with stagnant water mechanism (3), and side direction support (5) are connected with manger plate (2), and stagnant water mechanism (3), just support (4) and side direction support (5) and all lie in manger plate (2) keep away from overflowing frame (1) with one side, and the side direction gyro wheel (52) of just supporting forward gyro wheel (42) and side direction support (5) of (4) are located the both sides mutually perpendicular of overflowing frame (1) respectively.
2. The device of claim 1 for overhauling a diversion tunnel plugging door slot in hydroelectric hydraulic engineering construction, which is characterized in that: the flow frame (1) is a hollow rectangular frame, and an ear plate (11) is arranged on the upper side of the frame.
3. The device of claim 1 for overhauling a diversion tunnel plugging door slot in hydroelectric hydraulic engineering construction, which is characterized in that: the water baffle (2) is a rectangular flat plate, and each side surface of the water baffle extends out of the flow frame (1).
4. The device of claim 1 for overhauling a diversion tunnel plugging door slot in hydroelectric hydraulic engineering construction, which is characterized in that: the water stopping mechanism (3) comprises a plurality of rib plates (32) connected with the support plate (31), limiting pipes (33) connected with the rib plates (32), and water seals (34) matched with the limiting pipes (33).
5. The device of claim 4 for overhauling a diversion tunnel plugging door slot in hydroelectric hydraulic engineering construction, which is characterized in that: the support plate (31) and the rib plate (32) are connected with the water baffle (2), and the limiting pipe (33) protrudes out of the water baffle (2).
6. The device of claim 4 for overhauling a diversion tunnel plugging door slot in hydroelectric hydraulic engineering construction, which is characterized in that: the limiting pipe (33) is a hollow pipe body, a notch is formed in the axial direction, the side of the notch protrudes out of the water baffle (2), the water seal (34) is a round rubber pipe with one closed end, and the outer wall of the round rubber pipe is located outside the notch of the limiting pipe (33).
7. The device of claim 1 for overhauling a diversion tunnel plugging door slot in hydroelectric hydraulic engineering construction, which is characterized in that: the positive support (4) comprises a positive roller (42) matched with a positive seat (41) through a pin shaft, and the positive seat (41) is connected with a support plate (31) of the water stopping mechanism (3).
8. The device of claim 1 for overhauling a diversion tunnel plugging door slot in hydroelectric hydraulic engineering construction, which is characterized in that: the lateral support (5) comprises a lateral roller (52) matched with a lateral seat (51) through a pin shaft, and a support arm (53) connected with the lateral seat (51), wherein the support arm (53) is connected with the water baffle (2).
9. The device of claim 1 for overhauling a diversion tunnel plugging door slot in hydroelectric hydraulic engineering construction, which is characterized in that: and a temporary reinforcing support (21) is arranged between the positive support (4) and the lateral support (5) on the water baffle (2).
10. The plugging method of the device for repairing the plugging gate slot of the diversion tunnel in the hydropower engineering construction according to any one of claims 1 to 9, characterized by comprising the following steps:
step 1, adopting a hook of a gantry crane to be hooked with an ear plate (11) on a gate frame (1), wherein the gantry crane is positioned at the upper part of a gate slot and lifts the gate frame (1) to the upper part of the gate slot;
step 2, trying to put the overflow frame, slowly releasing the overflow frame (1) by the gantry crane, enabling the lateral idler wheel (52) to be matched with a vertical guide rail in the door groove, and enabling the forward idler wheel (42) to be in rolling contact with the inner wall of the door groove;
step 2-1, when the gantry crane continues to release the overflow frame (1), if the two sides of the overflow frame (1) are asynchronous when the overflow frame (1) descends, a balancing weight is arranged at the lower part in the overflow frame (1) to ensure that the two sides of the overflow frame (1) descend synchronously;
2-2, after the gantry crane completely releases the overflow frame (1), if the bottom of the overflow frame (1) can not be completely contacted with the bottom of the door slot, a diver is used for submerging into the bottom of the door slot to clean until the bottom of the overflow frame (1) is completely contacted with the bottom of the door slot, and the upper side surface of the overflow frame (1) is flush with the upper side surface of the door slot; at the moment, the water seal (34) is not inserted into the limiting pipe (33), and water flows through the two sides of the flow frame (1) and the water baffle (2);
step 3, releasing the overflow frame, and lifting the overflow frame (1) to the upper part of the door slot by the door machine; inserting a water seal (34) into the limiting pipe (33), wherein the closed end of the water seal (34) is positioned at the bottom of the flow frame (1); releasing the overcurrent frame (1) again to enable the bottom of the overcurrent frame to be in complete contact with the bottom of the door slot;
step 4, synchronously injecting high-pressure water into the water seals (34) on the two sides of the overflow frame (1) by using a high-pressure water pump until the water seals (34) expand out of the notches of the limiting pipes (33) to be in abutting seal with the walls of the door slots;
step 5, synchronously pumping water in the gate slots on the two sides of the overflow frame (1) by using a water pump; a temporary reinforcing support (21) is adopted for reinforcement;
step 6, repairing the door slot according to the door slot repairing content;
step 7, after maintenance is finished, synchronously injecting water into the door slots on the two sides of the overflow frame (1), wherein the water level in the door slots is consistent with the water level of the diversion tunnel; and the gantry crane is adopted again to lift the overflow frame (1) to the upper part of the gate slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269294.XA CN112301945A (en) | 2020-11-13 | 2020-11-13 | Device and method for overhauling diversion tunnel plugging door slot in hydropower and hydraulic engineering construction |
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| CN202011269294.XA CN112301945A (en) | 2020-11-13 | 2020-11-13 | Device and method for overhauling diversion tunnel plugging door slot in hydropower and hydraulic engineering construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319513A (en) * | 2021-12-23 | 2022-04-12 | 重庆市排水有限公司 | Non-water-cut-off maintenance device for deep water pump house |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319513A (en) * | 2021-12-23 | 2022-04-12 | 重庆市排水有限公司 | Non-water-cut-off maintenance device for deep water pump house |
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