Siphon water outlet anti-ground-touching device and non-drainage sinking construction method thereof

Abstract

The application discloses a siphon water intake anti-ground-touching device and a non-drainage sinking construction method thereof, and belongs to the technical field of emergency rescue and siphon water intake and drainage construction, which comprises a siphon diving rectifier device, the upper portion of the siphon diving rectifier device is connected with a horizontal siphon pipe through a pipe elbow, a pipe half joint is arranged on the outer side of the horizontal siphon pipe, a steel column buttress is arranged on the bottom surface of the pipe half joint, an extension support rod is arranged on the steel column buttress, a base is arranged on the bottom surface of the steel column buttress, a modularized sliding rail matched with the base is arranged on the dam water-facing surface slope protection, a guide pulley is arranged on the side of the modularized sliding rail closest to the bank slope, and a positioning hole for connecting a traction steel wire rope is arranged on the extension support rod. The application has the advantages of non-wading installation, non-requirement of large hoisting equipment, non-drainage implementation, fast device assembly rate, convenient and simple implementation, low cost, high efficiency, safety, prevention of equipment from touching the ground, and guarantee of smooth installation and operation of the siphon water intake.

Description

Technical Field

[0001] This invention relates to the field of emergency rescue and siphon drainage construction technology, and in particular to a siphon inlet anti-bottom-contact device and its non-drainage sinking construction method. Background Technology

[0002] When water levels rise rapidly, earth-rock dams and landslide dams in reservoirs, rivers, and lakes threaten the safety of the dams, necessitating rapid discharge across the dams. Vacuum jet siphon emergency discharge devices, due to their high power, lack of power, and excavation-free operation, serve as a rapid solution for emergency response to dam risks. They can meet the needs of large-volume emergency rescue, not only overcoming dam structures or terrain obstacles but also possessing low-energy operation and continuously controllable safety performance. Utilizing natural forces, they can reduce flood peaks in the shortest possible time. During non-flood seasons, they can divert and regulate water from reservoirs, rivers, and lakes to meet the needs of production, domestic water use, and irrigation.

[0003] Landslide-dammed lakes or water source areas often face transportation restrictions, preventing construction cranes from accessing the dam. The core component of vacuum jet siphons, the submersible rectifying device, has a matching diameter of DN1000-DN1200, making it large and heavy. Traditional methods require cranes to submerge it at the reservoir bottom for water intake, or emptying the reservoir and treating the foundation before placing the intake equipment. Furthermore, traditional construction methods require equipment support designs based on the degree of siltation at the reservoir bottom, and in emergency situations, measures to prevent the equipment from touching the bottom are necessary. Landslide-dammed dams, formed by landslide debris, exhibit significant geometric variations, typically with long slopes. When placing the short arm of the siphon at the highest point of the slope, the submersible rectifying device must have a sufficient submersion depth, and its inlet should not touch the bottom. When access to the dam is unavailable, traditional methods are difficult to implement for quickly deploying large water intake equipment, and are no longer suitable for the aforementioned emergency environments. New technological solutions are needed to replace these methods.

[0004] In summary, existing vacuum jet siphon emergency drainage devices rely on large hoisting equipment for installation, which involves cumbersome construction steps, is inconvenient to install, and is difficult to apply to emergency environments. Summary of the Invention

[0005] The purpose of this invention is to provide a siphon inlet anti-bottom-contact device and its non-drainage sinking construction method, solving the problem that existing vacuum jet siphon emergency drainage devices rely on large hoisting equipment for installation, which involves cumbersome construction steps and is inconvenient to install.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This invention discloses a siphon intake anti-bottom-contact device, comprising a siphon submersible rectifier. The upper part of the siphon submersible rectifier is connected to a transverse siphon pipe via a pipe bend. A pipe split is provided on the outer side of the transverse siphon pipe. A steel column support is provided on the bottom surface of the pipe split. An extension rod is provided on the steel column support. A base is provided on the bottom surface of the steel column support. A modular slide rail matching the base is provided on the water-facing slope of the dam. A guide pulley is provided on the side of the modular slide rail closest to the bank slope. A positioning hole for connecting a traction steel wire rope is provided on the extension rod.

[0008] Furthermore, both ends of the modular slide rail are provided with modular assembly bolt holes, and the side wall of the modular slide rail closest to the bank slope is provided with pulley fixing bolt holes for anchoring the pulley.

[0009] Furthermore, the modular slide rail is configured as a double slide rail, which is installed on the water-facing slope of the dam. The direction of the double slide rail is parallel to the slope, and a connecting piece is provided between the double slide rails.

[0010] Furthermore, the base includes two parallel square channel steels that slide along the double-track slide rail. A tubular connector is provided in the center of the inner side of the two square channel steels. The two square channel steels and the tubular connector form an H-shaped base. The steel column support is perpendicularly connected to the tubular connector.

[0011] Furthermore, the steel column support is provided with a support rod fixing component, which includes two semi-circular tube bodies. The semi-circular tube bodies are sleeved on the outside of the steel column support and locked in place by bolts. The extension support rod is inserted into the middle position of the semi-circular tube body facing the bank slope.

[0012] Furthermore, one end of the extension rod is provided with a socket rod, and the other end of the extension rod is provided with a second socket. A socket rod of the extension rod is inserted into the second socket of the adjacent extension rod and locked in place by bolts. The semi-circular pipe body is provided with a first socket that matches the socket rod, and the positioning hole is provided on the extension rod near the second socket.

[0013] Furthermore, the bottom frame of the siphon submersible rectifier is provided with a water inlet on the side.

[0014] Furthermore, a tapered tube is provided between the siphon submersible rectifier and the pipe bend, the bottom end of the tapered tube is connected to the flange at the upper end of the siphon submersible rectifier, and the upper end of the tapered tube is welded to the pipe bend.

[0015] Furthermore, the pipe bend is a 90° bend.

[0016] A method for constructing a siphon inlet anti-bottom-contact device without drainage during sinking, wherein the siphon inlet anti-bottom-contact device described in any of the above-mentioned methods is installed using this method, and the specific construction method is as follows:

[0017] Step 1: Measure the water depth at the inlet on the side of the bottom frame of the siphon submersible rectifier and measure the elevation of the transverse siphon tube axis.

[0018] Step 2: Based on the measurement results, calculate the parameters to select a reasonable number of modular slide rails, assemble the modular slide rails, and slide the modular slide rails on the bank slope to form a sliding channel for the inlet component;

[0019] Step 3: Weld the base, place the base on the modular slide rail, connect the steel column support to the top surface of the base, and install the pipe splitter at the appropriate position on the transverse siphon pipe.

[0020] Step 4: Modularly assemble the siphon submersible rectifier into a whole. The upper end of the siphon submersible rectifier is connected to the cone pipe through a flange. The top of the cone pipe is welded with the pipe bend. The pipe bend is integrally welded to the transverse siphon pipe to form the siphon water inlet part.

[0021] Step 5: Install the support rod fixing component on the steel column support. The support rod fixing component is inserted into the extension support rod on the side facing the bank slope. Assemble the pulley on the extension support rod near the bank slope. The traction steel wire rope passes through the positioning hole on the extension support rod. The two ends of the traction steel wire rope are guided by passing around the pulleys anchored on both sides of the modular slide rail, so that the entire siphon intake can slide and sink quickly on the modular slide rail.

[0022] Step six: Based on the positioning and sinking depth, the extension support rod can be inserted to a suitable length. Repeat the above steps, and after the water inlet is placed to the predetermined depth, stop the non-drainage sinking and placement construction. Add anchor blocks at the horizontal pipe bank slope to improve the stability of the overall structure.

[0023] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0024] This invention has the advantages of non-water-related installation, requiring no large hoisting equipment, can be implemented without drainage, has a fast assembly speed, is easy and simple to implement, is low-cost, highly efficient, and safer, and can prevent the equipment from touching the bottom, ensuring the smooth installation and operation of the siphon water inlet. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the anti-bottom-touching device for the siphon intake of the present invention;

[0027] Figure 2 This is a schematic diagram of the anti-bottom-touching device for the siphon intake of the present invention from another angle;

[0028] Figure 3 This is a schematic diagram of the base, steel column support, and pipe split structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the extension rod and the rod fixing component of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the base, steel column support, pipe splitter, extension rod, and rod fixing component of the present invention.

[0031] Figure 6 This is a schematic diagram of the pulley structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the modular slide rail structure of the present invention;

[0033] Figure 8 This is a schematic diagram of the extended support structure of the present invention;

[0034] Explanation of reference numerals in the attached drawings: 1. Pipeline splitter; 2. Steel column support; 3. Siphon submersible rectifier; 4. Inlet; 5. Base; 6. Modular slide rail; 7. Extension rod; 8. Rod fixing component; 9. Pulley; 10. Traction wire rope; 11. Tapered pipe; 12. Pipeline bend; 13. Transverse siphon pipe; 14. Dam upstream slope protection; 601. Modular assembly bolt hole; 602. Pulley fixing bolt hole; 701. Socket rod; 702. Second socket; 703. Positioning hole. Detailed Implementation

[0035] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0037] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] like Figure 1-8 As shown, a siphon intake anti-bottom-contact device includes a siphon submersible rectifier 3. The upper part of the siphon submersible rectifier 3 is connected to a transverse siphon pipe 13 via a pipe bend 12. A pipe splitter 1 is installed on the outer side of the transverse siphon pipe 13. A steel column support 2 is installed on the bottom surface of the pipe splitter 1. An extension support 7 is installed on the steel column support 2. A base 5 is installed on the bottom surface of the steel column support 2. A modular slide rail 6 matching the base 5 is installed on the upstream slope 14 of the dam. The modular slide rail 6 is closest to the bank slope. A guide pulley 9 is provided on one side, and a positioning hole 703 for connecting the traction steel wire rope 10 is provided on the extension support rod 7; specifically, the pipe half-section 1 is formed by locking bolts at the mating points of two sets of semi-circular pipe bodies on both sides, and is externally bound to the transverse siphon pipe 13, and is connected and fixed to the steel column support 2 below. The steel column support 2 has sufficient supporting load capacity to stably support the water inlet of the siphon, so that it does not touch the bottom or sink into the silt; the implementation site of this invention is the water-facing slope 14 of the dam, wherein the dam can be a landslide dam or an earth-rock dam.

[0039] like Figure 7 As shown, both ends of the modular slide rail 6 are provided with modular assembly bolt holes 601, and the side wall of the modular slide rail 6 closest to the bank slope is provided with pulley fixing bolt holes 602 for anchoring the pulley 9.

[0040] In one possible implementation, the modular slide rail 6 is configured as a double-track slide rail, which is installed on the upstream slope 14 of the dam. The direction of the double-track slide rail is parallel to the slope surface, and a connector is provided between the double-track slide rails to maintain their parallelism and avoid inconsistencies in height between the two tracks caused by uneven slope surface. In use, the modular slide rail 6 can be extended as needed according to the dam slope angle, the predetermined sinking position elevation of the siphon inlet, and the water depth. Multiple sections can be assembled, and the slide rails can be installed and arranged on the dam bank after assembly. The form and material of the modular slide rail are not limited; other types of slide rails, such as single-track slide rails, can be used.

[0041] like Figure 3As shown, the base 5 includes two parallel square channel steels, which slide along the double-track slide rail. A tubular connector is provided in the center of the inner side of the two square channel steels. The two square channel steels and the tubular connector form an H-shaped base. The steel column support 2 is perpendicularly connected to the tubular connector.

[0042] like Figure 4 As shown, the steel column support pier 2 is provided with a support rod fixing component 8. The support rod fixing component 8 includes two semi-circular pipe bodies. The semi-circular pipe bodies are sleeved on the outside of the steel column support pier 2 and locked in place by bolts. The extension support rod 7 is inserted into the middle position of the semi-circular pipe body facing the bank slope.

[0043] like Figure 8 As shown, one end of the extension rod 7 is provided with a socket rod 701, and the other end of the extension rod 7 is provided with a second socket 702. The socket rod 701 of one extension rod 7 is inserted into the second socket 702 of the adjacent extension rod 7 and locked in place by bolts. The semi-circular pipe body is provided with a first socket that matches the socket rod 701. The positioning hole 703 is provided on the extension rod 7 at one end near the second socket 702. In use, multiple extension rods 7 are assembled and connected by sockets to form a long rod.

[0044] The aforementioned siphon submersible rectifier 3 is prior art, and its specific structure has been disclosed in Chinese Patent Application No. 202110402699.4, entitled "Emergency Release Siphon Submersible Rectifier for Landslide Dam Lakes." Its specific structure will not be described in detail here. The siphon submersible rectifier 3 is a key device for siphon water intake. An opening is provided on the side of the bottom frame of the siphon submersible rectifier 3 as the water inlet 4. The water inlet 4 must have sufficient submersion depth to ensure the normal operation of siphon water intake. The water inlet 4 should not touch the bottom and should avoid siltation at the bottom of the reservoir to prevent blockage of the water inlet from affecting the efficiency of siphon water intake. It should be equipped with a bottom-touching device.

[0045] A tapered tube 11 is provided between the siphon submersible rectifier 3 and the pipe bend 12. The bottom end of the tapered tube 11 is connected to the flange at the upper end of the siphon submersible rectifier 3, and the upper end of the tapered tube 11 is welded to the pipe bend 12. If the flange size of the siphon submersible rectifier 3 matches the pipe diameter of the pipe bend 12, it is not necessary to add a tapered tube 11.

[0046] The pipe bend 12 is a 90° bend pipe.

[0047] A method for constructing a siphon inlet anti-bottom-contact device without drainage during sinking is disclosed. This method is used to install the siphon inlet anti-bottom-contact device as described above. The specific construction method is as follows:

[0048] Step 1: Measure the water depth at the inlet 4 on the side of the bottom frame of the siphon submersible rectifier 3, and measure the elevation of the axis of the transverse siphon pipe 13.

[0049] Step 2: Based on the measurement results, calculate the parameters to select a reasonable number of modular slide rails 6, assemble the modular slide rails 6, and slide and deploy the modular slide rails 6 on the bank slope to form a sliding channel for the inlet component;

[0050] Step 3: Weld the base 5, place the base 5 on the modular slide rail 6, connect the steel column support 2 to the top surface of the base 5, and install the pipe splitter 1 at the appropriate position of the transverse siphon pipe 13.

[0051] Step 4: Modularly assemble the siphon submersible rectifier 3 into a whole. The upper end of the siphon submersible rectifier 3 is connected to the cone pipe 11 through a flange. The top of the cone pipe 11 is welded with the pipe bend head 12. The pipe bend head 12 is integrally welded to the transverse siphon pipe 13 to form the siphon water inlet part.

[0052] Step 5: Install the support rod fixing component 8 on the steel column support pier 2. The support rod fixing component 8 is inserted into the extension support rod 7 on the side facing the bank slope. Assemble the pulley 9 on the extension support rod 7 near the bank slope. The traction steel wire rope 10 passes through the positioning hole 703 on the extension support rod 7. The two ends of the traction steel wire rope 10 are respectively guided around the pulley 9 anchored on both sides of the modular slide rail 6, so that the entire siphon intake can slide and sink quickly on the modular slide rail 6.

[0053] Step six: Based on the positioning and sinking depth, the extension rod 7 can be inserted to a suitable length. Repeat the above steps, and after the inlet 4 is placed to the predetermined depth, stop the non-drainage sinking and placement construction. Add a pier at the horizontal pipe bank slope to improve the stability of the overall structure.

[0054] In step six, after the water intake component has slid into place, it needs to be limited, which can be done by setting up anchor blocks on the dam bank.

[0055] This invention utilizes a pipe splitter, steel column supports, and a base to form a supporting structure. This structure lifts the siphon submersible rectifying device and the transverse siphon pipe as a whole, suspending the water intake portion of the inlet without touching the bottom. The lower base of the supporting structure, through direct contact with modular slide rails, allows for low-friction sliding movement, avoiding direct contact with the dam slope accumulation. This enables the entire water intake structure to smoothly enter the reservoir and slide to a predetermined position with the required submersion depth. For the sinking process during the overall sliding movement, an extension rod and a pulley structure fixed to it are installed. The structure is gradually and stably lowered by traction steel wire ropes. The bottom modular slide rails and extension rods can be lengthened and assembled according to actual needs, meeting the specific requirements of different sites.

[0056] This invention provides a reservoir water siphon intake anti-bottom-contact device and its non-drainage sinking construction method that is simple to construct, reduces installation time and on-site personnel, and meets the requirements of emergency harsh construction environments. It does not require complicated construction steps, and can easily and quickly install and deploy large-scale siphon submersible rectification water intake devices. It does not rely on large hoisting equipment, does not require drainage, and can meet the construction device and method for the operation of the overall vacuum jet siphon system.

[0057] This invention is applicable to landslide-dammed lakes or earth-rock dams with gentle slopes and impassable roads, where hoisting machinery cannot access the dam, and solves the engineering construction problem of siphon intakes without drainage, rapid sinking without touching the bottom. By using modular sliding rails along the dam slope for stable sliding, the siphon intake is guided to sink rapidly to the predetermined water intake elevation, effectively saving construction time and reducing installation difficulty, thereby enabling rapid assembly of the intake of high-power siphon emergency discharge equipment.

[0058] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A siphon draw venturi bottoming out prevention device, characterized by: The siphon submersible rectifier (3) is connected to the transverse siphon pipe (13) above the siphon submersible rectifier (3) via a pipe bend (12). A pipe split (1) is provided on the outside of the transverse siphon pipe (13). A steel column support (2) is provided on the bottom surface of the pipe split (1). An extension rod (7) is provided on the steel column support (2). A base (5) is provided on the bottom surface of the steel column support (2). A modular slide rail (6) matching the base (5) is provided on the water-facing slope (14) of the dam. A guide pulley (9) is provided on the side of the modular slide rail (6) closest to the bank slope. A positioning hole (703) for connecting the traction steel wire rope (10) is provided on the extension rod (7). The steel column support (2) is provided with a support rod fixing component (8), which includes two semi-circular pipe bodies. The semi-circular pipe bodies are sleeved on the outside of the steel column support (2) and locked in place by bolts. The extension support rod (7) is inserted into the middle position of the semi-circular pipe body facing the bank slope. One end of the extension rod (7) is provided with a socket rod (701), and the other end of the extension rod (7) is provided with a second socket (702). A socket rod (701) of the extension rod (7) is inserted into the second socket (702) of the adjacent extension rod (7) and locked in place by bolts. The semi-circular pipe body is provided with a first socket that matches the socket rod (701). The positioning hole (703) is provided on the extension rod (7) at one end near the second socket (702). A tapered tube (11) is provided between the siphon submersible rectifier (3) and the pipe bend (12). The bottom end of the tapered tube (11) is connected to the flange at the upper end of the siphon submersible rectifier (3), and the upper end of the tapered tube (11) is welded to the pipe bend (12).

2. The siphon takeoff anti-bottoming device of claim 1, wherein: Both ends of the modular slide rail (6) are provided with modular assembly bolt holes (601), and the side wall of the modular slide rail (6) closest to the bank slope is provided with pulley fixing bolt holes (602) for anchoring the pulley (9).

3. The siphon takeoff anti-bottoming device of claim 2, wherein: The modular slide rail (6) is configured as a double slide rail, which is set on the water-facing slope protection (14) of the dam. The direction of the double slide rail is parallel to the slope surface, and a connecting piece is provided between the double slide rails.

4. The siphon takeoff anti-bottoming device of claim 3, wherein: The base (5) includes two parallel square channel steels, which slide along the double slide rail. A tubular connector is provided in the center of the inner side of the two square channel steels. The two square channel steels and the tubular connector form an H-shaped base. The steel column support (2) is perpendicularly connected to the tubular connector.

5. The siphon takeoff anti-bottoming device of claim 1, wherein: The bottom frame of the siphon submersible rectifier (3) is provided with an inlet (4).

6. The siphon takeoff anti-bottoming device of claim 1, wherein: The pipe bend (12) is a 90° bend pipe.

7. A method for non-draining sinking construction of a siphon water outlet anti-bottom-touching device, characterized in that: The specific construction method for installing the siphon intake anti-bottom-contact device as described in any one of claims 1-6 using this construction method is as follows: Step 1: Measure the water depth at the inlet (4) on the side of the bottom frame of the siphon submersible rectifier (3), and measure the elevation of the axis of the transverse siphon pipe (13). Step 2: Based on the measurement results, calculate the parameters to select a reasonable number of modular slide rails (6), assemble the modular slide rails (6), and slide the modular slide rails (6) on the bank slope to form a sliding channel for the inlet component; Step 3: Weld the base (5), place the base (5) on the modular slide rail (6), connect the steel column support (2) to the top surface of the base (5), and install the pipe splitter (1) at the appropriate position of the transverse siphon (13). Step 4: Modularly assemble the siphon submersible rectifier (3) into a whole. The upper end of the siphon submersible rectifier (3) is connected to the cone pipe (11) through a flange. The top of the cone pipe (11) is welded with the pipe bend (12). The pipe bend (12) is integrally welded with the transverse siphon pipe (13) to form the siphon water inlet part. Step 5: Install the support rod fixing component (8) on the steel column support (2). The support rod fixing component (8) is inserted into the extension support rod (7) on the side facing the bank slope. Assemble the pulley (9) on the extension support rod (7) near the bank slope. The traction steel wire rope (10) passes through the positioning hole (703) on the extension support rod (7). The two ends of the traction steel wire rope (10) are guided by the pulley (9) anchored on both sides of the modular slide rail (6), so that the entire siphon intake can slide and sink quickly on the modular slide rail (6). Step 6: According to the positioning and sinking depth, the extension rod (7) is inserted to a suitable length. Repeat the above steps, and after the water inlet (4) is placed to the predetermined depth, stop the non-drainage sinking and placement construction. Add a pier at the horizontal pipe bank slope to improve the stability of the overall structure.

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