CN214656857U

CN214656857U - Energy dissipation, corrosion reduction and flood drainage structure for flood discharge tunnel

Info

Publication number: CN214656857U
Application number: CN202023246372.2U
Authority: CN
Inventors: 康亚亭; 唐瀚
Original assignee: Hebei Research Institute of Investigation and Design of Water Conservancy and Hydropower
Current assignee: Hebei Institute of Investigation and Design of Water Conservancy and Hydropower Group Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-09
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a be used for flood discharge hole energy dissipation erosion reduction flood discharge structure, including downcomer, stilling chamber and conveyer pipe, the top of stilling chamber is provided with the downcomer, the inner wall cover of downcomer is equipped with PP buffering endotheca, the indoor stilling step that is provided with of stilling, the conveyer pipe is connected through the butt joint board to the one end of stilling chamber, the top welding of conveyer pipe has the support frame, the electric hydraulic cylinder is installed through link and bolt in the top of support frame, the one end of support frame is provided with the clearance mouth, magnet is installed through the fixing base to the one end of clearance mouth, the internal surface layer of conveyer pipe is provided with the corrosion-resistant layer, one end is provided with L shape filter plate in the conveyer pipe. This novel be used for flood discharge hole energy dissipation to lose and discharge flood structure function is various, and the energy dissipation effect is showing, and the production of being convenient for has satisfied the multiple demand in the use, is fit for extensively using widely.

Description

Energy dissipation, corrosion reduction and flood drainage structure for flood discharge tunnel

Technical Field

The utility model relates to a flood discharge technical field, in particular to be used for flood discharge hole energy dissipation to lose drainage flood discharge structure.

Background

In hydraulic and hydroelectric engineering, a non-pressure tunnel is a frequently used water outlet structure. Along with the construction of large-scale hydraulic and hydroelectric hub engineering, the discharge capacity of a flood discharge tunnel is remarkably increased, a flood discharge head is also linearly raised, and the problem of high flow rate is inevitably brought by the high flow capacity and the high water head, so that a water discharge building faces a great cavitation risk.

Patent number CN201821754744.2 discloses a be used for flood discharge hole energy dissipation and lose reduction flood discharge structure, through energy dissipation and lose the section water jump energy dissipation and have the section to transfer the flow after, the rivers velocity of flow that gets into the section of flood discharge hole downstreams will show and reduce to the realization reduces the in-tunnel velocity of flow, reduces the cavitation erosion risk that the flood discharge hole wall arouses because of the high velocity of flow, and this structure molding is simple, and the energy dissipation effect is outstanding, has great using value.

The device flood discharge tunnel energy dissipation subtracts loses the flood discharge structure and exists following weak point: 1. the existing energy dissipation and corrosion reduction flood discharge structure of the flood discharge tunnel has an unobvious energy dissipation effect and cannot protect the inner wall of a pipeline; 2. the existing energy dissipation, corrosion reduction and flood drainage structure for the flood discharge tunnel cannot remove dirt, and the inner wall of a pipeline cannot play a corrosion-resistant effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a be used for flood discharge hole energy dissipation to lose drainage flood structures, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a be used for flood discharge hole energy dissipation erosion reduction flood discharge structure, includes downcomer, stilling chamber and conveyer pipe, the top of stilling chamber is provided with the downcomer, the inner wall cover of downcomer is equipped with PP buffering endotheca, the indoor stilling step that is provided with of stilling, the conveyer pipe is connected through the butt joint board to the one end of stilling chamber, the top welding of conveyer pipe has the support frame, the electric hydraulic cylinder is installed through link and bolt in the top of support frame, the one end of support frame is provided with the clearance mouth, magnet is installed through the fixing base to the one end of clearance mouth, the internal surface layer of conveyer pipe is provided with the corrosion-resistant layer, one end is provided with L shape filter plate in the conveyer pipe.

Further, an observation window is installed at the top of the conveying pipe through an installation opening.

Furthermore, the cleaning port is connected with the sealing iron cover through a rotating shaft.

Further, the corrosion-resistant layer is an organic silicon coating, one end of the sealing iron cover is provided with a U-shaped groove, and an output shaft of the electric hydraulic cylinder penetrates through the U-shaped groove.

Further, an output shaft of the electric hydraulic cylinder is connected with the L-shaped filter plate through a bolt.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the PP buffer inner sleeve has higher impact resistance, high mechanical property, toughness, resistance to corrosion of various organic solvents and acid and alkali, good stability and durability.

2. Utilize the power dissipation step to play the effect of buffering energy dissipation, enter into the conveyer pipe after reducing the velocity of flow, utilize L shape filter plate to the impurity in the water body, the dirt filters, avoids causing the jam for a long time, influences flood discharge efficiency.

3. The sealing iron cover is opened and adsorbed on the magnet, the fixing is rapid, the electric hydraulic cylinder is opened to drive the L-shaped filter plate to move upwards, dirt and impurities on the L-shaped filter plate can be conveniently removed, the corrosion-resistant layer is an organic silicon coating, so that the inner surface layer of the conveying pipe is corrosion-resistant, oxidation-resistant, high in coating strength, not easy to peel off and durable.

Drawings

Fig. 1 is the utility model relates to an overall structure schematic diagram that is used for flood discharge hole energy dissipation to lose drainage flood discharging structure.

Fig. 2 is the utility model relates to a corrosion-resistant layer structure sketch map for flood discharge tunnel energy dissipation subtracts and loses flood discharge structure.

In the figure: 1. a butt plate; 2. a force eliminating step; 3. a force eliminating chamber; 4. a PP buffer inner sleeve; 5. a sewer pipe; 6. a viewing window; 7. a support frame; 8. a connecting frame; 9. an electric hydraulic cylinder; 10. a fixed seat; 11. a magnet; 12. cleaning the opening; 13. sealing the iron cover; 14. an L-shaped filter plate; 15. a corrosion-resistant layer; 16. a delivery pipe.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-2, the energy dissipation, corrosion reduction and flood drainage structure for the flood discharge tunnel comprises a sewer pipe 5, a stress relief chamber 3 and a conveying pipe 16, wherein the sewer pipe 5 is arranged at the top of the stress relief chamber 3, a PP buffer inner sleeve 4 is sleeved on the inner wall of the sewer pipe 5, a stress relief step 2 is arranged in the stress relief chamber 3, one end of the stress relief chamber 3 is connected with the conveying pipe 16 through a butt joint plate 1, a support frame 7 is welded at the top of the conveying pipe 16, an electric hydraulic cylinder 9 is installed at the top end of the support frame 7 through a connecting frame 8 and a bolt, a cleaning port 12 is arranged at one end of the support frame 7, a magnet 11 is installed at one end of the cleaning port 12 through a fixing seat 10, a corrosion resistant layer 15 is arranged on the inner surface layer of the conveying pipe 16, and an L-shaped filter plate 14 is arranged at one end in the conveying pipe 16.

Wherein, the top of the conveying pipe 16 is provided with an observation window 6 through a mounting hole.

In this embodiment, as shown in fig. 1, the water in the transport pipe 16 can be observed conveniently.

Wherein, the cleaning port 12 is connected with a sealing iron cover 13 through a rotating shaft.

The corrosion-resistant layer 15 is an organic silicon coating, one end of the sealing iron cover 13 is provided with a U-shaped groove, and the output shaft of the electric hydraulic cylinder 9 penetrates through the U-shaped groove.

In this embodiment, as shown in fig. 2, the corrosion-resistant layer 15 is an organic silicon coating, so that the inner surface of the conveying pipe 16 is corrosion-resistant, oxidation-resistant, high in strength, not easy to peel off, and durable.

Wherein, the output shaft of the electric hydraulic cylinder 9 is connected with an L-shaped filter plate 14 through a bolt.

In this embodiment, as shown in fig. 1, the electric hydraulic cylinder 9 is opened to drive the L-shaped filter plate 14 to move upward, so that dirt and impurities on the L-shaped filter plate 14 can be removed conveniently.

It should be noted that the utility model relates to an energy dissipation, erosion reduction and flood drainage structure for flood discharge hole, when in operation, the water flows into the dissipation chamber 3 from the downcomer 5, the PP buffering inner sleeve 4 is used, the elasticity is high, the buffering effect is good, the impact of the water on the inner wall of the downcomer 5 is reduced, the service life of the downcomer 5 is prolonged, the PP buffering inner sleeve 4 has higher impact resistance, the mechanical property is strong, the PP buffering inner sleeve is resistant to various organic solvents and acid-base corrosion, the stability is good, the PP buffering inner sleeve is durable, the dissipation step 2 is used for buffering and energy dissipation, the PP buffering inner sleeve enters the conveying pipe 16 after the flow speed is reduced, the L-shaped filter plate 14 is used for filtering impurities and dirt in the water, the blockage caused by a long time is avoided, the flood drainage efficiency is influenced, the sealing iron cover 13 is opened and the sealing iron cover 13 is adsorbed on the magnet 11, the quick fixation is realized, the electric hydraulic cylinder 9 is opened to drive the L-shaped filter plate 14 to move upwards, dirt and impurities on the L-shaped filter plate 14 can be conveniently removed, and the corrosion-resistant layer 15 is an organic silicon coating, so that the inner surface layer of the conveying pipe 16 is corrosion-resistant and oxidation-resistant, has high coating strength, is not easy to peel off, and is durable.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a be used for flood discharge hole energy dissipation to lose and discharge flood structure, includes downcomer (5), power dissipation room (3) and conveyer pipe (16), its characterized in that: a sewer pipe (5) is arranged at the top of the stilling chamber (3), and a PP (polypropylene) buffer inner sleeve (4) is sleeved on the inner wall of the sewer pipe (5); a force eliminating step (2) is arranged in the force eliminating chamber (3), one end of the force eliminating chamber (3) is connected with a conveying pipe (16) through a butt plate (1), a supporting frame (7) is welded at the top of the conveying pipe (16), and an electric hydraulic cylinder (9) is installed at the top end of the supporting frame (7) through a connecting frame (8) and a bolt; the one end of support frame (7) is provided with clearance mouth (12), magnet (11) are installed through fixing base (10) to the one end of clearance mouth (12), the internal surface layer of conveyer pipe (16) is provided with corrosion-resistant layer (15), one end is provided with L shape filter plate (14) in conveyer pipe (16).

2. An energy-dissipating, corrosion-reducing and flood-draining structure for flood discharging tunnels according to claim 1, wherein: and the top of the conveying pipe (16) is provided with an observation window (6) through a mounting hole.

3. An energy-dissipating, corrosion-reducing and flood-draining structure for flood discharging tunnels according to claim 1, wherein: the cleaning opening (12) is connected with a sealing iron cover (13) through a rotating shaft.

4. A structure for dissipating energy, reducing corrosion and discharging floods from a flood discharge hole according to claim 3, wherein: the corrosion-resistant layer (15) is an organic silicon coating, one end of the sealing iron cover (13) is provided with a U-shaped groove, and an output shaft of the electric hydraulic cylinder (9) penetrates through the U-shaped groove.

5. An energy-dissipating, corrosion-reducing and flood-draining structure for flood discharging tunnels according to claim 1, wherein: the output shaft of the electric hydraulic cylinder (9) is connected with an L-shaped filter plate (14) through a bolt.