High-water-head asymmetric series-connection water diversion type ship lock auxiliary water drainage system

Abstract

The invention belongs to the technical field of navigation ship lock hydraulic structure design, and particularly relates to a high-water-head asymmetric series-connection water diversion type ship lock auxiliary drainage system. The asymmetric series water diversion type ship lock auxiliary drainage system comprises a water inlet hole, a connecting gallery, an auxiliary drainage gallery, an auxiliary drainage access door, an auxiliary drainage working door, a water outlet hole and a drainage gate hole which are communicated with the tail end of an original water conveying and drainage system in a lock chamber. The water inlet holes are connected in series through the connecting gallery, the U-shaped auxiliary drainage gallery is located on one side pier, the access door is arranged on the upstream portion in the gallery, the working door is arranged on the downstream portion in the gallery, the water outlet holes are located at the tail end of the downstream portion of the auxiliary drainage gallery, and drainage water flows out, enters the open trench, located on the downstream portion of the miter gate, of the lower lock head bottom plate and is drained into the downward approach channel through the drainage gate holes after energy dissipation. According to the method, a solution capable of comprehensively considering the lock chamber structure size, the water delivery and drainage efficiency, the downward approach channel flow state and the water body condition of the high-water-head ship lock is obtained at low cost, and the method has high popularization value.

Description

Technical Field

[0001] The invention belongs to the technical field of design of hydraulic structures for navigation ship locks, and in particular relates to an auxiliary water discharge system for a high-head asymmetric series water diversion type ship lock. Background Art

[0002] The ship lock is a navigation structure set up for ships to pass through the concentrated water level difference in the channel. It is widely used in inland waterways due to its large passing capacity. Ships passing through the lock need to go through the processes of entering and exiting the lock chamber, opening and closing the gate, and discharging water from the lock chamber. When the ship lock discharges water, the flow rate is large, the water level in the lower approach channel is low, the water-passing section is small, and the length is long. The long wave of water discharge can easily cause the flow state in the channel to deteriorate. The solution is generally that the discharge system discharges half of the total discharge to the lower approach channel after energy dissipation, and the other half is discharged into the downstream river channel to reduce the impact of the lock chamber discharge on the channel flow state.

[0003] For high-head ship locks, the flow rate during a water discharge process is larger and the water level of the lower navigation channel is lower. Even if part of the water is discharged into the channel, it will worsen the flow state of the channel and affect the navigation of ships. According to the current layout of the existing ship lock water discharge system, it is still difficult to achieve dispersed discharge on demand without affecting the water discharge time. The most economical and effective measure is to discharge all the total discharge into the side river. Although this can completely avoid the adverse effect of the lock chamber discharge on the flow state of the lower navigation channel and reduce the reciprocating flow siltation of the lower navigation channel, the lack of flow discharge will lead to insufficient hydrodynamic conditions of the lower navigation channel water body and poor flow, causing deterioration. At the same time, in the dry season, the high-head ship lock has a large difference between the outlet water level of the discharge box culvert and the downstream navigation channel gate area. The water level difference between the inside and outside of the miter gate at the lower lock head using the inertial over-discharge method may not meet the static water opening conditions of the miter gate. It is still necessary to consider certain auxiliary discharge methods to avoid affecting the navigation efficiency of the ship lock.

[0004] After searching, it is found that there is a lack of a relatively complete water transfer and discharge system solution that can comprehensively consider the structural dimensions of the high-head ship lock chamber, water transfer and discharge efficiency, flow state of the lower approach channel and water conditions. Summary of the invention

[0005] The object of the present invention is to overcome the above-mentioned problems existing in the prior art and to provide a high-head asymmetric series water-diversion type ship lock auxiliary water discharge system.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] The present invention provides an auxiliary water discharge system of a high-head asymmetric series water diversion type ship lock, comprising a water inlet hole connected with the end of the original water delivery and discharge system in the lock chamber, a connecting corridor, an auxiliary water discharge corridor, an auxiliary water discharge inspection door, an auxiliary water discharge working door, a water outlet hole and a water discharge grid hole; the connecting corridor is used to connect the various water inlets in series, the auxiliary water discharge corridor is arranged in a U shape on one side pier, one end of the auxiliary water discharge corridor is connected to the connecting corridor, an auxiliary water discharge inspection door is arranged upstream in the middle corridor of the auxiliary water discharge corridor, an auxiliary water discharge working door is arranged downstream in the middle corridor of the auxiliary water discharge corridor, the water outlet hole is located at the downstream end of the auxiliary water discharge corridor, and the discharged water body flows out and enters the open ditch located downstream of the miter gate on the bottom plate of the lower lock head, and is discharged from the water discharge grid hole to the lower navigation channel after energy dissipation.

[0008] Furthermore, in the above-mentioned high-head asymmetric series water-diversion ship lock auxiliary discharge system, the water inlet utilizes the existing water delivery and discharge corridor to divert water, and there is no need to set up a new water inlet, which does not affect the flow state of the water body in the lock chamber.

[0009] Furthermore, in the above-mentioned high-head asymmetric series water-diversion type ship lock auxiliary discharge system, the water inlet holes are asymmetrically arranged in the lock chamber according to the layout pattern of the discharge corridor, and the water bodies are gathered into the auxiliary discharge corridor after being connected in series through the corridor. The auxiliary discharge corridor and the valve well are compactly arranged to save space.

[0010] Furthermore, in the above-mentioned high-head asymmetric tandem water-diversion ship lock auxiliary discharge system, the auxiliary discharge working gate is operated by a hydraulic gate hoist, and the hydraulic gate hoist is controlled locally and centrally, and can be fully or partially opened. The gate opening parameters can be set in combination with the operating conditions to achieve coordinated functions such as shortening the water delivery and discharge time and improving the flow state of the lower navigation channel.

[0011] Furthermore, in the above-mentioned high-head asymmetric series water-diversion ship lock auxiliary discharge system, for high-head ship locks, when the head difference between the upstream and downstream of the lower gate miter gate is large, the gate can be dispatched during the dry season and the auxiliary discharge corridor can be used to quickly meet the static water opening and closing conditions of the miter gate.

[0012] Furthermore, in the above-mentioned high-head asymmetric series water-diversion ship lock auxiliary discharge system, the water outlet and the discharge grid hole are located below the elevation of the bottom plate of the lower lock head, and do not affect the water depth of the lock chamber threshold.

[0013] Furthermore, in the above-mentioned high-head asymmetric series water-diversion ship lock auxiliary discharge system, the water inlet hole is about 1.5 to 2.0 times the inlet bottom width of the end of the original water delivery and discharge corridor, ensuring that there are sufficient water outlet gaps or water outlet holes on the downstream side of the water inlet hole to divert water. The elevation of the water inlet hole is adapted to the original water delivery and discharge system in the lock chamber, avoiding the main discharge channel or reserving a sufficient safety distance.

[0014] Furthermore, in the above-mentioned high-head asymmetric series water-diversion ship lock auxiliary discharge system, the size and number of the water inlet and discharge grid holes are determined by comprehensive analysis based on the miter gate water retaining head, water discharge volume, open ditch energy dissipation effect and the requirements for flow stability in the lower diversion channel.

[0015] The beneficial effects of the present invention are:

[0016] The present invention utilizes the end of the branch water delivery and drainage corridor in the original lock chamber to divert water, and asymmetrically arranges an independent auxiliary drainage corridor on one side of the lock chamber, which is led from the side wall to the downstream groove of the miter gate through the corridor, and then discharged into the lower navigation channel after energy dissipation. The arrangement of the present invention fully utilizes the branch corridor of the original water delivery and drainage system, has a simple structure, compact layout, and convenient construction, which ensures the navigation requirements of ships in the lower navigation channel and the requirements of the water discharge volume, can be effectively combined with the lock chamber, does not occupy additional space, and shortens the water delivery and drainage time; the present invention obtains a solution that can comprehensively consider the structural size of the high-head ship lock chamber, water delivery and drainage efficiency, flow state of the lower navigation channel and water body conditions at a relatively low cost, and has a strong promotion value.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the plane layout of the present invention;

[0020] Figure 2 It is a longitudinal sectional schematic diagram of the present invention;

[0021] In the accompanying drawings, the reference numerals of the various components are as follows:

[0022] 01, 02—water inlet, 03—connecting corridor, 04—auxiliary drainage corridor, 05—auxiliary drainage inspection door, 06—auxiliary drainage working door, 07—water outlet, 08—drainage grid hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, this embodiment provides a high-head asymmetric series water diversion auxiliary water discharge system, including a water inlet 01, a water inlet 02, a connecting corridor 03, an auxiliary water discharge corridor 04, an auxiliary water discharge inspection door 05, an auxiliary water discharge working door 06, a water outlet 07, and a water discharge grid hole 08; the water inlet 01 and the water inlet 02 are connected to the end of the water delivery and discharge system in the original gate chamber; the connecting corridor 03 connects the water inlet 01 and the water inlet 02 in series; the auxiliary water discharge corridor 04 is located in a side pier, arranged in a U shape, and connects the water inlet 01, the water inlet 02 and the water outlet 07; The auxiliary water discharge inspection gate 05 is located upstream of the auxiliary water discharge working gate 06. It is used for the inspection of the working valve and is operated by a temporary opening and closing device through a hoist. In order to store the auxiliary water discharge inspection gate, a gate warehouse is set on the top of the side pier. The inspection gate is stored in the gate warehouse when it is not working; the auxiliary water discharge working gate 06 is connected to the hydraulic opening and closing machine through a hoist for operation; the water outlet 07 is located at the downstream end of the auxiliary water discharge corridor 04. After the water from the lower discharge body flows out, it enters the open ditch located downstream of the miter gate on the bottom plate of the lower gate head. After energy dissipation, it is discharged from the discharge grid hole 08 to the lower navigation channel.

[0025] In this embodiment, the water inlet holes 01 and 02 are located at the end of the original drainage branch corridor. In order to ensure smooth water flow in the corridor, the water inlet holes are about 1.5 to 2.0D away from the end of the original drainage corridor. The inlet bottom width ensures that there are sufficient water outlet gaps or water outlet holes on the downstream side of the water inlet holes to divert water. The elevation of the water inlet holes is adapted to the original drainage system in the gate chamber, avoiding the main drainage channel or reserving a sufficient safety distance.

[0026] In this embodiment, the sizes and numbers of water inlet holes 01 and 02 are determined through comprehensive analysis based on the miter gate water retaining head, water discharge volume, open ditch energy dissipation effect and the requirements for flow stability in the lower navigation channel.

[0027] In this embodiment, the sizes of the connecting gallery 03, the auxiliary drainage gallery 04 and the water outlet 07 are substantially the same as those of the water inlet.

[0028] In this embodiment, the size and number of the spillway grille holes 08 are determined through comprehensive analysis based on the miter gate water retaining head, water delivery and discharge volume, open ditch energy dissipation effect and the requirements for flow stability in the lower approach channel.

[0029] In this embodiment, the auxiliary water discharge corridor 04, the auxiliary water discharge inspection door 05, and the auxiliary water discharge working door 06 are arranged in coordination with functional buildings such as the lock control building, the miter gate opening and closing machine room, and the fire pump room.

[0030] A specific implementation process of this embodiment is:

[0031] 1) The water level in the lock chamber is consistent with the water level in the lower pilot channel, the miter gates at the upper and lower locks are closed, and the lock chamber is filled with water. At this time, the auxiliary discharge working gate 06 is closed, and the original water delivery and discharge system in the lock chamber is filled with water normally;

[0032] 2) The water level in the lock chamber is consistent with the water level in the upper navigation channel, the miter gates at the upper and lower locks are closed, the lock chamber is discharged, the auxiliary water discharge working gate 06 is opened, and the original water delivery and discharge system in the lock chamber is discharged normally. At this time, part of the water passes through the water inlet hole 01, the water inlet hole 02, the connecting corridor 03, the auxiliary water discharge corridor 04, and the water outlet hole 07, and then discharges from the water discharge grid hole 08 to the lower navigation channel after energy dissipation. After the static water gate opening condition is met, the miter gate at the lower lock is opened;

[0033] 3) The auxiliary water discharge inspection door 05 is closed, the downstream floating inspection door is closed, and the auxiliary water discharge working door 06 is inspected.

[0034] The present invention utilizes the end of the branch water delivery and drainage corridor in the original lock chamber to divert water, and asymmetrically arranges an independent auxiliary drainage corridor on one side of the lock chamber, which is led from the side wall to the downstream groove of the miter gate through the corridor, and then discharged into the lower navigation channel after energy dissipation. The arrangement of the present invention fully utilizes the branch corridor of the original water delivery and drainage system, has a simple structure, compact layout, and convenient construction, which ensures the navigation requirements of ships in the lower navigation channel and the requirements of the water discharge volume, can be effectively combined with the lock chamber, does not occupy additional space, and shortens the water delivery and drainage time; the present invention obtains a solution that can comprehensively consider the structural size of the high-head ship lock chamber, water delivery and drainage efficiency, flow state of the lower navigation channel and water body conditions at a relatively low cost, and has a strong promotion value.

[0035] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-head asymmetric series water diversion type ship lock auxiliary water discharge system, characterized in that: It includes an inlet hole connected to the end of the water delivery and discharge system in the original lock chamber, a connecting corridor, an auxiliary water discharge corridor, an auxiliary water discharge inspection door, an auxiliary water discharge working door, a water outlet hole and a water discharge grid hole; the connecting corridor is used to connect the various water inlets in series, the auxiliary water discharge corridor is arranged in a U shape on one side pier, one end of the auxiliary water discharge corridor is connected to the connecting corridor, an auxiliary water discharge inspection door is provided upstream in the middle corridor of the auxiliary water discharge corridor, an auxiliary water discharge working door is provided downstream in the middle corridor of the auxiliary water discharge corridor, the water outlet hole is located at the downstream end of the auxiliary water discharge corridor, and the discharged water flows out and enters the open ditch located downstream of the miter gate on the bottom plate of the lower lock head, and after energy dissipation, it is discharged from the water discharge grid hole to the lower navigation channel.

2. The high-head asymmetric series water-diversion ship lock auxiliary water discharge system according to claim 1 is characterized in that: The water inlet utilizes the existing water delivery and discharge corridor to draw water, and there is no need to set up a new water inlet, which does not affect the flow state of the water body in the gate chamber.

3. The high-head asymmetric series water-diversion ship lock auxiliary water discharge system according to claim 1 is characterized in that: The water inlet holes are asymmetrically arranged in the gate chamber according to the layout of the drainage gallery. The water inlet holes are connected in series through the connecting gallery to collect water into the auxiliary drainage gallery. The auxiliary drainage gallery and the valve well are compactly arranged to save space.

4. The high-head asymmetric series water-diversion shiplock auxiliary water discharge system according to claim 1 is characterized in that: The auxiliary water discharge working door is operated by a hydraulic gate hoist, which is controlled locally and centrally, and can be opened completely or partially.

5. The high-head asymmetric series water-diversion shiplock auxiliary water discharge system according to claim 1 is characterized in that: For high-head ship locks, when the head difference between the upstream and downstream of the miter gate at the lower lock head is large, the gate can be dispatched during the dry season and the auxiliary discharge corridor can be used to quickly meet the conditions for opening and closing the miter gate in static water.

6. The high-head asymmetric series water-diversion shiplock auxiliary water discharge system according to claim 1 is characterized in that: The water outlet hole and the drain grid hole are located below the elevation of the bottom plate of the lower gate head and do not affect the water depth of the gate chamber threshold.

7. The high-head asymmetric series diversion type ship lock auxiliary water discharge system according to claim 1 is characterized in that: The water inlet hole is about 1.5 to 2.0 times the inlet bottom width from the end of the original water delivery and drainage corridor to ensure that there are sufficient water outlet gaps or water outlet holes on the downstream side of the water inlet hole to divert water. The elevation of the water inlet hole is adapted to the original water delivery and drainage system in the gate chamber, avoiding the main drainage channel or reserving a sufficient safety distance.

8. The high-head asymmetric series water-diversion shiplock auxiliary water discharge system according to claim 1 is characterized in that: Based on the requirements of the miter gate water retaining head, water discharge volume, open ditch energy dissipation effect and flow stability of the lower approach channel, a comprehensive analysis is conducted to determine the size and number of water inlet holes and spillway holes.

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