CN111254901A - A water storage tank and control system for improving water saving rate of ship lock - Google Patents

Abstract

The invention discloses a water storage pool and a control system for improving the water saving rate of a ship lock, which comprise a water storage pool and a control system, wherein the water storage pool is provided with a water delivery valve, the water delivery valve is connected with one end of a water delivery gallery, the other end of the water delivery gallery is connected to a water delivery port at the bottom of a lock chamber, the bottom of the water storage pool is fixedly provided with a plurality of air bags, the water storage pool is provided with an inflator pump for inflating and deflating the air bags, the control system comprises a monitoring module and a control module, the monitoring module comprises a flow rate monitoring module, a water level monitoring module and a pressure monitoring module, the flow rate monitoring module is arranged at the water delivery port, the water level monitoring module is arranged on the side wall of the lock chamber, the pressure monitoring module is arranged inside the air bags, the control module is connected with the monitoring module. The water storage tank and the control system for improving the water saving rate of the ship lock greatly improve the water saving rate, reduce the water consumption during the operation of the ship lock and effectively avoid the waste of water resources.

Description

A water storage tank and control system for improving water saving rate of ship lock

technical field

The invention relates to a water storage tank and a control system for improving the water saving rate of a ship lock, and relates to the technical field of water transportation and navigation buildings.

Background technique

Ship lock is a widely used navigation building, mostly built on rivers and canals. According to the principle of the connecting device, the ship lock controls the water filling and discharging through the opening and closing of the gate, overcomes the water level difference between the upstream and downstream, and realizes the smooth navigation of the ship between the upstream and downstream. With the increase of navigation volume, the water volume required for navigation also increases, and the amount of water released due to navigation is astonishing. Therefore, how to reduce the water consumption during the operation of the ship lock is one of the important issues of water transportation engineering.

In the prior art, the method of attaching a water storage tank to a ship lock is often used to save water. Theoretically, the upper limit of the water saving rate of a ship lock with a single-stage water storage tank is 33.3%; although the multi-stage water storage tank attached to the ship lock can improve the water saving rate of the ship lock, it is expensive and limited by site conditions, and there are few engineering applications. Therefore, how to effectively save water with low investment under the conditions of shipping is one of the important issues in water transportation projects.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a water storage tank and a control system for improving the water saving rate of the ship lock which can reduce the water consumption during the operation of the ship lock and effectively avoid the waste of water resources.

In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is:

A water storage tank and a control system for improving the water saving rate of a ship lock, including a water storage tank and a control system, a water delivery valve is arranged on the water storage tank, the water delivery valve is connected with one end of a water delivery corridor, and the The other end of the water conveyance gallery is connected to the water conveyance port at the bottom of the lock chamber, a plurality of airbags are fixed at the bottom of the water storage tank, and an air pump for inflating and deflating the airbags is arranged on the water storage tank. The control system includes: A monitoring module and a control module, the monitoring module includes a flow rate monitoring module, a water level monitoring module and a pressure monitoring module, the flow rate monitoring module is arranged at the water delivery port, and the water level monitoring module is arranged at the side wall of the lock chamber Above, the pressure monitoring module is arranged inside the airbag, the control module is connected with the monitoring module, the control module includes an inflation and deflation control module and a valve control module, and the inflation and deflation control module is used to control the inflation pump The opening and closing and output power of the valve control module are used to control the opening and closing of the water delivery valve.

The water storage tank is a rectangular parallelepiped, and the horizontal area of the water storage tank is the same as that of the lock chamber.

The bottom elevation of the storage tank is the same as the downstream water level, and the depth of the storage tank is greater than 3/4 of the maximum water level difference between upstream and downstream; the maximum volume of the airbag after inflation is greater than 1/2 of the water volume of the lock chamber.

The bottom of the airbag is provided with a connecting rope, the bottom of the water storage tank is provided with a connecting ring, and the airbag and the bottom of the water storage tank are fixedly connected to the connecting ring through the connecting rope.

The air pump and the air bag are connected by an air delivery conduit, and the gas delivery conduit is fixed on the side wall of the water storage tank with a pipe clip.

The control module is connected to the motor, and the control module supplies power to the monitoring module.

The control module includes a memory, a comparator and an amplifier that are connected in sequence, the comparator is respectively connected to the flow rate monitoring module, the water level monitoring module and the pressure monitoring module, and the amplifier is connected to the comparator, the charging and discharging control module and the pressure monitoring module. The valve control module is connected.

Beneficial effects of the present invention: The water storage tank and control system for improving the water saving rate of the ship lock provided by the present invention can make the water saving rate of the ship lock reach 50%, which is the water saving rate of the existing ship lock with a first-level water storage tank. It can reduce the water consumption during the operation of the ship lock and effectively avoid the waste of water resources; it can reduce the water head of the discharge ship lock by half in advance, which improves the ship berthing conditions in the lock chamber and simplifies the energy dissipation design of the lock chamber.

Description of drawings

Fig. 1 is a kind of vertical section structure schematic diagram parallel to the gate of a water storage tank and a control system for improving the water saving rate of the ship lock according to the present invention;

2 is a schematic structural view of a vertical section perpendicular to the gate of a water storage tank and a control system for improving the water saving rate of the ship lock according to the present invention;

3 is a schematic diagram of the connection between the air bag and the bottom of the water storage tank of a water storage tank and a control system for improving the water saving rate of the ship lock according to the present invention;

FIG. 4 is a schematic structural diagram of a water storage tank and a control system for improving the water saving rate of a ship lock according to the present invention.

5 is a water level diagram showing that the water level in the lock chamber 2 is flush with the water level of the water storage tank 1 after the airbag 3 is deflated when the ship moves from the upstream to the downstream in the present invention;

Fig. 6 is the water level diagram after the water delivery valve 2 7 and the water delivery valve 3 8 are opened when the ship goes from the downstream to the upstream in the present invention;

FIG. 7 is a water level diagram showing that the volume of the airbag 3 just reaches the designed maximum volume when the ship moves from the downstream to the upstream, and all the water in the storage tank 1 enters the lock chamber 2 .

The reference signs in the figure are as follows: 1-water storage tank; 2-sluice chamber; 3-air bag; 4-water delivery port, 5-water delivery gallery; 6-water delivery valve 1; 7-water delivery valve 2; 8- Water delivery valve three; 9-air delivery conduit; 10-air pump; 11-flow rate monitoring module; 12-water level monitoring module; 13-pressure monitoring module; 14-pipe clip; 15-connecting ring.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

As shown in Figures 1 and 2, the present invention discloses a water storage tank and a control system for improving the water saving rate of a ship lock, including a water storage tank 1 and a control system. The water storage tank 1 is a rectangular parallelepiped, and the horizontal area (length and width) of the water storage tank 1 is the same as that of the lock chamber 2 . The bottom elevation of the storage tank 1 is the same as the downstream water level, and the depth of the storage tank 1 is greater than 3/4 of the maximum water level difference between the upstream and downstream.

The water storage tank 1 is provided with a water delivery valve, and the water delivery valve includes a water delivery valve 1 6 , a water delivery valve 7 and a water delivery valve 3 8 arranged in sequence from bottom to top. The water delivery valve is connected to one end of the water delivery gallery 5 , and the other end of the water delivery gallery 5 is connected to the water delivery port 4 at the bottom of the lock chamber 2 . As shown in FIG. 3 , the bottom of the water storage tank 1 is provided with a plurality of airbags 3, the bottom of the airbags 3 is provided with a connecting rope, and the bottom of the water storage tank is provided with a connecting ring 15. The airbag 3 and the bottom of the water storage tank 1 are connected by connecting ropes. Ring 15 is fixedly connected. The maximum volume of the airbag 3 after inflation is greater than 1/2 of the water volume of the lock chamber. As shown in FIG. 2 , the air bag 3 is inflated and deflated by the air pump 10 , and the air pump 10 and the air bag 3 are connected by an air delivery conduit 9 .

As shown in Figures 1 and 4, the control system includes a monitoring module and a control module. The monitoring module includes a flow rate monitoring module 11, a water level monitoring module 12 and a pressure monitoring module 13. The control module includes a charge and discharge control module and a valve control module. The control module According to the received flow rate signal, water level signal and pressure signal, a control signal is sent to control the opening and closing and output power of the air pump 10 and the opening and closing of the water delivery valve. The flow rate monitoring module 11 is arranged near the water delivery port 4 at the bottom of the lock chamber 2 , is used to monitor the water flow velocity of the water outlet to obtain the flow velocity signal, the water level monitoring module 12 is arranged on the side wall of the lock chamber 2, is used to monitor the water level of the lock chamber, and obtains the water level signal, and the pressure monitoring module 13 is arranged inside the air bag 3, for Monitor the internal pressure of the airbag and obtain the pressure signal. The inflation and deflation control module is used to control the opening and closing and output power of the air pump. The valve control module is used to control the opening and closing of the water delivery valve. The control module is respectively connected with the flow rate monitoring module 11 and the water level monitoring module. 12. The pressure monitoring module 13 is connected. The control module is connected with the motor, and the control module supplies power to the monitoring module.

Preferably, the control module includes: a memory for storing the water flow velocity threshold value, water level threshold value and pressure difference threshold value; a comparator, which is respectively connected to the flow velocity monitoring module 11, the water level monitoring module 12, the pressure monitoring module 13 and the memory, for sequentially comparing The flow velocity signal and the water flow velocity threshold, the water level signal and the water level threshold, the pressure signal and the pressure difference threshold; the amplifiers are respectively connected with the comparator, the charging and discharging control module and the valve opening and closing module to amplify the comparison results, and the amplified The signal is sent to the charge and deflate control module and the valve control module.

Preferably, the inflation and deflation control module can control the output power of the inflator 10 according to the pressure signal sent by the pressure monitoring module 13 in each airbag, so that the volume growth rate between the airbags 3 is consistent, so that the water flow into the lock chamber 2 is relatively smooth.

Preferably, the inflation and deflation control module can control the output power of the air pump 10 according to the water level signal and the flow rate signal sent by the flow rate monitoring module 11 and the water level monitoring module 12, so that when all the water in the water storage tank 2 is poured into the lock chamber, the volume of the air bag 3 Exactly up to the maximum designed volume.

As shown in Fig. 5 to Fig. 7, the specific working process of the present invention is as follows: when the ship goes from upstream to downstream, the inflation and deflation control module controls the output power of the inflator 10 to reach the maximum, so that the airbag 3 at the bottom of the water storage tank 2 can reach the fastest speed. When the speed is deflated, the valve control module opens the water delivery valve 1 6. Since the water level in the lock chamber 2 is higher than the water level in the storage tank 2, under the action of atmospheric pressure, the water body in the lock chamber 2 passes through the water delivery ports 4 and 4 at the bottom of the lock chamber. The water conveyance gallery 5 and the water conveyance valve 1 6 enter the water storage tank 1 . When the water level in the lock chamber 2 is flush with the water level in the storage tank 1 (which is 1/2 of the upstream water level), the valve control module closes the water delivery valve 1 6, and at this time 1/2 of the water body in the lock chamber leaks into the storage tank 1 . Finally, open the water delivery valve connecting the downstream in the water delivery gallery 5, and drain the remaining part of the water in the lock chamber 2 into the downstream, so that the water level in the lock chamber 2 is flush with the downstream water level, and the ship sails out of the lock chamber 2.

When the ship goes from the downstream to the upstream, the valve control module opens the water delivery valve 2 7 and the water delivery valve 3 8, and at the same time the inflation and deflation control module starts the inflation pump 10 to inflate the airbag 3 arranged on the bottom of the water storage tank 1, so that the airbag 3 After gradually expanding to the designed maximum volume, the inflation and deflation control module controls the output power of the air pump 10 so that when all the water in the storage tank 1 is poured into the lock chamber, the volume of the airbag 3 just reaches the designed maximum volume. Since the water level in the storage tank 1 is higher than the water level in the lock chamber 2, under the action of atmospheric pressure, all the water in the storage tank 1 passes through the water delivery valve 2 7, the water delivery valve 3 8, the water delivery corridor 5 and the bottom of the lock chamber 2. The water inlet 4 enters the lock chamber 2. Finally, open the water delivery valve connected to the upstream in the water delivery gallery 5, and input a part of the upstream water into the lock chamber 2, so that the water level in the lock chamber 2 is flush with the upstream water level, and the ship sails out of the lock chamber 2.

The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.

Claims (7)

1. A retention tank and control system for increasing lock water saving, characterized by: including cistern (1) and control system, be equipped with the water delivery valve on cistern (1), the water delivery valve is connected with water delivery corridor (5) one end, water delivery corridor (5) other end is connected to delivery port (4) of lock chamber (2) bottom, cistern (1) bottom is fixed with a plurality of gasbag (3), be provided with on cistern (1) and be used for filling the pump that loses heart for gasbag (3), control system includes monitoring module and control module, monitoring module includes velocity of flow monitoring module (11), water level monitoring module (12) and pressure monitoring module (13), velocity of flow monitoring module (11) sets up delivery port (4) department, water level monitoring module (12) set up on lock chamber (2) lateral wall, pressure monitoring module (13) set up inside gasbag (3), control module with monitoring module links to each other, control module is including filling and disappointing control module and valve control module, fill and lose gas control module and be used for controlling opening and close and output of pump, valve control module is used for controlling opening and close of water delivery valve.

2. The retention tank and control system for increasing lock water savings ratio of claim 1, wherein: the water storage tank (1) is a cuboid, and the horizontal area of the water storage tank (1) is the same as that of the lock chamber (2).

3. The retention tank and control system for increasing lock water savings ratio of claim 1, wherein: the elevation of the bottom of the water storage tank (1) is the same as the downstream water level, and the depth of the water storage tank (1) is greater than 3/4 of the maximum upstream-downstream water level difference; the maximum volume of the air bag (3) after being inflated is larger than 1/2 of the water volume of the gate chamber (2).

4. The retention tank and control system for increasing lock water savings ratio of claim 1, wherein: the air bag is characterized in that a connecting rope is arranged at the bottom of the air bag (3), a connecting ring (15) is arranged at the bottom of the water storage tank (1), and the air bag (3) is fixedly connected with the bottom of the water storage tank (1) through the connecting rope and the connecting ring (15).

5. The retention tank and control system for increasing lock water savings ratio of claim 1, wherein: the inflator pump (10) is connected with the air bag (3) through an air delivery conduit (9), and the air delivery conduit (9) is fixed on the side wall of the water storage tank (1) through a pipe clamp (14).

6. The retention tank and control system for increasing lock water savings ratio of claim 1, wherein: the control module is connected with the motor and supplies power to the monitoring module.

7. The retention tank and control system for increasing lock water savings ratio of claim 1, wherein: control module is including consecutive memory, comparator and amplifier, the comparator is connected respectively velocity of flow monitoring module (11), water level monitoring module (12) and pressure monitoring module (13) link to each other, the amplifier with fill and lose heart control module and valve control module and link to each other.

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