CN113981912B

CN113981912B - Anti-icing static pressure device for reservoir open top gate

Info

Publication number: CN113981912B
Application number: CN202111287071.0A
Authority: CN
Inventors: 姜凯; 赵金亮; 唐海霞; 齐益达; 徐宁
Original assignee: Hebei Institute of Investigation and Design of Water Conservancy and Hydropower Group Co Ltd
Current assignee: Hebei Institute of Investigation and Design of Water Conservancy and Hydropower Group Co Ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2023-02-14
Anticipated expiration: 2041-11-02
Also published as: CN113981912A

Abstract

The embodiment of the application relates to an anti-icing static pressure device of a reservoir open top gate, including being used for setting up the control chamber in the reservoir bottom, establish the submerged motor pump in the control chamber, first end is connected with the output of submerged motor pump, the second end is connected with the coupling hose of efflux union coupling, a sideboard for fixing on the dam body, establish the drive arrangement who is used for pulling the efflux pipe on the sideboard and removes to the direction that is close to and keeps away from the surface of water, establish ice layer thickness monitoring unit and the control unit that is used for monitoring the ice layer thickness on the surface of water on the sideboard, the control unit is used for according to the feedback control submerged motor pump and the drive arrangement work of ice layer thickness monitoring unit. The embodiment of the application discloses reservoir dew top gate anti-icing static pressure device can initiatively open ice to the ice sheet on the river surface, improves the security of gate operation.

Description

Anti-icing static pressure device for open top gate of reservoir

Technical Field

The application relates to the technical field of hydraulic engineering, in particular to an anti-icing static pressure device for a reservoir open top gate.

Background

After the reservoir freezes and forms the ice lid in winter, can form huge ice lid thrust to open top gate, cause the door leaf to warp or damage, seriously threaten the safety of gate.

Patent No. CN202022677790.0 (the name of the patent: an anti-freezing gate device for hydraulic engineering) discloses a technical solution, in which a heating device is added in front of the gate to melt the ice layer by heating, which requires a large amount of electric energy.

Patent No. CN202022190033.0 (title: an icebreaking water gate for hydraulic engineering) discloses a technical solution that uses an icebreaking cone to break an ice layer, which requires a complex mechanical structure and depends heavily on the kinetic energy generated by the icebreaking cone.

Disclosure of Invention

The embodiment of the application provides an anti-icing static pressure device of reservoir dew top gate can initiatively open ice to the ice sheet on the river surface, improves the security of gate operation.

The above object of the embodiments of the present application is achieved by the following technical solutions:

the embodiment of the application provides a reservoir dew top gate anti-icing static pressure device includes:

the operation chamber is arranged at the bottom of the reservoir;

the submersible electric pump is arranged in the operating chamber;

the first end of the connecting hose is connected with the output end of the submersible electric pump, and the second end of the connecting hose is connected with the jet pipe;

the side plate is used for being fixed on the dam body;

the driving device is arranged on the side plate and used for pulling the jet pipe to move towards and away from the water surface;

the ice layer thickness monitoring unit is arranged on the side plate and used for monitoring the thickness of the ice layer on the water surface; and

and the control unit is used for controlling the submersible electric pump and the driving device to work according to the feedback of the ice layer thickness monitoring unit.

In one possible implementation manner of the embodiment of the present application, the driving device includes:

the winch is arranged on the side plate; and

the steel wire rope is wound on the winch;

wherein, the first end of the steel wire rope is fixed on the jet pipe.

In a possible implementation manner of the embodiment of the application, the steel wire rope is provided with a plurality of first ends, and the joints of the first ends of the steel wire rope and the jet pipe are uniformly distributed on the jet pipe.

In a possible implementation manner of the embodiment of the present application, the method further includes:

the heating pipeline is sleeved on the steel wire rope; and

the floating platform is fixed on the heating pipeline;

wherein, there is the gap between heating pipeline and the wire rope.

In a possible implementation manner of the embodiment of the present application, the buoyancy module further includes a weight disposed on the floating platform or the heating pipeline, and a pulling force provided by the weight is smaller than a buoyancy force provided by the floating platform.

In one possible implementation manner of the embodiment of the application, the number of the submersible electric pumps, the number of the connecting hoses, the number of the jet pipes and the number of the driving devices are the same and are all multiple;

the submersible electric pumps are arranged in the operating chamber at intervals;

the driving devices are arranged on the side plate at intervals.

In one possible implementation manner of the embodiment of the application, the number of the ice layer thickness monitoring units is the same as that of the driving devices;

the feedback of each ice layer thickness monitoring unit to the control unit only corresponds to one submersible electric pump and a driving device.

In a possible implementation manner of the embodiment of the present application, the ice layer thickness monitoring unit includes:

the traction device is arranged on the side plate;

the first end of the traction rope is fixed on the working end of the traction device;

the tension sensor is arranged on the traction rope and used for detecting the tension on the traction rope; and

the floating ball is arranged at the second end of the traction rope;

wherein, the numerical value detected by the tension sensor is fed back to the control unit.

In a possible implementation manner of the embodiment of the application, the device further comprises a protective cover arranged on the traction rope;

the tension sensor is positioned in the protective cover.

In one possible implementation of the embodiment of the present application, the traction device is reset after each start.

Drawings

Fig. 1 is a schematic structural diagram of a conventional reservoir open-top gate according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an anti-icing static pressure device of a reservoir open top gate according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of another anti-icing static pressure device for a dew top gate of a reservoir provided by the embodiment of the application, wherein a jet pipe is located at an operating position.

Fig. 4 is a schematic structural diagram of another anti-icing static pressure device for a reservoir open top gate according to an embodiment of the present application, in which a jet pipe is located at a non-working position.

Fig. 5 is a schematic force diagram of a gate provided by the embodiment of the application when the gate opens ice.

Fig. 6 is a schematic force diagram of another gate provided in the embodiment of the present application when the gate opens ice.

Fig. 7 is a schematic connection diagram of a heating pipeline, a floating platform and a weight according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of an ice layer thickness monitoring unit according to an embodiment of the present application.

Fig. 9 is a schematic installation diagram of a tension sensor according to an embodiment of the present application.

Fig. 10 is a schematic view of another installation of a tension sensor provided in an embodiment of the present application.

Fig. 11 is a block diagram schematically illustrating a structure of a control unit according to an embodiment of the present application.

In the figure, 11, an operation room, 12, a submersible electric pump, 13, a connecting hose, 14, a side plate, 15, a driving device, 16, an ice layer thickness monitoring unit, 17, a jet pipe, 6, a control unit, 151, a winch, 152, a steel wire rope, 21, a heating pipeline, 22, a floating platform, 23, a heavy object, 161, a traction device, 162, a traction rope, 163, a tension sensor, 164, a protective cover, 165 and a floating ball.

Detailed Description

Example 1

The technical solution of the present application will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an anti-icing static pressure device for a top-exposed gate of a reservoir disclosed in an embodiment of the present application is composed of an operation chamber 11, a submersible electric pump 12, a connecting hose 13, a side plate 14, a driving device 15, an ice layer thickness monitoring unit 16, a jet pipe 17, a control unit 6, and the like, wherein the operation chamber 11 is located at the bottom of the reservoir and is used for providing a platform for the submersible electric pump 12, the connecting hose 13, the jet pipe 17, and the like.

It will be appreciated that there may be deposits of silt, leaves, etc. at the bottom of the reservoir, which deposits, if deposited in large quantities on the submersible pump 12, may cause the submersible pump 12 to fail to operate properly. The operation chamber 11 can block the sediments and keep the surface of the submersible electric pump 12 clean, in addition, the submersible electric pump 12 can be directly fixed on the operation chamber 11 and then sunk to the bottom of the reservoir, the installation process is more convenient, and people do not need to be sent to the underwater for operation.

The first end of the connecting hose 13 is connected with the output end of the submersible electric pump 12, the second end is connected with the jet pipe 17, the function is to convey water with pressure output by the submersible electric pump 12 to the jet pipe 17, the water sprayed out of the jet pipe 17 can flow to the ice layer on the water surface, and the ice layer is damaged by means of water flow impact and temperature difference.

The side plate 14 is fixedly installed on the dam body, the driving device 15 is installed on the side plate, the driving device 15 is used for pulling the jet pipe 17 to move towards the direction close to and away from the water surface, specifically, when ice breaking is needed, the driving device 15 is started, the jet pipe 17 is pulled to move towards the direction close to the ice layer, and after the ice breaking is completed, the jet pipe 17 returns to the initial position.

It will be appreciated that the jet pipe 17 must be kept sufficiently close to the ice layer to break the ice, but that if the jet pipe 17 is in this position for a long time, it will affect the normal operation of the gate or even the dam, and therefore it is necessary to pull the jet pipe 17 by means of the drive means 15 to switch between the operative position (breaking the ice) and the inoperative position (close to the bottom of the reservoir).

The thickness of the ice layer on the water surface is monitored by an ice layer thickness monitoring unit 16 positioned on the side plate 14, after the ice layer thickness monitoring unit 16 monitors that the ice layer appears on the water surface or the ice layer reaches the thickness, the driving device 15 is started, the jet pipe 17 is pulled to move to the lower part of the ice layer and the electric submersible pump 12 is started, and the ice layer is damaged by means of water flow. After the ice layer is broken, the jet pipe 17 moves from the working position (for breaking ice) to the non-working position (near the bottom of the reservoir), and the submersible electric pump 12 stops working, as shown in fig. 3 and 4.

The data obtained by the ice layer thickness monitoring unit 16 is fed back to the control unit 6, and the control unit 6 controls the submersible electric pump 12 and the driving device 15 to work according to the feedback of the ice layer thickness monitoring unit 16, so that the automatic operation of ice breaking is realized.

It should be understood that when an ice layer exists on the water surface, liquid water still exists below the ice layer, and the temperature of the water is higher as the water is closer to the bottom of the reservoir, so that the ice layer on the water surface can be dissolved by means of the liquid water, and the ice layer can be split into a plurality of parts by matching with the impact of water flow.

Referring to fig. 5 and 6, it will be further appreciated that the purpose of breaking ice is not to melt the entire ice layer on the water surface, but rather to break the ice layer into portions that reduce the resistance experienced by the gate when it emerges from the water. Because if a large area of ice layer exists on the moving track of the gate, the movement of the gate is greatly hindered.

From another point of view, the moving speed of the gate is relatively slow, which causes the gate to only slowly push the ice layer to move after the ice layer is contacted, and then waits for the ice layer to break, which is the worst ice breaking way, and causes the gate and the power unit to bear large load, on one hand, the power unit pulling the gate can run in an overload mode, and on the other hand, the gate can also be deformed or damaged.

In addition, when the thickness of the ice layer is large, the loads of the gate and the power unit are further increased. After the area of the ice layer on the moving track of the gate is reduced, the load of the gate in the process of pushing the ice layer can be effectively reduced, and the gate can float out of the water surface only by pushing a small ice block above the gate.

On the whole, the anti-icing static pressure device of the reservoir open-top gate disclosed by the embodiment of the application can cut and melt the ice layer by means of liquid water below the ice layer, so that the resistance of the gate when the gate floats from the water surface is reduced, the possible deformation, damage and the like of the gate are avoided, and a power unit for driving the gate to move is also protected.

Example 2

Referring to fig. 4, as a specific embodiment of the anti-icing static pressure device for the open top gate of the reservoir, the driving device 15 is composed of two parts, i.e., a winch 151 and a steel wire rope 152, the winch 151 is fixedly installed on the side plate 14, and the steel wire rope 152 is wound on the winch 151.

For convenience of description, both ends of the wire rope 152 are referred to as a first end and a second end, respectively, the second end of the wire rope 152 is fixed to the winding machine 151, a portion of the wire rope is wound around the winding machine 151, and the first end is connected to the jet pipe 17. When the winch 151 works, the jet pipe 17 can be pulled to be close to the ice layer on the water surface through the steel wire rope 152.

Referring to fig. 4, as a specific embodiment of the anti-icing static pressure device for the exposed top gate of the reservoir provided by the application, the steel wire rope 152 has a plurality of first ends, and joints between the plurality of first ends of the steel wire rope 152 and the jet pipe 17 are uniformly distributed on the jet pipe 17, so that the jet pipe 17 can be kept horizontal in the moving process, and the ice breaking effect can be improved.

It will be appreciated that the closer the distance between the water sprayed from the jet pipe 17 and the ice layer is, the better the ice breaking effect is, and if there is only one connection between the steel wire rope 152 and the jet pipe 17, it is difficult to ensure that the distance distribution between the jet pipe 17 and the ice layer is uniform during the movement and operation of the jet pipe 17 because the jet pipe 17 is uncontrollably inclined. After the number of the joints is increased, the jet pipe 17 can be always kept horizontal in the moving and working processes, and a better ice breaking effect is obtained.

Example 3

Referring to fig. 7, as a specific embodiment of the anti-icing static pressure device for the open top gate of the reservoir, a heating pipeline 21 and a floating platform 22 are added, and the heating pipeline 21 is sleeved on a steel wire rope 152 and is used for reducing the load when a winch 151 pulls the steel wire rope 152.

In a specific scenario, the first end of the steel cable 152 needs to be extended into the water and then connected to the jet pipe 17, and if the water surface is frozen, the steel cable 152 will freeze together with the ice layer on the water surface. When the hoist 151 is started, the wire 152 may be difficult or impossible to pull.

When the wire rope 152 is difficult to pull or cannot be pulled, the hoist 151 is in an overload state and may be burned.

After the heating pipe 21 is added, in the above scenario, the heating pipe 21 generates heat, and the ice on the inner wall and the outer wall of the heating pipe 21 begins to melt. Because there is a gap between the heating pipe 21 and the wire rope 152, when the heating pipe 21 starts to generate heat, the ice layer in the gap starts to melt, and when the ice layer in the gap can slide relative to the inner wall of the heating pipe 21, the wire rope 152 can be easily pulled out of the heating pipe 21.

With the movement of the steel wire rope 152, the jet pipe 17 below the ice layer can be conveniently lifted to the position below the ice layer, and then the ice layer is damaged by means of the water flow sprayed by the jet pipe 17.

In some possible implementations, heating duct 21 has heating resistance wires or heating resistance sheets mounted inside. The current required for the operation of the heating duct 21 is supplied by a power supply module supplying power to the winding machine 151.

The purpose of the float 22 is to enable the heating conduit 21 to be always on the water surface, in order to enable the heating conduit 21 to penetrate the ice layer. Here, since there is a gap between the heating pipe 21 and the wire rope 152, when there is no ice on the water surface, the heating pipe 21 may move to below the water surface. The purpose of the floating platform 22 is to enable the heating conduit 21 to always float on the water surface.

Referring to fig. 7, further, a weight 23 is added to the floating platform 22 or the heating pipe 21, and a pulling force provided by the weight 23 is smaller than a buoyancy force provided by the floating platform 22, so that the heating pipe 21 and the floating platform 22 can stay on the water surface when the steel wire rope 152 moves, and the floating heating pipe 21 and the floating platform 22 can float on the water surface when no ice is formed on the water surface.

For example, the heating pipe 21 and the floating platform 22 may be pulled away from the water surface when the wire rope 152 moves, but the floating platform 22 may be slid onto the water surface along the wire rope 152 after leaving the water surface due to the presence of the weight 23.

Example 4

As a specific embodiment of the anti-icing static pressure device of the open top gate of the reservoir provided by the application, the number of the submersible electric pump 12, the connecting hose 13, the jet pipe 17 and the driving device 15 is increased to be multiple, and the number of the submersible electric pump 12, the connecting hose 13, the jet pipe 17 and the driving device 15 is the same.

It is also understood that the submersible electric pump 12, the connecting hose 13, the jet pipe 17 and the driving device 15 are divided into a plurality of groups, and each group includes one submersible electric pump 12, one connecting hose 13, one jet pipe 17 and one driving device 15.

The submersible electric pump 12 is arranged in the operation chamber 11 at intervals, and the driving device 15 is arranged on the side plate 14 at intervals, so that the whole area near the gate is covered, the area near the gate is divided, and a better ice breaking effect can be achieved.

In particular, the submersible electric pump 12 has a certain power, which results in a limited working length of the jet pipe 17, since an excessively long length of the jet pipe 17 causes a considerable reduction in the speed of the jet water flow, and at the same time increases the difficulty of movement.

When the grouped structure is adopted, the length of the jet pipe 17 can be controlled within a proper range, and meanwhile, the power of the submersible electric pump 12 is not too large, so that the submersible electric pump has better economical efficiency and practicability.

Example 5

As an embodiment of the anti-icing hydrostatic device for the open-top gate of a reservoir provided by the application, the number of the ice layer thickness monitoring units 16 is the same as the number of the driving devices 15, and the feedback of each ice layer thickness monitoring unit 16 to the control unit 6 corresponds to only one submersible electric pump 12 and one driving device 15.

That is, different ice layer thickness monitoring units 16 can monitor different areas, and the submersible electric pump 12 and the driving device 15 in the areas can also work independently, so that the ice layer in a certain area can be damaged independently, less energy is consumed, and the economy and practicability can be further improved.

Example 6

Referring to fig. 8, as a specific embodiment of the anti-icing static pressure device for the open top gate of the reservoir, the ice thickness monitoring unit 16 is composed of a traction device 161, a traction rope 162, a tension sensor 163, a floating ball 165 and the like, the traction device 161 is fixedly installed on the side plate 14, two ends of the traction rope 162 are respectively fixedly connected to the traction device 161 and the floating ball 165, the floating ball 165 floats on the water surface, and the tension sensor 163 is installed on the traction rope 162 and is used for detecting the tension on the traction rope 162.

The values detected by the tension sensor 163 are fed back to the control unit 6 for operating the associated submersible electric pump 12 and drive means 15.

In some possible implementations, the traction device 161 may use a winch or an electric cylinder.

Referring to fig. 9, in some possible implementations, the pulling rope 162 is divided into two sections, two ends of the first section of pulling rope 162 are connected to the first connection end of the pulling device 161 and the tension sensor 163, and two ends of the second section of pulling rope 162 are connected to the second connection end of the tension sensor 163 and the floating ball 165.

In this manner, it can be appreciated that the tension sensor 163 is part of the pull-cord 162.

Referring to fig. 10, in other possible implementations, the main portion of the tension sensor 163 is fixed to the pull rope 162, and the detecting end abuts against the pull rope 162 and forces the pull rope 162 to bend.

In this manner, the pulling rope 162 applies a pressure to the detecting end of the pulling force sensor 163, and the pulling force on the pulling rope 162 can be calculated according to the magnitude of the pressure.

Specifically, if there is no ice on the water surface, the traction device 161 can easily pull up the floating ball 165 from the water surface, and the difficulty of pulling up the traction device 161 during icing increases because the gravity of the floating ball 165 and the connecting force between the floating ball 165 and the ice layer are overcome, and the difficulty of pulling up the floating ball 165 increases with the increase of the thickness of the ice layer.

The difficulty when the floating ball 165 is pulled up is sensed by the tension sensor 163, and specifically, the larger the numerical value fed back by the tension sensor 163 is, the larger the difficulty when the floating ball 165 is pulled up is, and the two are in positive correlation. When the value fed back by the tension sensor 163 reaches the set value, the control unit 6 starts to drive the corresponding submersible electric pump 12 and the driving device 15 to work, so as to destroy the ice layer near the floating ball 165.

Further, please refer to fig. 8, a protective cover 164 is added on the pulling rope 162, and the protective cover 164 can cover the tension sensor 163, so as to provide a stable working environment for the tension sensor 163, on one hand, cold wind, water vapor and the like can be avoided, and on the other hand, water splashed during working can be prevented from falling to the tension sensor 163 to be frozen, so that the tension sensor 163 cannot work normally.

As a specific implementation of the anti-icing static pressure device for the open top gate of the reservoir provided by the application, the traction device 161 needs to be reset after being started once, and the resetting function is to enable the next detection to be accurate, for example, half a meter of the traction rope 162 is recovered by the traction device 161 in the primary detection process, and then after the detection is completed, the traction device 161 needs to release the half-meter of the traction rope 162 to enable the floating ball 165 to fall on the water surface.

Referring to fig. 11, it should be understood that the control unit 6 mentioned in the above description may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the programs of the above description. The control unit 6 mainly includes a CPU601, a RAM602, a ROM603, a system bus 604, and the like, wherein the CPU601, the RAM602, and the ROM603 are connected to the system bus 604.

The operation principle of the submersible electric pump 12 is similar to that of the heating pipeline 21, taking the submersible electric pump 12 as an example, the submersible electric pump 12 is connected to the system bus 604 through a control circuit, and the control circuit mainly realizes the on-off of the circuit, so that the start-stop of the submersible electric pump 12 can be controlled.

The driving means 15 and the traction means 161 operate on a similar principle to the submersible pump 12, except that positive and negative rotation controls are added to effect raising and lowering. The drive unit 15 and the traction unit 161 are also connected to the system bus 604 via a control circuit that includes forward and reverse rotation control.

The ice thickness monitoring unit 16, specifically the tension sensor 163, needs to be connected to the system bus 604 via a communication circuit, which includes wired communication (connecting port and data line) and wireless communication (bluetooth or lan), etc.

The embodiments of the present invention are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a reservoir dew top gate anti-icing static pressure equipment which characterized in that includes:

an operation chamber (11) arranged at the bottom of the reservoir;

the submersible electric pump (12) is arranged in the operation chamber (11);

the first end of the connecting hose (13) is connected with the output end of the submersible electric pump (12), and the second end of the connecting hose is connected with the jet pipe (17);

the side plate (14) is used for being fixed on the dam body;

the driving device (15) is arranged on the side plate (14) and used for pulling the jet pipe (17) to move towards and away from the water surface;

the ice layer thickness monitoring unit (16) is arranged on the side plate (14) and is used for monitoring the thickness of the ice layer on the water surface; and

the control unit (6) is used for controlling the submersible electric pump (12) and the driving device (15) to work according to the feedback of the ice layer thickness monitoring unit (16);

the drive device (15) comprises:

a hoist (151) provided on the side plate (14); and

a wire rope (152) wound around the hoist (151);

wherein, the first end of the steel wire rope (152) is fixed on the jet pipe (17);

the steel wire ropes (152) are provided with first ends, and the joints of the first ends of the steel wire ropes (152) and the jet pipe (17) are uniformly distributed on the jet pipe (17);

further comprising:

the heating pipeline (21) is sleeved on the steel wire rope (152); and

a floating platform (22) fixed on the heating pipeline (21);

wherein a gap is formed between the heating pipeline (21) and the steel wire rope (152).

2. The anti-icing static pressure device of the open top gate of the reservoir as claimed in claim 1, further comprising a weight (23) provided on the floating platform (22) or the heating pipe (21), wherein the pulling force provided by the weight (23) is smaller than the buoyancy provided by the floating platform (22).

3. The anti-icing static pressure device of the open top gate of the reservoir as claimed in claim 1, wherein the number of the submersible electric pump (12), the connecting hose (13), the jet pipe (17) and the driving device (15) is the same and is multiple;

the submersible electric pumps (12) are arranged in the operation chamber (11) at intervals;

the driving devices (15) are arranged on the side plate (14) at intervals.

4. The anti-icing static pressure device of a reservoir open top gate of claim 3, characterized in that the number of ice thickness monitoring units (16) is the same as the number of driving means (15);

the feedback of each ice layer thickness monitoring unit (16) to the control unit (6) corresponds to only one submersible electric pump (12) and drive device (15).

5. The anti-icing hydrostatic pressure device of the open top gate of the reservoir as claimed in any one of claims 1 to 4, wherein the ice thickness monitoring unit (16) comprises:

a traction device (161) provided on the side plate (14);

a pull cord (162) having a first end secured to the working end of the pulling device (161);

a tension sensor (163) provided on the pulling rope (162) for detecting tension on the pulling rope (162); and

a float (165) provided on the second end of the pull rope (162);

wherein, the value detected by the tension sensor (163) is fed back to the control unit (6).

6. The anti-icing static pressure device of the open top gate of the reservoir as claimed in claim 5, further comprising a protective cover (164) provided on the pulling rope (162);

the tension sensor (163) is located within the protective cover (164).

7. The static pressure equipment of claim 5, wherein the pulling device (161) is reset after each activation.