A device and its working method for alleviating ice formation on the water surface in front of a dam.

Abstract

This invention discloses a device and its operating method for alleviating water surface icing in front of a dam. The device includes a blower, a float, a counterweight, and a controller. The blower is positioned above the water surface where the dam is located. The float floats on the water surface in front of the dam and is connected to it. A gas pipe connected to the float is located below it. The counterweight is located below the gas pipe and connected to it, keeping the gas pipe submerged in the water. The air inlet of the gas pipe is connected to the air outlet of the blower via a connecting hose. Multiple air holes with the blowing direction facing the water surface are distributed on the gas pipe. The controller is communicatively connected to the blower motor. This invention can alleviate water surface icing in front of the dam, and the controller can adjust the output power of the blower motor based on weather forecasts for the dam's location over a future period, preventing the blower motor from operating at continuously high power.

Description

Technical Field

[0001] This invention belongs to the field of dam and gate water surface icing protection technology, specifically relating to a device and working method for alleviating water surface icing in front of a dam and gate. Background Technology

[0002] To prevent the expansion of the water surface in front of the dam due to freezing and put pressure on the dam's water-retaining structures, reservoirs in northern regions prone to freezing will take measures to alleviate the freezing of the water surface in front of the dam, thereby reducing the force of the ice in front of the dam.

[0003] In existing technologies, the main approach is to install multiple water pumps under the water surface in front of the dam, and use the pumps to spray water to create local flow. The combined action of multiple pumps can disturb the water over a large area and prevent the water surface in front of the dam from freezing.

[0004] The following problems exist in using water pumps to alleviate the freezing of the water surface in front of the dam: (1) The workload of installing multiple water pumps under the water surface in the early stage is large and the task of water pump debugging is heavy; (2) Achieving large-area water disturbance through multiple water pumps will cause a large power consumption; (3) Multiple water pumps are placed in low-temperature water for a long time, which is prone to damage to the water pumps. Summary of the Invention

[0005] In view of the above-mentioned deficiencies of the prior art, the present invention provides a device and a working method for alleviating water surface icing in front of a dam, which can alleviate water surface icing in front of a dam and can adjust the output power of the blower motor according to the meteorological forecast information of the geographical location of the dam for a period of time in the future, so as to prevent the blower motor from always being in a high-power operation state.

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] A device for alleviating ice formation on the water surface in front of a dam includes a blower, a float, a counterweight, and a controller. The blower is positioned above the water surface where the dam is located. The float floats on the water surface in front of the dam and is connected to the dam. A gas pipe connected to the float is located below the float. The counterweight is located below the gas pipe and is connected to the gas pipe, keeping the gas pipe submerged in the water. The air inlet of the gas pipe is connected to the air outlet of the blower via a connecting hose. The gas pipe has multiple air holes with the blowing direction facing the water surface. The controller is communicatively connected to the motor of the blower and is used to obtain future temperature data based on meteorological forecasts for the geographical location of the dam, and adjust the output power of the blower motor according to the obtained future temperature data.

[0008] Furthermore, the area of ​​the lower surface of the float is adapted to the area of ​​the water in front of the dam within a certain range. The gas pipeline is composed of multiple rigid and horizontally arranged gas sub-pipes spliced ​​end to end and distributed below the entire lower surface of the float. Some of the gas sub-pipes are parallel to the extension direction of the dam and are called the first gas sub-pipes, while the remaining gas sub-pipes are called the second gas sub-pipes. The second gas sub-pipes are perpendicular to the first gas sub-pipes.

[0009] Furthermore, the first gas distribution pipe is fixedly connected to the corresponding position on the lower surface of the float via multiple first upper connecting ropes, and the second gas distribution pipe is fixedly connected to the corresponding position on the lower surface of the float via multiple second upper connecting ropes.

[0010] Furthermore, the counterweight includes a first counterweight and a second counterweight. Multiple first counterweights are arranged below each first gas sub-pipe, and the first counterweights are fixedly connected to the corresponding first gas sub-pipes via a first lower connecting rope. Multiple second counterweights are arranged below each second gas sub-pipe, and the second counterweights are fixedly connected to the corresponding second gas sub-pipes via a second lower connecting rope.

[0011] Furthermore, the air blowing holes include a plurality of first air blowing holes distributed on each first gas branch pipe, and a plurality of second air blowing holes distributed on each second gas branch pipe.

[0012] Furthermore, a plurality of first air inlets are evenly distributed on the top and side surfaces of the first gas distribution pipe, and a plurality of second air inlets are evenly distributed on the top and side surfaces of the second gas distribution pipe.

[0013] Furthermore, the plurality of first air-blowing holes distributed on the top surface of the first gas distribution pipe are called first top air-blowing holes, and the air-blowing direction of the first top air-blowing holes is arranged vertically upward; the plurality of second air-blowing holes distributed on the top surface of the second gas distribution pipe are called second top air-blowing holes, and the air-blowing direction of the second top air-blowing holes is arranged vertically upward; the plurality of first air-blowing holes distributed on the side surface of the first gas distribution pipe are called first side air-blowing holes, and the air-blowing direction of the first side air-blowing holes is arranged obliquely upward; the plurality of second air-blowing holes distributed on the side surface of the second gas distribution pipe are called second side air-blowing holes, and the air-blowing direction of the second side air-blowing holes is arranged obliquely upward.

[0014] Furthermore, the blower is installed at the top of the dam, one end of the float is fixedly connected to the corresponding position of the dam via a first anchor chain, and the other end is fixedly connected to the corresponding position of the dam via a second anchor chain, and the counterweight is a lead block.

[0015] A method for operating a device to alleviate ice formation on the water surface in front of a dam includes: starting the blower, which blows air into a gas pipe through a connecting hose and then through multiple air holes to disturb the water surface in front of the dam, thereby alleviating ice formation; the controller obtains future temperature data based on meteorological forecasts for the dam's location over a future period and compares it with a first temperature threshold pre-stored in the controller; when the obtained future temperature data is lower than the first temperature threshold, the controller increases the output power of the blower motor; when the obtained future temperature data is higher than the first temperature threshold, the controller decreases the output power of the blower motor for the corresponding future period; and the controller compares the obtained future temperature data with a second temperature threshold pre-stored in the controller; when the obtained future temperature data is higher than the second temperature threshold, the controller stops the blower for the corresponding future period.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The device of the present invention for alleviating ice formation on the water surface in front of a dam utilizes a blower. The blower blows air through a connecting hose into a gas pipe, and then through multiple air holes onto the water surface in front of the dam to agitate the water. This alleviates ice formation and prevents the expansion of the ice from compressing the dam's water-retaining structures. Meanwhile, a controller obtains future temperature data based on weather forecasts for the dam's location over a future period and compares it with a pre-stored first temperature threshold. When the obtained future temperature data is lower than the first temperature threshold, the controller increases the output of the blower motor. When the acquired temperature data for a future period is higher than a first temperature threshold, the controller reduces the output power of the blower motor for the corresponding future period. The controller also compares the acquired temperature data for a future period with a second temperature threshold pre-stored in the controller. When the acquired temperature data for a future period is higher than the second temperature threshold, the controller controls the blower to stop running for the corresponding future period. This allows the controller to adjust the output power of the blower motor based on the meteorological forecast information for a future period of time based on the geographical location of the dam, preventing the blower motor from always operating at high power and thus reducing the power consumption of the blower.

[0018] In this invention, since the blower is located above the water surface where the dam is situated, meaning it is not placed in the low-temperature water, there is no risk of damage to the blower. Furthermore, installing a blower above the water surface where the dam is located requires minimal work and the blower's commissioning is simple. Because the float is suspended on the water surface in front of the dam and connected to it, its position is relatively fixed, and it remains suspended within a certain range of the water surface in front of the dam. Since a gas pipe connected to the float is located below it, and a counterweight is positioned below and connected to the gas pipe, keeping it submerged, the gas pipe will not float arbitrarily with the float. Therefore, the gas pipe's position is relatively fixed, and the counterweight ensures that the gas pipe will not float above the water surface and remains submerged within a certain range of the water surface in front of the dam, thus better mitigating ice formation on the water surface in front of the dam.

[0019] In this invention, the area of ​​the lower surface of the float is adapted to the area of ​​a certain range of water in front of the dam. The gas pipeline is composed of multiple rigid and horizontally arranged gas sub-pipes spliced ​​end to end and distributed below the entire lower surface of the float. In this way, when the blower is started, gas is blown out from under the water surface in a certain range of water in front of the dam, thereby ensuring that the water in a certain range of water in front of the dam is disturbed by the blowing after the blower is started, thus effectively alleviating the freezing of the water surface in a certain range of water in front of the dam. Attached Figure Description

[0020] Figure 1 This is a schematic front view of the device for alleviating ice formation on the water surface in front of a dam according to the present invention;

[0021] Figure 2 for Figure 1 A top view of the buoy and the first and second gas distribution pipes located below the buoy;

[0022] Figure 3 for Figure 2 A top-view enlarged structural diagram showing multiple first top blowing holes distributed on the top surface of the first gas distribution pipe;

[0023] Figure 4 This is a control block diagram showing the connection between the controller and the blower motor.

[0024] The following are the labels in the attached diagram: 1. Dam, 2. Blower, 3. Float, 4. First gas distribution pipe, 5. Second gas distribution pipe, 6. First upper connecting rope, 7. Second upper connecting rope, 8. First counterweight, 9. Second counterweight, 10. First lower connecting rope, 11. Second lower connecting rope, 12. First top air inlet, 13. Water surface, 14. Connecting hose. Detailed Implementation

[0025] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0026] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0029] like Figure 1-4 As shown, a device for alleviating ice formation on the water surface in front of a dam includes a blower 2, a float 3, a counterweight, and a controller. The blower 2 is positioned above the water surface 13 where the dam 1 is located. The float 3 floats on the water surface 13 in front of the dam 1 and is connected to the dam 1. A gas pipe connected to the float 3 is located below the float 3. The counterweight is located below the gas pipe and is connected to the gas pipe, keeping the gas pipe below the water surface 13. The air inlet of the gas pipe is connected to the air outlet of the blower 2 via a connecting hose 14. The gas pipe has multiple air holes with the air blowing direction facing the water surface 13. The controller is communicatively connected to the motor of the blower 2 and is used to obtain the temperature data for a future period based on the meteorological forecast information of the geographical location of the dam 1, and adjust the output power of the motor of the blower 2 according to the obtained temperature data for a future period.

[0030] By starting the blower 2, air is blown into the gas pipe through the connecting hose 14 and then blown through multiple air holes onto the water surface 13 in front of the dam 1 to disturb the water. This can alleviate the freezing of the water surface 13 in front of the dam 1 and prevent the expansion of the water surface 13 due to freezing from squeezing the dam structure. The controller can adjust the output power of the blower 2 motor according to the weather forecast information of the geographical location of the dam 1 in the future, so as to prevent the blower 2 motor from running at high power all the time, thereby reducing the power consumption of the blower 2.

[0031] Furthermore, since the blower 2 is located above the water surface 13 where the dam 1 is situated, meaning it is not placed in the low-temperature water, there is no risk of damage to the blower 2. Installing a blower 2 above the water surface 13 where the dam 1 is situated requires minimal work and the blower 2 is easy to debug. Because the float 3 floats on the water surface 13 in front of the dam 1 and is connected to the dam 1, its position is relatively fixed and it always floats on the water surface 13 within a certain range in front of the dam 1. Since a gas pipe connected to the float 3 is located below it, and a counterweight is positioned below and connected to the gas pipe, keeping it below the water surface 13, the gas pipe connected to the float 3 will not float arbitrarily. Therefore, the position of the gas pipe is relatively fixed, and the counterweight ensures that the gas pipe will not float above the water surface 13 and will always remain below the water surface 13 within a certain range in front of the dam 1, thus better alleviating ice formation on the water surface 13 in front of the dam 1.

[0032] In one embodiment, the area of ​​the lower surface of the float 3 is adapted to the area of ​​the water area in front of the dam 1 within a certain range. The gas pipeline is composed of multiple rigid, horizontally arranged gas branch pipelines spliced ​​end to end and distributed below the entire lower surface of the float 3. Some gas branch pipelines are parallel to the extension direction of the dam 1 and are called the first gas branch pipeline 4. The remaining gas branch pipelines are called the second gas branch pipelines 5. The second gas branch pipelines 5 are perpendicular to the first gas branch pipelines 4. See Figure 1 and 2 In this way, when blower 2 is started, air will be blown out from the water surface 13 of a certain range in front of dam 1, thus ensuring that the water body in a certain range in front of dam 1 is disturbed by the blowing air after blower 2 is started, thereby effectively alleviating the freezing of the water surface 13 in a certain range in front of dam 1.

[0033] In one embodiment, the first gas distribution pipe 4 is fixedly connected to a corresponding position on the lower surface of the float 3 via multiple first upper connecting ropes 6, and the second gas distribution pipe 5 is fixedly connected to a corresponding position on the lower surface of the float 3 via multiple second upper connecting ropes 7; the counterweights include first counterweights 8 and second counterweights 9, with multiple first counterweights 8 arranged below each first gas distribution pipe 4, and the first counterweights 8 are fixedly connected to the corresponding first gas distribution pipe 4 via first lower connecting ropes 10; with multiple second counterweights 9 arranged below each second gas distribution pipe 5, the second counterweights 9 are fixedly connected to the corresponding second gas distribution pipe 5 via second lower connecting ropes 11. Figure 1 .

[0034] In one embodiment, the blowing holes include a plurality of first blowing holes distributed on each first gas distribution pipe 4, and a plurality of second blowing holes distributed on each second gas distribution pipe 5; the plurality of first blowing holes are evenly distributed on the top and side surfaces of the first gas distribution pipe 4, and the plurality of second blowing holes are evenly distributed on the top and side surfaces of the second gas distribution pipe 5; the plurality of first blowing holes distributed on the top surface of the first gas distribution pipe 4 are referred to as first top blowing holes 12, see Figure 3 The first top air inlet 12 is arranged vertically upwards. The multiple second air inlets distributed on the top surface of the second gas distribution pipe 5 are called second top air inlets, and the air inlets are arranged vertically upwards. The multiple first air inlets distributed on the side surface of the first gas distribution pipe 4 are called first side air inlets, and the air inlets are arranged obliquely upwards. The multiple second air inlets distributed on the side surface of the second gas distribution pipe 5 are called second side air inlets, and the air inlets are arranged obliquely upwards.

[0035] In this way, the gas entering each first gas distribution pipe 4 can be blown vertically upward toward the water surface 13 from multiple first top air holes 12, and also obliquely upward toward the water surface 13 from multiple first side air holes. Similarly, the gas entering each second gas distribution pipe 5 can be blown vertically upward toward the water surface 13 from multiple second top air holes, and also obliquely upward toward the water surface 13 from multiple second side air holes, thus achieving a better effect in agitating the water body.

[0036] In one embodiment, the blower 2 is located at the top of the dam 1, see... Figure 1 One end of the float 3 is fixedly connected to the corresponding position of the dam 1 via the first anchor chain, and the other end is fixedly connected to the corresponding position of the dam 1 via the second anchor chain. The counterweight is a lead block.

[0037] A method for operating a device to alleviate ice formation on the water surface in front of a dam includes: starting a blower 2, which blows air into a gas pipe through a connecting hose 14 and through multiple air holes onto the water surface 13 in front of the dam 1 to agitate the water and alleviate ice formation on the water surface 13 in front of the dam 1. This helps to prevent the expansion of the water surface 13 due to ice formation from compressing the dam's water-retaining structures. The controller obtains future temperature data based on meteorological forecasts for the location of the dam 1 over a future period and compares it with a first temperature threshold pre-stored in the controller. When the obtained future temperature data is lower than the first temperature threshold, the controller... The controller increases the output power of the blower 2 motor. When the temperature data for a future period is higher than the first temperature threshold, the controller reduces the output power of the blower 2 motor for the corresponding future period. The controller also compares the acquired temperature data for a future period with the second temperature threshold stored in the controller. When the acquired temperature data for a future period is higher than the second temperature threshold, the controller controls the blower 2 to stop running for the corresponding future period. In this way, the controller can adjust the output power of the blower 2 motor according to the meteorological forecast information of the geographical location of the dam 1 for a future period, preventing the blower 2 motor from always running at high power, thereby reducing the power consumption of the blower 2.

[0038] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A device for alleviating ice formation on the water surface in front of a dam, characterized in that: The system includes a blower (2), a float (3), a counterweight, and a controller. The blower (2) is positioned above the water surface (13) where the dam (1) is located. The float (3) floats on the water surface (13) in front of the dam (1) and is connected to the dam (1). A gas pipe is provided below the float (3) and connected to it. The counterweight is located below the gas pipe and is connected to the gas pipe, keeping the gas pipe below the water surface (13). The air inlet of the gas pipe is connected to the air outlet of the blower (2) through a connecting hose (14). The gas pipe has multiple air holes with the blowing direction facing the water surface (13). The controller is connected to the motor of the blower (2) and is used to obtain the temperature data for a future period based on the meteorological forecast information of the geographical location of the dam (1) for a future period, and adjust the output power of the motor of the blower (2) according to the obtained temperature data for a future period. The area of ​​the lower surface of the float (3) is adapted to the area of ​​the water in front of the dam (1). The gas pipeline is composed of multiple rigid and horizontally arranged gas sub-pipes spliced ​​together end to end and distributed below the entire lower surface of the float (3). Some of the gas sub-pipes are parallel to the extension direction of the dam (1) and are called the first gas sub-pipe (4). The remaining gas sub-pipes are called the second gas sub-pipe (5). The second gas sub-pipe (5) is perpendicular to the first gas sub-pipe (4). The air blowing holes include a plurality of first air blowing holes distributed on each first gas branch pipe (4) and a plurality of second air blowing holes distributed on each second gas branch pipe (5).

2. The device for alleviating ice formation on the water surface in front of a dam according to claim 1, characterized in that: The first gas distribution pipe (4) is fixedly connected to the corresponding position on the lower surface of the float (3) through multiple first upper connecting ropes (6), and the second gas distribution pipe (5) is fixedly connected to the corresponding position on the lower surface of the float (3) through multiple second upper connecting ropes (7).

3. The device for alleviating ice formation on the water surface in front of a dam according to claim 2, characterized in that: The counterweights include a first counterweight (8) and a second counterweight (9). Multiple first counterweights (8) are arranged below each first gas sub-pipe (4). The first counterweights (8) are fixedly connected to the corresponding first gas sub-pipe (4) via a first lower connecting rope (10). Multiple second counterweights (9) are arranged below each second gas sub-pipe (5). The second counterweights (9) are fixedly connected to the corresponding second gas sub-pipe (5) via a second lower connecting rope (11).

4. The device for alleviating ice formation on the water surface in front of a dam according to claim 1, characterized in that: Multiple first air holes are evenly distributed on the top and side surfaces of the first gas distribution pipe (4), and multiple second air holes are evenly distributed on the top and side surfaces of the second gas distribution pipe (5).

5. A device for alleviating ice formation on the water surface in front of a dam according to claim 4, characterized in that: The plurality of first air-blowing holes distributed on the top surface of the first gas distribution pipe (4) are called first top air-blowing holes (12), and the air-blowing direction of the first top air-blowing holes (12) is arranged vertically upward. The plurality of second air-blowing holes distributed on the top surface of the second gas distribution pipe (5) are called second top air-blowing holes, and the air-blowing direction of the second top air-blowing holes is arranged vertically upward. The plurality of first air-blowing holes distributed on the side surface of the first gas distribution pipe (4) are called first side air-blowing holes, and the air-blowing direction of the first side air-blowing holes is arranged obliquely upward. The plurality of second air-blowing holes distributed on the side surface of the second gas distribution pipe (5) are called second side air-blowing holes, and the air-blowing direction of the second side air-blowing holes is arranged obliquely upward.

6. The device for alleviating ice formation on the water surface in front of a dam according to claim 1, characterized in that: The blower (2) is located at the top of the dam (1). One end of the float (3) is fixedly connected to the dam (1) at the corresponding position through the first anchor chain, and the other end is fixedly connected to the dam (1) at the corresponding position through the second anchor chain. The counterweight is a lead block.

7. The method of operation of the device for alleviating ice formation on the water surface in front of a dam according to any one of claims 1-6, characterized in that: The blower (2) is started, and the blower (2) blows air into the gas pipe through the connecting hose (14) and blows it into the water surface (13) in front of the dam (1) through multiple air holes to disturb the water and alleviate the freezing of the water surface (13) in front of the dam (1). The controller obtains the temperature data for a future period based on the meteorological forecast information of the geographical location of the dam (1) and compares it with the first temperature threshold stored in the controller. When the obtained temperature data for a future period is lower than the first temperature threshold, the controller increases the motor output power of the blower (2). When the obtained temperature data for a future period is higher than the first temperature threshold, the controller decreases the output power of the blower (2) motor in the corresponding future period. The controller compares the obtained temperature data for a future period with the second temperature threshold stored in the controller. When the obtained temperature data for a future period is higher than the second temperature threshold, the controller controls the blower (2) to stop running in the corresponding future period.

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