Aeration deicing device for air shield dam

Abstract

The utility model relates to the technical field of air shield dams, and discloses an air shield dam aeration deicing device which comprises a gate bottom plate, a plurality of restraining belts are fixedly connected to the top of the gate bottom plate, a shield plate is fixedly connected between the tops of the restraining belts, and an icebreaking assembly is installed on the front portion of the shield plate. The ice breaking assembly comprises an air compressor, a temperature rising belt and side branch air pipes, the air compressor is installed outside the gate bottom plate, the output end of the air compressor is connected with an air storage tank through a pipeline, the output end of the air storage tank is fixedly connected with a main air conveying pipe, the temperature rising belt is installed on the back face of the shield plate, a temperature sensor is fixedly connected to the temperature rising belt, and the side branch air pipes are fixedly connected with the main air conveying pipe. The side branch air pipes are installed on the front face of the shield plate in the water flow direction. According to the air shield dam, compressed air can be uniformly sprayed to an ice layer around the air shield dam through cooperative work of the air compressor, the air storage type air tap and the side branch air pipes. The pressure-adjustable nozzle can adjust air injection parameters according to the actual condition of an ice layer, so that the ice layer is rapidly broken and melted under the impact and disturbance of high-pressure air flow.

Description

TECHNICAL FIELD

[0001] The utility model relates to air shield dam technical field especially relates to a kind of air shield dam aeration deicing device. BACKGROUND

[0002] Winter in northern region of our country is cold and dry, and some air shield dam requires normal dam operation in winter, but in winter dry season, upstream water quantity is small or even no, if air shield dam normal storage, at this time, no overflow or overflow is very small, if ice forms on the water surface in front of dam, ice layer moving with water flow will form impact dynamic pressure to air shield dam, increase the load of air shield dam support system, and ice layer in front of dam will form very large static ice pressure, and pressure will further increase in the process of expansion and thickening, so ice formation on water surface in winter is the biggest influencing factor of air shield dam safety, stable operation.

[0003] In severe cold region, small water flow overflow will also freeze, form ice column and hang upside down on gate eave, with the extension of time, ice column becomes thick and long, and the situation is serious, and it can be vertical to downstream dam bottom plate, and resist gate leaf to cause not normal dam, and further affect the normal operation of air shield dam, and therefore a kind of air shield dam aeration deicing device is proposed. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a kind of air shield dam aeration deicing device, to improve the problem of gate leaf leading to normal dam in prior art, and further affect the normal operation of air shield dam.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a kind of air shield dam aeration deicing device, including gate bottom plate, the top of the gate bottom plate is fixedly connected with a plurality of suppression zone, a plurality of the top of the suppression zone is fixedly connected with shield plate, the front of the shield plate is installed with ice breaking assembly;

[0006] The ice breaking assembly includes air compressor, temperature rising zone and side branch air pipe, the air compressor is installed outside the gate bottom plate, the output end of the air compressor is connected with gas storage tank through pipeline, the output end of the gas storage tank is fixedly connected with main gas pipe, temperature rising zone is installed on the back of the shield plate, temperature sensor is fixedly connected on the temperature rising zone, side branch air pipe is installed on the front of the shield plate along water flow direction, a plurality of gas storage type air nozzle is installed on the outer wall of the side branch air pipe, the bottom of the gas storage tank is connected with adjusting assembly through pipeline.

[0007] As a further description of the above technical scheme:

[0008] The adjusting assembly comprises a pressure sensor, the pressure sensor is arranged in front of the gas storage tank, a plurality of pipes are arranged at the bottom of the pressure sensor, a pneumatic valve and a hand valve are sequentially arranged on the outer wall of the pipes from top to bottom, a PPR joint is arranged at the bottom of the pipes, a filter is arranged at the output end of the pressure sensor, and a check valve is arranged at the output end of the filter.

[0009] As a further description of the above technical scheme:

[0010] The control box is arranged in front of the air compressor, and the safety valve, pressure gauge and precision regulating valve are arranged on the gas storage tank.

[0011] As a further description of the above technical scheme:

[0012] The temperature rising belt and the side branch air pipe are both installed on the shield plate through the U-shaped clamps.

[0013] As a further description of the above technical scheme:

[0014] The gas storage type air nozzle is composed of a connecting pipe, an air bag and a pressure-adjustable nozzle.

[0015] As a further description of the above technical scheme:

[0016] The side branch air pipe is composed of a small-diameter PE pipe, an air nozzle connecting port and an end head blanking plate.

[0017] As a further description of the above technical scheme:

[0018] The main gas conveying pipe is composed of a large-diameter PE pipe, a branch pipe connecting port and an end head blanking plate.

[0019] The utility model has the advantages of the following beneficial effects:

[0020] 1、The air compressor, the gas storage type air nozzle and the side branch air pipe cooperate to uniformly spray compressed air to the ice layer around the air shield dam, the pressure-adjustable nozzle adjusts the air injection parameters according to the actual condition of the ice layer, the ice layer is rapidly broken and melted under the impact and disturbance of high-pressure air flow, different thickness and hardness of the ice layer are effectively broken, the ice removal efficiency is greatly improved, the air shield dam can normally operate in the cold winter environment, and the related water area is maintained smooth and safe. DRAWINGS

[0021] Figure 1 A perspective view of the air shield dam aeration deicing device is provided in the utility model;

[0022] Figure 2 For Figure 1 The enlarged view of A in the middle;

[0023] Figure 3 ForFigure 1 Enlarged view at B;

[0024] Figure 4 A temperature rising zone schematic diagram of the air shield dam aeration deicing device is provided in the utility model.

[0025] Legend:

[0026] 1, control box; 2, gas storage tank; 3, precision regulating valve; 4, filter; 5, pneumatic valve; 6, PPR joint; 7, hand valve; 8, pressure sensor; 9, check valve; 10, main gas pipe; 11, suppression zone; 12, shield plate; 13, temperature rising zone; 14, U-shaped clamp; 15, temperature sensor; 16, gate bottom plate; 17, side branch gas pipe; 18, gas storage type air nozzle; 19, air compressor. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] With reference to Figures 1-3 The utility model provides an embodiment: a kind of air shield dam aeration deicing device, including gate bottom plate 16, gate bottom plate 16 is the main place of air shield dam installation, and the top of gate bottom plate 16 is fixedly connected with multiple suppression zones 11, suppression zone 11 can effectively limit the excessive displacement of shield plate 12 under the impact of water flow or other external force, ensure the relative stability of the position of shield plate 12, so as to provide basic guarantee for the stable operation of entire deicing device, and the top of multiple suppression zones 11 is fixedly connected with shield plate 12, shield plate 12 as core component, on the one hand, its own structural characteristics can withstand certain water pressure and external force, on the other hand, when working with ice breaking assembly, ice layer is handled using aeration etc., and ice breaking assembly is installed in the front of shield plate 12, and ice breaking assembly directly acts on the ice layer of river surface where shield plate 12 is located, effectively breaks ice layer by specific structure and working mode, guarantees the normal operation and safety performance of shield plate 12, prevents ice layer from causing extrusion damage to shield plate 12 and other adverse effects;

[0029] With reference to Figure 4The ice breaking assembly comprises an air compressor 19, a temperature increasing belt 13 and side branch air pipes 17. The air compressor 19 is installed outside the gate bottom plate 16, and the output end of the air compressor 19 is connected with a gas storage tank 2 through a pipeline. The air compressor 19 generates compressed air as a gas source to provide a power basis for the whole ice removing device. The compressed air is stably transmitted to the gas storage tank 2 through the pipeline for storage and pressure stabilization, so as to ensure the continuity and stability of the ice removing operation. The output end of the gas storage tank 2 is fixedly connected with a main gas conveying pipe 10. The main gas conveying pipe 10 is used as a main gas conveying trunk line to convey the compressed air treated by the adjusting assembly to the area where the shield plate 12 is located on a large scale. The large pipe diameter can meet the gas demand of multiple side branch air pipes 17, reduce the pressure loss in the gas transmission process, ensure that each side branch air pipe 17 obtains sufficient gas pressure and gas volume, realize efficient aeration ice removing operation, and the temperature increasing belt 13 is installed on the back of the shield plate 12. The temperature increasing belt 13 can heat the back of the shield plate 12 in a low temperature environment to prevent the dam body from having problems such as material performance degradation or icing adhesion due to low temperature. The temperature increasing belt 13 is fixedly connected with a temperature sensor 15. The temperature sensor 15 monitors the temperature of the back of the shield plate 12 in real time, feeds back the temperature data to the control system, so as to accurately control the working state of the temperature increasing belt 13 according to the actual situation. The side branch air pipe 17 is installed on the front of the shield plate 12 along the water flow direction. The side branch air pipe 17 divides and conveys the compressed air treated by the adjusting assembly of the gas storage tank 2 to each area on the front of the shield plate 12, so that the aeration ice removing effect can be uniformly distributed on the ice layer around the shield plate 12, and the ice removing efficiency and effect are improved. The side branch air pipe 17 is provided with a plurality of gas storage type air nozzles 18 on the outer wall. After receiving the compressed air conveyed by the side branch air pipe 17, the air nozzle 18 can efficiently spray the compressed air to the ice layer. Through the impact and disturbance of the airflow, the ice layer is broken and melted, and the ice layer around the shield plate 12 is effectively broken. The adjusting assembly is connected with the gas storage tank 2 through a pipeline.

[0030] With reference to Figure 2, the adjusting assembly includes a pressure sensor 8 arranged in front of the gas tank 2, the pressure sensor 8 monitors the gas pressure in the pipeline in real time and converts the pressure signal into an electric signal transmitted to the control system, the control system controls the subsequent valve and other adjusting components according to the comparison between the preset pressure value and the actual pressure value, ensures that the gas pressure of the entire deicing device is within the safe and efficient working range, and guarantees the stable operation and deicing effect of the device. The bottom of the pressure sensor 8 is provided with a plurality of pipelines, the outer wall of the pipeline is sequentially provided with a pneumatic valve 5 and a manual valve 7 from top to bottom, the pneumatic valve 5 can quickly and accurately adjust the gas flow and pressure in the pipeline according to the instruction of the control system, realize the automatic gas regulation function, in the case of emergency or control system failure, the manual valve 7 can be used as a backup control means, manually operated by the operator to adjust the on-off and flow of the gas, improve the reliability and operation flexibility of the device, the bottom of the pipeline is provided with a PPR joint 6, the PPR joint 6 is used to connect pipelines of different specifications or materials, ensure the tightness and stability of the pipeline connection, reduce the risk of gas leakage at the connection, at the same time, its good corrosion resistance and high temperature resistance can adapt to the complex environmental conditions of the deicing device, guarantee the long-term reliability of the pipeline connection part. The output end of the pressure sensor 8 is provided with a filter 4, which can effectively filter out impurities, moisture and other foreign matters in the compressed air, prevent these impurities from entering the subsequent valves, air nozzles and other precision components, avoid the accumulation of impurities causing component blockage, wear or failure, prolong the service life of each component of the device, improve the overall reliability and stability of the device. The output end of the filter 4 is provided with a check valve 9, the check valve 9 allows one-way gas flow, prevents gas backflow to the gas tank 2 or other upstream components, guarantees the correctness and stability of the gas flow direction, avoids the problems of pressure fluctuation and component damage caused by gas backflow. The end of the check valve 9 away from the pressure sensor 8 is provided with a main gas pipeline 10, the main gas pipeline 10 as the main gas transmission trunk line, large-scale transports the compressed air treated by the adjusting assembly to the area where the shield plate 12 is located, its larger pipe diameter can meet the gas demand of multiple side branch pipes 17, reduce the pressure loss in the gas transmission process, guarantee each side branch pipe 17 to obtain sufficient gas pressure and gas quantity, realize efficient aeration deicing operation.

[0031] Referring to Figure 2The control box 1 is arranged in front of the air compressor 19, and the control box 1 is used as a control center of the whole device, integrates various control circuits, controllers and signal processing modules, receives signals from temperature sensors 15, pressure sensors 8 and other sensors, controls the air compressor 19 and the pneumatic valve 5 according to preset control logic and algorithms, realizes automatic operation, intelligent adjustment and fault monitoring and alarm of the device, and improves operation convenience and operation reliability of the device. The safety valve, the pressure gauge and the precision regulating valve 3 are arranged on the gas storage tank 2. The safety valve is automatically opened when the pressure in the gas storage tank 2 exceeds the safety threshold, so as to release the excess gas, prevent the gas storage tank 2 from exploding due to overpressure and ensure safe operation of the device. The pressure gauge directly displays the real-time pressure in the gas storage tank 2, so that the pressure state of the gas storage tank 2 can be known at any time, and a reference basis is provided for operation and maintenance. The precision regulating valve 3 can accurately regulate the output pressure of the gas storage tank 2 within a certain range.

[0032] With reference to Figure 4 The heating belt 13 and the side branch air pipe 17 are both installed on the shield plate 12 through the U-shaped clamps 14. The U-shaped clamps 14 are simple in structure and convenient to install, can firmly fix the heating belt 13 and the side branch air pipe 17 on the shield plate 12, ensure that the heating belt 13 and the side branch air pipe 17 will not displace or fall off under the action of external forces such as water flow impact and ice layer extrusion, and protect normal working state of the heating belt 13 and the side branch air pipe 17. Meanwhile, the installation mode of the U-shaped clamps 14 will not cause great damage to the main structure of the shield plate 12, and will not affect the overall performance and service life of the shield plate 12.

[0033] With reference to Figure 3 The gas storage type air nozzle 18 is composed of a connecting pipe, an air bag and a pressure adjustable nozzle. The connecting pipe is used as an intermediate link for gas transmission, stably transmits compressed air in the side branch air pipe 17 to the air bag, and the air bag can store a certain amount of compressed air, gradually expands and stores energy under the action of gas pressure, and when the pressure reaches a certain degree, the stored compressed air is sprayed out in the form of high-speed and high-pressure gas flow through the pressure adjustable nozzle. The pressure adjustable nozzle can be adjusted according to actual ice removal needs.

[0034] With reference to Figure 3 The side branch air pipe 17 is composed of a small-diameter PE pipe, an air nozzle connecting port and an end head blanking plate. The small-diameter PE pipe has good corrosion resistance, flexibility and gas sealing property, can stably transmit compressed air under complex water environment and low temperature conditions, and reduces the risk of gas leakage. The air nozzle connecting port is convenient to connect with the gas storage type air nozzle 18, ensures the tightness and stability of the connection, and enables compressed air to be smoothly transmitted from the side branch air pipe 17 to the gas storage type air nozzle 18. The end head blanking plate seals the end of the side branch air pipe 17, prevents gas leakage, ensures stable gas pressure in the side branch air pipe 17, and enables gas to flow and be distributed in the side branch air pipe 17 according to a predetermined path and pressure and be distributed to each gas storage type air nozzle 18.

[0035] Referring to Figure 1 and Figure 2 , the main gas pipe 10 is composed of a large-diameter PE pipe, a branch pipe connecting port and an end head blocking plate. The large-diameter PE pipe can bear a large flow of compressed air, reduce the pressure loss in the gas transmission process, and ensure that the gas can be quickly and efficiently delivered from the adjusting assembly to each side branch gas pipe 17, meeting the demand for simultaneous gas use of multiple side branch gas pipes 17; the branch pipe connecting port is used for connecting with the side branch gas pipe 17, and a reasonable connecting structure is designed to ensure the tightness and reliability of the connection, so that the gas can be uniformly and stably distributed to each side branch gas pipe 17; the end head blocking plate closes the end of the main gas pipe 10 to prevent gas leakage and maintain the stability of the air pressure in the main gas pipe 10, ensuring the normal operation of the entire gas delivery system,

[0036] Referring to Figure 4 , the shield plate 12 is provided with an air bag at the back. The air bag is inflated to expand itself to support the shield plate 12 to block water. The air bag collapses after being deflated. The air bag is located below the shield plate to avoid damage to the dam bag by river sand, ice and the like.

[0037] Working principle: in the manual control mode, the air compressor 19 first inputs high-pressure gas into the gas storage tank 2, the gas storage tank 2 inputs the high-pressure gas into the main gas pipe 10 arranged along the dam axis, the main gas pipe 10 injects the high-pressure gas into the side branch gas pipe 17 arranged along the water flow direction, and the high-pressure gas in the side branch gas pipe 17 enters the storage cavity of the gas storage type air nozzle 18. When the high-pressure gas in the cavity reaches the set pressure value, the air nozzle discharges it to form a large air bubble with a diameter of 200-300 mm, which quickly rises to the water surface under the buoyancy of water and bursts, and the ice layer is broken under the impact force of the air bubble and the high temperature and high pressure generated when the air bubble bursts. If the water surface is not frozen, periodic release of the air bubble can prevent the water surface from freezing.

[0038] When the overflow flow of the dam body is small, in order to prevent the water flow from freezing, the eave heat preservation device is started to raise the temperature of the eave of the shield plate to 5-10°, so as to ensure that this place does not freeze, thereby avoiding the accident that the frozen ice column pushes against the shield plate to cause the dam to be unable to collapse.

[0039] In the automatic control mode, the control box 1 is opened, the critical water temperature and air temperature are set according to the local climate conditions, the control mode is set to automatic mode, the air compressor 19 is started to pressurize the high-pressure air into the gas storage tank 2 according to the temperature collected by the temperature sensor 15, the pneumatic valve 5, the PPR joint 6 and the manual valve 7 are inflated according to the set value, and the gas pressure of the gas storage type air nozzle 18 reaches the set value, then the large air bubble is released at a regular time to prevent the water surface from freezing or break the ice surface.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A de-icing device for an air-shield dam, comprising a gate bottom plate (16), characterized in that: The top of the gate bottom plate (16) is fixedly connected to a plurality of inhibition strips (11), and a shield plate (12) is fixedly connected between the tops of the plurality of inhibition strips (11). An ice-breaking component is installed at the front of the shield plate (12). The ice-breaking assembly includes an air compressor (19), a heating belt (13), and a side air pipe (17). The air compressor (19) is installed outside the gate bottom plate (16). The output end of the air compressor (19) is connected to an air storage tank (2) through a pipe. The output end of the air storage tank (2) is fixedly connected to a main air supply pipe (10). The heating belt (13) is installed on the back of the shield plate (12). A temperature sensor (15) is fixedly connected to the heating belt (13). The side air pipe (17) is installed on the front of the shield plate (12) along the water flow direction. Multiple air storage nozzles (18) are installed on the outer wall of the side air pipe (17). The bottom of the air storage tank (2) is connected to an adjustment assembly through a pipe.

2. The air shield dam aeration de-icing device according to claim 1, characterized in that: The regulating component includes a pressure sensor (8), which is located in front of the gas storage tank (2). Multiple pipes are installed at the bottom of the pressure sensor (8). Pneumatic valves (5) and manual valves (7) are installed on the outer wall of the pipes from top to bottom. A PPR connector (6) is installed at the bottom of the pipes. A filter (4) is installed at the output end of the pressure sensor (8). A check valve (9) is installed at the output end of the filter (4).

3. The air shield dam aeration de-icing device according to claim 1, characterized in that: The air compressor (19) is equipped with a control box (1) in front of it, and the air tank (2) is equipped with a safety valve, a pressure gauge and a precision regulating valve (3).

4. The air shield dam aeration de-icing device according to claim 1, characterized in that: The heating zone (13) and the lateral bronchus (17) are both installed on the shield plate (12) by U-shaped clips (14).

5. The air shield dam aeration de-icing device according to claim 1, characterized in that: The gas-storage nozzle (18) consists of a connecting pipe, an air bladder, and a pressure-adjustable nozzle.

6. The air shield dam aeration de-icing device according to claim 1, characterized in that: The lateral bronchus (17) consists of a small-diameter PE pipe, an air nozzle connection port, and an end plug.

7. The air shield dam aeration de-icing device according to claim 2, characterized in that: The main gas pipeline (10) consists of a large-diameter PE pipe, a branch pipe connection port, and an end plug.

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