Ice expansion resistant device for water conservancy project

Abstract

The invention provides an ice expansion resistant device for a water conservancy project. The ice expansion resistant device for the water conservancy project comprises a fixed frame, a movable hot plate and a balance weight arranged at the bottom of the fixed frame, wherein the movable hot plate is connected with the fixed frame through a damper, a sealed pressure reducing cavity is formed between the movable hot plate and the fixed frame, the movable hot plate is pushed by external ice expansion pressure to move in the fixed frame along the damper so that the size of the pressure reducing cavity can be changed, heating wires are evenly distributed in side face plates of the fixed frame, and heating wires are evenly distributed in the movable hot plate. The ice expansion resistant device for the water conservancy project further comprises a temperature controller, a displacement sensor arranged on the movable hot plate, and side plate temperature sensors arranged on the side face plates of the fixed frame respectively. The ice expansion resistant device for the water conservancy project is novel in structure, various freezing resistant measures are combined, therefore, no heat losses exist, the energy consumption is extremely low, the environment-friendliness performance is good, maintenance is convenient to conduct, and ice expansion damage can be guaranteed not to occur to water retaining structures in the water conservancy project in the ice period in winter.

Description

technical field [0001] The invention relates to a protection technology for water conservancy projects against ice expansion damage, in particular to an anti-ice expansion device for water conservancy projects that can prevent water retaining structures such as gate panels, water storage towers, and canals from being damaged due to static ice expansion pressure. Background technique [0002] During water storage in water conservancy projects in winter, water-retaining structures such as water storage towers, canals, and steel gates are often damaged by static ice pressure due to extreme cold, resulting in water leakage and dam failure of buildings and unusable gates. [0003] At present, there are many ways to prevent ice swelling and damage to buildings. The typical one is the benzene board method, that is, laying a deformed benzene board on the water facing surface of the building to absorb the static ice pressure caused by ice swelling. Because it needs to be replaced eve...

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Problems solved by technology

[0002] In winter water storage of water conservancy projects, water-retaining structures such as water storage towers, canals and steel gates are often damaged by static ice pressure due to the extreme cold, resulting in water leakage and dam failure of buildings and unusable gates

[0003] At present, there are many ways to prevent ice swelling and damage to buildings. The typical one is the benzene board method, that is, laying a deformed benzene board on the water facing surface of the building to absorb the static ice pressure caused by ice swelling. Because it needs to be replaced every year, the labor cost is high; there is also the bubble blowing method, that is, the pipeline is erected below the water surface of the building, and compressed hot air or high water temperature is sprayed out of the water surface through a submersible pump to form a non-freezing water belt. , to prevent the static ice pressure from being transmitted to the building, the disadvantage is that the water temperature is too low will not lead to the formation of non-freezing water zone; at the same time, the above method will not change due to the water level, while the general reservoir, river and other storage The water level in the pool is not fixed, and it will change at any time according to the rainy season, dry season or artificial use. Generally, the place with water will freeze, and the actual use effect is not ideal.

In addition, there is another way of using heat pipes to melt ice. This method is to add a heat pipe anti-freezing device in the gate panel or gate groove, and use electric heat to melt the ice cubes to prevent damage to the gate due to freezing. Although the method can achieve a good effect of melting ice, due to the use of electric heating to melt ice, its power consumption is large and the cost is high

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