Ice crossing construction method

FIELD: construction industry.

SUBSTANCE: ice crossing construction method refers to ice-technology industry, and can be used when designing ice crossing meant for load transportation. Snow shall be removed from ice surface, and the latter shall be covered with air-tight film. Space between ice surface and film is ventilated with fan cold ambient air. Cold air flow intensifies heat exchange on ice surface and provides its fast cooling, and thickness increase.

EFFECT: fast putting into operation of ice crossing.

1 dwg

 

The scope to which the invention relates.

The invention relates to the field of hladotehnika and can be used when creating the ice terminal for the transportation of cargo.

The level of technology

Known technical solution (1. Issistance. Lagoudera and hladotehnika. - L.: Sea transport. 1963, s)in which to intensify ice for ice crossing is proposed in advance to clear the ice from snow. The lack of technical solutions is the low rate of increase of the thickness of the ice.

To further increase the speed of increasing the thickness of the ice on the river ice crossing is proposed to artificially reduce the rate of flow of water frozen inclined in ice plates that are perpendicular to the flow (2. EN 2132899 C1, 10.07.1999).

In another technical solution (3. EN 2125136 C1, 20.01.1999) for intensification of ice formation at the site of the crossing place pipe whip through which blow cold air.

The disadvantages of these methods is the complexity of the construction of structures and dismantling.

The closest is a technical solution (4. EN 2170790 C2, 20.07.2001), in which for the intensification of ice formation and increase carrying capacity through holes made in the ice cover, the ice periodically pumped hall who meets the air. The disadvantage of this method is low efficiency in the use of the rivers, where the pressurized cold air will blow over.

Disclosure of inventions

The task of the invention is to accelerate the commissioning of ice crossings.

Technical results achieved by the solution of the problem, lies in the intensification of ice formation and increase the bearing capacity of the ice crossing.

The essential features characterizing the invention.

Restrictive: ice crossing is generated by Stripping the surface of the ice from snow.

Distinctive: above the ice surface place the airtight film, the space between the ice surface and the film blow cold air.

It is known that the intensification of heat transfer on the surface of solid bodies, for example, by increasing the flow velocity of the air temperature is significantly reduced. Therefore, when blowing the surface of the ice cold air increases its thickness greatly accelerated. Intensification of ice formation will help to achieve the thickness required for the safe transportation by ferries, and the specified load capacity.

Brief description of drawings

The drawing shows a diagram of the ventilation space between the surface what hnestly cleared of snow and ice airtight film cold atmospheric air (cross-section).

The implementation of the invention

The method is as follows. The surface of the ice clear of snow and covered with an airtight film. The space between the ice surface and film fan blow cold air. The flow of cold air intensifies the heat transfer on the surface of the ice and provides rapid cooling and an increase in thickness.

Over cleared of snow (1) the ice surface (2) place the airtight film (3). Space (4) between the ice surface and the film is blown by the fan (5) cold atmospheric air before reaching the ice thickness sufficient for reliable transportation.

The way to create icy crossing, which consists in cleaning the surface of the ice from snow, characterized in that above the ice surface place the airtight film and formed the space blow cold air.



 

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