RU2809522C1 - Method for snow melting - Google Patents

Abstract

FIELD: snow melting.

SUBSTANCE: methods for forced melting of snow used in various sectors of the national economy. A method for melting snow includes supplying snow to a container of a snow-melting unit, draining water from a container of a snow-melting unit, and purifying the discharged water. Snow is melted due to its contact with finned pipes placed inside the container of the snow-melting unit and heated by the coolant supplied by the circulation pump from the exhaust gas heat recovery unit of the gas pumping unit of the compressor station of the main gas pipeline.

EFFECT: snow melting at the compressor station of the main gas pipeline without the use of additional energy sources.

1 cl, 1 dwg

Description

The invention relates to methods for forced melting of snow and can be used in various sectors of the national economy.

A known installation for melting snow includes a snow-melting chamber equipped with means for mixing snow with hot water, nozzles for supplying hot water located in its upper part, and a pipeline for draining water for heating, a heat exchanger for heating water, pumping equipment, characterized in that that it is additionally equipped with a receiving hopper, a device for grinding snow located under the receiving hopper, a device for collecting solid household waste, equipped with a grate and installed between the snow-melting chamber and the heat exchanger, while the snow-melting chamber is made in the form of a pipe with screws, and nozzles for supplying hot water into the snow-melting chamber is placed along its entire length, and in the lower part there are slotted holes for draining water into a tray attached to the snow-melting chamber and equipped with a pipeline for supplying water to the device for collecting solid household waste (patent RU No. 2335587, publ. 10.10. 2008). The disadvantage of this method is the need to use an additional energy source to heat water, which significantly increases operating costs.

A device for forced snow melting is known, consisting of a snow-melting chamber for receiving and melting snow, containing a bottom, a pump for supplying water and watering snow, and a device for removing water, including an outlet pipeline, characterized in that it consists of at least one a snow-floating chamber containing a bottom with a slope and additionally a mechanized receiving hopper with rotary hammer crushers, as well as a sand trap in which partitions are located with the ability to ensure water circulation (patent RU No. 2233950, published on August 10, 2004).

The disadvantage of this method is the need to use an additional energy source to heat water, which significantly increases operating costs.

The closest analogue, taken as a prototype, is a method of forced snow melting, which consists in filling a bath with snow, melting it using combustion products in liquid or gaseous fuel burners, and removing melt water from the bath into the sewer system, characterized in that the products combustion of liquid or gaseous fuel in burners, the bottom of the bath, made in the form of a profiled sheet, is heated from the outside, under the protrusions of which these burners are installed, and in the depressions there are holes for draining melt water, and the snow melts due to direct contact of the bottom of the bath with the snow, and the resulting In this case, the melt water is immediately, without further heating, removed from the bath through these holes in the bottom of the bath between the combustion zones of the burners of this liquid or gaseous fuel into a chamber for melt water located under the burners with a drain hole, with sand inclusions that may occur in contaminated snow, can settle in the chamber for melt water, and settled melt water can accumulate and be discharged through the drain hole, pipe and hose to other places (RU patent No. 2574680, publ. 02/10/2016).

The disadvantage of this method is the need to use an additional energy source to heat water, which significantly increases operating costs.

The technical result of the proposed method is the melting of snow at the compressor station of the main gas pipeline without the use of additional energy sources.

The specified technical result is achieved in a method for melting snow, which consists in supplying snow to the container of a snow-melting installation, draining water from the container of a snow-melting installation and purifying the discharged water, while the snow is melted due to its contact with finned pipes placed inside the container of the snow-melting installation and heated by a coolant, supplied by the circulation pump from the exhaust gas heat recovery unit of the gas pumping unit of the compressor station of the main gas pipeline.

At compressor stations of main gas pipelines equipped with gas pumping units, heat utilizers are used, which are designed to transfer heat from the exhaust gases of a gas pumping unit in a recovery heat exchanger to water in order to supply heat to the compressor station and external consumers - adjacent residential settlements, agricultural facilities.

Figure 1 shows a diagram of the invention, where: 1 - exhaust heat recovery unit, 2 - inlet pipeline, 3 - circulation pump, 4 - container of the snow melting plant, 5 - finned pipes, 6 - drain pipeline, 7 - outlet pipeline, 8 - cleaning device.

The method of melting snow is carried out as follows. The exhaust gas heat reclaimer 1 transfers thermal energy from the exhaust gases of the gas pumping unit to the coolant. Through the inlet pipeline 2, the heated coolant with the help of a circulation pump 3 enters the finned pipes 5 located inside the tank 4 of the snow melting plant. The snow for melting is fed from above into the container of the snow-melting installation 4, after which it falls on the finned pipes 5 heated by the coolant and due to contact with them under the influence of the resulting heat, the snow turns into a liquid aggregate state. The resulting liquid is supplied through pipeline 6 to the treatment device 8, that is, water is removed from the tank of the snow melting plant. The cooled coolant re-enters the heat exchanger 1 through the outlet pipeline 7.

Thus, the proposed new method makes it possible to convert snow into a liquid state of aggregation by using the heat of the heat recovery devices of the gas pumping unit of the compressor station without the use of additional energy sources.

Claims (1)

A method of melting snow, which consists of supplying snow to the container of a snow-melting installation, draining water from the container of a snow-melting installation and purifying the discharged water, characterized in that the snow is melted due to its contact with finned pipes placed inside the container of the snow-melting installation and heated by a coolant supplied by the circulation pump from the exhaust gas heat recovery unit of the gas pumping unit of the compressor station of the main gas pipeline.

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