RU179225U1 - COMBINED GAS WATER HEATER - Google Patents

Abstract

The utility model relates to the field of communal and industrial heat energy. A combined gas apparatus comprising a cladding casing, a heat exchanger, a copper coil for heating water, located inside the heat exchanger body, a combustion device, a smoke exhaust device, water inlet pipes, one on each side, and a discharge pipe into heat exchanger casing, tube sheets in which heat exchanger tubes are installed, washed from the outside by a heat carrier, turbulators located in heat exchange channels pipes, consisting of helical plates with an equal spacing, which slow down and twist the combustion products.

Description

The utility model relates to the field of communal and industrial heat power.

A known heating gas apparatus with a water circuit, in which the heat exchanger is a four-row packet of pipes through which the products of combustion move, and from the outside are washed with water filling the apparatus (G. Kyazimov, Fundamentals of gas economy. M. Higher School, 1987, p. . 240).

The disadvantage of this device is the difficulty of manufacturing and achieving the optimal ratio between the amount of heat transfer and the required amount of traction.

The closest in technical essence to the proposed utility model is a household gas heating apparatus with a water circuit manufactured by CJSC “Rostovgazapparat” AOGV-17, 4, 3, model 2210, GOST 20219-74, TU 51-20-25-92 (see. Manual manual "Gas household heating apparatus with a water circuit", p. 6-7).

The heat exchanger of the gas apparatus contains a vertical casing with an inlet and outlet pipe, tube sheets, in which heat-exchange tubes are fixed, evenly spaced around the circumference, turbulators are inserted into the pipes, which are single plates with bent (in different directions) semicircular vanes blocking the pipe section, at the manufacture of which holes are formed for the passage of combustion products.

The heated medium enters the housing through the inlet pipe, washes the pipes and exits through the outlet pipe. The coolant - combustion products, enters the pipes, passes through the turbulators and, as a result of heat exchange, giving heat to the heated medium, leaves the apparatus.

The disadvantage of this apparatus is that with sufficiently large diameters of the heat transfer pipes to overlap the pipe section, the blades are made of the appropriate size, therefore, in the manufacture they get large openings for the passage of the coolant, which leads to an increase in the rate of passage of the combustion products and deterioration of heat transfer.

Reducing the diameter of the pipes leads to an increase in their number and an increase in the complexity of manufacturing and cost of products.

In addition, the need to obtain the desired heat transfer at high gas velocities leads to an increase in heat transfer area and installation dimensions.

The objective of the utility model is to intensify the heat transfer process of the heating apparatus.

The technical result is achieved by the fact that in the apparatus a combined gas water heating boiler comprising a cladding casing, a heat exchanger, a copper coil for heating household water, located inside the heat exchanger body, a combustion device, a smoke exhaust device, water inlets, one on each side, and outlet pipe in the heat exchanger housing, tube sheets in which heat exchanger pipes are installed, washed from the outside by the heat carrier, turbulators are placed in the channel x heat exchange tubes, consisting of a helical plate with equally spaced pitch, and twist that retarding combustion products, giving them an opportunity to more fully convey the coolant through the heat pipe walls.

In FIG. 1 shows a combined gas water heating apparatus (longitudinal section).

The apparatus is a combined gas water-heating apparatus, comprising a cladding casing 1, a heat exchanger 2, a copper coil 16 for heating water for household use, located inside the housing 5 of the heat exchanger 2, a furnace device 3, a smoke exhaust device 4, water inlets 6, one on each side, and a discharge pipe 7 on the housing 5 of the heat exchanger 2, tube sheets 8, 9 in which the heat exchange pipes 10 are installed, which are washed from the outside by the heat carrier 12, and turbulizers 11 are placed in the channels of the heat exchange pipes 10, s facing plates of equally spaced helical pitch, and twist that retarding combustion products 13, enabling them to more fully convey heat to the wall 12 through the tubes 10.

The combined gas water heating apparatus works as follows: the coolant 12 enters the housing 5 through the pipe 6, washes the pipes 10 and exits through the pipe 7; heating of water for domestic use occurs when a stream of cold water 14 passes through a copper coil 16 located inside the heat exchanger 2, while the copper coil 16 through its walls transfers heat from the heated coolant 12 to the incoming water stream 14, and already at the outlet of the coil 16 we get heated water 15, suitable for domestic use; the flow of combustion products 13, enters from the combustion device 3 into heat exchange pipes 10, passes through turbulators 11, which slow down and twist the combustion products 13, allowing them to more fully transfer heat to the heat carrier 12 through the walls of the pipes 10, the exhaust products of combustion leave the heating apparatus through smoke exhaust device 4.

Claims (1)

The apparatus is a combined gas water-heating apparatus, comprising a cladding casing, a heat exchanger, a copper water heating coil located inside the heat exchanger body, a combustion device, a smoke exhaust device, water inlet pipes, one on each side, and a discharge pipe in the heat exchanger body, tube sheets in which are installed heat-exchange pipes, washed from the outside by a coolant, characterized in that turbulators, consisting of helical plates with equal aspolozhennym step that retarding combustion and swirled.

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