RU2382283C2 - Independent single-pipe heating system - Google Patents

Abstract

FIELD: heating systems.

SUBSTANCE: invention refers to heat energy used for heating of buildings, and namely to independent single-pipe heating systems and can be used for independent heating of multi-storeyed apartment building by using energy-independent boilers of outdoor installation with natural heat carrier circulation. Independent single-pipe heating system includes boiler of outdoor installation, flash tank, direct and return lines, risers and heating instruments connected to riser with conducters. In conducter of each heating instrument, besides heating instruments of the ground floor, in riser assembly there additionally installed is circulation accelerator, and each heating instrument, beside heating instruments of the ground floor, is equipped with control valve in front of which there installed is offset riser with section equal to section of conducter; at that, some part of riser after circulation accelerator forms axial closing riser, and framing of heating instruments of the ground floor is made as per complete flow-through scheme without forming an offset riser.

EFFECT: design of independent single-pipe heating system has high operating reliability, independence from electric power available owing to natural circulation of heat carrier, ie without circulation pumps, and uniform heating of rooms on each floor.

1 cl, 2 dwg

Description

FIELD OF THE INVENTION

The invention relates to the field of use of thermal energy for heating buildings, in particular to autonomous single-pipe heating systems, and can be used for autonomous heating of multi-storey apartment buildings using non-volatile outdoor boilers with natural coolant circulation.

State of the art

A known system that includes the supply and return lines communicated respectively with the supply and return risers, and heating elements located in the premises of a multi-story building, interconnected in series and installed in the supply risers when supplying hot coolant from below or in the return risers when supplying hot heat carrier from above (see Engineering networks. Equipment of buildings and structures / Ed. by Yu.P. Sosnin. - M.: Higher School, 2001, p. 316, 317, 327-330).

The disadvantage of this system is the uneven heating of the premises by floors.

The heating system of a multi-storey building is known, including the supply and return pipes, the supply and return risers communicated with them, as well as the heating elements located in the premises of the multi-storey building, while the heating elements are connected to the risers in two ways: where the heating elements are connected only to the supply risers and where the heating elements are connected only to the return risers, the supply and return risers to which the heating elements are connected alternate with each other both in length and in width of the building (see Pat. RU No. 2285206, IPC F24D 12/00, F24 D3 / 02, publ. 10.10.2006).

The disadvantage of this system is the high energy consumption for heating, the uneven heating of the premises by floors.

An autonomous one-pipe heating system is known, including an outdoor boiler, an expansion tank, a direct and return line, numerous risers and heating devices connected to the riser by pipelines (see R.V.Schekin, V.A. Berezovsky, V.A. Potapov. Calculation of central heating systems. Kiev, Vishka Shkola Publishing House, 1975).

The disadvantage of this system is its low reliability, uneven heating of rooms by floors, and high energy costs.

Disclosure of invention

The objective of the invention is to develop an autonomous single-pipe heating system with high reliability, independence from the presence of electricity due to the natural circulation of the coolant, that is, without circulation pumps, uniform heating of the room on floors.

The technical result, which can be achieved using the present invention, is to increase the reliability, reduce energy consumption, uniform heating of the premises on floors.

The technical result is achieved using an autonomous one-pipe heating system, comprising an outdoor boiler, an expansion tank, a direct and return line, risers and heating devices connected to the riser by pipelines, while an additional circulation accelerator is installed in the piping of each heating device in the riser unit, and each the heating device is equipped with a control valve, in front of which an offset riser is installed with a section equal to the supply section, and part of the riser, after the circulation accelerator, forms a repentieth riser piping and heating devices of the first floor is formed by full flow circuit without the control valve and biased riser.

Thus, the technical result is achieved due to the fact that the heating devices have two closing risers, one closing riser is made axial, formed by reducing the cross section of the riser at the installation site of the circulation accelerator, and the second is offset, in front of the control valve, while the heating devices are the first floors are tied in a full flow pattern.

Brief Description of the Drawings

Figure 1 is given an autonomous single-pipe heating system, a diagram of the natural circulation of the coolant, a General view.

Figure 2 is the same, the accelerator of the circulation of the coolant through the heating device.

The implementation of the invention

An autonomous one-pipe heating system consists of a straight line 1 with numerous risers 2, on which heating devices 3 and a return line 4 are installed, while an expansion tank (not shown) is installed at the top of the heating system, connected by a straight riser 2 to an outdoor boiler, for example , KSUV (not shown), and each heating device 3, except for heating devices 3 of the first floor, is equipped with a control valve 5, while the riser assembly 2 additionally has a circulation accelerator 6 at the beginning of the supply of 7 heating devices I 3, and each heating device 3 contains an inlet 8 for the removal of coolant, and the inlets 7 and 8 are additionally connected by an offset riser 9 with a cross section equal to the cross section of the inlets 7, 8, while the cross section of the riser 2 at the installation site of the circulation accelerators 6 is halved forming an axial closing riser 10, and the piping of the heating devices 3 of the first floor is made according to a full-flow circuit without a control valve 5 and an offset riser 9.

Autonomous single-pipe heating system operates as follows.

The coolant from the outdoor boiler through a vertical riser 2 enters the expansion tank and enters numerous risers 2 in a straight line 1, while in the circulation accelerator 6 the kinetic energy of the coolant is partially converted into circulation pressure and the coolant through the supply 7 through the control valve 5 enters the device 3, where, having cooled, through the inlet 8 for the removal of the coolant, it again enters the riser 2, where, mixed with a hotter coolant, it goes down and in the heating device 3 the same floor occurs, and part of the coolant is lowered along the axial closure riser 10 to the next heating device 3, while when the control valve 5 is completely or partially closed, part of the coolant along the inlet 7, offset riser 9, axial closure riser 10 enters the downstream heating appliances 3 without reducing the volume of coolant, which ensures high-quality regulation of heat supply to the downstream heating appliances 3 regardless of the position of the control valve 5, while on p On the ground floor, the heat carrier, which has lost a significant amount of heat, passes through the heating device 3 in a full-flow circuit and enters the return line 4 and then to the outdoor boiler.

The invention in comparison with the prototype and other known technical solutions has the following advantages:

- improving the reliability of the heating system;

- reduction of energy costs;

- uniform heating of rooms by floors.

Claims (1)

An autonomous one-pipe heating system containing an outdoor boiler, an expansion tank, direct and return lines, risers and heating devices connected to the riser by pipelines, characterized in that in the piping of each heating device, a circulation accelerator is additionally installed in the riser node, and each heating device equipped with a control valve, in front of which there is an offset riser with a cross section equal to the supply section, while part of the riser after the circulation accelerator forms an axial closing riser, and the piping heating devices on the first floor are made according to a full-flow scheme without a control valve and an offset riser.

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