SU80476A1 - District heating system - Google Patents

Description

The object of the present invention is a district water rationing system, which differs from the known ones in that the buildings forming a closed loop in the plan are parallel to the main building (yard) facades, a single pipe line is laid. Circulation in which is provided without a special "reverse (circulation) network" device. On the ring network, water moves in a closed loop, which includes: boilers, circulation pumps, as well as internal systems, fed through special inputs.

FIG. 1 shows the trace of heat pipelines in the block along a single-pipe ring system; in fig. 2- sections of the heat pipelines in the sections of the heating system indicated in FIG. one; in fig. 3 shows the movement of the coolant through the internal heating system when clockwise movement of water in the external heat pipelines in FIG. 4-movement of the tenon carrier along the internal heating system when the water in the external heat pipes is counterclockwise; in fig. 5 and b-part. Part of the bypass lines of FIG. 3 and 4; in fig. 7 is a schematic of an apparatus for changing the direction of water movement over an annular network using three-way electrically operated cranes; in fig. 8 is a diagram of a device for changing the direction of moving water over a ring network with the help of electric shutters.

The circulating head, necessary for the operation of the internal heating systems of buildings, is obtained by means of a Zstanokn koцевtsevo network of diaphragms, vents, valves, and similar devices that create local resistance. These devices are located between the forward and reverse pipes of the local heating system. At the point of their connection to the ring network (Fig. 3). If the ring network is located near the building, a special input is not needed, and the ring network is introduced into the building, the internal of which is installed on it local resistance (Fig. 3 n 4).

When the coolant (water) moves in one direction (clockwise), the temperature of the water entering the building decreases as it moves away from the boiler room, similar to the change in water temperature in one-pipe heating systems of buildings three or more floors high. As is known, such a temperature change does not increase the heating surfaces of heating devices in general.

Taking into account that low-rise construction is mainly carried out according to standard projects, it is not practical to rework that, on the inlets they arrange a bypass line providing a constant direction of water in internal systems outside, depending on the direction of water movement in a ring network ..,

In these conditions the water can move either clockwise or against it in a ring network. This creates the same conditions for all buildings. Increasing or decreasing the temperature of the water in the de-icing system alternately every 2–4 hours against the average (calculated) temperature is quite acceptable, since the accumulative capacity of buildings will balance the temperature of the rooms.

When water moves in the external heat pipe in a clockwise direction (Fig. 5), the check valves installed in control units on the bypass lines are closed, valves 2 are open and water flows through the pipe a to the main station.

FIG. 6 check valves 2 are closed and valves / open. Water a hundred to 3 flows through the pipelines b and c.

On the line connecting pipelines a and b, a diaphragm or other resistance 4 is installed (Fig. 5) to supply the required amount of water to the heated building.

Changing the direction of movement of the coolant can be achieved by installing two valves of the three-way type (Fig. 3), which can operate either manually or semi-automatically using an electric device or automatically from an electric device with a clock or similar mechanism. Instead of two three-way

wounds can be installed through four la-4a electric latches

(with | ig. 8). The scheme for the installation of boilers and pumps with the installation of cranes and valves is shown in FIG. 7 and 8.

FIG. 7 and 8 numerals 5 designate boilers; 6-ring. heating system; -circulation pumps; 8-framed line; 9-line to the extender; 10 lines for power and descent.

With a centralized hot water supply of the block with direct water supply, when four pipes are usually laid in non-passage channels with a dull trail of conduits, only two pipes are used for ring tracing, of which two are used for heating and the second is for heating. In this case, as a rule, a diaphragm installation is not required on the pipeline (ring network), since the network is designed to be stubby inside low-rise buildings.

Subject invention

Claims (3)

1. A district water system with an annular network of external pipelines, and a pipe with the fact that the annular network, through which water is supplied to and discharged from heated buildings, is made of a single pipe. 2. The form of the system according to claim 1, characterized in that the pipeline between two branches, in which water flows through the heating of buildings and returns from it, has a hydraulic resistance element in the form of dia (|) rags, valves and the like , in order to ensure the supply to the grader; Water building in the right quantity. 3. The system design form according to claim 1, characterized in that three-way valves or additional bypass lines with valves, for alternating switching of the water flow direction, are installed in the pipelines, as well as in the pipeline, and. control nodes of individual systems heating is installed around the hydraulic resistance element two bypass lines with non-return valves, which are also placed on the main branches from the external piping to the building, in order to maintain a constant direction of water in the heating system regardless of the direction of water flow in the external pipelines. No. 80476  four FIG. 2 Section I T; s: T,: iSi; xi4, .S "SiJKgT Cross section ; 7Г5хт (7гт;: zg Section SHSh  T; lT: - ::: xIYs-4 - FIG. 6 ft  rr