RU49192U1 - SCHEME OF TWO-TUBE HEAT SUPPLY SYSTEM - Google Patents

Abstract

The utility model is aimed at reducing the loss of hot water in the heat supply system. The scheme of the two-pipe heat supply system contains a heat source, main supply and return pipelines, n-heat consumers, a control unit and (n + 1) hot water flow metering units, the outputs of which are connected respectively to the control unit inputs, the first hot water metering unit being installed at the junction of the heat source with the main supply and return pipelines, and the remaining n nodes of metering the flow of hot water are installed respectively at the junction of the supply and return pipelines ebiteley through main heat with supply and return conduits.

Description

The utility model relates to the field of heat engineering and can be used in heating systems of settlements.

Radial, ring and other schemes of two-pipe heat supply systems are known (Handbook of Heat Supply and Ventilation, Budivelnik Publishing House, Kiev, 1976, p.337-338, Fig. 5) containing a heat source connected to the main supply and return pipelines , and heat consumers connected by supply and return pipelines, respectively, with main supply and return pipelines.

The known devices do not localize leaks or gusts that appear on the main pipelines or internal pipelines of heating systems of heat consumers, which leads to large losses of hot water in the heating system

A known scheme of a two-pipe heat supply system (Handbook of heat supply and ventilation, Budivelnik publishing house, Kiev, 1976, p.337-338, Fig. 4), selected as a prototype, containing a heat source connected to the main supply and return pipelines , and heat consumers connected by supply and return pipelines, respectively, with main supply and return pipelines.

The prototype does not localize leaks or gusts that appear on main pipelines or internal pipelines of heating systems of heat consumers.

The disadvantages of the known device are large losses of hot water in the heat supply system.

The utility model solves the problem of reducing losses of hot water in the heat supply system.

The goal is solved due to the fact that the scheme of the two-pipe heat supply system containing a heat source, main supply and return pipelines and n-heat consumers, according to the utility model, additionally contains a control unit and (n + 1) metering units for hot water consumption, the outputs of which are connected respectively, with the inputs of the control unit, the first metering station for hot water flow installed at the junction of the heat source with the main supply and return pipelines, and the remaining n metering stations for hot water water was installed respectively at the junction of the supply and return pipelines of heat consumers with the main supply and return pipelines.

The utility model solves the problem of reducing losses of hot water in the heating network by ensuring timely localization of the place of leaks or gusts in the heat supply system.

Figure 1 presents a diagram of a two-pipe heating system.

Figure 2 presents a diagram of a metering station for hot water consumption.

The scheme of the two-pipe heating system (figure 1) contains. heat source 1, main supply 2 and return 3 pipelines and n-consumers of heat 4 _1, 4 _{2 ...} 4 _n , control unit 5 and (n + 1) hot water metering units 6 _1, 6 _{2, ...} 6 (n + 1), the outputs of which are connected respectively to the inputs of the control unit 5. The first hot water consumption metering unit 6 _{1 is} installed at the junction of the heat source 1 with the main supply 2 and return 3 pipelines, and the remaining n hot water consumption metering units 6 ₂ ... 6 (n + 1) are installed respectively at the connection points of the supply 7 and return 8 pipelines of heat consumers 4 ₁ ... 4n with main supply 2 and return 3 pipelines.

As the control unit 5, a personal computer with a standard communication unit, for example, a modem, can be used.

The node 6 metering the flow of hot water (figure 2) contains hot water meters 9 and 10 connected by outputs to the inputs of a specialized computing device 11, interfaced with a standard communication unit 12, such as a modem. As node 6 metering the flow of hot water can be applied to a standard heat meter.

All circuit elements are standard.

The operation of the device (figure 1) is as follows:

Hot water consumption metering units 6 _{2 ...} 6 _{(n + 1)} register at certain intervals the volumes of hot water passing through the supply 7 and return 8 pipelines of the heating system of each heat consumer 4 ₁ ... 4n. The monitoring results are recorded in memory computing device 11 node 6 metering hot water consumption.

With a closed heating system, in the absence of leaks or gusts in the heating systems of heat consumers, the volumes of hot water passing through the supply 7 and return 8 pipelines are the same. With an open heating system, in the absence of leaks or gusts in the heating systems of heat consumers, the volumes of hot water passing through the supply 7 and return 8 pipelines are the same only at those times when there is no water intake in the heating systems of heat consumers 4 ₁ ... 4n. Monitoring of water flow allows you to allocate such time intervals, for example at night.

The metering unit for the consumption of hot water 6 ₁ installed at the output of the heat source 1 (boiler room or central heating), registers the volumes of hot water passing through the main supply 2 and return 3 pipelines.

The monitoring results are recorded in the memory of the computing device 11 of the node 6 ₁ metering flow of hot water.

The monitoring results from nodes 6 _1, 6 _{2, ...} 6 (n + 1) metering of hot water flow are transmitted to the control unit 5.

According to monitoring data from nodes 6 _{2, ...} 6 (n + 1) of hot water consumption metering, heat consumers are determined in heating systems of which there are leaks or gusts.

According to the general monitoring results from nodes 6 _1, 6 _{2, ...} 6 (n + 1) of hot water consumption metering, leaks or gusts are localized on the main supply 2 or return 3 pipelines by means of conventional arithmetic calculations.

Claims (1)

A scheme of a two-pipe heat supply system containing a heat source, supply and return pipelines and n-heat consumers, characterized in that it further comprises a control unit and (n + 1) hot water metering units, the outputs of which are connected respectively to the inputs of the control unit, the first hot water metering unit is installed at the junction of the heat source with the main supply and return pipelines, and the remaining n hot water metering units are installed respectively in the field Connections supply and return piping to the heat consumer through main supply and return conduits.