RU15775U1 - AUTOMATED SYSTEM FOR MEASURING, ACCOUNTING AND REGULATING THE COSTS OF THE HEAT CARRIER FOR HEAT SUPPLY OF THE CONSUMER GROUP - Google Patents

Abstract

An automated system for measuring, metering and regulating the flow of heat carrier for heat supply to a group of consumers, containing a heat source, supply and return pipelines of a closed heat network with connected by-pass supply and return pipelines of heat supply for each consumer, a metering unit, metering and regulating the flow of heat carrier with a flow sensor , temperatures and pressures installed on the direct and return pipelines, flow, pressure and differential pressure regulators are circulating the first pump, a heat and energy processor associated with sensors and regulators, characterized in that the measuring unit, metering and regulation of the coolant is installed at the first heat supply facility after connecting to the supply and return pipelines, and additional coolant flow controllers are installed on the outlet supply pipelines of the following heat consumption objects, on the outlet temperature sensors are installed in the return pipelines, and in the sections of the supply pipeline behind each outlet pipe, with the exception of the last him, installed flow sensors.

Description

Automated system

measuring, accounting and regulating the flow of coolant for heat supply to a group of consumers.

The utility model relates to the field of heat supply for industrial facilities and housing and communal services and can be used to measure, account and regulate the flow of coolant.

Existing systems for measuring, metering and regulating the flow rate of the coolant are installed on each of the heat nodes of consumers and usually contain flow, temperature and pressure sensors on the supply and return pipelines, flow and pressure regulators. Sensors and regulators are connected to the heat and power processor of the system,

providing a solution to the problems of commercial accounting of coolant flow rate, equipment condition monitoring, position of flow rate and pressure actuators, flow rate control using flow rate and pressure control actuators.

There is a method of constructing a metering and regulation system for the heat supplied to consumers, adopted as a prototype (V.P. Turkin, “Automatic heating water systems for residential and public buildings, p. 80, M. Stroyizdat, 1976), where measurement and metering units and coolant flow control are installed at each of the consumption objects. These components include flow sensors,

MKI / I-F24D 19/10

h, temperature, pressure, flow and pressure regulators, circulating

pumps, heat power processors associated with sensors and regulators. Information from all nodes goes to a single control room, which ensures dispatching of the microdistrict (district) where heat consumption facilities are located.

The installation of metering, control and regulation nodes, which form a complex system of measurement, metering and regulation, leads to a significant redundancy of measuring instruments, regulation and hydraulic equipment, which leads to significant costs for equipment and devices, and also causes difficulties in the operation of the entire system.

The objective of the utility model is to eliminate the redundancy of instrumentation and equipment in the implementation of automated s. Izmer-Epia, metering and regulation of heat mixel for heat supply to a group of consumers.

The technical result is achieved by the fact that the automated system for measuring, metering and regulating the flow rate of a heat carrier contains a heat source (heat generator or heat substation of a heat and power center), supply and return pipelines of a closed heating network with connected by-pass feed and return heat supply pipelines of each consumer group (objects 1 -nM), measuring unit, commercial metering and regulation of coolant flow with sensors for flow rate, temperature, pressure, set installed on the supply and return pipes,

ddao / o / o

2 and regulators. The measurement, accounting and regulation unit is installed on

the first heat consumption facility to connect to the supply and return pipelines. Behind the discharge supply pipe, a flow transducer is installed on the supply pipe, and at subsequent objects behind the discharge supply pipes, flow sensors (with the exception of the latter for connection to the supply pipe). Flow controllers and temperature sensors are installed on the return pipelines. All sensors and regulators are connected to the heat and power processor.

The heat carrier measuring, metering and regulation unit installed at the first heat carrier object connected to the supply and return pipelines is a single commercial calculation node between the heat carrier supplier and a group of consumers, and the presence of sensors behind each by-pass supply pipe of each heat consumer makes it possible to determine the heat consumption by each specific consumer .

The drawing shows a functional diagram of an automated system for measuring, accounting and regulating the flow of coolant during heat supply to a group of consumers.

The automated system contains a unit for measuring, accounting and regulating U installed on the first object connected to the supply and return pipelines and containing flow sensors Q-i, Q2, QS. flow regulators PP- | and PP2, temperature sensors T-, T2, pressure sensors P connected to the heat and power processor TEP. Heat objects are connected in series through from aiogy

3 water supply and underwater return pipelines to the feed and

return flow pipe

The considered automated system for measuring, accounting and regulating the flow of coolant works as follows.

The metering, metering and flow control unit provides commercial metering of the heat consumed by the entire group of heat consumption objects Q and the heat consumption of each of the Qm-2 objects. where is the object number,

and QN QN 2 The circulation pulser NTS provides through a non-return valve the mixing of network water with uncooled water. Coefficient of mixing. L is determined by adjusting the pressure "on itself p-pressure control pressure PP- |. The heat consumption in each of the objects is regulated by the regulator РР2 РРм + 1 p ° the amount of heat consumed by each of the heat consumption objects.

The scheme used eliminates the redundancy of measuring instruments and regulating and processing sensor signals. The structure of the system allows you to minimize the cost of instrumentation, control and executive equipment while meeting the requirements for commercial accounting and regulation of the coolant.

1 eee fr (with $ h

4

Claims (1)

An automated system for measuring, metering and regulating the flow of heat carrier for heat supply to a group of consumers, containing a heat source, supply and return pipelines of a closed heat network with connected by-pass supply and return pipelines of heat supply for each consumer, a metering unit, metering and regulating the flow of heat carrier with a flow sensor , temperatures and pressures installed on the direct and return pipelines, flow, pressure and differential pressure regulators are circulating the first pump, a heat and energy processor associated with sensors and regulators, characterized in that the measuring unit, metering and regulation of the coolant is installed at the first heat supply facility after connecting to the supply and return pipelines, and additional coolant flow controllers are installed on the outlet supply pipelines of the following heat consumption objects, on the outlet temperature sensors are installed in the return pipelines, and in the sections of the supply pipeline behind each outlet pipe, with the exception of the last him, installed flow sensors.