DE3517999A1 - Zone temperature control system for heating installations - Google Patents

Abstract

Published without abstract.

Description

Zone temperature control system fbr metering

The previously known zone temperature control systems enable one time-dependent room temperature regulation either only 1. by adjusting the known Radiator thermostatic valves by hand or 2. by installing electrically operated ones Actuators or 3. by creating zone-based separate heating circuits.

Systems are known for this that use a room thermostat and timer work on so-called solenoid valves and moto valves, and room air temperature-dependent Expansion thermostats for individual radiator valves.

Disadvantage of these systems list: 1. Time-dependent room temperature setting is only possible by hand, with the required due to the inertia of the heating surfaces higher room temperature is only reached after a long stay in cool rooms.

Uneconomical, as it is often necessary to adjust when the rooms are not in use the valves are forgotten to lower room temperature and thereby the radiators consume heat energy unnecessarily.

To 2. The electrically operated actuators on the most diverse Radiators within a zone are all controlled jointly by a central measuring room and therefore individual room control is not possible.

To 3. The division of a heating system into individual heating circuits according to zones is very expensive because of the separate pipe routing to the individual zones and expensive.

In addition, this is only possible when creating new systems.

Due to the inventive design of the zone temperature control system these disadvantages are avoided.

The subsequent installation of the system is a particular advantage pre-existing systems, which converts these centrally controlled systems into individual Heating zones, such as apartments, individual rooms, halls, etc. are divided and so each Zone can be controlled according to the usage time.

An individual room control within a zone remains as usual obtained by the known radiator thermostatic valves.

On the basis of the graphic representations "Central unit circuit diagram" and sectional drawing "valve control head", this invention is explained in more detail: I. Valve control head: In the well-known valve thermostat head with expansion body, (drawn Thermostatic head K Fab. Heimeier) becomes the coil carrier Q with heating coil 2 and retaining ring 0 built in.

Electrical connection lines ~ 0 for the heating coil in the form of plug contacts, are brought out on the fixed valve coupling part of the thermostat head.

The setting for the desired room temperature of the thermostatic head by turning it by hand remains, as originally known, so that the thermostatic head fulfills its previously known function and task during the use of the room and the Set the desired room temperature even when external heat is generated by e.g. B. Sun exposure, human Heat emission etc. occur.

At the time the room is used, it is a single room temperature control, as known and proven a million times over.

When the rooms of a heating zone are not in use, such as B.

Apartments, halls, individual rooms, etc., the heating coil O is electrical Low voltage less than 12 volts "supplied.

The heating coil 0 develops inside the valve thermostat head within a short time Warmth. This heat is transferred to the expansion body known in the valve thermostat head W transmitted. The expansion body feels this warmth as the one set on it achievable room air temperature and moves the known reciprocating piston 6 in known Valve position closed.

The radiators cannot give off heat. So it will the valve thermostat head simulates the attainable room temperature set on it.

II. Central unit - zone temperature control system for time-dependent Temperature control of the individual valve control heads is a central device below described function is used.

The central device is installed in an easily accessible location in an apartment, of a hall etc. mounted on the wall.

The power supply comes from the house network 220 volts.

A transformer regulates the output voltage to a maximum of 12 V on the central unit, which are routed via electrical cables to the individual valve control heads in a heating zone will.

A timer W built into the central device enables the time-dependent Control of the heating zone depending on the use of the apartment, halls, etc.

When using the rooms: output extra-low voltage on the central device "OFF" = 0.

If the rooms are not in use: Extra-low voltage output on the central device "ON" max. 12 V.

To prevent the heating zone from freezing when the heating zone is not in use a frost protection thermostat 0 is attached to the central unit.

This frost protection thermostat monitors the central room temperature of a Heating zone.

If there is a risk of frost, it switches the output extra-low voltage on the central device "OFF" = 0; so that the valve control heads control their known original function can.

To prevent overheating in the valve control heads, an overheating protection is built into the central device.

The overheating protection U consists of one as described under I. Valve control head and an electrical pressure switch TÜS Here the lifting piston is at work in the valve control head, however, not on a radiator valve, but rather it actuates the US pressure switch With sufficient stroke movement of the piston in the valve control head the pressure switch TÜS is triggered and the output extra-low voltage on the central device if "OFF" = 0.

Further heating of the heating coils 2 in the valve control head is avoided.

The instantaneous Switch position can be read.

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Claims (1)

Patent claim: Zone temperature control system for heating systems as a result marked: that centrally controlled heating systems in individual, from the use Time-dependent heating zones can be divided and the installation in existing heating systems can be made. The single room temperature control system that has been known to date and has proven itself a million times over is retained in the form of the well-known radiator thermostatic valves. Just an exchange of the known radiator thermostatic valves installed so far with the new valve control heads without replacing radiator control valves on radiators is required. The entire system with an electrical extra-low voltage of less works than 12 volts and therefore laying cables in all areas is safe is possible. Protection against freezing individual radiators and overheating of the valve control heads is available.