SYSTEM FOR MEASURING AND ACCOUNTING HEAT CONSUMED PER EACH FLAT IN HEAT SUPPLY SYSTEMS FOR DOUBLE-PIPE SYSTEM Russian patent published in 2010 - IPC F24D19/00 

FIELD: heating systems.

SUBSTANCE: system for measuring and accounting heat consumed per each flat in heat supply systems for double-pipe system includes heat source, supply pipeline connected to heating devices, return pipeline and temperature measurement sensors installed on supply and return pipelines. Temperature measurement sensors of heat carrier are installed on supply pipeline at the entry of each flat, and on return pipeline - at the exit from each flat; at that, on return pipeline of each flat a flow metre is installed before sensor; at that, each sensor is made in the form of a capsule comprising a shell with staged bottom; at that, bottom stage is made in the form of external blind thin-wall connection pipe on internal side surface of which there is a thread on which there rigidly fixed is insert made in the form of pin equipped with outer thread. Pin is provided with longitudinal through rectangular groove; at that, in internal cavity of capsule there installed is measuring and transmitting module consisting of temperature measuring printed board equipped with a shank with temperature sensing element fixed on its end, and shank is located in rectangular groove of insert and printed board of wireless communication, which includes initialisation element, and upper and lower edges of printed boards are fixed by means of sealant in upper and lower bases of housing respectively, in the area of upper base of which there installed is power element and antenna for transmitting information to heat energy counting device and/or temperature indicator, and external surface of upper capsule part is staged; at that, stages are divided with annular projection provided with diametrical flattened surfaces; at that, stages are provided with thread; by means of lower stage, capsule is fixed either on pipeline tee, or directly on pipeline, and on upper stage there installed is a cap equipped with ventilation holes.

EFFECT: development of simple heat supply system, improvement of measurement accuracy by using for this measurement the temperature difference of heat carrier at the entry to a flat and at the exit from it, and reduction of operating costs, and development of reliable and serviceable technical solution.

2 cl, 6 dwg