RU2123155C1 - Heating system with natural circulation of heat-transfer agent and hot water supply - Google Patents

Abstract

FIELD: self-contained heating and hot water supply systems for buildings. SUBSTANCE: system includes preliminary purification of tap water fed to system. Besides that, is provided with automatic make-up of expansion reservoir with preheated water at insignificant consumption of hot water (morning toiler, dish washing, etc.) which is effected through connection of float valve of expansion reservoir to outlet branch pipe of tap water preheating coil. Provision is made for simultaneous make-up of entire system with preheated water in case of considerable consumption of hot water (bath, shower, etc. ), thus making it possible to use the entire system as hot water accumulator and eliminating shortage in replenishing the system with cold water. EFFECT: enhanced efficiency. 1 dwg

Description

 The invention relates to a power system, in particular, to open heating systems for buildings for various purposes, and can be used for autonomous water heating and hot water supply of both existing and newly constructed buildings of residential, public and industrial sectors.

 A known heating system with natural coolant circulation and hot water supply, comprising a hot water boiler with a coil for heating excess cold water, an expansion vessel with a float valve to automatically maintain the water level in it and a control overflow pipe, a main riser connecting the upper point of the boiler’s water jacket to the bottom of the expansion pipe vessels, heating devices connected by a supply pipe, with the lower part of the side walls of the expansion vessel, and the return pipe a wire - with the bottom point of the boiler’s water jacket with a tap between the boiler and the last heating device, mixers with cold and hot water taps connected to the corresponding pipelines, the last of which is connected to the supply pipe of the KS-TVm-16 heating system, Konord plant, O.A.O.P.O. Rostselmash, Rostov-on-Don, 1993, p. 9-12).

 The disadvantage of the prototype is the inability to use hot water from the heating system, which is an additional battery of hot water in the winter. The heating supply pipelines are powered from the main riser, which also excludes the possibility of using the expansion vessel as a hot water accumulator in summer and winter time, and also reduces the pressure in the heating system supply pipelines.

 The technical result from the use of this invention is the ability to feed the boiler, and therefore the expansion vessel, pre-heated with tap water at the time of consumption of hot water by the consumer, the possibility of pre-treatment of tap water, the ability to automatically feed the expansion vessel and boiler with pre-heated water.

 The technical result is achieved by the fact that the heating system with natural circulation of the coolant and hot water supply contains a hot water boiler with a heating coil for running cold water, an expansion vessel with a float valve to automatically maintain the water level in it and a control overflow pipe, the main riser connecting the upper point of the water jacket to the pipe boiler with the bottom of the expansion vessel, heating devices connected by a supply pipe to the bottom of the side walls of the expander vessel, and the return pipe - with the bottom point of the boiler’s water jacket with a tap between the boiler and the last heating device, mixers with cold and hot water taps connected to the corresponding pipelines, the last of which is connected to the heating system supply pipe, the float valve of the expansion vessel is connected by a pipeline, through a faucet with a branch pipe of a coil for heating flowing cold water exiting from the boiler, and additional water is installed next to the hot water faucet of each mixer of water consumption points An additional third tap with a marking similar to a hot water tap, the inlet of which is connected to the pipeline section between the float valve tap and the outlet pipe of the heating cold water heating coil, and the outlet of this tap is connected to the return pipe of the heating system in the section between the boiler and the return pipe tap at the same time, two shut-off valves are installed on the cold tap water pipeline before the first outlet for its consumption, between which a filter with a quick-change filter is installed general element.

 The drawing shows an open heating system with natural circulation of the coolant and hot water supply according to the present invention.

 The proposed system comprises a boiler 1 with a cold water heating coil mounted in it, a control overflow pipe 2, connected to the same name by the pipe 12 of the expansion vessel 11, heating devices 3, connected by a supply pipe 17 with the lower part of one of the side walls of the expansion vessel 11, and return pipe 24 with the lowest point of the boiler water jacket 1, a shut-off valve 4, marked similarly to a mixer hot water tap 5 and installed next to it at each place clean water, a cold water tap 6 of each mixer connected to a cold water pipe 21, a crane 7 connecting a cold water pipe 21 to a boiler heating coil 1, a water pre-treatment unit, consisting of two taps 8 and a filter 9 mounted between them quick-change filter element, open pipe 13, welded into the quick-release cap of the expansion vessel 11, the float valve 14 with the crane 15 installed in front of it, pipe 16 connecting the crane 15 with the boiler coil 1, pipe 18, a connected supply pipe of the heating system 17 with a hot water distribution pipe 20, a pipe section 22 connecting a hot water valve 4 to a pipe section 24 between the boiler 1 and the return pipe cock 23 installed between the last heating device 3 and the boiler 1.

 The proposed open heating system works with natural circulation of the coolant and hot water supply as follows. Cold tap water passing through open taps 8 and a pre-filter 9 mounted between them with a quick-detachable filter element, for example, an oil filter of one of the cars, flows through a pipe 21 to the cold water taps of the mixers in the places of its consumption and to the coil 7 its heating of the boiler 1. Through a pipe 16 connected to the pipe outlet of the cold water heating coil from the boiler 1, the latter enters the distribution pipe of heated water 19 and through an open faucet 15 to the float valve 14. From the pipeline 19, hot water flows to the taps 4 installed next to the two taps of the mixers of the places of water consumption. To use it for domestic needs in a significant amount (bath, shower, etc.), it is necessary to simultaneously open or turn on hot water taps 4 and 5, regardless of which forward, in this position of these taps, hot water from the expansion vessel 11 the supply pipe 17 of the heating system, flows through the pipe 18 to the hot water tap 5 mixers and, if necessary, mixing it with a cold tap 6 mixers, is consumed. At the same time, tap water preheated in the coil of boiler 1, through the distribution pipe 19, flows to open taps 4 and then through pipes 22 and 24 to the boiler, heated even more in boiler 1, through the riser 10, into the expansion vessel 11. After completion the use of hot water must be closed, without fail, first tap 5 of the mixer. Close the tap 4 only after the expansion vessel 11 is filled, as indicated by the water that has run into the sink from the overflow line 2. If the places of hot water consumption are located far from each other, then it is necessary to make outlets to each place of consumption from the overflow line 2. With a small consumption of hot water (morning toilet, washing dishes, etc.), it is advisable to open only the tap 5 of the mixer, because this flow is automatically compensated by the float valve 14 of the expansion vessel 14. When the heating system is turned off, in the summer, for which the valve 23 is closed, the hot water supply works the same as in winter. To replace the filter element, it is necessary to shut off the taps 8, unscrew the filter cap 9, replace the filter element, and perform all these steps in the reverse order.

 The present invention is simple in execution, however, it solves all the problems of further significant improvement in human living conditions.

Claims (1)

 A heating system with natural coolant circulation and hot water supply, comprising a hot water boiler with a heating coil for running cold water, an expansion vessel with a float valve to automatically maintain the water level in it and a control overflow pipe, a main riser connecting the upper point of the boiler water jacket to the bottom of the expansion vessel with a pipe , heating appliances connected by a supply pipe to the bottom of the side walls of the expansion vessel, and a return pipe - with the lower point of the boiler’s water jacket with a tap between the boiler and the last heating device, mixers with cold and hot water taps connected to the corresponding pipelines, the last of which is connected to the supply pipe of the heating system, characterized in that the float valve of the expansion vessel is connected by a pipe through a tap with an additional pipe of a coil for heating running cold water coming out of the boiler, and an additional third is installed next to the hot water tap of each mixer of water consumption points wounds with a marking similar to a hot water tap, the inlet of which is connected to the pipeline section between the float valve tap and the branch pipe of the heating cold water heating coil exiting the boiler, and the outlet of this tap is connected to the return pipe of the heating system in the section between the boiler and the return pipe tap, when At the same time, two shut-off valves are installed on the pipeline of cold tap water, before the first drain for its consumption, between which a filter with a quick-change filter element is installed.