RU2151344C1 - Water heating system - Google Patents

Abstract

FIELD: heat supply of buildings and constructions. SUBSTANCE: water heating system has supply and return risers with heating appliances and heat exchanger coupled to heating system. Delivery-to-heating-circuit pressure converter is mounted upstream of heat exchanger along delivery water flow. EFFECT: increased water pressure head. 1 dwg

Description

 The invention relates to heat supply systems and can be used for heating buildings and structures.

 A known system of water heating, containing the supply and return risers with heating devices and heat exchangers connected to the heating network / avt.sv. USSR 625101, F 24 D 3/00, 1978 /.

 A disadvantage of the known heating system is the limited service area / the small possible length of the heating network / due to the low available pressure due to the difference in water temperatures in the supply and return risers.

 A known water heating system comprising a supply and return risers with heating devices, a heat exchanger connected to a heating network, in which a supply and return risers are connected in a countercurrent circuit, and the return risers are connected tangentially to the lower part of the heat exchanger. USSR 629407, F 24 D 3/00, 1978 /.

 The disadvantage of this system is also the limited service area of heat consumers, associated with the low pressure achieved in such a system, which is determined only by the temperature difference in the supply and return risers.

 The objective of the invention is to increase the pressure drop in the system.

 The technical result is the expansion of the service zone of heat consumers.

 For this, in a water heating system containing a supply and return risers with heating devices and a heat exchanger connected to the heating network, a pressure transducer is installed in front of the heat exchanger along the network water, which converts the pressure of the network water into the water pressure of the heating circuit.

 This design of the water heating system allows you to perform it more extended, to intensify the movement of water in the heating system and, thus, the operation of the heating devices.

 The invention is illustrated by a schematic diagram of a heating system. It includes a main riser 1 with an expansion vessel 2, a supply 3 and a return 4 risers with heating devices 5, a heat exchanger 6 connected to a return riser 4 and a pressure transducer 7 installed in front of the main riser 1, which converts the pressure of the mains water into the water pressure of the heating circuit.

 The pressure transducer 7, of the pipe-in-pipe type, contains an internal screw 8 made of magnetic material (for example, steel) and located on bearings 9 inside the pipe 10, through which the heating circuit water flows from the devices 5 through the return riser 4 through a heat exchanger 6, an external screw 11, made of magnetic material on a cylindrical contour 12 mounted in bearings 13 outside the pipe 10 in the space between the pipe 10 and the outer pipe 14, where hot mains water flows into the pressure transformer 7 through pipe 15.

 The following heat consumer is connected to the network water pipe 16.

 The inventive heating system operates as follows.

 Hot network water / its pressure is significantly higher than the differential pressure that arises in the subscriber’s heating circuit due to the temperature difference between the main and return risers / through pipe 5 enters the pressure / magnetohydraulic / converter 7, which serves to convert the pressure of the network water to the water pressure of the heating circuit , where it passes in the space between the pipes 10 and 14, forcing the magnetic screw 11 to rotate with a cylindrical contour 12 in the bearings 13. Due to the creation of a magnetic torque, it starts to rotate in internal screw 8 in bearings 9, creating an additional pressure of water in the heating circuit, consisting of the main riser 1, expansion vessel 2, feed 3 and return riser 4, heating devices 5.

 After the heating devices 5, the cooled water of the heating circuit enters the heat exchanger 6 and, heated by the supply water, enters the pressure transducer 7.

 Such a heating system will allow serving longer heating networks, since in comparison with the prototype it provides a higher water pressure of the heating circuit, due to the increase in the speed of movement of the heating circuit water, the heating devices will work more efficiently.

Claims (1)

 A water heating system comprising a supply and return risers with heating devices and a heat exchanger connected to a heating network, characterized in that a pressure transducer is installed in front of the heat exchanger along the network water, which converts the pressure of the network water into the water pressure of the heating circuit.