RU2135903C1 - Plant for heating liquids and heat generator - Google Patents

Abstract

FIELD: heating liquids and mixing liquids in various processes. SUBSTANCE: plant for heating liquids includes heat generators, tank, electric pump and pipe lines connecting them. Inlet branch pipes of heat generators are connected with header mounted on tank and with delivery branch pipe of electric pump through pipe line; outlet branch pipes of heat generators are connected with tank. Heat generators include twisting chamber connected by housing with screen made in form of chamber; solid partition having slots over periphery is mounted between inlet and outlet branch pipes perpendicularly to flow of liquid. Housing is made in form of torus whose half-turns are located over helical line. Ratio of length of torus over axial line to its inner diameter is equal to or more than 8. Diameter of solid portion of partition is more than inner diameter of branch pipe; ends of branch pipes are mounted at distance equal to 25 to 35 percent of their inner diameter. EFFECT: increased heat release; enhanced efficiency of mixing liquids; reduced usage of metals; low cost of liquid heating plant. 4 cl, 4 dwg

Description

 The invention mainly relates to heat engineering and can be used in various heating systems, as well as for heating liquids for industrial and domestic needs.

 The invention can also be used for mixing and obtaining emulsions of liquids in various technological processes.

 Known devices that use changes in the parameters of the liquid (pressure, flow rate) to obtain thermal energy or mix liquids, see, for example, an injection jet mixer according to the application 95117191/20 10/17/95 (patent 3563 U1), a heat generator and a device for heating liquids according to the application 93021742/06 04/26/93, (patent RU 2045715 C1).

 The mixer according to the application 95117191/20 contains a mixing chamber, a homogenization chamber with an outlet nozzle and a continuous partition with vanes at the periphery, mounted perpendicular to the fluid flow in the outlet nozzle of the homogenization chamber.

 The mixing chamber is made in the cross section in the form of a spiral and is equipped with two holes for supplying liquids: in the side wall for supplying to the spiral part and in the end wall for supplying along the axis of the chamber.

 The specified mixer does not provide sufficient subtlety for mixing liquids, since a continuous baffle with blades on the periphery has a small length in the direction of fluid flow, and the supply of one liquid to the mixing chamber is made through an opening in the end wall along the axis of the mixing chamber without swirling.

 The heat generator and the device for heating liquids according to the application 93021742/06 contains a cyclone (swirl chamber) and a cylindrical body connected to it with a brake device in the form of several ribs located radially on the central sleeve.

 A device for heating liquids contains a heat generator, the inlet pipe of which is connected to the discharge pipe of the electric pump, and a piping system.

 The disadvantages of this heat generator and a device for heating fluids are significant dimensions, and, consequently, the metal consumption and cost of the device, caused by the large length of the cylindrical body of the heat generator, and insufficient use of energy of a moving fluid, due to the adopted design of the brake device.

 As the closest to the invention in terms of the essential features of the technical solution - the prototype adopted heat generator and a device for heating liquids according to the application 93021742/06.

 The aim of the invention is to reduce the metal consumption and installation cost, increasing the efficiency of heating the liquid and mixing the liquids.

 The problem is solved using a combination of the following essential features.

 A fluid heating installation comprises two or more heat generators, a tank, an electric pump, and pipelines connecting them.

 The electric pump draws liquid from the tank and feeds it back into the tank through heat generators. The fluid in the tank heats up. The heated liquid is then piped into the heating system.

 The heat generator comprises a swirl chamber and a grate in the form of a separate chamber with an inlet and outlet nozzle and a continuous partition with grooves at the periphery installed in the chamber between the nozzles perpendicular to the fluid flow, interconnected by a housing.

 The fluid is fed into the swirl chamber, accelerates and receives rotational motion, is fed through the body to the grate, where the fluid flow is decelerated and heat is generated due to a change in the kinetic energy of the flow, with intensive mixing of the fluid.

Distinctive features of the invention are:
- connection in the installation for heating liquid inlet pipes of heat generators with a collector installed on the tank, connected through a pipeline to the discharge pipe of the electric pump, and outlet pipes of heat generators with a tank;
- the implementation of the housing of the heat generator in the form of a torus, half-turns of which are located along a helical line;
- the ratio of the length of the torus along the axial line to the inner diameter of the torus is equal to or greater than 8;
- the diameter of the solid part of the partition of the grid of the heat generator is made at least 10% larger than the inner diameter of the nozzles, and the ends of the nozzles are installed from the partition at a distance equal to 25 to 35% of the inner diameter of the nozzle.

 The installation for heating the liquid with the indicated distinctive features allows to reduce the metal consumption and installation cost by reducing the size of the connecting pipelines.

The implementation of the heat generator with these distinctive features allows you to:
- to increase heat dissipation and the efficiency of mixing liquids by providing an additional twist of the fluid flow along the axis of the housing (torus) in the applied design of the heat generator body;
- to increase heat dissipation and mixing efficiency of liquids due to sudden changes in the direction of fluid flow in the applied lattice design;
- reduce the long dimensions of the heat generator due to the housing in the form of a torus with half-turns located along the helix, and, therefore, reduce the metal consumption and the cost of the entire installation for heating liquids.

 In FIG. 1 is a diagram of an apparatus for heating a liquid; FIG. 2 is a general view of the heat generator; FIG. 3, 4 - structural design of the lattice.

 Installation for heating a liquid, see FIG. 1, contains heat generators 4, a tank 3, in which heat generators are mounted, with a collector 5, an electric pump 1, a pressure pump 6 and a suction pipe 2. Two heat generators are mounted in the tank. Heat generators can also be mounted outside the tank.

 The inlet pipes of the heat generators are connected to the collector 5 mounted on the tank 3. The collector is connected through a pipe 6 to the discharge pipe of the electric pump 1. The output pipes of the heat generator are connected to the tank.

 Heat generator, see FIG. 2, comprises a swirl chamber 8 with an inlet pipe 7 and a grill 10 interconnected by a housing 9.

 The housing 9 is made in the form of a torus, half-turns of which are located along a helical line, the ratio of the length of the torus along the axial line to the inner diameter of the torus is equal to or greater than 8.

 Lattice 10, see FIG. 2, 3, 4 is made in the form of a separate chamber 12 with inlet 11 and outlet 14 nozzles and a continuous partition 13 with grooves 15 at the periphery installed in the chamber between the nozzles perpendicular to the fluid flow. The diameter 16 of the solid part of the partition 13 is made at least 10% larger than the inner diameter of the nozzles 11, 14, and the ends of the nozzles are installed from the partition at a distance equal to 25 - 35% of the inner diameter of the nozzle.

 During the operation of the installation for heating the liquid, the liquid from the tank 3 through the pipe 2 is taken by the electric pump 1, fed through the pipe 6 to the collector 5 and through the inlet pipes 7 to the heat generators 4, then, after passing through the heat generators, the liquid again enters the tank through the outlet pipes of the heat generators. Heated fluid is supplied to the heating system.

 The connection of the inlet pipes of the heat generators with a collector installed on the tank, connected through a pipeline to the discharge pipe of the electric pump, and the output pipes of the heat generators - with the tank, reduces the dimensions of the connecting pipelines, and, therefore, reduces the metal consumption and the cost of the entire installation for heating the liquid.

 During the operation of the heat generator, the liquid is supplied by the electric pump through the nozzle 7 to the swirl chamber 8, receives twist in a plane perpendicular to the longitudinal axis of the heat generator, enters the housing 9, the shape of which provides additional fluid swirl along the axis of the housing, and enters the grill 10. Intensive braking occurs in the grill fluid flow and mixing due to multiple changes in the direction of fluid movement due to the fact that the diameter 16 of the solid part of the partition 13 with grooves 15 on the periphery installed in the chamber 12 between the nozzles 11, 14 perpendicular to the fluid flow, is made at least 10% larger than the inner diameter of the nozzles 11, 14, and the ends of the nozzles are installed from the partition at a distance equal to 25 - 35% of the inner diameter of the nozzle. After the grate, the liquid enters the tank through the outlet pipe.

 Additional swirling of the fluid flow in the heat generator body and intensive braking in the grate, provided by the design of the body and grate, increase the heat generation and mixing efficiency of liquids during operation of the heat generator.

 In accordance with the essence of the invention, prototypes of a heat generator and installation for heating a liquid were manufactured and tested. Positive test results obtained.

Claims (4)

 1. Installation for heating a fluid containing two or more heat generators, a tank, an electric pump and pipelines connecting them, characterized in that the inlet pipes of the heat generators are connected to a collector mounted on the tank, connected through a pipe to the discharge pipe of the electric pump, and the output pipes of the heat generators are connected to the tank .  2. A heat generator comprising a swirl chamber and a grill in the form of a separate chamber with inlet and outlet nozzles and a solid partition with grooves at the periphery installed in the chamber between the nozzles perpendicular to the fluid flow, interconnected by a housing, characterized in that the housing is made in the form of a torus, half-turns of which are located on a helix.  3. The heat generator according to claim 2, characterized in that the ratio of the torus length along the axial line to the inner diameter of the torus is equal to or greater than 8.  4. The heat generator according to claim 2 or 3, characterized in that the diameter of the solid part of the partition of the lattice is made at least 10% larger than the inner diameter of the nozzles, and the ends of the nozzles are installed from the partition at a distance of 25 - 35% of the inner diameter of the nozzles.

Images