RU2347154C1 - Small-sized rotor-type heat generator - Google Patents

Abstract

FIELD: heating.

SUBSTANCE: small-sized rotor-type heat generator is designed for heat and hot water supply to the industrial and household facilities. A rotor-type heat generator comprises a cylindrical casing in which a hollow rotor is rigidly fixed on a hollow shaft with the possibility of rotation. At least one additional cylindrical surface of smaller diameter is mounted inside the rotor coaxially to its cylindrical surface as well as at least two radially set baffles are mounted evenly and circumferentially and adjoin the cylindrical and end-face surfaces of the inner rotor surface. Diametral rows of through holes are made on the rotor cylindrical surface and additional cylindrical surface. A diametral row of analogous through holes is made at the end-face rotor surfaces in close proximity to the hollow shaft; radial rows of blind slots are made at a greater distance from the shaft, analogous blind slots are made on the inner casing end-face surfaces. Such design provides for increasing efficiency and reliability of the device, reducing its production costs.

EFFECT: increasing efficiency and reliability of the device, reducing its production costs.

2 cl, 2 dwg

Description

The invention relates to heat engineering, and in particular to devices containing rotating elements for heating fluids, and can be used for heat and hot water supply for industrial and domestic purposes.

A device for heating a fluid is known (see US patent No. 5188090, F24C 9/00 of 02.23.93), adopted as a prototype. The device consists of a cylindrical rotor, in which the cylindrical surface has a certain number of holes. The rotor rotates inside the housing, whose inner surface is adjacent to the cylindrical and end surface of the rotor. The housing has one or more inlet and outlet channels arranged arbitrarily.

The disadvantages of the prototype are low heat production, high overall dimensions, low corrosion and cavitation resistance.

The proposed invention solves the problem: reducing energy consumption during heating, reducing material consumption and increasing the durability of the device.

The technical result obtained by carrying out the invention is to increase the efficiency of the device, reduce costs in its manufacture and to increase the corrosion and cavitation resistance of the main components of the device.

The specified technical result is achieved by the fact that in the proposed small-sized rotor-type heat generator containing a stationary body having inlet channels, an exhaust channel, a cylindrical rotor is mounted on the shaft with the possibility of rotation on the shaft, it is new that the shaft and cylindrical rotor are made hollow, and the inner cavity of the cylindrical rotor coaxially with its cylindrical surface, at least one cylindrical surface of smaller diameter is placed, evenly spaced around the circumference, like m at least two radially located partitions adjacent to the cylindrical and end surfaces of the inner cavity of the rotor, diametrical rows of through holes are made on the cylindrical surface of the rotor and on the cylindrical coaxial surface of a smaller diameter, rows of similar through holes are made parallel to the end walls of the rotor on the radial walls, on the end surfaces In the immediate vicinity of the shaft, the rotor has a diametrical row of through holes, and at a greater distance from the shaft, enes radial rows of non-through grooves, similar non-through grooves formed on the inner end surfaces of the housing.

The inner surface of the housing and the surface of the cylindrical rotor are coated with a highly resistant and thermo-noise-insulated coating.

The execution of the shaft and the cylindrical rotor hollow is due to the need to reduce mechanical losses during the operation of the small heat generator, i.e. in the process of generating thermal energy. With a decrease in the mass of rotating parts, not only the efficiency but also the durability of the heat generator increases, and the economic indicators in its production improve.

The placement in the inner cavity of the cylindrical rotor of at least one coaxial cylindrical surface of a smaller diameter, as well as the placement uniformly around the circumference of at least two radially located partitions adjacent to the cylindrical and end surfaces of the inner cavity of the rotor, is due to the following factors:

- the need to ensure the largest area of contact of the moving fluid with the rotating surfaces of the rotor, which allows to increase the power consumption of the heat generator, and therefore, the amount of thermal energy produced without increasing the diameter of the rotor;

- the fluid flow undergoes, when moving from the inlet channels to the outlet channel, multiple discontinuities of the continuous medium, multiple changes in the direction of movement, which contributes to an intensive heating process, including due to the collapse of numerous cavitation microcavities;

- increases the rigidity of the hollow design of the rotor.

Execution of rows of through holes on a cylindrical surface of the rotor, on a cylindrical coaxial surface of a smaller diameter and on the radial partitions allows a large number of tapering fluid flows under the action of pressure applied at the inlet of the inlet channels and centrifugal forces, which allows multiple redistribution, acceleration and deceleration of the flow, accompanied by its heating.

To ensure the flow of fluid into the hollow rotor on its end surfaces, a diametrical row of through holes is made in the immediate vicinity of the shaft. Moreover, the fluid enters the hollow rotor in the low pressure zone created by the action of centrifugal forces, which allows to maintain a high level of fluid flow.

The execution on the end surfaces with a large distance from the shaft of the radial rows of non-through grooves and similar non-through grooves on the inner end surfaces of the housing allows to obtain areas with high heat production. The fluid moves inside the groove, is braked against the walls and subsequently carried away into the general flow with the release of thermal energy.

Processing the inner surface of the housing and the surface of the cylindrical rotor with a highly resistant and thermo-noise-insulated coating allows you to solve the following problems:

- prevention of the effects of corrosion and cavitation;

- counteraction to the formation of scale on the working surfaces of the housing and rotor;

- creating a sound-absorbing effect due to damping of noise at the time of its occurrence;

- allows you to use a heat generator for heating food liquids, as well as chemically active liquids.

Technical solutions with features distinguishing the claimed solution from the prototype are not known and do not follow explicitly from the prior art. This suggests that the claimed solution is new and has an inventive step.

The invention is illustrated by drawings, where

figure 1 shows a General diagram of a small heat generator rotary type;

figure 2 - layout of a cylindrical coaxial surface of smaller diameter and radial partitions.

The small-sized rotor-type heat generator consists of a cylindrical body 1, inside of which a hollow cylindrical rotor 3 is rigidly mounted on the hollow shaft 2 with a possibility of rotation. At least one additional cylindrical surface 4 of smaller diameter is installed inside the rotor 3 coaxially with its cylindrical surface, as well as uniformly circles are placed at least two radially located partitions 5 adjacent to the cylindrical and end surfaces of the inner surface of the rotor 3. On the cylindrical diametrical rows of through holes 6 are made of the surface of the rotor 3 and the additional cylindrical surface 4. In the immediate vicinity of the hollow shaft 2, a diametrical row of similar through holes 6 is made on the end surfaces of the rotor 3, and at a greater distance from the shaft 2 there are made radial rows of through holes 7, similar non-through grooves 7 are made on the inner end surfaces of the housing 1. Support washers 8 are adjacent to the end surfaces of the housing 1, in which bearing bearings 9 are located, in which al 2, seals 10 installed in the chambers 11 associated with the internal cavity of the housing 1. The holes associated with the chambers 11 act as inlet channels 12. The exhaust channel 13 is located on the cylindrical surface of the housing 1. The shaft 2 is connected via a coupling 14 to an electric motor or other drive 15.

Small-sized heat generator rotary type operates as follows. After filling the internal cavity of the housing 1 with fluid, the electric motor or other drive 15 is turned on. The rotation through the clutch 14 is transmitted to the shaft 2 with the rotor 3 rigidly mounted on it. Fluid is supplied under pressure through the inlet channels 12 of the chamber 11 into the cylindrical housing 1 and brakes with the release of thermal energy on the end walls of the rotor 3. Next, part of the fluid enters the gap between the end surfaces of the rotor 3 and the housing 1 and moves with the release of thermal energy in the zones of the through holes 6 and through x grooves 7 to the exhaust channel 13, where there is a collision of oncoming flows, accompanied by heating of the fluid. Another part of the fluid through a series of through holes 6 enters the hollow rotor 3 and moves to the through holes 6 first of the additional cylindrical surface 4 and then to the cylindrical surface of the rotor 3. The fluid when moving inside the hollow rotor 3 repeatedly overcomes the holes 6 in the radial plates, which also accompanied by its heating. Ultimately, the fluid flow through the through holes 6 on the cylindrical surface of the rotor 3 is mixed with two streams moving outside the rotor 3, and enters the outlet channel 13.

Claims (2)

1. A small rotor-type heat generator containing a stationary housing having inlet channels, an exhaust channel, a cylindrical rotor mounted on the shaft rotatably mounted on the shaft, characterized in that the shaft and cylindrical rotor are hollow, and in the inner cavity of the cylindrical rotor coaxially with its cylindrical surface at least one cylindrical surface of smaller diameter is placed, at least two radially located partitions adjacent to the cylinder are evenly distributed around the circumference diametrical rows of through holes were made on the cylindrical and end surfaces of the inner cavity of the rotor, on the cylindrical surface of the rotor and on the cylindrical coaxial surface of a smaller diameter, rows of similar through holes were made parallel to the end walls of the rotor on the radial walls, on the end surfaces of the rotor in the immediate vicinity of the shaft a diametrical row was made through holes, and at a greater distance from the shaft, radial rows of through holes are made, similar to through holes ying on the inner end surfaces of the housing. 2. The small-sized rotor-type heat generator according to claim 1, characterized in that the inner surface of the housing and the surface of the cylindrical rotor are coated with a highly stable and thermally noise-insulated coating.

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