| Start of section
Production, amateur Radio amateurs Aircraft model, rocket-model Useful, entertaining |
Stealth Master
Electronics Physics Technologies Inventions |
Secrets of the cosmos
Secrets of the Earth Secrets of the Ocean Tricks Map of section |
  |
| Use of the site materials is allowed subject to the link (for websites - hyperlinks) | |||
Navigation: => |
Home / Patent catalog / Catalog section / Back / |
|
INVENTION
Patent of the Russian Federation RU2231004
ROTARY CAVITATION PUMP-THERMAL GENERATOR
The name of the inventor: Petrakov Alexander Dmitrievich (RU); Radchenko Sergey Mikhailovich (RU); Yakovlev Oleg Pavlovich
The name of the patent holder: Petrakov Alexander Dmitrievich (RU); Radchenko Sergey Mikhailovich (RU); Yakovlev Oleg Pavlovich (RU)
Address for correspondence: 656037, Barnaul, ul. Karagandinskaya, 6a, S.M. Radchenko
The effective date of the patent: 2002.10.23
The invention relates to the construction of pump-heat generators for use in local heating and hot water supply systems and for heating liquids in various process systems. The pump-heat generator contains a hollow body with branch pipes for supplying the heated liquid and for withdrawing the heated liquid, a rotor with a rotor ring having cylindrical holes, a stator ring with suddenly expanding holes and rod radiators. The input and output diameters of the holes in the stator ring, as well as the length of the widened part of these holes, are in certain dependencies. The invention is aimed at increasing the efficiency of conversion of mechanical energy into thermal energy due to more complete utilization of the kinetic energy of liquid jets and simplifying the design of the pump.
DESCRIPTION OF THE INVENTION
The invention relates to the construction of pump-heat generators, which can be used mainly in local heat supply systems for industrial buildings, workshops, public and residential premises, and for heating liquids in various technological systems.
The construction of the heat pump is known (RU Patent No. 2160417) , in which there is a hollow body with a suction nozzle for supplying the heated liquid and a discharge pipe for withdrawing the heated liquid. Inside the body are: a rotor in the form of a centrifugal wheel with holes on the periphery and a stator with holes. The stator is mounted coaxially to the rotor. The holes of the rotor are made in the form of conoidal nozzles tapering towards the stator. The stator holes are made in the form of suddenly expanding nozzles with the transition into conical divergent nozzles with the angle of expansion 
.
The disadvantages of the known device are:
- the absence of cavitation zones in the holes of the rotor,
- the shape of the stator orifices does not sufficiently use the energy of the transit liquid jet to expand cavitation zones, which are the main sources of heat release.
Known is the rotor pump-heat generator closest to the invention (Russian Federation patent RU No. 2159901) , in which there is a hollow body with a suction nozzle for supplying the heated liquid and a discharge port for draining liquid. Inside the body, a rotor and a stator are concentrically arranged. In the peripheral part of the rotor, in the annular nozzle, the holes are made in the form of external cylindrical venturi nozzles, and the holes in the stator are made expanding toward the body and have the form of suddenly expanding nozzles.
The disadvantages of the known device are:
- insufficient use of the energy of the transit liquid stream in the stator orifices to form hydrodynamic cavitation,
- the ratio of hole diameters in the stator rings (initial diameter and diameter of the expanded section) has not been worked out in order to maximize the development of cavitation in the swirl zones;
- the optimal length of the widened portion of the stator orifices is not determined with respect to the height of the ledge K = (D / 2 - d / 2), where D is the outlet diameter of the holes; D is the inlet diameter of the holes.
The object of the invention is to provide a device that allows to more fully use the kinetic energy of the transit part of the liquid jet in the stator holes for heating the liquid due to the optimal ratio of the diameters and length of the widened part of the holes, the placement of rod radiators and the cavitation effects of converting the kinetic energy into thermal energy.
The object is achieved in that in a rotary cavitation pump-heat generator comprising a hollow body with a suction nozzle for supplying a heated liquid and a discharge nozzle for withdrawing a heated liquid within which there are located: a rotor with a rotor ring having cylindrical holes and a stator with a stator ring, The openings in the stator ring are suddenly expanded with a ratio of the inlet and outlet diameters of the holes d / D = 0.6, and the length of the widened portion of the holes is in the relationship L = 5 (D / 2-d / 2). On the axis of the holes of the stator ring, rod radiators having sharp edges with an angle of sharpening up to 30 ° and extended parts can be installed.
FIG. 1 is a cross-sectional view of a rotary cavitation pump-heat generator consisting of the following main components: 1 - hollow body; 2 - rotor shaft; 3 - rotor ring; 4 - the stator ring; 5 - openings in the stator ring in the form of suddenly expanding nozzles; 6 - rod radiators.
2 shows the position of the rotor and stator rings 3, 4 when aligning the holes. In this position cavitation zones are formed in the rotor ring - zone A, in the stator ring - zone B, on the rod radiator 6 - zone C.
FIG. 3 shows the position of the rotor and stator rings 3, 4 when displaced, the holes do not coincide. At the moment of overlapping of holes in zone A, a hydraulic shock occurs that contributes to the disappearance (collapse) of cavitation bubbles, and in zones B and C cavitation bubbles collapse by the pressure of liquid P2 in the housing 1 of the heat-generator pump.
The pump-heat generator comprises a body 1 (FIG. 1) with nozzles for supply and removal of a heated liquid inside which the rod radiators 6 are located and a stator ring 4 (FIGS. 1, 2, 3). Inside the body 1 of the concentric ring 4 of the stator, there is a rotor with a rotor ring 3 fixed to the shaft 2.
In the peripheral part of the rotor, the holes are cylindrical, and the holes 5 in the stator ring 4 are suddenly expanded with a diameter ratio d / D = 0.6, where d is the inlet diameter of the holes; D is the output diameter of the holes.
The length of the widened part of the holes 5 is defined as L = 5 (D / 2 - d / 2).
On the axis of the holes 5 of the stator ring 4 there are rod radiators 6 designed to form the swirl zones C and ultrasonic cavitation arising on the sharp edges of the radiators 6 - the "wedge tone".
The described rotary cavitation pump-heat generator operates as follows.
The heated liquid passes through the suction nozzle of the hollow body 1 into the rotor with the rotor ring 3. The rotor, rotated by the shaft 2, acts on the vanes with the vanes, communicating kinetic energy to it and directing it into the holes of the rotor ring 3. The liquid, passing through the holes of the rotor ring 3, forms the vortex zones A with reduced pressure and the formation of cavitation bubbles therein. The transit liquid stream within the zone A and is saturated with cavitation bubbles.
At the moment of aligning the holes of the rotor ring 3 and the holes 5 of the stator ring 4 (FIG. 2), the fluid passing through the rotor holes forming the vortex zones A and possessing great kinetic energy, entering the suddenly expanding holes 5 of the stator ring 4, forms the vortex zones B. Transit parts of the jets, skirting the rod radiators 6, form the vortex zones C, which are the centers of formation of cavitation bubbles (zones A, B, C). The ratio of the dimeters of the holes 5 of the stator ring d / D = 0.6 (FIG. 3) and the lengths of the holes 5 of the enlarged part L = 5 (D / 2-d / 2) are the most profitable from the point of view of formation of cavitation bubbles (Fig. 2 ).
In addition, in the case of inflow of transit liquid jets passing through the suddenly widening openings 5 of the stator ring 4, a "wedge-shaped tone" appears on the wedge-shaped edges of the rod radiators 6, this is an ultrasound produced when the edge is sharpened at about 30 °. The transit part of the liquid streams, falling on the sharp edges of the radiators 6, is broken by these edges so that vortices appear from both sides.
At the moment of overlapping the holes of the rotor ring 3, the side walls (partitions) of the stator ring 4 (FIG. 3) sharply increase the pressure in the holes of the rotor ring 3 (hydraulic shocks), which help to collapse the cavitation bubbles in the zones A, and the static pressure P2 maintained in the body Heat generator, slamming of cavitation bubbles in zones B and C and in vortices diverging from sharp edges of rod radiators is provided.
The energy released by the collapse of the cavitation bubbles is transferred to the heated liquid.
Varying the flow rate of the flowing liquid, the pressure ratio P1 and P2 is changed, which, when oscillations are applied from the hydraulic impacts in the rotor and the rod radiators, 6 at a known rotational speed of the rotor, contribute to the appearance of an autooscillatory regime in the hydraulic system.
Since the establishment of the self-oscillation mode, the rate of liquid heating increases, and the energy consumption on the drive of the heat generator decreases.
This pump-heat generator can be used for heating and hot water supply of residential buildings and industrial premises, as well as for heating liquids in technological processes.
CLAIM
A rotary cavitation pump-heat generator having a hollow body with a suction nozzle for supplying the heated liquid and a discharge pipe for withdrawing the heated liquid within which there is a rotor with a rotor ring having cylindrical holes and a stator with a stator ring having suddenly expanding holes and rod radiators , Characterized in that the openings in the stator ring are made suddenly expanding with the ratio of the inlet and outlet diameters of the holes d / D = 0.6, and the length of the widened part of the holes is in the L = 5 ratio (D / 2 - d / 2).
Rotary cavitation pump-heat generator according to claim 1, characterized in that along the axis of the holes of the stator ring there are rod radiators having sharp edges with an angle of sharpening up to 30 ° and enlarged parts.
print version
Date of publication 06.12.2006гг
Comments
When commenting on, remember that the content and tone of your message can hurt the feelings of real people, show respect and tolerance to your interlocutors even if you do not share their opinion, your behavior in the conditions of freedom of expression and anonymity provided by the Internet, changes Not only virtual, but also the real world. All comments are hidden from the index, spam is controlled.