Method of creating of working medium flow and rotor-type power-transforming device for realization of the method

FIELD: mechanical engineering.

SUBSTANCE: method and device can be also used in chemical industry, power engineering. Direction and intensity of working medium flow is preset according to the method by form of rotor and its cellular structure being permeable at different directions. Catalytic material is used as cellular material; moreover power and mass exchange processes and chemical interaction take place inside the body of rotor including its developed surface. Rotor-type power-transforming device has at least one rotor mounted onto shaft for rotation, working medium supply and removal collectors. Rotor can have any geometric shape, for example, disc, cone, truncated cone or sphere being permeable at different directions of high-porous cellular material to form channels inside body of rotor for letting working medium flow. Working medium and heat removal collector is placed along periphery of rotor. Permeable rotor is made of material having non-uniform permeability and is provided with heat-exchange surface. Heat-exchange surface is disposed at one side of rotor which side is opposite to one-directed flow of working medium or it can be placed inside rotor when flows of working medium are oriented at different directions. As a cellular material the catalytic material or ceramic either metal carrier onto surface of which carrier the catalyst is applied. As a catalyst at least one noble metal and/or metal oxide is applied. Metal can be chosen from the group containing IV period transition metals. Direction and intensity of working medium flow can be adjusted according to the method as well as mass- heat-exchange processes can be intensified. Method also allows increasing heat output from unit of area of heat-exchange surface.

EFFECT: improved efficiency of operation.

8 cl, 3 dwg

 

The invention relates to mechanical engineering and can be used in the power industry, heat engineering, chemical technologies and other areas of production and in everyday life.

Known power-transforming device with multi rotors multi-purpose, using a friction surface for movement of the working environments and simultaneous heat and mass transfer processes, for example, (patent RF №2133935, F 28 D 11/02, 30.01.1998,; RF patent №2167369, F 24 F 3/14, 21.06.1999,) and teploelektrogeneratsiya device for the simultaneous production of heat and electricity, comprising a housing-heater combustion chamber, the fan Assembly with motor, disc rotor, the input and output connections (RF patent №2166702, F 24 H 6/00, 01.11.1999, - prototype).

Known method of intensification of heat exchange on the enclosing surfaces, including the creation of heat transfer surface eddy currents from rotating discs (RF patent No. 2122167, F 28 F 13/12,, 23.01.1997).

Shortcomings listed technical solutions is the low efficiency of disk fans, the lack of efficiency of the fins (heat transfer area), the complexity of the design of system coolant into the rotating rotors.

A known heat exchanger in A.S. No. 901809, F 28 D 19/04, 09.04.80 - technical decision - wayorganization flow of working medium in the heat exchanger of the rotary type. The disadvantage of this method of operation of the device is its lack of efficiency of the organization of the working environment.

Known for high-performance vehicles with the use of highly porous cellular materials: heat exchanger (patent RF №2078295, MKI F 28 D 9/00, 08.06.1993,), chemical reactors, filters (Amechanical. Structural and hydraulic properties of highly porous cellular materials on metal base, Perm, 1998).

Known catalytic engine (patent RF №2135804, F 02 G 1/4, 27.08.99), based on the catalytic oxidation of the fuel in an external combustion chamber. The engine can be used to generate electrical or mechanical energy. The cylinder piston is located inside the combustion chamber so that its lateral surface forms an inner heat exchange wall of the combustion chamber. The combustion chamber is filled with three-dimensional catalytic structure which may be formed, for example, a highly porous mesh media with open cells. Many catalyst particles associated with three-dimensional media through the layer of secondary media with high specific surface area.

Known thermoelectric generator (patent RF №2197054, N 02 N 3/00, 20.01.03)that converts the heat of combustion of liquid or gaseous fuel, including the camera catalytic combustion of fuel containing the second catalyst, and thermoelectric converters. In particular, the camera catalytic combustion is formed by at least one thermoelectric Converter and filled three-dimensional structure that contains the catalyst and is located on the high-temperature surface of thermoelectric Converter. As a three-dimensional structure of the camera catalytic combustion is filled with the metal or ceramic highly porous cellular material, on which is deposited a catalyst. Catalytic combustion is carried out on the surface of thermoelectric Converter or close to it. For combustion of different fuels, the optimized compositions of catalytic materials, as well as the ratio of the fuel/air so that the temperature in the catalytic combustion chamber is adjustable from 105 to 600°C.

However, for their operation requires additional devices for transportation, distribution environments on the surface of the permeable nozzle and / or their mixture before it enters the machine.

The task of the invention is the ability to control the direction and intensity of the working environment, the intensification of mass-heat transfer processes, including the increase of heat removal per unit area of heat transfer surface.

Fasting is undertaken the task is solved thanks that way the organization of the working environment in energy-transducing device of the rotary type, the direction and intensity of the working environment define the geometric shape of the rotor and its structure, permeable in different directions, made of cellular material. As the porous material is a catalytic material, and the processes of energy and mass exchange and chemical interaction occurs inside the body of the rotor with the participation of its developed surface.

The method is implemented in energy-transducing device of the rotary type, which contains at least one rotor mounted on the shaft for rotation and the collector supply and discharge of the working environment. The rotor is made of any geometrical shape, for example, in the form of a flat disk, cone, truncated cone, a sphere, made of permeable in different directions of cellular material (ITEM) with the formation of channels for the flow of the working environment. The rotor can be made of a material with heterogeneous permeability. The rotor periphery provided with a reservoir discharging working fluid and heat. The rotor may be provided with a heat exchange surface which is placed on one side of the rotor opposite to the unidirectional flow of the working environment, or within the rotor, multidirectional flows of the working environment. Kacha is the firmness of the foam material used catalytic material. As the catalytic material is a ceramic or metal carrier, which caused a catalyst. As a catalyst on the carrier caused, at least one noble metal and/or metal oxide selected from the group comprising transition metals of the fourth period.

These characteristics have been identified in other technical solutions in the study of the level of the art and, therefore, the decision is novel and involves an inventive step.

1 shows a power-transforming device is a rotary type of ITEM with a counter current working environment; figure 2 shows a power-transforming device is a rotary type of ITEM with counter flow of the working medium and the heat exchange surface within the rotor; figure 3 shows the power-transforming device is a rotary type of ITEM with a heat transfer surface located on the opposite side of the rotor from the unidirectional flow of the working environment.

Power-transforming device of the rotary type contains at least one rotor 1 mounted on a shaft for rotation and has a collector supply of the working environment 2 and discharging working fluid and heat 3. The rotor 1 may be made of any geometrical shape, such as a flat disk, cone, truncated cone, sphere, and so on, however, he made pronice is diversified in different directions from ITEM with the formation of channels for the flow of working medium through the body of the rotor. Permeable rotor can be performed with heterogeneous permeability or ordered (anisotropic) permeability. The rotor 1 may be provided with a heat exchange surface 4. The heat exchange surface for the organization currents can be installed in any part of the rotor. When the unidirectional flow of the working fluid, the heat exchange surface placed opposite to the flow side of the rotor (see figure 3). When the multi-directional flow of the working medium of the heat exchange surface is placed inside the body of the rotor (see figure 2).

The method is as follows.

The method of organization of the working environment in energy-transducing device of the rotary type is that during the rotation of the rotor, having a three-dimensional configuration of any geometric shape and permeable in various (specified) destinations, creates a pressure field in a production environment, resulting in the movement of the medium inside of the rotor and in the external environment,

due on the outer surface of the rotor of the pressure distribution depending on the configuration of the rotor.

Thus, through the power-transforming device can provide the passing one, two or more environments, which are in direct contact with the rotor. The mechanical energy required to transport environments and its subsequent use, eredita rotor, and in the body of the rotor due to its advanced internal surfaces are all kinds of metabolic processes working environments: mixing, heat transfer, chemical processes, phase separation, etc.

The intensity of the flow of working media is given by a geometric shape of the rotor nonuniform permeability of the material of the rotor and the speed of its rotation.

Example 1:

The method of organization of the working environment in energy-transducing device, which is mounted on the shaft of rotation of the rotor, for example, in the form of a flat disk from ITEM and a collector supply of the working environment on each side of the rotor (see figure 1), and a common outlet manifold. If you use the same environment (“And” and “And”), this device works as a fan or a compressor with a low level of aerodynamic noise due to the porosity of the rotor. If the environment is “a” and “b” are different, the device also serves as a mixer.

Example 2:

The method of organization of the working environment in energy-transducing device, which is mounted on the shaft of rotation of the rotor, for example, in the form of a flat disk from ITEM, and within the rotor installed impenetrable environments “a” and “b” heat transfer surface and a collector supply of the working environment on each side of the rotor (see figure 2), and a common discharge header.

Additional supply or dissipation mo what should be done by radiant heat transfer from each side, and the temperature difference between the environments “a” and “b” can be used to generate electricity, for example, using thermoelectric converters.

Example 3:

The method of organization of the working environment in energy-transducing device, which is mounted on the shaft of rotation of the rotor, for example, in the form of a flat disk from ITEM and a collector supply of the working medium from one side of the rotor (see figure 3)and the heat exchange surface is placed on the other (one) side of the rotor opposite to the unidirectional flow of the working fluid, and heat dissipation (absorption) can occur on the inner surface of the rotor due to chemical reactions, sorption processes or phase transitions.

The use of the claimed device of the rotary type for himichnih processes.

For the manufacture of a rotor of the inventive energy-transducing devices use a ceramic or metal ITEM. Mainly on ITEM cause secondary media from γ-Al2About3. The secondary carrier is injected catalytically active composition consisting, for example, of one or more noble metals (Pt, Pd, Pt/Pd/Rh and other), or oxides of transition metals (CR2About3, CiO, COO, Mno, their compositions, and others). The choice of the substrate material (ITAM) and composition of the catalytic composition determine eleesa process parameters (composition, temperatures, aggressive environments).

Example 4. For burning fuel (natural gas) used a rotor in the form of a flat disk made of ceramic ITEM with the secondary carrier as a catalytic composition introduced manganese oxide and finely dispersed palladium in amounts, respectively, 5 and 0.1 wt.% in relation to the mass of the secondary carrier or a finely dispersed platinum in the amount of 0.5 wt.% in relation to the mass of the secondary carrier. Previously, the rotor was heated to the ignition temperature (200-250°C), then turned on the supply of natural gas and air in the channels of the rotor began the process of oxidation of natural gas to produce heat, and heating of the rotor is turned off. The output of hot air.

Example 5. Process for treatment of industrial gas emissions containing organic compounds, carbon monoxide and fine soot, used a rotor made of a metal ITEM (Nickel, nichrome, Invar, corrosion-resistant steel). On ITEM caused secondary media γ-Al2About3. As the active component caused highly dispersed platinum in the amount of 0.5 wt.% in relation to the mass of the secondary carrier. If the temperature of cleaned gases below 200-250°With the rotor pre-warmed up. Then enable the flow of cleaned gases and ozonopause mixture. In ka is the al rotor happened oxidation of organic compounds and carbon monoxide. Soot particles were retained in the pores and oxidized. The output of air, free from toxic components and particles of soot.

These examples show the efficiency of the claimed invention. Described in the examples, the compositions of the catalysts are not exhaustive. The rotor of the inventive device, made of ITEM, may have qualities such as heat resistance, durability, low hydraulic resistance, superior surface, long service life, depending on its purpose.

Experimental verification of the proposed technical solutions showed that the maximum transportable pressure of the working fluid (air) corresponds to the velocity head, defined by the peripheral speed of the rotating disk, and consumption expenditure corresponds to the characteristics of centrifugal fans appropriate dimensions with regard to hydraulic permeability disks. When fully open one or both end sides of the disk were provided with a uniform inlet of the working fluid (air) in the axial direction.

Effective heat transfer coefficient for impervious surface heat exchange with a reliable thermal contact with a metal ITEM was the size of 500-1500 W/m2° - depending on the material of the rotor and its density. Research the Finance was held on the disk rotors with a diameter of from 100 to 220 mm at speeds up to 6000 rpm, the thickness of the disks 7-16 mm Material - copper and stainless steel.

Compared with multi-energy-transducing devices (prototype) the proposed method and device allow for the same peripheral speeds of the rotor and consumable media to be ~ 4 times greater pressure and ~ 5 times smaller than the size of the rotor in the axial direction, with a significantly more powerful implementation of heat-mass transfer and other processes of energy transformations.

Limiting the capabilities of the devices are limited by the mechanical properties of permeable materials.

1. The method of organization of the working environment in energy-transducing device of the rotary type, characterized in that the direction and intensity of the working environment define the shape of the rotor and its cellular structure, permeable in different directions, as the mesh material is a catalytic material, and the processes of energy and mass exchange and chemical interaction occurs inside the body of the rotor with the participation of its developed surface.

2. Power-transforming device of the rotary type, containing at least one rotor mounted on the shaft for rotation, the collector supply and discharge of working medium, characterized in that the rotor is made of any geometrical shape, such as a disk, a cone, truncated cone, the sphere, the C-permeable in different directions of cellular material with the formation of channels within the body of the rotor to the flow of the working medium, when this collector discharging working fluid and heat placed on the periphery of the rotor.

3. Power-transforming device is a rotary type according to claim 2, characterized in that the permeable rotor is made from a material with a heterogeneous permeability.

4. Power-transforming device is a rotary type according to any one of claim 2 and 3, characterized in that the rotor is provided with a heat exchange surface.

5. Power-transforming device is a rotary type according to claim 4, characterized in that the heat exchange surface is placed on one side of the rotor opposite to the unidirectional flow of the working environment.

6. Power-transforming device is a rotary type according to claim 4, characterized in that the heat exchange surface located inside of the rotor with multidirectional flows of the working environment.

7. Power-transforming device is a rotary type according to any one of claim 2 to 6, characterized in that as the mesh material used catalytic material.

8. Power-transforming device is a rotary type according to claim 7, characterized in that the catalytic material is a ceramic or metal carrier, which caused a catalyst.

9. Power-transforming device is a rotary type according to claim 8, characterized in that as a catalyst to the media caused, at least one noble metal and/or metal oxide, select the tion from the group including transition metals of the fourth period.



 

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