Coaxial multi-tube engine

FIELD: engines and pumps.

SUBSTANCE: proposed coaxial multi-heat pipe engine comprises evaporation and condensation chambers consisting of vertical shells with their inner surface coated with strips and grid made from porous material and wick, all having their open end faces connected to covers of appropriate distribution (separation) sections. Evaporation chamber separated, from below, by concave perforated entrainment separator, accommodates distributing manifold furnished with nozzles arranged at the evaporation shell centers. Evaporation and condensation chambers communicate, via O-ring, with working chamber housing coaxially mounted power turbines. The latter have the peripheral edges of their vanes rigidly attached to inner wall of said working chamber, along normal to said inner wall surface. Distributing manifold center accommodates cylindrical vessel and feed pump communicated with distributing manifold of evaporation chamber.

EFFECT: higher efficiency.

 

The present invention relates to a power system and can be used for utilization of secondary thermal energy and low-grade thermal energy from natural sources, namely the transformation of thermal energy into mechanical energy.

Known Converter of thermal energy into mechanical energy, containing consistently located evaporative chamber in contact with the hot environment, a working chamber within which is arranged coaxially one behind the other power turbine, is rigidly fixed to the peripheral edges of the blades to the inner surface of the wall of the working chamber along the normal to it, the condensation chamber in contact with the cold environment, feed pump [1].

The main disadvantages of the known Converter of thermal energy into mechanical energy is the inability to utilization of low-grade secondary and natural thermal energy, a bulky design and the inability to work when changing orientation in space, which limits the scope of its application and ultimately reduces its effectiveness.

Closer to the present invention is a coaxial deplorably engine, which contains consistently located evaporative chamber in contact with the hot medium, provided caplet what olicom, the inner side walls are covered with a wick connected to the grid, made of a thin layer of porous material covering the inner surface of the end wall of the working chamber made in the form of a cylindrical tube with a circular flange and screw on the outer surface of the inside of her arranged coaxially one behind the other power turbine, is rigidly fixed to the peripheral edges of the blades to the inner surface of the wall of the working chamber along the normal to it, the condensation chamber connected to the working chamber via an annular seal, consisting of a cage that covers the screw surface of the working chamber, forming a feed pump, and the condensation zone, the inner side walls which covered with a wick connected to the grid, made of a thin layer of porous material covering the inner surface of the end wall, and the condensation chamber is connected to the evaporator through the feed pump discharge pipework supplied at the end of the nozzle.

The main disadvantages of the known coaxial teletrabajo engine are placing the pump rotor on the outer surface of the shell, which makes it difficult to link its parameters (pressure, performance, and so on) with the power device, a small contact area with hot and cold environments and grounded the Naya these low power (less than 1 kW), that limits the scope of its application for disposal of low-grade heat secondary and natural sources in an industrial scale and reduces its effectiveness.

The technical result for the solution of which the present invention is directed, is the increased power coaxial teletrabajo engine and the associated possibility of its application on an industrial scale for heat recovery (including low-grade) in various sectors of the national economy and efficiency.

The task is implemented in coaxial multicentrum engine (CMTD), which contains consistently located evaporative chamber in contact with the hot medium consisting of a vertical evaporator tubes, the inner side surface which is covered with thin strips of porous material formed between a groove and end - bars of the same bands, connected by an open end with a cover of the separation section with an inner surface covered with strips of the same porous material, in which is located a distribution manifold with injectors placed in the center of the entrance to the evaporator core, separated from the bottom of the drop entrainment, made in the form of concave perforated shield with surface boscovichian, covered with a wick and is connected via an annular seal with the working chamber made in the form of a cylindrical pipe, which is connected on the outside with a working body, inside which is arranged coaxially one behind the other power turbine, is rigidly fixed to the peripheral edges of the blades to the inner surface of the wall of the working chamber along the normal to it, which is connected via an annular seal with a condensation chamber consisting of a cylindrical distribution section, the bottom of which is covered by an array of wick with holes and holes, which are attached to the open ends of the vertical condensation sleeve with the inner side surface covered with stripes, and end - lattice strips of porous material forming between the grooves and connected to the array of the wick in the center of which is arranged a cylindrical tank with perforated walls and pump, the rotor of which is mounted on a shaft rigidly connected with the axis of the power turbine, and pressure pipe from the distribution manifold into the evaporation chamber.

In Fig.(1-7) the proposed coaxial multitopology engine (CMTD).

KMTTG contains located along a pair of: evaporating chamber 1 consisting of a vertical evaporator cylinder liner 2, the inner side surface is here covered with stripes, and end - lattice strips of porous material 3 forming between the grooves 4 and connected to the open end with a cover of the separation section 5 with the internal surface is also covered with strips of the same wick 3, which is a distribution manifold 6, provided with a nozzle 7, placed in the center of the entrance to the evaporator sleeve 2, separated from the bottom of the drop entrainment, made in the form of concave perforated shield 8 with the surface of the side walls, covered with a wick 9 and is connected through the annular seal 10 with the working chamber 11. The camera 11 is made in the form of a cylindrical pipe, which is connected on the outside with a working body (not shown), inside which is arranged coaxially one behind the other power turbine 12, 13, is rigidly fixed to the peripheral edges of the blades to the inner surface of the wall of the working chamber 11 along the normal to it, and is connected to the condensation chamber 14 through the annular seal 15. The condensation chamber 14 consists of a cylindrical distribution section 16, the bottom of which is covered by an array of wick 17 with holes and holes, which are attached to the open ends of the vertical condensation sleeve 18, with the inner side surface covered with a lattice of strips of porous material 3 forming between the grooves 4, the side bars of the same material,and connected to the array of the wick 17. In the center of the wick 17 is arranged in a cylindrical tank with perforated walls 19, which are placed feed pump 20, the rotor of which is mounted on the shaft 21, is rigidly connected with the axis of the power turbine 13, and the discharge pipe 22 from the discharge header 6.

Based on the proposed KMTTG core cycle steam power plant is the Rankine cycle, according to which positive work steam expansion in the turbine is significantly greater than the negative pressure in the compression condensate [3, s], device and principle of operation of the screw pump [4, s] and high efficiency of heat transfer in heat pipes, which are divided into three sections: the zone of evaporation (heat supply), the adiabatic zone (heat transfer) and the condensation zone (exhaust heat), covered inside the wick and partially filled with the working fluid - carrying heat, which used water, alcohols, halocarbons, liquid metals, etc [5, p.106].

Offer KMTTG works as follows.

Previously in the open area of the outer surface of the working chamber 11 is mounted a rotor (not shown)rigidly connecting it with the camera 11 and the stationary part of the working body (e.g., generator, pump, compressor etc). Before working chamber 1, 11, 14 KMTTG remove air and fill the wicks 9, 18, porous mater the al strips and grids 3, cylindrical tank 19, the cavity feed pump 20, the pressure line 22 and the collector 6 of the working fluid, which is selected depending on thermal capacity of the cold and hot environments (fitting to remove air and working fluid supply not shown), after which KMTTG set so that the evaporation chamber 1 was in contact with the hot environment, and the condensation chamber 14 is cold, and is rigidly fixed them. As a result of evaporative heat sleeves 2 evaporation chamber 1 the evaporation of the working fluid with the inner surface of the evaporating cylinder liner 2, and the porous material of the strips and grids 3 prevents the formation of steam film on the inner surface of the wall and thus intensifies the process of evaporation [6, s], generation of a vapour pressure equal to the pressure of a nutrient pump 20, which passes through the concave perforated separation shield 8, shall be exempt from the carry out of the droplets of the working fluid, which are discarded on the wick 9 and the porous material 3, absorbing these drops and again transporting them in the evaporation zone. Purified steam enters into the working chamber 11 on the blades of consecutive power turbine 12, 13, rotating together with the housing of the working chamber 11, and accordingly informs the rotary motion of the rotor is icatalog pump 20 and the torque M of the rotor of the working body, resulting feed pump 20 moves the working fluid and creates the desired pressure therein, and a working body produces useful work. In rotating cavity of the working chamber 11 is isentrope talapatra pair with a simultaneous decrease of its temperature and pressure [3, s], then spent crumpled steam enters stationary condensation chamber 14, the pressure in which is much less than in the evaporation chamber 1. The steam condenses in the condensation liner 18 by contact of their outer surface with cold environment, then the resulting condensate of the working fluid is absorbed by the porous material of the strips and the grating 3, the wick 18 and under the influence of capillary forces and vacuum is supplied to the suction inlet of the pump 20. Next, the working fluid through the discharge pipe 22, the collector 6 and the nozzle 7 under the pressure created by the pump 20, the value of which determines the working steam pressure in the evaporation chamber 1, is sprayed on the inner surface of the evaporating cylinder liner 2, which is above the evaporation process, after which the steam is released from the droplets of the working fluid on the shield 8 and the cycle repeats.

As follows from the description of operation of the device, the power KMTTG can be increased by increasing the number of evaporator 2 and condensatio the different sleeves 18, which theoretically can be arbitrarily large and is practically limited to structural and technological considerations. Accordingly, the maximum power KMTTG can also be very significant.

Thus, the proposed KMTTG can significantly increase the amount of mechanical and electrical energy derived from the utilization and natural thermal energy potential, which ensures its high performance.

LITERATURE

1. As the USSR №2056606 F28D 15/02, 1981.

2. RF patent №2320878 F01K 17/00, 2008.

3. I.N. Sushkin. Thermal engineering. - M.: metallurgy, 1973, 480 S.

4. T.M. Basta other Hydraulics, hydraulic machines and hydraulic drives. - M.: Machinest., 1982, 424 S.

5. V.V. Kharitonov and other Secondary heat flow meters and environmental protection. - Minsk: The High. school, 1988, 170 S.

6. Heat pipes and heat exchangers: from science to practice. Collection of scientific. Tr. - M., 1990, 157 S.

Coaxial multitopology engine containing consistently located evaporation chamber in which is placed a nozzle connected with the pressure pipe, and drop entrainment, the inner surface is covered with a lattice of a thin layer of porous material in contact with the hot environment, connected via an annular seal with the working chamber made in the form of a cylinder is nticeship pipe, connected on the outside with a working body, inside which is arranged coaxially one behind the other power turbine, is rigidly fixed to the peripheral edges of the blades to the inner surface of the wall of the working chamber along the normal to it, which is connected via an annular seal with a condensation chamber, the internal surface of which is also covered by a lattice of a thin layer of porous material in contact with the cold environment, feed pump, wherein the evaporation chamber consists of a vertical evaporator tubes, with the inner surface of the side walls, covered with strips of a thin layer of porous material formed between the grooves, and the ends of the lattice of the same bands, and the United open end with a cover of the separation section with an inner surface covered with strips of porous material, in which is located a distribution manifold with injectors placed in the center of the entrance to the evaporator core, separated from the working chamber below the drop entrainment, made in the form of concave perforated shield with the surface of the side walls, covered with a wick, a condensing chamber consists of a cylindrical distribution section, the bottom of which is covered by an array of wick with holes and holes, which are attached to open the burnt ends of the vertical condensation sleeve with the inner surface of the side walls, covered with strips formed between the grooves, and the ends of the lattice of a porous material, and connected to the array of the wick in the center of which is arranged a cylindrical tank with perforated walls, which placed the nutrient pump, the rotor of which is mounted on a shaft rigidly connected with the axis of the power turbine, and pressure pipe from the distribution manifold into the evaporation chamber.



 

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