Steam turbine multiheat-pipe plant

FIELD: machine building.

SUBSTANCE: steam turbine multiheat-pipe plant includes evaporation chamber consisting of vertical evaporation sleeves connected to each other. Sleeves are connected to separation section the inner surface of which is covered with a grid consisting of strips made from porous material. Distributing header with nozzles is located at the top of separation section and demister and steam connection pipe is located at the bottom of separation section. Plant includes working chamber with power turbine the shaft of which is connected on the outer side with working element. Working chamber is equipped with high pressure steam inlet connection pipes and exhaust steam outlet connection pipes. Condensing chamber consists of distributing section the cover plate of which is equipped with exhaust steam inlet connection pipe. Bottom is covered with wick mass with holes and provided with holes to which vertical condensation sleeves covered on the inner side with a grid consisting of strips made from porous material, which is connected to wick mass, are connected. In the wick centre there located is cylindrical reservoir and feed pump the shaft of which is passed through cover plate of condensing chamber coaxially to shaft of power turbine wheel and rigidly attached to it. Pressure connection pipe is connected via pipeline to distributing header of evaporation chamber.

EFFECT: improving reliability and efficiency of steam turbine multiheat-pipe plant.

7 dwg

 

The 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 coaxial deplorably engine, which contains consistently located evaporation chamber equipped with a drop entrainment, the inner side walls are covered with a wick connected to the grid of a thin layer of porous material covering the inner surface of the end wall of the working chamber in the form of a cylindrical tube with a circular flange and screw on the outer surface, inside of which is placed coaxial power turbine, condensing 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 connected to the evaporation chamber pressure pipe, fitted with a nozzle, and a condensing zone, the inner side walls of which are covered with a wick and grate a thin layer of porous material on the inner surface of the end wall [RF Patent №2320878 F01K 17/00, 2008].

The main disadvantages of the known coaxial teletrabajo engine is the placement of the pump rotor on the outer surface the surface of the hull and a small contact area with hot and cold environments what complicates its design and limits the power.

Closer to the present invention is a coaxial multitopology engine, which contains consistently located evaporative chamber, 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 and connected to the lid of the separation section, the internal surface of which is covered with strips of the same porous material, the surface of the side walls is covered with a wick, which is a distribution manifold with injectors placed in the center of the entrance to the evaporator core, and drop entrainment connected via an annular seal with the working chamber made in the form of cylindrical pipe, which is connected on the outside with a working body, inside which is arranged coaxially of the power turbine, 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 - bars of Pori is the material 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 [RF Patent №2379526 F01K 25/00, F28D 15/02, 2010].

The main disadvantages of the known coaxial multicartridge engine are: the connection of the working chamber with the evaporation and condensation chambers through o-ring seals, which limits the amount of steam pressure at which the device operates, and reduces the tightness, the impossibility of placing the evaporating and condensing chambers at a distance from each other, which limits the scope of application of the device and, ultimately, reduces its reliability and efficiency.

The technical result for the solution of which the present invention is directed, is to increase the reliability and efficiency of the steam turbine multitemplate installation.

The technical result is achieved in a steam turbine multitemplate installation, which contains: located in the direction of the pair: the evaporative chamber, consisting of a vertical evaporator tubes, the inner side surface and the ends are covered with a grid of strips of porous material is material, and the United open ends with a cover of the separation section, the inner surface of side walls and a conical bottom which is covered with a grid of strips of porous material, and at the top of the separation section is a distribution manifold with injectors placed in the center of the entrance into the evaporation sleeves, and bottom-placed drop entrainment, under which is arranged a steam pipe; a working chamber made in the form of a housing of the power turbine with inlet nozzle high-pressure steam, through which it connects to the pipe with the steam outlet of the evaporation chamber, and the outlet nozzle of the exhaust steam, inside which is placed the power turbine wheel mounted on a shaft connected outside with a working body; a condensing chamber, consisting of the distribution section, the cover of which is provided with a suction inlet of the exhaust steam, is rigidly connected to the outlet nozzle of the exhaust steam of the working chamber, the bottom of which is covered by an array of wick holes and also performed with holes, which are attached to the open ends of the vertical condensation sleeve, the inner side surface and the ends are covered with a grid of strips of porous material connected with an array of wick, and in the center of the array of the wick is arranged in a cylindrical tank with PE is formirovanie walls, where feed pump, the rotor of which is mounted on the shaft, passed through the cover of the condensation chamber coaxial shaft of the power turbine wheel and rigidly connected therewith, and the discharge pipe is connected by a pipe with the discharge header.

Figure 1 presents a General view; figure 2-5 - sections; figure 6 and 7 sites offer steam turbine multitemplate installation (PMTU).

PMTU contains: located in the direction of the pair: the evaporation chamber 1 consisting of a vertical evaporator cylinder liner 2, the inner side surface and the ends are covered with a grid of strips of porous material 3, and connected to open ends with a cover of the separation section 4, the inner surface of the cover side walls and a conical bottom which is covered with a grid of strips of porous material 3, and the top section 4 is the distribution manifold 5, provided with nozzles 6, placed in the center of the entrance to the evaporation of the sleeve 2, and the bottom placed the drop entrainment 7 made in the form of concave perforated shield, which is arranged steam pipe 8; the working chamber 9, is made in the form of a power turbine housing 10, provided with inlet nozzle high-pressure steam 11, through which it connects to the pipeline (figure 1-7 not shown) with a steam pipe 8 of the evaporation chambers is 1, and the outlet nozzle exhaust (throttled) pair 12, within which is placed the power turbine wheel 13 mounted on a shaft 14 which is connected on the outside with a working body (figure 1-7 are not shown); the condensation chamber 15, consisting of a distribution section 16, the lid of which is provided with a suction inlet of the exhaust steam 17 rigidly connected to the outlet nozzle exhaust pair 12, and the bottom is covered with an array of wick with 18 holes and is made with holes, which are attached to the open ends of the vertical condensation sleeve 19, the inner side surface and the ends are covered with a grid of strips of porous material 3, which is connected with an array of wick 18, and in the centre of wick 18 is arranged in a cylindrical tank with perforated walls 20, which is placed feed pump 21, the rotor of which is mounted on the shaft 22, passed through the cover of the condensation chamber 15 coaxial to the shaft 14 of the wheel 13 of the power turbine, and rigidly connected therewith, and the discharge pipe 23 is connected by a pipeline (figure 1-7) with distribution manifold 5.

Based on the proposed PMTU 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 [Intestin. Thermal engineering. - M: IU Allergy, 1973, s], device and principle of operation of the screw pump [Timbuktu other Hydraulics, hydraulic machines and hydraulic drives. - M.: Mashinostroenie, 1982, s] and high efficiency of heat transfer in heat pipes partially filled with the working fluid-carrying heat, which used water, alcohols, halocarbons, liquid metals, etc [HIV and other Secondary heat flow meters and environmental protection. - Minsk: Enter. school, 1988, p.106].

The proposed PMTU works as follows.

Pre-attached to fixed supports (figure 1-7 not shown) housing the power turbine 10 of the working chamber 9, through which the pipe 11, the pipe (figure 1-7 not shown) connected to pipe 8 evaporation chamber 1 and the condensation chamber 15, providing a rigid coaxial connection shaft 14 and 22, connected through pipes 12 and 17, and the discharge port 23 of the condensation chamber 15 is also connected by pipeline (figure 1-7 not shown) to the collector 5 evaporation chamber 1, and the output end of the shaft 14 of the power turbine wheel 13 attached to desktop authority (generator, pump, compressor etc).

Before working chamber 1, 9, 15 PMTU remove air and fill the wick 18, the porous material of the grating 3, a cylindrical tank 20, the cavity feed pump 21, a discharge pipe (figure 1-7 not p is the cauldron) and the collector 5 of the working fluid, which is chosen depending on the temperature potential of hot and cold environments (fitting to remove air and working fluid (figure 1-7 not shown)), then PMTU set so that the evaporation chamber 1 was in contact with the hot environment, and the condensation chamber 15 from the cold.

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 grating 3 prevents the formation of steam film on the inner surface of the wall and thus intensifies the process of evaporation [Heat pipes and heat exchangers: from science to practice. Collection of scientific. works. - M.: 1990, s], generation of a vapour pressure equal to the pressure of a nutrient pump 21, which passes through the drop entrainment 7, shall be exempt from the carry out of the droplets of the working fluid, which are discarded on the porous material of the grating 3, absorbing these drops and again transporting them in the evaporation zone. Purified steam enters through the pipe 8, the pipeline (figure 1-7 not shown) and the pipe 11 into the housing 10 of the working chamber 9 of the impeller blades of the power turbine 13, rotates them, according to the rotary motion of the shafts 22 and 14, and accordingly the rotor, feed pump 21 and the torque m of the working body is the result of feed pump 21 moves the working fluid and creates the desired pressure therein, as a working body produces useful work. Within the body 10 of the working chamber 9 is isentrope talapatra pair with a simultaneous decrease of its temperature and pressure, and then spent crumpled steam enters through the pipes 12 and 17 in the condensation chamber 15, the pressure in which is much less than in the evaporation chamber 1. The steam condenses in the condensation sleeves 19 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 grating 3, the wick 18 and under the influence of capillary forces and vacuum is supplied to the suction inlet of the pump 21. Next, the working fluid through the discharge pipe (figure 1-7 not shown), the collector 5 and the nozzle 6 under the pressure created by the pump 21, 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 drop entrainment 7, and the cycle repeats.

As in the proposed PMTU there is no connection of the working chamber with the evaporation and condensation chambers through the rotating ring seals, this feature of its design allows to increase the pressure the steam and sealing devices in addition, the evaporation chamber can be set at a considerable distance from the work and condensation chambers and in any orientation relative to them in space, which greatly extends the functionality of PMTU and, ultimately, increases its reliability and efficiency.

Steam turbine politicalarena installation including spaced in the direction of vapor evaporating chamber, consisting of a vertical evaporator tubes, the inner surface of the ends of which are covered with a grid of strips of porous material connected to the lid of the separation section, the top of which is a distribution manifold with injectors placed in the center of the entrance to the evaporator core, and arranged below the drop entrainment, a working chamber in which is placed the power turbine wheel mounted on a shaft connected on the outside with a working body, a condensing chamber, consisting of the distribution section, the bottom of which is covered by an array of wick holes and made with holes to which are attached to vertical condensation sleeve, the inner surface of the ends of which are covered with a grid of strips of porous material connected with an array of wick in the center of which is arranged a cylindrical tank with perforated walls, which placed pitt the AUX pump, the rotor is connected to the wheel shaft of the power turbine, and the discharge pipe is connected by a pipeline to a distribution manifold, characterized in that the evaporation chamber inner side surface of the evaporator tubes, cover, side walls and a conical bottom of the separation section is covered with a grid of strips of porous material, in the bottom after the drop entrainment is arranged a steam outlet, the working chamber is in the form of a housing of the power turbine and provided with inlet nozzle high-pressure steam, through which it connects to the pipe with the steam outlet of the evaporation chamber, and the outlet nozzle of the exhaust steam, inside which is placed the power turbine wheel, the shaft, through the cover of the condensation chamber skipped shaft coaxial feed pump shaft of the power turbine wheel and rigidly connected with it, the lid itself is provided with a suction inlet of the exhaust steam, is rigidly connected to the outlet nozzle of the exhaust steam of the working chamber, and the side surface of the condensation liners covered with a grid of strips of porous material connected with an array of wick.



 

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