Method of conversion of electric power to thermal power in ejection and vortex plant

FIELD: heat-power engineering; heating systems; water heating systems, public services, agricultural sector and transport facilities.

SUBSTANCE: steam from electric steam generator is delivered to jet apparatus nozzle where it is mixed with cold liquid flow for forming two-phase flow at acceleration to supersonic velocity. At mixing chamber outlet, this two-phase flow is decelerated for forming shock wave and converting the flow into liquid flow after shock wave. Then, flow is divided and one part is directed to heat exchanger of vortex tube where it is heated and directed for replenishment of electric steam generator. Other part is directed to nozzle apparatus where it is accelerated to supersonic velocity for forming two-phase flow, after which it is decelerated for converting it into liquid flow saturated with micro-bubble component. Nozzle apparatus outlet is connected with swirler inlet where vortex flow is formed; from swirler, flow is directed to vortex tube where heat is released and flow is divided into hot and cold components. From vortex tube, flow is directed to heat exchanger for transfer of heat to second loop; cooled liquid flow is directed to ejector inlet.

EFFECT: enhanced efficiency of plant.

1 dwg

 

The invention relates to the field of heating technology, in which it was possible to organize the process of heating the circulating fluid.

There is a method of converting electrical energy into thermal energy in the vortex heat generator including a water flow from a centrifugal pump injection pipe in the accelerator, which is made in the form of a swirl with a cylindrical vortex tube, where the heat from the water, at the other end of the vortex tube mounted brake device, and the subsequent flow of the water back to the intake side of the pump, the other part of the water heating system with further return to the intake side of the pump (patent No. 2045715, IPC F 25 29/00).

The disadvantage of this invention is the presence of a source of mechanical energy of the centrifugal pump, which has a low coefficient of conversion of electrical energy into mechanical energy - 0.6 - 0.65, which significantly reduces the efficiency of the installation. The closest to this is the way ejector heat-generating installation, including the supply of heated fluid is steam and chilled liquid flow to the input of an inkjet apparatus, where they mix with the formation of two-phase flow and flow acceleration to supersonic speed with the formation of the thread jump-rings, the heating of fluid in it, with subsequent supply part of the water in the steam boiler, feed another part of the flow in the heat-generating lattice with the acceleration of its flow to the speed at which the pressure drops to the vapor pressure and the formation of two-phase supersonic flow, the formation of a pressure jump, which heats up the liquid. The thread then served in the heat-generating unit and then to the input of an inkjet apparatus (patent No. 2127832, IPC F 04 R 5/54).

The disadvantage of this technical solution is that it does not fully utilize the kinetic and internal energy flow, flow with heat-generating device to the heat consuming device does not completely remove thermal energy of the collapse of microscopic vapor-gas bubbles.

The technical result of the invention is to increase the efficiency of the method by organizing more optimal process heat and heat consumption, which leads to increased efficiency.

The known method of converting electrical energy into thermal energy in injection and swirl the installation in which the ejector produces a mixture of hot fluid is steam and chilled liquid stream with the formation of two-phase flow and transfer it to the supersonic regime, with the formation in the flow of the pressure jump and the release of heat in it, is by converting video stream in a liquid, next part of the heated liquid stream is sent to electroprocedures, and the other part to allow the apparatus, where the stream is converted into two-phase flow, accelerated to supersonic speed, to provide a pressure jump and transferred into a liquid stream, filled with micropezidae pair with additional heat flow while new is that then the flow is directed into the swirl, the liquid stream rich microvesicles component directed in a vortex tube, where the collapse of bubbles, with the release of thermal energy, then from the vortex tube flow is directed into the heat exchanger, which ensures relief from the heat and transfer it to the consumer while another part of the flow of the ejector is sent to the vortex tube heat exchanger in which heat flow from the hotter outer layers of a vortex flow in the vortex tube on the heated portion of the stream serves for feeding in electroprocedures.

Important is that the use of ejector pump for the organization of the vortex flow in the vortex tube and heating the liquid stream is allowed to reject a mechanical drive centrifugal pump that, firstly, increased efficiency, and, secondly, has greatly simplified the design.

Important is that this is instrukciya allows you not only to organize the circulation flow, but to give the stream returned in electroprocedures, additional thermal energy released in the vortex tube, and consequently, to increase the efficiency of the whole installation.

The invention is illustrated the accompanying drawing. Injection and vortex unit to implement the method includes electroprocedures 1, ejector 2, to allow the apparatus 3, the swirler 4, a vortex tube 5, the heat pipe 6, the heat exchanger of the consumer 7.

Electroprocedures 1 its output is connected to the inlet of the ejector 2, the ejector 2 one output connected to the input to allow the device 3, the output nozzle of the apparatus connected to the inlet of the swirler 4, which is connected with vortex tube 5. Vortex tube with its outlet connected to the inlet of the heat exchanger consumer 7, the output of the heat exchanger is connected to the inlet of the ejector 2. Another output of the ejector 2 is connected to the entrance of the heat exchanger pipe 6, the output of which is connected to the steam generator 1. The device operates as follows. Pairs of elektroprostitute 1 enters the nozzle of the ejector 2 is mixed with a cooled liquid stream is accelerated with the formation of two-phase mixture. Two-phase flow is converted into a supersonic flow, which organises the pressure jump with the conversion of two-phase flow in single-phase liquid. With increasing pressure is restructured fluid that p is igodit to the heat. Of the ejector 2 part of the flow is directed to allow the apparatus 3 in which the liquid flow is accelerated to a velocity at which the pressure drops to the saturation pressure, the stream boils, turns into a two-phase transition in supersonic mode. In a supersonic flow is formed a pressure surge with the transition of two-phase flow in a liquid stream, filled microbubble component. The shape and size of the nozzles is selected so that you can increase progeterone flow. In the shock, the flow is additionally heated. Next, the flow goes to swirl 4. In the field of the swirling flow pattern of distribution of velocity, pressure and enthalpy determines the energy transfer between the layers of the swirling flow with vortex temperature separation. The process of reconstructing the velocity field with a decrease in peripheral speed of the internal flow contributes to the removal of kinetic energy from it to the outer layers with high peripheral speed. As a result of this effect, the outer layers are heated and cooled internal. Additionally in accordance with the nature of the pressure distribution in the vortex flow, the intensity of the collapse of micro bubbles component of the above in place more pressure, i.e. at the outer layers. Thus in the vortex tube creates a field of temperatures. Forth from the vortex of the second pipe flow enters the heat exchanger 7, which removes heat and transfer it to the consumer through the secondary circuit. The coolant in the secondary circuit may be gas or liquid.

Another part of the flow of the jet apparatus 2 serves to heat the pipe 6, the heat from the hot walls of the vortex tube and with higher values of pressure and temperature is sent to electroprocedures 1 for feeding.

The proposed method of installation may be used for auxiliary heating of different areas of the buildings, where there is no Central heating, or instead of centralized, as well as for hot domestic and industrial water supply.

The method of conversion of electric energy into thermal energy in injection and swirl the installation in which the ejector produces a mixture of hot fluid is steam and chilled liquid stream with the formation of two-phase flow and transfer it to the supersonic regime, with the formation in the flow of the pressure jump and the release of heat in it, converting the stream into a liquid, then part of the heated liquid stream is sent to electroprocedures, and the other part - in to allow the apparatus, where the stream is converted into two-phase flow, accelerated to supersonic speed, to provide a pressure jump and transferred into a liquid stream, filled with micropezidae steam to the heating Amiternum thread characterized in that the flow is directed into the swirl, the liquid stream rich microvesicles component directed in a vortex tube, where the collapse of bubbles emitting thermal energy, further from the vortex tube flow is directed into the heat exchanger, which ensures relief from the heat and transfer it to the consumer, while another part of the flow of the ejector is sent to the vortex tube heat exchanger in which heat flows from hotter layers of the vortex flow in the vortex tube on the heated portion of the stream serves for feeding in electroprocedures.



 

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