Thermal-pipe steam-ejector cooling machine

FIELD: power industry.

SUBSTANCE: thermal-pipe steam-ejector cooling machine includes evaporation chamber of high pressure, which is connected to nozzle inlet of ejector. Receiving chamber of ejector is connected to evaporation chamber of low pressure. Diffuser is connected to condensation chamber equipped with wick. Evaporation chambers of high and low pressure are placed coaxially in one housing, their side walls are covered from the inside with wicks covered in their turn with casings with gaps at upper and lower edge walls. Evaporation chambers are divided between each other as to steam with horizontal partition connected to casing of evaporation chamber of high pressure. Inside evaporation chamber of high pressure there located is entrainment trap and receiving pipeline connected to distributing pipeline located in evaporation chamber of low pressure. After horizontal partition, the housing is equipped on the lateral side with vertical partitions after which there placed are condensing chambers covered from the inside with their wicks separated between each other with a partition into high-pressure segment and low-pressure segment. Ejectors are mounted into vertical partitions of condensing chambers and connected with their nozzle inlets to evaporation chamber of high pressure through distributing and receiving pipelines.

EFFECT: increasing efficiency of thermal-pipe steam-ejector cooling machine.

5 dwg

 

The present invention relates to power engineering and can be used for utilization of secondary thermal energy and low-grade thermal energy from natural sources, namely to get cold.

Known ejector refrigeration machine containing a heat generator, a condenser, an evaporator, an ejector, the regenerative heat exchangers and osmotic wall for conveying condensate from the low pressure cavity in the cavity of the high-pressure [1].

The main disadvantages of the ejector refrigeration machine is the inability to utilization of low-grade secondary thermal energy, thermal resources of natural sources and the complexity of the design, which limits the scope of its application and ultimately reduces its effectiveness.

Closer of the present invention is of the ejector refrigeration machine, which contains the boiler (evaporation chamber high pressure) high-boiling component, connected to the nozzle input ejector suction chamber which is connected to the evaporator of the low-boiling component (evaporation chamber to the low pressure, condenser, placed at the outlet of the ejector and is made of capillary-porous structures (wick), allowing capillary potential t is to asportingbet condensate from the section of the low pressure section of a high pressure (boiler) [2].

The main disadvantages of the ejector refrigeration machine is the inability to utilization of low-grade secondary thermal energy and heat resources natural sources, using as a working body of the two reagents, which complicates the operation and reduces its effectiveness.

The technical result for the solution of which the present invention is directed, is to increase the efficiency calatroni of the ejector refrigeration machine.

The technical result is achieved by the fact that teplotvornaja of the ejector refrigeration machine (TPAHM) includes placed in the same housing evaporator high pressure chamber connected to the nozzle input ejector suction chamber which is connected to the evaporator low-pressure chamber, and the diffuser to the condensation chamber, provided with a wick partially filled with boiling liquid, and evaporation chamber, high and low pressure placed coaxially in one case, their side walls are covered from the inside wicks, covered, in turn, covers with gaps at the top and bottom end walls, the inner surface of which is covered with strips of capillary material, connected to the evaporative wicks chambers separated by a pair of horizontal partition, is United with the casing of the evaporator high pressure chamber, within the drop entrainment and intake piping passing through the horizontal partition and coupled with located in the evaporation chamber to the low pressure distribution pipeline, when the horizontal septum body side provided with vertical partitions, which placed the condensation chamber, covered inside their wicks, separated by a partition on the segment of high pressure, coupled with evaporative wick the high-pressure chamber, and the segment of low pressure, coupled with evaporative wick chamber of low pressure covered, in turn, covers with a gap at its end walls, the inner surface of which is covered with strips of capillary material connected with wicks their condensing chambers, and also separated by a partition, and the ejectors mounted in the vertical walls of the condensation chambers and connected their deployme inputs from the evaporation chamber through a high pressure distribution and the receiving pipeline.

Based on the proposed TPAHM is the ability of the transport fluid wick through capillary forces from the zone of high pressure in the area of low pressure and high efficiency of heat transfer in heat pipes covered and the inside of the fuse and partially filled with the working fluid-carrying heat which are divided into three sections: the zone of evaporation (heat supply), the adiabatic zone (heat transfer) and the condensation zone (exhaust heat) [2; 3, p.146; 4, p.106].

Figure 1 presents a General view, figure 2, 3 - sections, figs.4, 5 sites proposed TPAHM.

TPAHM includes placed coaxially in the housing 1 evaporation chamber, high and low pressure 2 and 3 covered the inside wicks 4 and 5, covered, in turn, covers 6 and 7 with gaps at the top and bottom end walls 8 and 9 respectively, the inner surface of which is covered with strips of capillary material 10 and 11 connected to the fuses 4 and 5, separated by a pair of horizontal partition panel 12 that is connected to the casing 6 of the evaporator high-pressure chamber 2, in which is located the drop entrainment 13 and the intake pipe 14 passing through the partition 12 and connected with located in the evaporating low-pressure chamber 3 distribution pipe 15, and after the horizontal partition 12 to the side of the body 1 is provided with vertical partitions 16 and 17, which placed the condensation chamber 18 and 19, respectively, coated on the inside wicks 20 and 21, separated by a partition 22 in the segment of high pressure, coupled with the wick 4, and the segment of low pressure, coupled with the wick 5, covered, in turn, hides the Hami 23 and 24 with a gap at the end walls 25 and 26, the inner surface of which is covered with strips of capillary material 27 and 28 connected to the fuses 20 and 21, and also divided by a partition 22, and the vertical walls 16 and 17 are mounted ejectors 29 and 30, United their deployme inputs with evaporating high-pressure chamber 2 distribution and adoptive pipes 15 and 14, foster cameras with evaporating low-pressure chamber 3, and diffusers - condensing chambers 18 and 19, respectively.

The proposed TPAHM works as follows.

Before the beginning of work of the chambers 2, 3, 18 and 19 TPAHM remove the air and pumps the working fluid, which is selected depending on thermal capacity of the hot and heated environments and the desired temperature of the cooled coolant (nozzle to remove air and working fluid supply to 1, 2, 3 not shown), in a quantity sufficient to fill the pore volume of the fuses 4, 5, 20, 21 and strips of capillary material 10 11, 27, 28, after which the casing 1 TPAHM set so that the evaporation of the high-pressure chamber 2 contact with the hot medium, evaporating the low-pressure chamber 3 in contact with a cooled fluid and condensing chambers 18 and 19 in contact with the medium being heated. As a result of heating of the end face 8 of evaporation, R is the working fluid in the grooves between the strips of capillary material 10, which prevents the formation of steam film on the inner surface of the end face and thus intensifies the process of evaporation [4, s], steam creates pressure in the evaporator of the high-pressure chamber 2 P1received the steam passing through the drop entrainment 13, shall be exempt from the carry out of the droplets of the working fluid, which is dropped on the surface of the strips 10 and transported them back to the evaporation zone, through the suction pipe 14 enters the distribution pipe 15, in which the flow is divided into two parts and under pressure enters the ejectors 29 and 30. At the same time in the evaporator low-pressure chamber 3 as a result of heating of the end face 9, the cooled coolant at a low temperature evaporation of the working fluid transported by the wick 5 in the grooves between the strips of capillary material 11 at low pressure P3similar to the evaporation chamber 2, causing the coolant is cooled to the desired temperature. The ejectors 29 and 30 high-pressure steam passes through the nozzle, pulling the steam supplied through the receiving chamber of the evaporation chamber 3, thereby creating it a low pressure P3blended with him, and at an average pressure P2through diffusers enters the condensation chamber 18 and 19. In chambers 18 and 19 on the domestic is it the surface of the ends 25 and 26 is the condensation of the vapor of the working fluid the absorption of the formed condensate strips of capillary material 27 and 28, which is due to capillary forces transported the fuses 20 and 21 segments of high and low pressure connected with them wicks 4 and 5, and strips of capillary material 10 and 11 in the zone of evaporation evaporation chambers high and low pressure 2 and 3, respectively, after which the cycle repeats.

Thus, the proposed TPAHM provides efficient refrigeration due to the utilization of thermal energy potential (energy, waste water, waste gases and so on) and thermal resources natural sources (solar energy, water, etc).

LITERATURE

1. As the USSR №1606820, Ál. F25B 1/06, 1990.

2. A.S. USSR No. 1537979, Ál. F25B 1/06, 1990.

3. HIV and other Secondary heat flow meters and environmental protection. - Minsk: Enter. school, 1988, 170 S.

4. Heat pipes and heat exchangers: from science to practice. Collection nausner. - M.: 1990, 157 S.

Teplotvornaja of the ejector refrigeration machine comprising evaporating the high-pressure chamber connected to the nozzle input ejector suction chamber which is connected to the evaporator low-pressure chamber, and the diffuser to the condensation chamber, provided with a wick partially filled with boiling liquid, characterized in that the evaporation chamber high the CSOs and low pressure placed coaxially in the same housing, their side walls are covered from the inside wicks, covered, in turn, covers with gaps at the top and bottom end walls, the inner surface of which is covered with strips of capillary material, connected to the evaporative wicks chambers separated by a pair of horizontal wall connected to the casing of the evaporator high-pressure chamber, in which is located the drop entrainment and intake piping passing through the horizontal partition and coupled with located in the evaporation chamber to the low pressure distribution pipeline, and after the horizontal septum body side provided with vertical partitions, which placed the condensation chamber, covered inside their wicks, divided between a wall segment of a high pressure, coupled with evaporative wick the high-pressure chamber, and the segment of low pressure, coupled with evaporative wick chamber of low pressure covered, in turn, covers with a gap at its end walls, the inner surface of which is covered with strips of capillary material, connected to the wicks of their condensation chambers and separated by a partition, and the ejectors mounted in the vertical walls of the condensation chambers and connected her with Provimi inputs from the evaporation chamber through a high pressure distribution and intake piping.



 

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