Efficient vapour condenser for microgravity conditions

FIELD: ventilation.

SUBSTANCE: vapour condenser containing a steam channel formed by the condensation surface, the condensation surface has a convex curved shape with an internal longitudinal edge on both sides of which cavities for condensate are formed, wherein R3>R2, where R3 is the radius of curvature of the condensation surface in the upper part of condenser channel; R2 is the radius of curvature of the condensation surface in the cavity.

EFFECT: increase in the efficiency of condenser due to an increase in intensity of condensation and optimisation of two-phase flow stream.

6 dwg

 



 

Same patents:

FIELD: heating.

SUBSTANCE: group of inventions relates to a condensation plant with air cooling and may be used for power plants. The condenser comprises a tubular jacket, which has an open upper part and an open lower part, a ring of bundles of tubular panels arranged vertically and at the angle to each other. Each of bundles of the tubes comprises the main condensation area and the secondary condensation area, is adapted for passage of the air flow through it in order to condense liquid in panels and is made so that air flow passes via panels and exits through the upper part of the jacket. Inside the jacket at the level of the soil there is a pipeline for steam supply. The condenser is equipped with a system of removal of non-condensing gases with active or passive devices for control of local flow of removed mixture from non-condensed gases and added steam.

EFFECT: reduced noise level, prime cost and/or energy consumption.

20 cl, 2 dwg

FIELD: power engineering.

SUBSTANCE: double-stage condenser comprises a vertical header with an upper steam-distributing, middle relief and lower condensate-collecting chambers, heat exchange pipes of the first and second condensation stages, fixed by input and output ends in the walls of the steam-distributing chamber near the relief chamber, and in the walls of the walls of the relief chamber and the condensate-collecting chamber, accordingly. In the relief chamber of the vertical header the output ends of the pipes of the first condensation stage are arranged above the input ends of pipes of the second condensation stage. A circular canopy is fixed to the wall of the relief chamber in a transverse manner, being located below the output ends of pipes of the first condensation stage, but above the input ends of the pipes of the second condensation stage. The canopy has condensate-collecting grooves arranged in plan between input ends of the pipes of the second condensation stage and condensate-draining holes.

EFFECT: reduced capture of the first stage condensate into pipes of the second condensation stage and higher efficiency of condensation at the second condenser stage.

3 cl, 3 dwg

FIELD: oil and gas industry.

SUBSTANCE: steam-gas mixture is supplied to a surface air cooling condenser consisting of two and more sections connected to each other, each of which includes a housing, side walls, upper and lower tube sheets rigidly attached to each other with condensate tubes and side walls, which are parallel located, an upper chamber with a cover plate and interaction holes of inlet and outlet sections, which is separated with a vertical partition wall into inlet and outlet cavities, and a bottom with a condensate outlet branch pipe, and equipped with a branch pipe with an air supply diffuser; at that, the inlet cavity of the section that is the first one in the mixture flow direction is equipped with a supply branch pipe; outlet cavity of the section that is the last in the mixture flow direction is equipped with a non-condensed gas removal branch pipe, and condensate outlet branch pipes are combined by a header with the condensate removal branch pipe.

EFFECT: invention allows enlarging functional capabilities of the condenser and improving reliability and degree of removed non-condensed gas from steam-gas mixture at its condensation.

2 cl, 3 dwg

Condensing works // 2363903

FIELD: heat engineering.

SUBSTANCE: invention relates to units for air vapor condensation. Condensing works with located on bearing structure, located, particularly roof-shaped, heat-exchange elements, to which by means of ventilators it is supplied cooling air, consisting wind wall. Bottom edge of wind wall is shifted outside further, then top edge of wind wall, herewith wind wall by height passes roughly up to top edge of distributive vapor line.

EFFECT: invention provides reduction of negative influence of approaching from one side airflows on located on bearing structure condensing works.

3 dwg

Heat exchanger // 2361163

FIELD: heating.

SUBSTANCE: invention relates to nuclear power engineering, namely, to heat exchangers incorporated with passive heat removal systems intended for nuclear power plants. The proposed heat exchanger comprises the chamber, hear exchange pipe bundle arranged in the duct receiving cooling medium fed from below, and hear carrier drain circuit. Vapour feed branch pipe is connected to the said chamber, the branch pipe outlet being arranged above the heat exchange pipes ends. Note here that outlets of the said pipes are immersed in condensate.

EFFECT: simple design, higher reliability, lower weight and cost, and reduced metal input.

2 dwg

Condensing unit // 2347995

FIELD: heating.

SUBSTANCE: present invention pertains to devices for air condensation of vapour. The condensing unit has several dome-shaped heat-exchange elements, to which cold air is supplied through ventilators. At the edge of the condensing unit there is an aerodynamic shield. At the edge, there is a wind wall, made from plate elements. The plate elements have several vertically passing hollow chambers. In different sections of the wind wall, an air stream (L) can be applied, creating an aerodynamic shield over the wind wall. The plate elements are trapezoid or wave-like and on one side or both sides, are closed by plates, forming a hollow chamber. Air stream (L) for aerodynamic shielding is partially a separate stream (L1) from peripheral ventilators. The separate stream (L1) can be regulated by a commutative slide valve, located in the cold air stream (K). Air stream (L) is partially formed by extra ventilators. The invention can be used in different areas, without effecting considerable structural changes.

EFFECT: possibility of use in different fields without effecting considerable structural changes.

7 cl, 5 dwg

FIELD: the invention refers to cooling technique.

SUBSTANCE: the capacitor with air cooling has a air-steam exchanger (3) which has tubes ribbed from outside (2) for partial immediate condensation of steam (1) with outside air (4). The heat exchanger (3) is fed up with steam (1) from the upper distributing chamber (24) up to the lower chamber (25) in which not yet condensed steam (22) and condensate (8) are accumulated. The not yet condensed steam (22) in the air-steam heat exchanger (3) is condensed in the air-steam section of the capacitor with air cooling, in the space fulfilling the function of a mixing capacitor (9) with spraying water from the section (7) of water-air cooling of the capacitor with air cooling from where incondensable gases are also fed. The water (13) heated in the mixing capacitor (9) is cooled in the second time in the water-air heat exchanger (7).

EFFECT: increases safety of operation, controllability, reduces expenditures on creation of the installation.

17 ck, 17 dwg

FIELD: steam power plants.

SUBSTANCE: the waste steam pipe-line for a steam power plant has several air-cooled condenser members, main pipe-line (10) of waste steam with at a least two tees (6) passing to the respective condenser member, the cross-section of the main waste steam pipe-line (10) past point (7) of connection of tee (6) is reduced in the cross-section characterized by the fact that the main waste steam pipe-line (10) is positioned at angle (W) to the horizontal (H) rising in the direction of flow of waste steam.

EFFECT: improved construction.

FIELD: baking industry.

SUBSTANCE: proposed plant includes trap hood and heat exchange cooling unit connected with it and mounted under it; cooling unit includes jacket with pipe line located over its center. Heat exchange cooling unit is used for forced circulation of cold air between jacket and pipe line inside it directing the flow in required direction: in cold season outside air is delivered and at hot season air from floor areas is delivered.

EFFECT: simplified construction; enhanced ecology; saving of water.

1 dwg

FIELD: water vapor condensation.

SUBSTANCE: devices for water vapor condensation in vacuum formed by a vapor ejector device with the use of air as a cooler, having sections of multirow condensers made in the form of tube bunches, and partial condensers made in the form of tube bunches, and a common condensate header, in each section each row of vapor condensers passing the cooling air, and which are made of equally spaced round-section tube bunches, is connected with the aid of transfer tubes or ducts to its own section of the row, not row installed above the rows of condensers and connected to the vapor ejector device, partial condensers also made of round-section tube bunches and equally spaced. Besides, for each row of condensers and the respective part of the row of partial condensers its own separate condensate header is made, that is connected to the common header through a hydraulic gate preventing any transfer between the rows, the relation of the surfaces of the condenser and the partial condenser in each section makes up 5:1, the total heat exchange surface of all the condenser rows is less than that required according to the rated conditions of condensation by 5 to 6%, and the value of the section of the transfer tubes or ducts makes up 9 to 12% of the value of the section of the respective partial condenser.

EFFECT: prevented formation of air locks in vacuum in the device for water vapor condensation, worsening of heat exchange, rise of pressure, acceleration of corrosion, freezing of tubes.

6 dwg

FIELD: water vapor condensation.

SUBSTANCE: devices for water vapor condensation in vacuum formed by a vapor ejector device with the use of air as a cooler, having sections of multirow condensers made in the form of tube bunches, and partial condensers made in the form of tube bunches, and a common condensate header, in each section each row of vapor condensers passing the cooling air, and which are made of equally spaced round-section tube bunches, is connected with the aid of transfer tubes or ducts to its own section of the row, not row installed above the rows of condensers and connected to the vapor ejector device, partial condensers also made of round-section tube bunches and equally spaced. Besides, for each row of condensers and the respective part of the row of partial condensers its own separate condensate header is made, that is connected to the common header through a hydraulic gate preventing any transfer between the rows, the relation of the surfaces of the condenser and the partial condenser in each section makes up 5:1, the total heat exchange surface of all the condenser rows is less than that required according to the rated conditions of condensation by 5 to 6%, and the value of the section of the transfer tubes or ducts makes up 9 to 12% of the value of the section of the respective partial condenser.

EFFECT: prevented formation of air locks in vacuum in the device for water vapor condensation, worsening of heat exchange, rise of pressure, acceleration of corrosion, freezing of tubes.

6 dwg

FIELD: baking industry.

SUBSTANCE: proposed plant includes trap hood and heat exchange cooling unit connected with it and mounted under it; cooling unit includes jacket with pipe line located over its center. Heat exchange cooling unit is used for forced circulation of cold air between jacket and pipe line inside it directing the flow in required direction: in cold season outside air is delivered and at hot season air from floor areas is delivered.

EFFECT: simplified construction; enhanced ecology; saving of water.

1 dwg

FIELD: steam power plants.

SUBSTANCE: the waste steam pipe-line for a steam power plant has several air-cooled condenser members, main pipe-line (10) of waste steam with at a least two tees (6) passing to the respective condenser member, the cross-section of the main waste steam pipe-line (10) past point (7) of connection of tee (6) is reduced in the cross-section characterized by the fact that the main waste steam pipe-line (10) is positioned at angle (W) to the horizontal (H) rising in the direction of flow of waste steam.

EFFECT: improved construction.

FIELD: the invention refers to cooling technique.

SUBSTANCE: the capacitor with air cooling has a air-steam exchanger (3) which has tubes ribbed from outside (2) for partial immediate condensation of steam (1) with outside air (4). The heat exchanger (3) is fed up with steam (1) from the upper distributing chamber (24) up to the lower chamber (25) in which not yet condensed steam (22) and condensate (8) are accumulated. The not yet condensed steam (22) in the air-steam heat exchanger (3) is condensed in the air-steam section of the capacitor with air cooling, in the space fulfilling the function of a mixing capacitor (9) with spraying water from the section (7) of water-air cooling of the capacitor with air cooling from where incondensable gases are also fed. The water (13) heated in the mixing capacitor (9) is cooled in the second time in the water-air heat exchanger (7).

EFFECT: increases safety of operation, controllability, reduces expenditures on creation of the installation.

17 ck, 17 dwg

Condensing unit // 2347995

FIELD: heating.

SUBSTANCE: present invention pertains to devices for air condensation of vapour. The condensing unit has several dome-shaped heat-exchange elements, to which cold air is supplied through ventilators. At the edge of the condensing unit there is an aerodynamic shield. At the edge, there is a wind wall, made from plate elements. The plate elements have several vertically passing hollow chambers. In different sections of the wind wall, an air stream (L) can be applied, creating an aerodynamic shield over the wind wall. The plate elements are trapezoid or wave-like and on one side or both sides, are closed by plates, forming a hollow chamber. Air stream (L) for aerodynamic shielding is partially a separate stream (L1) from peripheral ventilators. The separate stream (L1) can be regulated by a commutative slide valve, located in the cold air stream (K). Air stream (L) is partially formed by extra ventilators. The invention can be used in different areas, without effecting considerable structural changes.

EFFECT: possibility of use in different fields without effecting considerable structural changes.

7 cl, 5 dwg

Heat exchanger // 2361163

FIELD: heating.

SUBSTANCE: invention relates to nuclear power engineering, namely, to heat exchangers incorporated with passive heat removal systems intended for nuclear power plants. The proposed heat exchanger comprises the chamber, hear exchange pipe bundle arranged in the duct receiving cooling medium fed from below, and hear carrier drain circuit. Vapour feed branch pipe is connected to the said chamber, the branch pipe outlet being arranged above the heat exchange pipes ends. Note here that outlets of the said pipes are immersed in condensate.

EFFECT: simple design, higher reliability, lower weight and cost, and reduced metal input.

2 dwg

Condensing works // 2363903

FIELD: heat engineering.

SUBSTANCE: invention relates to units for air vapor condensation. Condensing works with located on bearing structure, located, particularly roof-shaped, heat-exchange elements, to which by means of ventilators it is supplied cooling air, consisting wind wall. Bottom edge of wind wall is shifted outside further, then top edge of wind wall, herewith wind wall by height passes roughly up to top edge of distributive vapor line.

EFFECT: invention provides reduction of negative influence of approaching from one side airflows on located on bearing structure condensing works.

3 dwg

FIELD: oil and gas industry.

SUBSTANCE: steam-gas mixture is supplied to a surface air cooling condenser consisting of two and more sections connected to each other, each of which includes a housing, side walls, upper and lower tube sheets rigidly attached to each other with condensate tubes and side walls, which are parallel located, an upper chamber with a cover plate and interaction holes of inlet and outlet sections, which is separated with a vertical partition wall into inlet and outlet cavities, and a bottom with a condensate outlet branch pipe, and equipped with a branch pipe with an air supply diffuser; at that, the inlet cavity of the section that is the first one in the mixture flow direction is equipped with a supply branch pipe; outlet cavity of the section that is the last in the mixture flow direction is equipped with a non-condensed gas removal branch pipe, and condensate outlet branch pipes are combined by a header with the condensate removal branch pipe.

EFFECT: invention allows enlarging functional capabilities of the condenser and improving reliability and degree of removed non-condensed gas from steam-gas mixture at its condensation.

2 cl, 3 dwg

FIELD: power engineering.

SUBSTANCE: double-stage condenser comprises a vertical header with an upper steam-distributing, middle relief and lower condensate-collecting chambers, heat exchange pipes of the first and second condensation stages, fixed by input and output ends in the walls of the steam-distributing chamber near the relief chamber, and in the walls of the walls of the relief chamber and the condensate-collecting chamber, accordingly. In the relief chamber of the vertical header the output ends of the pipes of the first condensation stage are arranged above the input ends of pipes of the second condensation stage. A circular canopy is fixed to the wall of the relief chamber in a transverse manner, being located below the output ends of pipes of the first condensation stage, but above the input ends of the pipes of the second condensation stage. The canopy has condensate-collecting grooves arranged in plan between input ends of the pipes of the second condensation stage and condensate-draining holes.

EFFECT: reduced capture of the first stage condensate into pipes of the second condensation stage and higher efficiency of condensation at the second condenser stage.

3 cl, 3 dwg

FIELD: heating.

SUBSTANCE: group of inventions relates to a condensation plant with air cooling and may be used for power plants. The condenser comprises a tubular jacket, which has an open upper part and an open lower part, a ring of bundles of tubular panels arranged vertically and at the angle to each other. Each of bundles of the tubes comprises the main condensation area and the secondary condensation area, is adapted for passage of the air flow through it in order to condense liquid in panels and is made so that air flow passes via panels and exits through the upper part of the jacket. Inside the jacket at the level of the soil there is a pipeline for steam supply. The condenser is equipped with a system of removal of non-condensing gases with active or passive devices for control of local flow of removed mixture from non-condensed gases and added steam.

EFFECT: reduced noise level, prime cost and/or energy consumption.

20 cl, 2 dwg

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