Heat exchanger of double-pipe type

FIELD: power industry.

SUBSTANCE: heat exchanger of a double-pipe type includes two pipes located with a gap between them, one of which represents a toroid and the other one - a hollow Moebius band. Besides, longitudinal grooves can be made along Moebius band.

EFFECT: improving operating efficiency of a heat exchanger and reducing its dimensions.

2 cl, 2 dwg

 

The invention relates to energy and can be used in heating systems of thermal power plants.

Known heat exchanger with a complex flow pattern of fluids - shell-and-tube heat exchanger with baffles in the annular space (see Flowers FF heat and mass transfer. - M.: MPEI Publishing house, 2006. - 550 C., figure 20.4).

The closest device to the same destination to the claimed invention on the totality of symptoms is the heat exchanger tube in tube"containing two pipes located with a gap between them, and the connection of the input of the heated liquid is located on the output side of the fluid and the pipe output of a heated fluid is located on the inlet side coolant heat exchanger in the form of a helical spiral (see RF patent №2115876. The heat exchanger pipe in pipe"/ Koptelov A.L. bull. No. 10 from 10.04.2004) and adopted for the prototype.

For reasons that impede the achievement of specified following technical result when using the known heat exchanger, taken as a prototype, is that the heat transfer is not efficient enough, and the production of the heat exchanger is insufficient manufacturability.

The technical result is an increase in heat transfer efficiency, manufacturability of the heat exchanger, HC is the increase of the service life of the heat exchanger, reduction of hydraulic losses.

This technical result in the implementation of the invention is achieved in that the heat exchanger tube in tube" contains two tubes. The peculiarity lies in the fact that one of the pipes is a torus, and the second hollow Mobius strip.

Moreover, the peculiarity is that the hollow Mobius strip made longitudinally of the groove.

The drawings show:

figure 1 - schematic representation of the heat exchanger, figure 2 - image of the heat exchanger in the section.

Information confirming the ability of the invention to provide the above technical result are as follows.

The heat exchanger contains the pipe 1 to enter the coolant pipe 2 to output the carrier pipe 3 to enter the heated medium, the nozzle 4 to output the heated medium pipe 5 having the shape of a torus, tube 6, having the form of a hollow Mobius strip.

The heat exchanger works as follows.

When the vortex motion of the fluid and the heated medium towards each other, the coolant is supplied to the heat exchanger in the pipe 1, is subsequently withdrawn from the socket 2, and the heating medium is introduced into the pipe 3, is subsequently withdrawn from the pipe 4. The movement of the heated medium is a pipe 5 having the shape of a torus, consistently two of the CE is toruses, separated by a pipe 6, having the form of a hollow Mobius strip, which moves the heat to the coolant. Between the pipes 1 and 2 of the input and output of fluid and the pipes 3 and 4 of the input and output of the heated environment provides insulation layer.

The use of this invention will reduce the cost of manufacture and operation of the heat exchanger, due to the significant reduction in the number of materials. High efficiency and compact design allows it to reduce the size of the heat exchanger.

1. The heat exchanger tube in tube"containing two pipes located with a gap between them, characterized in that one of them is a torus, and the second hollow Mobius strip.

2. The heat exchanger according to claim 1, characterized in that the Mobius strip made longitudinally of the groove.



 

Same patents:

FIELD: heating.

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FIELD: power industry.

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1 dwg

FIELD: power engineering.

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4 dwg

FIELD: power industry.

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Heat exchange unit // 2457415

FIELD: power industry.

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3 cl, 3 dwg

FIELD: power engineering.

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FIELD: power engineering.

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EFFECT: unification and reduction of heat exchanger dimensions.

4 cl, 3 dwg

FIELD: power industry.

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5 dwg

Heat exchanger // 2264592

FIELD: power engineering; low- and high-pressure regenerative systems of steam turbines or heat supply systems for water heating due to steam condensation.

SUBSTANCE: proposed heat exchanger has housing accommodating tube bank and main horizontal partitions, water inlet and water-outlet chambers with heated medium inlet and outlet pipes, and steam supply pipe running to steam space of housing; additional horizontal partition is installed in parallel with main one under each or after every one or every two main ones at distance shorter than that between main partitions; main and additional horizontal partitions are placed in casing whose upper part is attached to additional partitions on part of their outer perimeter and bottom part, to main partitions disposed under next additional partitions; the latter are joined through pressurized channels to upper main partitions. In addition, height of pressurized channel interconnecting main and additional partitions may be equal to or shorter than distance between them.

EFFECT: enhanced operating economic efficiency of heater by augmenting heat transfer due to reduction of condensate film thickness in heat-transfer surface tubes.

1 cl, 6 dwg

FIELD: the invention designed for heat exchange and may be used in steam generators and heat-exchange apparatus.

SUBSTANCE: the heat-exchanger has an interior and an exterior bodies, installed between them in a ring-shaped gap along their butt-ends an input and an ring plugs, an input and an output flanges correspondingly with input and output openings, an input and an output openings on the exterior body placed correspondingly near output and input flanges. In the interior body a hollow cowl is installed. It has a body and a butt-end wall with a by-passing opening off the side of the input flange. In the ring-shaped gap an exterior heat-exchange structure is located between the exterior and interior bodies. In the ring-shaped gap an interior heat-exchange structure is installed between the interior body and the cowl. The passing section of the by-passing opening can be changed either with the help of a regulating needle fixed in the cavity of the cowl along its longitudinal axle with the help of a frame with a screw opening and turned with its sharp part in the direction of the by-passing opening of the cowl, or by installation in the by-passing opening of a replacement jet with a calibrated opening.

EFFECT: the invention expands functional possibilities of a regulated heat-exchanger.

2 dwg, 5 cl

Heat-exchanger // 2267070

FIELD: heating engineering, particularly heat-exchanging facilities.

SUBSTANCE: heat exchanger of substantially round cross-section has tube bundle arranged in shell and secured to tube plates. The tube plates are made as flexible corrugated discs with concentric corrugations and have high strain capacity.

EFFECT: increased efficiency of heat-exchanger self-cleaning and operational reliability, as well as improved deformation characteristics of heat-exchanger members and intensified heat-exchange.

13 cl, 11 dwg

FIELD: heat engineering, in particular, in heat-exchange apparatuses of air cooling, in which outdoor air injected by the fan impeller is used as a cooling medium, and, for example, natural gas is used as the cooled gaseous medium.

SUBSTANCE: the air cooling heat-exchange apparatus has at least one vertical shell open from the bottom and from above made of woven material monolithic in cross section in the form of successively joined to one another in the direction from below upwards toroidal, cylindrical or linear surfaces, as well as a heat exchange surface and a fan impeller in each shell. The shell of the heat-exchange apparatus is made of fiberglass material impregnated by epoxy resin, the relation of various components of the shell surfaces and the diameter of the cylindrical surface is selected as follows: h=(1.47...1.49)d; g=(0.58...0.61)d; r=(0.18...0.20)d; a=(0.14...0.16)d; b=(0.55...0.57)d, where: d- the diameter of the cylindrical surface; h - the distance from the beginning of the linear surface to the mounting base; g - the distance from the beginning of the toroidal surface to the mounting base; r - the radius of the toroidal surface; a - the distance from the beginning of the cylindrical surface to the beginning of the linear surface; b - the distance from the end of the cylindrical surface to the beginning of the linear surface. Besides, the heat exchange surface positioned above the shell represents a rectangle in cross section characterized by the following relations: n=(1.1...1.12)d; m=(1.4...1.42)d, where: d - the diameter of the cylindrical surface; n - the smaller side of the rectangle; m - the larger side of the rectangle. The heat exchange surface is also made in the form of staggered horizontal rows of pipes, the distance between the centers of three adjacent pipes of the adjacent rows form an isosceles triangle with a base larger than the lateral sides.

EFFECT: enhanced efficiency of heat exchange and reduced consumption of power.

5 cl, 5 dwg

Heat exchanger // 2272232

FIELD: heat exchange apparatus.

SUBSTANCE: heat exchanger comprises bank of pipes of the oval cross-section which are secured in the pipe desks and mounted inside the casing. The greater axis of the oval is mounted at an angle 3-5 degrees to the direction of the flow in the interpipe space. The pipes are inclined to the direction of the flow at the same angle or at the alternating angles. The oval cross-section of the pipe is shaped without acute corners and can be made in particular of an ellipse. The thickness of the pipes is constant or variable. For the pipe of elliptic cross-section, the thickness of the pipe wall has a minium along the small axis of the ellipse and has a maximum along the large axis of the ellipse.

EFFECT: enhanced efficiency.

7 cl, 5 dwg

FIELD: heat-exchange apparatus.

SUBSTANCE: heat-exchanging section comprises multi-row tube bank, chambers for supplying and discharging product, sides, transverse beams, and distant members interposed between the tube rows. The spacer made of a compressible air-impermeable material is interposed between one of the sides and tube bank.

EFFECT: enhanced reliability.

1 dwg

FIELD: heat-exchange apparatus.

SUBSTANCE: method comprises supplying gas to the pipes of the multi-row heat-exchanging section and supplying air to intertube space transverse to the tube bank by means of a fan. The air is supplied from bottom to top. The temperature of the outer wall of the tubes in the bottom row is measured at the outlet of the tubes. When the temperature of the tubes drops down to the temperature of the air entering the tube bank, the fans are cutoff and they operate in the reverse regime.

EFFECT: improved method.

1 dwg

FIELD: heat-exchange apparatus.

SUBSTANCE: method comprises supplying gas in the pipes of a multi-row one-way pipe bank and supplying air in the interpipe space. The directions of air supply to the first and second pipe bank halves in the direction of gas flow are opposite. The flow rate of the air entering each of the pipe bank halves is controllers synchronously, and the temperature of the gas is leveled with the gas temperature along the rows at the outlet of the pipe bank.

EFFECT: reduced power consumptions .

2 dwg

FIELD: heat-exchange apparatus.

SUBSTANCE: device comprises collectors for supplying and discharging gas and a row of parallel air cooling apparatus that abuts one against the other. Each of the apparatus has heat-exchange section and fan that underlies the heat-exchange section mounted in the collector of the diffuser. The shields that abut against the heat-exchange section faces are mounted throughout of the length of the device from the side of the inlet and outlet collectors.

EFFECT: reduced power consumption.

1 dwg

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