RU2527772C1 - Heat-exchanging device - Google Patents

Abstract

FIELD: heating.

SUBSTANCE: in the heat exchanging device the finned heat exchanging tube with the diameter d is made serpentine-shaped with an outer finning diameter D and the thickness of the fins L₁, located at a distance L₂ from each other. The amplitude of the serpentine A on the outer finning diameter is not less than $$A=D\times (2+\frac{1}{\frac{L1+L2}{L1}-1}),$$

the wave period of the serpentine P is not less than $$P=2D\times (1+\frac{1}{\frac{L1+L2}{L1}-1}).$$

EFFECT: intensification of heat exchanging due to turbulence in the flow passing inside the finned serpentine-shaped tubes, and increase in the area of heat exchanging of the device.

23 cl, 8 dwg, 2 tbl

Description

The invention relates to the field of heat engineering, namely to heat exchangers with finned tubes, and can be used in air coolers, heat exchangers, refrigerators, recuperators, furnaces, which are used in various industries.

Known heat exchangers containing a housing, an input and output collector and a bundle of heat exchange direct pipes (A.G. Kasatkin Basic processes and apparatuses of chemical technology. Alliance Publishing House, Moscow, 2008, pp. 323-333). The main disadvantages of these designs is insufficient heat transfer due to the low heat transfer coefficient due to poor turbulization of flows passing both inside the pipes and in the annulus, high material consumption and significant dimensions.

Known heat exchangers containing a housing, input and output headers and a bundle of heat exchange tubes in the form of spatially spiral coils installed in the gaps between the turns of each other (RF patents No. 2152574, F28D 7/02 of 09.16.1999 and No. 2238500, F28D 7 / 02.12.12.2002). The main disadvantages of these designs are the complexity of the manufacture of coils, the formation of tube bundles in the annular space of the heat exchanger, the heat exchange between the media is not intense enough, especially in the annular space, low heat transfer coefficient at the level of 150 kcal / h * m ² ("Heat transfer equipment LLC" ANOD-TC "").

Known heat exchangers containing a housing, input and output manifolds and coil elements from pipes installed in the gaps between the turns of the coil elements (RF patent No. 2451875, F22B 37/00, F28D 7/02 from 10/14/2010). The main disadvantage of this design is the insufficiently intense heat transfer between the media, especially when the heat transfer medium moves outside the coil elements across the axis of the tube bundle and the manufacture of coil tube bundles by embedding one tube bundle in other bundles.

The closest in technical essence and the achieved result to the claimed invention is a heat exchanger with finned heat exchanger tubes, in particular an air-cooled apparatus comprising a housing, inlet and outlet manifolds with input and output devices for hot and cold flows and a bundle of heat-exchanged straight finned tubes (Basics of calculation and design of air-cooled heat exchangers .: Handbook. A.N. Bessonov, G.A. Dreitzer, V. B. Kuntysh et al. St. Petersburg, Nedra, 1996, pp. 89-104). The main disadvantages of this design is the insufficient heat exchange due to weak turbulization of the flow passing inside the straight pipes and low heat transfer coefficient from the wall to the flow inside the pipes, which limits the overall heat transfer coefficient.

The problem to which the claimed invention is directed is to intensify heat transfer in both the tube and annular spaces of the bundles of heat-exchange finned tubes with a simultaneous increase in the specific heat transfer area.

This problem is solved due to the fact that in a heat exchanger with finned heat exchanger tubes, comprising a housing, inlet and outlet manifolds with input and output devices for hot and cold flows, at least one finned heat exchanger tube or a bundle of finned heat exchange tubes, according to the invention, is finned heat exchange tube diameter d is formed with serpentine fins on the outer surface of the serpentine pipe with an outer diameter D and fin thickness L ₁ of ribs disposed on the specific heat mennoy serpentine finned pipe at a distance L ₂ from each other, the amplitude A serpentine heat exchanger finned tube according to the outer diameter fin is at least

$$A=D\cdot (2+\frac{\mathrm{one}}{\frac{L\mathrm{one}+L2}{L\mathrm{one}}-\mathrm{one}})$$

and the period of the serpentine wave P is not less

. $$P=2D\cdot (\mathrm{one}+\frac{\mathrm{one}}{\frac{L\mathrm{one}+L2}{L\mathrm{one}}-\mathrm{one}})$$

.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger tube, which is a ring of thickness L ₁ with an outer diameter D and an inner diameter equal to the outer diameter of the heat exchanger tubes d, located on a serpentine finned heat exchanger tube at a distance L ₂ from each other, which unifies the equipment for the manufacture of fins and reduces the cost of producing a serpentine-shaped finned heat exchanger pipe.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger tube, which is a petal of thickness L ₁ with an outer diameter D and an inner diameter equal to the outer diameter of the heat exchanger tubes d, with a distance between adjacent petals equal to the length of the base of the petal, with a distance L ₂ between the rows of petals, which intensifies the turbulence of flow in the annulus due to the fact that the lobes dissected edge flow in the annulus, providing formation of vortices in it, leading to equalization of temperature fields.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger tube, which is spikes with a thickness L ₁ and a height equal to Dd, with a distance between adjacent spikes L ₁ and a distance L ₂ between the rows of spikes, which simplifies the manufacturing technology of fins and reduces it material consumption.

A heat exchanger with finned heat exchanger tubes can be finned with a serpentine-shaped heat exchanger tube, which is a spiral tape L ₁ thick with a surface described by an Archimedes spiral, with a tape width Dd, with a distance between the turns of the spiral tape L ₂ from each other, which ensures twisting flow in the annulus and increases the speed of this flow, leading to an additional increase in the coefficient of heat transfer to the outer surface of the serpentine-shaped heat exchange Pipes.

A heat exchanger with finned heat exchanger tubes can be finned with a serpentine-shaped heat exchanger pipe, which is an elliptic plate of thickness L ₁ , located relative to the serpentine-shaped heat exchanger pipe with an eccentricity so that the axis of the serpentine-shaped heat exchanger pipe coincides with one of the centers of the elliptical plate with the maximum distance from the outer wall a serpentine-shaped heat exchange tube d to the top of the elliptical plate D, and located on a serpentine a different finned heat-exchange pipe at a distance L ₂ from each other, which allows to increase the surface of the fins and, accordingly, the heat transfer between the tube and annular spaces of the heat exchanger.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger pipe, which is an elliptical plate mounted on a serpentine-shaped heat exchanger pipe so that in the zone of the serpentine crest the maximum distance from the outer wall of the serpentine-shaped heat exchanger pipe to the top of the elliptical plate D is turned to the side of the crest plate D serpentine, and in the zone of the serpentine basin the maximum distance from the outer wall of the serpentine-like heat transfer the pipe to the top of the elliptical plate D is facing the serpentine depression, while maximizing the use of the internal space of the heat exchanger due to the fact that the number of bends of the serpentine-shaped heat exchanger increases, leading to an increase in the heat exchange surface per unit length of the heat exchanger, additional turbulence of the flow in the pipe space and, as a consequence, to increase the heat transfer coefficient.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger tube having a rectangular shape in cross section, which simplifies the formation of fins due to the constant pressure of the roller tooling on the layer of deformable metal deposited on the outer surface of the serpentine heat exchanger tube.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger tube having a trapezoidal cross-section with a wide base at the outer surface of the wall of the heat exchanger tube, which allows increasing the height of the fins with a simultaneous increase in its mechanical strength.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger tube, having in cross section the shape of alternating rectangles of variable cross section with a wide base at the outer surface of the wall of the heat exchanger tube and gradually decreasing with distance from the wall of the heat exchanger tube.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger tube placed on the wall of the heat exchanger pipe parallel to each other when drawing finning on the initially straight finned heat exchanger tube.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger tube placed on the wall of the heat exchanger tube perpendicular to the axis of the heat exchanger tube when applying finning to the initially serpentine-shaped fin heat exchanger tube.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger pipe by welding a fin element to the outer surface of a serpentine-shaped heat exchanger pipe in the case when the fin material and the pipe are homogeneous.

A heat exchanger with finned heat exchanger tubes can be made with ribbing of a serpentine-shaped heat exchanger pipe made by extruding from a layer of a deformable metal deposited on the outer surface of a serpentine-shaped heat exchanger pipe when the pipe is made of bimetal with an external layer of easily deformable metal.

As a deformable metal deposited on the outer surface of the serpentine-shaped heat exchange pipe, aluminum or alloys based on it can be used, which reduces the material consumption of the heat exchanger.

As a deformable metal deposited on the outer surface of a serpentine-shaped heat exchange pipe, copper or alloys based on it can be used, which increases the heat conductivity of the fins and its resistance to aggressive environments.

A heat exchanger with finned heat exchanger tubes can be made by bending a previously manufactured finned direct heat exchanger pipe, which greatly simplifies the manufacturing technology of the heat exchanger.

A heat exchanger with finned heat exchanger tubes can be made by finning a previously bent straight heat exchanger pipe, which allows the formation of original non-standard designs of heat exchangers.

A heat exchanger with finned heat exchanger tubes can be made with a fin serpentine-shaped heat exchanger tube having the shape of a coil with the presence of extended sections and transition zones with a change in the direction of flow in the pipe, which allows the use of such heat exchangers as a structural element of the convection chamber of a tubular furnace or an immersion condenser drawer type refrigerator.

A heat exchanger with finned heat exchanger tubes made in the form of a coil may not have fins in transition zones with a change in the direction of flow in the pipe, which simplifies its use as a structural element of the convection chamber of a tubular furnace.

A heat exchanger with finned heat exchanger tubes made in the form of a coil and not having fins in the transition zones with a change in the direction of flow in the pipe can be carried out with the transition zones removed outside the casing, for example, in a convection chamber of a tubular furnace.

When the flow passes in the annulus of the heat exchanger with finned heat exchanger tubes parallel to the bundle of finned serpentine-shaped heat exchanger tubes, the housing of the heat exchanger can also be serpentine-like, repeating the shape of the bundle of finned serpentine-shaped heat exchanger pipes, which eliminates the presence of zones with no heat transfer between the heat exchanging flows between the heat exchanging flows and increases the space of the heat exchanger, leading to an increase in the coefficient heat transfer in the annulus of the heat exchanger.

When a flow passes in the annulus of a heat exchanger with finned heat exchanger tubes perpendicular to the beam of finned serpentine-shaped heat exchanger tubes, the bundle of finned serpentine-shaped heat exchanger tubes can be placed in the casing in the horizontal plane of the formation of the serpentine, and the casing of the heat exchanger can also be made serpentine-shaped heat exchanger-like serpentine-shaped heat exchanger.

The execution of the beam of heat-exchange finned tubes serpentine with the help of pipe bends in the vertical or horizontal planes allows you to turbulize the flow passing inside the pipe. The serpentine shape of the tubes of the bundle of heat-exchange finned tubes leads to the fact that the speeds of the local stream jets inside the tubes become variable, and in the bending zone of the pipe in the inner section relative to the bend, the local velocities decrease and increase in the outer section, which leads to flow turbulence due to heterogeneity of the speed regime of local jets; then, when the flow passes into the next bending zone, the structure of local jets changes to the opposite.

Turbulization of the flow is a highly effective method of intensifying heat transfer, since it allows for a slight increase in hydraulic resistance to increase the heat transfer coefficient. With an excessive distance between the bends of the pipe (large amplitude of the serpentine wave), the turbulence additionally arising on the bend of the pipe damps and the rest of the pipe section until the next bend will differ little from the straight pipe in the flow structure. Therefore, the amplitude of the serpentine wave of the beam of heat-exchange finned tubes along the tops of the disks A should be as small as the design of the finned serpentine-shaped tube allows, while it cannot be less

$$A=D\times (2+\frac{\mathrm{one}}{\frac{L\mathrm{one}+L2}{L\mathrm{one}}-\mathrm{one}})$$

and the period of the wave P, respectively, should be no less

. $$P=2D\times (\mathrm{one}+\frac{\mathrm{one}}{\frac{L\mathrm{one}+L2}{L\mathrm{one}}-\mathrm{one}})$$

.

When performing a bundle of heat-exchange finned tubes serpentine in addition to turbulence in the flow passing inside the tubes, compared with the straight finned tubes used in the prototype, the length of the finned tubes placed in the same apparatus body increases due to bends, and, accordingly, the heat transfer area increases .

When performing a bundle of heat-exchange finned tubes serpentine in the horizontal plane, it is advisable to make the case of the heat exchanger similarly serpentine in the vertical plane. In this case, voids in the housing are closed and heat transfer is intensified.

The technical result achieved is the intensification of heat transfer due to turbulization of the flow passing inside the heat-exchange finned tubes made serpentine in the vertical or horizontal planes, while the heat exchange area increases in comparison with the prototype using straight finned tubes.

The invention is illustrated by figures 1-8:

the figure 1 shows a bundle of heat-exchange finned tubes made serpentine in the vertical plane;

figure 2 shows a bunch of heat-exchange finned tubes made serpentine in the horizontal plane;

figure 3 shows a structural fragment of a heat-exchange finned tube with a diameter of 25 mm with a fin diameter of 55 mm, a rib thickness of 1 mm and a distance between them of 3.5 mm, made serpentine in the vertical plane;

figure 4 presents a photograph of a pilot industrial heat exchange section with a bundle of heat-exchange finned tubes made serpentine in the horizontal plane;

figure 5 presents a photograph of a fragment of a pilot industrial heat exchange section with a bundle of heat-exchange finned tubes made serpentine in the horizontal plane;

figure 6 shows a fragment of the convection chamber of a tubular furnace with a coil made of heat-exchange finned serpentine-shaped pipes that do not have fins in transition zones;

figure 7 shows a refrigerator with a bundle of heat-exchange finned tubes made serpentine in the horizontal plane (top view and perspective view);

figure 8 shows a refrigerator with a bundle of heat-exchange finned tubes made serpentine in the horizontal plane (top view and perspective view).

In figures 1-2, 6-8: 1 - a bunch of heat-exchange finned serpentine-shaped pipes, 2 - heat-exchange finned serpentine-shaped pipe, 3 - chamber, 4 - inlet fitting, 5 - outlet fitting.

In the figure 3: 1 - heat exchange serpentine-shaped pipe, 2 - ribs.

According to figures 1 and 8, the bundle of heat-exchange finned serpentine-shaped pipes 1 consists of heat-exchange finned tubes 2, made serpentine in the vertical plane, chambers 3 are installed on opposite sides of the serpentine-shaped pipes with an inlet fitting 4 and an outlet fitting 5.

According to figures 2 and 7, the bundle of heat-exchange finned serpentine-shaped pipes 1 consists of heat-exchange finned tubes 2 made serpentine in the horizontal plane, chambers 3 are installed on opposite sides of the serpentine-shaped pipes with an inlet fitting 4 and an outlet fitting 5.

According to figure 3, on the heat-exchange serpentine-like pipe 1, the ribs 2, due to their design features, have different distances between the vertices of the ribs.

Heat exchangers in which a beam of heat exchange serpentine-shaped finned tubes is installed operate as follows.

A bunch of heat-exchange serpentine-shaped finned tubes 1 are installed in the heat-exchange section of a typical air-cooling apparatus, in which there is a fan and a diffuser with a collector for air supply. The casing of the heat exchange section, as shown in figures 4 and 7, is made serpentine in the horizontal plane, repeating the serpentine shape of the finned tubes 2. This design prevents the flow of air through the space formed when installing the finned pipes made serpentine in the horizontal plane. The air flow is directed by the fan through the diffuser to the outer surface of the heat-exchange serpentine-shaped finned tubes 2, passing through the bundle of heat-exchanged finned tubes 1, removes the heat of the cooled medium passing inside the tubes 2, as a result of which the air is heated and removed from the apparatus. The medium to be cooled can be liquids, gases, and condensable vapors, which are fed through the inlet fitting 4 installed in the chamber of the heat exchange section 3 into the bundle 1, consisting of heat-exchange finned serpentine tubes 2. Moving along the internal channels of the tubes 2, the medium is cooled and discharged through the outlet nipple 5. The implementation of the finned tube, in contrast to the prototype, is not straight, but serpentine-shaped leads to an increase in the heat transfer surface due to the elongation of the pipe and additional intensification of heat transfer caused by turbulization her flow of cooled medium. To cool the gas, you can use a bundle of heat-exchange finned tubes made serpentine in both the vertical (figures 2, 8) and in the horizontal plane (figures 1, 7). To cool liquids, it is necessary to use a bundle of heat-exchange finned tubes made serpentine in the horizontal plane to ensure emptying of the pipes when stopping and repairing the air-cooling apparatus. For cooling and condensation of vapors, it is necessary to use a bundle of heat-exchange finned tubes made serpentine in the horizontal plane to prevent the formation of liquid plugs in the places of bending of the pipe and to ensure emptying of the pipes when stopping and repairing the air-cooling apparatus.

When using a bundle of heat-exchange serpentine-shaped finned tubes 1 for heating process streams, for example, in tube furnaces, the bundle is installed in the apparatus body, in which there are inlet and outlet channels for supplying a gaseous coolant. The heat carrier is flue gases generated during the combustion of fuel in power plants (stoves, boilers, gas turbine units, etc.), which enter the apparatus body through the inlet channel and, washing the outer surface of the heat-exchange serpentine finned tubes 2 from all sides, give their the heat of the heated medium passing inside the pipes 2, as a result of which they are cooled and removed from the apparatus through the outlet channel of the apparatus. The heated medium is liquids and gases that are fed through the inlet fitting 4, installed in the chamber of the heat exchange section 3, into the bundle 1, consisting of heat-exchange finned serpentine-shaped pipes 2. Moving along the internal channels of the pipes 2, the heated medium receives heat from the heat carrier, heats up and is removed through the outlet fitting 5. The implementation of the finned tube, in contrast to the prototype, is not straight, but serpentine-shaped leads to an increase in the heat exchange surface due to the elongation of the pipe and additional intensification of heat BMENA caused by agitation of the heated medium flow. To heat the gas, you can use a bundle of heat-exchanging finned tubes made serpentine in both vertical and horizontal planes. To heat liquids, it is necessary to use a beam of heat-exchange finned tubes made serpentine in the horizontal plane to ensure emptying of the pipes when the apparatus is stopped and repaired. Similarly, heat-exchange serpentine-shaped finned tubes 1 are installed instead of the straight sections of the tubular coil in the convection chamber of the heating furnaces, as shown in figure 6.

A bundle of heat-exchange serpentine-shaped finned tubes 1 can also be installed inside the housing of an immersion refrigerator, in which there are fittings for entering and leaving a cooling medium, for example, circulating water. The cooling medium through the inlet fitting enters the body of the immersion refrigerator, washing the outer surface of the heat-exchange serpentine-shaped finned tubes 2 from all sides, removes excess heat from the cooled medium passing inside the tubes 2, and is removed from the apparatus through the outlet fitting. The medium to be cooled can be liquids, gases, and condensable vapors, which are fed through the inlet fitting 4 installed in the chamber of the heat exchange section 3 into the bundle 1, consisting of heat-exchange finned serpentine tubes 2. Moving along the internal channels of the tubes 2, the medium is cooled and discharged through the outlet nipple 5. The implementation of the finned tube, in contrast to the prototype, is not straight, but serpentine-shaped leads to an increase in the heat transfer surface due to the elongation of the pipe and additional intensification of heat transfer caused by turbulization her flow of cooled medium. To cool the gas, you can use a bundle of heat-exchange finned tubes made serpentine in both vertical and horizontal planes. To cool liquids, it is necessary to use a bundle of heat-exchange finned tubes made serpentine in the horizontal plane to ensure emptying of the pipes when stopping and repairing the air-cooling apparatus. For cooling and condensation of vapors, it is necessary to use a bundle of heat-exchange finned tubes made serpentine in the horizontal plane to prevent the formation of liquid plugs in the places of bending of the pipe and to ensure emptying of the pipes when stopping and repairing the air-cooling apparatus.

The figure 3 shows the dimensions of the heat exchange finned tube made serpentine, according to the invention. The finned heat-exchange pipe with a diameter of d = 25 mm is made serpentine with ribbing on the outer surface of the serpentine-shaped pipe with an external finning diameter D = 55 mm and the thickness of the ribs L ₁ = 1 mm located on the heat-exchanged serpentine-shaped finned tube at a distance of L ₂ = 3.5 mm each from a friend, while the amplitude of the serpentine of the heat-exchange finned tube on the outer diameter of the fins is A = 155 mm, according to the invention, this value should be not less than $$A=55\times (2+\frac{\mathrm{one}}{\frac{\mathrm{one}+\mathrm{3,5}}{\mathrm{one}}-\mathrm{one}})=125.7mm$$

and the period of the serpentine wave P = 200 mm, according to the invention, this value should be at least $$P=2D\times (\mathrm{one}+\frac{\mathrm{one}}{\frac{L\mathrm{one}+L2}{L\mathrm{one}}-\mathrm{one}})=2\times 55\times (\mathrm{one}+\frac{\mathrm{one}}{\frac{\mathrm{one}=\mathrm{3,5}}{\mathrm{one}}-\mathrm{one}})=141.4\text{A.}mm$$

A comparison of an air-cooled heat exchanger made according to the invention (Fig. 4) with a known heat exchanger using a straight-welded finned heat exchanger section, confirmed the higher efficiency of the proposed heat exchanger and showed that the water is cooled by 1-4 ° C lower, the temperature of the exhaust air is 5-6 ° C higher, the length of the pipes and the heat exchange surface area are 1.23 times greater than that of the prototype. The test results are presented in tables 1 and 2.

Thus, the implementation of heat-exchange finned tubes serpentine-like leads to the intensification of heat transfer due to turbulence in the flow passing inside the heat-exchange finned tubes and to increase the area of heat exchange of the apparatus.

Claims (23)

1. A heat exchanger with finned heat exchanger tubes, comprising a housing, inlet and outlet manifolds with input and output devices for hot and cold flows, at least one finned heat exchanger tube or a bundle of finned heat exchanger pipes, characterized in that the finned heat exchanger pipe with a diameter of d is made serpentine with fins on the outer surface of the serpentine pipe with an outer diameter D and fin thickness L ₁ of ribs disposed on the heat exchanger finned serpentine tr baa at a distance L ₂ from each other, the amplitude A serpentine heat exchanger finned tube according to the outer diameter fin is at least
$$A=D\times (2+\frac{\mathrm{one}}{\frac{L\mathrm{one}+L2}{L\mathrm{one}}-\mathrm{one}}),$$

serpentine P wave period not less
$$P=2D\times (\mathrm{one}+\frac{\mathrm{one}}{\frac{L\mathrm{one}+L2}{L\mathrm{one}}-\mathrm{one}}).$$

2. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the fins of the serpentine-shaped heat exchanger pipe are rings of thickness L1 with an outer diameter D and an inner diameter equal to the outer diameter of the heat exchanger tubes d located on the serpentine-shaped fin heat exchanger pipe at a distance L ₂ apart. 3. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the fins of a serpentine-shaped heat exchanger tube are lobes of thickness L ₁ with an outer diameter D and an inner diameter equal to the outer diameter of the heat exchanger tubes d, with a distance between adjacent petals equal to a length the base of the petal, the distance L ₂ between the rows of petals. 4. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the fins of a serpentine-shaped heat exchanger pipe are spikes with a thickness L ₁ and a height equal to Dd, with a distance between adjacent spikes L ₁ and a distance L ₂ between the rows of spikes. 5. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the finning of the serpentine-shaped heat exchanger tube is a spiral tape of thickness L ₁ with the surface described by the Archimedes spiral, with a tape width equal to Dd, with a distance between the turns of the spiral tape L ₂ each from friend. 6. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the ribbing of the serpentine-shaped heat exchanger pipe is an elliptic plate of thickness L ₁ located relative to the serpentine-shaped heat exchanger pipe with an eccentricity so that the axis of the serpentine-shaped heat exchanger pipe coincides with one of the centers of the elliptical plate with a maximum distance from the outer wall of the serpentine-shaped heat transfer tube d to the top of the elliptical plate D, and located on the serpentine noobraznoy finned heat exchanger tube ₂ at a distance L from each other. 7. A heat exchanger with finned heat exchanger tubes according to claim 6, characterized in that the fins of the serpentine-shaped heat exchanger pipe are elliptical plates mounted on the serpentine-shaped heat exchanger pipe so that in the zone of the serpentine crest the maximum distance from the outer wall of the serpentine-shaped heat exchanger pipe to the top of the elliptical plate D is facing the side of the serpentine ridge, and in the zone of the serpentine depression, the maximum distance from the outer wall of the serpentine-like heat mennoy pipe to elliptical plate vertex D faces the serpentine depression. 8. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the ribbing of the serpentine-shaped heat exchanger tube in cross section has the shape of a rectangle. 9. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the ribbing of the serpentine-shaped heat exchanger tube in cross section has a trapezoid shape with a wide base at the outer surface of the wall of the heat exchanger tube. 10. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the ribbing of a serpentine-shaped heat exchanger pipe in cross section has the form of alternating rectangles of variable cross section with a wide base at the outer surface of the wall of the heat exchanger pipe and gradually decreasing with distance from the wall of the heat exchanger pipe. 11. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the fins of the serpentine-shaped heat exchanger pipe are arranged parallel to each other on the wall of the heat exchanger pipe. 12. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the fin of a serpentine-shaped heat exchanger pipe is placed on the wall of the heat exchanger pipe perpendicular to the axis of the heat exchanger pipe. 13. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the ribbing of the serpentine-shaped heat exchanger pipe is made by welding a finning element to the outer surface of the serpentine-shaped heat exchanger pipe. 14. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the ribbing of the serpentine-shaped heat exchanger pipe is made by extruding from a layer of a deformable metal deposited on the outer surface of the serpentine-shaped heat exchanger pipe. 15. A heat exchanger with finned heat exchanger tubes according to claim 14, characterized in that aluminum or alloys thereof are used as a deformable metal deposited on the outer surface of the serpentine-shaped heat exchanger pipe. 16. A heat exchanger with finned heat exchanger tubes according to claim 14, characterized in that copper or alloys thereof are used as a deformable metal deposited on the outer surface of the serpentine-shaped heat exchanger pipe. 17. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the finned serpentine-shaped heat exchanger pipe is made by bending a previously made finned straight heat exchanger pipe. 18. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the finned serpentine-shaped heat exchanger pipe is made by finning a previously curved straight heat exchanger pipe. 19. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that the finned serpentine-shaped heat exchanger pipe has the shape of a coil with the presence of extended sections and transition zones with a change in the direction of flow in the pipe. 20. A heat exchanger with finned heat exchanger tubes according to claim 19, characterized in that the finned serpentine-shaped heat exchanger tube in the form of a coil does not have fins in the transition zones with a change in the direction of flow in the pipe. 21. A heat exchanger with finned heat exchanger tubes according to claim 20, characterized in that the finned serpentine-shaped heat exchanger tube in the form of a coil that does not have fins in the transition zones with a change in the direction of flow in the pipe is carried out by the transition zones outside the housing. 22. A heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that when the flow passes in the annulus parallel to the beam of finned serpentine-shaped heat exchange tubes, the body of the heat exchanger is also serpentine-like, repeating the shape of the beam of finned serpentine-shaped heat exchange tubes. 23. The heat exchanger with finned heat exchanger tubes according to claim 1, characterized in that when the flow passes in the annular space perpendicular to the beam of finned serpentine-shaped heat exchanger tubes, a bundle of finned serpentine-shaped heat exchanger tubes is placed in the housing in the horizontal plane of the formation of the serpentine, and the heat exchanger body is also serpentine , repeating the shape of a beam of finned serpentine-shaped heat transfer tubes.

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