RS20200036A1 - The device for energy exchange between media with improved structure and performance - Google Patents

Abstract

The device for energy exchange between media with improved structure and performance is characterized by the construction of heat exchangers of opposite and cross flow of fluid, made by screwing helical tubes of coils (201, 202, 203, 204, 205, 206, 207, 208, 289, 290), successively, through structural reinforcements (300, 301, 302, 303, 304, 305, 306, 307, 308, 389, 390) which are an integral part of the exchange core (200) and which enable a stepwise arrangement of the coils, and the arrangement of the tubes of each coil exactly in the middle position and the same distance (320) between the pipes of adjacent coils and together are the exchange surface. Structural reinforcements (300,301,302,303,304,305,306,307,308,389,390) are made so that their inner edge (291) and outer edge (292) correspond to the required pitch (600) of the coils, and that their inner edge (291) additionally follows the thread angle of the coil on which they are placed. 292) to follow the thread angle of the next coil.

Description

structure and performance

Technical field to which the invention relates

The invention generally belongs to the field of heat exchangers. According to the International Classification of Patents (IPC Intcl), the subject of the invention is classified and marked with F28, a broader classification, which refers to heat exchange in general.

As the invention is characteristic for its construction, it can also be marked with F28F - structural elements of heat exchange and transfer devices of general application.

Technical problem

The inventors aimed to improve the thermal performance of the heat exchanger core, primarily in such a way that the essential parameters of the working fluids can be easily controlled. Furthermore, by using such an improved heat exchanger core, the inventors have designed a heat exchanger that is simple to manufacture, use and maintain, suitable for application in various commercial and residential spaces, and various branches of industry. Also, the inventors aimed to design a heat exchanger that has a smaller mass compared to existing exchangers of the same power and made of the same material.

State of the art

The inventors reviewed the patent databases and found that there are inventions of heat exchangers that include a structure that has helicoidal tubes and a stepped gap between the tubes and a cross flow of fluid is present, such as EP0351247 (A2) - Recovery of heat from flue gases or US20100096115A1 - Multiple concentric cylindrical cocoiled heat exchanger or else US3403727A - Crossflow countercurrent heat exchanger with inner and outer-tube sections made up of closely packed coaxially nested layers of helicoidally wound tubes

Some other similar inventions such as US4893672A - Counter-flow heat exchanger with helical tube bundle or GB685848 (A) - Improvements relating to the construction of tubular heat exchangers do not include the cross flow of fluid or the stepped distance between the tubes.

None of the exposed patents contain a heat exchanger of opposite and cross flow of fluid, made by screwing helical tubes (coils) into each other through structural reinforcements that are an integral part of the exchanger core and which enable a staggered/zig-zag arrangement of the coils, and the arrangement of the tubes of each coil exactly in the middle position and the same distance between the tubes of the adjacent coils in the entire exchanger core and together they are the exchanger surface. Likewise, none of those patents disclose structural reinforcements that would be made so that their inner and outer edges correspond to the required pitch of the coils and that their inner edge additionally follows the angle of the coil on which they are placed and the outer edge follows the angle of the next coil.

Presentation of the essence of the invention

The essence of the present invention is the structural solution of the opposite and cross-flow heat exchanger, made by screwing helical tubes (coils) successively over the structural reinforcements that are an integral part of the exchanger core and which enable a staggered/zigzag arrangement of the coils, and the arrangement of the tubes of each coil exactly in the middle position and the same distance between the tubes of the adjacent coils in the entire exchanger core and together they are the exchanger surface.

Structural reinforcements are made so that their inner and outer edges correspond to the required pitch of the coils, and that their inner edge additionally follows the angle of the coil on which they are placed, and the outer edge follows the angle of the next coil.

Two fluids can pass through this energy exchange device, the first fluid and the second fluid. Furthermore, this device can contain a central guide with conical attachments and a carrier of structural reinforcements, wherein a basic structural reinforcement is placed on the central guide that has conical attachments on both sides, on which the first helicoidal coil is screwed, and wherein the task of the central guide is to direct the flow of the first fluid towards the coils and to prevent the passage of the first fluid through the central part of the exchange core, and wherein the conical attachments direct the flow of the first fluid closer to the outer walls of the coils through which the other fluid moves. All odd coils (first, third, fifth, ...) are parallel to each other in both transverse and longitudinal planes of the exchange core, while all even coils (second, fourth, sixth, ...) are parallel to each other in both transverse and longitudinal planes of the exchange core. The diameters d of the pipes from which all the coils are made are the same. Each coil in the exchange core has a different diameter with all coils having the same coil pitch, and with each coil having a different thread angle. The structural reinforcements have a sinusoidal or wavy or wavy-zigzag shape, whereby the shape of the structural reinforcements is formed by the bearings through which the coils move when screwing into the exchanger core.

The structural reinforcements contain an inner edge and an outer edge, whereby the same corresponds to the required pitch of the coils and whereby the inner edge additionally follows the angle of the thread of the coil on which they are placed, and the outer edge follows the angle of the next coil, whereby the first coil has the diameter of the first coil, the pitch and the angle of the thread of the first coil. The first structural reinforcement, which is placed on the first coil and follows the step, additionally follows the corner of the first coil with the inner edge, and with the outer edge the corner of the next second coil, and so on until the last twisted coil.

At least two structural reinforcements are placed on each coil in turn, and preferably three or more, distributed at equal intervals along the diameters of the coils, whereby structural reinforcements are placed on each subsequent coil so that they are not in the same plane as the structural reinforcements of the previous coil.

The basic structural reinforcements are attached by welding to the central guide, and each subsequent structural reinforcement to the next twisted coil in turn in the exchange core, whereby the structural reinforcements also enable a staggered or zigzag arrangement of the coils, and the arrangement of the tubes of each coil exactly in the middle position and the same distance between the tubes, transverse to the other fluid, of the adjacent coils in the entire exchange core. This energy exchange device can further contain structural reinforcement supports that have holes drilled in them, so that one end of the structural reinforcement is inserted into each hole, with each of the structural reinforcement supports having as many drilled holes both vertically and horizontally as necessary to place at least two structural reinforcements on each coil.

The advantage of this invention is reflected in simple manufacturing, improved thermal performance, simple control of important parameters of working fluids, easy modularity for application in commercial, residential spaces and in various branches of industry, and easy modularity for lower/higher power.

Description of the draft images

The invention is described in detail on the example of the drawing where:

Figure 1. - illustrates the design solution of the heat exchanger in trimetry

Figure 2 - represents an orthogonal drawing of the subject invention - top view Figure 3 - represents an orthogonal drawing of the subject invention - front view Figure 4 - illustrates - one cross-section with the penultimate structural reinforcement shown

Figure 5 - illustrates a shortened cross-section in trimetry

Figure 6 - illustrates a shortened cross-section with the final structural reinforcement shown

Figure 7 - illustrates a detail of the position of the first and second coils in relation to the first structural reinforcement with the coil angle indicated

Figure 8 - illustrates one selected structural reinforcement

Figure 9 - represents an orthogonal drawing - a cross section of the first example with 8 coils

Figure 10 - represents an orthogonal drawing - front view of the first example with 8 coils

Figure 11. - represents an orthogonal drawing - a cross section of the first example with 8 coils

Figure 12 - illustrates a side view of the first example with 8 coils

Figure 13. - illustrates the support of structural reinforcements - with a cross-section of the first example with 8 coils in trimetry

Figure 14 - illustrates an exchange core with structural reinforcement supports - with a cross-section of the first example with 8 coils in trimetry

Figure 15 - illustrates a partial cross-section of the exchange core with structural reinforcement supports of the first example with 8 coils in trimetry

Figure 16 - illustrates an enlarged cross-sectional view of several coils with the flow of the first fluid drawn and the spacing between the coils

Figure 17 - illustrates an example of exchanger inlet and outlet reduction for standard working fluid connections and application

Figure 18. - illustrates an example of connecting several exchangers of smaller power

LIST OF CALL SIGNS

101- central router

102- conical extension

103 - holes on the casing for the passage of pipes with extensions

104- the shell of the exchange core

105- carrier of structural reinforcements

1050-hole structural reinforcement bracket

-armor

- pipe receiver (collector) with extensions

- vents for the exchange core

- pipe with extensions (at the beginning and end of each coil, the same for all coils) - longitudinal axis

- length of the exchange core

- the diameter of the exchange core

- exchange core

- first coil (helical tube)

- second coil

- third coil

- fourth coil

- fifth coil

- sixth coil

- seventh coil

- eighth coil

- penultimate coil

- last coil

- the inner edge of the structural reinforcement

- the outer edge of the structural reinforcement

- bulge

- recess

- pipe diameter d from which all coils are made

- axial structural reinforcement

- first structural reinforcement

- other structural reinforcement

- third structural reinforcement

- fourth structural reinforcement

- fifth structural reinforcement

- the sixth structural reinforcement

- the seventh structural reinforcement

- eighth structural reinforcement

- penultimate structural reinforcement

- the last structural reinforcement

320- distance between coil tubes transverse to the second fluid

310 - the thickness of the material from which all structural reinforcements are made

311 - the thickness of the pipe wall from which all the coils are made

400-flow of the first fluid

402-flow of another fluid

410 - first fluid inlet

420 - second fluid inlet

411 - first fluid outlet

421 - second fluid outlet

412 - the diameter of the adjusted inlets and outlets of the first fluid for standard connections

422 - the diameter of the adjusted inlets and outlets of the second fluid of the standard connection

430- first point

431- second point

501 - the diameter of the first coil

589- diameter of penultimate coil

590- the diameter of the last coil

600 - coil pitch

601 - thread angle of the first coil

602-thread angle of the second coil

689- thread angle of penultimate coil

690 - thread angle of the last coil

Detailed description of the invention

The device for exchanging energy between the medium with improved structure and performance in one embodiment contains the following parts: casing 104, armor 106, receiver (collector) 107, coils or helical tubes 201,202,203,204,205,206,207,208,289,290, tubes with extensions 110, central guide 101 with conical extensions 102, structural reinforcements 300,301,302,303,304,305,306,307,308,389,390 and structural reinforcement supports 105.

Usually, basic structural reinforcements 300 are placed on the central guide 101, which has conical extensions 102 on both sides, on which the first helical tube (coil) 201 will be screwed. The task of the central guide 101 is to direct the flow of the first fluid 400 towards the coils. 201,202,203,204,205,206,207,208,289,290, and to prevent the passage of the first fluid 400 through the central part of the exchange core 200. The conical extensions 102 direct the flow of the first fluid 400 as close as possible to the outer walls of the coils 201,202,203,204, 205,206,207,208,289,290 through which the second fluid 402 moves. The central guide 101 is it is made of a pipe of a defined diameter to which conical attachments 102 are welded on both sides.

The coils of the exchange core 200 are formed on the tools. The tool can be a roller of a defined diameter and length, made of plastic or metal with channels made on it, which correspond to the required coil and its characteristics, whereby by turning the tool, helicoid tubes (coils) of given parameters are obtained. All odd-numbered coils, eg, 201, 203 through 289, are parallel in both the transverse and longitudinal planes of the exchange core 200. The same is true for even-numbered coils 202, 204, etc. The diameters d of the pipe 295 from which all the coils are made are the same. Each coil 201 to 289, 290 has a different diameter, thus defining the diameter of the first coil 501, the cross penultimate coil 589 and the diameter of the last coil 590. All coils have the same pitch 600 coils, but have a different thread angle, so the first coil has a thread angle of 601, the thread angle of the penultimate coil is 689, while the angle of the last coil is 690, so the tool is different for each coil. Coils can also be made on modified pipe bending tools, for example, three-roller, drum tools and other tools known from the state of the art. The pipes from which the coils are made can be made of copper, aluminum, stainless steel, dual metals, etc. The heat exchanger core 200 can be attached to heating or cooling systems vertically or horizontally.

Structural reinforcements 300,301,302,303,304,305,306,307,308,389,390 enable coils to be screwed into the exchange core 200. Structural reinforcements 300,301,302,303, 304,305,306,307,308,389,390 have a sinusoidal/wavy/wavy-zigzag shape. This form of structural reinforcement enables the bearings in which the coils 201,202,203,204, 205,206,207,208,289,290 move, when screwed into the exchanger core 200. They are placed parallel to the longitudinal axis 112, and the inner edge 291 and the outer edge 292 are made for them to match the required pitch of 600 coils. Considering that the angle of the thread of the coils 601,689,690 is different for each coil 201,202,203,204,205,206,207,208,289,290, at the same time all the structural reinforcements are different, made so that their inner edge 291 additionally follows the angle of the thread of the coil on which they are placed, and the outer edge 292 to follow the angle of the next coil. Thus, the first coil 201 has a diameter of 501, a thread pitch of 600, a pipe diameter d from which the coil 201 is made, a thread angle of 601 and a first structural reinforcement 301, and so on for each subsequent coil successively. Likewise, the first structural reinforcement 301 that is placed on the coil 201 and follows step 600, additionally follows the corner of the coil 601 for the first coil 201 with the inner edge 291, and with the outer edge 292 the corner 602 of the next second coil 202 and so on until the last twisted coil. At least two structural reinforcements 300, 301, 302, 303, 304, 305, 306, 307, 308, 389, 390 are placed on each coil, and preferably three or more, distributed at equal intervals along the diameters of the coils 201, 289, 290. On each subsequent coil, structural reinforcements are placed so that they are not in the same plane as the reinforcements of the previous coil. The basic structural reinforcement 300 is connected by welding to the central guide 101, and each subsequent structural reinforcement 301,302,303,304,305,306,307,308,389,390 to the next twisted coil in order in the exchanger core 200. coils exactly in the middle position and the same distance between the tubes 320 (transverse to the second fluid 402) of the adjacent coils in the entire exchanger core 200. After placing the structural reinforcements on the last twisted coil 289 or 290, the cylindrical shell 104 of the exchanger is placed on them. The basic structural reinforcements 300 and the last structural reinforcements 390, in addition, can be straight, without zigzag waves, and the other mentioned characteristics, and be in line with the structural reinforcement of the next coil, which applies to the basic structural reinforcements 300, or the previous ones, which applies to the last structural reinforcements 390. Also the coils 201,289,290, with their pair of structural reinforcements 301, 389, 390 respectively, can be welded before screwing into the exchanger core 200, and then individually screwed into the exchanger core, successively.

The structural reinforcements ensure the strengthening of the entire exchange core 200, the reduction of vibrations, and the uniform distance between the tubes of the coil 320. They additionally increase the heat exchange surface and together with the coils form the total exchange surface. It is also possible to make other modifications in the way of tying structural reinforcements apart from welding, for example. soldering, gluing, etc.

Structural reinforcements are preferably made of the same type of materials as the coils. Structural reinforcements are made from solid cross-section materials, strips, wires, etc., or from capillary tubes (micro-channel tubes). They are made in their own molds or cut, for example by laser cutting, in order to obtain a specific shape that ensures that the coils are easily screwed, successively, into the exchange core. The thickness 310 of the material from which the structural reinforcements are made is one of the reasons that affects the size (interspace-gap) of the distance 320. Each structural reinforcement has the same thickness 310 of the material from which it is made. By changing the thickness 310 of the material of their manufacture, the size of the gap 320 is reduced or increased, but always ensures a staggered/zigzag arrangement of the coils, and the arrangement of the pipes of each coil exactly in the middle position and the same distance 320 between the pipes of the adjacent coils in the entire exchange core 200.

In order to avoid welding or gluing of structural reinforcements, all structural reinforcements can be inserted into the symmetrical supports 105. In the figures from number 9 to number 15, examples are given for the exchange core 200 with supports 105 with eight coils 201 to 208. All structural reinforcements that are inserted into the supports 105 are made according to the previously described principle. Each of the supports 105 is made of two identical tubes, preferably, or round bars of solid section, which are welded at their centers at right angles. Structural reinforcements are inserted between the supports 105 in holes 1050 drilled on them, in the above example the last structural reinforcement is the eighth structural reinforcement 308. The supports 105 are made of the same type of material as the central guide 101, and the diameter is not greater than the diameter d of the coil tube 295. Each of the supports 105 has as many drilled holes both vertically and horizontally, as it is necessary to place at least two structural reinforcements on each coil. Brackets 105 can be welded to the central router 101 before welding its conical extensions 102. After inserting all the structural reinforcements into the brackets 105, for example in Figures 9 to 11, the coils 201 to 208 are screwed, respectively, forming the exchange core 200. Also, the structural reinforcements can be inserted into the brackets 105 and individually, after twisting each coil, in turn.

Based on the required power of the exchange core 200, the type, speed and temperature of the working fluids 400 and 402, and the required pressure drop of the working fluids, the length 120 and diameter 130 of the exchange core, the pipe diameter d 295 for making the coils, the wall thickness 311 of the pipe from which the coils are made, the diameter of the first coil 501, to the diameter of the last coil 590, are determined. respectively, the number of coils and defines the necessary distance 320. By changing the pitch 600 of the coils and structural reinforcements, while retaining the above-mentioned principle and characteristics of their production, the distance 320 is simply regulated, which enables simple control of the desired fluid pressure drop 400. The length of each individual coil depends on the diameter of each coil, as well as the length 120 of the core itself.

Example 2: An example of an optimized exchanger according to the present invention for a required power of 1850W air-water:

Basic parameters for making the exchangeable

cores First fluid 400: air

0.0934 [kg/s] mass flow rate of the first fluid 400

32.0000 [C] inlet temperature of the first fluid 400

Other fluid 402:

water

4.8300 [lt/min] flow of the second fluid 402

[C] Inlet temperatures of the second fluid

8.0000

fluid 402

The required pressure drop of the first fluid is 80 Pa, and that of the second fluid is 6kPa.

[m] the outer diameter d of the pipes from which they are made

d = 0.0050

coils

[m] The thick wall of the 311 tubes from which they are made

TW = 0.0005

coils

D = 0.2255 [m] Diameter 130 of the exchange core

L = 0.1150 [m] Length 120 of the exchange core

Cn = 22.00 Total number of coils

Weight =4.7 [kg]

exchange made of

copper core

Distance 320 Lg = 0.003m

The following essential parameters were obtained:

79.38 [Pa] First fluid pressure drop 400

5842.15 [Pa] Second fluid pressure drop 402

[C] mean temperature difference through the exchange core 10.0884

200

169.1566 [W/m2*K] mean heat exchange coefficient 1848.7731 [W] Thermal power extracted from the first fluid 400

The inventor has successfully checked all the mentioned structural and functional characteristics of the invention and the given example on the prototype. By changing the mentioned geometric parameters-technical characteristics of the production of the exchange core, it is possible to apply it to residential buildings (lower power) as well as commercial plants (higher power) and various branches of industry for cooling, heating or recovery.

In the given example of an optimized exchange core of small dimensions and light weight, a high heat capacity (1850 W) was achieved, which enables simple and flexible installation in a small space.

In order to additionally facilitate the screwing of the coils into the exchange core 200, each one is cut at its beginning and end in such a way that all the coils of the exchange core come in the same plane normal to the axis 112. At the beginning and end of each coil, tubes 110 with extensions, of the same length, are then placed/mounted on each coil individually. Holes 103 are drilled on the casing 104 for the passage of pipes 110 with extensions that further enter straight into the receiver (collector) 107. The pipes with extensions 110 can be welded, glued, etc., for coils. An armor 106 is placed between the shell 104 of the core and the tube with expansions 110, which prevents the passage of the first fluid 400 outside the exchange core 200. The tubes with expansions 110 are most preferably made of the same material and diameter d of the tube 295 as for the coils, and are expanded at one end where they will be pulled onto the coils, using standard tools for expanding the tubes. On the receiver (collector) 107 there are additionally openings 108 for venting the exchange core 200.

The first fluid 400 moves around the coils, and the second fluid 402 moves through the coils. The inlet 410 of the first fluid 400 in relation to the inlet 420 of the second fluid 402 is located on the opposite side of the exchange core, whereby the fluids move in opposite directions. Thus, the temperature difference in the entire exchange core 200 is large and the heat exchange on the entire device is high. The first fluid 400 additionally moves approximately perpendicular (cross/normal) to the coil tube axis. In this arrangement, the coils greatly obstruct the flow of the first fluid 400, so that there is continuous swirling (turbulence) of the first fluid 400 around the coils. This enhances heat exchange, but also increases the pressure drop of the first fluid 400. Since the coils are staggered (a staggered arrangement of the coils) in the exchanger core by placing them in their seats on the structural reinforcements, the tubes of each coil are exactly in the middle position and the same distance 320 (transverse to the second fluid 402) between the tubes of the adjacent coils, the first fluid 400 is forced to move close to the tube walls coil.

In the staggered order, the pipe of, for example, the fifth coil 205, as shown in Figure 16, is exactly in the middle position between the adjacent pipes of the fourth coil 204 and the sixth coil 206. The flow of the first fluid 400 passing between the fourth coil 204 and the sixth coil 206 directly hits the pipe of the fifth coil 205. The flow of the first fluid 400 passing between the fourth coil 204 and the sixth coil 206 does not release or receive enough heat, because it is located in the middle of the passage between the fourth coil 204 and the sixth coil 206, at the first point 430. But

it further passes close to the tube wall of the fifth coil 205 at another point 431, where much heat is released or received.

Heat transfer can be improved by reducing the distance from the tube walls to the first fluid 400, i.e., by reducing the gap 320. If the gap 320 is very small, the flow of the first fluid 400 is forced to pass very close to the tube walls, and the heat transfer is greater. Basically, the thermal resistance to the flow of the first fluid 400 is proportional to the distance 320 so the heat transfer rate is

proportional to the inverse length of the distance 320 between the coil tubes: Q ∞Lg-1 .

However, if the distance 320 between the coils is too small, the first fluid 400 is forced to pass through narrow passages, so more mechanical work is necessary to overcome the resistance, that is, there is an increase in the pressure drop of the first fluid 400 through the exchange core 200. This is an undesirable effect because part of the pressure is lost. The pressure drop of the first fluid 400 increases proportionally to the inverse cube of the distance 320, ie, ΔPfluid S∞ Lg<- 3>.

The above-described method of making the subject invention achieves the highest heat exchange for a given pressure drop of the first fluid 400. This design creates an axial helicoidal heat exchanger core 200 with counter-current (opposite-direction) and cross-flow fluid, and a staggered arrangement of coils, which is simply made by screwing helical tubes (coils) successively over structural reinforcements, which achieve high thermal performance and simple control of the most important parameters.

An additional advantage of the subject heat exchanger core 200 is the "self-cleaning" mechanism of the interior of the coils. Scale, other deposits and dirt inside the coils cause a localized increase in the speed of the second fluid 402, which increases the "pushing" of the dirt, by the friction of the second fluid 402 against the dirt, and thus the inner surface of the coils "itself" is kept clean.

The diameters 412 of the first fluid inlet 410 and the first fluid outlet 411, as well as the diameter 422 of the second fluid inlet 420 and the second fluid outlet 421 refer to Figure 17, of the exchange core 200 can be reduced or increased for connection to standard connections.

An increase in the required power of the subject invention can also be achieved by connecting smaller power exchange cores 200 made according to the same principle.

In Figure 12, there is an example of connecting several exchanger cores of 200 lower power made according to the present invention to realize one exchanger of higher power. Figure 9 shows the design of the exchange core 200 in section with 8 coils 201,202,203,204,205,06,207,208 so that it is visible that first comes the axial structural reinforcement 300, then the first coil 201, then the first structural reinforcement 301 comes on top of it, and on top of it the second coil 202 which is placed in depressions 294, then on the protrusions 293 of that first structural reinforcement 301 comes the third coil 203, on which comes the third structural reinforcement 303, on which comes the fourth coil 204, which is placed in the depression 294 of that third structural reinforcement 303, then on the protrusions 293 of that third structural reinforcement 303 comes the fifth coil 205, on which comes the fifth structural reinforcement 305, and on it the sixth coil 206, which is placed in the recesses 294, then the seventh coil 207, on which the seventh structural reinforcement 307 comes, and on it the eighth coil 208, which is placed in the recesses 294 of that seventh structural reinforcement 307, and on the eighth coil 208 comes the last eight structural reinforcement 308.

Method of industrial or other application of the invention

The subject invention can be industrially applied in commercial, residential areas and various branches of industry. Figure 11 illustrates one way of applying the invention in the automotive industry on a completed heat exchanger for cooling (intercooler) highly compressed hot air, where its purpose is to lower the air temperature with less pressure loss.

Although the subject invention has been described in the most preferred embodiment, in order to enable a better understanding of the invention, it should be noted that various modifications are possible. The present invention is intended to cover all possible modifications.

Also, any structural improvements or changes that would be within the scope of the presented structural solution and that would be aimed at its functional improvement, are considered to be covered by this application.

Claims (11)

PATENT REQUESTS 1. A device for exchanging energy between a medium with improved structure and performance of opposite and cross-flow fluid characterized by containing coils (201,202,203,204,205,206,207,208,289,290) derived from tubes and structural reinforcements (300,301,302,303,304,305,306,307,308,389,390), where coils (201,202,203,204,205, 206,207,208,289,290) and structural reinforcements (300,301,302,303,304,305,306,307,308,389, 390), form the exchange core (200) and wherein the coils (201,202,203,204,205, 206,207,208,289,290) are successively wound over the structural reinforcements (300,301,302,303, 304,305,306,307,308,389,390) and wherein the structural reinforcements enable stepped/zigzag arrangement of coils (201,202,203,204,205,206,207,208,289,290) and the arrangement of tubes of each coil exactly in the middle position and the same distance between the tubes of adjacent coils in the entire exchange core (200). 2. The energy exchange device according to the 1st patent claim characterized by the fact that the first fluid (400) and the second fluid (402) can pass through it, with the fact that it further contains a central guide (101) with conical extensions (102), a support for structural reinforcements (105) and a basic structural reinforcement (300), whereby the central guide (101) which has conical extensions (102) is placed on both sides structural reinforcement (300) on which the first helicoid coil (201) is screwed and the task of the central guide (101) is to direct the flow of the first fluid (400) towards the coils (201,202,203,204,205,206,207,208,289,290) and to prevent the passage of the first fluid (400) through the central part exchange core (200) and pri where the conical extensions (102) direct the flow of the first fluid (400) as close as possible to the outer walls of the coils (201,202,203,204, 205,206,207,208,289,290) through which the second fluid (402) moves. 3. An energy exchange device according to any preceding claim, characterized in that all odd-numbered coils (201,203,205,207,289) are parallel to each other in the transverse and longitudinal planes of the exchange core (200), and all even-numbered coils (202, 204, 206, 208, 290) are also parallel to each other in transverse and longitudinal planes of the exchange core (200). 4. Device for energy exchange according to any previous patent claim, characterized by the fact that the diameters d of the pipes (295) from which all the coils are made are the same. 5. An energy exchange device according to any preceding patent claim characterized in that each coil (201,202,203,204,205,206,207,208,289,290) in the exchange core (200) has a different diameter (501,589,590) wherein all coils have the same pitch (600) of the coil, and wherein each coil (201,202,203,204,205,206,207,208,289,290) has a different thread angle (601,689,690). 6. Device for energy exchange according to any previous patent claim, characterized in that the structural reinforcements (300,301,302,303,304,305,306,307,308,389,390) have a sinusoidal or wavy or wavy-zigzag shape, wherein the shape of the structural reinforcements is formed by the bearings on which the coils move (201,202,203,204,205,206,207,208,289,290) when screwing into the exchange core (200). 7. The energy exchange device according to the 6th patent claim, characterized in that the structural reinforcements (300,301,302,303,304,305,306,307,308,389,390) contain an inner edge (291) and an outer edge (292), wherein the same corresponds to the required pitch (600) of the coils and wherein the inner edge (291) additionally follows the angle of the thread of the coil (201,202,203,204,205,206,207,208,289,290) on which they are placed, and the outer edge (292) follows the angle of the next coil, whereby the first coil (201) has the diameter of the first coil (501), the pitch of the thread (600) and the angle of the thread of the first coil (601). 8. Device for energy exchange according to the 7th patent claim characterized in that the first structural reinforcement (301) which is placed on the first coil (201) and follows the step (600), additionally follows the corner of the first coil (601) with the inner edge (291), and with the outer edge (292) the corner of the next second coil (602) and so on until the last twisted coil. 9. Device for energy exchange according to any previous patent claim characterized in that at least two structural reinforcements are placed on each coil (201,202,203,204,205,206,207,208,289,290) in turn (300,301,302,303,304,305,306,307,308,389,390) and preferably three or more, distributed at equal intervals according to the diameters of the coils (201,202,203,204,205,206,207,208,289,290), whereby on each subsequent coil place the structural reinforcements so that they are not in the same plane as the structural reinforcements of the previous coil. 10. A device for energy exchange according to any previous patent claim, characterized in that the basic structural reinforcements (300) are connected by welding to the central guide (101), and each subsequent structural reinforcements (300,301,302,303,304, 305,306,307,308,389,390) to the next twisted coil in order in the exchange core (200), where the structural reinforcements simultaneously enable a staggered or zigzag arrangement of the coils, and the arrangement of the pipes of each coil exactly in the middle position and the same distance between the pipes (320), transverse to the second fluid (402), of the adjacent coils in the entire exchange core (200). 11. An energy exchange device according to any previous patent claim characterized in that it further contains supports of structural reinforcements (105) on which holes (1050) are drilled, so that one end of the structural reinforcement is inserted into a single hole (1050), whereby each of the supports of structural reinforcements (105) has as many drilled holes both vertically and horizontally as necessary to place at least two on each coil structural reinforcements.