KR102255358B1 - Heat exchanger - Google Patents

Abstract

The present invention relates to a heat exchanger. According to an embodiment of the present invention, the heat exchanger comprises: an apparatus body; a first tube placed in the apparatus body, and having a first hollow unit; a second tube placed in the first hollow unit of the first tube, and having a second hollow unit; a heat storage material placed in the first hollow unit; a first supply discharge nozzle placed in the apparatus body to supply or discharge a heat transfer medium to a first flow path formed by the outer circumference of the first tube and the inner surface of the apparatus body; a second supply discharge nozzle placed in the apparatus body to supply or discharge the heat transfer medium to a second flow path which is the second hollow unit; a third supply discharge nozzle placed in the apparatus body to supply or discharge the heat transfer medium existing in the first flow path; and a fourth supply discharge nozzle placed in the apparatus body to supply or discharge the heat transfer medium existing in the second flow path. The heat storage material can be provided to receive heat from the heat transfer medium existing in the first flow path or the heat transfer medium existing in the second low path, to store the heat or to discharge the stored heat. The present invention aims to provide a heat exchanger which is able to increase the heat recovery rate of waste heat sources with great changes in temperature and flow rate.

Description

Heat exchanger {HEAT EXCHANGER}

The present invention relates to a heat exchange device capable of heat storage and heat dissipation.

Many waste heat sources are generated in processes that use large amounts of energy, such as iron making, cement, and coal drying.

The waste heat source generated in the process is characterized in that the temperature and flow rate of the heat source change according to the degree of operation of the process.

Therefore, when recovering heat from a waste heat source with a large change in temperature and flow rate, these characteristics of the waste heat source must be considered. When heat recovery is performed from a waste heat source with a general waste heat recovery facility, there is a problem that the heat recovery rate decreases and the operation rate of the facility decreases. have.

In addition, when heat recovery is performed from a waste heat source with a general waste heat recovery facility, a large amount of waste heat source is discarded, and if the high-temperature heat transfer medium is rapidly transferred, the facility suffers thermal shock, which causes frequent facility breakdowns. There is.

KR 20-0475398 Y1 (2014.11.24)

An object of the present invention is to increase the heat recovery rate of a waste heat source having a large temperature and flow rate change.

In addition, it is an object of the present invention to provide a heat exchange device having a large heat transfer area and a high heat transfer speed.

The present invention relates to a heat exchange device.

A heat exchange device according to an embodiment of the present invention includes an apparatus body; and a first tube provided inside the apparatus body and having a first hollow portion; and, provided at the first hollow portion of the first tube. , A second tube having a second hollow part; And, a heat storage material provided in the first hollow part; And, a first provided on the device body, formed by the outer periphery of the first tube and the inner surface of the device body A first supply discharge nozzle for supplying or discharging a heat transfer medium to or from one flow path; and a second supply discharge nozzle provided in the device body and supplying or discharging the heat transfer medium to a second flow path, which is the second hollow part; And, A third supply discharge nozzle provided on the device body and supplying or discharging the heat transfer medium present in the first flow path; A fourth supply discharge nozzle provided on the device body and supplying or discharging the heat transfer medium present in the second flow path; And one or more heat storage material spaces provided on one side of the first tube and connected to the first hollow part to supply the heat storage material to the first hollow part, wherein the heat storage material includes the first It may be provided to receive and store heat from the heat transfer medium existing in the flow path and the heat transfer medium existing in the second flow path, or to discharge the stored heat.

In addition, in the radial cross-section of the first tube, one side of the first tube is in contact with the inner surface, the other side of the second tube at least one first heat transfer promotion pin extending in the outer circumferential direction; further comprising, The first heat transfer promotion pin may extend in the longitudinal direction of the first tube.

In addition, in the radial cross section of the second tube, one side of the second tube is in contact with the outer circumference of the second tube, the other side of the at least one second heat transfer fin extending in the inner surface direction of the first tube; further comprising, The second heat transfer promotion pin may extend in the longitudinal direction of the second tube.

In addition, a plurality of the first heat transfer promotion pins and the second heat transfer promotion pins are provided, and the first heat transfer promotion pins and the second heat transfer promotion pins are, in a radial cross section of the first tube, the first tube It can be arranged alternately in the circumferential direction of.

In addition, a plurality of the first tubes may be provided, and the plurality of first tubes may be spaced apart from each other by at least a first separation distance.

In addition, the first separation distance may be a value of 2 mm or more and 7 mm or less.

In addition, the diameter of the first tube may be a value equal to or greater than 2 times and equal to or less than 10 times the diameter of the second tube.

In addition, the first tube may have a diameter greater than 0 mm and less than 300 mm, and the second tube may have a diameter greater than 0 mm and less than 50 mm.

In addition, a first tube sheet for fixing one side of the first tube in the device body; and a second tube sheet that fixes one side of the second tube in the device body and is located above the first tube sheet ; And a third tube sheet disposed below the first tube sheet in the device body and fixing the other side of the second tube.

In addition, a plurality of guide partitions provided on the device body to exist on the outer periphery of the first tube may be further included, wherein the guide partitions may be stacked at regular intervals apart from each other in the longitudinal direction of the device body.

In addition, it may further include; at least one measuring device insertion tube provided in the device body so that the temperature measuring device and the pressure measuring device are inserted.

In addition, the heat storage material is present in a heat storage material space, which is a space between the first tube sheet and the second tube sheet, and the first tube has an end of the one side open, and the end of the one side is the heat storage material space. The heat storage material is fixed to the first tube sheet so as to be present under the heat storage material space, and may fall into the first hollow portion of the first tube.

In addition, a first gas discharge pipe connected to the heat storage space and through which residual gas is discharged; may be further included.

In addition, a second gas discharge pipe disposed above the second tube sheet in the device body and connected to the device body to discharge residual gas; and disposed under the third tube sheet in the device body, and A drain pipe connected to the device body to discharge the heat transfer medium present in the device body to the outside of the device body; And a drain valve provided in the drain pipe.

In addition, the heat storage material. It may be a latent heat material.

In addition, a plurality of control valves provided in the first supply and discharge nozzle, the second supply and discharge nozzle, the third supply and discharge nozzle, and the fourth supply and discharge nozzle; further comprising, the plurality of control valves, the It may be provided to individually control the flow rates of the first supply and discharge nozzle, the second supply and discharge nozzle, the third supply and discharge nozzle, and the fourth supply and discharge.

In addition, the heat transfer medium existing in the first flow path and the second flow path may be the same or non-identical.

In addition, a plurality of the first tube and the second tube may be provided in the device body, and the heat storage materials present in the plurality of first hollow portions may be the same or non-identical.

According to the present invention, the heat recovery rate of the waste heat source having a large temperature and flow rate change is increased.

In addition, the heat transfer area of the heat exchange device is widened, and the heat transfer speed is increased.

1 schematically shows a heat exchange device according to an embodiment of the present invention.
2 schematically shows a first tube and a second tube of a heat exchange device according to an embodiment of the present invention.
3 schematically shows a heat exchange device according to another embodiment of the present invention.
4 schematically shows a heat exchange device according to another embodiment of the present invention.
5 schematically shows a heat exchange device according to another embodiment of the present invention.
6 schematically shows a heat exchange device according to another embodiment of the present invention.
7 schematically shows a first tube and a second tube of a heat exchange device according to an embodiment of the present invention.
8 shows a change in temperature over time of a typical heat exchange tube.
9 shows the temperature of a typical heat exchange tube over time.
10 is a diagram illustrating a temperature change over time of a second tube of a heat exchange device according to an embodiment of the present invention.
11 is a diagram illustrating temperatures of a first tube and a second tube of a heat exchange device according to an embodiment of the present invention.

In order to aid in understanding the description of the embodiments of the present invention, elements described with the same reference numerals in the accompanying drawings are the same elements, and among the elements that perform the same operation in each embodiment, related elements are indicated by the same or extended numbers. Marked.

In addition, in order to clarify the gist of the present invention, a description of elements and techniques well known by the prior art will be omitted, and hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

However, the spirit of the present invention is not limited to the presented embodiments, and specific components may be added, changed, or deleted by those skilled in the art, but may be proposed in other forms, but this is also included within the scope of the same spirit as the present invention Make it clear.

Hereinafter, the X-axis shown in the accompanying drawings is the radial direction of the device body, and the Y-axis is the longitudinal direction of the device body.

As shown in FIG. 1, the heat exchange device 100 according to an embodiment of the present invention includes a device body 110, a first tube provided inside the device body 110, and having a first hollow part 121 (120), provided in the first hollow portion 121 of the first tube 120, the second tube 130 having a second hollow portion 131, the first hollow portion 121 The provided heat storage material, provided on the device body 110, is connected to the first flow path 120a formed by the outer circumference of the first tube 120 and the inner surface of the device body 110, and the first flow path A first supply discharge nozzle 150 for supplying or discharging a heat transfer medium to (120a), provided in the device body 110, and connected to a second flow path that is the second hollow part 131, the second flow path A second supply and discharge nozzle 160 for supplying or discharging a heat transfer medium to and from the device body 110, and a third supply and discharge nozzle for supplying or discharging the heat transfer medium present in the first flow path 120a. 170 and a fourth supply and discharge nozzle 180 provided in the device body 110 and supplying or discharging the heat transfer medium existing in the second flow path.

The lower end of the first tube 120 of the heat exchange device according to an embodiment of the present invention may be closed.

A plurality of the first tubes 120 of the heat exchange device according to an embodiment of the present invention may be provided. The lower ends of the plurality of first tubes 120 are open, and lower ends of the plurality of first tubes 120 may be connected to each other.

When the heat exchanger according to an embodiment of the present invention performs the first heat exchange process, the first supply and discharge nozzle 150 supplies a heat transfer medium to the first flow path 120a, and the second supply and discharge nozzle 160 A heat transfer medium is supplied to the second flow path, the heat transfer medium existing in the first flow path 120a is discharged through the third supply discharge nozzle 170, and the heat transfer medium existing in the second flow path is a fourth supply discharge nozzle. It can be discharged through 180.

When the heat exchanger according to an embodiment of the present invention performs the second heat exchange process, the third supply and discharge nozzle 170 supplies a heat transfer medium to the first flow path 120a, and the fourth supply and discharge nozzle 180 A heat transfer medium is supplied to the second flow path, the heat transfer medium existing in the first flow path 120a is discharged through the first supply discharge nozzle 150, and the heat transfer medium existing in the second flow path is a second supply discharge nozzle. Can be discharged through 160.

When performing the second heat exchange process, the fourth supply and discharge nozzle 180 may be connected to a second flow path that is the second hollow part 131.

The first heat exchange process may be a heat storage or heat dissipation process, and the second heat exchange process may also be a heat storage or heat dissipation process.

When the first heat exchange process is a heat storage process, the second heat exchange process may be a heat dissipation process, and when the second heat exchange process is a heat storage process, the first heat exchange process may be a heat dissipation process.

The first tube 120 and the second tube 130 are metal pipes and may be made of a material including stainless steel, carbon steel, aluminum, copper, or the like.

The heat transfer medium may be waste heat generated in the process, and the heat transfer medium may be oil, for example, HTF such as therminol-66.

In addition, the heat transfer medium may be water.

In addition, the heat transfer medium may be steam.

The heat transfer media existing in the first flow path 120a and the second flow path may be of the same type or different types.

The first supply and discharge nozzle 150, the second supply and discharge nozzle 160, the third supply and discharge nozzle 170, and the fourth supply and discharge nozzle 180 may be provided with a control valve (V), , The heat exchange device 100 may include a plurality of control valves (V).

The control valve (V) is supplied or discharged to the first supply and discharge nozzle 150, the second supply and discharge nozzle 160, the third supply and discharge nozzle 170 and the fourth supply and discharge nozzle 180 The flow rate can be individually controlled.

FIG. 2 shows a cross section in the radial direction of the device body 110, and as shown in FIG. 2, a heat transfer medium flows through the first flow path 120a and the second flow path, and the heat storage material is provided in the first hollow portion 121.

Then, since the heat storage material present in the first hollow part 121 comes into contact with the first flow path 120a and the second flow path at the same time, the contact area between the heat storage material and the heat transfer medium increases, thereby improving heat exchange efficiency, and the heat transfer speed and heat transfer area. Improves.

In the case of a heat storage process, the heat storage material may receive and store heat from the heat transfer medium existing in the first flow path 120a and the heat transfer medium existing in the second flow path.

It is difficult to directly apply the waste heat source discharged from the process to power generation facilities because the temperature and flow rate are not constant. However, in the present invention, since heat is recovered from a waste heat source by a heat storage material and heats up, heat energy can be efficiently obtained from a heat transfer medium having an uneven temperature and flow rate.

Accordingly, according to the present invention, there is an effect of improving the heat recovery rate and power generation efficiency, and the heat exchange device of the present invention may be used in connection with the ORC power generation facility.

In the case of heat dissipation, the heat storage material may discharge stored heat.

In an embodiment of the present invention, the heat storage material may be a latent heat material, and the heat storage material may be a phase change material (PCM). The phase change material is a material that enables heat storage and use by using the latent heat generated when the phase changes from solid to liquid, from liquid to solid, from liquid to gas, or from gas to liquid.

In an embodiment of the present invention, the heat storage material may be a water mixture, an organic latent heat material, an inorganic nitrate, an inorganic hydroxide salt, an inorganic chloride salt, an inorganic carbonate, or an inorganic fluoride salt.

The use temperature range of the heat storage material is 200℃ or less, water mixture, organic latent heat material may be used, inorganic nitrate may be used at 150℃~350℃, inorganic hydroxide salt may be used at 150℃~450℃, and 350℃~ An inorganic chloride salt may be used at 800°C, an inorganic carbonate may be used at 400°C to 800°C, and an inorganic fluoride salt may be used at 600°C to 1000°C.

The above is shown in [Table 1] below.

Classification of latent heat storage materials Normal operating temperature range Remark Water mixture, organic latent material ~200℃ Polymer, etc. Inorganic nitrate 150℃~350℃ NaNO _3, KNO ₃ ,CaNO ₃ ,KiNO ₃ , mixed salts, etc. Inorganic hydroxide 150℃~450℃ KOH, NaOH, mixed salt, etc. Inorganic chloride salt 350℃~800℃ NaCL, KCL, LiCl, mixed salt, etc. Inorganic carbonate 400℃~800℃ Na ₂ CO ₃ , K ₂ CO ₃ , mixed salt, etc. Inorganic fluoride salt 600℃~1000℃ LiF, mixed salt, etc.

[Table 1] Range of operating temperature by classification of latent heat storage material

In this way, a heat storage material is provided as a PCM, and a first tube (120 in FIG. 1) and a second tube (130 in FIG. 1) are provided to ), and the PCM is provided in the first hollow part (121 in FIG. 1), as shown in [Table 2] below, the volume inside the device body 110 is 58.5, the first tube 120, and The second tube 130 has a ratio of 11.3 and a heat transfer medium (HTF) of 30.2.

According to this, since it is possible to increase the ratio of the heat storage material, that is, PCM inside the device body (110 in FIG. 1), the heat storage capacity is increased and the heat transfer speed is improved.

PCM 58.5 1st and 2nd tube 11.3 Heat transfer medium (HTF) 30.2

[Table 2] Device body internal volume ratio

On the other hand, in the heat exchange device according to an embodiment of the present invention, one side of the first tube 120 is in contact with the inner surface of the first tube 120 and the other side is the outer periphery of the second tube 130. At least one first heat transfer promotion pin 122 extending in the direction may be further included. In addition, the first heat transfer promotion pin may extend in the longitudinal direction of the first tube 120.

In addition, the heat exchange device according to an embodiment has one side in contact with the outer periphery of the second tube 130 and the other side toward the inner surface of the first tube 120 in the radial cross-section of the second tube 130. It may further include at least one extended second heat transfer promotion pin 132. In addition, the second heat transfer promotion pin may extend in the longitudinal direction of the second tube 130.

In addition, in an embodiment, the other end of the first heat transfer promotion pin 122 may contact the outer periphery of the second tube 130.

In addition, in an embodiment, the other end of the second heat transfer promotion pin 132 may contact the inner surface of the first tube 120.

The first heat transfer promotion pin 122 and the second heat transfer promotion pin 132 may be made of a material including stainless steel, carbon steel, aluminum, copper, etc., like the first tube 120 and the second tube 130. have.

The first heat transfer promotion pin 122 and the second heat transfer promotion pin 132 may serve as heating pins that transfer heat to the heat storage material during the heat storage process.

The first heat transfer promotion fins 122 and the second heat transfer promotion fins 132 may serve as cooling fins that take away heat from the heat storage material during a heat dissipation process.

The first heat transfer promotion pin 122 and the second heat transfer promotion pin 132 contact the first tube 120 and the second tube 130, respectively, and extend in the length direction of the tube to help natural convection, and to transfer heat. It helps heat exchange between HTF, a medium, and PCM, a heat storage material, and expands the heat transfer area.

The presence or number of the first heat transfer promotion fins 122 and the second heat transfer promotion pins 132 may be selected and applied according to the specifications of the heat exchange device.

In an embodiment of the present invention, a plurality of the first heat transfer promotion pin and the second heat transfer promotion pin may be provided, and the first heat transfer promotion pin and the second heat transfer promotion pin are In the radial cross section, they may be alternately arranged in the circumferential direction of the first tube 120.

In addition, in an embodiment, the first tube 120 may be provided in a bundle. That is, a plurality of first tubes 120 may be provided inside the device body 110, and the second tube 130 is accommodated in the first tube 120 as described above. The number of applications of the first tube 120 may be selected and applied according to the required specifications of the heat exchange device.

In an embodiment, the type of the heat storage material present in the first hollow part 121 may be the same or may be different.

In one embodiment, the plurality of first tubes 120 may be arranged in a triangular arrangement or a square arrangement in the device body 110.

In one embodiment, the arrangement of the plurality of first tubes 120 may take a direction in which the fruit is input from the device body 110 and an inline type or a staggered type. 1 The tube 120 may take an inline type or a staggered type as a method of contacting the heat storage material with the device body 110.

As shown in FIG. 3, the heat exchange device 100 according to another embodiment of the present invention includes a first tube sheet 111 for fixing one side of the first tube 120 in the device body 110, and the device. In the body 110, the second tube sheet 112 and the device body 110 are fixed to one side of the second tube 130, and are located above the first tube sheet 111 in the Y-axis direction. A third tube sheet 113 disposed below the first tube sheet 111 and fixing the other side of the second tube 130 may be further included.

And, as shown in Figure 4, the heat exchange device according to an embodiment of the present invention may further include a plurality of guide partitions 114 provided on the device body 110 to exist on the outer periphery of the first tube 120. have.

The guide partitions 114 may be stacked at regular intervals apart from each other in the longitudinal direction of the device body 110, that is, in the Y-axis direction, and may be disposed to be displaced from each other in the Y-axis direction.

The guide bulkhead serves to guide the flow path of the heat transfer medium, that is, the HTF flowing through the first flow path 120a, and the HTF flowing into the first supply and discharge nozzle 150 goes to the third supply and discharge nozzle 170 It allows heat exchange in many areas with the heat storage material, that is, PCM.

In addition, the device body 110 according to an embodiment of the present invention may have an extended area 119 on its outer periphery.

The extended area 119 is provided to cope with the volume change of the device body 110 due to heat, and serves to respond to heat contraction and thermal expansion of the device body 110.

As shown in FIG. 5, in the heat exchange apparatus according to an embodiment of the present invention, the heat storage material may be present in a heat storage space 115 that is a space between the first tube sheet 111 and the second tube sheet 112. .

In addition, the first tube 120 may be connected to the heat storage space by opening an end portion 123 of one side, that is, a region fixed to the first tube sheet 111.

Accordingly, the first tube 120 may be fixed to the first tube sheet 111 so that the end 123 of the one side is present under the heat storage space.

Accordingly, the heat storage material existing in the heat storage material space may fall into the first hollow portion 121 of the first tube 120.

Specifically, in the heat storage material inside the first hollow part 121, that is, the PCM, the level of the inside of the first hollow part 121 changes due to the occurrence or filling of void spaces between particles according to the phase change, or the change in the shaft rate and density of the heat storage material. Can occur.

In this case, since the heat storage material existing in the heat storage material space falls into the first hollow part 121 and can automatically fill the first hollow part 121, the heat storage capacity is improved and the heat transfer area is increased. I can.

In an embodiment, the heat storage space 115 may be formed as a set of a plurality of spaces, and the plurality of spaces may be separated from each other.

Different types of heat storage materials may be filled in the separated plurality of spaces.

As shown in FIG. 6, the heat exchange device according to another embodiment of the present invention may include a first gas discharge pipe 116 connected to the heat storage space and through which residual gas is discharged.

In addition, in an embodiment, a second gas discharge pipe 117 disposed above the second tube sheet 112 in the device body 110 and connected to the device body 110 to discharge residual gas, the device In the body 110, the heat transfer medium, that is, the HTF, which is disposed under the third tube sheet 113, is connected to the device body 110, and is present in the device body 110, It may further include a drain pipe 118 discharged to the outside of the drain pipe and a drain valve 118a provided in the drain pipe.

Accordingly, the pressure inside the device body 110 can be kept constant, and the heat transfer medium after heat exchange can be discharged to the outside of the device body 110.

In addition, the device body 110 may be provided with at least one measuring device insertion pipe 190 provided to insert a temperature measuring device and a pressure measuring device.

The measuring device insertion pipe 190 may be provided on the top and side of the device body 110, and a thermometer and a pressure gauge are inserted to measure the temperature and pressure inside the device body 110.

The location where the measuring device insertion pipe 190 is provided is a matter that can be appropriately selected and applied according to heat exchange characteristics or the like.

As shown in FIG. 7, since a plurality of first tubes 120 are provided, the plurality of first tubes 120 may be spaced _{apart from each other by a first separation distance L 1 within the device body 110.} The first separation distance L ₁ may be any one of a range of 2 mm or more and 7 mm or less.

In addition, in an embodiment, the diameter of the first tube 120 may be a value equal to or more than 2 times and equal to or less than 10 times the diameter of the second tube 130.

In addition, in an embodiment, the first tube 120 may have a diameter of more than 0 mm and less than 300 mm, and the second tube 130 may have a diameter of more than 0 mm and less than 50 mm.

According to the present invention as described above, more than 50% of the volume of the device body 110 can be filled with heat storage material, the heat transfer distance can be made uniform, and the heat transfer area is about 20% or more wider than the heat transfer area of a conventional heat exchange device. It is possible to implement a heat exchange device having a.

Meanwhile, FIG. 8 shows a heat exchange tube 10 of a conventional heat exchange device. In a typical heat exchange tube 10, a section T in which the temperature rises rapidly appears in about 250 seconds.

In addition, looking at the temperature of the heat exchange tube 10 shown in FIG. 9, the temperature from 300 seconds to the center of the heat exchange tube 10 starts to rise.

In contrast, FIG. 10 shows the first tube 120 of the heat exchange device according to the present invention, and the length of the first tube 120 is 2000 mm, the diameter is 89.1 mm, and the thickness is 3t.

Referring to FIG. 10, it can be seen that the section T in which the temperature of the first tube 120 rapidly rises appears in about 100 seconds.

This is because natural convection is actively generated by the first heat transfer promotion pin (122 in Fig. 2) and the second heat transfer promotion pin (132 in Fig. 2), so that the section in which the temperature rises is advanced, and in addition, the first tube and the second tube The section in which the temperature rises is advanced also by the arrangement relationship of (130 in Fig. 7) and the arrangement relationship of the heat transfer medium and heat storage material.

Referring to FIG. 11, the temperature change of the first tube 120 and the second tube 130 can be seen, but it can be seen that the temperature of the space in which the heat storage material is present increases actively after 100 seconds.

Accordingly, according to the present invention, natural convection becomes active, the heat transfer speed is increased, and the heat transfer area is widened.

The matters described above are described in relation to one embodiment of the present invention, and the scope of the present invention is not limited thereto, and various modifications and variations are possible within the scope not departing from the technical spirit of the present invention described in the claims. This will be apparent to those of ordinary skill in the art.

110: device body 120: first tube
130: second tube 150: first supply discharge nozzle
160: second supply and discharge nozzle 170: third supply and discharge nozzle
180: fourth supply discharge nozzle 190: heat storage device insertion pipe

Claims (18)

Device body;
A first tube provided inside the device body and having a first hollow portion;
A second tube provided in the first hollow portion of the first tube and having a second hollow portion;
A heat storage material provided in the first hollow portion;
A first supply discharge nozzle provided on the device body and supplying or discharging a heat transfer medium to a first flow path formed by an outer periphery of the first tube and an inner surface of the device body;
A second supply discharge nozzle provided on the device body and supplying or discharging the heat transfer medium to a second flow path that is the second hollow part;
A third supply discharge nozzle provided on the device body and supplying or discharging the heat transfer medium present in the first flow path;
A fourth supply discharge nozzle provided on the device body and supplying or discharging the heat transfer medium present in the second flow path; And
It is provided on one side of the first tube and includes at least one heat storage material space connected to the first hollow part to supply the heat storage material to the first hollow part,
The heat storage material,
Stored in the first hollow part and the heat storage space, provided to receive heat from the heat transfer medium existing in the first flow path and the heat transfer medium existing in the second flow path to store or discharge the stored heat. Heat exchanger.
The method of claim 1,
In the radial cross-section of the first tube, one side of the first tube in contact with the inner surface, the other side of the second tube at least one first heat transfer promotion pin extending in the outer circumferential direction; further comprises,
The first heat transfer promotion pin,
A heat exchange device extending in the longitudinal direction of the first tube.
Device body;
A first tube provided inside the device body and having a first hollow portion;
A second tube provided in the first hollow portion of the first tube and having a second hollow portion;
A heat storage material provided in the first hollow portion;
A first supply discharge nozzle provided on the device body and supplying or discharging a heat transfer medium to a first flow path formed by an outer periphery of the first tube and an inner surface of the device body;
A second supply discharge nozzle provided on the device body and supplying or discharging the heat transfer medium to a second flow path that is the second hollow part;
A third supply discharge nozzle provided on the device body and supplying or discharging the heat transfer medium present in the first flow path; And
A fourth supply discharge nozzle provided on the device body and supplying or discharging the heat transfer medium present in the second flow path; and
The heat storage material is provided to receive heat from the heat transfer medium present in the first flow path and the heat transfer medium present in the second flow path and store or discharge the stored heat,
In the radial cross-section of the first tube, one side of the first tube in contact with the inner surface, the other side of the second tube at least one first heat transfer promotion pin extending in the outer circumferential direction; further comprises,
The first heat transfer promotion pin,
A heat exchange device extending in the longitudinal direction of the first tube.
The method according to claim 2 or 3,
In the radial cross-section of the second tube, one side contacts the outer periphery of the second tube, the other side at least one second heat transfer promotion pin extending in the inner surface direction of the first tube; further comprising,
The second heat transfer promotion pin,
A heat exchange device extending in the longitudinal direction of the second tube.
The method of claim 4,
A plurality of the first heat transfer promotion pin and the second heat transfer promotion pin are provided,
The first heat transfer promotion pin and the second heat transfer promotion pin,
Heat exchangers alternately arranged in a radial cross section of the first tube in a circumferential direction of the first tube.
The method of claim 5,
The first tube is provided with a plurality,
The plurality of first tubes are spaced apart from each other by at least a first separation distance,
The first separation distance is,
Heat exchanger with a value of 2mm or more and 7mm or less.
The method of claim 6,
The diameter of the first tube is,
A heat exchange device having a value equal to or greater than 2 times and less than 10 times the diameter of the second tube.
The method of claim 7,
The diameter of the first tube is more than 0mm and less than 300mm,
A heat exchange device having a diameter of the second tube exceeding 0mm and not exceeding 50mm.
The method of claim 1,
A first tube sheet fixing one side of the first tube in the device body;
A second tube sheet that fixes one side of the second tube in the device body and is located above the first tube sheet; And
A third tube sheet disposed under the first tube sheet in the device body and fixing the other side of the second tube;
Heat exchanger device further comprising a.
The method according to claim 1 or 3,
Further comprising a; a plurality of guide partitions provided on the device body to exist on the outer periphery of the first tube,
The guide bulkhead,
Heat exchangers stacked at regular intervals apart from each other in the longitudinal direction of the device body.
The method according to claim 1 or 3,
At least one measuring device insertion tube provided on the device body so that a temperature measuring device and a pressure measuring device are inserted;
Heat exchanger device further comprising a.
The method of claim 9,
The heat storage space is provided between the first tube sheet and the second tube sheet,
The first tube,
The end of the one side is open, the end of the one side is fixed to the first tube sheet such that it exists in the lower portion of the heat storage space,
A heat exchange device in which the heat storage material present in the heat storage material space falls into the first hollow portion of the first tube.
The method of claim 12,
A first gas discharge pipe connected to the heat storage space and through which residual gas is discharged;
Heat exchanger device further comprising a.
The method of claim 13,
A second gas discharge pipe disposed above the second tube sheet in the device body and connected to the device body to discharge residual gas;
A drain pipe disposed under the third tube sheet in the device body and connected to the device body to discharge the heat transfer medium present in the device body to the outside of the device body; And
A drain valve provided in the drain pipe;
Heat exchanger device further comprising a.
The method of claim 9,
The heat storage material is.
Heat exchanger as latent heat material.
The method according to claim 1 or 3,
A plurality of control valves provided in the first supply and discharge nozzle, the second supply and discharge nozzle, the third supply and discharge nozzle, and the fourth supply and discharge nozzle; and
The plurality of control valves,
A heat exchange device provided to individually control the flow rates of the first supply and discharge nozzle, the second supply and discharge nozzle, the third supply and discharge nozzle, and the fourth supply and discharge nozzle.
The method according to claim 1 or 3,
A heat exchange device in which the heat transfer medium existing in the first flow path and the second flow path is the same or non-identical.
The method according to claim 1 or 3,
The first tube and the second tube are provided with a plurality of the device body,
The heat storage material present in the plurality of first hollow portions is the same or non-identical heat exchange device.

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