JP6959853B2 - Heat exchanger - Google Patents

Description

The technology disclosed herein relates to heat exchangers.

Conventionally, heat exchangers that recover steam and exchange heat have been known. For example, Patent Document 1 includes a container into which steam flows and a heat exchange unit provided in the container.

Japanese Unexamined Patent Publication No. 2010-117106

By the way, in such a heat exchanger, air may flow into the container together with steam. In that case, heat is recovered from both air and steam. At that time, of course, high heat exchange efficiency is required.

The technique disclosed herein has been made in view of this point, and the purpose thereof is to improve the heat exchange efficiency when recovering heat from steam-mixed air.

The heat exchanger disclosed here is provided with an inflow section through which air mixed with steam flows in, and separates and stores water generated by the condensation of steam and air from which at least a part of steam has been removed. The injection unit includes a container, a first heat exchange unit that exchanges heat with the separated water, a second heat exchange unit that exchanges heat with the separated air, and an injection unit that injects water into the container. Condenses the steam contained in the air by injecting water from the inflow portion into the steam-mixed air flowing into the container.

According to the heat exchanger disclosed here, it is possible to increase the heat exchange efficiency when recovering heat from the air mixed with steam.

FIG. 1 is a schematic vertical sectional view of the heat exchanger according to the first embodiment. FIG. 2 is a schematic view showing the configuration of the heat exchanger according to the second embodiment.

Hereinafter, exemplary embodiments will be described in detail with reference to the drawings.

<< Embodiment 1 >>
FIG. 1 is a schematic vertical sectional view of the heat exchanger 100 according to the first embodiment.

The heat exchanger 100 includes a container 1 provided with an inflow section 31 into which air mixed with steam flows, a heat exchange section 4 that exchanges heat with water and air, and an injection section 5 that injects water into the container 1. I have. The heat exchanger 100 separates the steam-mixed air flowing into the container 1 into air and condensed water (drain), and recovers heat from the air and water.

The container 1 has an introduction pipe 3 provided with an inflow portion 31. The container 1 is formed in a substantially cylindrical shape extending in a predetermined X-axis direction. The lower space 21 of the container 1 stores water generated by the condensation of steam. The upper space 22 of the container 1 stores air from which at least a part of steam has been removed. Hereinafter, the lower space 21 is referred to as a water storage unit 21, and the upper space 22 is also referred to as an air storage unit 22.

The introduction pipe 3 is formed in a substantially cylindrical shape extending in the X-axis direction through the ceiling 23 of the container 1. An inflow portion 31 is provided in a portion of the introduction pipe 3 exposed to the outside of the container 1. An inflow pipe 32 through which air mixed with steam flows is connected to the inflow portion 31. At the downstream end of the introduction pipe 3, an opening 33 is provided to communicate the internal space of the introduction pipe 3 and the internal space of the container 1. The opening 33 is arranged in the air storage unit 22. That is, the opening 33 communicates the air storage portion 22 with the internal space of the introduction pipe 3.

A water discharge pipe 15 for discharging the water accumulated in the water storage unit 21 is connected to the bottom 24 of the container 1. Specifically, the water discharge pipe 15 branches from the supply pipe 51, which will be described later. The water discharge pipe 15 extends upward from the bottom 24 and bends sideways at a predetermined height position. The portion of the water discharge pipe 15 extending laterally is the highest position. In the water storage section 21, the amount of drain exceeding the highest position of the water discharge pipe 15 is discharged through the water discharge pipe 15. That is, the boundary between the water storage unit 21 and the air storage unit 22 is determined by the highest position of the water discharge pipe 15.

An outflow portion 16 through which the air accumulated in the air storage portion 22 flows out is provided in the upper part of the container 1. An outflow pipe 17 through which air flows is connected to the outflow portion 16.

The heat exchange unit 4 is formed of a heat transfer tube through which water circulates and exchanges heat with steam. The heat exchange unit 4 is formed in a coil shape that revolves around the X-axis as an axis. The relatively lower portion of the heat exchange unit 4 is immersed in the water storage unit 21, and is referred to as the first heat exchange unit 4A. On the other hand, a relatively upper portion of the heat exchange unit 4 is located in the air storage unit 22, and is referred to as a second heat exchange unit 4B. In this example, the first heat exchange section 4A and the second heat exchange section 4B are formed by one heat transfer tube and are continuously configured. A water supply pipe 41 is connected to the lower end of the heat exchange unit 4, and a water discharge pipe 42 is connected to the upper end of the heat exchange unit 4. The water supplied from the water supply pipe 41 circulates inside the heat exchange unit 4 and is discharged from the water discharge pipe 42. The first heat exchange unit 4A exchanges heat with the water in the water storage unit 21, and the second heat exchange unit 4B exchanges heat with the air in the air storage unit 22. While the temperature of the water supplied from the water supply pipe 41 is relatively low, the temperature of the water discharged from the water discharge pipe 42 is relatively high.

The injection unit 5 is formed by a nozzle. The downstream end of the supply pipe 51 is connected to the injection unit 5. The upstream end of the supply pipe 51 is connected to the bottom 24 of the container 1. The supply pipe 51 is provided with an electric pump 52. The electric pump 52 is provided in a portion of the supply pipe 51 on the downstream side of the branch portion of the water discharge pipe 15. The water of the water storage unit 21 of the container 1 is supplied to the injection unit 5 via the supply pipe 51. The injection unit 5 is provided in the introduction pipe 3. More specifically, the injection unit 5 is arranged in the vicinity of the inflow unit 31. The injection unit 5 injects water toward the downstream side of the introduction pipe 3 along the axis of the introduction pipe 3, that is, the X axis. The injection unit 5 generates a suction force for sucking air mixed with steam from the inflow unit 31 by injecting water. In addition, the injection unit 5 condenses the steam contained in the air by injecting water into the steam-mixed air flowing in from the inflow unit 31.

Subsequently, the operation of the heat exchanger 100 configured in this way will be described.

The water supplied from the water supply pipe 41 to the heat exchange unit 4 circulates in the order of the first heat exchange unit 4A and the second heat exchange unit 4B, and is discharged from the water discharge pipe 42.

On the other hand, the steam-mixed air flowing through the inflow pipe 32 flows into the introduction pipe 3 from the inflow portion 31. At this time, the injection unit 5 injects the water supplied from the water storage unit 21 toward the downstream side of the introduction pipe 3 along the axis of the introduction pipe 3. A suction force is generated by the injection of water from the injection unit 5, and the inflow of steam-mixed air from the inflow unit 31 is promoted. The steam-mixed air that has flowed into the introduction pipe 3 rides on the flow of water injected from the injection unit 5 and circulates in the introduction pipe 3 to the downstream side. At this time, since the water from the injection unit 5 is sprayed on the air mixed with steam, the steam contained in the air is condensed. The water generated by the condensation drops downward from the introduction pipe 3 and accumulates in the water storage portion 21 of the container 1. On the other hand, the air from which at least a part of the steam has been removed flows into the internal space of the container 1 through the opening 33 of the introduction pipe 3. Since the opening 33 is located in the air storage unit 22, air flows into the air storage unit 22 through the opening 33 without entering the water of the water storage unit 21. In this way, the steam-mixed air flowing into the container 1 is separated into water and air, and the water is stored in the water storage unit 21 and the air is stored in the air storage unit 22.

The water stored in the water storage unit 21 exchanges heat with the first heat exchange unit 4A. The heat of the water in the water storage unit 21 is recovered by the water flowing through the first heat exchange unit 4A. Further, the air stored in the air storage unit 22 exchanges heat with the second heat exchange unit 4B. The heat of the air in the air storage unit 22 is recovered by the water flowing through the second heat exchange unit 4B. In this way, the water flowing through the heat exchange unit 4 recovers heat in order from the water in the water storage unit 21 and the air in the air storage unit 22, and finally becomes hot water and is discharged from the water discharge pipe 42. ..

When the air in the air storage unit 22 contains steam or water droplets, the air comes into contact with the second heat exchange unit 4B, so that the steam is condensed or the water droplets are in the second heat exchange unit 4B. Adheres to and dehumidifies the air.

As the amount of water stored in the water storage unit 21 increases, the water level of the water storage unit 21 may eventually exceed the upper limit of the water storage unit 21. The amount of water exceeding the upper limit is discharged through the water discharge pipe 15. A part of the water stored in the water storage unit 21 is supplied to the injection unit 5 via the supply pipe 51. The water injected from the injection unit 5 passes through the introduction pipe 3 and is stored in the water storage unit 21 again.

A part of the air stored in the air storage unit 22 is pushed out from the outflow unit 16 so as to be pushed out from the introduction pipe 3 to the air newly flowing into the air storage unit 22.

In this way, the steam-mixed air flowing from the inflow section 31 into the container 1 is condensed with the steam in the air by spraying the water from the injection section 5. This separates air and water. The heat transfer coefficient between water and the heat exchange unit 4 is larger than the heat transfer coefficient between steam and the heat exchange unit 4. Therefore, the amount of heat recovered from the steam can be increased by condensing the steam and then exchanging heat with the heat exchange unit 4.

As described above, the heat exchanger 100 is provided with the inflow portion 31 into which the air mixed with steam flows in, and separates the water generated by the condensation of the steam and the air from which at least a part of the steam has been removed. The storage container 1, the first heat exchange unit 4A that exchanges heat with the separated water, the second heat exchange unit 4B that exchanges heat with the separated air, and the injection unit 5 that injects water into the container 1. The injection unit 5 condenses the steam contained in the air by injecting water from the inflow unit 31 into the steam-mixed air flowing into the container 1.

According to this configuration, since the water from the injection unit 5 is sprayed on the steam-mixed air flowing in from the inflow unit 31, the steam in the air is condensed into water. This allows the steam to be separated from the air in the form of water. Since the heat transfer coefficient of water is higher than the heat transfer coefficient of steam, more heat can be recovered by recovering heat from water than by recovering heat from steam. As a result, the heat exchange efficiency when recovering heat from the air mixed with steam can be improved.

Further, the injection unit 5 generates a suction force for sucking the air mixed with steam from the inflow unit 31 by injecting water.

According to this configuration, the injection unit 5 has not only a function of spraying water on the steam-mixed air to condense it, but also a function of sucking the steam-mixed air. Thereby, the inflow amount of the air mixed with steam flowing into the container 1 can be increased.

Further, the container 1 has an introduction pipe 3 extending in a predetermined X-axis direction, an inflow portion 31 is provided in the introduction pipe 3, and the injection portion 5 faces the downstream side of the introduction pipe 3 in the introduction pipe 3. And spray water.

According to this configuration, the injection unit 5 injects water not directly into the container 1 but into the introduction pipe 3 which is a space smaller than the container 1, so that the suction force of air can be enhanced.

Further, the introduction pipe 3 has an opening 33 that communicates the air storage portion 22 (the space in which air is stored) and the internal space of the introduction pipe 3 in the internal space of the container 1.

According to this configuration, the air flowing from the introduction pipe 3 into the internal space of the container 1 flows into the air storage unit 22 without entering the water of the water storage unit 21. Thereby, the water content (steam or minute water droplets) contained in the air of the air storage unit 22 can be reduced.

<< Embodiment 2 >>
Subsequently, the heat exchanger 200 according to the second embodiment will be described. FIG. 2 is a schematic view showing the configuration of the heat exchanger 200 according to the second embodiment.

The heat exchanger 200 differs from the heat exchanger 100 in that the container is divided. Therefore, among the heat exchangers 200, the same configurations as those of the heat exchanger 100 are designated by the same reference numerals, the description thereof will be omitted, and different configurations will be mainly described.

The heat exchanger 200 includes a container 201, a heat exchange unit 204 that exchanges heat with water and air, and an injection unit 5 that injects water into the container 201. The heat exchanger 200 separates the steam-mixed air flowing into the container 201 into air and condensed water, and recovers heat from the air and water.

In the container 201, the first container 211 provided with the inflow unit 31 and the injection unit 5, the second container 212 into which the water stored in the first container 211 flows in, and the air stored in the first container 211 flow in. It is divided into a third container 213.

The first container 211 has an introduction pipe 3. The introduction pipe 3 is provided with an inflow portion 31 and an injection portion 5. The first container 211 is formed in a substantially cylindrical shape extending in a predetermined X-axis direction. The lower space of the first container 211 is a water storage unit 21 for storing water generated by the condensation of steam. The upper space of the first container 211 is an air storage unit 22 for storing air from which at least a part of steam has been removed.

The second container 212 is connected to the lower part of the first container 211, that is, the water storage unit 21 via a water connection pipe 214. The water stored in the first container 211 flows into the second container 212 through the water connection pipe 214. That is, the second container 212 also constitutes a part of the water storage unit 21. A water discharge pipe 15 is connected to the second container 212. Water is collected in the first container 211 and the second container 212 up to the highest position of the water discharge pipe 15.

The third container 213 is connected to the upper part of the first container 211, that is, the air storage unit 22 via the air connection pipe 215. The air stored in the first container 211 flows into the third container 213 via the air connection pipe 215. That is, the third container 213 also constitutes a part of the air storage unit 22. The third container 213 is provided with an outflow portion 16 through which air flows out.

The second container 212 and the third container 213 are connected by a pressure equalizing pipe 216 that equalizes the pressure of the second container 212 and the third container 213 and allows the water condensed in the third container 213 to flow into the second container 212. Has been done.

The introduction pipe 3 is provided in the first container 211. The introduction pipe 3 is formed in a substantially cylindrical shape extending in the X-axis direction through the ceiling 23 of the first container 211. The opening 33 of the introduction pipe 3 does not reach the water storage unit 21 and is arranged in the air storage unit 22.

The injection unit 5 is provided in the introduction pipe 3. The upstream end of the supply pipe 51 connected to the injection unit 5 is connected to the bottom 24 of the first container 211. That is, the water of the water storage unit 21 of the first container 211 is supplied to the injection unit 5 via the supply pipe 51.

The heat exchange unit 204 is formed of a heat transfer tube through which water flows and exchanges heat with steam. The heat exchange unit 204 has a first heat exchange unit 204A arranged in the second container 212 and a second heat exchange unit 204B arranged in the third container 213. The first heat exchange section 204A and the second heat exchange section 204B are each formed in a coil shape. Unlike the first heat exchange unit 4A and the second heat exchange unit 4B, the first heat exchange unit 204A and the second heat exchange unit 204B are not connected in series. The first water supply pipe 241 is connected to the lower end of the first heat exchange section 204A, and the first water discharge pipe 242 is connected to the upper end of the first heat exchange section 204A. A second water supply pipe 243 is connected to the lower end of the second heat exchange section 204B, and a second water discharge pipe 244 is connected to the upper end of the second heat exchange section 204B. The first water supply pipe 241 and the second water supply pipe 243 are connected in parallel to a common water supply source (not shown). The first water supply pipe 241 and the second water supply pipe 243 may be connected to different water supply sources, respectively.

Subsequently, the operation of the heat exchanger 200 configured in this way will be described.

The steam-mixed air flowing through the inflow pipe 32 flows into the introduction pipe 3 from the inflow portion 31. At this time, the injection unit 5 injects the water supplied from the water storage unit 21 toward the downstream side of the introduction pipe 3 along the axis of the introduction pipe 3. A suction force is generated by the injection of water from the injection unit 5, and the inflow of steam-mixed air from the inflow unit 31 is promoted. The steam-mixed air that has flowed into the introduction pipe 3 rides on the flow of water injected from the injection unit 5 and circulates in the introduction pipe 3 to the downstream side. At this time, since the water from the injection unit 5 is sprayed on the air mixed with steam, the steam contained in the air is condensed. The water generated by the condensation drops downward from the introduction pipe 3 and accumulates in the water storage portion 21 of the first container 211. On the other hand, the air from which at least a part of the steam has been removed flows into the internal space of the first container 211 through the opening 33 of the introduction pipe 3. Since the opening 33 is located in the air storage unit 22, air flows into the air storage unit 22 through the opening 33 without entering the water of the water storage unit 21.

In this way, the steam-mixed air flowing into the first container 211 is separated into water and air, and the water is stored in the water storage unit 21 and the air is stored in the air storage unit 22. A part of the water stored in the water storage section 21 of the first container 211 flows into the second container 212 via the water connection pipe 214. A part of the air stored in the air storage unit 22 of the first container 211 flows into the third container 213 via the air connection pipe 215.

In the second container 212, water is supplied from the first water supply pipe 241 to the first heat exchange section 204A, and the supplied water circulates in the first heat exchange section 204A and is discharged from the first water discharge pipe 242. NS. The water stored in the second container 212 exchanges heat with the first heat exchange unit 204A. The heat of the water in the second container 212 is recovered by the water flowing through the first heat exchange unit 204A. When the amount of water stored in the second container 212 increases and exceeds the upper limit of the stored amount, the amount of water exceeding the upper limit is discharged through the water discharge pipe 15.

On the other hand, in the third container 213, water is supplied from the second water supply pipe 243 to the second heat exchange section 204B, and the supplied water circulates in the second heat exchange section 204B from the second water discharge pipe 244. It is discharged. The air stored in the third container 213 exchanges heat with the second heat exchange unit 204B. The heat of the air in the third container 213 is recovered by the water flowing through the second heat exchange section 204B. When the air in the third container 213 contains steam or water droplets, the air comes into contact with the second heat exchange unit 204B, so that the steam condenses or the water droplets adhere to the second heat exchange unit 204B. And the air is dehumidified. The water generated in the third container 213 flows into the second container 212 via the pressure equalizing pipe 216. A part of the air stored in the third container 213 is pushed out by the air newly flowing into the third container 213 and flows out from the outflow portion 16.

In this way, the steam-mixed air flowing from the inflow section 31 into the first container 211 is condensed with the steam in the air by spraying the water from the injection section 5. As a result, it is separated into air and water. The separated water flows into the second container 212 and is heat-recovered in the first heat exchange section 204A. The separated air flows into the third container 213 and is heat-recovered in the second heat exchange section 204B. The heat transfer coefficient between water and the heat exchange unit 204 is larger than the heat transfer coefficient between steam and the heat exchange unit 204. Therefore, the amount of heat recovered from the steam can be increased by condensing the steam and then exchanging heat with the heat exchange unit 204.

As described above, the heat exchanger 200 is provided with the inflow portion 31 into which the air mixed with steam flows in, and separates the water generated by the condensation of the steam and the air from which at least a part of the steam has been removed. The storage container 201, the first heat exchange unit 204A that exchanges heat with the separated water, the second heat exchange unit 204B that exchanges heat with the separated air, and the injection unit 5 that injects water into the container 201. The injection unit 5 condenses the steam contained in the air by injecting water from the inflow unit 31 into the steam-mixed air flowing into the container 201, and the container 201 has the inflow unit 31 and the injection unit 5. The first container 211 and the first heat exchange section 204A are provided, and the second container 213 and the second heat exchange section 204B into which the water stored in the first container 211 flows are provided, and the first It is divided into a third container 213 into which the air stored in the container 211 flows.

According to this configuration, since the container 201 is divided, maintainability is improved. For example, only the second container 212 can be maintained. Furthermore, since the container 201 is divided, the overall shape of the container 201 can be changed by changing the shapes and arrangements of the first container 211, the second container 212, and the third container 213. That is, the overall shape of the container 201 can be flexibly changed according to the installation space of the heat exchanger 200.

Further, in the second container 212 and the third container 213, the pressure equalizing pipe 216 for equalizing the pressure of the second container 212 and the third container 213 and allowing the water condensed in the third container 213 to flow into the second container 212. It is connected with.

According to this configuration, it is possible to prevent the pressures of the first container 211, the second container 212, and the third container 213 from becoming unbalanced. As a result, the inflow of water from the first container 211 to the second container 212 and the inflow of air from the first container 211 to the third container 213 are smoothly performed. Further, the water generated by dehumidifying the air in the third container 213 does not accumulate in the third container 213 but flows into the second container 212.

Further, the first heat exchange section 204A and the second heat exchange section 204B are separated.

According to this configuration, a heat exchange section for water and a heat exchange section for air can be provided separately. In the above example, water is supplied in parallel to the first heat exchange section 204A and the second heat exchange section 204B. Therefore, relatively low temperature water is supplied to both the first heat exchange section 204A and the second heat exchange section 204B. Thereby, the heat exchange efficiency of both the first heat exchange section 204A and the second heat exchange section 204B can be improved. Further, for example, by lowering the temperature of the water supplied to the first heat exchange unit 204A or increasing the flow rate of the water supplied to the first heat exchange unit 204A, the first heat exchange unit 204A The heat exchange efficiency of the second heat exchange unit 204B can be made higher than that of the second heat exchange unit 204B.

<< Other Embodiments >>
As described above, the above-described embodiment has been described as an example of the technology disclosed in the present application. However, the technique in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. are made as appropriate. It is also possible to combine the components described in the above embodiment to form a new embodiment. In addition, among the components described in the attached drawings and detailed explanations, not only the components essential for problem solving but also the components not essential for problem solving in order to exemplify the above-mentioned technology. Can also be included. Therefore, the fact that those non-essential components are described in the accompanying drawings or detailed description should not immediately determine that those non-essential components are essential.

The embodiment may have the following configuration.

For example, the introduction pipe 3 may be omitted. The inflow unit 31 may be provided directly in the container 1 or the first container 211, and the injection unit 5 may be arranged at a position where water can be injected into the steam-mixed air flowing in from the inflow unit 31. However, from the viewpoint of sucking the air mixed with steam by the suction force of the water jet from the injection unit 5, it is preferable to provide the introduction pipe 3 and inject water from the injection unit 5 in a somewhat narrow space.

The water supplied to the injection unit 5 may be water other than the water storage unit 21. That is, water may be supplied to the injection unit 5 from a water supply source different from the water storage unit 21.

Although the opening 33 of the heat transfer tube 3 is arranged in the air storage unit 22, it may be arranged in the water storage unit 21. In this case, the steam-mixed air flowing in from the inflow section 31 passes through the water in the water storage section 21, so that the condensation of steam is further promoted. However, considering the degree of drying of the water after separating the steam, it is preferable that the opening 33 is arranged in the air storage portion 22 as described above.

The heat exchange units 4 and 204 employ heat transfer tubes that are not provided with fins or the like, but are not limited thereto. The heat exchange portions 4, 204 may be a fin tube type or a heat sink. The fluid flowing inside the heat exchange units 4,204 is not limited to water, and may be a medium other than water.

The first heat exchange units 41A and 204A and the second heat exchange units 4B and 204B do not have to be the same type of heat exchange units. For example, the first heat exchange portions 41A and 204A may be formed of a heat transfer tube having no fins, while the second heat exchange portions 4B and 204B may be formed of a fin tube.

The first heat exchange unit 4A and the second heat exchange unit 4B may not be connected and may be separated. In that case, the first heat exchange unit 4A and the second heat exchange unit 4B are configured such that a common medium is continuously distributed, a common medium is distributed in parallel, or different media are distributed separately. Can be adopted.

Even if the first heat exchange section 204A and the second heat exchange section 204B are connected to each other and a common medium is continuously distributed as in the first heat exchange section 4A and the second heat exchange section 4B. good.

As described above, the techniques disclosed herein are useful for heat exchangers.

100,200 Heat exchanger 1,201 Container 211 1st container 212 2nd container 213 3rd container 216 Pressure equalizing pipe 22 Air storage part 3 Introduction pipe 31 Inflow part 33 Opening 4A, 204A 1st heat exchange part 4B, 204B 2nd Heat exchange unit 5 Injection unit

Claims (6)

A container in which an inflow part through which air mixed with steam flows is provided, and water generated by condensation of steam and air from which at least a part of steam has been removed are separately stored.
The first heat exchange unit that exchanges heat with the separated water,
A second heat exchange unit that exchanges heat with the separated air,
It is provided with an injection unit for injecting water into the container.
The container has an introduction tube extending in a predetermined axial direction.
The inflow portion is provided in the introduction pipe and is provided.
The injection unit injects water into the introduction pipe toward the downstream side of the introduction pipe, and injects water from the inflow portion into the steam-mixed air flowing into the container, thereby causing steam contained in the air. Heat exchanger that condenses. In the heat exchanger according to claim 1,
The injection unit is a heat exchanger that generates a suction force for sucking air mixed with steam from the inflow unit by injecting water. In the heat exchanger according to claim 1 or 2.
The introduction pipe is a heat exchanger having an opening for communicating the space in which air is stored in the internal space of the container and the internal space of the introduction pipe. In the heat exchanger according to any one of claims 1 to 3.
A heat exchanger to which the water separated in the container is supplied to the injection unit. A container in which an inflow part through which air mixed with steam flows is provided, and water generated by condensation of steam and air from which at least a part of steam has been removed are separately stored.
The first heat exchange unit that exchanges heat with the separated water,
A second heat exchange unit that exchanges heat with the separated air,
It is provided with an injection unit for injecting water into the container.
The injection section condenses the steam contained in the air by injecting water from the inflow section into the steam-mixed air flowing into the container.
The container includes a first container provided with the inflow portion and the injection portion, a second container provided with the first heat exchange portion and into which water stored in the first container flows, and the second container. A heat exchanger provided with a heat exchanger and divided into a third container into which the air stored in the first container flows. In the heat exchanger according to claim 5,
The second container and the third container are connected by a pressure equalizing pipe that equalizes the pressure between the second container and the third container and allows the water condensed in the third container to flow into the second container. Heat exchanger.

Images