A heat exchange device, an evaporator and a condenser

Abstract

The utility model discloses a heat exchange device, an evaporator and a condenser. The heat exchange device comprises a shell, a first medium inlet, a first medium outlet, a second medium inlet, a second medium outlet, a third medium inlet and a third medium outlet are arranged on the shell, a first medium channel is arranged in the shell, the first medium channel is spiral, an upstream heat exchange tube and a downstream heat exchange tube are arranged in the first medium channel in sequence along the flow direction of the first medium, a second medium channel for the flow of the second medium is arranged in the upstream heat exchange tube, and a third medium channel for the flow of the third medium is arranged in the downstream heat exchange tube. In the utility model, the first medium first exchanges heat with the second medium, and then exchanges heat with the third medium. Through the two heat exchanges, the heat of the medium can be fully absorbed, and the residual heat of the medium can be effectively utilized, which can improve the heat exchange effect of the heat exchange device and increase the energy efficiency ratio of the heat exchange device.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchange equipment, and specifically relates to a heat exchange device, an evaporator and a condenser. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a higher temperature fluid to a lower temperature fluid, so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also one of the main equipment for improving energy utilization. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial production. They can be used as heaters, coolers, condensers, evaporators and reboilers in industrial production.

[0003] Traditional heat exchangers mainly include plate heat exchangers and shell and tube heat exchangers. The most typical plate heat exchanger is the interlayer heat exchanger, which has a long history of industrial application. The main structure consists of heat exchange plates and rubber strips between the plates. It has long dominated the market, but it is large in size, has low heat exchange efficiency, and is expensive to replace the rubber strips (the cost of replacing the rubber strips accounts for about 1 / 3-1 / 2 of the entire process). It is mainly used for heat exchange between liquids and liquids, often called water-to-water heat exchange in the industry, and its heat exchange efficiency is 5000w / m 2 .K. In order to improve the heat transfer coefficient of the fluid outside the tube, a certain number of transverse baffles are usually installed in the shell. The baffles can not only prevent the fluid from short-circuiting and increase the fluid velocity, but also force the fluid to cross-flow through the tube bundle multiple times along the specified path, greatly increasing the turbulence. Commonly used baffles are round and disc-shaped, and the former is more widely used.

[0004] Shell and tube heat exchanger (also known as shell and tube heat exchanger) is a shell and tube heat exchanger mainly composed of shell, tube bundle, tube sheet and head. The shell is mostly circular, with parallel tube bundles or spiral tubes installed inside, and the two ends of the tube bundle are fixed on the tube sheet. In the shell and tube heat exchanger, two fluids are exchanged, one flows inside the tube, and its stroke is called tube pass; the other flows outside the tube, and its stroke is called shell pass. The wall of the tube bundle is the heat transfer surface. The types of tubes are different, and the process is generally three types of diameters of 16mm, 20mm or 25mm, and the tube wall thickness is generally 1mm, 1.5mm, 2mm and 2.5mm. The imported heat exchanger can be as low as 8mm in diameter and the wall thickness is only 0.6mm. The shell and tube heat exchanger, with a spiral tube bundle design, can maximize the turbulence effect and increase the heat exchange efficiency. The asymmetric design of the internal shell and tube layer can reach up to 4.6 times. This asymmetric design determines its wide application in the field of steam-water heat exchange. The maximum heat exchange efficiency can reach 14000w / m2 .k, greatly improving production efficiency and saving costs.

[0005] However, in the prior art, whether it is a plate heat exchanger or a shell and tube heat exchanger, it only has two media, satisfying the functions of one medium providing heat and the other medium absorbing heat. The heating medium and the heat absorbing medium only exchange heat once. The heating medium still has a certain amount of residual heat after the heat exchange, and its energy is not fully utilized, resulting in poor heat exchange efficiency and affecting its scope of use. Utility Model Content

[0006] The purpose of the utility model is to provide a heat exchange device, an evaporator and a condenser, which are used to solve the above problems existing in the prior art.

[0007] In order to achieve the above-mentioned purpose, in a first aspect, the utility model adopts the following technical scheme: a heat exchange device, comprising a shell, on which a first medium inlet, a first medium outlet, a second medium inlet, a second medium outlet, a third medium inlet and a third medium outlet are provided, a first medium channel for the circulation of a first medium is provided in the shell, the first medium channel is spiral, and the two ends of the first medium channel are respectively connected to the first medium inlet and the first medium outlet, an upstream heat exchange tube and a downstream heat exchange tube are sequentially provided in the first medium channel along the circulation direction of the first medium, the upstream heat exchange tube and the downstream heat exchange tube can both perform heat exchange with the first medium, a second medium channel for the circulation of a second medium is provided in the upstream heat exchange tube, and the two ends of the second medium channel are respectively connected to the second medium inlet and the second medium outlet; a third medium channel for the circulation of a third medium is provided in the downstream heat exchange tube, and the two ends of the third medium channel are respectively connected to the third medium inlet and the third medium outlet.

[0008] As an optional implementation of the above technical solution, the shell includes a cylindrical shell and a cylindrical shell core, the cylindrical shell is arranged on the outside of the cylindrical shell core, and the first medium channel is arranged between the cylindrical shell and the cylindrical shell core.

[0009] As an optional implementation of the above technical solution, the flow direction of the first medium of the first medium inlet is consistent with the tangent direction of the cylindrical shell.

[0010] As an optional implementation of the above technical solution, the flow direction of the first medium at the first medium outlet is perpendicular to the tangent direction of the cylindrical shell.

[0011] As an optional implementation of the above technical solution, the upstream heat exchange tube is spirally arranged in the first medium channel, and the spiral direction of the upstream heat exchange tube is consistent with the spiral direction of the first medium channel.

[0012] As an optional implementation of the above technical solution, the flow direction of the second medium in the second medium channel is consistent with the flow direction of the first medium in the first medium channel.

[0013] As an optional implementation of the above technical solution, the downstream heat exchange tube is spirally arranged in the first medium channel, and the spiral direction of the downstream heat exchange tube is consistent with the spiral direction of the first medium channel.

[0014] As an optional implementation of the above technical solution, the flow direction of the third medium in the third medium channel is opposite to the flow direction of the first medium in the first medium channel.

[0015] As an optional implementation of the above technical solution, the second medium inlet and the third medium inlet are both connected to a distributor.

[0016] As an optional implementation of the above technical solution, the second medium outlet and the third medium outlet are both connected to a collector.

[0017] In a second aspect, the utility model adopts the following technical solution: an evaporator comprises the above-mentioned heat exchange device.

[0018] In a third aspect, the utility model adopts the following technical solution: a condenser, comprising the above-mentioned heat exchange device.

[0019] The beneficial effects of the utility model are:

[0020] In the utility model, an upstream heat exchange tube and a downstream heat exchange tube are sequentially arranged in the first medium channel along the flow direction of the first medium. Both the upstream heat exchange tube and the downstream heat exchange tube can exchange heat with the first medium. The first medium flows along the first medium channel, the second medium flows along the second medium channel, and the third medium flows along the third medium channel. The first medium first exchanges heat with the second medium and then exchanges heat with the third medium. Through two heat exchanges, the heat of the medium can be fully absorbed, and the waste heat of the medium can be effectively utilized, which can improve the heat exchange effect of the heat exchange device and increase the energy efficiency ratio of the heat exchange device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an implementation method of the utility model.

[0022] In the figure: 1-first medium inlet; 2-first medium outlet; 3-second medium inlet; 4-second medium outlet; 5-third medium inlet; 6-third medium outlet; 7-upstream heat exchange tube; 8-downstream heat exchange tube; 9-cylindrical shell; 10-cylindrical shell core. DETAILED DESCRIPTION

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment provides a heat exchange device, including a shell, on which a first medium inlet 1, a first medium outlet 2, a second medium inlet 3, a second medium outlet 4, a third medium inlet 5 and a third medium outlet 6 are provided, the first medium inlet 1 and the first medium outlet 2 are respectively arranged at two ends of the shell, and the second medium inlet 3, the second medium outlet 4, the third medium inlet 5 and the third medium outlet 6 are all arranged in the middle of the shell.

[0025] A first medium channel for circulating a first medium is provided in the shell, the first medium channel is spiral, and both ends of the first medium channel are respectively connected to a first medium inlet 1 and a first medium outlet 2, the first medium inlet 1 is used to input a heating medium or a heat absorbing medium, the heating medium or the heat absorbing medium flows along the first medium channel, and is finally discharged from the first medium outlet 2.

[0026] An upstream heat exchange tube 7 and a downstream heat exchange tube 8 are sequentially arranged in the first medium channel along the flow direction of the first medium. Both the upstream heat exchange tube 7 and the downstream heat exchange tube 8 can exchange heat with the first medium. A second medium channel for the flow of the second medium is arranged in the upstream heat exchange tube 7. Both ends of the second medium channel are respectively connected to the second medium inlet 3 and the second medium outlet 4. The second medium inlet 3 is used to input a heat absorbing medium or a heat supply medium. The second medium flows along the second medium channel and is discharged from the second medium outlet 4 after heat exchange with the first medium.

[0027] The downstream heat exchange tube 8 is provided with a third medium channel for the circulation of the third medium, and the two ends of the third medium channel are respectively connected to the third medium inlet 5 and the third medium outlet 6. The third medium inlet 5 is used to input the heat absorbing medium or the heat supply medium, and the third medium flows along the third medium channel and is discharged from the third medium outlet 6 after heat exchange with the first medium. The first medium exchanges heat with the second medium and the third medium at the same time, which can make full use of the heat of the first medium or fully heat the first medium. Since one heat exchanger uses three media for heat exchange, better energy utilization is achieved. It should be noted that the second medium and the third medium can use the same medium or different media.

[0028] The first medium flows along the first medium channel, the second medium flows along the second medium channel, and the third medium flows along the third medium channel. The first medium first exchanges heat with the second medium and then exchanges heat with the third medium. Through two heat exchanges, the heat of the medium can be fully absorbed, and the waste heat of the medium can be effectively utilized, which can improve the heat exchange effect of the heat exchange device and increase the energy efficiency ratio of the heat exchange device.

[0029] The utility model can flexibly select the first medium, the second medium and the third medium for heat exchange, and the first medium is used as a heat supply medium and a heat absorption medium, which is convenient for improving the energy efficiency of the cascade refrigeration equipment and creates favorable conditions for completing the multifunctionality of the heat exchange device.

[0030] Specifically, the shell includes a cylindrical shell 9 and a cylindrical shell core 10, the cylindrical shell 9 is arranged outside the cylindrical shell core 10, and the first medium channel is arranged between the cylindrical shell 9 and the cylindrical shell core 10. Since the first medium channel is spiral, the inner wall of the cylindrical shell 9 and the outer wall of the cylindrical shell core 10 are both spiral, and the upstream heat exchange tube 7 and the downstream heat exchange tube 8 are both located in the first medium channel, which can effectively increase the heat exchange area and improve the heat exchange effect.

[0031] Preferably, the first medium flow direction of the first medium inlet 1 is consistent with the tangential direction of the cylindrical shell 9 to reduce the resistance of the first medium, and the first medium flow direction of the first medium outlet 2 is perpendicular to the tangential direction of the cylindrical shell 9. Since the first medium channel is spiral, the first medium forms a vortex liquid in the first medium channel, and exchanges heat with the second medium and the third medium at a relatively uniform speed and flow rate.

[0032] In order to improve the heat exchange effect between the first medium and the second medium, the upstream heat exchange tube 7 is spirally arranged in the first medium channel, and the spiral direction of the upstream heat exchange tube 7 is consistent with the spiral direction of the first medium channel. The flow direction of the second medium in the second medium channel is consistent with the flow direction of the first medium in the first medium channel.

[0033] In order to improve the heat exchange effect between the first medium and the third medium, the downstream heat exchange tube 8 is spirally arranged in the first medium channel, and the spiral direction of the downstream heat exchange tube 8 is consistent with the spiral direction of the first medium channel. The flow direction of the third medium in the third medium channel is opposite to the flow direction of the first medium in the first medium channel.

[0034] For some special occasions, when multiple heat exchange devices are required to be used together, the second medium inlet 3 and the third medium inlet 5 are both connected to distributors, and the second medium outlet 4 and the third medium outlet 6 are both connected to collectors. The distributor is usually a liquid distributor, which is used to distribute the second medium or the third medium to different heat exchange devices. The collector is usually a liquid collector, which is used to collect the second medium or the third medium output by different heat exchange devices for centralized utilization.

[0035] The utility model utilizes three media for heat exchange in the heat exchange device, and through two heat exchanges, can achieve better energy utilization, reduce heat loss, and improve waste heat utilization rate. It has a simple structure, low operating cost, high economic benefit, and a wide range of applications.

[0036] Example 2

[0037] This embodiment provides an evaporator, including an evaporator body and a heat exchange device, such as Figure 1 As shown, the heat exchange device includes a shell, on which a first medium inlet 1, a first medium outlet 2, a second medium inlet 3, a second medium outlet 4, a third medium inlet 5 and a third medium outlet 6 are provided. The first medium inlet 1 and the first medium outlet 2 are respectively arranged at two ends of the shell, and the second medium inlet 3, the second medium outlet 4, the third medium inlet 5 and the third medium outlet 6 are all arranged in the middle of the shell.

[0038] A first medium channel for circulating a first medium is provided in the shell, the first medium channel is spiral, and both ends of the first medium channel are respectively connected to a first medium inlet 1 and a first medium outlet 2, the first medium inlet 1 is used to input a heating medium or a heat absorbing medium, the heating medium or the heat absorbing medium flows along the first medium channel, and is finally discharged from the first medium outlet 2.

[0039] An upstream heat exchange tube 7 and a downstream heat exchange tube 8 are sequentially arranged in the first medium channel along the flow direction of the first medium. Both the upstream heat exchange tube 7 and the downstream heat exchange tube 8 can exchange heat with the first medium. A second medium channel for the flow of the second medium is arranged in the upstream heat exchange tube 7. Both ends of the second medium channel are respectively connected to the second medium inlet 3 and the second medium outlet 4. The second medium inlet 3 is used to input a heat absorbing medium or a heat supply medium. The second medium flows along the second medium channel and is discharged from the second medium outlet 4 after heat exchange with the first medium.

[0040] The downstream heat exchange tube 8 is provided with a third medium channel for the circulation of the third medium, and the two ends of the third medium channel are respectively connected to the third medium inlet 5 and the third medium outlet 6. The third medium inlet 5 is used to input the heat absorbing medium or the heat supply medium, and the third medium flows along the third medium channel and is discharged from the third medium outlet 6 after heat exchange with the first medium. The first medium exchanges heat with the second medium and the third medium at the same time, which can make full use of the heat of the first medium or fully heat the first medium. Since one heat exchanger uses three media for heat exchange, better energy utilization is achieved. It should be noted that the second medium and the third medium can use the same medium or different media.

[0041] The first medium flows along the first medium channel, the second medium flows along the second medium channel, and the third medium flows along the third medium channel. The first medium first exchanges heat with the second medium and then exchanges heat with the third medium. Through two heat exchanges, the heat of the medium can be fully absorbed, and the waste heat of the medium can be effectively utilized, which can improve the heat exchange effect of the heat exchange device and increase the energy efficiency ratio of the heat exchange device.

[0042] Specifically, the shell includes a cylindrical shell 9 and a cylindrical shell core 10, the cylindrical shell 9 is arranged outside the cylindrical shell core 10, and the first medium channel is arranged between the cylindrical shell 9 and the cylindrical shell core 10. Since the first medium channel is spiral, the inner wall of the cylindrical shell 9 and the outer wall of the cylindrical shell core 10 are both spiral, and the upstream heat exchange tube 7 and the downstream heat exchange tube 8 are both located in the first medium channel, which can effectively increase the heat exchange area and improve the heat exchange effect.

[0043] Preferably, the first medium flow direction of the first medium inlet 1 is consistent with the tangential direction of the cylindrical shell 9 to reduce the resistance of the first medium, and the first medium flow direction of the first medium outlet 2 is perpendicular to the tangential direction of the cylindrical shell 9. Since the first medium channel is spiral, the first medium forms a vortex liquid in the first medium channel, and exchanges heat with the second medium and the third medium at a relatively uniform speed and flow rate.

[0044] In order to improve the heat exchange effect between the first medium and the second medium, the upstream heat exchange tube 7 is spirally arranged in the first medium channel, and the spiral direction of the upstream heat exchange tube 7 is consistent with the spiral direction of the first medium channel. The flow direction of the second medium in the second medium channel is consistent with the flow direction of the first medium in the first medium channel.

[0045] In order to improve the heat exchange effect between the first medium and the third medium, the downstream heat exchange tube 8 is spirally arranged in the first medium channel, and the spiral direction of the downstream heat exchange tube 8 is consistent with the spiral direction of the first medium channel. The flow direction of the third medium in the third medium channel is opposite to the flow direction of the first medium in the first medium channel.

[0046] For some special occasions, when multiple evaporators are needed to be used together, the second medium inlet 3 and the third medium inlet 5 are both connected to distributors, and the second medium outlet 4 and the third medium outlet 6 are both connected to collectors. The distributor is usually a liquid distributor, which is used to distribute the second medium or the third medium to different heat exchange devices. The collector is usually a liquid collector, which is used to collect the second medium or the third medium output from different heat exchange devices for centralized utilization.

[0047] The evaporator of the present invention can be applied to air conditioners, vehicles or other scenarios, and the present invention is not limited thereto.

[0048] Example 3

[0049] This embodiment provides a condenser, including a condenser body and a heat exchange device, such as Figure 1As shown, the heat exchange device includes a shell, on which a first medium inlet 1, a first medium outlet 2, a second medium inlet 3, a second medium outlet 4, a third medium inlet 5 and a third medium outlet 6 are provided. The first medium inlet 1 and the first medium outlet 2 are respectively arranged at two ends of the shell, and the second medium inlet 3, the second medium outlet 4, the third medium inlet 5 and the third medium outlet 6 are all arranged in the middle of the shell.

[0050] A first medium channel for circulating a first medium is provided in the shell, the first medium channel is spiral, and both ends of the first medium channel are respectively connected to a first medium inlet 1 and a first medium outlet 2, the first medium inlet 1 is used to input a heating medium or a heat absorbing medium, the heating medium or the heat absorbing medium flows along the first medium channel, and is finally discharged from the first medium outlet 2.

[0051] An upstream heat exchange tube 7 and a downstream heat exchange tube 8 are sequentially arranged in the first medium channel along the flow direction of the first medium. Both the upstream heat exchange tube 7 and the downstream heat exchange tube 8 can exchange heat with the first medium. A second medium channel for the flow of the second medium is arranged in the upstream heat exchange tube 7. Both ends of the second medium channel are respectively connected to the second medium inlet 3 and the second medium outlet 4. The second medium inlet 3 is used to input a heat absorbing medium or a heat supply medium. The second medium flows along the second medium channel and is discharged from the second medium outlet 4 after heat exchange with the first medium.

[0052] The downstream heat exchange tube 8 is provided with a third medium channel for the circulation of the third medium, and the two ends of the third medium channel are respectively connected to the third medium inlet 5 and the third medium outlet 6. The third medium inlet 5 is used to input the heat absorbing medium or the heat supply medium, and the third medium flows along the third medium channel and is discharged from the third medium outlet 6 after heat exchange with the first medium. The first medium exchanges heat with the second medium and the third medium at the same time, which can make full use of the heat of the first medium or fully heat the first medium. Since one heat exchanger uses three media for heat exchange, better energy utilization is achieved. It should be noted that the second medium and the third medium can use the same medium or different media.

[0053] The first medium flows along the first medium channel, the second medium flows along the second medium channel, and the third medium flows along the third medium channel. The first medium first exchanges heat with the second medium and then exchanges heat with the third medium. Through two heat exchanges, the heat of the medium can be fully absorbed, and the waste heat of the medium can be effectively utilized, which can improve the heat exchange effect of the heat exchange device and increase the energy efficiency ratio of the heat exchange device.

[0054] Specifically, the shell includes a cylindrical shell 9 and a cylindrical shell core 10, the cylindrical shell 9 is arranged outside the cylindrical shell core 10, and the first medium channel is arranged between the cylindrical shell 9 and the cylindrical shell core 10. Since the first medium channel is spiral, the inner wall of the cylindrical shell 9 and the outer wall of the cylindrical shell core 10 are both spiral, and the upstream heat exchange tube 7 and the downstream heat exchange tube 8 are both located in the first medium channel, which can effectively increase the heat exchange area and improve the heat exchange effect.

[0055] Preferably, the first medium flow direction of the first medium inlet 1 is consistent with the tangential direction of the cylindrical shell 9 to reduce the resistance of the first medium, and the first medium flow direction of the first medium outlet 2 is perpendicular to the tangential direction of the cylindrical shell 9. Since the first medium channel is spiral, the first medium forms a vortex liquid in the first medium channel, and exchanges heat with the second medium and the third medium at a relatively uniform speed and flow rate.

[0056] In order to improve the heat exchange effect between the first medium and the second medium, the upstream heat exchange tube 7 is spirally arranged in the first medium channel, and the spiral direction of the upstream heat exchange tube 7 is consistent with the spiral direction of the first medium channel. The flow direction of the second medium in the second medium channel is consistent with the flow direction of the first medium in the first medium channel.

[0057] In order to improve the heat exchange effect between the first medium and the third medium, the downstream heat exchange tube 8 is spirally arranged in the first medium channel, and the spiral direction of the downstream heat exchange tube 8 is consistent with the spiral direction of the first medium channel. The flow direction of the third medium in the third medium channel is opposite to the flow direction of the first medium in the first medium channel.

[0058] For some special occasions, when multiple evaporators are needed to be used together, the second medium inlet 3 and the third medium inlet 5 are both connected to distributors, and the second medium outlet 4 and the third medium outlet 6 are both connected to collectors. The distributor is usually a liquid distributor, which is used to distribute the second medium or the third medium to different heat exchange devices. The collector is usually a liquid collector, which is used to collect the second medium or the third medium output from different heat exchange devices for centralized utilization.

[0059] The evaporator of the present invention can be applied to air conditioners, vehicles or other scenarios, and the present invention is not limited thereto.

[0060] In the description of the present utility model, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. In the absence of mutual contradictions, those skilled in the art may combine the features of different embodiments. The scope of protection of the present utility model is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present utility model, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the scope of protection of the present utility model.

Claims

1. A heat exchange device, comprising a housing, characterized in that: The shell is provided with a first medium inlet (1), a first medium outlet (2), a second medium inlet (3), a second medium outlet (4), a third medium inlet (5) and a third medium outlet (6); a first medium channel for circulating the first medium is provided in the shell, the first medium channel is spiral-shaped, and the two ends of the first medium channel are respectively connected to the first medium inlet (1) and the first medium outlet (2); an upstream heat exchange tube (7) and a downstream heat exchange tube (8) are sequentially provided in the first medium channel along the circulation direction of the first medium, the upstream heat exchange tube (7) and the downstream heat exchange tube (8) are both capable of heat exchange with the first medium; a second medium channel for circulating the second medium is provided in the upstream heat exchange tube (7), and the two ends of the second medium channel are respectively connected to the second medium inlet (3) and the second medium outlet (4); a third medium channel for circulating the third medium is provided in the downstream heat exchange tube (8), and the two ends of the third medium channel are respectively connected to the third medium inlet (5) and the third medium outlet (6).

2. The heat exchange device according to claim 1, characterized in that: The outer shell comprises a cylindrical shell sleeve (9) and a cylindrical shell core (10); the cylindrical shell sleeve (9) is arranged outside the cylindrical shell core (10); and the first medium channel is arranged between the cylindrical shell sleeve (9) and the cylindrical shell core (10).

3. The heat exchange device according to claim 2, characterized in that: The first medium flow direction of the first medium inlet (1) is consistent with the tangential direction of the cylindrical shell (9); the first medium flow direction of the first medium outlet (2) is perpendicular to the tangential direction of the cylindrical shell (9).

4. The heat exchange device according to claim 1, characterized in that: The upstream heat exchange tube (7) is arranged in a spiral shape in the first medium channel, and the spiral direction of the upstream heat exchange tube (7) is consistent with the spiral direction of the first medium channel.

5. The heat exchange device according to claim 4, characterized in that: The flow direction of the second medium in the second medium channel is consistent with the flow direction of the first medium in the first medium channel.

6. The heat exchange device according to claim 1, characterized in that: The downstream heat exchange tube (8) is arranged in a spiral shape in the first medium channel, and the spiral direction of the downstream heat exchange tube (8) is consistent with the spiral direction of the first medium channel.

7. The heat exchange device according to claim 6, characterized in that: The flow direction of the third medium in the third medium channel is opposite to the flow direction of the first medium in the first medium channel.

8. The heat exchange device according to claim 1, characterized in that: The second medium inlet (3) and the third medium inlet (5) are both connected to a distributor; the second medium outlet (4) and the third medium outlet (6) are both connected to a collector.

9. An evaporator, characterized in that: A heat exchange device comprising any one of claims 1 to 8.

10. A condenser, characterized in that: A heat exchange device comprising any one of claims 1 to 8.

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