Evaporation, condensation, heat exchange and separation device

Abstract

The utility model discloses an evaporation condensation heat exchange separation device which comprises a heat exchange module and a separation module, the heat exchange module comprises a first shell and a plurality of pipe bodies, the pipe bodies are arranged in the first shell, pipe pass spaces are formed in the pipe bodies, the space outside the pipe pass spaces in the first shell forms shell pass spaces, and the shell pass spaces are arranged in the first shell. The tube pass space is used for introducing a to-be-separated mixture, and the shell pass space is used for introducing a heat exchange working medium; the separation module is detachably connected with the heat exchange module, the separation module communicates with the tube pass space, and the separation module is provided with a gas outlet and at least one liquid outlet.

Description

Technical Field

[0001] This application relates to the technical field of heat exchange equipment, and particularly to an evaporation condensation heat exchange and separation device. Background Art

[0002] In industries such as chemical engineering, energy, and refrigeration, the evaporation condensation process is an indispensable part. For example, in the chemical production process, it is not only necessary to condense a mixture containing volatile organic compounds, but also to perform multiple distillations to sequentially separate various components therein. In related technologies, a condensing device, a distillation device, etc. are often used to perform multiple treatments on the mixture separately, and different distillation temperatures need to be set when distilling different components. In this process, there are usually problems such as low heat exchange efficiency of the condensing device, complex distillation process, and too long process flow. Utility Model Content

[0003] To solve at least one of the above technical problems, this application provides an evaporation condensation heat exchange and separation device, which can condense and separate components of a mixture to be separated, and the technical solutions adopted are as follows.

[0004] In a first aspect, the evaporation condensation heat exchange and separation device provided by this application includes a heat exchange module and a separation module. The heat exchange module includes a first housing and a plurality of tubes. The plurality of tubes are arranged in the first housing. A tube-side space is formed inside the tubes, and the space outside the tube-side space in the first housing forms a shell-side space. The tube-side space is used to introduce the mixture to be separated, and the shell-side space is used to introduce a heat exchange working medium; the separation module is detachably connected to the heat exchange module, the separation module is communicated with the tube-side space, and the separation module is provided with a gas outlet and at least one liquid outlet.

[0005] In some embodiments of the first aspect of this application, the separation module includes a second housing and a spiral blade. The spiral blade is arranged in the second housing. The gas outlet is arranged at the top of the second housing. The liquid outlet includes a first outlet, and the first outlet is arranged at the bottom of the second housing and corresponds to the spiral blade.

[0006] In some embodiments of the first aspect of this application, the separation module further includes a first separation member. The first separation member is arranged downstream of the spiral blade. The liquid outlet further includes a second outlet, and the second outlet is arranged at the bottom of the second housing and is located downstream of the first separation member.

[0007] In some embodiments of the first aspect of the present application, the separation module further includes a second separation member disposed downstream of the second outlet. The liquid outlet further includes a third outlet disposed at the bottom of the second housing and downstream of the second separation member. The gas outlet is located downstream of the second separation member.

[0008] In some embodiments of the first aspect of the present application, the first separation member is a water-blocking and demisting plate, and the second separation member is a wire mesh dehumidifier.

[0009] In some embodiments of the first aspect of the present application, the separation module further includes an arc-shaped return member disposed between the second separation member and the gas outlet. The arc-shaped return member is bent in a direction away from the second separation member.

[0010] In some embodiments of the first aspect of the present application, the separation module is provided with at least two spiral blades. The shape of the spiral blades is a chord wave curve, and the two spiral blades are arranged in an interleaved manner.

[0011] In some embodiments of the first aspect of the present application, the heat exchange module is provided with a first flange, and the separation module is provided with a second flange. The first flange and the second flange are detachably connected to enable the heat exchange module and the separation module to be assembled or separated from each other.

[0012] In some embodiments of the first aspect of the present application, the tube body is a spiral flat tube.

[0013] In a second aspect, the present application provides another evaporation condensation heat exchange and separation device, including a heat exchange module and a rotating blade. The heat exchange module includes a third housing and a plurality of tube bodies disposed in the third housing. A tube-side space is formed inside the tube bodies, and a shell-side space is formed in the space outside the tube-side space in the third housing. The tube-side space is used to introduce a heat exchange working medium, and the shell-side space is used to introduce a mixture to be separated. The rotating blade is disposed in the shell-side space and is used to separate the mixture.

[0014] The embodiments of the present application have at least the following beneficial effects: By using the heat exchange module, the mixture to be separated can be evaporated or condensed. The gas-phase components in the mixture to be separated can exchange heat with the heat exchange medium passing through the shell-side space by using the wall surface of the tube body during the process of passing through the tube-side space, so as to condense and form a liquid-phase substance. In addition, after the mixture is condensed, it enters the separation module, and the separation assembly can separate the gas-phase substance and the liquid-phase substance. The non-condensable gas is discharged through the gas outlet, and the separation assembly also separates different components in the mixture. The separated liquid-phase components are discharged through the liquid outlet, so as to achieve the effects of condensing the mixture and separating the components. By using the evaporation-condensation heat exchange separation device provided by this embodiment, not only can the condensation of the mixture and the separation of the components be realized, and the separation efficiency of the mixture can be improved, but also by using the detachable connection between the heat exchange module and the separation module, this modular design can facilitate the installation, disassembly and maintenance of the heat exchange separation device. At the same time, the modular design can also flexibly configure the heat exchange separation device according to different production needs. Brief Description of the Drawings

[0015] The aspects and advantages described and / or appended in the embodiments of the present application will become obvious and easy to understand in conjunction with the following drawings. It should be noted that the embodiments shown in the following drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0016] Figure 1 It is a schematic structural diagram of the first example of the evaporation-condensation heat exchange separation device provided by the embodiment of the present application;

[0017] Figure 2 It is a schematic structural diagram of the second example of the evaporation-condensation heat exchange separation device provided by the embodiment of the present application.

[0018] Reference numerals: 100, evaporation-condensation heat exchange separation device; 10, heat exchange module; 11, first housing; 12, tube body; 13, first flange; 14, third housing; 15, baffle plate; 20, separation module; 21, gas outlet; 22, liquid outlet; 221, first outlet; 222, second outlet; 223, third outlet; 23, second housing; 24, spiral blade; 25, first separation member; 26, second separation member; 27, arc-shaped return member; 28, second flange; 30, rotating blade. Detailed Description of the Embodiments

[0019] The following will Figures 1 to 2 describe the embodiments of the present application in detail. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described by referring to the drawings below are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0020] In the description of the present application, it should be understood that if terms such as "center", "middle part", "longitudinal direction", "transverse direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial direction", "radial direction", "circumferential direction", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0021] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0022] Embodiment 1

[0023] Please refer to Figure 1 , the present application provides an evaporation condensation heat exchange separation device 100 (hereinafter referred to as the heat exchange separation device 100), which includes a heat exchange module 10 and a separation module 20. The heat exchange module 10 includes a first housing 11 and a plurality of tubes 12. The plurality of tubes 12 are arranged in the first housing 11. A tube-side space is formed inside the tubes 12, and the space outside the tube-side space in the first housing 11 forms a shell-side space. The tube-side space is used to introduce the mixture to be separated, and the shell-side space is used to introduce the heat exchange working medium; the separation module 20 is detachably connected to the heat exchange module 10, the separation module 20 communicates with the tube-side space, and the separation module 20 is provided with a gas outlet 21 and at least one liquid outlet 22. By using the heat exchange module 10, the mixture to be separated can be evaporated or condensed. As Figure 1As shown, the solid arrows indicate the flow path of the mixture to be separated, and the dashed arrows indicate the flow path of the heat exchange working fluid. Taking the condensation application as an example, the mixture to be separated not only contains substances with at least two different components, but also the components in the mixture usually exist in both gas and liquid states simultaneously. The gas-phase components in the mixture to be separated can exchange heat with the heat exchange working fluid passing through the shell-side space by using the wall surface of the tube body 12 during the process of passing through the tube-side space, so as to condense and form liquid-phase substances. In addition, after the mixture is condensed, it enters the separation module 20. The separation component can separate the gas-phase substances (such as non-condensable gases) and liquid-phase substances (such as the condensed substances). The non-condensable gases are discharged through the gas outlet 21. The separation component also separates different components in the mixture, and the separated liquid-phase components are discharged through the liquid outlet 22, thus achieving the effects of condensation and component separation of the mixture. By using the evaporation-condensation heat exchange separation device 100 provided in this embodiment, not only can the condensation and component separation of the mixture be realized, and the separation efficiency of the mixture be improved, but also by using the detachable connection between the heat exchange module 10 and the separation module 20, this modular design can facilitate the installation, disassembly and maintenance of the heat exchange separation device 100. At the same time, the modular design can also flexibly configure the heat exchange separation device 100 according to different production needs.

[0024] Optionally, one or more liquid outlets 22 can be provided, which can be flexibly set according to the quantity of the separation products of the mixture.

[0025] It can be understood that the heat exchange module 10 not only has the function of condensation. In the above example, the condensation function of the heat exchange module 10 is introduced. Of course, in other examples, it can also be used for the evaporation of the mixture to be separated. Correspondingly, the types, temperatures, heat exchange temperature differences and other parameters of the heat exchange working fluid are determined according to the specific use of the heat exchange module 10, and this application does not limit them here.

[0026] Optionally, the heat exchange module 10 is provided with a first flange 13, and the separation module 20 is provided with a second flange 28. The first flange 13 and the second flange 28 are detachably connected so that the heat exchange module 10 and the separation module 20 can be assembled or separated from each other. The two flanges can be connected by bolts or the like. The heat exchange module 10 and the separation module 20 are assembled in a flange connection manner, which has the characteristics of simple operation, high connection strength, strong sealing performance, etc., and helps to improve the reliability of the use of the heat exchange separation device.

[0027] In some embodiments, the separation module 20 includes a second housing 23 and a helical vane 24. The helical vane 24 is disposed in the second housing 23. The gas outlet 21 is disposed at the top of the second housing 23. The liquid outlet 22 includes a first outlet 221. The first outlet 221 is disposed at the bottom of the second housing 23 and is disposed corresponding to the helical vane 24. By providing the helical vane 24 in the second housing 23, the gas flowing in the second housing 23 can be turned back under the blocking action of the helical vane 24, condense on the surface of the helical vane 24 and drip, and thus be discharged from the first outlet 221. Therefore, the helical vane 24 can achieve the separation function of the separation module 20, thereby separating a part of the substances in the mixture.

[0028] In some embodiments, the separation module 20 is provided with at least two helical vanes 24. The shape of the helical vane 24 is a sine wave curve, and two helical vanes 24 are arranged staggeredly. By using the helical vane 24 with a sine wave curve shape, on the one hand, it can form a turning-back effect on the gas, which helps part of the gaseous phase substances in the mixture to condense into liquid, and on the other hand, it can avoid forming too much resistance to the gas, resulting in too rapid a drop in air pressure, so that the gas can have sufficient power to reach the gas outlet 21.

[0029] In some embodiments, the separation module 20 further includes a first separator 25. The first separator 25 is disposed downstream of the helical vane 24. The liquid outlet 22 further includes a second outlet 222. The second outlet 222 is disposed at the bottom of the second housing 23 and is located downstream of the first separator 25. By using the first separator 25, part of the gaseous phase components in the mixture can be further condensed and separated to obtain the liquid phase substance of this component. By using the second outlet 222 disposed downstream of the first separator 25, the condensed and separated substances after passing through the first separator 25 can be collected, so as to be distinguished from the substances separated at the helical vane 24, and different substances can be separated by condensation twice successively. Exemplarily, the first separator 25 can be a water baffle and demister, such as a V-shaped water baffle and demister. This water baffle and demister can allow the gas to pass through while intercepting the condensed substances, thereby realizing the separation of different components in the mixture. Of course, in other examples, the first separator 25 can also be a partition net.

[0030] In some embodiments, the separation module 20 further includes a second separator 26. The second separator 26 is disposed downstream of the second outlet 222. The liquid outlet 22 further includes a third outlet 223. The third outlet 223 is disposed at the bottom of the second housing 23 and is located downstream of the second separator 26. The gas outlet 21 is located downstream of the second separator 26. By using the second separator 26, a part of the gas-phase components in the mixture can be further condensed and separated, so as to obtain the liquid-phase substance of this component. By using the third outlet 223 disposed downstream of the second separator 26, the condensed and separated substances after passing through the second separator 26 can be collected, so as to be distinguished from the substances separated at the first separator 25, and different substances can be separated by condensation three times successively. Exemplarily, the second separator 26 may be a partition net, such as a wire mesh dehumidifier. The partition net can not only intercept the condensed substances, thereby increasing the content of the liquid-phase substances in the mixture, and thus play a role in drying and dehumidifying the finally discharged gas. It can be understood that when the first separator 25 also uses a partition net, the mesh number of the partition net of the second separator 26 is larger than that of the first separator 25, so that the substances after passing through the first separator 25 can be further liquefied and separated.

[0031] In some embodiments, the separation module 20 further includes an arc-shaped deflecting member 27. The arc-shaped deflecting member 27 is disposed between the second separator 26 and the gas outlet 21. The arc-shaped deflecting member 27 is bent in a direction away from the second separator 26. By providing the arc-shaped deflecting member 27, the airflow passing through the second separator 26 can impact on the arc-shaped deflecting member 27, thereby generating a greater resistance to the airflow, realizing the last step of liquefaction separation of the gas in the mixture. The components in the mixture that cannot be liquefied and separated after passing through the arc-shaped deflecting member 27 are non-condensable gases, and the non-condensable gases are finally discharged through the gas outlet 21.

[0032] In some embodiments, the tube body 12 is a spiral flat tube. The spiral flat tube can increase the surface area of the tube body 12, thereby increasing the heat exchange area of the substances in the tube-side space and the shell-side space, and thus improving the heat exchange efficiency.

[0033] In some embodiments, a baffle plate 15 is further provided in the heat exchange module 10. The baffle plate 15 is disposed in the shell-side space. The baffle plate 15 is perpendicular to the tube body 12. By using the baffle plate 15, the flow path of the heat exchange working medium can be extended, thereby improving the heat exchange effect.

[0034] Embodiment 2

[0035] Please refer to Figure 2, Embodiment 2 of the present application also provides an evaporation cooling heat exchange separation device 100, which includes a heat exchange module 10 and a rotating blade 30. The heat exchange module 10 includes a third housing 14 and a plurality of tubes 12. The plurality of tubes 12 are disposed in the third housing 14. A tube-side space is formed inside the tubes 12, and the space outside the tube-side space in the third housing 14 forms a shell-side space. The tube-side space is used to introduce a heat exchange working fluid, and the shell-side space is used to introduce a mixture to be separated. The rotating blade 30 is disposed in the shell-side space, and the rotating blade 30 is used to separate the mixture. In this example, the structure of the heat exchange separation device 100 is similar to the structure of the heat exchange module 10 in Embodiment 1, except that the structure of the rotating blade 30 in Embodiment 2 is disposed in the shell-side space of the third housing 14. As Figure 2 shown, the solid arrows indicate the flow path of the mixture to be separated, and the dashed arrows indicate the flow path of the heat exchange working fluid. In this embodiment, the mixture to be separated is introduced into the shell-side space. The mixture to be separated can not only exchange heat with the heat exchange working fluid in the third housing 14, but also be condensed and liquefied under the action of the rotating blade 30, so as to separate different components in the mixture. It can be understood that a gas outlet 21 and a liquid outlet 22 are also provided in the third housing 14. The liquid outlet 22 is used to collect the liquid components of the condensed mixture to be separated, and the gas outlet 21 is used to discharge the gaseous components.

[0036] It can be understood that the tube-side space is usually in a tubular shape and has the characteristics of being easy to clean and not easy to be blocked. The shell-side space is the space formed by the gaps between a plurality of tube bundles, and it is difficult to clean and is prone to blockage. Therefore, when choosing which space to introduce the mixture to be separated and the heat exchange working fluid into, the cleanliness of the introduced substance is usually considered. The one with higher cleanliness is introduced into the shell-side space, and the one with lower cleanliness is introduced into the tube-side space, so as to facilitate regular cleaning and maintenance of the tube-side space. Exemplarily, when using a heat exchange working fluid with lower cleanliness (such as cooling tower water, which contains more impurities), the heat exchange working fluid can be introduced into the tube-side space, and at this time, the heat exchange separation device 100 of Embodiment 2 can be used. When separating a mixture with lower cleanliness or when the viscosity of the mixture is relatively high, the mixture can be introduced into the tube-side space, and at this time, the heat exchange separation device 100 of Embodiment 1 can be used. The cleanliness of the heat exchange working fluid and the mixture to be separated is relative, and how to select specifically between the tube-side and the shell-side can be determined according to the actual situation, and the present application does not limit this.

[0037] In the description of this specification, if descriptions such as "one embodiment", "some examples", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" appear, it means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0038] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present application within the scope of knowledge possessed by those of ordinary skill in the art.

[0039] In the description of this application, if a patent name contains ",", it means a relationship of "and", rather than "or". For example, if the patent name is "a kind of A, B", it means that the content claimed by this application is: the technical solution with the theme name of A and the technical solution with the theme name of B.

Claims

1. An evaporative condensation heat exchange separation device, characterized in that: include The heat exchange module comprises a first shell and a plurality of tubes, wherein the plurality of tubes are arranged in the first shell, a tube-side space is formed in the tubes, and a space outside the tube-side space in the first shell is formed as a shell-side space, wherein the tube-side space is used to introduce a mixture to be separated, and the shell-side space is used to introduce a heat exchange medium; The separation module is detachably connected to the heat exchange module, the separation module is communicated with the tube-side space, and the separation module is provided with a gas outlet and at least one liquid outlet.

2. The evaporative condensation heat exchange separation device according to claim 1, characterized in that: The separation module includes a second shell and a spiral blade, the spiral blade is arranged in the second shell, the gas outlet is arranged at the top of the second shell, and the liquid outlet includes a first outlet, the first outlet is arranged at the bottom of the second shell and corresponds to the spiral blade.

3. The evaporative condensation heat exchange separation device according to claim 2, characterized in that: The separation module further includes a first separation element, which is disposed downstream of the spiral blade. The liquid outlet further includes a second outlet, which is disposed at the bottom of the second shell and is located downstream of the first separation element.

4. The evaporative condensation heat exchange separation device according to claim 3, characterized in that: The separation module further includes a second separation element, which is arranged downstream of the second outlet. The liquid outlet further includes a third outlet, which is arranged at the bottom of the second shell and located downstream of the second separation element. The gas outlet is located downstream of the second separation element.

5. The evaporative condensation heat exchange separation device according to claim 4, characterized in that: The first separation component is a water retaining and foam removal plate, and the second separation component is a wire mesh dehumidifier.

6. The evaporative condensation heat exchange separation device according to claim 4, characterized in that: The separation module further includes an arc-shaped return member, which is disposed between the second separation member and the gas outlet, and is bent in a direction away from the second separation member.

7. The evaporative condensation heat exchange separation device according to any one of claims 2 to 6, characterized in that: The separation module is provided with at least two spiral blades, the shape of the spiral blades is a sine wave curve, and the two spiral blades are staggered.

8. The evaporative condensation heat exchange separation device according to any one of claims 1 to 6, characterized in that: The heat exchange module is provided with a first flange, and the separation module is provided with a second flange. The first flange and the second flange are detachably connected so that the heat exchange module and the separation module can be assembled or separated from each other.

9. The evaporative condensation heat exchange separation device according to any one of claims 1 to 6, characterized in that: The tube body is a spiral flat tube.

10. An evaporative condensation heat exchange separation device, characterized in that: It includes a heat exchange module and a rotary vane. The heat exchange module includes a third shell and a plurality of tube bodies. The plurality of tube bodies are arranged in the third shell. A tube-side space is formed in the tube body. The space outside the tube-side space in the third shell forms a shell-side space. The tube-side space is used to pass a heat exchange medium. The shell-side space is used to pass a mixture to be separated. The rotary vane is arranged in the shell-side space and is used to separate the mixture.

Images