CN215232135U - Flat-plate reboiler - Google Patents
Flat-plate reboiler Download PDFInfo
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- CN215232135U CN215232135U CN202120439800.9U CN202120439800U CN215232135U CN 215232135 U CN215232135 U CN 215232135U CN 202120439800 U CN202120439800 U CN 202120439800U CN 215232135 U CN215232135 U CN 215232135U
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Abstract
The utility model relates to a flat reboiler, include: the device comprises a base body, a cavity structure and a plurality of grooves, wherein the cavity structure is arranged in the base body; the heat exchange plate is arranged on the outer side of the base body; a heat exchange cavity is arranged between the substrate and the heat exchange plate, the heat exchange cavity comprises a plurality of micro-channels which are vertically distributed, an upper converging cavity positioned at the upper part of the micro-channels and a lower converging cavity positioned at the lower part of the micro-channels, and the upper converging cavity and the lower converging cavity are respectively communicated with the cavity structure; the heat source plate is positioned on the outer side of the heat exchange plate, a heat medium cavity is arranged between the heat source plate and the heat exchange plate, and a heat medium used for heat exchange is filled in the heat medium cavity. The flat-plate reboiler is simple in structure, the heat exchange function and the gas-liquid separation function are directly fixed through bolts and do not need to be connected through a pipeline, and therefore sealing performance can be guaranteed; the structure changes the sealing structure of the existing heat exchanger and the vapor-liquid separation tank which are connected by a pipeline.
Description
Technical Field
The utility model belongs to the technical field of the chemical industry equipment technique and specifically relates to a flat reboiler is related to.
Background
A reboiler, also called a reboiler, is a common device in chemical production; it is a device for heating and vaporizing liquid. The industrial equipment heats and vaporizes liquid through the heat exchanger and realizes vapor-liquid separation. Typically, the reboiler is a combination of a heat exchanger and a vapor-liquid separation tank. The heat exchanger is generally made of metal material, graphite material or plastic material; the vapor-liquid separation tank is also generally made of metal materials, plastic materials or metal lining corrosion-resistant materials; the heat exchanger and the vapor-liquid separation tank are generally connected by adopting a pipeline; there are also constructions in which the heat exchange tubes are placed directly in the liquid in the tank, but generally such devices are known as evaporators.
The prior art reboilers all have the following defects: the reboiler made of common metal has poor corrosion resistance and can not meet the production requirement. The reboiler made of special materials, alloys and precious metals has corrosion resistance possibly meeting the production requirements, but is expensive and high in maintenance cost. The reboiler of corrosion-resistant material of metal lining in corrosion-resistant aspect probably satisfies the production needs, but the lining cost is higher, and the lining is not high temperature resistant, or the lining is not resistant negative pressure. The ceramic material (such as silicon carbide) can meet the working conditions of corrosion resistance, high temperature resistance, negative pressure resistance and the like, but the connection of ceramic equipment is difficult.
The reboiler of the prior art is bulky and cannot be adapted to a microchannel production system. In addition, the heat exchanger and the vapor-liquid separation tank are connected through a pipeline, so that the leakage problem exists at the joint.
In order to realize rectification or component separation of some strongly corrosive materials (such as mixed acid liquid of hydrofluoric acid, nitric acid, fluosilicic acid and sulfuric acid) at a high temperature or even under a negative pressure, reboiler equipment in the prior art cannot complete tasks.
In view of this, the utility model provides a flat reboiler changes its conventional use form, adopts flat structure, solves the sealed complex difficult problem of heat exchanger and separator.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flat reboiler to solve the technical problem of heat exchanger and separator seal fit among the prior art.
The utility model provides a technical problem adopt following technical scheme to realize:
a flat-panel reboiler comprising:
the device comprises a base body, a cavity structure and a plurality of grooves, wherein the cavity structure is arranged in the base body;
the heat exchange plate is arranged on the outer side of the base body; a heat exchange cavity is arranged between the substrate and the heat exchange plate, the heat exchange cavity comprises a plurality of micro-channels which are vertically distributed, an upper converging cavity positioned at the upper part of the micro-channels and a lower converging cavity positioned at the lower part of the micro-channels, and the upper converging cavity and the lower converging cavity are respectively communicated with the cavity structure;
the heat source plate is located on the outer side of the heat exchange plate, a heat medium cavity is arranged between the heat source plate and the heat exchange plate, and a heat medium for heat exchange is filled in the heat medium cavity to heat materials in the heat exchange cavity.
In some embodiments, the base body is composed of two planar substrates attached to each other, the planar substrates include an inner cavity and edges surrounding the outer side of the inner cavity, and the cavity structure is formed by butt-joining the edges of the two planar substrates in an opposite direction.
In some embodiments, the planar substrate is provided with an upper connecting hole and a lower connecting hole which are respectively communicated with the upper confluence cavity and the lower confluence cavity; liquid materials in the cavity structure enter the heat exchange cavity from the lower connecting hole, and steam returns to the cavity structure from the upper connecting hole after heating.
In some embodiments, the upper part of the base body is provided with a feed inlet and a steam outlet, and the lower part of the base body is provided with a discharge outlet and a concentrated solution outlet.
The feed inlet is connected with an external raw material supply pipeline; the steam outlet is connected with an external steam channel. The discharge port is connected with an external raw material supply pipeline; the concentrated solution outlet is connected with an external concentrated solution receiving channel.
In some embodiments, the heat exchange chamber is disposed on an outer side of the base body, or on an inner side of the heat exchange plate.
In some embodiments, the heat medium chamber is disposed on an outer side of the heat exchange plate, or on an inner side of the heat source plate.
In some embodiments, the microchannels are arranged vertically, and the material flows from bottom to top; the heat medium cavity comprises a plurality of heat medium channels which are mutually connected end to end, and the walking direction of the heat medium channels is vertical to that of the micro-channels.
In some embodiments, the path of travel of the microchannel is in a bow-shaped configuration.
In some embodiments, the micro-channels are grooves having a width of 0.1 to 5mm and a depth of 1 to 10 mm.
In some embodiments, the cross-sectional dimension of the heat medium channel is 1 to 10mm × 5 to 20 mm.
In some embodiments, the heat source plate is provided with a heat medium inlet and a heat medium outlet respectively communicated with the heat source.
In some embodiments, when the reboiler is used for material concentration, the steam outlet is connected to a vacuum system to create a negative pressure within the cavity of the matrix.
In some embodiments, when the reboiler is used for feed fractionation: the feed inlet of the matrix is connected with the discharge outlet at the bottom of the rectifying tower; the steam outlet of the matrix is connected with the steam inlet at the bottom of the rectifying tower; the discharge hole of the base body is connected with the material output channel.
The utility model has the advantages that:
(1) the flat plate type reboiler has simple structure, the heat exchange function and the gas-liquid separation function are directly fixed through the bolts, and the connection through the pipeline is not needed, so the sealing performance can be ensured; the structure changes the sealing structure of the existing heat exchanger and the vapor-liquid separation tank which are connected by a pipeline.
(2) The flat-plate reboiler of the utility model adopts a micro-channel structure, which increases the contact area of materials and has high heat transfer efficiency; and energy is saved.
(3) The utility model has compact structure, and compared with the prior art, the utility model has small volume and light weight under the condition of the same heat exchange efficiency; moreover, the space occupation ratio is small, and the method is suitable for compact production systems (such as skid-mounted equipment).
(4) The utility model can be used by single piece, or multiple pieces can be superposed; can be suitable for laboratory devices to large-scale industrial production devices. Moreover, the design parameters and the use effect are completely equal from the completion of laboratory tests to industrial mass production.
(5) The utility model discloses the device is fit for various materials, is adapted to various process in other words! When the inner and outer members are made of different materials, the sealing and connection (bonding or bolting) between each other is very simple. When the inner and outer members are made of the same material, sealing and connection can even be achieved by welding.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows the utility model: a schematic structure diagram of a first flat-plate reboiler;
fig. 2 shows the utility model: a schematic view of the base of the first flat-plate reboiler;
fig. 3 shows the utility model: a schematic view of an inside plan view of a base of a first flat-plate reboiler;
fig. 4 shows the utility model: a schematic structural diagram of a heat exchange plate of a first flat-plate reboiler;
fig. 5 shows the utility model: schematic inside plan view of heat exchange plates of the first flat-plate reboiler;
fig. 6 shows the utility model: a schematic view of a heat source plate of a first flat-plate reboiler;
fig. 7 is the utility model: a schematic view of an inner side plan structure of a heat source plate of the first flat-plate reboiler;
fig. 8 is the utility model: second plate type reboiler structure schematic diagram
Fig. 9 is the utility model: a schematic view of the base of a second flat-plate reboiler;
fig. 10 shows the present invention: a schematic view of the inside plan of the base of the second flat-plate reboiler;
fig. 11 is the utility model: a schematic view of an outside plan view of a base of a second flat-plate reboiler;
fig. 12 shows the present invention: a schematic structural diagram of a heat exchange plate of a second flat-plate reboiler;
fig. 13 is the utility model discloses: the outer side plan structure schematic diagram of the heat exchange plate of the second flat-plate reboiler;
fig. 14 shows the present invention: a schematic diagram of a heat source plate of a second flat-plate reboiler;
fig. 15 shows the present invention: the second flat-plate reboiler has a schematic plan view of a heat source plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-7: a flat reboiler 1 comprising: a base body 100, a heat exchange plate 200, and a heat source plate 300. The base body 100 is provided with a cavity structure 1001, and the cavity structure 1001 is used for storing liquid materials and for gas-liquid separation. The base 100 in this embodiment is composed of two planar substrates 1002 attached to each other; the planar substrate 1002 includes an inner cavity 1023 and an edge 1024 surrounding the inner cavity, and the cavity structure 1001 is formed by abutting the edges 1024 of the two planar substrates 1002. A heat exchange plate 200 disposed at an outer side of the base body 100; a heat exchange chamber 2001 is provided between the base body 100 and the heat exchange plate 200. In order to improve the efficiency, the heat exchange chamber 2001 is provided with a plurality of micro-channels 2002 which are vertically distributed, and materials flow from bottom to top; in this embodiment, the path of the microchannel 2002 is in a zigzag shape. Meanwhile, the heat exchange chamber 2001 needs to be communicated with the substrate 100 to form an internal circulation, so that an upper confluence chamber 2003 is arranged at the upper part of the micro-channel 2002, a lower confluence chamber 2004 is arranged at the lower part of the micro-channel 2002, and the liquid is communicated with the substrate 100 through the upper confluence chamber and the lower confluence chamber to circulate. An upper connecting hole 10021 and a lower connecting hole 10022 which are respectively communicated with the upper confluence cavity 2003 and the lower confluence cavity 2004 are formed on the plane substrate 1002; the liquid material in the cavity structure 1001 enters the heat exchange chamber 2001 from the lower connection hole 10022, and the heated steam returns to the cavity structure 1001 from the upper connection hole 10021. The heat exchange chamber 2001 may be located on the outer side of the base 100 or on the inner side of the heat exchange plate 200. Which in this embodiment is arranged on the inner side of the heat exchanger plate 200. The micro-channel 2002 in this embodiment is a groove, and the design parameters thereof can be selected from a width of 0.1-5 mm and a depth of 1-10 mm.
In order to vaporize the liquid in the microchannel 2002 for gas-liquid separation, a heat source needs to be provided. Therefore, a structure for providing a heat source, in this embodiment, a heat source plate 300 is disposed on the outer side of the heat exchange plate 200, and the heat source plate 300 is located on the outer side of the heat exchange plate 200 to provide heat energy to the heat exchange plate 200. A heat medium cavity 3001 is provided between the heat source plate 300 and the heat exchange plate 200, and when in use, the heat medium cavity 3001 is filled with a heat medium to heat the material in the heat exchange cavity 2001. The position of the heat medium chamber 3001 may be disposed on the outer side of the heat exchange plate 200 or on the inner side of the heat source plate 300, in this embodiment on the inner side of the heat source plate 300. In order to further improve the heat exchange efficiency, the heat medium chamber 3001 includes a plurality of heat medium passages 3002 connected end to end. The traveling direction of the heat medium channel 3002 in the present embodiment is perpendicular to the traveling direction of the microchannel 2002, which can further improve the efficiency of heat exchange. The cross-sectional dimension of the heat medium channel 3002 can be selected within the range of 1 to 10mm × 5 to 20 mm. The heat source plate 300 is provided with a heat medium inlet 3003 and a heat medium outlet 3004.
In this embodiment, the base 100 is provided with a feed inlet 1003 and a vapor outlet 1004 at the upper part thereof, and a discharge outlet 1005 and a concentrated solution outlet 1006 at the lower part thereof. Such an opening arrangement for the base body 100 contributes to energy saving.
In particular applications, feed port 1003 is connected to an external source material supply line to provide liquid. The steam outlet 1004 is connected to an external steam channel. The discharge port 1005 is connected to an external raw material supply pipe. The concentrate outlet 1006 is connected to an external concentrate receiving channel.
The substrate 100, the heat exchange plate 200 and the heat source plate 300 in this embodiment are made of silicon carbide. Wherein the peripheries of the heat source plates 300 are fastened 400 by bolts so that the base body 100 and the heat exchange plate 200 are sandwiched between the two heat source plates 300 and a sealing structure is formed.
Example 2
See fig. 8-15 for an illustration: a flat reboiler 2 comprising: a base body 100, a heat exchange plate 200, and a heat source plate 300. The base body 100 is provided with a cavity structure 1001, and the cavity structure 1001 is used for storing liquid materials and for gas-liquid separation. The base 100 in this embodiment is composed of two planar substrates 1002 attached to each other; the planar substrate 1002 includes an inner cavity 1023 and an edge 1024 surrounding the inner cavity, and the cavity structure 1001 is formed by abutting the edges of the two planar substrates 1002. A heat exchange plate 200 disposed at an outer side of the base body 100; a heat exchange chamber 2001 is provided between the base body 100 and the heat exchange plate 200. In order to improve the efficiency, the heat exchange chamber 2001 is provided with a plurality of micro-channels 2002 which are vertically distributed, and materials flow from bottom to top; in this embodiment, the path of the microchannel 2002 is in a zigzag shape. Meanwhile, the heat exchange chamber 2001 needs to be communicated with the substrate 100 to form an internal circulation, so that an upper confluence chamber 2003 is arranged at the upper part of the micro-channel 2002, a lower confluence chamber 2004 is arranged at the lower part of the micro-channel 2002, and the liquid is communicated with the substrate 100 through the upper confluence chamber and the lower confluence chamber to circulate. An upper connecting hole 10021 and a lower connecting hole 10022 which are respectively communicated with the upper confluence cavity 2003 and the lower confluence cavity 2004 are formed on the plane substrate 1002; the liquid material in the cavity structure 1001 enters the heat exchange chamber 2001 from the lower connection hole 10022, and the heated steam returns to the cavity structure 1001 from the upper connection hole 10021. The heat exchange chamber 2001 may be located on the outer side of the base 100 or on the inner side of the heat exchange plate 200. In this embodiment, on the outer side of the base 100. The micro-channel 2002 in this embodiment is a groove, and the design parameters thereof can be selected from a width of 0.1-5 mm and a depth of 1-10 mm.
In order to vaporize the liquid in the microchannel 2002 for gas-liquid separation, a heat source needs to be provided. Therefore, a structure for providing a heat source, in this embodiment, a heat source plate 300 is disposed on the outer side of the heat exchange plate 200, and the heat source plate 300 is located on the outer side of the heat exchange plate 200 to provide heat energy to the heat exchange plate 200. A heat medium cavity 3001 is provided between the heat source plate 300 and the heat exchange plate 200, and when in use, the heat medium cavity 3001 is filled with a heat medium to heat the material in the heat exchange cavity 2001. The position of the heat medium cavity 3001 may be disposed on the outer side of the heat exchange plate 200, or on the inner side of the heat source plate 300, in this embodiment, on the outer side of the heat exchange plate 200. In order to further improve the heat exchange efficiency, the heat medium chamber 3001 includes a plurality of heat medium passages 3002 connected end to end. The traveling direction of the heat medium channel 3002 in the present embodiment is perpendicular to the traveling direction of the microchannel 2002, which can further improve the efficiency of heat exchange. The cross-sectional dimension of the heat medium channel 3002 can be selected within the range of 1 to 10mm × 5 to 20 mm. The heat source plate 300 is provided with a heat medium inlet 3003 and a heat medium outlet 3004.
In this embodiment, the base 100 is provided with a feed inlet 1003 and a vapor outlet 1004 at the upper part thereof, and a discharge outlet 1005 and a concentrated solution outlet 1006 at the lower part thereof. Such an opening arrangement for the base body 100 contributes to energy saving.
In particular applications, feed port 1003 is connected to an external source material supply line to provide liquid. The steam outlet 1004 is connected to an external steam channel. The discharge port 1005 is connected to an external raw material supply pipe. The concentrate outlet 1006 is connected to an external concentrate receiving channel.
The substrate 100, the heat exchange plate 200 and the heat source plate 300 in this embodiment are made of silicon carbide. Wherein the peripheries of the heat source plates 300 are fastened 400 by bolts so that the base body 100 and the heat exchange plate 200 are sandwiched between the two heat source plates 300 and a sealing structure is formed.
Application example 1
A flat-plate reboiler is used for material concentration.
Specifically, the method comprises the following steps:
referring to FIG. 1, the vapor outlet 1004 of the substrate 100 is connected to a vacuum system to create a negative pressure within the cavity of the substrate 100.
Application example 2
A flat-plate reboiler is used for material rectification and separation.
Specifically, the method comprises the following steps:
referring to FIG. 8: a feed inlet 1003 of the matrix 100 is connected with a discharge outlet at the bottom of the rectifying tower; the vapor outlet 1004 of the base 100 is connected to the bottom vapor inlet of the rectification column; the discharge hole 1005 of the base body is connected with the material output channel.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A flat-panel reboiler comprising:
the device comprises a base body, a cavity structure and a plurality of grooves, wherein the cavity structure is arranged in the base body;
the heat exchange plate is arranged on the outer side of the base body; a heat exchange cavity is arranged between the substrate and the heat exchange plate, the heat exchange cavity comprises a plurality of micro-channels which are vertically distributed, an upper converging cavity positioned at the upper part of the micro-channels and a lower converging cavity positioned at the lower part of the micro-channels, and the upper converging cavity and the lower converging cavity are respectively communicated with the cavity structure;
the heat source plate is located on the outer side of the heat exchange plate, a heat medium cavity is arranged between the heat source plate and the heat exchange plate, and a heat medium for heat exchange is filled in the heat medium cavity to heat materials in the heat exchange cavity.
2. The flat-plate reboiler of claim 1, wherein the base comprises two flat plates attached to each other, the flat plates include an inner cavity and an edge surrounding the outer side of the inner cavity, and the cavity structure is formed by abutting the edges of the two flat plates.
3. The flat-plate reboiler of claim 2 wherein the planar base plate has upper and lower connection holes communicating with the upper and lower converging chambers, respectively; liquid materials in the cavity structure enter the heat exchange cavity from the lower connecting hole, and steam returns to the cavity structure from the upper connecting hole after heating.
4. The flat-plate reboiler of claim 1 wherein the base has a feed inlet and a vapor outlet at an upper portion thereof and a discharge outlet and a concentrate outlet at a lower portion thereof.
5. The flat reboiler of claim 1 or 2, wherein the heat exchange chambers are disposed on an outside face of the base or on an inside face of the heat exchange plates; the heat medium cavity is arranged on the outer side face of the heat exchange plate or on the inner side face of the heat source plate.
6. The flat-plate reboiler of claim 1, wherein the microchannels are vertically arranged and feed flows from bottom to top; the heat medium cavity comprises a plurality of heat medium channels which are mutually connected end to end, and the walking direction of the heat medium channels is vertical to that of the micro-channels.
7. The flat-plate reboiler of claim 6, wherein the microchannels are grooves having a width of 0.1 to 5mm and a depth of 1 to 10 mm;
the cross-sectional dimension of the heat medium channel is 1-10 mm multiplied by 5-20 mm.
8. The flat-plate reboiler of claim 1 wherein the heat source plate is provided with a heat medium inlet and a heat medium outlet respectively communicating with the heat source.
9. The flat reboiler of claim 4, wherein the vapor outlet is connected to a vacuum system to create a negative pressure within the cavity of the base when the reboiler is used for material concentration.
10. The flat-plate reboiler of claim 4 wherein, when the reboiler is used for fractionation of a material: the feed inlet of the matrix is connected with the discharge outlet at the bottom of the rectifying tower; the steam outlet of the matrix is connected with the steam inlet at the bottom of the rectifying tower; the discharge hole of the base body is connected with the material output channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120439800.9U CN215232135U (en) | 2021-03-01 | 2021-03-01 | Flat-plate reboiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120439800.9U CN215232135U (en) | 2021-03-01 | 2021-03-01 | Flat-plate reboiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215232135U true CN215232135U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120439800.9U Active CN215232135U (en) | 2021-03-01 | 2021-03-01 | Flat-plate reboiler |
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| CN (1) | CN215232135U (en) |
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2021
- 2021-03-01 CN CN202120439800.9U patent/CN215232135U/en active Active
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