CN114870429B - Wall thickness variable continuous extraction device cylinder and continuous extraction device - Google Patents
Wall thickness variable continuous extraction device cylinder and continuous extraction device Download PDFInfo
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- CN114870429B CN114870429B CN202210440120.8A CN202210440120A CN114870429B CN 114870429 B CN114870429 B CN 114870429B CN 202210440120 A CN202210440120 A CN 202210440120A CN 114870429 B CN114870429 B CN 114870429B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0203—Solvent extraction of solids with a supercritical fluid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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Abstract
The invention discloses a variable wall thickness continuous extraction device cylinder and a continuous extraction device, wherein the cylinder comprises a cylinder end part, an inner cylinder, a thickening cylinder and a fluid channel; the end part of the cylinder body is connected with the inner cylinder, the outer wall of the inner cylinder or the outer wall of the assembled thickened cylinder is provided with thickened cylinders which are shortened layer by layer, and the length of the thickened cylinder arranged at the outermost layer of the extraction section is shortest; the inner cylinder and the outer wall of the inner cylinder are assembled together layer by layer, and the wall of the thickened cylinder is provided with a fluid channel which corresponds to the fluid inlet and outlet of the emptying section, the step-by-step boosting section, the extraction section, the step-by-step depressurization section and the pumping-back section of the inner cylinder cavity, so that different fluid pressures of all the sections in the inner cylinder cavity are formed. According to the invention, the wall thickness-variable cylinder is designed according to the difference of medium pressure in the inner cavity of the continuous extractor, so that the material is saved, the structure is simple, and the processing and the manufacturing are convenient.
Description
Technical Field
The invention relates to the field of chemical separation and bioengineering mechanical equipment, in particular to a wall thickness-variable continuous extractor cylinder and a continuous extractor.
Background
Supercritical/subcritical fluid extraction technology is being widely applied to fields of food, medicine, chemical industry and the like as an emerging green separation technology, and continuous extraction technology is receiving more and more attention, and the key of continuous extraction technology is the design and processing of continuous extractors.
The existing pressure containers with the same material only have the condition that the wall thickness of the container changes along with the change of the diameter of the container, and have no condition that the wall thickness of the container changes along with the change of the diameter of the container, because the pressure in the same pressure container is the same.
However, in the patent publication CN100427172C, the patent name is "a high-pressure ultrahigh-pressure continuous solid material extraction and sterilization apparatus", a pressure-bearing cylinder in the high-pressure ultrahigh-pressure continuous solid material extraction and sterilization apparatus is disclosed; the patent name of the extractor cylinder in the supercritical fluid continuous extraction and separation device system is disclosed in the patent publication No. CN110152350B, wherein the patent name is a supercritical fluid continuous extraction and separation device system and an extraction and separation process; in patent publication number CN110237561B, the invention patent entitled "subcritical fluid continuous isobaric extraction separation device system and extraction separation process" discloses an extractor cylinder in a subcritical fluid continuous isobaric extraction separation device system, wherein the pressure born by the extractor cylinder or the extractor cylinder is variable in the same diameter bearing cylinder. If the pressure vessel which is unevenly stressed is designed into a structure with equal wall thickness according to the design concept of the existing pressure vessel, the problems of material waste, heavy equipment and the like are caused.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a wall thickness-variable continuous extractor structure, wherein different pressure-bearing sections of the continuous extractor have different wall thicknesses, so that materials are saved, and the continuous extractor is convenient to process.
In order to achieve the above object, the present invention is realized by the following technical scheme:
the invention provides a wall thickness-variable continuous extraction device cylinder body, which comprises a cylinder body end part, an inner cylinder, a thickening cylinder and a fluid channel; the end part of the cylinder body is connected with the two ends of the inner cylinder, an emptying section, a step-by-step boosting section with more than one step, an extraction section, a step-by-step depressurization section with the same step-by-step boosting stage number and a withdrawal section are arranged in the inner cavity of the inner cylinder along the axis of the inner cylinder, the length of the thickening cylinder arranged at the outermost layer of the extraction section is shortest, wherein the thickening cylinder is shortened layer by layer from the step-by-step boosting section to the step-by-step depressurization section, and the thickening cylinder is assembled on the outer wall of the inner cylinder or the outer wall of the thickening cylinder assembled together; the total wall thickness of the thickened cylinder assembled with the inner cylinder and the outer wall of the inner cylinder is suitable for the strength requirement under the action of the pressure of the inner cavity of the continuous extractor; the inner cylinder and the outer wall of the inner cylinder are assembled together layer by layer, and the wall of the thickened cylinder is provided with a fluid channel which corresponds to the fluid inlet and outlet of the emptying section, the step-by-step boosting section, the extraction section, the step-by-step depressurization section and the pumping-back section of the inner cylinder cavity, so that different fluid pressures of all the sections in the inner cylinder cavity are formed.
As a further implementation, the inner cylinder is a one-layer or multi-layer binding or nesting or winding structure.
As a further implementation manner, the thickening cylinder is assembled on the outer wall of the inner cylinder or the thickening cylinder of the previous layer by one or more layers of binding or sleeving or winding methods.
As a further implementation mode, the inner layer of the inner cylinder is made of a corrosion-resistant material, and other layers of the inner cylinder and each layer of the thickening cylinder are made of high-strength materials.
As a further implementation manner, one end of the thickening cylinder is welded with the outer wall of the thickening cylinder or the inner cylinder positioned in the inner layer of the thickening cylinder, and the other end is a free end.
As a further implementation mode, a first-layer thickening cylinder I is welded on the outer wall of the inner cylinder corresponding to the first-stage boosting section to the last-stage depressurization section, a second-layer thickening cylinder II is welded on the outer wall of the first-layer thickening cylinder corresponding to the second-stage depressurization section, and the like, and an n-layer thickening cylinder n is welded on the outer wall of the thickening cylinder n-1 corresponding to the n-th-stage boosting section to the first-stage depressurization section.
As a further implementation, the extraction section corresponds to the barrel section having the thickest thickness.
As a further implementation, the end of the cylinder is provided with an annular flange or a toothed flange.
As a further implementation mode, the variable wall thickness continuous extractor cylinder at the end part of the annular flange cylinder is provided with a split clamp and a stock bin, or the variable wall thickness continuous extractor cylinder at the end part of the tooth-shaped flange cylinder is provided with a tooth-meshed clamp and a stock bin, so that the continuous extractor is formed.
The beneficial effects of the invention are as follows:
the wall thickness-variable continuous extraction device cylinder body is a pressure-bearing container, the wall thickness-variable cylinder body is designed according to the difference of medium pressure in the inner cavity of the continuous extraction device, the inner diameter of the cylinder body is unchanged, only the outer diameter is changed, a great amount of materials are saved, meanwhile, the cylinder body adopts one or more layers of binding or sleeving or winding structures, the materials of an inner layer cylinder and an outer layer cylinder can be different, the innermost layer material of the inner cylinder which contacts with the medium adopts corrosion-resistant precious materials, and other layers of the inner cylinder and each layer of the thickened cylinder adopt cheap high-strength materials; simple structure and convenient processing and manufacturing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic diagram of a structure in accordance with one or more embodiments of the invention;
FIG. 2 is a schematic view of another construction of FIG. 1A;
FIG. 3 is another schematic view of structure B in FIG. 1;
fig. 4 is another structural schematic diagram of C in fig. 1.
Wherein, 1, barrel end, 2, inner barrel, 2-1, inner barrel first layer, 2-2, inner barrel second layer, 2-3, inner barrel third layer, 3, thickening barrel first, 3-1, thickening barrel first layer, 3-2, thickening barrel first second layer, 3-3, thickening barrel first third layer, 4, thickening barrel second, 4-2, thickening barrel second layer, 4-3, thickening barrel second third layer, 5, thickening barrel third, 5-1, thickening barrel third first layer, 5-2, thickening barrel third second layer, 5-3, thickening barrel third layer, 6, thickening barrel fourth, 7, fluid passage, I, evacuation section, R1, first stage pressure increasing section, R2, second stage pressure increasing section, R3, third stage pressure increasing section, E, extraction section, D1, first stage pressure decreasing section, D2, second stage pressure decreasing section, D3, third stage pressure decreasing section, O, pumping section.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular forms also are intended to include the plural forms unless the present invention clearly dictates otherwise, and furthermore, it should be understood that when the terms "comprise" and/or "include" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
embodiment one:
the embodiment provides a wall thickness-variable continuous extraction device cylinder structure, which is shown in figure 1 and comprises a cylinder end 1, an inner cylinder 2, a thickening cylinder I3, a thickening cylinder II 4, a thickening cylinder III 5, a thickening cylinder IV 6 and a fluid channel 7;
the inner cylinder 2 is made of 316L stainless steel and is a single-layer cylinder, and two ends of the inner cylinder 2 are open; the material of the end part 1 of the cylinder is 316L stainless steel, the opening end of the end part 1 of the cylinder is provided with an annular flange or a toothed flange, the connecting end of the end part 1 of the cylinder and the inner cylinder 2 are connected with the two ends of the inner cylinder 2 through welding, the inner cavity of the inner cylinder is provided with an emptying section I, a first-stage boosting section R1 to a third-stage boosting section R3 along the axis of the inner cylinder, a third-stage step-by-step boosting section, an extraction section E, a first-stage boosting section D1 to a third-stage boosting section D3, a third-stage step-by-step boosting section and a pumping-back section O, the materials of the first thickening section 3, the second thickening section 4, the third thickening section 5 and the fourth thickening section 6 are Q345R low alloy high-strength steel, and are all of a layer structure, and according to the manufacturing method of a binding or sleeving container, the outer walls of the inner cylinder from the first-stage boosting section R1 to the third thickening section D3, the thickened section from the second-stage boosting section R2 to the thickened section 3 of the second thickening section 4, the thickened section from the third-stage boosting section R3 to the first thickening step-1, and the thickened section 5 are bound or sleeved with the outer wall of the thickened section 6;
the end part of one end of the first thickening cylinder 3 is connected with the outer wall surface of the inner cylinder 2, the end part of one end of the second thickening cylinder 4 is connected with the outer wall surface of the first thickening cylinder 3, the end part of one end of the third thickening cylinder 5 is connected with the outer wall surface of the second thickening cylinder 4, the end part of one end of the fourth thickening cylinder 6 is connected with the outer wall surface of the third thickening cylinder 5 through welding, and the end parts of the other ends of the first thickening cylinder 3, the second thickening cylinder 4, the third thickening cylinder 5 and the fourth thickening cylinder 6 are free ends, so that thermal stress caused by thermal expansion and cold contraction is prevented. The inner cylinder and the wall of the thickening cylinder assembled together layer by layer are provided with through holes, 316L stainless steel pipes penetrate through the through holes to form fluid channels, one ends of the stainless steel pipes are welded with the inner wall of the inner cylinder 2, and the other ends of the stainless steel pipes are respectively corresponding to fluid inlet and outlet of an emptying section, a step-by-step boosting section, an extraction section, a step-by-step depressurization section and a pumping-back section of the inner cavity of the inner cylinder to form different fluid pressures of each section in the inner cavity of the inner cylinder.
The wall thickness variable extraction connecting cylinder body at the end part of the annular flange cylinder body is provided with a split type clamp and a storage bin, or the wall thickness variable extraction connecting cylinder body at the end part of the tooth-shaped flange cylinder body is provided with a tooth-meshed type clamp and a storage bin, so that the extraction connecting device is formed.
Embodiment two:
the embodiment provides a wall thickness variable continuous extractor structure, which comprises a cylinder end 1, an inner cylinder 2, a thickening cylinder I3, a thickening cylinder II 4, a thickening cylinder III 5, a thickening cylinder IV 6 and a fluid channel 7 as shown in figures 1, 2, 3 and 4. The inner cylinder 2, the first thickening cylinder 3, the second thickening cylinder 4, the third thickening cylinder 5 and the fourth thickening cylinder 6 are all in three-layer binding or sleeving or winding structures, namely an inner cylinder first layer 2-1, an inner cylinder second layer 2-2 and an inner cylinder third layer 2-3 which form the inner cylinder 2, a thickening cylinder first layer 3-1, a thickening cylinder first second layer 3-2 and a thickening cylinder first third layer 3-3 which form the thickening cylinder first 3, a thickening cylinder second layer 4-2 and a thickening cylinder second third layer 4-3 which form the thickening cylinder second 4, a thickening cylinder third first layer 5-1, a thickening cylinder third second layer 5-2 and a thickening cylinder third layer 5-3 which form the thickening cylinder third 5, a thickening cylinder fourth first layer, a thickening cylinder fourth second layer and a thickening cylinder fourth third layer which form the thickening cylinder fourth 6. The end part 1 of the cylinder body and the first layer 2-1 of the inner cylinder 2 are made of 316L stainless steel, and the other two layers of the inner cylinder 2 and the layers from the first thickening cylinder 3 to the fourth thickening cylinder 6 are made of Q345R low alloy high strength steel; the cylinder end 1 is provided with an annular flange or a toothed flange, the connecting end of the cylinder end 1 and the inner cylinder 2 is provided with a welding step structure, the first layer 2-1 of the inner cylinder 2 is manufactured into a cylinder and then is in butt welding with the cylinder end 1, and then the inner cylinder 2 is manufactured by wrapping, sleeving or winding the second layer 2-2 of the inner cylinder and the third layer 2-3 of the inner cylinder layer by layer according to a manufacturing method of a multi-layer wrapping, sleeving or winding container and in butt welding with a welding step of the cylinder end 1; the inner cavity of the inner barrel is provided with an emptying section I, a first-stage boosting section R1 to a third-stage boosting section R3, a total three-stage step-by-step boosting section, an extraction section E, a total three-stage step-by-step reducing section of a first-stage reducing section D1 to a third-stage reducing section D3 and a withdrawal section O along the axis of the inner barrel. Continuously wrapping or sleeving or winding the outer walls of the inner cylinders of the first-stage boosting section R1 to the third-stage depressurization section D3 layer by layer according to a manufacturing method of a multi-layer wrapping or sleeving or winding container, namely a first layer 3-1 of a thickening cylinder, a second layer 3-2 of the thickening cylinder and a third layer 3-3 of the thickening cylinder to manufacture a thickening cylinder I3; the outer wall of a thickening cylinder I3 from the second-stage pressure increasing section R2 to the second-stage pressure decreasing section D2 is wrapped or sleeved or wound with a thickening cylinder II first layer, a thickening cylinder II second layer 4-2 and a thickening cylinder II third layer 4-3 layer by layer to prepare a thickening cylinder II 4; the outer wall of a thickening barrel II 4 from the third-stage pressure increasing section R3 to the first-stage pressure decreasing section D1 is wrapped or sleeved or wound with a thickening barrel III first layer 5-1, a thickening barrel III second layer 5-2 and a thickening barrel III third layer 5-3 layer by layer to prepare a thickening barrel III 5; the outer wall of a thickening barrel III 5 of the extraction section is wrapped or sleeved or wound with a first layer of a thickening barrel IV, a second layer of the thickening barrel IV and a third layer of the thickening barrel IV layer by layer to form a thickening barrel IV 6; the end part of one end of the first thickening cylinder 3 is connected with the outer wall surface of the inner cylinder 2, the end part of one end of the second thickening cylinder 4 is connected with the outer wall surface of the first thickening cylinder 3, the end part of one end of the third thickening cylinder 5 is connected with the outer wall surface of the second thickening cylinder 4, the end part of one end of the fourth thickening cylinder 6 is connected with the outer wall surface of the third thickening cylinder 5 through welding, and the end parts of the other ends of the first thickening cylinder 3, the second thickening cylinder 4, the third thickening cylinder 5 and the fourth thickening cylinder 6 are free ends. The inner cylinder and the wall of the thickening cylinder assembled together layer by layer are provided with through holes, 316L stainless steel pipes penetrate through the through holes to form fluid channels, one ends of the stainless steel pipes are welded on the inner wall of the inner cylinder 2, and the other ends of the stainless steel pipes are respectively corresponding to fluid inlet and outlet of an emptying section, a step-by-step boosting section, an extraction section, a step-by-step depressurization section and a pumping-back section of the inner cavity of the inner cylinder to form different fluid pressures of each section in the inner cavity of the inner cylinder.
It will be appreciated that in other embodiments, the inner barrel may be a multi-layer structure with one layer or other layers, and may be specifically set according to practical requirements. In this embodiment, the inner cylinder 2 is configured as a 3-layer structure of an inner cylinder first layer 2-1, an inner cylinder second layer 2-2, and an inner cylinder third layer 2-3.
It will be appreciated that in other embodiments, the number of layers of the thickening cylinder may be one or more. As shown in fig. 1, in the present embodiment, the thickening cylinders are configured as 4 layers of a thickening cylinder one 3, a thickening cylinder two 4, a thickening cylinder three 5, and a thickening cylinder four 6. Can be specifically set according to actual requirements.
It will be appreciated that in other embodiments, each layer of the thickening barrel may be a layer of structure or a multi-layer wrapped or sleeved or wound structure, and may be specifically arranged according to practical requirements. As shown in fig. 3 and 4, in the present embodiment, the first thickening cylinder 3 is formed by wrapping or sleeving or winding the first thickening cylinder layer 3-1, the second thickening cylinder layer 3-2 and the third thickening cylinder layer 3-3 layer by layer, the second thickening cylinder 4 is formed by wrapping or sleeving or winding the second thickening cylinder layer first layer, the second thickening cylinder layer 4-2 and the third thickening cylinder layer 4-3 layer by layer, the third thickening cylinder 5 is formed by wrapping or sleeving or winding the third thickening cylinder layer 5-1, the third thickening cylinder layer 5-2 and the third thickening cylinder layer 5-3 layer by layer, and the fourth thickening cylinder 6 is formed by wrapping or sleeving or winding the third thickening cylinder layer first layer, the fourth thickening cylinder layer second layer and the fourth thickening cylinder layer third layer by layer.
The wall thickness variable extraction connecting cylinder body at the end part of the annular flange cylinder body is provided with a split type clamp and a storage bin, or the wall thickness variable extraction connecting cylinder body at the end part of the tooth-shaped flange cylinder body is provided with a tooth-meshed type clamp and a storage bin, so that the extraction connecting device is formed.
Finally, it is pointed out that relational terms such as first and second are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The wall thickness-variable continuous extraction device cylinder is characterized by comprising a cylinder end part, an inner cylinder, a thickening cylinder and a fluid channel; the end part of the cylinder body is connected with the two ends of the inner cylinder, the inner cavity of the inner cylinder is provided with an emptying section, a step-by-step boosting section with more than one step, an extraction section, a step-by-step depressurization section with the same step-by-step boosting stage number and a drawing-back section along the axis of the inner cylinder, the outer wall of the inner cylinder or the outer wall of the assembled thickened cylinder is provided with a thickened cylinder which is shortened layer by layer, and the length of the thickened cylinder arranged at the outermost layer of the extraction section is shortest; the total wall thickness of the thickened cylinder assembled with the inner cylinder and the outer wall of the inner cylinder is suitable for the strength requirement under the action of the pressure of the inner cavity of the continuous extractor; the inner cylinder and the outer wall of the inner cylinder are assembled together layer by layer, the cylinder wall of the thickening cylinder is provided with a fluid channel, and the fluid channel corresponds to the fluid inlet and outlet of the emptying section, the step-by-step boosting section, the extraction section, the step-by-step depressurization section and the drawing-back section of the inner cylinder cavity, so that different fluid pressures of all the sections in the inner cylinder cavity are formed.
2. The wall thickness variable extraction cartridge of claim 1 wherein the inner cartridge is one or more layers of a wrapped or sleeved or wrapped construction.
3. A wall thickness variable extraction cartridge according to claim 1 wherein the thickened cartridge is mounted to the outer wall of the inner cartridge or a preceding layer of thickened cartridge by one or more layers of wrapping or nesting or winding.
4. The wall thickness variable extraction barrel as claimed in claim 1, wherein the inner layer of the inner barrel is made of corrosion-resistant material, and the other layers and the thickened layers of the inner barrel are made of high-strength materials.
5. A wall thickness variable extraction cartridge body as claimed in claim 1 wherein one end of the thickened cartridge is welded to the outer wall of the thickened cartridge or inner cartridge at its inner layer and the other end is a free end.
6. The wall thickness variable continuous extractor cylinder according to claim 1, wherein a first layer of thickening cylinder I is welded on the outer wall of the inner cylinder corresponding to the first stage pressure increasing section to the last stage pressure decreasing section, a second layer of thickening cylinder II is welded on the outer wall of the thickening cylinder I corresponding to the second stage pressure increasing section to the second stage pressure decreasing section, and so on, and an n layer of thickening cylinder n is welded on the outer wall of the thickening cylinder n-1 corresponding to the n stage pressure increasing section to the first stage pressure decreasing section.
7. A wall thickness variable extraction cartridge as claimed in claim 1 wherein the open end of the cartridge end is provided with an annular flange or a toothed flange.
8. A wall thickness variable extraction cartridge according to claim 1, wherein the extraction section corresponds to the thickest section.
9. A coupling comprising a wall thickness varying coupling barrel as claimed in any one of claims 1 to 8 and a split clamp or tooth clamp, and a silo.
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| 超临界流体连续萃取过程工艺参数控制系统;王威强;化工自动化及仪表;全文 * |
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