CN111569657B - Method for manufacturing spiral separation column and equipment for realizing method - Google Patents
Method for manufacturing spiral separation column and equipment for realizing method Download PDFInfo
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- CN111569657B CN111569657B CN202010320838.4A CN202010320838A CN111569657B CN 111569657 B CN111569657 B CN 111569657B CN 202010320838 A CN202010320838 A CN 202010320838A CN 111569657 B CN111569657 B CN 111569657B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/22—Separation by extracting
- B01D59/26—Separation by extracting by sorption, i.e. absorption, adsorption, persorption
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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Abstract
The invention relates to the field of thermonuclear fusion, in particular to a spiral separation column for separating hydrogen isotope gas, and particularly relates to a manufacturing method of the spiral separation column and equipment for realizing the method. The equipment comprises a machine tool, a spiral clamping fixture and a pipeline clamping device; the machine tool is connected with the spiral clamping fixture and is used for driving the spiral clamping fixture to rotate; the spiral clamping fixture is matched with the spiral separation column; the spiral mould is provided with a fixing device, and the fixing device is used for fixing the head end of the raw material pipe; the pipe clamp is positioned on the side surface of the spiral clamping fixture and used for positioning an unformed raw material pipe.
Description
Technical Field
The invention relates to the field of thermonuclear fusion, in particular to a spiral separation column for separating hydrogen isotope gas, and particularly relates to a manufacturing method of the spiral separation column and equipment for realizing the method.
Background
Chromatography is a separation mode commonly used in the chemical industry. The thermal cycle adsorption method is an improved gas chromatography method, and the principle of the thermal cycle adsorption method is to realize the separation of components based on the adsorption difference of materials in a separation column to different components in a gas phase, wherein the core component of the thermal cycle adsorption method is the separation column, and the scale of the separation column determines the scale of gas phase separation. At present, more separation columns are used for analysis equipment, the used separation columns are smaller, and the existing large separation columns generally do not have complex shapes and are not suitable for being used in scenes requiring extremely large column diameter ratio.
The length of the thermally cycled separation column affects the efficiency of the separation. To save space and facilitate installation, the separators are often made in a spiral shape. The separation column is coiled into a spiral shape, which is a reasonable method for solving the length-diameter ratio of the separation column, but the packing difficulty is increased by the longer spiral separation column, and the separation column with uniform packing density is difficult to obtain. Especially in a cyclic adsorption separation column sensitive to packing density.
Disclosure of Invention
The invention aims to: aiming at the problem that the packing density of the packing in the spiral separation column is difficult to control uniformly in the prior art, the method for manufacturing the spiral separation column is provided. The method realizes the uniform filling of the filler by a mode of filling the filler firstly and then forming the filler.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for manufacturing a spiral separation column, comprising filling a raw material tube with a filler, and forming the raw material tube into a spiral shape.
The filling of the filler in the space in the separation column is easier to realize through filling the filler in the existing straight or nearly straight raw material pipe, and the uniformity of the filler is ensured. Then the mixture is molded into a spiral shape, so that the spiral separation column meets the requirement of filling compactness.
As a preferred scheme of the invention, the raw material pipe is formed by connecting a plurality of sections of raw material pipes end to end; filling filler into a front-section raw material pipe, forming the front-section raw material pipe into a spiral shape, connecting a rear-section raw material pipe with the front-section raw material pipe, filling filler into the rear-section raw material pipe, and forming the rear-section raw material pipe into the spiral shape; and sequentially connecting a plurality of raw material pipes, filling and forming to obtain the spiral separation column.
The rear-stage raw material pipe is a raw material pipe which has been previously filled and formed, and the front and rear raw material pipes and the rear-stage raw material pipe are adjacent raw material pipes joined together. For example, the first section raw material pipe is a front section, and the second end raw material pipe is a rear section; when the second section of raw material pipe is the front section, the third section of raw material pipe is the rear section, and so on.
Filling a filler into a first section of raw material pipe, and then forming into a spiral shape; connecting the head end of the second section of raw material pipe to the tail end of the first section, filling the second section of raw material pipe with filling materials, and then forming into a spiral shape; and connecting, filling and forming a plurality of sections of raw material pipes in sequence to obtain the spiral separation column.
The spiral separation column is long in required length, for example, under the condition of dozens of meters, the scheme of step-by-step connection, filling and molding of multiple sections of raw material pipes is adopted, wherein the head end of the first section of raw material pipe does not need to be connected, the length of each section of filling is short, the uniform full filling of each section of filling is easier to ensure, and finally, the spiral separation column is formed in a good filling state.
In a preferred embodiment of the present invention, before filling the filler into the rear-stage raw material pipe, the sealing property between the rear-stage raw material pipe and the front-stage raw material pipe is checked.
The front end of the first section of raw material pipe is provided with an exhaust valve, the rear section of raw material pipe is welded to the front section of raw material pipe, the exhaust valve is closed, and inert gas is injected into the tail end of the rear section of raw material pipe to keep a certain pressure for sealing detection.
In a preferred embodiment of the present invention, after filling the filler in each segment of the raw material pipe, an inert gas is introduced to compact the filler in the raw material pipe.
And arranging an exhaust valve at the front end of the first section of raw material pipe, opening the exhaust valve after finishing the filling of the rear section of raw material pipe, injecting inert gas into the tail end of the rear section of raw material pipe, purging by adopting high-pressure inert gas, and further compacting the filling in the raw material pipe.
In a preferred embodiment of the present invention, each length of raw material tube is formed with an unformed length at the end of the length of raw material tube.
A section of unformed section is reserved at the tail end of the front section of the raw material pipe, the unformed section is not wound on the die, and when the head end of the rear section of the raw material pipe is connected to the unformed section, the connection is more convenient. The connecting section at the tail end may not be retained when the last section of the raw material pipe is formed.
In a preferred embodiment of the present invention, after each section of the raw material pipe is formed, each turn of the adjacent separation columns is connected.
Each section of raw material pipe can support a plurality of circles of separation columns, and after each section of raw material pipe is formed, adjacent separation columns are welded together in a welding mode, so that the spiral separation columns are not prone to deformation.
The invention also provides equipment for realizing the method, which comprises a machine tool, a spiral clamping fixture and a pipeline clamping fixture;
the machine tool is connected with the spiral clamping fixture and is used for driving the spiral clamping fixture to rotate;
the spiral clamping fixture is matched with the spiral separation column; the spiral mould is provided with a fixing device, and the fixing device is used for fixing the head end of the raw material pipe;
the pipe clamp is positioned on the side surface of the spiral clamping fixture and used for positioning an unformed raw material pipe.
The machine tool is basic equipment, and other parts are fixed on the machine tool to realize the functions of all parts. The structure of the machine tool is the structure of a conventional machine tool as long as the requirements on the diameter and the height of the spiral clamping fixture can be met. The spiral positioner is a cylindrical mold, and the size of the spiral positioner is designed according to the size of the spiral separation column. The fixing device is a counter bore, and the diameter of the counter bore is matched with the outer diameter of the raw material pipe. The pipeline clamp is positioned on the side surface of the spiral clamping fixture, and means that the pipeline clamp is positioned on the cylindrical side surface. The pipeline clamp holder is arranged on the machine tool, the angle of the raw material pipe entering the spiral clamping fixture is kept, the pipeline is prevented from being scratched, and the spiral clamping fixture and the pipeline clamp holder move relatively along the axial direction of the spiral clamping fixture in the raw material pipe forming process.
As a preferable scheme of the invention, the equipment further comprises a check wheel, wherein the check wheel is positioned on the side surface of the spiral mould and used for limiting the rebound of the raw material pipe formed by processing. Through setting up the non return wheel, when the spiral mould rotated, the rotation was followed to the non return wheel, and former tubular stock is avoided to the fashioned tubular stock of oppression, makes whole heliciform discrete column shape precision higher for the discrete column all keeps good laminating state with the spiral mould in whole forming process.
As a preferable scheme of the present invention, a spiral groove is provided on the spiral mold, and the spiral groove is matched with the spiral separation column.
The raw material pipe can be formed along the groove, and the shape is ensured, so that the spiral shape is more uniform.
As the preferable scheme of the invention, the non-return wheel is provided with a non-return groove, and the non-return groove is matched with the spiral hook groove to form a through hole matched with the raw material pipe.
As a preferable scheme of the invention, the spiral mould is formed by splicing a multi-segment mould.
The spiral mould is set to be spliced by the multi-segment mould, so that the spiral mould can be conveniently taken out after the separation column is manufactured, and demoulding is finished.
As a preferable scheme of the invention, the spiral mould is axially cut into a plurality of moulds by a cylindrical barrel, and the two ends of the plurality of moulds are respectively connected with a round end head to be assembled into a hollow cylinder. Preferably the mould is three. The direction of the cutting line is preferably parallel to the axis of the cylinder.
Through the arrangement, after the separation column is manufactured, the two ports are separated from the plurality of dies, and each die is taken out from the inner side of the spiral clamping fixture, so that the demoulding operation is easier to realize.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the manufacturing method of the spiral separation column, the spiral separation column meets the requirement of filling compactness by filling the filler in the raw material pipe and then forming.
2. According to the manufacturing method of the spiral separation column, the long separation column is manufactured by sequentially connecting, filling and molding the plurality of sections of raw material pipes, and the good state of the final filling is ensured.
3. According to the manufacturing method of the spiral separation column, the filling material in each section of the raw material pipe is filled with the filling material, and then the filling material in the raw material pipe is blown and compacted by using high-pressure gas, so that the filling material in the raw material pipe is more compact.
4. The method for manufacturing the spiral separation column of the invention connects each circle of adjacent separation columns after each section of raw material pipe is formed. The formed parts are connected into a whole, and the deformation of the spiral separation column is avoided.
5. According to the equipment for realizing the manufacturing method, the raw material pipe is wound on the spiral clamping fixture through reasonable arrangement of the machine tool, the spiral clamping fixture, the pipeline clamping fixture and the non-return wheel, the relative position of the raw material pipe and the spiral clamping fixture is controlled through the pipeline clamping fixture, the formed raw material pipe is pressed through the non-return wheel, deformation is avoided, and the manufacturing method is better realized.
6. The equipment for realizing the manufacturing method of the invention enables the spiral shape to be more uniform by arranging the grooves and the grooves matched with the raw material pipe on the spiral clamping fixture and the non-return wheel.
7. According to the equipment for realizing the manufacturing method, the spiral mould is set to be in a multi-segment mould splicing mode, so that demoulding can be conveniently finished after the spiral separation column is manufactured.
Drawings
Fig. 1 is a schematic structural diagram of the apparatus for implementing the method for manufacturing the spiral separation column according to the present invention.
Fig. 2 is a schematic structural diagram of the apparatus for implementing the method for manufacturing the spiral separation column according to the present invention.
Fig. 3 is a schematic view of the spiral separation column of example 3 of the present invention, which is not demolded after molding.
Icon: 100-a machine tool; 101-machine tool faceplate; 102-machine tool tailstock; 103-a machine tool holder; 201-seamless steel pipe; 202-welding points; 1-a spiral mould; 11-a spiral groove; 12-a fixture; 2-a pipe gripper; 21-a first pipe gripper; 22-a second pipe gripper; 3-check wheel.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A method for manufacturing a spiral separation column comprises the following steps,
the head end of a first raw material pipe is sealed and fixed on a mould, and then the tail end of the first raw material pipe is filled with filler.
Winding a first raw material pipe on a mould to form a spiral shape; several turns of threads are formed to connect adjacent threads together.
And connecting the head end of the second raw material pipe to the tail end of the first raw material pipe to form a communicated pipeline. The joints were checked for hermeticity. And filling the filler into the tail end of the second raw material pipe after the requirement on air tightness is met, and compacting the filler in the pipe by using high-pressure nitrogen. Winding a second raw material pipe on the mould to form a spiral shape; several turns of threads are formed to connect adjacent threads together.
According to the method, the third to the Nth raw material pipes are connected in sequence, and then the filler is injected and formed. And finally, taking down the mould to obtain the spiral separation column.
When each section of raw material pipe is formed, a section of unformed connecting section is left at the tail end of the section of raw material pipe. And an unformed connecting section is reserved at the tail end of the front section raw material pipe, so that the front section raw material pipe is conveniently connected with the rear section raw material pipe. The connecting section at the tail end may not be retained when the last section of the raw material pipe is formed.
Example 2
The present invention provides an apparatus for carrying out the above method, as shown in fig. 1-2, comprising a machine tool 100, a screw clamp 1, a pipe gripper 2; the machine tool 100 comprises a machine tool faceplate 101, a machine tool tailstock 102 and a machine tool rest 103. The spiral clamping fixture is used for driving the spiral clamping fixture 1 to rotate; the spiral clamping fixture 1 is fixed on a machine tool through a machine tool faceplate 101 and a machine tool tailstock 102, and the spiral clamping fixture 1 is matched with the spiral separation column; the spiral tyre 1 is provided with a spiral groove 11, and the spiral groove 11 is matched with the spiral separation column. The spiral clamping fixture 1 is provided with a fixing device 12, and the fixing device 12 is used for fixing the head end of the raw material pipe; the tube holder 2 comprises a first tube holder 21 and a second tube holder 22. The first pipeline clamp 21 is fixed on a machine tool rest 103 and is positioned on the side surface of the spiral clamping fixture; the second tube holder 22 is fixed to the tool post 103 of the machine tool at the bottom of the screw clamp, and the tube holder 2 is used to position the unformed raw pipe.
The device also comprises a check wheel 3, wherein the check wheel 3 is positioned at the other side surface of the spiral clamping fixture 1 opposite to the first pipeline clamping device 21 and used for limiting the rebound of the raw material pipe formed by machining. And a non-return groove is formed in the non-return wheel 3, and after the non-return groove is matched with the spiral groove 11, a through hole matched with the raw material pipe is formed.
Through setting up non return wheel 3, in spiral mould 1 pivoted, non return wheel 3 follows the rotation, and the former tubular stock of oppression shaping avoids the former tubular stock to kick-back for whole heliciform discrete column shape precision is higher, and the discrete column all keeps good laminating state with spiral mould 1 in whole forming process.
The spiral mould 1 is formed by axially cutting a cylindrical barrel into three moulds, and the two ends of the three moulds are respectively connected with a circular end head and then assembled into a hollow cylinder. After the separation column is manufactured, the two ports are separated from the plurality of dies, and each die is taken out from the inner side of the spiral clamping fixture, so that the demoulding operation is easier to realize.
Example 3
This example uses the apparatus of example 2 to implement a method of manufacturing a spiral separation column. The raw material pipe is a seamless stainless steel pipe.
A first raw material pipe is fixed on the spiral mould 1 through a counter bore, filler is filled into the first raw material pipe after the fixing is finished, and an inlet is sealed through a seal head after the filler is filled, so that the filler is prevented from being scattered.
The machine tool 100 rotates to drive the spiral clamping fixture 1 to rotate, the first raw material pipe is wound on the spiral clamping fixture, winding of the first raw material pipe is completed, a certain length is reserved at the tail end, and welding with the next raw material pipe is facilitated. After welding with the next raw material pipe, leak detection is carried out through high-pressure inert gas, and meanwhile, the high-pressure inert gas can further compact the filler in the pipeline. And repeating the steps until the whole separation column is manufactured. In the process of winding the separation column, in order to ensure uniformity in the height direction, each circle of the separation column is welded after each raw material pipe is wound, as shown in fig. 3, in the part of the seamless steel pipe 201 formed on the spiral mold, adjacent threads are welded together through a welding point 202, so that the spiral separation column is ensured not to deform after demolding.
In order to facilitate demoulding, the spiral mould is in a hollow tubular shape, after the spiral mould is machined, the spiral mould is cut into a three-piece mould in a linear cutting mode along the direction parallel to the axis of the spiral mould, the three-piece mould is spliced during winding, and the shape of the three-piece mould is fixed through the end heads at the two ends of the mould. After winding is finished, the fixing of the end of the die is released, the die is released towards the spiral inner part, and the die can be conveniently separated and recycled.
After the separation column is manufactured, the relation between the filling amount and the volume of the separation column is checked and is consistent with the bulk density of the filler. The separation column needs to be subjected to leak detection after demoulding, and the helium detection result is superior to 5 multiplied by 10 -9 Pa·m 3 And/s, the separation column manufactured by the method can meet the shape precision, the filling uniformity and the leakage rate index of the separation column.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The manufacturing approach of a helical column separator, characterized by, pack the filler in the raw material tube first, shape the raw material tube into the heliciform, the said raw material tube is connected sequentially by the beginning and the end of several sections of raw material tubes; filling filler into a front-section raw material pipe, forming the front-section raw material pipe into a spiral shape, connecting a rear-section raw material pipe with the front-section raw material pipe, filling filler into the rear-section raw material pipe, and forming the rear-section raw material pipe into the spiral shape; sequentially connecting a plurality of raw material pipes, filling and molding to obtain a spiral separation column;
the equipment for manufacturing the spiral separation column comprises a machine tool (100), a spiral mould (1) and a pipe clamp (2);
the machine tool (100) is connected with the spiral clamping fixture (1) and is used for driving the spiral clamping fixture (1) to rotate;
the spiral clamping fixture (1) is matched with the spiral separation column; the spiral clamping fixture (1) is provided with a fixing device (12), and the fixing device (12) is used for fixing the head end of the raw material pipe;
the pipeline clamp holder (2) is positioned on the side surface of the spiral clamping fixture and used for positioning an unformed raw material pipe.
2. The method of manufacturing a spiral separation column according to claim 1, wherein before filling the filler into the rear stage raw material tube, the tightness between the rear stage raw material tube and the front stage raw material tube is checked.
3. The method of claim 1, wherein after filling the packing material into each section of the raw material tube, the inert gas is introduced to compact the packing material in the raw material tube.
4. The method of claim 1, wherein an unformed section is left at the end of each section of the stock tube when the stock tube is formed.
5. The method of claim 1, wherein each turn of the adjacent separation columns is connected after each section of the raw material tube is formed.
6. The method for manufacturing the spiral separation column according to claim 1, further comprising a check wheel (3), wherein the check wheel (3) is located on the side surface of the spiral mold and used for limiting the rebound of the raw material pipe formed by machining.
7. The method of manufacturing a helical separation column as claimed in claim 1, wherein the helical mold (1) is provided with a helical groove (11), and the helical groove (11) is matched with the helical separation column.
8. The method of manufacturing a helical separation column as claimed in claim 1, wherein the helical mould (1) is made by splicing a multi-piece mould.
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| CN202010320838.4A CN111569657B (en) | 2020-04-22 | 2020-04-22 | Method for manufacturing spiral separation column and equipment for realizing method |
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| CN202010320838.4A CN111569657B (en) | 2020-04-22 | 2020-04-22 | Method for manufacturing spiral separation column and equipment for realizing method |
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| CN111569657B true CN111569657B (en) | 2023-04-18 |
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