CN108160018B - Thin-wall lining reactor and manufacturing method thereof - Google Patents
Thin-wall lining reactor and manufacturing method thereof Download PDFInfo
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- CN108160018B CN108160018B CN201711278897.4A CN201711278897A CN108160018B CN 108160018 B CN108160018 B CN 108160018B CN 201711278897 A CN201711278897 A CN 201711278897A CN 108160018 B CN108160018 B CN 108160018B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0277—Metal based
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Abstract
the invention discloses a thin-wall lining reactor and a manufacturing method thereof, the thin-wall lining reactor comprises a flange cover, an upper shell and a lower shell which are fixedly connected in sequence, the upper shell and the lower shell respectively comprise an inner layer cylinder and an outer layer cylinder which are connected with each other through a thermal sleeve, the flange cover is provided with a material inlet, a material outlet and a test insertion hole, and the inner layer cylinder of the upper shell, the inner layer cylinder of the lower shell, the material inlet, the material outlet and the test insertion hole on the flange cover form a sealed reaction cavity. The invention has the advantages that: the inner-layer cylinder body and the outer-layer cylinder body are connected through the thermal sleeve structure, so that the failure problems of bulging, leakage and the like easily caused by a reactor produced in the prior art can be effectively avoided under the condition of proper size.
Description
Technical Field
The invention relates to the field of reactors, in particular to a thin-wall lining reactor and a manufacturing method thereof.
background
in the industrial fields of metallurgy, nuclear energy, chemical industry, medicine and the like, reaction materials need to be separated, purified or concentrated to obtain high-purity materials, and the reaction process is usually accompanied by a large-temperature-difference high-variable-stress process from low temperature to high temperature and from vacuum to medium-high pressure; meanwhile, the reaction materials are in different material states at different temperatures, or have strong corrosivity, or have extremely high requirements on material purity and cleanliness. Therefore, the prior art generally adopts a loose lining process to manufacture a lining reactor, so as to ensure the strength safety of equipment in a low-temperature or high-temperature and high-pressure environment and ensure that a material in a part contacting with a material has strong corrosion resistance or high purity.
In a common lining loosening process, a layer of high-purity or corrosion-resistant metal material is lined inside a shell, and the lining layer is attached to the shell by means of jacking or mechanical rolling. However, the process technology cannot ensure that the lining layer is tightly attached to the shell in the full size range. When the lining layer is correspondingly applied to a large-temperature-difference or vacuum negative-pressure environment, the lining layer is prone to failure problems such as leakage and swelling due to the difference of physical properties such as the thermal expansion coefficients of the outer shell and the lining. In order to solve the above problems, a new thin-walled lined reactor is urgently needed.
Disclosure of Invention
in order to overcome the defects of the prior art, the invention aims to solve the problem of failure of the prior reactor such as bulge, leakage and the like under the harsh working conditions of vacuum-medium pressure, deep cooling-high temperature and the like, and therefore, the invention provides a thin-wall lining reactor and a manufacturing method thereof.
in order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a thin wall lining reactor, includes fixed connection's flange cover in proper order, goes up casing and lower casing, go up the casing and all include inlayer barrel and the outer barrel that connects through the shrink fit each other with lower casing, be provided with material import, material export and test inserted hole on the flange cover, material import, material export, the test inserted hole that the inlayer barrel of going up the casing, the inlayer barrel of lower casing, flange cover and flange cover form sealed reaction cavity.
preferably, the inner-layer cylinder body and the outer-layer cylinder body of the lower shell are both composed of a straight cylinder section and a lower end socket, the straight cylinder section of the inner-layer cylinder body and the lower end socket of the inner-layer cylinder body are integrally machined and formed, and the straight cylinder section of the outer-layer cylinder body and the lower end socket of the outer-layer cylinder body are integrally machined and formed.
Preferably, the material of the inner layer cylinder body is pure nickel N6, and the material of the outer layer cylinder body is S31608 IV.
preferably, the upper shell is flanged at a position opposite to the flange cover to form an upper shell upper flange, and the upper shell and the lower shell are respectively flanged at opposite positions to form an upper shell lower flange and a lower shell flange;
the flange cover lining ring and the upper shell upper flange lining ring are respectively arranged on the mutually opposite surfaces of the flange cover and the upper shell upper flange plate, and mortise and tenon structures are respectively arranged at the opposite positions of the flange cover lining ring and the upper shell upper flange lining ring;
the opposite surfaces of the upper shell lower flange disc and the lower shell flange disc are respectively provided with an upper shell lower flange bushing ring and a lower shell flange bushing ring, and the opposite positions of the upper shell lower flange bushing ring and the lower shell flange bushing ring are respectively provided with a mortise and tenon structure;
The inner diameters of the flange cover lining ring, the upper shell upper flange lining ring, the upper shell lower flange lining ring and the lower shell flange lining ring are the same as the inner diameter of the inner layer cylinder.
preferably, a first region to be welded is arranged at the contact position of the inner-layer cylinder body, the outer-layer cylinder body and the lining ring at the corresponding position, an inlet of the first region to be welded is arranged on the inner side wall of the inner-layer cylinder body, and a second region to be welded is arranged at the contact position of the outer-layer cylinder body and the outer side surface of the lining ring at the corresponding position.
Preferably, one side of the inner ring of the lining ring, which faces the inner-layer cylinder corresponding to the lining ring, is provided with a lining ring inner inclined ring surface, one side of the inner-layer cylinder, which faces the cylinder, is provided with an inner-layer cylinder inclined ring surface, the inner-layer cylinder, which faces the end surface of the corresponding lining ring, is provided with an outer-layer cylinder step, the end surface of the outer-layer cylinder, which faces the end surface of the corresponding lining ring, is provided with an inner ring step matched with the outer-layer cylinder step, and the lining ring inner inclined ring surface, the inner-layer cylinder inclined ring surface, the outer ring step, the inner ring step, the lining ring end surface which intersects with the lining ring inner inclined ring surface and is opposite to the outer-layer cylinder form a first region to be welded together;
the intersecting line of the inner inclined ring surface of the lining ring and the end surface of the lining ring falls onto the inner ring step in the axial projection of the reactor;
One side of the outer ring of the lining ring, which faces the corresponding outer-layer cylinder, is provided with an outer inclined ring surface of the lining ring, the outer-layer cylinder opposite to the outer inclined ring surface of the lining ring is provided with an annular groove, and the outer inclined ring surface of the lining ring, the end surface of the lining ring, which is intersected with the outer inclined ring surface of the lining ring and opposite to the outer-layer cylinder, and the annular groove form a second region to be welded;
The intersecting line of the outer inclined ring surface of the lining ring and the end surface of the lining ring falls into the horizontal groove surface of the annular groove in the axial projection of the reactor.
Preferably, the welding material used for the first area to be welded and the second area to be welded is Jinchuan nickel industry N4.
Preferably, the outer diameter of the liner ring is larger than that of the inner-layer cylinder body and smaller than that of the flange plate at the corresponding position.
a method of making the thin-walled lined reactor described above, comprising the steps of:
S1, determining the set sizes of the outer-layer cylinder and the inner-layer cylinder after processing and forming, wherein the outer diameter of the used material is larger than the set sizes of the outer diameter of the outer-layer cylinder and the outer diameter of the inner-layer cylinder, the inner diameter is smaller than the set sizes of the inner diameter of the outer-layer cylinder and the inner diameter of the inner-layer cylinder, the length is larger than the set sizes of the straight cylinder length of the outer-layer cylinder and the straight cylinder length of the inner-layer cylinder, and the length of the inner-layer cylinder is larger than the length of the outer-layer;
S2, sleeving the inner-layer cylinder body in the outer-layer cylinder body in an interference fit manner through a shrink fit process;
S3, flanging the upper shell at the position opposite to the flange cover to form an upper shell flange, and flanging the upper shell and the lower shell at the positions opposite to each other to form an upper shell lower flange and a lower shell flange respectively;
S4, processing and removing the redundant size of the inner layer cylinder and the outer layer cylinder relative to the set size;
s5, milling a first region to be welded and a second region to be welded on the end faces of the inner-layer cylinder and the outer-layer cylinder, the end faces of the upper shell and the liner rings corresponding to the end faces, wherein the end faces are opposite to each other, and the end faces of the flange cover and the liner rings of the flange cover are opposite to each other;
S6, welding the first area to be welded and the second area to be welded to enable the flange backing ring to be welded on the flange cover, welding the upper flange backing ring of the upper shell on the end surface of the upper shell opposite to the flange cover, welding the lower flange backing ring of the upper shell on the end surface of the upper shell opposite to the lower shell, and welding the lower flange backing ring of the lower shell on the end surface of the lower shell opposite to the upper shell;
s7, polishing the inner surface of the inner-layer cylinder and the outer surface of the outer-layer shell until the inner-layer cylinder and the outer-layer cylinder meet the set size in the step S1;
s8, fastening pieces which are fastened on the flange cover and the upper flange of the upper shell, sealing the upper end surfaces of the flange cover and the upper shell, and fastening pieces which are fastened on the lower flange of the upper shell and the flange of the lower shell; and sealing the lower end surface of the upper shell and the upper end surface of the lower shell.
preferably, in step S2, the outer cylinder is fixed and heated to 350 ℃, and is kept warm for 1 hour to ensure uniform temperature of the inner and outer walls, a fixing block for facilitating movement of the inner cylinder is spot-welded on the upper surface of the inner cylinder, and the fixing block is removed as an extra size in step S4.
the invention has the advantages that:
(1) the inner-layer cylinder body and the outer-layer cylinder body are connected through the thermal sleeve structure, so that the failure problems of bulging, leakage and the like easily caused by a reactor produced in the prior art can be effectively avoided under the condition of proper size.
(2) The inner layer cylinder and the outer layer cylinder of the lower shell are both composed of a straight cylinder section and a lower end enclosure which are integrally processed, so that the number of parts is reduced, and the sealing performance of the reactor is also improved.
(3) Because the processing precision and the interference magnitude of the thermal sleeve structure on the inner-layer cylinder 9 and the outer-layer shell are calculated, if the interference magnitude is small, the inner-layer cylinder 9 and the outer-layer shell are separated under a high-temperature environment, leakage and bulging failure are inevitable to occur due to repeated circulation, if the interference magnitude is large, the inner-layer cylinder is superposed under the action of interfacial stress formed by shrinkage of the outer-layer shell under a cryogenic environment, and the pure nickel N6 material is low in strength and extremely easy to generate wrinkle failure. I.e. to prevent the above.
(4) the welding structure of the lining ring is used, the risk of fillet weld cracking under the temperature fatigue effect is reduced, and the leakage risk factor is reduced.
(5) the outer diameter of the material of the inner-layer barrel and the outer-layer barrel before processing is larger than a set size, the inner diameter of the inner-layer barrel is smaller than a set size, and therefore the inner-layer barrel is processed for multiple times, the length of the inner-layer barrel is larger than that of the outer-layer barrel, the fixed block which is convenient to move the inner-layer barrel is welded on the upper surface of the inner-layer barrel in a spot mode, the inner-layer barrel is deformed when clamping and hot sleeving are avoided, the length of the material of the inner-layer barrel and the outer-layer barrel is.
(6) The mortise and tenon structures which are mutually matched are arranged on the oppositely arranged lining rings, so that the lining rings cannot be dislocated due to the internal pressure when reaction gas is filled into the inner shell of the reactor.
(7) According to the invention, the shapes and positions of the first to-be-welded area and the second to-be-welded area can be set, so that the contact area between the soldering tin in the to-be-welded area and the required connecting part can be increased, and the welding firmness can be effectively increased.
(8) the lining reactor optimizes the structures of the reactor cylinder and the thin-wall lining through calculation analysis and experimental verification according to the process parameters of a medium, temperature, pressure and the like used by the reactor, and the thin-wall lining and the outer shell are precisely jointed by comprehensively adopting the precision machining and hot sleeve process technology. On one hand, the thin-wall lining is made of a strong corrosion resistant material or a high-purity metal material so as to meet the performance requirement of a reaction medium on the material of the inner wall of the reactor; meanwhile, the inner lining shell innovatively adopts the precise processing and hot-sleeve process technology, stress checking is carried out on the inner lining shell under the action of interface stress by calculating the expansion amount of inner and outer layer materials at different temperatures, so that the problems of failure of the inner lining shell, such as cracking at high temperature and high pressure, wrinkling, bulging and the like, are solved, and the problem of failure of the lining reactor under the harsh use environment is solved.
drawings
FIG. 1 is a block diagram of a thin-walled lined reactor of the present invention.
FIG. 2 is a block diagram of the thin walled lined reactor of the present invention at the flange cover.
FIG. 3 is a block diagram of the upper shell of a thin walled lined reactor of the present invention.
FIG. 4 is a block diagram of the invention at the lower shell of a thin walled lined reactor.
Fig. 5 is an enlarged view of the first to-be-welded region and the second to-be-welded region in the absence of welding at I in fig. 4 in the present invention.
FIG. 6 is a block diagram of the fixture for measuring thin walled lined reactors of the present invention.
FIG. 7 is a block diagram of the tool holder of the thin-walled lining reactor of the present invention
the notations in the figures have the following meanings:
1-material outlet 2-material inlet 3-flange cover 4-upper shell
5-lower shell 51-straight cylinder section 52-lower end socket 6-inner layer cylinder 7-test insertion opening
81-Flange cover liner ring 82-upper housing flange liner ring
83-upper housing lower flange bushing ring 84-lower housing flange bushing ring
9-outer layer cylinder 101-upper shell upper flange plate 102-upper shell lower flange plate
103-lower housing flange 11-first area to be welded 12-second area to be welded
13-measuring plate 14-straight section 15-curved section
16-handle 161-horizontal part 162-pointer fixing part 163-restriction part
164-Dial indicator
Detailed Description
Example 1
as shown in fig. 1-4, a thin-walled lining reactor comprises a flange cover 3, an upper shell 4 and a lower shell 5 which are fixedly connected in sequence, wherein each of the upper shell 4 and the lower shell 5 comprises an inner layer cylinder 6 and an outer layer cylinder 9 which are connected with each other through a thermal sleeve, the flange cover 3 is provided with a material inlet 2, a material outlet 1 and a test insertion opening 7, the inner layer cylinder 6 of the upper shell 4, the inner layer cylinder 6 of the lower shell 5, the material inlet 2, the material outlet 1 and the test insertion opening 7 on the flange cover 3 and the flange cover 3 form a sealed reaction cavity, and in this embodiment, a temperature testing device extending towards the lower shell 5 is hermetically arranged at the test insertion opening 7.
The inner layer cylinder body 6 and the outer layer cylinder body 9 of the lower shell 5 are both composed of a straight cylinder section and a lower end enclosure, the straight cylinder section of the inner layer cylinder body 6 and the lower end enclosure of the inner layer cylinder body 6 are integrally processed and formed, and the straight cylinder section of the outer layer cylinder body 9 and the lower end enclosure of the outer layer cylinder body 9 are integrally processed and formed. The material of the inner layer cylinder 6 is pure nickel N6, and the material of the outer layer cylinder 9 is S31608 IV. The wall thickness of the inner layer cylinder 6 is 4 mm.
The upper shell 4 is flanged at the position opposite to the flange cover 3 to form an upper shell upper flange plate 101, and the upper shell 4 and the lower shell 5 are respectively flanged at the positions opposite to each other to form an upper shell lower flange plate 102 and a lower shell flange plate 103;
the opposite surfaces of the flange cover 3 and the upper flange plate 101 of the upper shell are respectively provided with a flange cover lining ring 81 and an upper shell upper flange lining ring 82, and the opposite positions of the flange cover lining ring 81 and the upper shell upper flange lining ring 82 are respectively provided with a mortise and tenon structure 80;
The opposite surfaces of the upper shell lower flange plate 102 and the lower shell flange plate 103 are respectively provided with an upper shell lower flange bushing ring 83 and a lower shell flange bushing ring 84, and the opposite positions of the upper shell lower flange bushing ring 83 and the lower shell flange bushing ring 84 are respectively provided with a mortise and tenon structure 80;
the inner diameters of the flange cover backing ring 81, the upper housing upper flange backing ring 82, the upper housing lower flange backing ring 83 and the lower housing flange backing ring 84 are the same as the inner diameter of the inner cylinder 6. The external diameter of the lining ring is larger than that of the inner-layer cylinder 6 and smaller than that of the flange plate at the corresponding position.
The arrangement of the tenon-and-mortise structure enables the inner-layer cylinder 9 of the upper shell 4 and the inner-layer cylinder 9 of the lower shell 5 to be completely butted.
The contact positions of the inner-layer cylinder body 6, the outer-layer cylinder body 9 and the lining ring at the corresponding position are provided with a first area to be welded 11, an inlet of the first area to be welded 11 is formed in the inner side wall of the inner-layer cylinder body 6, and a second area to be welded 12 is arranged at the contact position of the outer-layer cylinder body 9 and the outer side surface of the lining ring at the corresponding position.
As shown in fig. 5, the shape and position of the first to-be-welded region 11 and the second to-be-welded region 12 are described as follows:
one side of the inner ring of the lining ring, which faces the inner cylinder 6 corresponding to the lining ring, is provided with a lining ring inner inclined ring surface a, one side of the inner cylinder 6, which faces the cylinder, is provided with an inner cylinder inclined ring surface b, the inner cylinder 6, which faces the end surface of the corresponding lining ring, is provided with an outer ring step c near the outer cylinder 9, which faces the end surface of the corresponding lining ring and is near the inner cylinder 6, is provided with an inner ring step d matched with the outer ring step c, and the lining ring inner inclined ring surface a, the inner cylinder inclined ring surface b, the outer ring step c, the inner ring step d, which is intersected with the lining ring inner inclined ring surface a and is opposite to the outer cylinder 9, jointly enclose a first region to be welded 11;
the intersecting line of the inner inclined ring surface a of the lining ring and the end surface e of the lining ring falls on the step d of the inner ring in the axial projection of the reactor;
a liner ring outer inclined ring surface f is arranged on one side, facing the corresponding outer layer cylinder body 9, of the outer ring of the liner ring, an annular groove g is formed in the position, opposite to the liner ring outer inclined ring surface f, of the outer layer cylinder body 9, and a second region to be welded 12 is formed by the liner ring outer inclined ring surface f, a liner ring end surface e which is intersected with the liner ring outer inclined ring surface f and opposite to the outer layer cylinder body 9 and the annular groove g;
The intersecting line of the outer inclined ring surface f of the lining ring and the end surface e of the lining ring falls into the horizontal groove surface of the annular groove g in the axial projection of the reactor.
The bonding material used for the first region to be bonded 11 and the second region to be bonded 12 is ni-agasica N4.
Example 2
A thin-walled lined reactor of manufacturing example 1 comprising the steps of:
S1, determining the set sizes of the outer-layer cylinder 9 and the inner-layer cylinder 6 after processing and forming, wherein the outer diameter of the used material is larger than the set sizes of the outer diameter of the outer-layer cylinder 9 and the outer diameter of the inner-layer cylinder 6, the inner diameter is smaller than the set sizes of the inner diameter of the outer-layer cylinder 9 and the inner diameter of the inner-layer cylinder 6, the length is larger than the set sizes of the straight cylinder length of the outer-layer cylinder 9 and the straight cylinder length of the inner-layer cylinder 6, and the length of the inner-layer cylinder 6 is larger than the length of the outer-layer cylinder 9;
The specific size of the outer layer cylinder 9 and the inner layer cylinder 6 and the feeding size of the upper shell 4 and the lower shell 5 before processing are as follows:
The upper shell 4:
Outer barrel 9 net size: the inner diameter and the outer diameter are 270mm and 138mm respectively, the length is L395 mm, and the thickness of the lining ring is 12 mm;
feeding size: the inner and outer diameters are 274mm and 134mm respectively, and the length is increased to 450 mm. The material is S31608 IV;
Net size of the inner layer cylinder 6: the inner diameter and the outer diameter are respectively 138mm and 130mm, and the length is L395 mm;
Feeding size: the inner and outer diameters are 142mm and 122mm respectively, and the length is increased to 500 mm. The material is pure nickel N6.
A lower housing 5:
outer barrel 9 net size: the inner diameter and the outer diameter are 270mm and 138mm respectively, the length is L, 251mm, and the thickness of the lining ring is 12 mm;
feeding size: the inner and outer diameters are 274mm and 134mm respectively, and the length is increased to 280 mm. The material is as follows: s31608IV
Net size of the inner layer cylinder 6: the inner diameter and the outer diameter are respectively 138mm and 130mm, and the length is L-240 mm;
Feeding size: the inner and outer diameters are 142mm and 122mm respectively, and the length is increased to 290 mm. The material is pure nickel N6.
s2, sleeving the inner-layer cylinder 6 in the outer-layer cylinder 9 in an interference fit manner through a shrink fit process; in the step, the outer layer cylinder 9 is fixed and heated to 350 ℃, heat preservation is carried out for 1 hour, the temperature of the inner wall and the temperature of the outer wall are ensured to be uniform, and spot welding is carried out on the upper surface of the inner layer cylinder 6 to facilitate moving of the fixing block of the inner layer cylinder 6. Before the shrink-fitting, the outer cylinder 9 must be fixed and the shrink-fitting process time must be short.
S3, flanging the upper shell 4 at the position opposite to the flange cover 3 to form an upper shell upper flange plate 101, and flanging the upper shell 4 and the lower shell 5 at the positions opposite to each other to form an upper shell lower flange plate 102 and a lower shell flange plate 103 respectively;
s4, processing and removing the redundant size of the inner-layer cylinder 6 and the outer-layer cylinder 9 relative to the set size, and removing the fixed block as the redundant size;
s5, milling a first region to be welded and a second region to be welded on the end faces of the inner-layer cylinder 6 and the outer-layer cylinder 9, which are opposite to each other, of the upper shell 4, which are opposite to the end face of the flange cover 3, and the liner rings of the upper shell 4, which are opposite to the end face of the flange cover 3, and milling a second region to be welded on the end face of the flange cover 3, which is opposite to the flange cover 3, and the liner ring 81 of the flange cover;
S6, welding the first area to be welded and the second area to be welded, so that the flange backing ring 81 is welded on the flange cover 3, the upper flange backing ring 82 of the upper shell is welded on the end surface of the upper shell 4 opposite to the flange cover 3, the lower flange backing ring 83 of the upper shell is welded on the end surface of the upper shell 4 opposite to the lower shell 5, and the flange backing ring 84 of the lower shell is welded on the end surface of the lower shell 5 opposite to the upper shell 4;
s7, grinding the inner surface of the inner-layer cylinder 9 and the outer surface of the outer-layer shell until the inner-layer cylinder 6 and the outer-layer cylinder 9 meet the set size in the step S1; the protruding parts of the welding spots at the first area to be welded 11 are also ground flat during the grinding process.
S8, fastening pieces which are fastened and installed on the flange cover 3 and the upper flange plate 101 of the upper shell, sealing the upper end faces of the flange cover 3 and the upper shell 4, and fastening pieces which are fastened and installed on the lower flange plate 102 of the upper shell and the flange plate 103 of the lower shell; the lower end surface of the upper case 4 and the upper end surface of the lower case 5 are sealed. The thin-wall lining reactor in the scheme needs to work between 10Pa and 8.5MPa, and the working temperature range is between 196 ℃ below zero and 500 ℃.
In order to obtain the dimension in step 1, precision machining is necessary, since the lower shell 5 is composed of the straight tube section 51 and the lower end socket 52, and the straight tube section 51 is in a cylindrical state, measurement is inconvenient, and in order to ensure concentricity and roundness, particularly, the whole of the inner shell and the outer shell of the lower tube end socket is precisely machined at one time, the clamp and the cutter bar for measuring the thin-wall lining reactor in the embodiment 1 are provided in the scheme.
As shown in fig. 6, the clamp is a measuring plate 13, a notch is formed in the measuring plate 13, the notch includes an arc portion 15 and a straight portion 14, the arc portion 15 is attached to the diameter of the outer surface of the lower end socket 52, and the straight portion 14 is attached to the outer surface of the straight section 51. The clamp only needs a tester to hold the measuring plate 13 and rotate around the central axis of the straight cylinder section 51 in the length direction, and if the rotation process is smooth and the arc-shaped part 15 and the straight line part 14 are respectively attached to the outer surface of the lower seal head 52 and the outer surface of the straight cylinder section 51 at the moment, the processed lower shell 5 is a qualified product.
As shown in fig. 7, the handle 16 includes a horizontal portion 161, a pointer fixing portion 162 provided at one end of the horizontal portion 161, and a restricting portion 163 provided at the other end of the horizontal portion 161, the pointer fixing portion 162, and the restricting portion 163 are configured like a U-shape, and the pointer is fixed on the pointer fixing portion 162 and is disposed parallel to the handle 16. Optimally, the pointer uses the dial gauge 164. Wherein, restriction position 163 sets up with horizontal position 161 is perpendicular, and the mode of use of cutter arbor is: the inner side of the horizontal part 161 and the inner side of the limiting part are leaned against the cylinder to be measured, the pointer on the dial indicator 164 is also clung to the cylinder to be measured, the cutter bar is moved along the central axis direction of the cylinder to be measured, and when the data on the dial indicator 164 is unchanged, the measured surface is flat. Wherein the distance of the dial indicator 164 from the horizontal portion 161 is adjustable. Optimally, the vertical distance from the inner side surface of the horizontal part 161 to the center of the pointer is equal to the radius of the cylinder to be measured, at the moment, whether the diameter of the cylinder to be measured in the central axis direction is equal or not is measured, and when the cylinder to be measured is tightly attached to the limiting part 163 and the horizontal part 161, the data of the universal meter is not changed, namely, the cylinder to be measured is a qualified product.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The thin-wall lining reactor is characterized by comprising a flange cover (3), an upper shell (4) and a lower shell (5) which are fixedly connected in sequence, wherein the upper shell (4) and the lower shell (5) both comprise an inner-layer cylinder (6) and an outer-layer cylinder (9) which are connected through a hot sleeve, the flange cover (3) is provided with a material inlet (2), a material outlet (1) and a test insertion hole (7), and the inner-layer cylinder (6) of the upper shell (4), the inner-layer cylinder (6) of the lower shell (5), the flange cover (3) and the material inlet (2), the material outlet (1) and the test insertion hole (7) on the flange cover (3) form a sealed reaction cavity;
The upper shell (4) is flanged at a position opposite to the flange cover (3) to form an upper shell upper flange (101), and the upper shell (4) and the lower shell (5) are respectively flanged at positions opposite to each other to form an upper shell lower flange (102) and a lower shell flange (103);
The flange cover lining ring (81) and the upper shell upper flange lining ring (82) are respectively arranged on the mutually opposite surfaces of the flange cover (3) and the upper shell upper flange (101), and mortise and tenon structures (80) are respectively arranged at the opposite positions of the flange cover lining ring (81) and the upper shell upper flange lining ring (82);
the opposite surfaces of the upper shell lower flange plate (102) and the lower shell flange plate (103) are respectively provided with an upper shell lower flange lining ring (83) and a lower shell flange lining ring (84), and the opposite positions of the upper shell lower flange lining ring (83) and the lower shell flange lining ring (84) are respectively provided with a mortise and tenon structure (80);
the inner diameters of a flange cover lining ring (81), an upper shell upper flange lining ring (82), an upper shell lower flange lining ring (83) and a lower shell flange lining ring (84) are the same as the inner diameter of the inner-layer cylinder body (6);
A first region to be welded (11) is arranged at the contact position of the inner-layer cylinder body (6) and the outer-layer cylinder body (9) with the corresponding position of the lining ring, an inlet of the first region to be welded (11) is arranged on the inner side wall of the inner-layer cylinder body (6), and a second region to be welded (12) is arranged at the contact position of the outer-layer cylinder body (9) with the outer side surface of the corresponding position of the lining ring;
one side of the inner ring of the lining ring, which faces the inner layer cylinder (6) corresponding to the lining ring, is provided with a lining ring inner inclined ring surface (a), one side of the inner layer cylinder (6), which faces the end surface of the lining ring and faces the inside of the cylinder, is provided with an inner layer cylinder inclined ring surface (b), the end surface of the inner layer cylinder (6), which faces the corresponding lining ring, is close to the outer layer cylinder (9) is provided with an outer ring step (c), the end surface of the outer layer cylinder (9), which faces the corresponding lining ring, is provided with an inner ring step (d) matched with the outer ring step (c), and the lining ring inner inclined ring surface (a), the inner layer cylinder inclined ring surface (b), the outer ring step (c), the inner ring step (d) and the lining ring end surface (e), which is intersected with the lining ring inner inclined ring surface (a) and is opposite to the outer layer cylinder (9), jointly enclose a first region to be;
the intersecting line of the inner inclined ring surface (a) of the lining ring and the end surface (e) of the lining ring falls onto the step (d) of the inner ring in the axial projection of the reactor;
A liner ring outer inclined ring surface (f) is arranged on one side, facing the corresponding outer layer cylinder body (9), of the outer ring of the liner ring, an annular groove (g) is formed in the position, opposite to the liner ring outer inclined ring surface (f), of the outer layer cylinder body (9), and the liner ring outer inclined ring surface (f), a liner ring end surface (e) which is intersected with the liner ring outer inclined ring surface (f) and opposite to the outer layer cylinder body (9) and the annular groove (g) form a second region (12) to be welded;
the intersecting line of the outer inclined ring surface (f) of the lining ring and the end surface (e) of the lining ring falls into the horizontal groove surface of the annular groove (g) in the axial projection of the reactor.
2. The thin-walled lining reactor according to claim 1, wherein the inner shell (6) and the outer shell (9) of the lower shell (5) are both composed of a straight cylinder section and a lower end socket, the straight cylinder section of the inner shell (6) and the lower end socket of the inner shell (6) are integrally formed, and the straight cylinder section of the outer shell (9) and the lower end socket of the outer shell (9) are integrally formed.
3. A thin-walled lined reactor as claimed in claim 1 wherein the material of the inner shell (6) is pure nickel N6 and the material of the outer shell (9) is S31608 IV.
4. a thin-walled lined reactor according to claim 1, wherein the first region to be welded (11) and the second region to be welded (12) are made of a welding material known as nicr N4.
5. A thin-walled lined reactor as claimed in claim 1 wherein the external diameter of the liner ring is greater than the external diameter of the inner shell (6) and less than the diameter of the flange at the corresponding location.
6. A method of manufacturing a thin-walled lined reactor according to any of claims 1 to 5, comprising the steps of:
S1, determining the set sizes of the outer layer cylinder (9) and the inner layer cylinder (6) after processing and forming, wherein the outer diameter of the used material is larger than the set sizes of the outer diameter of the outer layer cylinder (9) and the outer diameter of the inner layer cylinder (6), the inner diameter is smaller than the set sizes of the inner diameter of the outer layer cylinder (9) and the inner diameter of the inner layer cylinder (6), the length is larger than the set sizes of the straight section length of the outer layer cylinder (9) and the straight section length of the inner layer cylinder (6), the length of the inner layer cylinder (6) is larger than the length of the outer layer cylinder (9), and processing the outer layer cylinder (9) and the inner layer cylinder (6);
S2, sleeving the inner-layer cylinder (6) in the outer-layer cylinder (9) in an interference fit manner through a shrink fit process;
S3, flanging the upper shell (4) at the position opposite to the flange cover (3) to form an upper shell upper flange (101), and flanging the upper shell (4) and the lower shell (5) at the positions opposite to each other to form an upper shell lower flange (102) and a lower shell flange (103);
S4, processing and removing the redundant size of the inner layer cylinder (6) and the outer layer cylinder (9) relative to the set size;
S5, milling a first region to be welded and a second region to be welded on the end faces of the inner-layer cylinder (6) and the outer-layer cylinder (9) which are opposite to each other, and the end faces of the upper shell (4) which are opposite to each other and the liner rings of which the end faces correspond to the end faces of the flange cover (3), and milling a second region to be welded on the end face of the flange cover (3) which is opposite to the upper shell (4) and the liner ring (81) of the flange cover which is opposite to the flange cover (3);
S6, welding the first area to be welded and the second area to be welded, welding a flange backing ring (81) on a flange cover (3), welding an upper flange backing ring (82) on an upper shell on the end surface of the upper shell (4) opposite to the flange cover (3), welding a lower flange backing ring (83) on the end surface of the upper shell (4) opposite to a lower shell (5), and welding a lower flange backing ring (84) on the end surface of the lower shell (5) opposite to the upper shell (4);
s7, grinding the inner surface of the inner-layer cylinder (6) and the outer surface of the outer-layer shell until the inner-layer cylinder (6) and the outer-layer cylinder (9) meet the set size in the step S1;
s8, fastening pieces which are fastened and installed on the flange cover (3) and the upper flange plate (101) of the upper shell, sealing the upper end surfaces of the flange cover (3) and the upper shell (4), and fastening pieces which are fastened and installed on the lower flange plate (102) of the upper shell and the flange plate (103) of the lower shell; the lower end face of the upper shell (4) and the upper end face of the lower shell (5) are sealed.
7. the method of claim 6, wherein the outer shell (9) is fixed and heated to 350 ℃ and maintained at the same temperature for 1 hour in step S2 to ensure uniform temperature of the inner and outer walls, and the upper surface of the inner shell (6) is spot-welded with a fixing block for easy movement of the inner shell (6), and the fixing block is removed as an extra size in step S4.
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| CN201711278897.4A CN108160018B (en) | 2017-12-06 | 2017-12-06 | Thin-wall lining reactor and manufacturing method thereof |
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| CN102996790B (en) * | 2012-12-25 | 2015-05-06 | 西安优耐特容器制造有限公司 | Tantalum lining container |
| CN206587738U (en) * | 2016-12-15 | 2017-10-27 | 山东科技大学 | A kind of vacuum high-temperature closed reactor |
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