Positioning device and mounting welding method for an extraction column blow cup

Abstract

The application discloses a positioning device for an extraction column air blowing cup and a mounting and welding method, and belongs to the technical field of extraction column air blowing cup mounting and welding.The positioning device for the extraction column air blowing cup comprises a mounting and positioning mechanism and a fixing base, the fixing base is used for fixing and supporting the mounting and positioning mechanism, the mounting and positioning mechanism comprises a first positioning rod and a first connecting piece which are fixedly connected with each other, the air blowing cup, the first positioning rod and the axis of the cylinder body are parallel to each other, the first positioning rod is provided with a measuring scale and the two ends of the first positioning rod are fixedly connected with the first connecting piece and the fixing base respectively, the end of the first connecting piece, which is far away from the first positioning rod, penetrates into the air blowing cup and is matched and docked with the air blowing cup, and a boss which is used for abutting against the wedge-shaped end face of the air blowing cup is arranged on the first connecting piece; the axis of the first positioning rod coincides with the axis of the air blowing cup, and the height of the fixing base is adjustable.The application provides the positioning device for the extraction column air blowing cup and the mounting and welding method, the mounting and welding process of the air blowing cup can be accurately positioned, the mounting size of the air blowing cup can be accurately positioned, and the deformation of the air blowing cup can be limited.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of welding, and particularly relates to a positioning device for a gas blowing cup of an extraction column and a mounting and welding method. BACKGROUND

[0002] At present, the extraction column is a key equipment of a spent fuel reprocessing system, and its role is to separate the chemical unit operation of a homogeneous liquid mixture, which realizes the separation of mixture components by using the difference in the distribution of each solute component in two liquid phases. The gas blowing cup structure is usually used to measure the instantaneous pressure drop time sequence signal at the clarification section under the pulse extraction column. Therefore, the installation size precision of the gas blowing cup directly affects the difference between the actual gas-liquid interface and the theoretical gas-liquid interface, thereby affecting the real amplitude online measurement value. The common extraction column structure with small inner diameter of the cylinder is special, and the overall shape is slender, but the diameter is very small, which belongs to the slender equipment. The material is stainless steel, the inner diameter of the cylinder is very small, personnel cannot directly enter for installation and inspection of accessories, so the conventional assembly and inspection method is not applicable for this gas blowing cup. In order to achieve the monitoring of the gas-liquid interface, the installation size precision of this gas blowing cup is very high. The existing installation defects of the inclined pipe of the gas blowing cup are poor universality of the installation and positioning device and method between different types and specifications, which cannot meet the conditions of small inner diameter of the cylinder and high installation and welding size precision of the gas blowing cup, resulting in low positioning precision in the installation and welding process of the gas blowing cup, which affects the difference between the actual gas-liquid interface and the theoretical gas-liquid interface, thereby affecting the real amplitude online measurement value.

[0003] Therefore, a new technology is needed to solve the problem of low positioning size precision in the installation and welding process of the inclined pipe gas blowing cup in the prior art. SUMMARY

[0004] In order to solve the above problems in the prior art, the present application provides a positioning device for a gas blowing cup of an extraction column and a mounting and welding method, which has the effect of high installation size precision of the inclined pipe of the gas blowing cup.

[0005] The present application adopts the following technical solutions:

[0006] A positioning device for gas blowing cups of an extraction column, comprising a mounting positioning mechanism and a fixing base for fixing and supporting the mounting positioning mechanism, the mounting positioning mechanism comprising a first positioning rod and a first connecting piece fixedly connected with each other, each gas blowing cup being mounted in an extraction column cylinder body with its axis parallel to the axis of the cylinder body, the first positioning rod being detachably fixedly connected with the fixing base at its end away from the first connecting piece, the diameter of the first connecting piece being adapted to the inner diameter of the gas blowing cup, the end of the first connecting piece away from the first positioning rod being inserted into the gas blowing cup and detachably fixedly connected with the gas blowing cup, a boss being provided on the first connecting piece near the end thereof close to the first positioning rod and abutting against the wedge-shaped end face of the gas blowing cup.

[0007] The axis of the first positioning rod coincides with the axis of the gas blowing cup, the first positioning rod being provided with a measurement scale in the axial direction, and the first positioning rod and the axis of the cylinder body have an adjustable first spacing.

[0008] As a further improvement of the technical scheme of the present application, the mounting positioning mechanism further comprises a limiting plate between the first positioning rod and the first connecting piece, the limiting plate protruding from the end face of the first connecting piece to form the boss.

[0009] As a further improvement of the technical scheme of the present application, the side of the first connecting piece near the limiting plate has a first wedge-shaped face parallel to the wedge-shaped end face of the gas blowing cup, and the side of the first positioning rod near the limiting plate has a second wedge-shaped face parallel to the first wedge-shaped face.

[0010] As a further improvement of the technical scheme of the present application, the mounting positioning mechanism further comprises a first fixing piece, one end of the first fixing piece being fixedly connected with the first positioning rod and the other end of the first fixing piece being fixedly connected with the first connecting piece through the limiting plate.

[0011] As a further improvement of the technical scheme of the present application, a wedge-shaped gasket is further provided, a counterbore being provided on the end of the first positioning rod near the first connecting piece, and the wedge-shaped gasket being sleeved on the first fixing piece and located in the counterbore.

[0012] As a further improvement of the technical scheme of the present application, the welding limiting mechanism further comprises a second fixing member, one end of the second fixing member is fixedly connected with the second positioning rod, and the other end of the second fixing member is fixedly connected with the connecting segment through the limiting segment.

[0013] A limiting portion is arranged on the limiting segment, the limiting portion is located above the blow cup and between the blow cup and the inner wall of the cylinder body, and the limiting portion abuts against the upper end of the blow cup.

[0014] The axis of the second positioning rod coincides with the axis of the blow cup, the second positioning rod is axially provided with a measurement scale, and the second positioning rod has an adjustable second spacing between the axis of the second positioning rod and the axis of the cylinder body.

[0015] As a further improvement of the technical scheme of the present application, the welding limiting mechanism further comprises a second fixing member, one end of the second fixing member is fixedly connected with the second positioning rod, and the other end of the second fixing member is fixedly connected with the connecting segment through the limiting segment.

[0016] As a further improvement of the technical scheme of the present application, the fixing seat comprises a base and a stand column, the lower end of the stand column is inserted into the base and is in sliding connection with the base, the stand column is perpendicular to the first positioning rod or the second positioning rod, the upper end of the stand column is provided with a first guide groove, and the first positioning rod or the second positioning rod is embedded in the first guide groove and is in sliding connection with the stand column.

[0017] A mounting and welding method of a blow cup of an inclined insertion pipe of an extraction column, comprising the positioning device of the blow cup of the extraction column as described above, and comprising the following steps:

[0018] S1. After the mounting and positioning mechanism is assembled, the blow cup to be installed is sleeved on the first connecting segment until abutting against the boss, then the blow cup is sent into the cylinder body of the extraction column from the port of the extraction column, and is sent to the position of the blow cup to be installed farthest from the port of the extraction column, according to the design requirement of the positioning size process value, the fixing seat is installed below the first positioning rod;

[0019] S2. Blow cup positioning: the measurement scale on the first positioning rod is observed, the first positioning rod is moved left and right to adjust the spacing between the blow cup and the port of the extraction column, the height of the fixing seat is adjusted to adjust the spacing between the axis of the blow cup and the axis of the cylinder body, and the angle of the blow cup inclined insertion pipe relative to the cylinder body of the extraction column is manually adjusted.

[0020] S3. Blow cup overall position detection: a special tool is used to detect the angle between the inclined insertion pipe of the blow cup and the extraction column cylinder body, and whether the position of the blow cup in the extraction column cylinder body meets the design requirements, if it meets the design requirements, the blow cup positioning is completed and step S4 is performed, if it does not meet the design requirements, step S2 is repeated;

[0021] S4. After the blow cup positioning is completed, the inclined insertion pipe of the blow cup located outside the cylinder body is temporarily fixed with the cylinder body, and the fixing seat and the mounting positioning mechanism are removed;

[0022] S5. Assemble the welding limiting mechanism with the fixing seat before welding the blow cup, adjust the second spacing to be equal to the first spacing, after assembly, insert one end of the second connecting piece into the cylinder body and butt joint with the blow cup, make the wedge-shaped end face of the blow cup abut against the limiting section, and the limiting part is inserted between the blow cup and the inner wall of the cylinder body, the upper end of the limiting part abuts against the blow cup, and the measurement scale on the second positioning rod is observed at the same time;

[0023] S6. Welding between the blow cup and the extraction column cylinder body is performed, and after the welding is completed, the fixing seat and the welding positioning mechanism are removed;

[0024] S7. According to the actual number of blow cups to be welded and installed, steps S1 to S6 are repeated to complete the number of blow cups to be welded and installed.

[0025] As a further improvement of the technical scheme of the present application, the blow cup is temporarily fixed before the overall position detection of the blow cup in step S3.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] According to the design requirement positioning size process value, the scale value on the first positioning rod is observed, the spacing between the wedge-shaped port of the blow cup and the port of the extraction column is adjusted by moving the first positioning rod left and right, thereby realizing the accurate positioning of the blow cup in the axial direction of the cylinder body, the spacing between the first positioning rod and the axis of the cylinder body is adjusted by adjusting the height of the fixing seat, so that the axis of the first positioning rod coincides with the axis of the blow cup, and the axis between the blow cup and the cylinder body is adjusted to the design requirement positioning size process requirement, thereby realizing the accurate positioning of the blow cup in the radial direction of the cylinder body. BRIEF DESCRIPTION OF DRAWINGS

[0028] The technology of the present application will be further described in detail below in combination with the drawings and specific embodiments:

[0029] Figure 1 is a structure schematic view of the mounting positioning mechanism of the present application in use;

[0030] Figure 2 is the structure schematic view of the installation positioning mechanism structure;

[0031] Figure 3 is the structure schematic view of the connection node of the first connecting piece, the limiting plate and the first positioning rod;

[0032] Figure 4 is the structure schematic view of the connection structure of the fixed seat and the first positioning rod in side view;

[0033] Figure 5 is the structure schematic view of the welding limiting mechanism in use;

[0034] Figure 6 is the connection structure schematic view of the welding limiting mechanism and the fixed seat;

[0035] Figure 7 is the structure schematic view of the welding limiting mechanism;

[0036] Figure 8 is the connection structure schematic view of the first positioning rod and the fixed seat;

[0037] Figure 9 is the connection structure schematic view of the fixed seat and the second positioning rod in side view.

[0038] Reference signs:

[0039] 1-installation positioning mechanism; 11-first positioning rod; 111-second wedge surface; 12-first connecting piece; 121-first wedge surface; 13-limiting plate; 14-first fixing piece; 15-wedge washer;

[0040] 2-fixed seat; 21-base; 211-second guide groove; 22-stand column; 221-first guide groove;

[0041] 3-cylinder;

[0042] 4-blowing cup; 41-inclined insertion pipe;

[0043] 5-welding limiting mechanism; 51-second connecting piece; 511-connection section; 5111-fourth wedge surface; 512-limiting section; 5121-limiting part; 5122-third wedge surface; 513-notch; 52-second positioning rod; 53-second fixing piece. DETAILED DESCRIPTION

[0044] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, scheme and effect of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The same reference signs used in the drawings indicate the same or similar parts.

[0045] It should be noted that, unless otherwise specified, when a certain feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and the like used in the present application are only relative to the mutual position relationship of the components of the present application in the drawings.

[0046] Referring to Figures 1 to 9 A positioning device for a gas blowing cup of an extraction column, which can be applied to the welding process of an inclined insertion pipe 41 of a pulse baffle type extraction column gas blowing cup, comprises a mounting and positioning mechanism 1 and a fixed seat 2. When mounting and positioning, the fixed seat 2 is used to fix and support the mounting and positioning mechanism 1, and the mounting and positioning mechanism 1 is used to position the gas blowing cup 4 during mounting. The height of the fixed seat 2 is adjustable, and a measurement scale can be provided on the fixed seat 2 to make the height adjustment of the fixed seat 2 more accurate in numerical value. The mounting and positioning mechanism 1 comprises a first positioning rod 11 and a first connecting piece 12 which are fixedly connected to each other. Each gas blowing cup 4 is mounted in an extraction column cylinder body 3, and the gas blowing cup 4 is hollow. One end of the central hole of the gas blowing cup 4 communicates with the inclined insertion pipe 41, and the plane where the port of the other end is located is inclined to form a hollow wedge-shaped end face. The inclined insertion pipe 41 of the gas blowing cup 4 extends out of the cylinder body 3 through the side wall of the cylinder body 3, and the axis of each gas blowing cup 4 is parallel to the axis of the cylinder body 3. The end of the first positioning rod 11 away from the first connecting piece 12 is detachably fixedly connected to the fixed seat 2. The specific fixed connection mode can be sliding connection, and the vertical height of the axis of the first positioning rod 11 can be adjusted by adjusting the height of the fixed seat 2. The diameter of the first connecting piece 12 is matched with the inner diameter of the gas blowing cup 4. The end of the first connecting piece 12 away from the first positioning rod 11 extends into the gas blowing cup 4 and is detachably fixedly connected to the gas blowing cup 4. The gas blowing cup 4 can be sleeved on the outside of the end of the first connecting piece 12 away from the first positioning rod 11. A boss abutting against the wedge-shaped end face of the gas blowing cup 4 is arranged on the end of the first connecting piece 12 close to the first positioning rod 11. During use, the first connecting piece 12 is inserted into the gas blowing cup 4 by moving the first positioning rod 11 until the wedge-shaped end face of the gas blowing cup 4 abuts against the boss.

[0047] The axis of the first positioning rod 11 coincides with the axis of the blowing cup 4, the first positioning rod 11 is provided with a measuring scale in the axial direction, and the first positioning rod 11 has an adjustable first spacing with the axis of the cylinder body 3. According to the design requirement of the positioning size process value, the spacing between the wedge-shaped port of the blowing cup 4 and the port of the extraction column can be adjusted by moving the first positioning rod 11 left and right, so as to realize the accurate positioning of the blowing cup 4 in the axial direction inside the cylinder body 3. By adjusting the height of the fixed seat 2 to adjust the spacing between the first positioning rod 11 and the axis of the cylinder body 3, the axis of the first positioning rod 11 coincides with the axis of the blowing cup 4, and the axis between the axis of the blowing cup 4 and the cylinder body 3 is adjusted to the design requirement of the positioning size process requirement, so as to realize the accurate positioning of the blowing cup 4 in the radial direction inside the cylinder body 3.

[0048] Specifically, the mounting and positioning mechanism 1 further comprises a limiting plate 13 located between the first positioning rod 11 and the first connecting piece 12, the limiting plate 13 forms the boss, the limiting plate 13 protrudes from the end face of the first connecting piece 12 to form the boss, the diameter of the first positioning rod 11 is smaller than the length of the limiting plate 13 in the radial direction of the first positioning rod 11, and the diameter of the first positioning rod 11 is smaller to facilitate the movement adjustment of the first positioning rod 11 inside the cylinder body 3, and to save the manufacturing material of the first positioning rod 11 and save the cost. Among them, the projection area of the limiting plate 13 in the axial direction of the cylinder body 3 is greater than the projection area of the first connecting piece 12 in the axial direction of the cylinder body 3.

[0049] Specifically, one side of the first connecting piece 12 close to the limiting plate 13 has a first wedge surface 121 parallel to the wedge-shaped end face of the blowing cup 4, and one side of the first positioning rod 11 close to the limiting plate 13 has a second wedge surface 111 parallel to the first wedge surface 121. The limiting plate 13 is inclinedly arranged between the first wedge surface 121 and the second wedge surface 111 which are parallel to each other, so that the limiting plate 13 is parallel to the wedge-shaped end face, so as to facilitate the complete fit of the wedge-shaped end face of the blowing cup 4 and the limiting plate 13.

[0050] Specifically, the mounting and positioning mechanism 1 further comprises a first fixing piece 14 for fixedly connecting the first positioning rod 11, the limiting plate 13 and the first connecting piece 12, one end of the first fixing piece 14 is fixedly connected with the first positioning rod 11, and the other end is fixedly connected with the first connecting piece 12 through the limiting plate 13.

[0051] Specifically, the positioning device of the extraction column blow cup of the present scheme further comprises a wedge-shaped washer 15, the first fixing member 14 can be preferably a bolt, the first positioning rod 11 is provided with a counterbore at one end close to the first connecting member 12, a part of the first fixing member 14 is embedded in the counterbore, the wedge-shaped washer 15 is sleeved outside the first fixing member 14 and located in the counterbore, the setting of the wedge-shaped washer 15 makes the first fixing member 14 tightly connected with the inner wall of the counterbore, which can avoid the first fixing member 14 from shaking in the counterbore, when the first fixing member 14 is preferably a bolt, the end with the nut is inserted into the counterbore, the size of the nut is matched with the diameter of the counterbore, the wedge-shaped washer 15 is sleeved outside the screw rod structure of the bolt, and one end can abut against the nut, the setting of the wedge-shaped washer 15 avoids the end with the nut from shaking in the counterbore.

[0052] Specifically, the positioning device of the extraction column blow cup of the present scheme further comprises a welding limiting mechanism 5, which is used to limit the displacement of the blow cup 4 during welding, at this time, the fixing seat 2 is used to fix and support the welding limiting mechanism 5, the welding limiting mechanism 5 comprises a second connecting member 51 and a second positioning rod 52 connected with each other, the second connecting member 51 is provided with a connecting section 511 and a limiting section 512 fixedly connected with each other, the connecting section 511 and the limiting section 512 are non-integrated structures, the connecting section 511 and the limiting section 512 are connected in a detachable manner, one end of the second positioning rod 52 is detachably fixedly connected with the fixing seat 2, the other end is fixedly connected with one end of the limiting section 512 away from the connecting section 511, the diameter of the connecting section 511 is matched with the inner diameter of the blow cup 4, the connecting section 511 extends into the blow cup 4 and is detachably fixedly connected with the blow cup 4, the wedge-shaped end face of the blow cup 4 abuts against the limiting section 512, which can prevent the blow cup 4 from moving towards the first positioning rod 11 during welding, and the direction of pre-deformation of the blow cup 4 is constrained, so as to ensure the installation size of the blow cup 4 after welding.

[0053] The limiting section 512 is provided with a limiting portion 5121 located above the blow cup 4 and between the blow cup 4 and the inner wall of the cylinder 3, and the limiting portion 5121 abuts against the outer side face of the upper end of the blow cup 4, which can prevent the blow cup 4 from moving upward during welding.

[0054] The axis of the second positioning rod 52 coincides with the axis of the blow cup 4, the second positioning rod 52 is axially provided with a measurement scale, and the second positioning rod 52 has an adjustable second spacing with the axis of the cylinder 3.

[0055] Specifically, the limiting section 512 is provided with a third wedge surface 5122 parallel to the wedge surface of the blowing cup 4 and abutting against each other at one end close to the blowing cup 4, and the connecting section 511 is provided with a fourth wedge surface 5111 abutting against the third wedge surface 5122, the fourth wedge surface 5111 coincides with the wedge surface of the blowing cup 4, the limiting part 5121 is parallel to the axis of the cup body of the blowing cup 4, and the connecting node between the limiting part 5121 and the third wedge surface 5122 is provided with a notch or a chamfer, so as to adapt to the edge or the cup opening structure of the wedge surface of the blowing cup 4, so that the connecting node has enough space to accommodate the edge or the cup opening structure of the wedge surface of the blowing cup 4.

[0056] Specifically, the welding limiting mechanism 5 further comprises a second fixing member 53, one end of the second fixing member 53 is fixedly connected with the second positioning rod 52, and the other end is fixedly connected with the connecting section 511 through the limiting section 512.

[0057] Specifically, the fixing seat 2 comprises a base 21 and a column 22, the base 21 is provided with a second guide groove 211, when the column 22 is in a cylindrical structure, the second guide groove 211 can be preferably a counterbore structure with only one end having an opening, or a through groove or a through hole structure with both upper and lower ends having openings, and the structure is matched with the structure of the column 22, the lower end of the column 22 is inserted into the second guide groove 211 and is in sliding connection with the base 21, the overall height of the fixing seat 2 can be adjusted by the sliding of the column 22 in the second guide groove 211, thereby adjusting the distance between the axis of the first positioning rod 11 or the second positioning rod 52 and the axis of the cylinder 3, the column 22 is provided with a measurement scale, the position of the first positioning rod 11 or the second positioning rod 52 in the radial direction of the cylinder 3 can be accurately positioned by observing the measurement scale on the column 22, thereby accurately positioning the position of the blowing cup 4 in the radial direction of the cylinder 3, the column 22 is perpendicular to the first positioning rod 11 or the second positioning rod 52, the upper end of the column 22 is provided with a first guide groove 221, the first positioning rod 11 or the second positioning rod 52 is embedded in the first guide groove 221 and is in sliding connection with the column 22, when the fixing seat 2 is used to support the mounting positioning mechanism 1, the first positioning rod 11 can slide in the first guide groove 221, when the fixing seat 2 is used to support the welding limiting mechanism 5, the second positioning rod 52 can slide in the first guide groove 221, the second positioning rod 52 is provided with a measurement scale, the position of the blowing cup 4 in the axial direction of the cylinder 3 can be adjusted by observing the scale value of the second positioning rod 52 when the second positioning rod 52 is moved, thereby realizing accurate butt joint of the blowing cup 4 and the second connecting member 51 during welding.

[0058] Specifically, the column 22 is used to provide support for the first positioning rod 11 or the second positioning rod 52, and to realize the adjustment of the vertical height, so the column 22 is not limited to the columnar structure, and according to the actual use, the column 22 can adopt the plate structure, when the column 22 adopts the plate structure, the thickness direction of the column 22 is the same as the axis direction of the first positioning rod 11 or the second positioning rod 52, the length of the second guide groove 211 is equal to the thickness of the column 22, the base 21 is provided with two symmetrical positioning plates, the two positioning plates have a first spacing which is adapted to the thickness of the column 22, the column 22 is embedded in the first spacing and fixedly connected with the base 21, the two sides of the column 22 are respectively abutted with the two positioning plates, and the space where the first spacing is located forms the second guide groove 211, at this time, the two positioning plates are perpendicular to the column 22 of the plate structure.

[0059] Specifically, a measurement scale can be arranged on the column 22 and the base 21, so as to facilitate the observation and reading of the spacing between the two ends of the column 22 and the base 21, and facilitate the adjustment of the spacing between the first positioning rod 11 or the second positioning rod 52 and the axis of the extraction column cylinder 3, thereby facilitating the adjustment of the spacing between the axis of the blowing cup 4 and the axis of the extraction column cylinder 3.

[0060] An installation and welding method of an extraction column inclined pipe blowing cup, comprising the positioning device of the extraction column blowing cup as described above, characterized in that it comprises the following steps:

[0061] S1. After the installation positioning mechanism 1 is assembled, the blowing cup 4 to be installed is sleeved on the first connecting piece 12 until it is abutted with the boss, then the blowing cup 4 is sent into the inside of the extraction column cylinder 3 from the extraction column port, and is sent to the position of the blowing cup 4 farthest from the extraction column port, according to the design required positioning size process value, the fixed seat 2 is installed below the first positioning rod 11.

[0062] S2. Blowing cup 4 positioning: observing the measurement scale on the first positioning rod 11 and adjusting the spacing between the blowing cup 4 and the extraction column port by moving the first positioning rod 11 left and right, adjusting the spacing between the axis of the blowing cup 4 and the axis of the cylinder 3 by adjusting the height of the fixed seat 2, and manually adjusting the angle and relative position between the inclined pipe 41 of the blowing cup 4 and the extraction column cylinder 3.

[0063] S3. Blowing cup 4 overall position detection: before the overall position detection of the blowing cup 4, the blowing cup 4 is temporarily fixed, a special tool is used to detect the angle between the inclined pipe 41 of the blowing cup 4 and the extraction column cylinder 3, and whether the position of the blowing cup 4 in the extraction column cylinder 3 meets the design requirement, if it meets the design requirement, the positioning of the blowing cup 4 is completed and step S4 is performed, if it does not meet the design requirement, step S2 is repeated. Wherein, when detecting, the fixed seat 2 and the installation positioning mechanism 1 can be taken out from the extraction column cylinder, so as to facilitate the detection of the position of the blowing cup 4 in the extraction column cylinder.

[0064] S4. After the positioning of the blow cup 4 is completed, the inclined pipe 41 of the blow cup 4 located outside the cylinder 3 is temporarily fixed with the cylinder 3, and the fixing seat 2 and the mounting positioning mechanism 1 are removed before step S5 is performed.

[0065] S5. The welding limiting mechanism 5 is assembled with the fixing seat 2 before the blow cup 4 is welded, the second spacing is adjusted to be equal to the first spacing, one end of the second connecting piece 51 is inserted into the cylinder 3 after the assembly is completed, and the blow cup 4 is butted, the wedge-shaped end surface of the blow cup 4 is butted with the limiting section 512, the limiting part 5121 is inserted between the blow cup 4 and the inner wall of the cylinder 3, the upper end of the blow cup 4 is butted with the limiting part 5121, and the measuring scale on the second positioning rod 52 is observed at the same time.

[0066] S5. The welding between the inclined pipe 41 of the blow cup 4 and the extraction column cylinder 3 is performed, and the fixing seat 2 and the welding positioning mechanism are removed after the welding is completed.

[0067] S7. According to the actual number of the blow cup 4 to be installed and welded, steps S1 to S5 are repeated to complete the number of the blow cup 4 to be installed and welded, wherein the spacing between two adjacent blow cups 4 can be adjusted according to the actual design requirements.

[0068] Other contents of the positioning device and the installation and welding method of the extraction column blow cup are described in the prior art, and will not be described here.

[0069] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any modification, equivalent change and modification of the above embodiment according to the technical essence of the present application, which does not deviate from the technical solution content of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A method of installing and welding a tilted extraction column spool blow cup comprising an extraction column blow cup positioning device, characterized by: The positioning device comprises a mounting positioning mechanism and a fixing base for fixing the mounting positioning mechanism, the mounting positioning mechanism comprises a first positioning rod and a first connecting piece fixedly connected with each other, each blowing cup is mounted in the extraction column cylinder body, and the axis of each blowing cup is parallel to the axis of the cylinder body, the first positioning rod is detachably fixedly connected with the fixing base at the end away from the first connecting piece, the diameter of the first connecting piece is matched with the inner diameter of the blowing cup, the end of the first connecting piece away from the first positioning rod extends into the blowing cup and is detachably fixedly connected with the blowing cup, and a boss abutting against the wedge-shaped end surface of the blowing cup is arranged on the end of the first connecting piece close to the first positioning rod; The axis of the first positioning rod coincides with the axis of the blowing cup, the first positioning rod is axially provided with a measurement scale, and the first positioning rod has an adjustable first spacing with the axis of the cylinder body; The mounting and welding method of the extraction column inclined pipe blowing cup comprises the following steps: S1. After the mounting positioning mechanism is assembled, the to-be-mounted blowing cup is sleeved on the first connecting piece until it abuts against the boss, then the blowing cup is sent into the extraction column cylinder body from the extraction column port, and is sent to the position of the to-be-mounted blowing cup farthest away from the extraction column port, the fixing base is installed below the first positioning rod according to the design positioning size process value; S2. Blowing cup positioning: the measurement scale on the first positioning rod is observed, the first positioning rod is moved left and right to adjust the spacing between the blowing cup and the extraction column port, the height of the fixing base is adjusted to adjust the spacing between the axis of the blowing cup and the axis of the cylinder body, and the angle of the inclined pipe of the blowing cup relative to the extraction column cylinder body is manually adjusted; S3. Blowing cup overall position detection: a special tool is used to detect the angle between the inclined pipe of the blowing cup and the extraction column cylinder body, and whether the position of the blowing cup in the extraction column cylinder body meets the design requirement is detected, if the design requirement is met, the blowing cup positioning is completed and step S4 is performed, and if the design requirement is not met, step S2 is repeated; S4. After the blowing cup positioning is completed, the inclined pipe of the blowing cup outside the cylinder body is temporarily fixed with the cylinder body, and the fixing base and the mounting positioning mechanism are removed; S5. The welding limiting mechanism is assembled with the fixing base before the blowing cup is welded, the second spacing is adjusted to be equal to the first spacing, one end of the second connecting piece is inserted into the cylinder body and is connected with the blowing cup after the assembly is completed, the wedge-shaped end surface of the blowing cup abuts against the limiting section, the limiting part is inserted between the blowing cup and the inner wall of the cylinder body, the upper end of the limiting part abuts against the blowing cup, and the measurement scale on the second positioning rod is observed; S6. The welding between the blowing cup and the extraction column cylinder body is performed, and the fixing base and the welding positioning mechanism are removed after the welding is completed; S7. According to the actual number of to-be-mounted and welded blowing cups, steps S1 to S6 are repeated to complete the number of all to-be-mounted and welded blowing cups.

2. The method of installing and welding of the extraction column inclined plug tube blow cup according to claim 1, characterized in that: The mounting positioning mechanism further comprises a limiting plate between the first positioning rod and the first connecting piece, and the limiting plate protrudes from the end face of the first connecting piece to form the boss.

3. The method of claim 2, wherein: The first connecting piece has a first wedge-shaped face on the side close to the limiting plate, which coincides with the wedge-shaped end face of the blowing cup, and the first positioning rod has a second wedge-shaped face on the side close to the limiting plate, which is parallel to the first wedge-shaped face.

4. The method of claim 3, wherein: The mounting positioning mechanism further comprises a first fixing piece, one end of which is fixedly connected with the first positioning rod, and the other end of which is fixedly connected with the first connecting piece through the limiting plate.

5. The method of claim 4, wherein: The mounting positioning mechanism further comprises a wedge-shaped washer, and the first positioning rod has a counterbore at the end close to the first connecting piece, and the wedge-shaped washer is sleeved outside the first fixing piece and located in the counterbore.

6. The method of installing and welding of extraction column off-set pipe blow cup as claimed in claim 1 wherein: The positioning device further comprises a welding limiting mechanism, and the fixed seat is used for fixing and supporting the welding limiting mechanism, the welding limiting mechanism comprises a second connecting piece and a second positioning rod connected with each other, the second connecting piece is provided with a connecting section and a limiting section fixedly connected with each other, one end of the second positioning rod is detachably fixedly connected with the fixed seat, and the other end of the second positioning rod is fixedly connected with one end of the limiting section away from the connecting section, the diameter of the connecting section is matched with the inner diameter of the blowing cup, the connecting section is inserted into the blowing cup and is detachably fixedly connected with the blowing cup, and the wedge-shaped end face of the blowing cup abuts against the limiting section; The limiting section is provided with a limiting part located above the blowing cup and between the blowing cup and the inner wall of the cylinder body, and the limiting part abuts against the upper end of the blowing cup; The axis of the second positioning rod coincides with the axis of the blowing cup, the second positioning rod is axially provided with a measurement scale, and the second positioning rod has an adjustable second spacing with the axis of the cylinder body.

7. The method of claim 6, wherein: The welding limiting mechanism further comprises a second fixing piece, one end of which is fixedly connected with the second positioning rod, and the other end of which is fixedly connected with the connecting section through the limiting section.

8. The method of claim 6, wherein: The fixed seat comprises a base and a stand, the lower end of the stand is inserted into the base and is slidingly connected with the base, the stand is perpendicular to the first positioning rod or the second positioning rod, the upper end of the stand is provided with a first guide groove, and the first positioning rod or the second positioning rod is embedded in the first guide groove and is slidingly connected with the stand.

9. The method of welding an extraction column skid to a blow cup as defined in claim 1, wherein: In step S3, the blowing cup is temporarily fixed before position detection. In step S3, the blowing cup is temporarily fixed before position detection.

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