CN113878529A - High-precision alignment manufacturing method and device for shell-and-tube heat exchanger - Google Patents
High-precision alignment manufacturing method and device for shell-and-tube heat exchanger Download PDFInfo
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- CN113878529A CN113878529A CN202111382940.8A CN202111382940A CN113878529A CN 113878529 A CN113878529 A CN 113878529A CN 202111382940 A CN202111382940 A CN 202111382940A CN 113878529 A CN113878529 A CN 113878529A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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Abstract
The invention provides a high-precision alignment manufacturing method and device for a shell-and-tube heat exchanger, which comprises the following steps: arranging the three circular plates vertically and in parallel with each other; the four pull wires simultaneously and sequentially pass through the three circular plates; the stay wires are adjusted to be not wound and straightened in the through hole of the circular plate and are parallel to the direction of the through pipe in the heat exchanger, so that the four stay wires are not contacted with the edge of the through hole of the pipe plate; after the alignment correction is finished, the three circular plates are rechecked to ensure that each sub-stay wire is not supported and deformed by the wall of the through hole of the tube plate; after the alignment work is finished, the pull rod penetrates through the through holes in the circular plates, and then the three circular plates and the pull rod are welded and fixed; and (5) checking the alignment effect. The high-precision alignment manufacturing method and device for the shell-and-tube heat exchanger provided by the invention aim at the technical problem of alignment of the tube plate through hole of the shell-and-tube heat exchanger, simplify the tube penetrating process and improve the processing precision of the shell-and-tube heat exchanger.
Description
Technical Field
The invention belongs to the technical field of heat exchangers, and particularly relates to a high-precision alignment manufacturing method and device for a shell-and-tube heat exchanger.
Background
The shell-and-tube heat exchanger is an energy-saving facility for transferring heat between two fluid media with different temperatures, and is widely applied to industries such as petroleum, chemical engineering, metallurgy, electric power, light industry, food and the like. The shell-and-tube heat exchanger mainly comprises a heat exchange tube bundle, two tube plates and a plurality of baffle plates. At present, the following technical problems often occur in the production process of a shell-and-tube heat exchanger: the tube plate through holes on the two tube plates and the plurality of baffle plates cannot be aligned, and when the heat exchange tube is penetrated, the tube plates are blocked and the front end of the heat exchange tube bundle cannot penetrate through the tube plate holes and the baffle plate through holes.
At present, a worker often passes a heat exchange tube bundle through a tube plate and a tube plate through hole of each baffle plate in a knocking mode, the heat exchange tube bundle and the baffle plates are easily damaged in the knocking mode, and potential safety hazards are buried in the operation of a subsequent shell-and-tube heat exchanger. Along with the gradual development to the automation mode of machine-building trade, automatic equipment promotes to manufacturing accuracy requirement, consequently, in this scheme, solves to how to make the shell and tube heat exchanger carry out this technical problem of alignment manufacturing of high accuracy.
At present, the existing tube plate through hole alignment technology generally adopts a single detection point, for example, if laser is injected from one end to the center of a tube plate through hole, whether a laser point can be observed from the tail end is judged, and if the laser point is observed, the tube plate through hole is considered to be aligned. Although the detection mode can reduce the alignment error in the manufacturing process of the heat exchanger and can not cause the situation that the heat exchange tube cannot enter the tube plate through hole in the tube penetrating process, the mode of marking the central position can not ensure that the peripheries of the tube plate through holes are aligned, and certain errors still exist among the tube plate through holes. The technical problem is solved in the scheme.
Disclosure of Invention
The invention aims to provide a high-precision alignment manufacturing method and device for a shell-and-tube heat exchanger, which solve the technical problem of aligning tube plate through holes for the shell-and-tube heat exchanger, simplify the tube penetrating process and improve the processing precision of the shell-and-tube heat exchanger.
A high-precision alignment manufacturing method for a shell-and-tube heat exchanger comprises the following specific steps:
step S1: arranging the three circular plates vertically and in parallel with each other;
step S2: enabling four pull wires to simultaneously and sequentially penetrate through the three circular plates, wherein the four pull wires are positioned in the same through hole of the circular plates;
step S3: adjusting the stay wires to be not wound and straightened in the through holes of the circular plates and to be parallel to the direction of the through pipe in the heat exchanger, ensuring that the four stay wires are not contacted with the edges of the through holes of the pipe plates, and finishing the alignment and correction of the three circular plates;
step S4: after the alignment correction is finished, the three circular plates are checked again to ensure that each sub-stay wire is not supported and deformed by the wall of the through hole of the tube plate, and the alignment work is finished at the moment;
step S5: after the alignment work is finished, the pull rod penetrates through the through holes in the circular plates, the diameter of each through hole is different from that of the corresponding pull rod by 0.1mm, then the three circular plates and the pull rod are welded and fixed, and after the welding is finished, the tube plate and the baffle plate are fixed;
step S6: and (5) checking the alignment effect.
In step S6, the specific checking step of the alignment effect is as follows:
(1) taking down the centering module from the circular plate, randomly selecting a tube plate through hole, and inspecting the alignment effect;
(2) the centering module is taken down from the front end tube plate and the rear end tube plate, a tube plate through hole is randomly selected, the heat exchange tube is subjected to a tube penetrating process, the heat exchange tube can easily pass through the internal baffle plate at the moment, resistance-free rotation can be carried out in the tube plate through hole, and the success of alignment work is proved.
The high-precision alignment manufacturing device for the shell-and-tube heat exchanger comprises a fixed base plate and three fine adjustment bases arranged in parallel on the fixed base plate, wherein the fine adjustment bases are vertically provided with a front end tube plate, a baffle plate and a rear end tube plate in sequence, the front end tube plate, the baffle plate and the rear end tube plate are respectively provided with a through hole, a plurality of stay wires are arranged in the through holes in the three plates in a penetrating mode, two stay wire alignment modules are connected to two ends of each stay wire and are arranged on the front end tube plate and the rear end tube plate respectively.
The fine adjustment base is provided with a fine adjustment knob mechanism, the fine adjustment knob mechanism is connected with the front end tube plate, the baffle plate or the rear end tube plate, and the fine adjustment base is further provided with a level gauge.
The stay wire aligning module comprises two strip-shaped fixed end plates parallel to each other and two positioning strips connected with the fixed end plates, wherein fixed holes are formed in the fixed end plates, pull wire holes are formed in the positioning strips, and a wire collecting groove is formed in the space between the fixed end plates.
The fixed end plate is connected with the centering module through a bolt, the bolt is arranged in the fixed hole, one end of each stay wire is fixed in the stay wire hole, and the stay wires are connected with the centering module.
A threaded hole is formed in the center of the centering module, four wire grooves parallel to the threaded hole are formed in the outer side of the centering module, a circumferential groove is formed in the outer side of the centering module, a clamping groove is formed in the bottom surface of one end of the centering module, and the clamping groove is connected with the fixed end plate in a clamping mode;
the four pull wires are respectively arranged in the wire grooves and are fixed through the elastic belts in the grooves.
A fixed cylinder is coaxially arranged outside the through hole of the baffle plate, a telescopic cylinder is coaxially arranged inside the fixed cylinder, the inner end of the telescopic cylinder is slidably arranged in the fixed cylinder, a filling cylinder and a bearing cylinder are vertically arranged at the position, close to the outer end, of the telescopic cylinder, and the filling cylinder is communicated with the inner side of the telescopic cylinder;
one end of the bearing cylinder is communicated with the telescopic cylinder, the other end of the bearing cylinder is arranged in a closed manner, and the filling cylinder and the bearing cylinder are arranged on the same center line;
the pull wire penetrates through the fixed cylinder and the telescopic cylinder.
The through holes are provided with a plurality of through holes, and the stay wires penetrating through the same through hole are provided with four stay wires.
The invention achieves the following remarkable effects:
(1) the scheme adopts four stay wires as four monitoring points on the circumference of the tube plate through hole, so that the stay wires penetrate through the front tube plate and the rear tube plate and the baffle plate and are tightened in parallel, the concentricity of the tube plate through hole can be ensured to the maximum extent, and the problems that the stay wires are bent or the front tube plate and the rear tube plate and the baffle plate are stressed too much due to the tightening phenomenon of the stay wires exist when the tube plate and the baffle plate are not aligned, so that the positions of the front tube plate and the rear tube plate and the baffle plate can be conveniently adjusted by people, the alignment effect can be fed back and adjusted, the applicability is higher, and the operation is convenient and quick;
(2) according to the scheme, the fixed end plate and the centering module are arranged, four wire grooves are formed in the centering module and accommodate four pull wires, when the four pull wires are tightened, the pull wires on two sides of the baffle plate are more easily in the same straight line state according to a triangular stability rule, and the tightened four pull wires can reversely drive through holes in the front and rear tube plates and the baffle plate to be in an aligned state;
(3) the scheme is provided with a fixed cylinder, a telescopic cylinder, a bearing cylinder and a filling cylinder, and considering the flexibility characteristic of the stay wires, in order to further ensure that all the stay wires are in a stretched state, ink is injected into the filling cylinder, redundant ink can enter the bearing cylinder, the telescopic cylinder is rotated by a certain angle, so that each position on the inner side of the telescopic cylinder is fully stained with the ink, the telescopic cylinder is moved, when the stay wires have certain curvature, at least one of the four stay wires is not fully stained with the ink, otherwise, the four stay wires are fully stained with the ink;
in addition, the fixed cylinder and the telescopic cylinder also have the function of protecting the stay wire, so that the phenomenon that the stay wire is bent or even broken due to contact caused by improper operation is prevented.
Drawings
FIG. 1 is a schematic view of a fixing structure of a tube plate and a baffle plate in an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a centering module in an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a fixed end plate in an embodiment of the invention.
Fig. 4 is a schematic structural diagram of a wire alignment module according to an embodiment of the present invention.
FIG. 5 is a schematic structural view of a stay wire penetrating through a tube plate through hole and a baffle plate through hole in the embodiment of the invention.
Fig. 6 is a schematic view of an assembly structure of the centering module, namely the fixed end plate in the embodiment of the invention.
Fig. 7 is a schematic view of the mounting structure of the wire alignment device in an embodiment of the invention.
Fig. 8 is a schematic view of an installation structure of the fixed cylinder and the telescopic cylinder in the embodiment of the invention.
Wherein the reference numerals are: 1. a tube sheet; 2. finely adjusting the base; 3. finely adjusting a knob; 4. a level gauge; 5. fixing the bottom plate; 6. a baffle plate; 6-1, fixing the cylinder; 6-2, a telescopic cylinder; 6-3, a bearing cylinder; 6-4, filling the cylinder; 7. a centering module; 8. a wire slot; 9. a threaded hole; 10. a groove; 11. a card slot; 12. fixing the end plate; 13. a fixing hole; 14. a pull wire hole; 15. a wire collecting groove; 16. a stay wire alignment module; 17. and pulling a wire.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is described below by way of specific embodiments.
A high-precision alignment manufacturing method for a shell-and-tube heat exchanger comprises the following specific steps:
step S1: arranging the three circular plates vertically and in parallel with each other;
step S2: the four pull wires 17 simultaneously and sequentially pass through the three circular plates, wherein the four pull wires 17 are positioned in the same through hole of the circular plates;
step S3: adjusting the pull wires 17 to be unwound and straightened in the through holes of the circular plates and to be parallel to the direction of the through pipe in the heat exchanger, ensuring that the four pull wires 17 are not contacted with the edges of the through holes of the pipe plates, and finishing the alignment and correction of the three circular plates;
step S4: after the alignment correction is finished, the three circular plates are checked again to ensure that each sub-stay wire 17 is not supported and deformed by the wall of the through hole of the tube plate, and the alignment work is finished at the moment;
step S5: after the alignment work is finished, the pull rod penetrates through the through holes in the circular plates, the diameter of each through hole is different from that of the corresponding pull rod by 0.1mm, then the three circular plates and the pull rod are welded and fixed, and after the welding is finished, the tube plate and the baffle plate 6 are fixed;
step S6: and (5) checking the alignment effect.
In step S6, the specific checking steps of the alignment effect are as follows:
(1) taking the centering module 7 down from the circular plate, randomly selecting a tube plate through hole, and inspecting the alignment effect;
(2) the centering module 7 is taken down from the tube plates at the front end and the rear end, a tube plate through hole is randomly selected, the heat exchange tube is subjected to a tube penetrating process, the heat exchange tube can easily pass through the internal baffle plate 6 at the moment, and can rotate in the tube plate through hole without resistance, and the success of alignment work is proved.
Referring to fig. 1, a alignment manufacturing installation of high accuracy for shell-and-tube heat exchanger, including PMKD 5, three fine setting base 2 of mutual parallel arrangement on PMKD 5, the vertical front end tube sheet that has set gradually on the three fine setting base 2, baffling board 6 and rear end tube sheet, the front end tube sheet, be provided with the through-hole on baffling board 6 and the rear end tube sheet respectively, wear to be equipped with a plurality of act as go-between 17 in the through-hole on the three board simultaneously, the both ends of acting as go-between 17 are connected with respectively and act as go-between alignment module 16, two alignment modules 16 act as go-between set up respectively on front end tube sheet and rear end tube sheet.
The fine tuning base 2 is provided with a fine tuning knob 3 mechanism, the fine tuning knob 3 mechanism is connected with a front end tube plate, or a baffle plate 6, or a rear end tube plate, and the fine tuning base 2 is further provided with a level meter 4.
Wherein the front end tube plate and the rear end tube plate form a tube plate 1.
Referring to fig. 4, the wire drawing alignment module 16 includes two strip-shaped fixed end plates 12 parallel to each other and a positioning strip connected to the two fixed end plates 12, the fixed end plates 12 are provided with fixing holes 13, the positioning strip is provided with wire drawing holes 14, and a space between the two fixed end plates 12 forms a wire collecting groove 15.
Referring to fig. 3, the fixed end plate 12 is connected to the centering module 7 through a bolt, the bolt is disposed in the fixed hole 13, one end of each of the plurality of pulling wires 17 is fixed in the pulling wire hole 14, and the plurality of pulling wires 17 are further connected to the centering module 7.
Referring to fig. 2, a threaded hole 9 is formed in the center of the centering module 7, four wire grooves 8 parallel to the threaded hole 9 are formed in the outer side of the centering module 7, a circumferential groove 10 is further formed in the outer side of the centering module 7, a clamping groove 11 is formed in the bottom surface of one end of the centering module 7, and the clamping groove 11 is connected with a fixed end plate 12 in a clamping manner;
four pull wires 17 are respectively arranged in the wire groove 8 and fixed through elastic belts in the grooves 10.
Referring to fig. 8, a fixed cylinder 6-1 is coaxially arranged outside a through hole of a baffle plate 6, a telescopic cylinder 6-2 is coaxially arranged inside the fixed cylinder 6-1, the inner end of the telescopic cylinder 6-2 is slidably arranged in the fixed cylinder 6-1, a filling cylinder 6-4 and a receiving cylinder 6-3 are vertically arranged at the position of the telescopic cylinder 6-2 close to the outer end, and the filling cylinder 6-4 is communicated with the inner side of the telescopic cylinder 6-2;
one end of the receiving cylinder 6-3 is communicated with the telescopic cylinder 6-2, the other end of the receiving cylinder is sealed, and the filling cylinder 6-4 and the receiving cylinder 6-3 are arranged on the same center line;
the pull wire 17 passes through the fixed cylinder 6-1 and the telescopic cylinder 6-2.
The through hole is provided with a plurality of through holes, and the stay wires 17 penetrating through the same through hole are provided with four through holes.
The stay wire 17 is made of steel wire, is firm and durable, has no burrs, and is easy to use and observe. One set of device comprises four stay wires 17 (the wire is 1mm thick), the length is 20m, and the device is suitable for shell-and-tube heat exchangers of all models, and two ends of each stay wire 17 are fixed in corresponding stay wire holes 14 on the front and rear fixed end plates 12.
The specific working process of the invention is as follows:
(1) installation of the wire alignment module 16: firstly, connecting a centering module 7 and a fixed end plate 12 at one end by using a bolt, fixing one end of four pull wires 17 in a pull wire hole 14 of the end plate, respectively fixing the four pull wires 17 in a wire groove 8 on the axial direction of the centering module 7 and fixing the four pull wires in a groove 10 on the circumferential direction by using an elastic band, and assembling one end of a pull wire alignment module 16;
the other end of the stay wire aligning module 16 is a single fixed end plate 12, the other ends of the stay wires 17 which are not fixed are fixed in the stay wire holes 14 of the end plates in sequence, and three groups of stay wire aligning modules 16 are assembled together, so that the alignment process of the tube plate and the baffle plate 6 can be started;
(2) the stay 17 passes through the through holes of the tube plate and the baffle 6: and (3) preparing a preassembled aligning module, and sequentially inserting the end plate, which is not provided with one end of the centering module 7, into the tube plate through holes of the front tube plate, the rear tube plate and the baffle plate 6 which are fixed on the bottom plate and the fine adjustment base 2. After the stay wires 17 pass through all the tube sheet through holes, the end plate of the other side of the alignment module group, to which the centering module 7 is assembled, is fitted into the tube sheet through hole of the side, see fig. 5;
(3) installing the other side of the stay wire alignment module 16 to center the module 7 and tightening the stay wire 17: when the end plate connecting stay wires 17 pass through all the tube plates and the baffle plates 6, the stay wires 17 are adjusted to be straightened without winding in the through holes of the front tube plate, the rear tube plate and the baffle plates 6, at this time, the centering modules 7 are inserted into the corresponding tube plate through holes by tensioning the stay wires 17, and the positions of the stay wires 17 are preliminarily fixed by centering grooves of four fixed stay wires 17 in the axial direction, which is shown in fig. 6;
(4) rotating the unfixed end plate to take the redundant stay wires 17 into the stay wire groove 8 on the end plate, clamping the end plate with an end plate clamping groove 11 on the centering module 7 after the stay wires 17 are tightened, fixing a threaded hole 9 on the centering module 7 and a connecting hole on the end plate by using a bolt, adjusting a stay wire alignment module 16 at the moment, straightening four stay wires 17 in the tube plate hole and the baffle plate 6 through hole and enabling the four stay wires to be parallel to the tube penetrating direction, selecting three tube plate through holes far away from each other, and performing the same operation, thus finishing the installation of the alignment device, see fig. 7;
(5) adjusting the positions of the tube plate and the baffle plate 6: after the three groups of alignment devices are installed according to the steps, the alignment process of the tube plate and the through hole of the baffle plate 6 is started;
(6) observing the tube plate and the baffle plate 6, adjusting the positions of the tube plate and the baffle plate 6, which penetrate through the tube plate through holes of the stay wires 17, and adjusting and fixing the knob of the fine adjustment base 2 to ensure that the four stay wires 17 in the through holes of the single tube plate or the baffle plate 6 are not contacted with the edges of the through holes of the tube plate, and then the tube plate or the baffle plate 6 is considered to be aligned and corrected;
(7) after the alignment correction of all the tube plates and the baffle plates 6 is finished, the tube plates and each baffle plate 6 are rechecked, and each sub stay wire 17 is ensured not to be supported and deformed by the through hole wall of the tube plates, so that the alignment work is finished;
(8) the tube plate and the baffle plate 6 are fixed: after the alignment work is finished, the pull rod penetrates into the holes of the tube plate and the baffle plate 6, the diameter of the pull rod hole is different from that of the pull rod by 0.1mm, then the tube plate and the baffle plate 6 are welded and fixed with the pull rod, and the pull wire 17 is not contacted with the wall of the baffle plate 6 in the tube plate through hole at any moment in the welding process. After the welding is finished, the tube plate and the baffle plate 6 are fixed;
(9) and (3) checking alignment effect: taking down the centering module 7 from the front end tube plate and the rear end tube plate, randomly selecting a tube plate through hole, and checking the alignment effect: the centering module 7 is taken down from the tube plates at the front end and the rear end, a tube plate through hole is randomly selected, the heat exchange tube is subjected to a tube penetrating process, the heat exchange tube can easily pass through the internal baffle plate 6 at the moment, and can rotate in the tube plate through hole without resistance, and the success of alignment work is proved.
The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.
Claims (9)
1. A high-precision alignment manufacturing method for a shell-and-tube heat exchanger is characterized by comprising the following specific steps:
step S1: arranging the three circular plates vertically and in parallel with each other;
step S2: enabling four pull wires to simultaneously and sequentially penetrate through the three circular plates, wherein the four pull wires are positioned in the same through hole of the circular plates;
step S3: adjusting the stay wires to be not wound and straightened in the through holes of the circular plates and to be parallel to the direction of the through pipe in the heat exchanger, ensuring that the four stay wires are not contacted with the edges of the through holes of the pipe plates, and finishing the alignment and correction of the three circular plates;
step S4: after the alignment correction is finished, the three circular plates are checked again to ensure that each sub-stay wire is not supported and deformed by the wall of the through hole of the tube plate, and the alignment work is finished at the moment;
step S5: after the alignment work is finished, the pull rod penetrates through the through holes in the circular plates, the diameter of each through hole is different from that of the corresponding pull rod by 0.1mm, then the three circular plates and the pull rod are welded and fixed, and after the welding is finished, the tube plate and the baffle plate are fixed;
step S6: and (5) checking the alignment effect.
2. The high-precision alignment manufacturing method for the shell-and-tube heat exchanger according to claim 1, wherein in the step S6, the specific checking steps of the alignment effect are as follows:
(1) taking down the centering module from the circular plate, randomly selecting a tube plate through hole, and inspecting the alignment effect;
(2) the centering module is taken down from the front end tube plate and the rear end tube plate, a tube plate through hole is randomly selected, the heat exchange tube is subjected to a tube penetrating process, the heat exchange tube can easily pass through the internal baffle plate at the moment, resistance-free rotation can be carried out in the tube plate through hole, and the success of alignment work is proved.
3. The high-precision alignment manufacturing device for the shell-and-tube heat exchanger is characterized by comprising a fixed base plate and three fine adjustment bases arranged in parallel on the fixed base plate, wherein the fine adjustment bases are sequentially and vertically provided with a front end tube plate, a baffle plate and a rear end tube plate, the front end tube plate, the baffle plate and the rear end tube plate are respectively provided with a through hole, a plurality of stay wires are simultaneously arranged in the through holes on the three plates in a penetrating manner, two ends of each stay wire are respectively connected with stay wire alignment modules, and the two stay wire alignment modules are respectively arranged on the front end tube plate and the rear end tube plate.
4. A high-precision alignment manufacturing device for a shell and tube heat exchanger according to claim 3, characterized in that a fine adjustment knob mechanism is arranged on the fine adjustment base, the fine adjustment knob mechanism is connected with the front end tube plate, or the baffle plate, or the rear end tube plate, and a level gauge is further arranged on the fine adjustment base.
5. The high precision alignment manufacturing device for the shell and tube heat exchanger according to claim 4, wherein the stay wire alignment module comprises two elongated fixed end plates parallel to each other and a positioning strip connected with the two fixed end plates, the fixed end plates are provided with fixing holes, the positioning strip is provided with stay wire holes, and a space between the two fixed end plates forms a wire collecting groove.
6. The high-precision alignment manufacturing device for the shell-and-tube heat exchanger according to claim 5, wherein the fixed end plate is connected with a centering module through a bolt, the bolt is arranged in the fixed hole, one end of each of the plurality of pulling wires is fixed in the pulling wire hole, and the plurality of pulling wires are further connected with the centering module.
7. The high-precision alignment manufacturing device for the shell-and-tube heat exchanger according to claim 6, wherein a threaded hole is formed in the center of the centering module, four wire grooves parallel to the threaded hole are formed in the outer side of the centering module, a circumferential groove is formed in the outer side of the centering module, a clamping groove is formed in the bottom surface of one end of the centering module, and the clamping groove is connected with the fixed end plate in a clamping manner;
the four pull wires are respectively arranged in the wire grooves and are fixed through the elastic belts in the grooves.
8. A high-precision alignment manufacturing device for a shell-and-tube heat exchanger according to any one of claims 3-7, characterized in that the outside of the through hole of the baffle plate is coaxially provided with a fixed cylinder, the inside of the fixed cylinder is coaxially provided with a telescopic cylinder, the inner end of the telescopic cylinder is slidably arranged in the fixed cylinder, the position of the telescopic cylinder close to the outer end is vertically provided with a filling cylinder and a receiving cylinder, and the filling cylinder is communicated with the inside of the telescopic cylinder;
one end of the bearing cylinder is communicated with the telescopic cylinder, the other end of the bearing cylinder is arranged in a closed manner, and the filling cylinder and the bearing cylinder are arranged on the same center line;
the pull wire penetrates through the fixed cylinder and the telescopic cylinder.
9. The high precision alignment manufacturing device for shell and tube heat exchanger according to claim 7, characterized in that the through holes have several, and the pulling wires passing through the same through hole have four.
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| CN202111382940.8A CN113878529B (en) | 2021-11-22 | 2021-11-22 | High-precision alignment manufacturing method and device for shell-and-tube heat exchanger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114939842A (en) * | 2022-06-19 | 2022-08-26 | 武汉凯比思电力设备有限公司 | Rapid tube core assembling tool and assembling method for tube type heat exchanger |
| CN116045719A (en) * | 2023-01-28 | 2023-05-02 | 扬州通扬化工设备有限公司 | Intermediate assembly structure of heat exchanger and rapid manufacturing method thereof |
| CN117647147A (en) * | 2024-01-29 | 2024-03-05 | 山东豪迈机械制造有限公司 | Automatic arrangement device and arrangement method for heat exchanger baffle plates |
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| CN113146521A (en) * | 2021-05-08 | 2021-07-23 | 山东大学 | Accurate positioning automatic pipe penetrating machine for shell-and-tube heat exchanger and application method thereof |
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| CN114939842A (en) * | 2022-06-19 | 2022-08-26 | 武汉凯比思电力设备有限公司 | Rapid tube core assembling tool and assembling method for tube type heat exchanger |
| CN114939842B (en) * | 2022-06-19 | 2024-01-02 | 武汉凯比思电力设备有限公司 | Tube core rapid assembly tool and assembly method of tube type heat exchanger |
| CN116045719A (en) * | 2023-01-28 | 2023-05-02 | 扬州通扬化工设备有限公司 | Intermediate assembly structure of heat exchanger and rapid manufacturing method thereof |
| CN117647147A (en) * | 2024-01-29 | 2024-03-05 | 山东豪迈机械制造有限公司 | Automatic arrangement device and arrangement method for heat exchanger baffle plates |
| CN117647147B (en) * | 2024-01-29 | 2024-05-17 | 山东豪迈机械制造有限公司 | Automatic arrangement device and arrangement method for heat exchanger baffle plates |
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