CN108213887B - Manufacturing and tipping device for heat exchanger tube bundle assembly - Google Patents
Manufacturing and tipping device for heat exchanger tube bundle assembly Download PDFInfo
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- CN108213887B CN108213887B CN201810288844.9A CN201810288844A CN108213887B CN 108213887 B CN108213887 B CN 108213887B CN 201810288844 A CN201810288844 A CN 201810288844A CN 108213887 B CN108213887 B CN 108213887B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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Abstract
The invention provides a device for manufacturing and tipping a tube bundle assembly of a heat exchanger, which comprises a base, a supporting piece and a fixing piece, wherein the supporting piece and the fixing piece are connected with the base. The device has novel structure, strong practicability and universality, realizes the integration of manufacturing of the tube bundle assembly and sleeving of the shell, greatly improves the manufacturing efficiency of the heat exchanger, and reduces the manufacturing difficulty of the heat exchanger.
Description
Technical Field
The invention relates to the field of manufacturing of shell-and-tube heat exchangers, in particular to a device for assisting in manufacturing of tube bundle assemblies and erecting of tube bundles of a shell-and-tube heat exchanger.
Background
Heat exchangers are widely used in the industrial fields of chemical, petroleum, nuclear, and power, with shell-and-tube heat exchangers being most commonly used. The shell-and-tube heat exchanger consists of a tube bundle assembly and a shell. The main part of the heat exchanger is a tube bundle assembly, and the common tube bundle assembly consists of a tube plate, a baffle plate, a heat exchange tube, a pull rod and other parts.
The manufacturing flow of the shell-and-tube heat exchanger is as follows: 1. placing tube plates on a tube bundle assembly supporting platform, placing baffle plates by taking the tube plates as references, adjusting the height and the interval of the baffle plates to ensure that all the baffle plates are coaxial with tube plate holes, enabling heat exchange tubes to penetrate all the baffle plates and the tube plates, and connecting the baffle plates and the tube plates into a frame by using pull rods; 2. the heat exchange tubes are sequentially penetrated from one side of the baffle plates, pass through all the baffle plates and penetrate out from the other side of the tube plate. The height of the bottom support of the baffle plate is required to be continuously adjusted in the pipe penetrating process so as to prevent the heat exchange pipe from being blocked or scratching the outer wall in the pipe penetrating process; 3. and after all the heat exchange tubes penetrate into the tube plate, adjusting the length of the heat exchange tubes extending out of the tube plate, welding the heat exchange tubes and the tube plate, performing nondestructive inspection of welding seams after welding, and performing expansion connection of the heat exchange tubes and the tube plate, so as to finish manufacturing of the tube bundle assembly.
After the tube bundle assembly is manufactured, the horizontal sleeving of the heat exchanger shell is carried out, but when the tube bundle assembly is longer and has larger weight, the horizontal sleeving shell has the following difficulties and disadvantages: 1. the tube bundle assembly can generate larger friction force with the shell in the sleeving process, and the shell is difficult to introduce; 2. the baffle plate and the inner wall of the shell are designed to have smaller gaps, so that the shell is difficult to adjust in the process of introducing; 3. the horizontal type sleeve has high requirements on flatness and cylindricity of the inner surface of the heat exchanger shell, the shell is formed by splicing a plurality of sections of cylinders, and the butt joint part of the cylinders is provided with a staggered edge, so that the requirements of the horizontal type sleeve are difficult to meet although the manufacturing standard can be met; 4. the tube bundle assembly shell can be pressed on the inner wall of the shell by self weight, and the risk that the baffle plate deforms and scratches the inner wall of the shell and even is blocked with the shell exists.
If the tube bundle assembly vertical sleeve shell is adopted, adverse effects caused by dead weight of the tube bundle assembly can be avoided, gaps between the shell and the tube bundle assembly can be flexibly adjusted, the difficulty is avoided, but the tube bundle assembly has certain flexibility, and the erection difficulty is very high. If the tube bundle is directly lifted, the bending deformation of the tube bundle can damage the heat exchange tube, and the welding seam can be adversely affected.
For the above reasons, the present inventors have conducted intensive studies on the manufacture of heat exchanger tube bundles and the sleeving of the shell, so as to design a heat exchanger tube bundle assembly manufacturing and vertical sleeving shell integrated device which is convenient to use and has strong practicability.
Disclosure of Invention
In order to overcome the problems, the inventor has conducted intensive researches and designs a heat exchanger tube bundle assembly manufacturing and tipping device with novel structure and strong practicability, which can finish the manufacturing of the whole tube bundle assembly and the tipping of the device and the tube bundle assembly by 90 degrees, thereby achieving the purpose of erecting the tube bundle assembly and smoothly finishing the vertical sleeving of the tube bundle assembly and a shell. The device has novel structure and strong practicability and universality, realizes the integration of manufacturing of the tube bundle assembly and sleeving of the shell, greatly improves the manufacturing efficiency of the heat exchanger, and reduces the manufacturing difficulty of the heat exchanger, thereby completing the invention.
The invention aims to provide that:
in one aspect, the present invention provides a heat exchanger tube bundle assembly manufacturing and tipping device that includes a base and a support and a fixture coupled to the base.
Another aspect of the present invention is to provide a method of manufacturing a heat exchanger tube bundle assembly and a encasement shell using the apparatus described above.
The invention has the beneficial effects that:
1. the device for manufacturing and tipping the tube bundle assembly of the heat exchanger can realize the vertical sleeving of the tube bundle assembly into the shell, avoid the difficult sleeving of the shell caused by the dead weight of the tube bundle assembly in the horizontal sleeving, damage to the tube bundle assembly and the shell, and flexibly adjust the gap between the shell and the tube bundle assembly.
2. The invention realizes the integrated operation of the tube bundle assembly and the sleeve shell, reduces the manufacturing difficulty of the heat exchanger and improves the manufacturing efficiency of the heat exchanger.
3. The device provided by the invention has the advantages of novel structure, convenience in use and strong practicability, and can be applied to industrial production to improve the production efficiency.
Drawings
FIG. 1 shows a schematic view of a heat exchanger tube bundle assembly manufacturing and tipping device;
FIG. 2 illustrates a three-dimensional schematic view of a heat exchanger tube bundle assembly manufacturing and tipping device;
FIG. 3 shows a schematic view of an L-shaped tipping base;
FIG. 4 shows a three-dimensional schematic of an L-shaped tipping base;
FIG. 5 shows a schematic view of a heat exchanger tube bundle assembly;
FIG. 6 shows a schematic view of a slideway structure;
FIG. 7 shows a schematic view of the structure of the adjustment support assembly;
FIG. 8 shows a schematic view of an adjustment support assembly and slideway mounting structure;
FIG. 9 shows a schematic view of a lead screw configuration;
FIG. 10 shows a schematic view of a support beam assembly;
FIG. 11 shows a schematic view of the construction of the positioning nut;
FIG. 12 shows a schematic view of the device in a 90 ° tipped vertical encasement housing
Reference numerals illustrate:
1-1-L shape tipping base
1-1-roll-over support plate
1-2-L-shaped steel pipe
1-3-screw
1-4-rib plate
1-5-tube sheet support
1-6-slideway
1-6-1-connecting stud nut
1-6-2-connecting block
1-6-3-concave plate
1-7-intermediate support plate group
1-8-suspender connecting rod
1-9-lifting support plate group
1-10-tipping lifting lug
1-11-slideway connecting bolt and nut
2-adjusting support assembly
2-1-plug
2-2-lead screw
2-3-slider
2-4-locking pressure plate
2-5-locking screw
2-6-handle
3-support beam set
4-connecting plate
5-positioning nut
6-sling
7-heat exchanger tube bundle assembly
7-1-tube sheet
7-2-baffle
7-3-heat exchange tube
7-4-pull rod
8-heat exchanger shell
9-reference platform
Spacing between H-support beam group and tube plate of tube bundle assembly
L-support beam group is between two hole spacing
SR-screw top ball
Detailed Description
The invention is described in further detail below with reference to the drawings and the preferred embodiments. The features and advantages of the present invention will become more apparent from the description.
In a first aspect of the present invention, as shown in fig. 1, a method of manufacturing a heat exchanger tube bundle assembly and a tipping device for completing the manufacture of the heat exchanger tube bundle assembly and the erection of a heat exchanger shell is provided, the device comprising a base, and a support and a fixture connected to the base.
According to a preferred embodiment of the invention, the method and tipping device for manufacturing the heat exchanger tube bundle assembly 7 are used for manufacturing the heat exchanger tube bundle assembly 7 with the diameter ranging from 600 mm to 2000mm, wherein the heat exchanger tube bundle assembly 7 comprises a tube plate 7-1, a baffle plate 7-2, heat exchange tubes 7-3 and pull rods 7-4.
According to the preferred embodiment of the invention, the base is an L-shaped tipping base 1, the supporting piece comprises an adjusting supporting component 2 and a supporting beam group 3, the adjusting supporting component is connected with the long end of the L-shaped tipping base 1, the supporting beam group 3 is fixedly connected with the short end of the L-shaped tipping base 1, the fixing piece comprises a hanging strip 6, and two ends of the hanging strip 6 are connected with the L-shaped tipping base 1.
According to a preferred embodiment of the invention, the L-shaped tilting mount 1 is structurally symmetrical.
According to the preferred embodiment of the invention, the L-shaped tipping base 1 is a member capable of tipping at 90 degrees, two L-shaped steel pipes 1-2 bent at 90 degrees are arranged at the bottom and used as tipping supports, rib plates 1-4 are arranged at the bent parts, two rows of slide ways 1-6 are arranged at the upper part of the base, and the L-shaped tipping base 1 is fixedly connected with the slide ways 1-6 through a supporting plate.
According to the invention, the supporting plates are divided into a lifting supporting plate group 1-9 and an intermediate supporting plate group 1-7, the lifting supporting plate group 1-9 is arranged at the long end part and the bending part of the L-shaped steel pipe 1-2, and is provided with lifting lugs, so that the device can be lifted horizontally through a crown block; three middle supporting plate groups 1-7 are arranged between the lifting supporting plate groups and are used for connecting and supporting the slide ways 1-6 and the L-shaped tipping base 1.
According to a preferred embodiment of the present invention, the L-shaped steel pipe 1-2 is bent by 90 DEG and then divided into a long end and a short end, and the bending radius R ranges from 200 to 500mm. The long end of the L-shaped steel pipe 1-2 is contacted with the reference platform 9 when the L-shaped tipping base 1 is horizontally placed, and the short end is contacted with the reference platform 9 when the L-shaped tipping base is tipped by 90 degrees;
the end parts of the long ends of the L-shaped steel pipes 1-2 are provided with tipping lifting lugs 1-10, the short ends of the two L-shaped steel pipes 1-2 are provided with screws 1-3, preferably, the screws 1-3 are distributed equidistantly, the number of the screws on the two short ends is the same, the positions of the screws are corresponding, more preferably, the screws 1-3 are 8, the diameter of the screws is 50-80 mm, and equidistant 4 groups of screws are arranged on the two short ends of the L-shaped steel pipes;
according to the preferred embodiment of the invention, the short end of the L-shaped tipping base 1 is fixedly connected with the tipping support plate 1-1, and after tipping, the tipping support plate 1-1 is attached to the reference platform 9, so that the stability of the base and the platform after tipping can be improved.
According to the preferred embodiment of the invention, the long ends of the two L-shaped steel pipes 1-2 are arranged at the bottom of the base in parallel, the included angle of the short ends is set to 40-80 degrees, preferably 60 degrees, and the angle can meet the requirements that the welding, flaw detection and expansion operation areas of the heat exchanger tube plate 7-1 and the heat exchange tube 7-3 in the range of the invention are not blocked by the L-shaped steel pipes 1-2, and the stability of the short end support after tipping is improved.
According to a preferred embodiment of the present invention, the L-shaped steel pipe 1-2 has a pipe gauge of 200 to 300mm in diameter and 30 to 50mm in thickness.
According to the preferred embodiment of the invention, the slide ways 1-6 are formed by fixedly connecting two concave plates 1-6-3 through the connecting blocks 1-6-2 and the connecting stud nuts 1-6-1, the slide ways 1-6 are two groups, and the slide ways are fixedly connected with the middle supporting plate 1-7 and the lifting supporting plate 1-9 of the base through the connecting blocks 1-6-2 and the slide way connecting stud nuts 1-11.
According to a preferred embodiment of the invention, the symmetry axes of the two concave plates 1-6-3 of the two sets of slides 1-6 form an angle of 20-40, preferably 30, on the cross section of the slide 1-6, which angle is sufficient to adjust the support of the support assembly 2 to the heat exchanger baffle 7-2 within the scope of the invention.
According to the preferred embodiment of the invention, the adjusting and supporting component 2 is an assembly body which can slide in the L-shaped tipping base slideway 1-6 and can adjust the height, and consists of a screw rod 2-2, a sliding block 2-3, a top head 2-1, a locking pressing plate 2-4, a locking screw 2-5 and a handle 2-6. The sliding block 2-3 can slide in the sliding way 1-6, a threaded through hole matched with the lead screw 2-2 and two threaded holes connected with the locking pressing plate 2-4 are formed in the middle of the sliding block, the lead screw 2-2 and the sliding block 2-3 are in threaded fit and rotate to adjust the extension length, the locking pressing plate 2-4 is connected with the sliding block 2-3 through the locking screw 2-5, and the adjusting support component 2 is fixed in the sliding way 1-6 through the pre-tightening locking screw 2-5; the end part of the screw rod 2-2 is provided with a plug 2-1, and the bottom is provided with a handle 2-6.
In the invention, a plurality of groups of adjusting and supporting components 2 and L-shaped tipping base slide ways 1-6 are assembled to form a tube bundle component manufacturing platform of the heat exchanger, and tube plate supports 1-5 and adjusting and supporting components 2 can horizontally support tube plates 7-1 and baffle plates 7-2 of the tube bundle component to manufacture the tube bundle component 7.
According to the preferred embodiment of the invention, the lead screw 2-2 is a threaded rod with one end provided with a supporting head and the other end provided with a connecting hole of the handle 2-6, and the supporting head is provided with a spherical surface SR;
according to the preferred embodiment of the invention, the plug 2-1 is provided with a groove for supporting the baffle plate 7-2, the width of the groove is set to 20mm, the plug 2-1 is connected with a spherical supporting head of the screw rod 2-2, and the plug can properly swing along with the spherical surface of the supporting head so as to adapt to the baffle plates with different specifications. When the screw rod 2-2 is rotated to the baffle 7-2 plate to enter the groove of the plug 2-1, the plug 2-1 cannot rotate along with the rotation of the screw rod 2-2;
according to the preferred embodiment of the invention, the locking pressing plate 2-4 is connected with the sliding block 2-3 through the locking screw 2-5, when the adjusting support component 2 supports the baffle plate 7-2 of the tube bundle component and the height is adjusted, the locking block screw 2-5 is pre-tightened to enable the locking pressing plate 2-4 and the sliding block 2-3 to clamp the sliding way 1-6, so that the adjusting support component 2 is fixedly connected with the sliding way 1-6, and the adjusting support component 2 can be prevented from moving in the sliding way 1-6 under the dead weight after the device is tipped;
according to the preferred embodiment of the invention, the supporting beam group 3 is four rectangular fixing pieces with different lengths and the thickness is 100-200 mm, each supporting beam is provided with a groove matched with the screw rod 1-3 of the L-shaped tipping base, the front end of the groove is provided with a counter bore, and the supporting beam group can be fixedly connected with the screw rod 1-3 at the short end of the L-shaped steel pipe 1-2 through a positioning nut 5. During installation, the distance L between the two grooves of each supporting beam corresponds to each group of screw rods 8 of the L-shaped tipping base 1 one by one, and the supporting beams are installed one by one from short to long.
According to the preferred embodiment of the invention, the connecting plate 4 is a rectangular thick steel plate with the thickness of 30-100 mm and the material is the same as that of the tube plate 7-1.
When the tube bundle assembly 7 is manufactured on the L-shaped tipping base 1 and is horizontally placed, the support beam group 3 is gradually arranged on the base from short to long and is fixed by the positioning nut 5, a certain gap H is arranged between the support beam group 3 and the tube plate 7-1, and the tube plate 7-1 and the support beam group 3 are welded and fixed by the plurality of connecting plates 4.
In the present invention, the clearance H between the support beam group 3 and the tube sheet 7-1 is effective in the following aspects: firstly, providing an installation gap of the support beam group 3; secondly, because the tube plate 7-1 is a machined part, grooves are machined at two ends, and the tube plate 7-1 cannot be in direct contact with the support beam group 3 in order to ensure that the grooves are not knocked. And meanwhile, one end of the connecting plate 4 is welded with the surface of the supporting beam group 3, and the other end of the connecting plate is welded with the outer wall of the tube plate 7-1, so that the connecting plate is fixedly connected with the device under the condition of not damaging the groove of the tube plate 7-1.
In the invention, the hanging strip 6 is a common lifting hanging strip, the bearing range is 10-20 tons, a plurality of hanging strips are selected according to the number of the baffle plates 7-2 to fixedly connect the tube bundle assembly 7 with the L-shaped tipping base 1 in the circumferential direction, the hanging strip 6 is bound with the hanging strip connecting rod 1-8 at the position encircling the baffle plates 7-2 and cannot contact with the heat exchange tube 7-3, and the heat exchange tube 7-3 is prevented from being crushed after the hanging strip 6 is stressed.
In the invention, when the tube bundle assembly 7 is manufactured and fixed in the device, the tipping lifting lug 1-10 is slowly lifted, the whole body is tipped by 90 degrees along with the bending position of the L-shaped steel tube 1-2, the tipping supporting plate 1-1 at the short end of the L-shaped steel tube 1-2 is attached to the reference platform 9, and the device is stably erected on the reference platform after the device and the tube bundle assembly are tipped along with the offset of the whole body gravity center. The heat exchanger shell 8 is vertically lifted and slowly sleeved into the tube bundle assembly 7, the screw rod 2-2 of the supporting assembly is gradually retracted, the hanging strip 6 is detached, and the tube bundle assembly 7 and the shell 8 are vertically sleeved. The invention is used for the manufacture of heat exchanger tube bundle assemblies 7 having diameters in the range 600-2000 mm.
The method for manufacturing the heat exchanger tube bundle assembly and the vertical sleeve shell by adopting the device provided by the invention comprises the following steps:
step one, installing an adjusting support assembly 2 in an L-shaped tipping base slideway 1-6, selecting the number of the adjusting support assemblies 2 according to the number of baffle plates 7-2 of a heat exchanger tube bundle assembly, and fixedly connecting the slideway 1-6 with the L-shaped tipping base 1 through a slideway connecting bolt nut 1-11;
step two, the heat exchanger tube plate 7-1 is placed on the tube plate support 1-5, the distance between the adjusting support assemblies 2 is determined based on the tube plate 7-1, the baffle plates 7-2 are installed, the screw rods 2-2 are rotated to adjust the height of the baffle plates 7-2 to a proper position, and the adjusting support assemblies 2 are fixed with the slide ways 1-6 by adjusting the locking screws 2-5. The tube plate is fixedly connected with the baffle plate by the mounting pull rod 7-4, penetrates into the heat exchange tube 7-3, and performs welding, flaw detection and expansion connection of the tube plate 7-1 and the heat exchange tube 7-3 to finish the manufacture of the tube bundle assembly 7;
and thirdly, installing the support beam group 3, fixedly connecting the support beam group 3 with the L-shaped tipping base 1 by using a positioning nut 5, and fixedly welding the support beam group 3 with the heat exchanger tube plate 7-1 by using a plurality of connecting plates 4, wherein in order to prevent the tube plate 7-1 from damaging a butt joint groove of the tube plate 7-1 and the shell 8 in the tipping process, one end of each connecting plate 4 is welded with the outer wall of the tube plate 7-1, and the other end is welded with a support surface of the support beam, so that the tube bundle assembly 7 is axially fixed. The tube bundle assembly is bound and fixed with the L-shaped tipping base 1 by using a hanging strip 6, the hanging strip 6 surrounds the baffle 7-2 and is bound with the hanging strip connecting rod 1-8, and the radial fixation of the tube bundle assembly 7 and the L-shaped tipping base 1 is completed;
step four, slowly lifting the short ends of the tilting lifting lugs 1-10 of the L-shaped tilting base 1 to the L-shaped steel pipes 1-2 and the tilting supporting plate 1-1 to be in contact with the reference platform 9, and stably erecting the device and the tube bundle assembly on the reference platform after the device and the tube bundle assembly tilt along with the deviation of the whole center, wherein the tube bundle assembly 7 is vertically placed;
step five, erecting the sleeved heat exchanger shell 8, slowly sleeving the shell 8 downwards into the tube bundle assembly 7 during sleeving, gradually rotating the handles 2-6 to retract the screw rods 2-2, and gradually removing the hanging strips 6. After the shell 8 is completely sleeved into the tube bundle assembly, the tube plate 7-1 is in butt joint with the shell 8;
step six, rotating the screw rod 2-2 to the outer wall of the supporting shell 8 of the plug 2-1 again, slowly lifting the tipping lifting lug 1-10 and the L-shaped tipping base lifting supporting plate group 1-9 to the L-shaped tipping base 1 for horizontal placement. And removing the connecting plate 4 between the tube plate 7-1 and the support beam group 3, lifting the tube bundle assembly 7 sleeved with the shell 8 out of the base, and completing the manufacture of the tube bundle assembly 7 and the sleeving of the shell 8.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the azimuth or positional relationship in the operation state of the present invention, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
The invention has been described in detail with reference to preferred embodiments and illustrative examples. It should be noted, however, that these embodiments are merely illustrative of the present invention and do not limit the scope of the present invention in any way. Various improvements, equivalent substitutions or modifications can be made to the technical content of the present invention and its embodiments without departing from the spirit and scope of the present invention, which all fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A heat exchanger tube bundle assembly manufacturing and tipping device, characterized in that the device comprises a base, a support and a fixing piece connected with the base;
the base is an L-shaped tipping base (1), the L-shaped tipping base (1) is a member capable of tipping by 90 degrees,
the L-shaped tipping base (1) comprises two L-shaped steel pipes (1-2) bent at 90 degrees, the L-shaped steel pipes (1-2) are divided into long ends and short ends, when the L-shaped steel pipes are horizontally placed, the long ends of the L-shaped steel pipes (1-2) are contacted with the reference platform (9), and the short ends of the L-shaped steel pipes are contacted with the reference platform (9) after tipping for 90 degrees;
the long ends of the two L-shaped steel pipes (1-2) are arranged at the bottom of the base in parallel, the included angle of the short ends is 40-80 degrees,
the short end of the L-shaped steel pipe (1-2) is fixedly connected with a screw (1-3), and the end part of the short end is provided with a tipping supporting plate (1-1);
the support comprises an adjusting support component (2) and a support beam group (3),
the adjusting support component (2) is connected with the long end of the L-shaped tipping base (1),
the support beam group (3) is fixedly connected with the short end of the L-shaped tipping base (1),
the fixing piece comprises a hanging strip (6), and two ends of the hanging strip (6) are connected with the L-shaped tipping base (1);
the support beam of the support beam group (3) is provided with a groove matched with the screw (1-3), the front end of the groove is provided with a counter bore, and the positioning nut (5) is matched with the screw (1-3) to realize the fixation of the support beam group (3) and the L-shaped tipping base (1);
two rows of slide ways (1-6) are arranged on the L-shaped tipping base (1),
the slide way (1-6) is fixedly connected with the long end of the L-shaped steel pipe (1-2) through the middle supporting plate group (1-7) and the lifting supporting plate group (1-9), and the adjusting supporting component (2) can slide in the slide way (1-6);
the adjusting and supporting component (2) consists of a screw rod (2-2), a sliding block (2-3), a top head (2-1), a locking pressing plate (2-4), a locking screw (2-5) and a handle (2-6),
the sliding block (2-3) can slide in the slideway (1-6),
the sliding block (2-3) is provided with a threaded through hole matched with the screw rod (2-2) and two threaded holes connected with the locking pressing plate (2-4),
the lead screw (2-2) and the sliding block (2-3) are in threaded fit and rotate to adjust the extension length,
the locking pressing plate (2-4) is connected with the sliding block (2-3) through a locking screw (2-5),
the adjusting support assembly (2) is arranged in the slide way (1-6) and is fixed in the slide way (1-6) through a pre-tightening locking screw (2-5);
the end part of the screw rod (2-2) is provided with a plug (2-1), and the bottom is provided with a handle (2-6).
2. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the end part of the long end of the L-shaped steel pipe (1-2) is provided with a tipping lifting lug (1-10),
the bending part of the L-shaped steel pipe (1-2) is provided with a rib plate (1-4).
3. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the included angle of the short ends is 60 degrees.
4. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the slideway (1-6) is formed by fixedly connecting two long concave plates (1-6-3) through a connecting block (1-6-2) and a connecting stud nut (1-6-1),
the included angle formed by the symmetrical axes of the two concave plates (1-6-3) in the two groups of slide ways (1-6) on the cross section of the slide ways (1-6) is 20-40 degrees.
5. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the included angle formed by the symmetrical axes of the two concave plates (1-6-3) in the two groups of slide ways (1-6) on the cross section of the slide ways (1-6) is 30 degrees.
6. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the supporting beams of the supporting beam group (3) are cuboid fixing pieces, the number of the supporting beams corresponds to the number of the screw rods on the short end of each L-shaped steel pipe (1-2) one by one, the distance (L) between two grooves of each supporting beam corresponds to the interval of each group of screw rods (1-3) of the L-shaped tipping base (1),
lifting lugs are arranged on the supporting beam group (3).
7. The device according to any one of claims 1 to 6, wherein,
the L-shaped tipping base (1) also comprises a connecting plate (4), a tube plate support (1-5) and a sling connecting rod (1-8),
the connecting plate (4) fixedly connects the supporting beam group (3) with the tube plate (7-1), the tube plate support (1-5) is used for placing the tube plate (7-1),
the hanging strip (6) is connected with the hanging strip connecting rod (1-8) of the L-shaped tipping base around the baffle plate (7-2).
8. A method of making a heat exchanger tube bundle assembly and tipping using the apparatus of claim 7, comprising the steps of:
step one, an adjusting support assembly (2) is arranged in an L-shaped tipping base slideway (1-6), and the slideway (1-6) is fixedly connected with the L-shaped tipping base (1) through a slideway connecting bolt and nut (1-11);
step two, placing a heat exchanger tube plate (7-1) on a tube plate support (1-5), determining the distance between adjusting support components (2) by taking the tube plate (7-1) as a reference, installing a baffle plate (7-2), rotating a screw rod (2-2) to adjust the height of the baffle plate (7-2) to a proper position, fixing the adjusting support components (2) with a slideway (1-6) by adjusting a locking screw (2-5), fixedly connecting the tube plate with the baffle plate by installing a pull rod (7-4), penetrating into a heat exchange tube (7-3), and welding, detecting and expanding the tube plate (7-1) with the heat exchange tube (7-3), thereby completing the manufacture of the tube bundle component (7);
step three, installing a support beam group (3), fixedly connecting the support beam group (3) with the L-shaped tipping base (1) by using a positioning nut (5), fixedly connecting the support beam group (3) with a heat exchanger tube plate (7-1) by using a connecting plate (4), and binding a sling (6) around a baffle plate (7-2) and a sling connecting rod (1-8) of the L-shaped tipping base (1) to finish radial fixation of a tube bundle assembly (7) and the L-shaped tipping base (1);
step four, lifting the tipping lifting lug (1-10) to the L-shaped steel pipe (1-2) and the tipping supporting plate (1-1) to be contacted with the reference platform (9), and standing the tube bundle assembly (7);
step five, erecting a shell (8) of the sleeved heat exchanger, sleeving the shell (8) downwards into the tube bundle assembly (7) during sleeving, gradually rotating a handle (2-6) to retract a screw rod (2-2), gradually dismantling a sling (6), and after the shell (8) is completely sleeved into the tube bundle assembly, butting the tube plate (7-1) with the shell (8);
step six, rotating the screw rod (2-2) to the outer wall of the supporting shell (8) of the top head (2-1) again, lifting the tipping lifting lug (1-10) and the L-shaped tipping base lifting supporting plate group (1-9) to the L-shaped tipping base (1) for horizontal placement, removing the tube plate (7-1) and the connecting plate (4), lifting the tube bundle assembly (7) sleeved with the shell (8) out of the base, and completing the manufacture of the tube bundle assembly (7) and the sleeving of the shell (8).
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| CN108213887B true CN108213887B (en) | 2023-12-26 |
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