CN113739618B - Quick moving device for overhauling tube bundle of vertical heat exchanger - Google Patents
Quick moving device for overhauling tube bundle of vertical heat exchanger Download PDFInfo
- Publication number
- CN113739618B CN113739618B CN202110894409.2A CN202110894409A CN113739618B CN 113739618 B CN113739618 B CN 113739618B CN 202110894409 A CN202110894409 A CN 202110894409A CN 113739618 B CN113739618 B CN 113739618B
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- China
- Prior art keywords
- tube bundle
- heat exchanger
- vertical heat
- section
- rolling
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- 238000005096 rolling process Methods 0.000 claims abstract description 43
- 230000008020 evaporation Effects 0.000 claims abstract description 13
- 238000001704 evaporation Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a quick moving device for overhauling a tube bundle of a vertical heat exchanger, which comprises two moving units, wherein the two moving units are symmetrically arranged on two radial sides of a cylinder body of a middle tube bundle section of the vertical heat exchanger, each moving unit comprises a supporting unit, a rolling unit and a track unit, the supporting unit is connected with the cylinder body, the rolling unit is arranged on the supporting unit, the track unit is arranged on a frame platform at the periphery of the vertical heat exchanger, and the track unit is used for guiding and limiting the rolling of the rolling unit when the tube bundle of the vertical heat exchanger is overhauled, and the middle tube bundle section is quickly moved to an overhaulable space through the rolling unit. The device simple structure, occupation space is little, and convenient to use can reduce personnel intensity of labour, under the circumstances that does not change vertical heat exchanger's structure, can conveniently, realize the maintenance of centering section tube bank section fast to realize simultaneously that the spot of upper segment tube side vapor evaporation section and hypomere tube bank section overhauls fast, and then realize the quick, the high efficiency overhauls of opposite heat exchanger tube bank.
Description
Technical Field
The invention relates to a maintenance moving device, in particular to a quick moving device for maintenance of a vertical heat exchanger tube bundle with a gas phase space at the upper part.
Background
The heat exchanger is common heat exchange equipment of petrochemical enterprises, and the problems of tube side blockage and shell side scaling can occur in the use process, so that the heat exchange efficiency is affected. Therefore, during operation, high-pressure flushing of blocked heat exchange tubes and chemical cleaning of shell side are required to improve heat exchange efficiency of the heat exchanger. The maintenance work of the small horizontal heat exchanger is easier, and the maintenance work of the large vertical heat exchanger is often difficult, and the common large vertical heat exchanger is provided with a vertical single tube side floating head heat exchanger and a vertical four-effect evaporator (the upper part of the vertical single tube side floating head heat exchanger is provided with a gas phase space).
The large vertical heat exchanger generally comprises an upper tube side gas phase evaporation section, a middle tube bundle section and a lower tube bundle section, wherein a cylinder body of the middle tube bundle section is connected with a cylinder body of the upper tube side gas phase evaporation section and a cylinder body of the lower tube bundle section through flanges and bolts respectively. When overhauling, the tube side and the shell side of the middle tube bundle section are required to be washed and chemically cleaned correspondingly. Before maintenance, the bolts between the cylinder of the middle tube bundle section and the cylinder of the upper tube side gas phase evaporation section and the cylinder of the lower tube bundle section are disassembled, and the flange connection of the three is disconnected. In general, the middle tube bundle section is overhauled in an integral hoisting mode, larger hoisting equipment and more manpower are needed, and the possibility of damage caused by collision of flange sealing surfaces, cylinder bodies and the like with peripheral steel structures of the equipment is caused by uncertain factors existing in the overhauling process. In addition, for vertical equipment with larger evaporation space and longer heat exchange tube, larger hoisting space needs to be reserved, so that the equipment structure is not compact, and space waste is serious.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the quick moving device for overhauling the vertical heat exchanger tube bundle, which has the advantages of simple structure, small occupied space, convenient use and convenient realization of quick and efficient overhauling of the vertical heat exchanger tube bundle.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a quick mobile device that vertical heat exchanger tube bank overhauld usefulness, includes two mobile unit, two mobile unit symmetry install in the radial both sides of the barrel of the middle section tube bank section of vertical heat exchanger, every mobile unit include supporting element, rolling element and track unit, supporting element with the barrel link to each other, rolling element install in supporting element, track unit install in the peripheral frame platform of vertical heat exchanger, track unit be used for when vertical heat exchanger tube bank overhauls to rolling element roll direction and spacing, through rolling element with middle section tube bank section quick travel to the overhauling space.
The moving device is directly arranged on the cylinder body of the middle tube bundle section of the vertical heat exchanger, after the bolts between the cylinder body of the middle tube bundle section and the cylinder bodies of the upper tube side vapor evaporation section and the lower tube bundle section are disassembled under the condition of not changing the structure of the vertical heat exchanger, the middle tube bundle section of the vertical heat exchanger can be moved out by matching with a chain block, a steel wire rope and the like, so that the rolling unit is arranged on the track unit, the middle tube bundle section is quickly moved to an overhaulable space through the rolling unit, the overhauling of the middle tube bundle section is conveniently and quickly realized, and after the middle tube bundle section is moved away, the upper tube side vapor evaporation section and the lower tube bundle section of the vertical heat exchanger can be quickly overhauled in situ respectively, and after the complete overhauling of the vertical heat exchanger tube bundle is completed, the middle tube bundle section is quickly reset and installed. The moving device has the advantages of simple structure, small occupied space, convenient use, capability of reducing the labor intensity of personnel and convenient realization of quick and efficient overhaul of the tube bundle of the opposite heat exchanger.
Preferably, the supporting unit comprises a rib plate and a bottom plate, the rib plate is welded on the outer wall of the cylinder body, the bottom plate is welded on the bottom of the rib plate, and the rolling unit is arranged on the bottom plate. The supporting unit is simple in structure and convenient to install.
Preferably, the rolling unit comprises two groups of roller assemblies, each group of roller assemblies comprises a roller, a rolling bearing and a connecting shaft, the connecting shafts are welded on the bottom plate, the inner ring of the rolling bearing is in interference fit with the shaft ends of the connecting shafts, the outer ring of the rolling bearing is in transition fit with the inner holes of the rollers, a sealing felt ring is arranged between the rollers and the connecting shafts, and a bearing cover is fixed on the rollers through bolts.
Preferably, the outer wall of the cylinder is welded with a protective backing plate, the top of the rib plate is welded with a cover plate, and the rib plate and the cover plate are respectively welded on the protective backing plate. The protection backing plate plays a role in protecting the cylinder body, and simultaneously, the prefabrication and the integral installation of the mobile unit are convenient.
Preferably, the bottom of the bottom plate is welded with a supporting base plate, and the connecting shaft is welded on the supporting base plate. The cover plate is combined with the supporting base plate, so that the overall strength of the mobile unit can be further improved.
Preferably, the track unit comprises two sections of parallel square steel tracks, the two sections of parallel square steel tracks are respectively fixed on the frame platform, and the distance between the two sections of parallel square steel tracks is matched with the axial distance between the rollers of the two groups of roller assemblies.
Preferably, the rolling bearing is a deep groove ball bearing.
Compared with the prior art, the invention has the following advantages: the moving device is directly arranged on the cylinder body of the middle tube bundle section of the vertical heat exchanger, under the condition of not changing the structure of the vertical heat exchanger, the middle tube bundle section of the vertical heat exchanger can be moved out by matching with a chain block, a steel wire rope and the like, the rolling unit is arranged on the track unit, the middle tube bundle section is quickly moved to a overhaulable space through the rolling unit, thereby conveniently and quickly overhauling the middle tube bundle section, after the middle tube bundle section is moved away, the upper tube side vapor evaporation section and the lower tube bundle section of the vertical heat exchanger can be quickly overhauled in situ respectively, and after the whole overhauling of the vertical heat exchanger tube bundle is finished, the middle tube bundle section is quickly reset and installed. The moving device has the advantages of simple structure, small occupied space, convenient use, capability of reducing the labor intensity of personnel and convenient realization of quick and efficient overhaul of the tube bundle of the opposite heat exchanger.
Drawings
FIG. 1 is a top view of an effect of a quick-move device after installation in an embodiment;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
fig. 4 is a schematic view of a vertical heat exchanger to which the rapid movement device of the embodiment is applied.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
The embodiment of the quick moving device for overhauling the tube bundle of the vertical heat exchanger, as shown in fig. 1 to 3, comprises two moving units, wherein the two moving units are symmetrically arranged on two radial sides of a cylinder 41 of a middle tube bundle section 4 of the vertical heat exchanger, the vertical heat exchanger specifically applied by the embodiment of the quick moving device is shown in fig. 4, the diameter of an upper tube side gas phase evaporation section 5 of the vertical heat exchanger is phi 3500mm, and the diameters of the middle tube bundle section 4 and a lower tube bundle section 6 are both phi 3500mm; each moving unit comprises a supporting unit 1, a rolling unit 2 and a track unit 3, wherein the supporting unit 1 is connected with the cylinder 41, the rolling unit 2 is installed on the supporting unit 1, the track unit 3 is installed on a frame platform (not shown in the figure) around the vertical heat exchanger, the track unit 3 is used for guiding and limiting the rolling of the rolling unit 2 when the vertical heat exchanger tube bundle is overhauled, and the middle tube bundle section 4 is quickly moved to an overhaulable space through the rolling unit 2.
In this embodiment, the supporting unit 1 includes a rib plate 11 and a bottom plate 12, the outer wall of the cylinder 41 is welded with a protection backing plate 15, the top of the rib plate 11 is welded with a cover plate 13, the bottom plate 12 is welded at the bottom of the rib plate 11, the bottom of the bottom plate 12 is welded with a supporting backing plate 14, and the rib plate 11 and the cover plate 13 are respectively welded on the protection backing plate 15. In this embodiment, the rib plate 11, the bottom plate 12, the cover plate 13, the support pad 14 and the protection pad 15 are made of the same material as the cylinder 41.
In this embodiment, the rolling unit 2 includes two sets of roller assemblies, each set of roller assemblies includes a roller 21, a rolling bearing 22 and a connecting shaft 23, the rolling bearing 22 is a 6315 type deep groove ball bearing, the connecting shaft 23 is welded on the supporting pad 14, an inner ring of the rolling bearing 22 is in interference fit with a shaft end of the connecting shaft 23, an outer ring of the rolling bearing 22 is in transition fit with an inner hole of the roller 21, a sealing felt 24 is installed between the roller 21 and the connecting shaft 23, and a bearing cover 25 is fixed on the roller 21 through bolts.
In this embodiment, the track unit 3 includes two sections of parallel square steel tracks 31, where the two sections of tracks 31 are respectively fixed on the frame platform, and the distance between the two sections of tracks 31 is adapted to the axial distance between the rollers 21 of the two sets of roller assemblies.
When the three-dimensional heat exchanger tube bundle is required to be overhauled, firstly, the bolts between the cylinder 41 of the middle tube bundle section 4 and the cylinder 51 of the upper tube side gas-phase evaporation section 5 and the cylinder 61 of the lower tube bundle section 6 are disassembled, the three are separated, then the middle tube bundle section 4 of the vertical heat exchanger is moved out by matching with a chain block, a steel wire rope (not shown in the figure) and the like, the four rollers 21 are respectively arranged on the track 31, the middle tube bundle section 4 is quickly moved to an overhaulable space through the rolling unit 2, the overhauling of the middle tube bundle section 4 is conveniently and quickly realized, and after the middle tube bundle section 4 is moved away, the in-situ quick overhauling can be simultaneously carried out on the upper tube side gas-phase evaporation section 5 and the lower tube bundle section 6 of the vertical heat exchanger respectively, and after the whole overhauling of the vertical heat exchanger tube bundle is completed, the middle tube bundle section 4 is quickly reset and installed.
Claims (3)
1. The quick moving device for overhauling the tube bundle of the vertical heat exchanger is characterized by comprising two moving units, wherein the two moving units are symmetrically arranged on two radial sides of a cylinder body of a middle tube bundle section of the vertical heat exchanger, each moving unit comprises a supporting unit, a rolling unit and a track unit, the supporting units are connected with the cylinder body, the rolling units are arranged on the supporting units, the track units are arranged on a frame platform on the periphery of the vertical heat exchanger, the track units are used for guiding and limiting rolling of the rolling units during overhauling the tube bundle of the vertical heat exchanger, the middle tube bundle section is quickly moved to an overhauling space through the rolling units, each supporting unit comprises a rib plate and a bottom plate, the rib plate is welded on the outer wall of the cylinder body, the bottom plate is welded on the bottom of the rib plate, each rolling unit is arranged on the bottom plate, each rolling unit comprises two groups of roller assemblies, a rolling bearing and a connecting shaft, the track units are arranged on the rolling bearing and a felt cover plate, the rolling bearing is welded on the bottom of the rolling bearing and the roller plate is connected with the inner ring, the roller is welded on the inner ring is matched with the inner ring of the roller, the roller cover is welded on the bottom plate is welded on the roller cover plate, the roller cover is welded on the roller cover, and the roller cover is welded on the roller cover plate is welded on the inner hole, the connecting shaft is welded on the supporting base plate;
When the tube bundle of the vertical heat exchanger is required to be overhauled, firstly, the bolts between the cylinder of the middle tube bundle section and the cylinder of the upper tube side vapor evaporation section and the cylinder of the lower tube bundle section are disassembled, the three are separated, then the middle tube bundle section of the vertical heat exchanger is moved out by matching with a chain block, a steel wire rope and the like, so that four rollers are respectively arranged on a track, the middle tube bundle section is quickly moved to an overhaulable space through a rolling unit, the overhauling of the middle tube bundle section is conveniently and quickly realized, after the middle tube bundle section is moved away, the upper tube side vapor evaporation section and the lower tube bundle section of the vertical heat exchanger can be quickly overhauled in situ at the same time, and after the complete overhauling of the tube bundle of the vertical heat exchanger, the middle tube bundle section is quickly reset and installed.
2. The quick moving device for overhauling a tube bundle of a vertical heat exchanger according to claim 1, wherein the rail unit comprises two sections of rails made of square steel which are arranged in parallel, the two sections of rails are respectively fixed on the frame platform, and the distance between the two sections of rails is matched with the axial distance between the rollers of the two groups of roller assemblies.
3. The quick travel device for service of a vertical heat exchanger tube bundle of claim 1, wherein the rolling bearing is a deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110894409.2A CN113739618B (en) | 2021-08-05 | 2021-08-05 | Quick moving device for overhauling tube bundle of vertical heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110894409.2A CN113739618B (en) | 2021-08-05 | 2021-08-05 | Quick moving device for overhauling tube bundle of vertical heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113739618A CN113739618A (en) | 2021-12-03 |
| CN113739618B true CN113739618B (en) | 2024-06-18 |
Family
ID=78730132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110894409.2A Active CN113739618B (en) | 2021-08-05 | 2021-08-05 | Quick moving device for overhauling tube bundle of vertical heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113739618B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039055A (en) * | 2010-12-28 | 2011-05-04 | 深圳华强数码电影有限公司 | Three-degree-of-freedom program control wire machinery |
| CN212683038U (en) * | 2020-06-17 | 2021-03-12 | 森松（江苏）重工有限公司 | Heat exchanger tube bundle wears to establish frock |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2887001A1 (en) * | 2013-12-18 | 2015-06-24 | Casale Sa | Tube heat exchange unit for internals of heat exchangers or reactors |
| CN210326719U (en) * | 2019-10-23 | 2020-04-14 | 申俊杰 | Electric power is maintained with overhauing frame |
| CN113048816A (en) * | 2021-04-28 | 2021-06-29 | 北京广厦环能科技股份有限公司 | Vertical evaporator |
-
2021
- 2021-08-05 CN CN202110894409.2A patent/CN113739618B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039055A (en) * | 2010-12-28 | 2011-05-04 | 深圳华强数码电影有限公司 | Three-degree-of-freedom program control wire machinery |
| CN212683038U (en) * | 2020-06-17 | 2021-03-12 | 森松（江苏）重工有限公司 | Heat exchanger tube bundle wears to establish frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113739618A (en) | 2021-12-03 |
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