CN208928902U - Mechanism is straightened in a kind of heat exchanger tube - Google Patents
Mechanism is straightened in a kind of heat exchanger tube Download PDFInfo
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- CN208928902U CN208928902U CN201821648547.2U CN201821648547U CN208928902U CN 208928902 U CN208928902 U CN 208928902U CN 201821648547 U CN201821648547 U CN 201821648547U CN 208928902 U CN208928902 U CN 208928902U
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- taper
- heat exchanger
- exchanger tube
- straightened
- taper expansion
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Abstract
The utility model belongs to chemical machinery equipment technology field, it is related to a kind of heat exchanger tube and mechanism is straightened, it is characterized in that it includes three-legged support, tapered expansion rod is run through at the center of three-legged support, the end of taper expansion rod is in the gradually smaller taper of outer diameter and can protrude into heat exchanger tube, the taper expansion sleeve of pluggable heat exchanger tube is cased in the middle part of taper expansion rod, there is the taper matched with taper expansion rod end taper in taper expansion sleeve front end；Taper expansion rod is equipped with external screw thread, and the outside of taper expansion sleeve is equipped with swelling nut, and the taper expansion rod for stretching out three-legged support, which is equipped with, is straightened nut and homalocephalus.Mechanism is straightened in the heat exchanger tube of the utility model, and structure is simple, easy to operate, securely and reliably.The processing technology requirement that can satisfy the ultra-fine long heat exchanger tube of heat exchanger completely, substantially increases production efficiency.
Description
Technical field
The utility model belongs to chemical machinery equipment technology field, and in particular to one kind is for ultra-fine long heat exchanger tube in poling
Occur bending deformation in the process is straightened mechanism.
Background technique
Currently, many heat exchange heat exchangers are provided with the heat exchanger tube of thousands of ultra-fine length, in the fabrication process, according to technique
It is required that tube length need to all be worked into size, nozzle exposes 3 ~ 5mm of tube sheet after poling.During poling, due to managed
Son self weight and external force influence cause bending deformation, cause nozzle to be difficult to expose tube sheet, are unable to satisfy drawing technical requirements, Wu Fajin
Row next step welding sequence.
Utility model content
The purpose of this utility model be in view of the above-mentioned problems, and propose it is a kind of for ultra-fine long heat exchanger tube after poling
Mechanism is straightened.
The utility model is achieved like this: mechanism is straightened in heat exchanger tube, it is characterized in that it includes three-legged support, three foot branch
Tapered expansion rod is run through at the center of frame, and the end of taper expansion rod in the gradually smaller taper of outer diameter and can protrude into heat exchanger tube
In, the taper expansion sleeve of pluggable heat exchanger tube is cased in the middle part of taper expansion rod, taper expansion sleeve front end, which has, expands rod end with taper
The taper that nose cone degree matches；Taper expansion rod is equipped with external screw thread, and the outside of taper expansion sleeve is equipped with swelling nut, stretches out three
The taper expansion rod of foot support is equipped with and nut and homalocephalus is straightened.
Mechanism is straightened in the utility model, opposite with the fixed work of heat exchange pipe orifice using tube sheet as bearing using three-legged support
It is mobile, straighten curved heat exchanger tube.By rotating swelling nut, taper expansion sleeve is pushed, pulls taper expansion rod to make opposite
It is mobile, it expands outwardly taper expansion sleeve under force and is bonded swelling with heat exchange pipe internal surface, reach fixed purpose, rotate
Nut is straightened, it is fulcrum that three-legged support and tube sheet, which are passed a bridge, pulls taper expansion rod to be displaced outwardly together with heat exchanger tube, heat exchanger tube is drawn
Outside forthright tube sheet planar out, guarantee that tube head can expose 3 ~ 5mm of tube sheet.
Mechanism is straightened in the heat exchanger tube of the utility model, and structure is simple, easy to operate, securely and reliably.It can satisfy heat completely
The processing technology requirement of the ultra-fine long heat exchanger tube of exchanger, substantially increases production efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
In figure: 1. tube sheets, 2. taper expansion rods, 3. heat exchanger tubes, 4. spot welding fixed points, 5. taper expansion sleeves, 6. swelling spiral shells
Nut, 9. homalocephalus is straightened in mother, 7. three-legged supports, 8..
Specific embodiment
The utility model structure is described in detail with reference to the accompanying drawings and examples.
Embodiment: the present embodiment is by taking the heat exchanger tube of certain type heat exchanger is straightened as an example, including the thin and long φ of more than 7000 roots
12X1.5X14500mm heat exchanger tube.Heat exchanger tube present position is shunk in tubesheet holes, need to be straightened and be stretched out outside tube sheet planar, with
Meet lower step procedure technology requirement.
Mechanism is straightened referring to attached drawing 1 in heat exchanger tube, mainly includes three-legged support 7, the center of three-legged support 7 is through tapered swollen
The end of expanding rod 2, taper expansion rod 2 can and be protruded into heat exchanger tube 3 in the gradually smaller taper of outer diameter, 2 middle part of taper expansion rod
It is cased with the taper expansion sleeve 5 of pluggable heat exchanger tube 3,5 front end of taper expansion sleeve has to be matched with 2 end taper of taper expansion rod
Taper；Taper expansion rod 2 is equipped with external screw thread, and the outside of taper expansion sleeve 5 is equipped with swelling nut 6, stretches out the cone of three-legged support 7
Degree expansion rod 2, which is equipped with, is straightened nut 8 and homalocephalus 9.
Embodiment is such to running: first unclamping the swelling nut 6 that mechanism is straightened in heat exchanger tube, makes taper expansion rod
2 taper positions and 5 taper position of taper expansion sleeve are unclamped, and so that taper expansion sleeve 5 is retracted to minimum zone, are loaded onto three-legged support 7
It screws on and nut 8 is straightened, external screw thread exposes, and then injects in heat exchanger tube 3 taper expansion sleeve 5, it is swollen to block taper with spanner
Expanding rod homalocephalus 9 is wrenched swelling nut 6 by any open spaces of three-legged support 7, makes taper expansion sleeve 5 and taper expansion rod 2
Under force, make the external diameter expansion and 3 inner wall swelling of heat exchanger tube at the taper position of taper expansion sleeve 5.Again three-legged support 7
Three feet be placed on pipe bridge, be wrenched with spanner and nut 8 be straightened, at this moment heat exchanger tube 3 is mobile straight to outside tube sheet under external force
Expose 3 ~ 5mm of tube sheet to nozzle, then is terminated with spot welding fixed point 4.Otherwise it unclamps and nut 8 and swelling nut 6 is straightened, keep taper swollen
Expansion set 5 restores to the original state, and extraction, which is straightened mechanism taper expansion sleeve 5 is inserted into another heat exchanger tube again, successively to be carried out.
The present embodiment: it is easy to operate that heat exchanger tube is straightened mechanism, can solve completely curved in ultra-fine long heat exchanger tube assembling process
The problem of song deformation, meet process specifications.
Claims (1)
1. mechanism is straightened in a kind of heat exchanger tube, it is characterized in that it includes three-legged support, tapered expansion is run through at the center of three-legged support
The end of bar, taper expansion rod in the gradually smaller taper of outer diameter and can be protruded into heat exchanger tube, and being cased in the middle part of taper expansion rod can
It is inserted into the taper expansion sleeve of heat exchanger tube, there is the taper matched with taper expansion rod end taper in taper expansion sleeve front end；Taper
Expansion rod is equipped with external screw thread, and the outside of taper expansion sleeve is equipped with swelling nut, stretches out on the taper expansion rod of three-legged support and set
Nut and homalocephalus is straightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821648547.2U CN208928902U (en) | 2018-10-11 | 2018-10-11 | Mechanism is straightened in a kind of heat exchanger tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821648547.2U CN208928902U (en) | 2018-10-11 | 2018-10-11 | Mechanism is straightened in a kind of heat exchanger tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208928902U true CN208928902U (en) | 2019-06-04 |
Family
ID=66724113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821648547.2U Active CN208928902U (en) | 2018-10-11 | 2018-10-11 | Mechanism is straightened in a kind of heat exchanger tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208928902U (en) |
-
2018
- 2018-10-11 CN CN201821648547.2U patent/CN208928902U/en active Active
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