CN203862878U - Tube expanding device - Google Patents
Tube expanding device Download PDFInfo
- Publication number
- CN203862878U CN203862878U CN201420245745.XU CN201420245745U CN203862878U CN 203862878 U CN203862878 U CN 203862878U CN 201420245745 U CN201420245745 U CN 201420245745U CN 203862878 U CN203862878 U CN 203862878U
- Authority
- CN
- China
- Prior art keywords
- holes
- connector
- stay cord
- pressure pipe
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to a tube expanding device which comprises a pressure-resisting tube provided with a pipe expanding tool, wherein the tube expanding tool comprises a connecting piece, a flange is arranged on the outer side wall of the connecting piece, the diameter of the flange is larger than that of the pressure-resisting tube, and the connecting piece is further connected with a pull rope. According to the tube expanding device, the pressure-resisting tube can be conveniently mounted in a finned tube and can be completely attached onto the inner wall of the finned tube through expansion force of the flange on the pressure-resisting tube, so that no air exists between the pressure-resisting tube and the finned tube, and the finned tube cannot be pulled out.
Description
Technical field
The utility model relates to a kind of expansion pipe device.
Background technology
Finned tube is a kind of heat exchanger tube, in order to improve heat exchange efficiency, conventionally on the surface of heat exchanger tube by with fin, increase the external surface area (or internal surface area) of heat exchanger tube, thereby reach the object that improves heat exchange efficiency.
In finned tube, a pressure pipe can be set, pressure pipe can be strengthened the intensity of heat exchanger tube, can keep good heat transfer effect again, but prerequisite is very close to each other between pressure pipe and finned tube, once because there is air between pressure pipe and finned tube, can affect the heat transfer effect of finned tube, be cryogenic liquid such as what lead in pressure pipe, needs finned tube heat absorption to vaporize to cryogenic liquid, once and between finned tube and pressure pipe, there is air, can affect the effect of vaporization.
Therefore, generally that the interior diameter with finned tube of the diameter setting of pressure pipe is identical, but arrange like this, be difficult to pressure pipe to be inserted in finned tube, especially when pressure pipe grows to tens meters, more difficult pressure pipe is inserted in finned tube completely, not only waste time and energy, and be easy to damage pressure pipe or finned tube.
Summary of the invention
The utility model is not enough for prior art, a kind of expansion pipe device is provided, it can conveniently install pressure pipe in finned tube, and the expansive force by flange to pressure pipe, make the pressure pipe finned tube inwall of fitting completely, guaranteeing does not have air between pressure pipe and finned tube, and can not be drawn out finned tube.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of expansion pipe device, comprise pressure pipe, be provided with expand tube frock, described expand tube frock comprises connector, on described connector lateral wall, be provided with flange, described lip diameter is greater than described pressure pipe diameter, and described connector is also connected with stay cord.During use, the pressure pipe that first diameter is less than to finned tube is inserted in finned tube, then pressure pipe is passed in stay cord end, pull again stay cord, the flange of connector enters from one end of pressure pipe, in the process moving at connector, make the diameter of pressure pipe squeezed greatly, expand, and laminating finned tube inwall, until connector completes the expansion effect to pressure pipe integral body.
In technique scheme, described connector upper side offers one number service hole, on the side that described connector is connected with this upper side, offer No. two through hole, between described one number service hole and described No. two through holes, offer deep-slotted chip breaker described one number service hole and described No. two through holes are interconnected, described stay cord is connected described connector through described one number service hole with described No. two through holes.The position diameter being connected with stay cord on connector is less, makes stay cord fixing point only be subject to the power of a direction, thereby makes the good fixing effect of stay cord and connector, prevents that stay cord stay cord when pulling connector is separated with connector.
In technique scheme, on center, described connector side, offer No. three through hole, and on the center of corresponding another side, this side, offer through hole No. four, described No. three through holes and described No. four through holes are interconnected by groove, the diameter of end, described stay cord one end is greater than the diameter of described No. three through holes, the diameter of described stay cord other end end is less than the diameter of described No. three through holes, and one end that described stay cord diameter is less is connected with described connector with described No. four through holes through described No. three through holes.Stay cord straight line of living in is positioned at the center of connector, makes stay cord flange on connector when pulling connector identical to pressure pipe power everywhere, thus make that pressure pipe is inflated more even.
In technique scheme, described flange shape and described pressure pipe shape match.What make that pressure pipe expanded by flange is more even, guarantees all fitting with finned tube of pressure pipe lateral wall everywhere, pressure pipe lateral wall everywhere and all very close to each other between finned tube.
The utility model compared with prior art, there is following beneficial effect: the utility model can conveniently be installed pressure pipe in finned tube, and the expansive force by flange to pressure pipe, make the pressure pipe finned tube inwall of fitting completely, guaranteeing does not have air between pressure pipe and finned tube, and can not be drawn out finned tube.The position diameter being connected with stay cord on connector is less, makes stay cord fixing point only be subject to the power of a direction, thereby makes the good fixing effect of stay cord and connector, prevents that stay cord stay cord when pulling connector is separated with connector.Stay cord straight line of living in is positioned at the center of connector, make stay cord flange on connector when pulling connector identical to pressure pipe power everywhere, thereby what make that pressure pipe is inflated is more even, guarantee all fitting with finned tube of pressure pipe lateral wall everywhere, pressure pipe lateral wall everywhere and all very close to each other between finned tube.
Accompanying drawing explanation
Fig. 1 is that the utility model connector is used view.
Fig. 2 is the utility model connector schematic cross-section.
Fig. 3 is the utility model connector schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail: referring to Fig. 1-Fig. 3, a kind of expansion pipe device, comprise pressure pipe 1, be provided with expand tube frock, described expand tube frock comprises connector 2, the diameter of connector 2 is less than the diameter of pressure pipe 1, on described connector 2 lateral walls, be provided with flange 3, described flange 3 diameters are greater than described pressure pipe 1 diameter, and identical with the diameter of finned tube inwall, described flange 3 shapes and described pressure pipe 1 shape match, and described connector 2 is also connected with stay cord 4.
Described connector 2 upper sides offer one number service hole 21, on the side that described connector 2 is connected with this upper side, offer No. two through hole 22, between described one number service hole 21 and described No. two through holes 22, offer deep-slotted chip breaker 23 described one number service hole 21 and described No. two through holes 22 are interconnected, described stay cord 4 is connected described connector 2 through described one number service hole 21 with described No. two through holes 22.The position diameter being connected with stay cord 4 on connector 2 is less, makes stay cord 4 fixing points only be subject to the power of a direction, thereby makes the good fixing effect of stay cord 4 and connector 2, prevents that stay cord 4 stay cord 4 when pulling connector 2 is separated with connector 2.
Described connector offers through hole 24 No. three on 2 centers, side, and on the center of corresponding another side, this side, offer through hole 25 No. four, described No. three through holes 24 are interconnected by groove 26 with described No. four through holes 25, the diameter of described stay cord 4 ends, one end is greater than the diameter of described No. three through holes 24, the diameter of described stay cord 4 other end ends is less than the diameter of described No. three through holes 24, one end that described stay cord 4 diameters are less is connected with described connector 2 with described No. four through holes 25 through described No. three through holes 24, after one end that stay cord 4 diameters are larger contacts with connector 2, cannot pass No. three through holes 24 and No. four through holes 25, play fixing effect.Stay cord 4 straight line of living in is positioned at the center of connector 2, make stay cord 43 pairs of pressure pipes 1 of the flange on connector power everywhere when pulling connector 2 identical, thereby what make that pressure pipe 1 is inflated is more even, guarantee all fitting with finned tube of pressure pipe 1 lateral wall everywhere, pressure pipe 1 lateral wall everywhere and all very close to each other between finned tube.
One end that stay cord 4 diameters are less can pass from No. two through holes 22 through behind one number service hole 21, then penetrates in No. three through holes 24, from No. four through holes 25, passes; Also can adopt separately the tie point at one number service hole 21 and No. two through hole 22 places or adopt separately the tie point of No. three through holes 24 and No. four through holes 25 to be fixed stay cord.
During use, the pressure pipe 1 that first diameter is less than to finned tube is inserted in finned tube, then pressure pipe 1 is passed in stay cord 4 ends, pull again stay cord 4, the flange 3 of connector 2 enters from one end of pressure pipe 1, in the process moving at connector 2, make the diameter of pressure pipe 1 squeezed greatly, expand, and laminating finned tube inwall, until connector 2 completes the expansion effect to pressure pipe 1 integral body.
Claims (4)
1. an expansion pipe device, comprise pressure pipe (1), it is characterized in that: be provided with expand tube frock, described expand tube frock comprises connector (2), on described connector (2) lateral wall, be provided with flange (3), described flange (3) diameter is greater than described pressure pipe (1) diameter, and described connector (2) is also connected with stay cord (4).
2. a kind of expansion pipe device as claimed in claim 1, it is characterized in that: described connector (2) upper side offers one number service hole (21), on the side that described connector (2) is connected with this upper side, offer No. two through holes (22), between described one number service hole (21) and described No. two through holes (22), offer deep-slotted chip breaker (23) described one number service hole (21) and described No. two through holes (22) are interconnected, described stay cord (4) is connected described connector (2) through described one number service hole (21) with described No. two through holes (22).
3. a kind of expansion pipe device as claimed in claim 1, it is characterized in that: described connector (2) offers No. three through holes (24) on center, side, and on the center of corresponding another side, this side, offer No. four through holes (25), described No. three through holes (24) are interconnected by groove (26) with described No. four through holes (25), the diameter of described stay cord (4) end, one end is greater than the diameter of described No. three through holes (24), the diameter of described stay cord (4) other end end is less than the diameter of described No. three through holes (24), one end that described stay cord (4) diameter is less is connected with described connector (2) with described No. four through holes (25) through described No. three through holes (24).
4. a kind of expansion pipe device as claimed in claim 1, is characterized in that: described flange (3) shape and described pressure pipe (1) shape match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245745.XU CN203862878U (en) | 2014-05-14 | 2014-05-14 | Tube expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245745.XU CN203862878U (en) | 2014-05-14 | 2014-05-14 | Tube expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203862878U true CN203862878U (en) | 2014-10-08 |
Family
ID=51643868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420245745.XU Active CN203862878U (en) | 2014-05-14 | 2014-05-14 | Tube expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203862878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949554A (en) * | 2014-05-14 | 2014-07-30 | 宁波明欣化工机械有限责任公司 | Pipe expansion device and production technology thereof |
-
2014
- 2014-05-14 CN CN201420245745.XU patent/CN203862878U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949554A (en) * | 2014-05-14 | 2014-07-30 | 宁波明欣化工机械有限责任公司 | Pipe expansion device and production technology thereof |
| CN103949554B (en) * | 2014-05-14 | 2015-10-28 | 宁波明欣化工机械有限责任公司 | A kind of expansion pipe device and production technology thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203862878U (en) | Tube expanding device | |
| CN103949554B (en) | A kind of expansion pipe device and production technology thereof | |
| CN204313686U (en) | A kind of can the muffler of embedding capillary | |
| CN203787598U (en) | Cable distribution box special grounding wire | |
| CN104390491A (en) | Efficient heat exchanger | |
| CN204320901U (en) | Cooler expand tube frock | |
| CN202958007U (en) | New type quick heater | |
| CN204148386U (en) | For the pipe-expanding device of elliptical tube | |
| CN203432432U (en) | Fin | |
| CN203223676U (en) | Reducing connecting device of water supply and drainage pipe | |
| CN203418217U (en) | Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate | |
| CN203305143U (en) | Device for installing ring part in small deep hole | |
| CN202371912U (en) | Foamed plug for solar water heater | |
| CN204141872U (en) | A kind of header inner bag being provided with cushioning fender | |
| CN204517268U (en) | A kind of aluminium hydraulic pressed connecting pipe drainage connecting plate erector | |
| CN204628931U (en) | A kind of cooling pipe | |
| CN209945114U (en) | Heat exchanger copper pipe and tube sheet connection structure with high expansion joint success rate | |
| CN203533703U (en) | Water tank for solar heating apparatus | |
| CN203642763U (en) | Spiral orifice plate-type flow-disturbing apparatus and heat exchanger | |
| CN203348754U (en) | Large steel pipe | |
| CN203364482U (en) | Header in solar collector | |
| CN202572274U (en) | Expansion type broken tube gripping device | |
| CN203978527U (en) | A kind of drain discharge system for generator set | |
| CN203375746U (en) | Connecting pipe for solar water heating engineering headers | |
| CN201647978U (en) | Separating funnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |