CN103949554B - A kind of expansion pipe device and production technology thereof - Google Patents
A kind of expansion pipe device and production technology thereof Download PDFInfo
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- CN103949554B CN103949554B CN201410202698.5A CN201410202698A CN103949554B CN 103949554 B CN103949554 B CN 103949554B CN 201410202698 A CN201410202698 A CN 201410202698A CN 103949554 B CN103949554 B CN 103949554B
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Abstract
The present invention relates to a kind of expansion pipe device and production technology thereof.Comprise pressure pipe, be provided with expand tube frock, described expand tube frock comprises connector, and described connector lateral wall is provided with flange, and described lip diameter is greater than described pressure pipe diameter, and described connector is also connected with stay cord.The present invention conveniently can install pressure pipe in finned tube, and by the expansive force of flange to pressure pipe, pressure pipe is fitted finned tube inwall completely, ensures do not have air between pressure pipe and finned tube, and can not be drawn out finned tube.
Description
Technical field
The present invention relates to a kind of expansion pipe device and production technology thereof.
Background technology
Finned tube is a kind of heat exchanger tube, in order to improve heat exchange efficiency, usually on the surface of heat exchanger tube by with fin, increase the external surface area (or internal surface area) of heat exchanger tube, thus reach the object improving heat exchange efficiency.
In finned tube, a pressure pipe can be set, pressure pipe can strengthen 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, because once have air between pressure pipe and finned tube, can affect the heat transfer effect of finned tube, what lead in such as pressure pipe is cryogenic liquid, needs finned tube to absorb heat and vaporizes to cryogenic liquid, and once have air between finned tube and pressure pipe, the effect of vaporization can be affected.
Therefore, generally that the diameter of pressure pipe is arranged identical with interior diameter that is finned tube, but arrange like this and be difficult to pressure pipe to be inserted in finned tube, especially when pressure pipe grows to tens meters time, more difficult pressure pipe to be 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 present invention is directed to prior art deficiency, a kind of expansion pipe device and production technology thereof are provided, it conveniently can install pressure pipe in finned tube, and by the expansive force of flange to pressure pipe, pressure pipe is fitted finned tube inwall completely, ensure there is no air between pressure pipe and finned tube, and can not finned tube be drawn out.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: a kind of expansion pipe device and production technology thereof, comprise pressure pipe, be provided with expand tube frock, described expand tube frock comprises connector, described connector lateral wall is provided with flange, and described lip diameter is greater than described pressure pipe diameter, and described connector is also connected with stay cord.During use, the pressure pipe first diameter being less than finned tube is inserted in finned tube, then pressure pipe is passed in stay cord end, pull stay cord again, the flange of connector enters from one end of pressure pipe, make in the process of connector movement the diameter of pressure pipe squeezed large, expand, and finned tube inwall of fitting, until connector completes the expansion effect to pressure pipe entirety.
In technique scheme, described connector upper side offers one number service hole, the side that described connector is connected with this upper side offers No. two through holes, offering deep-slotted chip breaker between described one number service hole and described No. two through holes makes described one number service hole and described No. two through holes be interconnected, and described stay cord is connected described connector through described one number service hole with described No. two through holes.The position diameter that connector is connected with stay cord is less, makes stay cord fixing point only be subject to the power in a direction, thus makes the good fixing effect of stay cord and connector, prevents stay cord stay cord when pulling connector to be separated with connector.
In technique scheme, described connector center side position offers No. three through holes, and No. four through holes are offered on the center of corresponding another side, this side, 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.Straight line residing for stay cord is positioned at the center of connector, makes the flange of stay cord when pulling connector on connector identical to pressure pipe power everywhere, thus pressure pipe is inflated more even.
In technique scheme, described flange shape and described pressure pipe mating shapes.Make pressure pipe by flange expand more even, ensure 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.
Present invention also offers a kind of production technology of producing above-mentioned expansion pipe device, its production stage is briefly described as follows: 1) first insert in finned tube by pressure pipe; 2) then pressure pipe is passed in stay cord end; 3) pull stay cord, connector moved, make in the process of connector movement the diameter of pressure pipe squeezed large, expand.Adopt this production technology, conveniently in finned tube, pressure pipe can be installed, and by the expansive force of flange to pressure pipe, pressure pipe is fitted finned tube inwall completely, ensures there is no air between pressure pipe and finned tube, and can not finned tube be drawn out.
The present invention compared with prior art, there is following beneficial effect: the present invention conveniently can install pressure pipe in finned tube, and by the expansive force of flange to pressure pipe, pressure pipe is fitted finned tube inwall completely, ensure there is no air between pressure pipe and finned tube, and can not finned tube be drawn out.The position diameter that connector is connected with stay cord is less, makes stay cord fixing point only be subject to the power in a direction, thus makes the good fixing effect of stay cord and connector, prevents stay cord stay cord when pulling connector to be separated with connector.Straight line residing for stay cord is positioned at the center of connector, make the flange of stay cord when pulling connector on connector identical to pressure pipe power everywhere, thus pressure pipe is inflated more even, ensure all the 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 connector using state schematic diagram of the present invention.
Fig. 2 is connector schematic cross-section of the present invention.
Fig. 3 is connector schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail: see Fig. 1, 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, described connector 2 lateral wall is provided with flange 3, described flange 3 diameter is greater than described pressure pipe 1 diameter, and it is identical with the diameter of finned tube inwall, described flange 3 shape and described pressure pipe 1 mating shapes, described connector 2 is also connected with stay cord 4.
Described connector 2 upper side offers one number service hole 21, the side that described connector 2 is connected with this upper side offers No. two through holes 22, offering deep-slotted chip breaker 23 between described one number service hole 21 and described No. two through holes 22 makes described one number service hole 21 be interconnected with described No. two through holes 22, and 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 that connector 2 is connected with stay cord 4 is less, makes stay cord 4 fixing point only be subject to the power in a direction, thus makes stay cord 4 and the good fixing effect of connector 2, prevents stay cord 4 stay cord 4 when pulling connector 2 to be separated with connector 2.
Described connector 2 center side position offers No. three through holes 24, and No. four through holes 25 are offered on the center of corresponding another side, this side, described No. three through holes 24 are interconnected by groove 26 with described No. four through holes 25, the diameter of end, described stay cord 4 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, after one end that stay cord 4 diameter is larger contacts with connector 2, No. three through holes 24 and No. four through holes 25 cannot be passed, play fixing effect.Residing for stay cord 4, straight line is positioned at the center of connector 2, make the flange of stay cord 4 when pulling connector 2 on connector 3 pairs of pressure pipes 1 power everywhere identical, thus pressure pipe 1 is inflated more even, ensure all the 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 diameter is less can pass from No. two through holes 22 through behind one number service hole 21, then penetrates in No. three through holes 24, passes from No. four through holes 25; Also can adopt separately the tie point at one number service hole 21 and No. two through hole 22 places or adopt the tie point of No. three through holes 24 and No. four through holes 25 to be fixed stay cord separately.
Present invention also offers a kind of production technology of producing above-mentioned expansion pipe device, its production stage is briefly described as follows: during use, the pressure pipe 1 first diameter being less than finned tube is inserted in finned tube, then 4, stay cord end is passed pressure pipe 1, pull stay cord 4 again, the flange 3 of connector 2 enters from one end of pressure pipe 1, make in the process of connector 2 movement the diameter of pressure pipe 1 squeezed large, expand, and finned tube inwall of fitting, until connector 2 completes the expansion effect to pressure pipe 1 entirety.Adopt this production technology, conveniently pressure pipe 1 can be installed in finned tube, and by the expansive force of flange 3 pairs of pressure pipes 1, pressure pipe 1 is fitted finned tube inwall completely, ensure there is no air between pressure pipe 1 and finned tube, and can not finned tube be drawn out.
Claims (3)
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), described connector (2) upper side offers one number service hole (21), the side that described connector (2) is connected with this upper side offers No. two through holes (22), offering deep-slotted chip breaker (23) between described one number service hole (21) and described No. two through holes (22) makes described one number service hole (21) and described No. two through holes (22) be interconnected, described connector (2) is also connected with stay cord (4), described stay cord (4) is connected described connector (2) through described one number service hole (21) with described No. two through holes (22), described connector (2) lateral wall is provided with flange (3), described flange (3) diameter is greater than described pressure pipe (1) diameter, described flange (3) shape and described pressure pipe (1) mating shapes.
2. a kind of expansion pipe device as claimed in claim 1, it is characterized in that: described connector (2) center side position offers No. three through holes (24), and No. four through holes (25) are offered on the center of corresponding another side, this side, described No. three through holes (24) and described No. four through holes (25) are interconnected by groove (26), 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).
3. carry out a production technology for expand tube with expansion pipe device as claimed in claim 1, it is characterized in that comprising the following steps: 1) first pressure pipe (1) is inserted in finned tube; 2) then pressure pipe (1) is passed in stay cord (4) end; 3) pull stay cord (4), make connector (2) mobile, make in the process of connector (2) movement the diameter of pressure pipe (1) squeezed greatly, expand.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202698.5A CN103949554B (en) | 2014-05-14 | 2014-05-14 | A kind of expansion pipe device and production technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202698.5A CN103949554B (en) | 2014-05-14 | 2014-05-14 | A kind of expansion pipe device and production technology thereof |
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| Publication Number | Publication Date |
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| CN103949554A CN103949554A (en) | 2014-07-30 |
| CN103949554B true CN103949554B (en) | 2015-10-28 |
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| CN201410202698.5A Active CN103949554B (en) | 2014-05-14 | 2014-05-14 | A kind of expansion pipe device and production technology thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6670543B2 (en) * | 2014-12-11 | 2020-03-25 | 住友重機械工業株式会社 | Molding apparatus and molding method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB729989A (en) * | 1952-08-15 | 1955-05-11 | Babcock & Wilcox Ltd | Improvements in the manufacture of tubular heat exchangers |
| JPS55139130A (en) * | 1979-04-16 | 1980-10-30 | Mitsubishi Electric Corp | Manufacture of plate fin tube heat exchanger |
| CN102538541A (en) * | 2012-02-10 | 2012-07-04 | 无锡辉腾科技有限公司 | High-pressure finned tube |
| CN202571047U (en) * | 2012-04-09 | 2012-12-05 | 南通海利源船舶设备工程有限公司 | Pulled expansion device |
| CN103357769A (en) * | 2012-04-09 | 2013-10-23 | 南通海利源船舶设备工程有限公司 | Drawing and expanding device |
| CN103398617A (en) * | 2013-07-31 | 2013-11-20 | 无锡柯马机械有限公司 | High-pressure radiating pipe |
| CN203862878U (en) * | 2014-05-14 | 2014-10-08 | 宁波明欣化工机械有限责任公司 | Tube expanding device |
-
2014
- 2014-05-14 CN CN201410202698.5A patent/CN103949554B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB729989A (en) * | 1952-08-15 | 1955-05-11 | Babcock & Wilcox Ltd | Improvements in the manufacture of tubular heat exchangers |
| JPS55139130A (en) * | 1979-04-16 | 1980-10-30 | Mitsubishi Electric Corp | Manufacture of plate fin tube heat exchanger |
| CN102538541A (en) * | 2012-02-10 | 2012-07-04 | 无锡辉腾科技有限公司 | High-pressure finned tube |
| CN202571047U (en) * | 2012-04-09 | 2012-12-05 | 南通海利源船舶设备工程有限公司 | Pulled expansion device |
| CN103357769A (en) * | 2012-04-09 | 2013-10-23 | 南通海利源船舶设备工程有限公司 | Drawing and expanding device |
| CN103398617A (en) * | 2013-07-31 | 2013-11-20 | 无锡柯马机械有限公司 | High-pressure radiating pipe |
| CN203862878U (en) * | 2014-05-14 | 2014-10-08 | 宁波明欣化工机械有限责任公司 | Tube expanding device |
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| Publication number | Publication date |
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| CN103949554A (en) | 2014-07-30 |
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