CN203349683U - Guiding device for insertion of U-shaped tubes in tubular heat exchanger - Google Patents
Guiding device for insertion of U-shaped tubes in tubular heat exchanger Download PDFInfo
- Publication number
- CN203349683U CN203349683U CN2013202787031U CN201320278703U CN203349683U CN 203349683 U CN203349683 U CN 203349683U CN 2013202787031 U CN2013202787031 U CN 2013202787031U CN 201320278703 U CN201320278703 U CN 201320278703U CN 203349683 U CN203349683 U CN 203349683U
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- Prior art keywords
- heat exchanger
- shaped
- annular groove
- poling
- afterbody
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Abstract
Disclosed is a guiding device for insertion of U-shaped tubes in a tubular heat exchanger. The guiding device (3) comprises a tail portion (3.1), a centering section (3.2), an annular groove (3.3), a transition section (3.4), a guiding head (3.5) and an O-shaped sealing ring. In the process of tube insertion, a worker only needs to insert the tail portions, the centering sections and the transition sections of two guiding devices into inner holes in the two ends of one U-shaped tube, and fix the two guiding devices to the two ends of the U-shaped tube tightly through the fastening and sealing effects of the O-shaped sealing ring, the U-shaped tube can penetrate through pipe insertion inner holes in a baffle plate and a tube plate automatically through the two guiding devices under the pushing effect of external force P, and the worker only needs to pull out the two guiding devices lightly after tube insertion operation is completed and the U-shaped tube is installed in place. The guiding device is easy to manufacture, convenient to use, and capable of effectively preventing the U-shaped tubes from being scratched and improving tube insertion efficiency.
Description
Technical field
The utility model belongs to the mounting technology field, especially a kind of guider during for the U-shaped pipe poling of pipe heat exchanger.
Background technology
U-shaped pipe is the vitals in tubing heat exchanger, for the large tubular heat exchanger, hundreds of U-shaped pipe need to be through in tube sheet and deflection plate and it is fixed, the poling process is one of critical process of large tubular heat exchanger, because there is natural bow in U-shaped pipe under Action of Gravity Field, therefore in the poling process, should avoid tube sheet or deflection plate to scratch U-shaped pipe as far as possible, otherwise can affect the service efficiency of large tubular heat exchanger.
How under the prerequisite that improves poling efficiency, to avoid again U-shaped pipe to be scratched is the matter of utmost importance that the poling operation is anxious to be solved.
Summary of the invention
For addressing the above problem, the utility model has designed a kind of guider during for the U-shaped pipe poling of pipe heat exchanger, and this guider is made simple, easy to use, can effectively avoid U-shaped pipe to be scratched, and improves poling efficiency.
For achieving the above object, the utility model adopts following technical scheme:
A kind of guider during for the U-shaped pipe poling of pipe heat exchanger, the external diameter of setting U-shaped pipe in pipe heat exchanger equals D and its internal diameter equals d, sets the poling diameter of bore of deflection plate and tube sheet in pipe heat exchanger and is D
1, described D is less than described D
1, this guider comprises afterbody, centering section, annular groove, changeover portion and guide head, feature of the present utility model is as follows:
Afterbody with circular cone guide section connects with the centering section by annular groove, the centering section connects with changeover portion by annular groove again, changeover portion connects with guide head, equipped O RunddichtringO in annular groove, the diameter of the diameter=changeover portion of the maximum gauge of afterbody=centering section=described d, the profile of guide head is bullet-shaped, the maximum gauge of guide head=described D
1the overall length of described sub warhead={ 15+L} ㎜, described L is the effective length of described sub warhead, the axial length of centering section is greater than the axial length of changeover portion, the axial length of centering section also is greater than the axial length of afterbody, the chamfering radius of circle of annular groove and the individual pen radius of described O RunddichtringO are complementary, the individual pen diameter of the groove width of annular groove=described O RunddichtringO.
The coning angle of the described circular cone guide section of above-mentioned afterbody is controlled at 135 °～145 °.
The maximum gauge of described O RunddichtringO when horizontal positioned={ described d+[0.2 ~ 0.3] } ㎜.
The effective length L of described sub warhead is controlled at described D
1～1.5 times of described D
1.
Owing to adopting technical scheme as mentioned above, the utility model produces following beneficial effect:
1, guider of the present utility model have simple in structure, make the characteristics such as easy, easy to use, can meet the demand of the quick poling of different size pipe heat exchanger.
2, guider of the present invention can effectively avoid U-shaped pipe to be scratched, and has improved poling efficiency.
The accompanying drawing explanation
Fig. 1 is the structural representation sketch of the utility model guider.
Fig. 2 is the simplified schematic diagram of guider during for the pipe heat exchanger poling.
In above-mentioned figure: 1-U type pipe; The 2-deflection plate; The 3-guider; 3.1-afterbody; 3.2-centering section; 3.3-annular groove; 3.4-changeover portion; 3.5-guide head; The 4-tube sheet.
The specific embodiment
The utility model is a kind of guider during for the U-shaped pipe poling of pipe heat exchanger, and this guider is made simple, easy to use, can effectively avoid U-shaped pipe to be scratched, and improves poling efficiency.
In conjunction with Fig. 2, the external diameter of setting U-shaped pipe 1 in pipe heat exchanger equals D and its internal diameter equals d, sets the poling diameter of bore of deflection plate 2 and tube sheet 4 in pipe heat exchanger and is D
1, described D is less than described D
1although, the specification difference of pipe heat exchanger, described D, described d and described D
1set.
In conjunction with Fig. 1, guider 3 of the present utility model comprises afterbody 3.1, centering section 3.2, annular groove 3.3, changeover portion 3.4 and guide head 3.5, afterbody 3.1 with circular cone guide section connects with centering section 3.2 by annular groove 3.3, centering section 3.2 connects with changeover portion 3.4 by annular groove 3.3 again, changeover portion 3.4 connects with guide head 3.5, the interior equipped O RunddichtringO of annular groove 3.3, the diameter of the diameter=changeover portion of the maximum gauge of afterbody=centering section=described d, the coning angle of the described circular cone guide section of afterbody is controlled at 135 °～145 °, afterbody can penetrate among the endoporus of U-shaped pipe 1 smoothly by described circular cone guide section, the diameter of bore of common U-shaped pipe 1 is less, therefore the axial length of described circular cone guide section need not arrange longer.
The profile of guide head 3.5 is bullet-shaped, the maximum gauge of guide head=described D
1, the overall length of described sub warhead=and 15+L} ㎜, described L is the effective length of described sub warhead, and the effective length L of described sub warhead is controlled at described D
1～1.5 times of described D
1, described sub warhead can pass the poling endoporus of deflection plate 2 and tube sheet 4 smoothly.
The axial length of centering section 3.2 is greater than the axial length of changeover portion 3.4, the axial length of centering section 3.2 also is greater than the axial length of afterbody 3.1, the chamfering radius of circle of annular groove 3.3 and the individual pen radius of described O RunddichtringO are complementary, the individual pen diameter of the groove width of annular groove=described O RunddichtringO, described O RunddichtringO when horizontal positioned maximum gauge={ described d+[0.2 ~ 0.3] } ㎜, described O RunddichtringO can effectively prevent that guider 3 breaks away from the endoporus of U-shaped pipe 1 in the poling process because of inertia.
During poling, only the afterbody of two guiders 3 3.1, centering section 3.2 and changeover portion 3.4 need be inserted among the endoporus at U-shaped pipe 1 two ends, under the fit sealing effect of described O RunddichtringO, make two guiders 3 closely be fixed on U-shaped pipe 1 two ends, under the impetus of external force P, just can automatically pass through the poling endoporus of deflection plate 2 and tube sheet 4 by two guiders 3.After installation that poling has operated afterwards and U-shaped pipe 1 puts in place, only two guiders 3 need be extracted and got final product gently.
Claims (4)
1. the guider during for the U-shaped pipe poling of pipe heat exchanger, the external diameter of setting U-shaped pipe (1) in pipe heat exchanger equals D and its internal diameter equals d, sets the poling diameter of bore of deflection plate (2) and tube sheet (4) in pipe heat exchanger and is D
1, described D is less than described D
1, this guider (3) comprises afterbody (3.1), centering section (3.2), annular groove (3.3), changeover portion (3.4) and guide head (3.5), it is characterized in that:
Afterbody (3.1) with circular cone guide section connects with centering section (3.2) by annular groove (3.3), centering section (3.2) connects with changeover portion (3.4) by annular groove (3.3) again, changeover portion (3.4) connects with guide head (3.5), equipped O RunddichtringO in annular groove (3.3), the diameter of the diameter=changeover portion of the maximum gauge of afterbody=centering section=described d, the profile of guide head (3.5) is bullet-shaped, the maximum gauge of guide head=described D
1the overall length of described sub warhead={ 15+L} ㎜, described L is the effective length of described sub warhead, the axial length of centering section is greater than the axial length of changeover portion, the axial length of centering section also is greater than the axial length of afterbody, the chamfering radius of circle of annular groove and the individual pen radius of described O RunddichtringO are complementary, the individual pen diameter of the groove width of annular groove=described O RunddichtringO.
2. a kind of guider during for the U-shaped pipe poling of pipe heat exchanger according to claim 1, it is characterized in that: the coning angle of the described circular cone guide section of afterbody (3.1) is controlled at 135 °～145 °.
3. a kind of guider during for the U-shaped pipe poling of pipe heat exchanger according to claim 1 is characterized in that: the maximum gauge of described O RunddichtringO when horizontal positioned={ described d+[0.2 ~ 0.3] } ㎜.
4. a kind of guider during for the U-shaped pipe poling of pipe heat exchanger according to claim 1, it is characterized in that: the effective length L of described sub warhead is controlled at described D
1～1.5 times of described D
1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202787031U CN203349683U (en) | 2013-05-21 | 2013-05-21 | Guiding device for insertion of U-shaped tubes in tubular heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202787031U CN203349683U (en) | 2013-05-21 | 2013-05-21 | Guiding device for insertion of U-shaped tubes in tubular heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203349683U true CN203349683U (en) | 2013-12-18 |
Family
ID=49749574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202787031U Expired - Fee Related CN203349683U (en) | 2013-05-21 | 2013-05-21 | Guiding device for insertion of U-shaped tubes in tubular heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203349683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695668A (en) * | 2016-12-05 | 2017-05-24 | 无锡化工装备股份有限公司 | Special tool for U-shaped tube penetrating |
-
2013
- 2013-05-21 CN CN2013202787031U patent/CN203349683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695668A (en) * | 2016-12-05 | 2017-05-24 | 无锡化工装备股份有限公司 | Special tool for U-shaped tube penetrating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20210521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |