CN106141000A - A kind of boiler pipe-expanding device of applicable small space - Google Patents
A kind of boiler pipe-expanding device of applicable small space Download PDFInfo
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- CN106141000A CN106141000A CN201510176678.XA CN201510176678A CN106141000A CN 106141000 A CN106141000 A CN 106141000A CN 201510176678 A CN201510176678 A CN 201510176678A CN 106141000 A CN106141000 A CN 106141000A
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- pipe
- tube expander
- connecting rod
- boiler
- expanding device
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Abstract
The present invention relates to the boiler pipe-expanding device of a kind of applicable small space, described boiler includes smoke pipe and the boiler front tube sheet being located at smoke pipe two ends and little smoke chamber pipe plate, described boiler pipe-expanding device includes electric tube expander, tube expander and connecting rod, described electric tube expander is connected with tube expander by connecting rod, described connecting rod and tube expander are through smoke pipe, described tube expander is directed at little smoke chamber pipe plate and the junction of smoke pipe, electric tube expander transmits power by connecting rod to tube expander, making little smoke chamber pipe plate and smoke pipe expanded joint, described mandrel outer is arranged with multiple roller contrary with plug rotation direction.Compared with prior art, the present invention have can utilize clearing at front tube sheet, cost-effective, be suitable for the advantage such as small space.
Description
Technical field
The present invention relates to a kind of pipe-expanding device, especially relate to the boiler pipe-expanding device of a kind of applicable small space.
Background technology
The tube sheet of industrial fuel oil gas boiler welds with the connected mode of heating surface pipe and expanded joint two ways.Expanded joint
Mode due to its be conveniently replaceable, the feature such as stress is little, be still widely used on the Methods of Oil-Gas Fired Boilers such as WNS.
Electric tube expander typically has electronic, hydraulic pressure and the form such as manually, and manual mode is applicable to less the repairing of tube expansion workload
The occasions such as reason.In Boiler Manufacture, usually use electronic and hydraulic way driving.Hydraulic-driven sets relatively
Standby cost is higher, and electric tube expander uses commonplace in factory.In WNS wet-back boiler structure typically
Having little smoke-box, the space ratio of little smoke-box is narrow.The electric tube expander front tube sheet open in space uses does not appoints
What problem, but just cannot use at the little smoke-box of narrow space.
The open a kind of pipe-expanding device of Chinese patent CN203695789U, including the fixing expander roll connected and swollen head,
The top of swollen head is cone, the diameter of swollen head from top to swollen 1/4 at be gradually increased, to swollen at swollen 1/4
Be gradually reduced at 1/2, be gradually increased at swollen 3/4 at swollen 1/2, at swollen 3/4 to bottom by
The least, diameter at swollen 3/4 than swollen 1/4 at diameter big.The structure of this pipe-expanding device is relatively simple,
Can play increasing the effect that position preheats in advance to the setting at swollen 1/2 at swollen 1/4, but this tube expansion
Device can not transmission flexibly, operation strategies is narrower.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and before providing one to utilize
Clearing, small space, flexibly boiler pipe-expanding device cost-effective, applicable at tube sheet.
The purpose of the present invention can be achieved through the following technical solutions:
The boiler pipe-expanding device of a kind of applicable small space, described boiler includes smoke pipe and is located at the pot at smoke pipe two ends
Stokehold tube sheet and little smoke chamber pipe plate, described boiler pipe-expanding device includes electric tube expander, tube expander and connecting rod, described swollen
Pipe machine is connected with tube expander by connecting rod, and described connecting rod and tube expander are through smoke pipe, and described tube expander alignment is little
Smoke chamber pipe plate and the junction of smoke pipe, electric tube expander transmits power by connecting rod to tube expander, make little smoke chamber pipe plate with
Smoke pipe expanded joint.
Described tube expander includes that plug, described mandrel outer are arranged with multiple roller contrary with plug rotation direction, institute
Stating plug one end and connecting rod clamping, the other end is directed at little smoke chamber pipe plate and the junction of smoke pipe, the axle of described roller
An angle it is provided with between the axle center of the heart and plug.
Described connecting rod includes connecting rod body, and this connecting rod body one end is provided with convex with what electric tube expander coupling was connected
Block, the other end is provided with and mates, with plug, the groove being connected.
Described projection is square column, and described groove is square groove.
Angle between the axle center of described roller and the axle center of plug is 5～10 °.
Described roller is provided with 3～4.
Described plug is the cylinder with certain conicity, and described roller is identical with the conicity of plug.
Compared with prior art, the invention have the advantages that
(1) electric tube expander is connected by connecting rod by the present invention with the plug of tube expander, it is possible to use open at front tube sheet
Wealthy space, has reached to transfer power to from electric tube expander the purpose of tube expander in small space, and reliability is high；
(2) small space at little smoke-box need not arrange the electric tube expander that volume is bigger, provides cost savings.
Accompanying drawing explanation
Fig. 1 is the structural representation of boiler；
Fig. 2 is the structural representation of electric tube expander of the present invention；
Fig. 3 is the structural representation of connecting rod of the present invention；
Fig. 4 is the structural representation of tube expander of the present invention.
In figure shown in label: 1, electric tube expander, 2, boiler, 3, boiler front tube sheet, 4, little smoke chamber pipe plate, 5,
Smoke pipe, 6, connecting rod, 7, tube expander.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the technology of the present invention side
Implement premised on case, give detailed embodiment and concrete operating process, but the protection model of the present invention
Enclose and be not limited to following embodiment.
As Figure 1-Figure 4, the present embodiment provides the boiler pipe-expanding device of a kind of applicable small space, boiler 2
The boiler front tube sheet 3 including smoke pipe 5 and being located at smoke pipe 5 two ends and little smoke chamber pipe plate 4, boiler pipe-expanding device bag
Including electric tube expander 1, tube expander 7 and connecting rod 6, electric tube expander 1 is connected with tube expander 7 by connecting rod 6, connects
Bar and tube expander are directed at little smoke chamber pipe plate and the junction of smoke pipe through smoke pipe, tube expander, and electric tube expander passes through connecting rod
Transmit power to tube expander, make little smoke chamber pipe plate and smoke pipe expanded joint.
The principle of tube expansion be utilize the elastic deformation of tube sheet and pipe be plastically deformed tension force, it is ensured that tube sheet
Connection with pipe can bear boiler internal pressure and non-leakage.Tube expander 7 includes plug 71, outside plug 71
It is arranged with 3～4 rollers 72 contrary with plug 71 rotation direction, plug 71 one end and connecting rod 6 clamping,
The other end is directed at little smoke chamber pipe plate 4 and the junction of smoke pipe 5, is provided with between the axle center of roller 72 and the axle center of plug
One angle, is 5～10 °.Plug 71 is the cylinder with certain conicity, roller 72 and the circular cone of plug 71
Spend identical.Plug rotates under the effect of mechanical force, owing to there is certain angle in roller axle center and plug axle center,
Along with the rotation of plug, tube expander external diameter can constantly expand, and plays the effect of tube expansion.
Connecting rod 6 includes connecting rod body, and this connecting rod body one end is provided with mates, with electric tube expander, the projection being connected,
The other end is provided with and mates, with plug, the groove being connected, and wherein, projection is square column, and groove is square groove,
Dynamic transmission is carried out, it is ensured that the stable delivery of plug moving process medium power by square column and square groove.
As Figure 1-Figure 4, in boiler 2, smoke pipe 5 is whole with the connection of front tube sheet 3 and little smoke chamber pipe plate 4
Use tube expansion mode, wherein, smoke pipe 5 and boiler front tube sheet 3 junction, i.e. expanded joint at F uses electric tube expander 1
The mode being directly connected to tube expander 7 carries out tube expansion, is carrying out little smoke chamber pipe plate 4 and smoke pipe 5 junction, i.e. G
During the expanded joint of the small spaces such as place, electric tube expander junction A is connected with connecting rod junction B, connecting rod junction
C is connected with tube expander junction D, and the junction being directed at little smoke chamber pipe plate and smoke pipe at the E of tube expander carries out swollen
Pipe, thus avoid and electric tube expander is set in little smoke-box.
Claims (7)
1. a boiler pipe-expanding device for applicable small space, described boiler includes smoke pipe and is located at smoke pipe two ends
Boiler front tube sheet and little smoke chamber pipe plate, it is characterised in that described boiler pipe-expanding device includes electric tube expander, tube expander
And connecting rod, described electric tube expander is connected with tube expander by connecting rod, and described connecting rod and tube expander pass smoke pipe,
Described tube expander is directed at little smoke chamber pipe plate and the junction of smoke pipe, and electric tube expander is dynamic to tube expander transmission by connecting rod
Power, makes little smoke chamber pipe plate and smoke pipe expanded joint.
The boiler pipe-expanding device of applicable small space the most according to claim 1, it is characterised in that described
Tube expander includes that plug, described mandrel outer are arranged with multiple roller contrary with plug rotation direction, described plug one
End and connecting rod clamping, the other end is directed at little smoke chamber pipe plate and the junction of smoke pipe, the axle center of described roller and plug
Axle center between be provided with an angle.
The boiler pipe-expanding device of applicable small space the most according to claim 2, it is characterised in that described
Connecting rod includes connecting rod body, and this connecting rod body one end is provided with mates the projection being connected, the other end with electric tube expander
It is provided with and mates, with plug, the groove being connected.
The boiler pipe-expanding device of applicable small space the most according to claim 3, it is characterised in that described
Projection is square column, and described groove is square groove.
The boiler pipe-expanding device of applicable small space the most according to claim 2, it is characterised in that described
Angle between the axle center of roller and the axle center of plug is 5～10 °.
The boiler pipe-expanding device of applicable small space the most according to claim 2, it is characterised in that described
Roller is provided with 3～4.
7. according to the boiler pipe-expanding device of the applicable small space described in claim 2 or 5, it is characterised in that
Described plug is the cylinder with certain conicity, and described roller is identical with the conicity of plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176678.XA CN106141000A (en) | 2015-04-14 | 2015-04-14 | A kind of boiler pipe-expanding device of applicable small space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176678.XA CN106141000A (en) | 2015-04-14 | 2015-04-14 | A kind of boiler pipe-expanding device of applicable small space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106141000A true CN106141000A (en) | 2016-11-23 |
Family
ID=57336519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510176678.XA Pending CN106141000A (en) | 2015-04-14 | 2015-04-14 | A kind of boiler pipe-expanding device of applicable small space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106141000A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595103A (en) * | 2019-10-30 | 2019-12-20 | 远大空调有限公司 | High-temperature generator tube plate structure for lithium bromide cold-warm water unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2835308A (en) * | 1953-07-28 | 1958-05-20 | Walter E Stary | Tube expanding tool having rollers confined in cage slots and inclined within range of one-fourth to two-thirds of one degree |
| FR2220326A1 (en) * | 1972-11-01 | 1974-10-04 | Westinghouse Electric Corp | |
| CN101927300A (en) * | 2010-06-30 | 2010-12-29 | 东洋热交换器(中山)有限公司 | Combined expansion rod |
| CN201720350U (en) * | 2010-05-05 | 2011-01-26 | 杭州赛富特设备有限公司 | Improved structure of tube expander |
| CN204100219U (en) * | 2014-08-21 | 2015-01-14 | 中国石油化工集团公司 | Fire tube boiler smoke pipe maintain and replace specific purpose tool |
| CN204584081U (en) * | 2015-04-14 | 2015-08-26 | 上海工业锅炉有限公司 | Be applicable to the boiler pipe-expanding device of small space |
-
2015
- 2015-04-14 CN CN201510176678.XA patent/CN106141000A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2835308A (en) * | 1953-07-28 | 1958-05-20 | Walter E Stary | Tube expanding tool having rollers confined in cage slots and inclined within range of one-fourth to two-thirds of one degree |
| FR2220326A1 (en) * | 1972-11-01 | 1974-10-04 | Westinghouse Electric Corp | |
| CN201720350U (en) * | 2010-05-05 | 2011-01-26 | 杭州赛富特设备有限公司 | Improved structure of tube expander |
| CN101927300A (en) * | 2010-06-30 | 2010-12-29 | 东洋热交换器(中山)有限公司 | Combined expansion rod |
| CN204100219U (en) * | 2014-08-21 | 2015-01-14 | 中国石油化工集团公司 | Fire tube boiler smoke pipe maintain and replace specific purpose tool |
| CN204584081U (en) * | 2015-04-14 | 2015-08-26 | 上海工业锅炉有限公司 | Be applicable to the boiler pipe-expanding device of small space |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595103A (en) * | 2019-10-30 | 2019-12-20 | 远大空调有限公司 | High-temperature generator tube plate structure for lithium bromide cold-warm water unit |
| CN110595103B (en) * | 2019-10-30 | 2021-08-31 | 远大空调有限公司 | High-temperature generator tube plate structure for lithium bromide cold-warm water unit |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |
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| RJ01 | Rejection of invention patent application after publication |