CN102921821A - High-pressure liquid tube expanding device for fin arrangement - Google Patents
High-pressure liquid tube expanding device for fin arrangement Download PDFInfo
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- CN102921821A CN102921821A CN2012104315919A CN201210431591A CN102921821A CN 102921821 A CN102921821 A CN 102921821A CN 2012104315919 A CN2012104315919 A CN 2012104315919A CN 201210431591 A CN201210431591 A CN 201210431591A CN 102921821 A CN102921821 A CN 102921821A
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Abstract
The invention discloses a high-pressure liquid tube expanding device for fin arrangement. The device comprises a hydraulic pump, a high-pressure hose, a pipe switch, an overflow valve, a pressure gage, a joint, a seal pressure head and a base, wherein one end of the high-pressure hose is connected with the hydraulic pump, and the other end of the high-pressure hose is connected with the joint; the pipe switch, the overflow valve and the pressure gage are sequentially arranged between the hydraulic pump and the joint on the high-pressure hose; a through hole is opened in the center of the joint, and a thread is arranged at one end of the through hole which is in a threaded seal connection with the high-pressure hose through the thread; one end of the joint is fixed on the base, the other end is provided with a concave inner cavity, a groove is arranged in the concave inner cavity, and a seal ring is placed in the groove; a through hole is arranged in the center of the seal pressure head, and a fluted tube penetrates through the through hole and is fastened with the seal pressure head through a brazing mode; and the seal pressure head is arranged in the concave inner cavity of the joint, preferably, the seal pressure head is fixed on the joint. According to the device, the fluted tube is sealed, pressure control is achieved for hydraulic expansion forming, and the device is simple in structure, easy to achieve, and convenient and reliable in operate.
Description
Technical field
The present invention relates to the hydraulic expanding tube technical field, specifically relate to a kind of easy high pressure pipe-expanding device, be used for the clamping of fin fluted tube, fixing, sealing and swollen type.
Background technology
Along with petrochemical industry, the develop rapidly of the industries such as electric power, thus so that pipe shell type heat exchange equipment has more widely application, the tube bank of this class heat exchange equipment is to be formed by connecting by many heat transfer tube-to-tube sheet connections.What China mainly used at present is the mechanical expanding method of attachment.Mechanical expanding is owing to being subject to the restriction of caliber and tube expander length, it is higher that the total length of the expanded joint degree of depth and expand tube is difficult for slip too large and the mechanical expanding pipe end, the quality of expanded joint quality determines by human factor fully, requires very high and manipulation strength is large to operative employee's technical ability aspect.Hydraulic expanding tube is to utilize hydraulic pressure to be the expansion tube method of power, namely makes tube wall produce static uniform internal pressure so that tube wall deforms by perfusion highly pressurised liquid in sleeve pipe, and can recover distortion under the effect of fluid fatigue load.The relative mechanical expanding of hydraulic expanding tube, its expanded joint stress equilibrium, expanded joint length is large, the expanded joint caliber size is large, high efficiency, and expanded joint is stable, and process yield is high.And the difficulty of hydraulic expanding tube is the process of expand tube, must the good seal pipe, and do not allow liquid that leakage is arranged, also to control the pressure size of expanded joint simultaneously well.Therefore proposing a kind of simple and easy reliable highly pressurised liquid pipe-expanding device seems significant.
Summary of the invention
Purpose of the present invention just is to overcome the shortcoming of prior art, proposes a kind of leak of liquid that do not have, and the good fin of pressure control is installed and used the highly pressurised liquid pipe-expanding device.
The present invention is with highly pressurised liquid and fluted tube sealing, and utilization passes into highly pressurised liquid swells fluted tube, and its surface closely is connected with fin, and it is simple in structure, is easy to realize convenient and reliable operation.The present invention utilizes the sealing pressure head that sealing ring is pushed, and makes it produce strain, with pipe interior environment and external environment isolation; And by regulation relief valve, stablize certain pressure, swollen type result is controlled.
The purpose of patent of the present invention is achieved through the following technical solutions:
A kind of fin is installed and is used the highly pressurised liquid pipe-expanding device, comprises hydraulic pump, high-pressure rubber pipe, pipe switch, overflow valve, Pressure gauge, joint, sealing pressure head and base; High-pressure rubber pipe one end connecting fluid press pump, the other end is connected with joint; Be provided with successively pipe switch, overflow valve and Pressure gauge on the high-pressure rubber pipe between from the hydraulic pump to the joint; The joint center has through hole, and an end of through hole is provided with screw thread, is connected with high-pressure rubber pipe 2 thread seals by this screw thread; One end of joint is fixed on the base, and the other end is provided with the spill inner chamber, is provided with groove at the spill inner chamber, and groove is placed sealing ring;
Sealing pressure head center is provided with through hole, passes fluted tube in the through hole, and the employing brazing mode will seal pressure head and fluted tube is fastening, realizes seamless link; Clear size of opening is determined according to the fluted tube caliber; The sealing pressure head is arranged in the spill inner chamber of joint, and the envelope pressure head is fastened on the joint.
For further realizing the object of the invention, an end of joint wants the candidate to be fixed on the base by bolt-connection.
The sealing pressure head preferably by screw fastening on joint.
The through-hole diameter of sealing pressure head equals the fluted tube external diameter.
Groove is the annulus groove; The dimensional parameters of groove can be regulated according to demand.
The present invention seal pressure head by screw fastening on joint, its center is got through the hole and is matched with fluted tube, and adopts brazing mode seal pressure head and fluted tube is fastening, the realization seamless link.Clear size of opening is determined according to the fluted tube caliber.
Described base is used for anchor tip and band fin fluted tube, prevents that simultaneously unexpected fluted tube from flying out, and has certain protective role.
Described joint inner chamber groove dimensions parameter can be regulated according to demand, has certain flexibility.
Advantage of the present invention and good effect:
(1) a kind of fin is installed and with the highly pressurised liquid pipe-expanding device fluted tube is sealed, and utilizes highly pressurised liquid to make fluted tube expanded joint fin, and it is simple in structure, is easy to realize convenient and reliable operation.
(2) the present invention adopts brazing mode will seal pressure head to be connected with fluted tube, firm and reliable connection, and good airproof performance is easily realized.Its clear size of opening is determined according to the fluted tube caliber, can realize the expanded joint of different tube diameters fluted tube, has certain flexibility.
Description of drawings
Fig. 1 is the three-dimensional structure schematic diagram of apparatus of the present invention embodiment;
Fig. 2 is band fin fluted tube and fluid pressure line Connection Element explosive view;
Fig. 3 is joint design schematic diagram of the present invention.
The specific embodiment
For more understanding the present invention, the present invention is further illustrated below in conjunction with accompanying drawing, but embodiments of the present invention are not limit so.
As shown in Figure 1, 2, a kind of fin is installed and is used the highly pressurised liquid pipe-expanding device, comprises hydraulic pump 1, high-pressure rubber pipe 2, pipe switch 3, overflow valve 4, Pressure gauge 5, joint 6, sealing pressure head 7 and base 8; High-pressure rubber pipe 2 one end connecting fluid press pumps 1, the other end is connected with joint 6; Be provided with successively pipe switch 3, overflow valve 4 and Pressure gauge 5 on the high-pressure rubber pipe 2 from hydraulic pump 1 to joint 6; As shown in Figure 3, joint 6 centers have through hole, and an end of through hole is provided with screw thread, are connected with high-pressure rubber pipe 2 thread seals by this screw thread; One end of joint 6 is fixed on the base 8 by bolt-connection, and the other end is provided with the spill inner chamber, cooperates with sealing pressure head 7, is provided with groove 12 at the spill inner chamber, and groove 12 is placed sealing ring 11.
Sealing pressure head 7 centers are provided with through hole, pass fluted tube 10 in the through hole, and the through-hole diameter that preferably seals pressure head 7 equals the external diameter of fluted tube 10, adopts brazing mode will seal pressure head 7 fastening with fluted tube 10, realizes seamless link; Clear size of opening is determined according to the fluted tube caliber; The sealing pressure head 7 be arranged in the spill inner chamber of joint 6, by screw fastening on joint 6; Utilize 7 pairs of sealing rings 11 of sealing pressure head to push, make it produce strain, with pipe interior environment and external environment isolation.
Base 8 is used for anchor tip 6 and the fluted tube 10 of placing with fin 9, prevents that simultaneously the fluted tube accident from flying out, and has certain protective role.
Groove 12 is preferably annulus groove 12; The dimensional parameters of groove 12 can be regulated according to demand, has certain flexibility.
The present invention stablizes certain pressure by regulation relief valve 4, and swollen type result is controlled.
The course of work of apparatus of the present invention is as follows: manually fin 9 is penetrated fluted tube 10, at fluted tube 10 openings one end, utilize brazing mode will seal pressure head 7 and closely be connected with fluted tube, the station of then packing into, and will seal sealing ring 11 on pressure head 7 pressed joints 6 by the screw fastening effect; Primer fluid press pump 1, opening conduits switch 3, regulation relief valve 4 are to certain pressure, and Pressure gauge 5 shows pressure parameter, keeps 30-60s, and hydraulic expanding type is complete, and whole process is finished in dismounting.
The present invention utilizes fin to install and with the highly pressurised liquid pipe-expanding device fluted tube is sealed, and utilizes highly pressurised liquid to make fluted tube expanded joint fin, and it is simple in structure, is easy to realize convenient and reliable operation.
The present invention adopts brazing mode will seal pressure head to be connected with fluted tube, firm and reliable connection, and good airproof performance is easily realized.
The present invention seals the clear size of opening of pressure head 7 and determines according to the fluted tube caliber, can realize the expanded joint of different tube diameters fluted tube, has good flexibility.
In apparatus of the present invention, by the high-pressure rubber pipe conveying high-pressure liquid that is connected with hydraulic pump, be connected by gas thread between pipeline and each element, connected mode is not firmly, reliably, leak; Between sealing pressure head and joint contact surfaces, add sealing ring, utilize the sealing ring plastic deformation to prevent leak of liquid, simple in structure, reliable.
Claims (5)
1. a fin is installed and is used the highly pressurised liquid pipe-expanding device, it is characterized in that, comprises hydraulic pump, high-pressure rubber pipe, pipe switch, overflow valve, Pressure gauge, joint, sealing pressure head and base; High-pressure rubber pipe one end connecting fluid press pump, the other end is connected with joint; Be provided with successively pipe switch, overflow valve and Pressure gauge on the high-pressure rubber pipe between from the hydraulic pump to the joint; The joint center has through hole, and an end of through hole is provided with screw thread, is connected with the high-pressure rubber pipe thread seal by this screw thread; One end of joint is fixed on the base, and the other end is provided with the spill inner chamber, is provided with groove at the spill inner chamber, and groove is placed sealing ring;
Sealing pressure head center is provided with through hole, passes fluted tube in the through hole, and the employing brazing mode will seal pressure head and fluted tube is fastening, realizes seamless link; Clear size of opening is determined according to the fluted tube caliber; The sealing pressure head is arranged in the spill inner chamber of joint, and the envelope pressure head is fastened on the joint.
2. fin according to claim 1 is installed and is used the highly pressurised liquid pipe-expanding device, and it is characterized in that: an end of joint is fixed on the base by bolt-connection.
3. fin according to claim 1 is installed and use the highly pressurised liquid pipe-expanding device, it is characterized in that: seal pressure head by screw fastening on joint.
4. fin according to claim 1 is installed and used the highly pressurised liquid pipe-expanding device, it is characterized in that: the through-hole diameter of sealing pressure head equals the fluted tube external diameter.
5. a kind of fin according to claim 1 is installed and is used the highly pressurised liquid pipe-expanding device, and it is characterized in that: groove is the annulus groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104315919A CN102921821A (en) | 2012-10-31 | 2012-10-31 | High-pressure liquid tube expanding device for fin arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104315919A CN102921821A (en) | 2012-10-31 | 2012-10-31 | High-pressure liquid tube expanding device for fin arrangement |
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| Publication Number | Publication Date |
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| CN102921821A true CN102921821A (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104315919A Pending CN102921821A (en) | 2012-10-31 | 2012-10-31 | High-pressure liquid tube expanding device for fin arrangement |
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| CN (1) | CN102921821A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106552833A (en) * | 2017-01-14 | 2017-04-05 | 合肥太通制冷科技有限公司 | A kind of water rises the automatic screening hydraulic tube expansion device of vaporizer |
| CN111289369A (en) * | 2018-12-07 | 2020-06-16 | 金国达科技（湖南）有限公司 | Pipe expansion and pressure-resistant sealing detection device of surface cooler |
| CN115815436A (en) * | 2022-12-12 | 2023-03-21 | 北京理工大学珠海学院 | Pipe expanding device for improving production efficiency |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166129A (en) * | 1984-02-08 | 1985-08-29 | Mitsubishi Heavy Ind Ltd | Manufacture of finned heat transmitting tube |
| JPH067873A (en) * | 1992-06-15 | 1994-01-18 | Hitachi Cable Ltd | Manufacture of heat exchanger |
| JPH06328173A (en) * | 1993-05-18 | 1994-11-29 | Hitachi Ltd | Device and method for hydraulic tube expansion for heat exchanger |
| CN1186222A (en) * | 1996-12-23 | 1998-07-01 | 运载器有限公司 | Method for constructing heat exchangers using fluide expansion |
| CN102059296A (en) * | 2010-10-26 | 2011-05-18 | 华南理工大学 | Expanded joint method and device for high-pressure gas tube sheets |
| CN102641961A (en) * | 2012-03-31 | 2012-08-22 | 广东美的电器股份有限公司 | Hydraulic tube expanding device and tube expanding method for heat exchanger |
| CN202877408U (en) * | 2012-10-31 | 2013-04-17 | 华南理工大学 | Simple high pressure liquid expanding tube device |
-
2012
- 2012-10-31 CN CN2012104315919A patent/CN102921821A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166129A (en) * | 1984-02-08 | 1985-08-29 | Mitsubishi Heavy Ind Ltd | Manufacture of finned heat transmitting tube |
| JPH067873A (en) * | 1992-06-15 | 1994-01-18 | Hitachi Cable Ltd | Manufacture of heat exchanger |
| JPH06328173A (en) * | 1993-05-18 | 1994-11-29 | Hitachi Ltd | Device and method for hydraulic tube expansion for heat exchanger |
| CN1186222A (en) * | 1996-12-23 | 1998-07-01 | 运载器有限公司 | Method for constructing heat exchangers using fluide expansion |
| CN102059296A (en) * | 2010-10-26 | 2011-05-18 | 华南理工大学 | Expanded joint method and device for high-pressure gas tube sheets |
| CN102641961A (en) * | 2012-03-31 | 2012-08-22 | 广东美的电器股份有限公司 | Hydraulic tube expanding device and tube expanding method for heat exchanger |
| CN202877408U (en) * | 2012-10-31 | 2013-04-17 | 华南理工大学 | Simple high pressure liquid expanding tube device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106552833A (en) * | 2017-01-14 | 2017-04-05 | 合肥太通制冷科技有限公司 | A kind of water rises the automatic screening hydraulic tube expansion device of vaporizer |
| CN111289369A (en) * | 2018-12-07 | 2020-06-16 | 金国达科技（湖南）有限公司 | Pipe expansion and pressure-resistant sealing detection device of surface cooler |
| CN115815436A (en) * | 2022-12-12 | 2023-03-21 | 北京理工大学珠海学院 | Pipe expanding device for improving production efficiency |
| CN115815436B (en) * | 2022-12-12 | 2023-06-09 | 北京理工大学珠海学院 | Pipe expanding device capable of improving production efficiency |
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Application publication date: 20130213 |