CN1343866A - Wound and corrugated spiral heat-exchange tube - Google Patents
Wound and corrugated spiral heat-exchange tube Download PDFInfo
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- CN1343866A CN1343866A CN 00124550 CN00124550A CN1343866A CN 1343866 A CN1343866 A CN 1343866A CN 00124550 CN00124550 CN 00124550 CN 00124550 A CN00124550 A CN 00124550A CN 1343866 A CN1343866 A CN 1343866A
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- tube
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- spiral heat
- exchange tube
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Abstract
A wound and corrugated spiral heat-exchange pipe is composed of corrugated thin-wall spiral pipe, end sleeve pipe, wound metal wire, and fixed barrier sleeve. Its advantages include forced heat exchange by cyclone disturbance, transverse disturbance and surface extension, high pressure bearing power, low flow resistance and heat resistor, small thermal stress, and anti-scaling performance.
Description
The present invention relates to a kind of high efficient heat exchanging element that is used for diabatic process, particularly make basic tube and tube twine wire outward and paste the double-side efficient heat exchanger tube that is incorporated in tube wall generation helical corrugation by expanded joint in managing.
Thin-walled ripple/node heat exchanger tube is because effects such as its laterally turbulent flow reinforced and extended surface reinforcement have augmentation of heat transfer effect preferably.Simultaneously, because the good scalability of its thin-walled ripple, it is little and from characteristics such as scale removal or good antiscale property that thin-walled ripple/node heat exchanger tube also has thermal stress.Thin-walled ripple/node heat exchanger tube has obtained promoting in industries such as heat supply, thermoelectricity, be mainly used in the heat exchange of media such as water-water, water-vapour, but its resistance drop is excessive, pressure-bearing is low and problem such as security, obstacle its application in having industries such as the oil refining of great market, chemical industry.Helically twisted ellipse type section heat exchange pipe has stronger eddy flow disturbance augmentation of heat transfer effect, particularly the heat exchange for resisting medium that is difficult to conduct heat (as oils) etc. has outstanding augmentation of heat transfer effect and slight drag degradation characteristics, but owing to compare its tube wall thicker (conventional heat exchanger tube wall thickness) with light-wall pipe, under the occasion of the inside and outside coefficient of heat transfer of pipe big (as water-water heat exchange etc.), its tube wall heat conduction thermal resistance is bigger, and strengthening effect is remarkable not as thin-walled ripple/node heat exchanger tube.Thin-walled helical corrugation (node) heat exchanger tube is because its thin-walled ripple and pressure eddy flow have the comprehensive good characteristic that thin-walled ripple/node heat exchanger tube and helically twisted ellipse type section heat exchange pipe are had simultaneously.But under the on-circular cross-section condition, the bearing capacity of light-wall pipe will further obviously reduce.Therefore, do not have the thin-walled ripple/node heat exchanger tube of measures such as reinforcement, particularly have the multi-head spiral corrugated tube of good swirling flow characteristic, because the lower cause of bearing capacity, its actual application value is very limited.
The corrugated spiral heat-exchange tube that the purpose of this invention is to provide the outer wrapping wire of a kind of pipe, be the improvement of existing thin-walled helical corrugation/node heat exchanger tube, both improved its bearing capacity, widened its range of application by measures such as wrapping wires outside pipe, and simplified manufacturing process, improved working (machining) efficiency.
The object of the present invention is achieved like this:
(1) wire of certain specification is wrapped in by certain pitch or the spring-like wire is enclosed within and have on the good plasticity thin-wall metal base pipe, make it when fitting tightly by expanded joint parent tube, on the parent tube tube wall, produce helical corrugation with the outer winding of pipe wire.Because the winding effect wiry that pipe is outer, the bearing capacity of thin-walled corrugated spiral heat-exchange tube is improved, and its bearing capacity generally is higher than the thin-walled ripple/node heat exchanger tube of same specification.
(2) support deflector causes the thin-walled corrugated spiral heat-exchange tube to colliding with of light-wall pipe inefficacy in order to reduce to twine owing to pipe is outer between part wiry loosening or damage and pipe, outside the thin-walled parent tube also whenever by certain apart from suit one sleeve pipe (fixedly interstage sleeve), to improve its reliability.Fixedly interstage sleeve is connected with winding wire, thin-walled parent tube by methods such as expanded joints.
(3) in order to guarantee the bonding strength of thin-wall metal base pipe and tube sheet, each suit one sleeve pipe at the parent tube two ends, and by expanded joint, expanded joint+methods such as welding, it is firm tight that it is engaged.
The present invention compared with prior art has the following advantages.
(1) Wound and corrugated spiral heat-exchange tube is compared with thin-walled ripple/node heat exchanger tube because measures such as wire are twined in the outer employing of pipe, makes it have higher bearing capacity and security reliability, uses more extensive.
(2) Wound and corrugated spiral heat-exchange tube can be by managing the interior formation helical corrugations such as winding position-limiting action wiry that squeeze outside bloated and the pipe, need complicated mould with the moulding of thin-walled ripple/node heat exchanger tube and compare than accurate in locating, its manufacturing process is easier, and efficient is higher.
(3) Wound and corrugated spiral heat-exchange tube is compared with ripple/node heat exchanger tube, thereby is had better augmentation of heat transfer effect owing to rotation disturbance in its stronger pipe, and flow resistance is less in the pipe.
Concrete structure of the present invention is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of Wound and corrugated spiral heat-exchange tube.Among the figure, 1 is spiral thin-walled ripple parent tube, and 2 is the end sleeve pipe, and 3 for twining wire, and 4 are fixing interstage sleeve.
See Fig. 1, concrete structure of the present invention can further specify as follows:
A number of the helical corrugation of Wound and corrugated spiral heat-exchange tube (also wiry number of the i.e. outer winding of pipe) can also can be bull for single head, can be for single rotation direction (left side or right) also can be double rotational directions (left side and right), recommending to select a number for use is single rotation direction helical corrugation of 2-4 head.Wrapping wire is close in the groove of helical corrugation outer wall, bears the part working stress, to improve the bearing capacity of corrugated spiral heat-exchange tube.
Other cross sectional shape that the ripple of Wound and corrugated spiral heat-exchange tube can gradually be put for triangle, rectangle, trapezoidal, circular arc, camber line shape and convergent recommends to select for use circular arc or camber line shape.
Fixedly the main effect of interstage sleeve be fixing twine wire and prevent to manage between support deflector causes the thin-walled corrugated spiral heat-exchange tube to colliding with of light-wall pipe inefficacy.Fixedly the spacing of interstage sleeve can be determined as required, is generally the deflection plate/distance between tie rods of heat exchanger tube.Fixedly interstage sleeve can also can be hydraulically smooth surface for the ripple wall.
The two ends that the end sleeve pipe is connected with tube sheet are circular smooth cross section, and the end sleeve pipe can be connected with parent tube by expanded joint (comprising the flange expanded joint), expanded joint+welding or welding.Expanded joint or expanded joint+welding manner are used in the connected mode suggestion of end sleeve pipe and parent tube.The end sleeve pipe can be accepted or rejected according to heat exchanger tube and tube sheet ways of connecting and requirement.
Claims (6)
1, Wound and corrugated spiral heat-exchange tube by spiral thin-walled ripple parent tube 1, end sleeve pipe 2, twine wire 3 and fixedly interstage sleeve 4 form, it is characterized in that the thin-walled parent tube produces plastic deformation and twines the wire applying with pipe is outer by expanded joint, and on the parent tube wall, form helical corrugation.
2, according to the described Wound and corrugated spiral heat-exchange tube of claim 1, it is characterized in that other cross sectional shape that the ripple of thin-walled parent tube can gradually be put for triangle, rectangle, trapezoidal, circular arc, camber line shape and convergent, recommend to select for use circular arc or camber line shape.
3, according to the described Wound and corrugated spiral heat-exchange tube of claim 1, a number that it is characterized in that the helical corrugation of thin-walled parent tube can also can be bull for single head, can be for single rotation direction also can be double rotational directions, recommending to select a number for use is single rotation direction helical corrugation of 2-4 head.
4, according to the described Wound and corrugated spiral heat-exchange tube of claim 1, it is characterized in that the outer wrapping wire of pipe of thin-walled parent tube is close in the groove of helical corrugation outer wall, bear the part working stress, to improve the bearing capacity of corrugated spiral heat-exchange tube.
5,, it is characterized in that fixedly interstage sleeve can also can be hydraulically smooth surface for the ripple wall according to the described Wound and corrugated spiral heat-exchange tube of claim 1; Fixedly the spacing of interstage sleeve can be determined as required, is generally the support deflector spacing of heat exchanger tube.
6,, it is characterized in that the end sleeve pipe can accept or reject as required according to the described Wound and corrugated spiral heat-exchange tube of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00124550 CN1343866A (en) | 2000-09-20 | 2000-09-20 | Wound and corrugated spiral heat-exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00124550 CN1343866A (en) | 2000-09-20 | 2000-09-20 | Wound and corrugated spiral heat-exchange tube |
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| Publication Number | Publication Date |
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| CN1343866A true CN1343866A (en) | 2002-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00124550 Pending CN1343866A (en) | 2000-09-20 | 2000-09-20 | Wound and corrugated spiral heat-exchange tube |
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| CN (1) | CN1343866A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660876B (en) * | 2008-08-29 | 2013-10-16 | 海宁伊满阁太阳能科技有限公司 | Vacuum thin wall heat exchange device with two contacted inner surfaces |
| CN104142088A (en) * | 2014-08-01 | 2014-11-12 | 张家港化工机械股份有限公司 | Supporting frame for tube bundle in special type heat exchanger |
| CN105571372A (en) * | 2016-02-22 | 2016-05-11 | 大震锅炉工业（昆山）有限公司 | Improved and strengthened heat transfer equipment |
| CN110757094A (en) * | 2019-10-31 | 2020-02-07 | 中航飞机起落架有限责任公司 | Turning method of cylindrical stepped thin-wall part |
| CN111272530A (en) * | 2018-12-05 | 2020-06-12 | 中广核工程有限公司 | Manufacturing method of coil pipe of nuclear power high-temperature sampling cooler |
-
2000
- 2000-09-20 CN CN 00124550 patent/CN1343866A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660876B (en) * | 2008-08-29 | 2013-10-16 | 海宁伊满阁太阳能科技有限公司 | Vacuum thin wall heat exchange device with two contacted inner surfaces |
| CN104142088A (en) * | 2014-08-01 | 2014-11-12 | 张家港化工机械股份有限公司 | Supporting frame for tube bundle in special type heat exchanger |
| CN105571372A (en) * | 2016-02-22 | 2016-05-11 | 大震锅炉工业（昆山）有限公司 | Improved and strengthened heat transfer equipment |
| CN111272530A (en) * | 2018-12-05 | 2020-06-12 | 中广核工程有限公司 | Manufacturing method of coil pipe of nuclear power high-temperature sampling cooler |
| CN110757094A (en) * | 2019-10-31 | 2020-02-07 | 中航飞机起落架有限责任公司 | Turning method of cylindrical stepped thin-wall part |
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