CN100570239C - Heat pipe type vortex tube - Google Patents
Heat pipe type vortex tube Download PDFInfo
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- CN100570239C CN100570239C CNB2008100112567A CN200810011256A CN100570239C CN 100570239 C CN100570239 C CN 100570239C CN B2008100112567 A CNB2008100112567 A CN B2008100112567A CN 200810011256 A CN200810011256 A CN 200810011256A CN 100570239 C CN100570239 C CN 100570239C
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Abstract
Heat pipe type vortex tube of the present invention belongs to pressed gas throttling step-down and cryogenic separation technical field.The hot-fluid outlet of heat pipe type vortex tube is laid downwards, around the outer gravity type heat pipe heat exchanger that increased of its pipe, utilize one section tube wall of vortex tube extension and hot-fluid outlet and overlap the envelope shell and surround one section external jacket, form the vaporization chamber of the cavity of ring section as heat pipe, the transpirable working medium of interior Sheng, the heat of vortex tube popular stock stream can be passed through the efficient heat transfer circulation of heat pipe, the wall that is delivered to the nozzle of vortex tube runner heats, and can prevent that the stifled phenomenon of ice of nozzle wall surface from taking place.The present invention can be used for the throttling step-down occasion that natural gas etc. contains the pressed gas of frozen composition, replace choke valve throttling step-down and can not produce freeze stifled, also can be used for the gas vortex tube refrigeration that oil gas etc. contains condensable heavy ends, the condensate liquid separating process is carried out in cold plume dry gas and the heat exchange of popular stock stream again.
Description
Technical field
The present invention relates to vortex tube energy separation and gravity type heat pipe heat exchanger mechanism, belong to pressed gas throttling step-down and cryogenic separation technical field.
Background technology
Vortex tube is that a kind of pressed gas that directly utilizes freezes, heats, and realizes the device that hot and cold amount is separated.It can be converted into kinetic energy with gas pressure earlier, by the energy exchange of the inside and outside layer of rotating vortex, is divided into the unequal hot and cold two strands of air-flows of total enthalpy again.Vortex tube generally is made up of to several tangential nozzles, vortex cavity, cool and heat ends outlet etc. inlet tube.During work, gases at high pressure flow into tangential nozzle through inlet tube, produce high velocity air, enter vortex cavity then.Under the moment of momentum that equates, vortex internal layer angular speed reaches skin by momentum-exchange with kinetic energy much larger than skin, and self enthalpy drop is low, and outer field enthalpy rises.From center and periphery gas is derived respectively, just can obtain hot and cold two strands of air-flows.Meanwhile, the pressure ratio of exit gas inlet has bigger reduction, is equivalent to have the throttling action of choke valve.
Traditional vortex tube has movement parts simple in structure, no, cost is low, flow is adjustable, easy to operate easy care, advantage such as safe and reliable to operation, many-sided function such as have refrigeration again, heat, separate, vacuumize.But the problem that exists is also a lot: (1) is stifled because of the too low ice that causes of temperature of nozzle throat High Velocity Area, is the main cause that is difficult to be generalized to high pressure gas occasion application in moisture minute.(2) the hot junction energy often can not get sufficient utilization.(3) efficient as refrigerator is not high.
When gases at high pressure pass through the choke valve step-down,,, freeze stifled because of cooling with regard to being easy to if contain higher composition of condensation point such as moisture etc. in the gas because of throttle effect is lowered the temperature.Therefore, in the exploitation such as natural gas and oil field gas and the process of carrying, before the throttling step-down, usually earlier must be with gases at high pressure with fuel oil or gas furnace heating, the investment of the equipment that not only wasted energy but also increased.
Summary of the invention
The purpose of this invention is to provide little, the full static structures of a kind of volume, at the antifreeze heat pipe type vortex tube that clear superiority is arranged aspect stifled of throttling step-down, simultaneously, it can also be applicable to the throttling step-down of band liquid gas well, and in refrigeration, carries out gas-liquid separation in the lump.
The principle of heat pipe type vortex tube of the present invention and its throttling step-down technology is: the high temperature that utilizes the generation of vortex tube hot-fluid end is provided with a gravity type heat pipe heat exchanger as thermal source.Its evaporator section is the hot junction of vortex tube, and condensation segment then is arranged on the periphery of nozzle flow channel wall.During vortex tube work, in some areas, tangential nozzle place, because of static temperature low excessively, cause in the air-flow condensation point higher composition to be freezed at wall, heat pipe then is delivered to nozzle wall surface with the heat that the vortex tube hot junction produces, make and freeze to melt or do not freeze, be implemented in not produce under the high-pressure ratio throttling situation and freeze stifled purpose.
Technical solution of the present invention is: heat pipe type vortex tube, by shell epimere 2, sealing baffle 3, inlet tube 4, nozzle flow channel dish 7, radial nozzles runner 8, capping 9 under the spray nozzle plate, shell hypomere 10, eddy current lumen 11, sewage draining exit 14, heat pipe evaporator section 20, communicating pipe 21, compositions such as vortex cavity 22 and cold orifice plate 25, it is characterized in that, having utilized vortex tube extension and hot-fluid outlet is the pipe outer wall of eddy current lumen 11, sealed into one section external jacket with heat pipe overcoat 12, the cavity of formation ring section is a heat pipe chamber 18 as the vaporization chamber of heat pipe, the transpirable working medium of interior Sheng, eddy current lumen 11 is laid downwards, the top of heat pipe chamber 18 is nozzle flow channel dishes 7, has to penetrate into spray nozzle plate upper surface cavity 23 communicating pipe 21 on nozzle flow channel dish 7.Enclose in the heat pipe chamber 18 is that vortex tube extension and hot-fluid outlet are the outer wall of eddy current lumen 11.Owing to density reduces to float, can directly contact after the working medium evaporation in the heat pipe chamber 18, under heat release condensation and the sticking wall flow, realize circulation with the lower surface of the flat dish-type element that is processed with radial nozzles runner and vortex cavity.In order to increase nozzle flow channel condensing heat-exchange area on every side, the present invention also adopts the method for perforate on the solid entity of nozzle flow channel element, the working medium of evaporation is directed to the upper surface of nozzle flow channel element and carries out condensation in the interior sidewall surface of perforate, the vaporization chamber of heat pipe below the working medium of upper surface condensation flow back into by perforate again.
The evaporation thermal source of working medium comes from the popular stock stream in vortex tube extension and the hot-fluid outlet in the heat pipe, and the heat of popular stock stream is to pass to working medium in the heat pipe chamber of external jacket ring section by the pipeline section tube wall.
Because the present invention is main application purpose with the throttling step-down, so remarkable critical expansion ratio of the general meeting of its pressure drop ratio greater than gas, so Laval superonic flow nozzzle that this vortex tube adopts mechanical power loss to try one's best little, runner divergent segment maximum secting area is greater than throat, make pressure can be converted into kinetic energy, to strengthen the intensity of antihypertensive effect and whirlpool as far as possible.Because whirlpool intensity is strong more, the hot-fluid temperature is high more, and the low temperature that therefore can heat superonic flow nozzzle more consumingly easily freezes stifled section.
Though heat pipe type vortex tube of the present invention is to carry out step-down with the principle of vortex tube, but the summation of high and low temperature fluid enthalpy equates with incoming flow, the mixed temperature of high and low temperature fluid still is the obtainable temperature of throttling step-down, therefore, easy to be dignified component in the gas just can adopt separator to separate after vortex tube, and its effect is identical with the choke valve throttling.Two plumes can also there be heat of mixing exchange, the lime set after the heat of dissociation plume turns cold again.Because the dividing potential drop of heavy ends is higher in the popular stock stream, adopts this kind technical process can isolate than the more heavy ends lime set of choke valve throttling step-down.
The beneficial effect that the present invention reached is: step-down smoothly under (1) high-pressure ratio, do not freeze stifled phenomenon; (2) can realize the separation of weight component.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a kind of schematic diagram of implementing structure of heat pipe type vortex tube of the present invention.
Fig. 2 be heat pipe type vortex tube of the present invention radial nozzles runner section and communicating pipe the location drawing.
Among the figure, 1, the cold air outlet flange, 2, the shell epimere, 3, sealing baffle, 4, inlet tube, 5, the high pressure gas inlet, 6, inlet flange, 7, the nozzle flow channel dish, 8, the radial nozzles runner, 9, capping under the spray nozzle plate, 10, the shell hypomere, 11, the eddy current lumen, 12, the heat pipe overcoat, 13, the working medium hand-hole, 14, sewage draining exit, 15, heat outlet is taken over, and 16, the heat outlet flange, 17, heat outlet, 18, heat pipe chamber, 19, aspirating hole, 20, heat pipe evaporator section, 21, communicating pipe, 22, vortex cavity, 23, spray nozzle plate upper surface cavity, 24, the air inlet cushion chamber, 25, cold orifice plate, 26, cold air outlet, 27, intercommunicating pore.
The specific embodiment
A kind of specific embodiments of heat pipe type vortex tube of the present invention is: shell is divided into two sections, adopts machined to add Welding Structure, epimere side welding inlet tube 4, and shell inside processes the location endoporus, is packed in interior core assembly location.Interior core assembly comprises capping 9 under cold orifice plate 25, sealing baffle 3, nozzle flow channel dish 7, communicating pipe 21, the spray nozzle plate, eddy current lumen 11, heat outlet adapter 15 and heat outlet flange 16.The various piece of assembly will be distinguished machined, and reliable welded seal is carried out in contraposition then, or adds the fluid sealant sealing with O type circle, so that isolated reliably sealing is realized with coming gas, cold and hot plume gas in all slits in each torus of heat pipe and loop.After interior core assembly welding or attaching are finished, again the insertion positioning section of cold orifice plate 25 and the cylindrical positioning section of heat outlet adapter 15 are machined to fit dimension with one heart.
Upper and lower half section soldering and sealing or connect behind the core assembly in assembling compresses of shell with flange, heat pipe overcoat 12 upper ends and lower house connect the jail, and the lower end endoporus cooperates soldering and sealing after the assembling and positioning with the cylindrical of heat outlet adapter 15.Heat pipe overcoat 12 need be opened three interfaces, and one is aspirating hole 19, can connect vavuum pump and extract the incoagulable gas that leaks from sealing in interior beginning of heat pipe or the work out, as process gas, air etc.; One is working medium hand-hole 13; The lowest part of lower semisection also is provided with sewage draining exit 14.
The symmetry of eddy current is considered in the vortex cavity, not only one and be symmetrical in circumference of ultrasonic radial nozzles runner 8.The radial nozzles runner 8 that the trim line that processes several certain depths is a convergent-divergent Laval nozzle shape is milled by the circumference symmetry in lower surface at nozzle flow channel dish 7, so that gas accelerates to the pairing supersonic speed of expansion ratio and reaches the purpose that step-down is reduced pressure.And intercommunicating pore 27 is used for inserting welding communicating pipe 21, so that evaporator man mass-energy enough rises to cavity above the nozzle, can flow down again after the condensation.
Operation principle: gases at high pressure enter in the air inlet cushion chamber 24 from high pressure gas inlet 5, enter radial nozzles runner 8 then, enter after the acceleration in the vortex cavity 22.Through energy exchange, cold thigh air-flow rises to cold air outlet 26 from the central outlet of vortex cavity 22, the popular stock air-flow then drops to heat outlet 17 along the 11 interior rotations of eddy current lumen, and with the heat transferred tube wall, evaporation rose to heat pipe evaporator section 20 after working medium in the heat pipe chamber 18 of eddy current lumen 11 outsides had absorbed the tube wall heat, part is run into the heat release condensation afterwards of nozzle flow channel base plate wall, along under the wall flow, remaining steam passes and enters communicating pipe 21 in the nozzle upper surface cavity 23, the condensed worker quality liquid of heat release again under the inwall of communicating pipe 21 to heat pipe evaporator section 20, recycle in the heat pipe chamber 18.The working medium evaporation that has absorbed eddy current lumen 11 tube wall heats is risen, and emits latent heat in condensation process, with the heating of nozzle flow channel wall body, just can eliminate in nozzle wall surface and freeze, and freezes stifled possibility.
Claims (5)
1. heat pipe type vortex tube, by shell epimere (2), sealing baffle (3), inlet tube (4), nozzle flow channel dish (7), radial nozzles runner (8), capping under the spray nozzle plate (9), shell hypomere (10), eddy current lumen (11), sewage draining exit (14), heat pipe evaporator section (20), communicating pipe (21), vortex cavity (22) and cold orifice plate (25) are formed, it is characterized in that, having utilized vortex tube extension and hot-fluid outlet is the pipe outer wall of eddy current lumen (11), sealed into one section external jacket with heat pipe overcoat (12), the cavity of formation ring section is heat pipe chamber (18) as the vaporization chamber of heat pipe, the transpirable working medium of interior Sheng, eddy current lumen (11) is laid downwards, the top of heat pipe chamber (18) is nozzle flow channel dish (7), has communicating pipe (21) to penetrate into spray nozzle plate upper surface cavity (23) on nozzle flow channel dish (7).
2. heat pipe type vortex tube according to claim 1 is characterized in that, enclosing in the heat pipe chamber (18) is that vortex tube extension and hot-fluid outlet are the outer wall of eddy current lumen (11).
3. heat pipe type vortex tube according to claim 1 is characterized in that, not only one and be symmetrical in circumference of the radial nozzles runner (8) on the nozzle flow channel dish (7).
4. heat pipe type vortex tube according to claim 1 is characterized in that, radial nozzles runner (8) adopts the Laval superonic flow nozzzle, and runner divergent segment maximum secting area is greater than throat.
5. heat pipe type vortex tube according to claim 1, it is characterized in that, capping (9) and eddy current lumen (11) under cold orifice plate (25), sealing baffle (3), nozzle flow channel dish (7), communicating pipe (21), the spray nozzle plate, all slits that each contraposition is installed, all carry out reliable welded seal, or add the fluid sealant sealing with O type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100112567A CN100570239C (en) | 2008-04-30 | 2008-04-30 | Heat pipe type vortex tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100112567A CN100570239C (en) | 2008-04-30 | 2008-04-30 | Heat pipe type vortex tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101270932A CN101270932A (en) | 2008-09-24 |
| CN100570239C true CN100570239C (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100112567A Active CN100570239C (en) | 2008-04-30 | 2008-04-30 | Heat pipe type vortex tube |
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| CN (1) | CN100570239C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937345B (en) * | 2012-11-13 | 2014-12-03 | 浙江大学 | Heat pump type vortex tube and heat exchange system with same |
| CN102937344B (en) * | 2012-11-13 | 2014-12-03 | 浙江大学 | Vortex tube with axial cold and heat switching mechanism and heat exchange system with same |
| CN102944080B (en) * | 2012-11-13 | 2014-12-03 | 浙江大学 | Vortex tube with tangential cold and hot switching function and heat exchanging system with same |
| CN104121716B (en) * | 2013-04-27 | 2016-10-12 | 中国石油化工股份有限公司 | Vortex tube |
| CN107806716A (en) * | 2017-09-24 | 2018-03-16 | 邵晓怡 | A kind of method for strengthening swirl control cold efficiency |
| CN113701384B (en) * | 2020-08-31 | 2022-11-01 | 中国科学院理化技术研究所 | Novel compression refrigerating system based on supersonic speed refrigerating effect |
| CN113701386B (en) * | 2021-04-07 | 2022-11-01 | 中国科学院理化技术研究所 | Supersonic speed two-phase expansion refrigeration system based on natural working medium |
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- 2008-04-30 CN CNB2008100112567A patent/CN100570239C/en active Active
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| CN101270932A (en) | 2008-09-24 |
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