CN101762110B - Mixed containing cavity heat dissipation gas wave refrigerating machine - Google Patents
Mixed containing cavity heat dissipation gas wave refrigerating machine Download PDFInfo
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- CN101762110B CN101762110B CN2010101075168A CN201010107516A CN101762110B CN 101762110 B CN101762110 B CN 101762110B CN 2010101075168 A CN2010101075168 A CN 2010101075168A CN 201010107516 A CN201010107516 A CN 201010107516A CN 101762110 B CN101762110 B CN 101762110B
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Abstract
The invention relates to a mixed containing cavity heat dissipation gas wave refrigerating machine, belonging to the field of gas expansion refrigeration low temperature technology, a pressure gas is jetted to a receiving pipe to generate kinematic waves to dissipate energy, thereby realizing refrigeration, the rotating speed is low and the operation is simple. The mixed containing cavity heat dissipation gas wave refrigerating machine is mainly composed of a machine body, a rotating jet flow distributor, a short receiving pipe, a receiving pipe cylinder, a mixed containing cavity and a heat exchanging unit and is characterized in that the end of the short receiving pipe is opened and is communicated with the mixed containing cavity, the heat exchanging unit is arranged in the mixed containing cavity, and the energy of a compression wave or a shock wave, which is transmitted to the mixed containing cavity from the short receiving pipe, is adsorbed by the heat exchanging unit. The heat dissipation and buffer structure that the mixed containing cavity is spliced by the short receiving pipe is adopted in the invention, therefore, the complete machine volume is small, the pipe can not be broken by vibration, the refrigeration efficiency is high, the changing fluctuation is little, the exhaust of refrigeration gas condensate is very convenient, and the transformed energy is easy to be recycled. The mixed containing cavity heat dissipation gas wave refrigerating machine can be widely used in the field of condensation separation of mixed gas, light dydrocarbon recycle in petroleum gas, low temperature dehydration of natural gas, low-temperature gas source supply and the like.
Description
Technical field
The invention belongs to pressed gas swell refrigeration technical field, be specifically related to a kind of gas refrigeration machinery, i.e. mixed containing cavity heat dissipation gas wave refrigerating machine.
Background technology
Swell refrigeration can obtain than with the lower low temperature of working medium circularly cooling.Utilize the pressure expansion refrigeration of gas self, in fields such as natural petroleum gas field processing, have using value.Except turbo-expander, heat separator and air wave refrigerating device (Chinese patent 87101903.5,89213744.4,90222999.0) etc. also belong to gas swell refrigeration machinery.This type refrigeration machine can be worked under lower rotating speed efficiently, thereby avoids as cryogenic turboexpander, must under high rotating speed, move and a series of inconvenience of bringing.Existing heat separator and air wave refrigerating device all are that pressed gas is done the unsteadiness expansion work to the retention gas in the adopter of each root endcapped successively, make pressure can be converted into heat energy, dispel the heat through tube wall again.Incident pressure gas has consumed the energy of self because of the acting of expanding, and temperature reduces and realizes freezing.
But traditional heat separator and air wave refrigerating device, for satisfying the needs that under the slow-speed of revolution, obtain the heat radiation of high efficiency and high load capacity, the length of its adopter all reaches several meters, not only makes machine volume huge, and vibration easily, regular meeting occur disconnected run affairs so; And because the terminal wall temperature of longer oscillating tube is lower, can not powerful dissipation energy, tubing function rate is low; Be because long adopter is the circular section again; The jet nozzle that causes certain flow (certain width); Rotate in the process of distributing jet, be difficult to cover full mouth of pipe width more than two simultaneously, then for each root adopter; Jet is not full of the time equal large percentage of the mouth of pipe, can entrainment the more mutual blending of gas in the multitube and reduces isentropity; Be exactly that compressional wave or shock wave can be got back to arrival end from the end reflection of pipe sealing in addition, heat gas fresh or that freezed, the reduction refrigerating efficiency, when the gas frequency of oscillation is inconsistent in jet frequency and the adopter more very; And even more serious be: when the gas of handling contained condensable heavy ends, the environment of adopter closed end zone lower temperature is lime set and can being detained very easily, and constantly accumulation finally causes the refrigeration machine inefficacy.Although invented some automatic draining devices, structure is comparatively complicated, implements and inconvenience.
Although the development of heat separator and air wave refrigerating device has the history in more than 30 year, be its notable feature with long adopter, but never change.The heat of long tube wall distributes among environment, though have do not need extra cooling heat transferring just, heat can not get reclaiming.And above-mentioned volume is big, problems such as big, the efficient fluctuation of equal ratio, hydrops when the disconnected pipe of vibration, jet blending, is then limit very difficult fundamentally solution by this structure.
Summary of the invention
The object of the invention overcomes above-mentioned deficiency exactly, and providing a kind of is non-permanent swell refrigeration machine---the mixed containing cavity heat dissipation gas wave refrigerating machine of characteristic by short adopter that needn't heat dissipation, common cavity volume heat-dissipating space, elastic buffer volume and the lime set liquid storage space that its end openings continued access connects.
Mixed containing cavity heat dissipation gas wave refrigerating machine of the present invention realizes that the principle of function is according to being: pulsing jet injects a pipeline section from an end mouth of pipe; The proal while of gas in promoting pipe; Because and the speed of the interior gas of pipe and pressure is poor; Can produce a series of compressional wave and pool shock wave, with the quick teletransmission of jet energy.The rotation of carried as side-arm fluidic distributor causes being interrupted of this pipeline section jet, and the energy and the speed of previous jet fully exhaust, and temperature reduces, and returns from the mouth of pipe more just to become refrigeration gas.In this process, the proal distance of jet forward face, the distance that propagate forward much smaller than the compressional wave that carries energy.Therefore, as long as the length of pipeline section is longer than the distance of going in face of the jet forward, just can guarantees jet dissipation of energy refrigeration and all return this end mouth of pipe of discharge.For long adopter, the front portion on the preceding sharp side of jet, compressional wave and shock wave are in the process of forward pass ripple; Delay gas in the heat intensive pipe; Pass to tube wall again and be dispersed in the environment, therefore the length dimension of long adopter more than 4/5 is all used for heat dissipation.Certainly long adopter can reduce the gas rigidity, is easy to absorb the energy of jet, but the cushion chamber of the big volume of adjunction can reach identical purpose too.
If heat can not fully dissipate away, just mean that the energy of shock wave or compressional wave does not have disappearance to exhaust, in limited space; Their always repeatedly reflections of warp from the Gu Bi border; Get back in the adopter, energy is passed to Gas Jet once more and made it backheat, refrigerating efficiency reduces.Can play or surpass the thermolysis of long adopter 4/5 above length if manage equally in the cavity volume that all each adopters of shock wave or its energy that can fully dissipate of compressional wave importing is all shared.Therefore, adopter is shortened to the distance of only being longer than row in face of the jet forward, needn't heat dissipation, and the common cavity volume that connects in continued access thereafter is as heat-dissipating space, enhance heat or heat-obtaining; And the rigidity that this common cavity volume can reduce short adopter greatly is a frequency of oscillation, with long adopter equivalence.These are principle foundations of the present invention, and experiment obtains checking through experimental machine, and its efficient is higher than the air wave refrigerating device of traditional long adopter heat radiation.
The present invention for realizing the technical solution that above-mentioned purpose is taked is: mixed containing cavity heat dissipation gas wave refrigerating machine; Mainly by the short adopter of rotatory sealing 9 in inlet chamber 6, air inlet pipe 7, the machine, main shaft 10, body 11, rotating jet distributor 14, many 16, adopter cylinder 17, cavity volume 20, heat exchange unit 21, cold air outlet chamber 24 and cold air outlet pipe 25 are formed altogether; Rotating jet distributor 14 makes jet snap to the mouth of pipe at the short adopter of each root 16 tops successively and get into to freeze in the pipe and returns discharge again; It is characterized in that: the non-jet inlet end of the short adopter 16 that circumference is arranged i.e. end also is an opening; And this end openings cavity volume 20 together is connected; Altogether in the cavity volume 20 heat exchange unit 21 is housed, heat exchange unit 21 absorbs the compressional wave that from short adopter 16, passes in the common cavity volume 20 or the energy of shock wave.
The cross section of described short adopter 16 is narrow fan type or shallow/deep groove type, and the mouth of pipe width of the short adopter 16 of so arranging by circumference is little, can reduce the time equal ratio that jet is not full of the mouth of pipe.
The length of adopter cylinder 17; Promptly the length of short adopter 16 is between 200～1800 millimeters; The radial height in short adopter 16 cross sections; The groove depth that is adopter cylinder 17 deducts the tent height, and between 2～100 millimeters scopes, the width in short adopter 16 cross sections is that groove width is between 1～50 millimeter; The width of long tent equates with groove width, long tent height between 1～40 millimeter, the equal in length of the groove that long tent length and adopter cylinder 17 upper surfaces process; The diameter of adopter cylinder 17 between 60～5000 millimeters scope, the fluting quantity of adopter cylinder 17 outer circumference surfaces, the quantity of promptly short adopter 16 is between 10～500.
The beneficial effect of mixed containing cavity heat dissipation gas wave refrigerating machine of the present invention is following:
1. shorten greatly and accept pipe range.Problems such as the machine volume of following long tube to bring is big, the disconnected pipe of vibration also just disappear thereupon.
2. in the cavity volume enhanced heat exchange structure can be installed altogether.This makes the energy of compressional wave or shock wave dissipate more easily; Can not reflect back in the jet refrigeration gas; Therefore refrigerating efficiency can obviously improve, and its efficient also greatly reduces with the situation of jet change of frequency fluctuation, no longer need be as common gas wave machine or heat separator; In servicely will regulate motor speed with frequency converter, keeping efficiently, the jet frequency is the rotating speed of jet dispenser nozzle.
3. the discharge of lime set becomes very simple.Because terminal all open communication of all adopters, are stored in the lime set volume of common cavity volume bottom so can rely on gravity that lime set is come together in together in a cavity volume altogether, regularly discharge.
4. reduced of the blending of adopter entrance jet with the interior gas of pipe.Because easily narrow fan-shaped or deep trouth tee section, the circumference more short adopter of arranging is adopted in processing; Make the jet nozzle of certain flow (certain width); Can cover the completely mouth of pipe of many adopters simultaneously, the time equal ratio that jet is not full of the mouth of pipe reduces, and entrainments the mutual blending amount minimizing of gas in the pipe; More be prone to form desirable gas piston contact interface, thereby improve the isentropity that shooting flow expanding flows.
5. the heat easy recovery is utilized.Because be to focus on one to be total to heat exchange in the cavity volume, therefore except air cooling, water-cooled or heat pipe etc. can be implemented, heated fluid can be drawn, and utilizes the heat of its absorption.
6. can under the slow-speed of revolution, efficiently move.The mouth of pipe of several narrow solid matter row makes dispenser nozzle switch under the situation of distributing jet in the slow-speed of revolution because jet nozzle can align simultaneously, and the degree of entrainmenting blending increases little; Also because the connection of cavity volume altogether; Greatly reduce the gas compression rigidity of every short adopter; The gas frequency of oscillation significantly reduces in the pipe, and the jet frequency also can reduce thereupon, and the rotating speed of gas distributor nozzle also just and then reduces; Promptly can under lower rotating speed, move the life-span of ability significant prolongation rolling bearing.
Below in conjunction with accompanying drawing and specific embodiment the present invention is further specified.
Description of drawings
Fig. 1 is the general structure sketch of an embodiment of mixed containing cavity heat dissipation gas wave refrigerating machine of the present invention.
Among the figure, 1, governing speed and steady speed controlled motor, 2, shaft coupling, 3, shaft end seal, 4, the outer rolling bearing, 5, outer bearing carrier; 6, inlet chamber, 7, air inlet pipe, 8, the main shaft side direction imports opening, 9, rotatory sealing in the machine, 10, main shaft, 11, body; 12, interior rolling bearing, 13, the main shaft side direction derives opening, 14, the rotating jet distributor, 15, nozzle flow channel, 16, short adopter; 17, adopter cylinder, 18, the shell that is tightly connected, 19, cavity volume shell altogether, 20, cavity volume altogether, 21, heat exchange unit; 22, heat transferring medium outlet, 23, the heat transferring medium inlet, 24, the cold air outlet chamber, 25, the cold air outlet pipe, 26, end cap.
The specific embodiment
Introduce a kind of typical embodiment of mixed containing cavity heat dissipation gas wave refrigerating machine of the present invention below, but be not limited to this a kind of mode.
Mixed containing cavity heat dissipation gas wave refrigerating machine; Mainly form by rotatory sealing 9 in inlet chamber 6, air inlet pipe 7, the machine, main shaft 10, body 11, rotating jet distributor 14, short adopter 16, adopter cylinder 17, common cavity volume 20, heat exchange unit 21, cold air outlet chamber 24 and cold air outlet pipe 25; Rotating jet distributor 14 makes jet snap to the mouth of pipe at the short adopter of each root 16 tops successively and get into to freeze in the pipe and returns discharge again; It is characterized in that: the non-jet inlet end of the short adopter 16 that circumference is arranged i.e. end also is an opening; And this end openings cavity volume 20 together is connected; Altogether in the cavity volume 20 heat exchange unit 21 is housed, heat exchange unit 21 absorbs the compressional wave that from short adopter 16, passes in the common cavity volume 20 or the energy of shock wave.
The inlet chamber 6 of pressed gas in air inlet pipe 7 enters body 11, the main shaft side direction through main shaft 10 hollow section imports opening 8 and imports main shafts 10 hollow section, and then derives opening 13 from the main shaft side direction and enter the rotating jet distributor 14.The nozzle flow channel 15 of several circumference symmetries is arranged on the rotating jet distributor 14, and its open end is close to the inner face of adopter cylinder 17, i.e. an end opening of short adopter 16.Rotating jet distributor 14 remaining circumferential section are vacancy then, thereby makes this end opening of short adopter 16, after nozzle flow channel 15 leaves, can directly be communicated in the cold air outlet chamber 24 in the shell 18 that is tightly connected.Jet from the ejection of rotating jet distributor 14 top nozzle runners 15 openings; Enter and be close to; Register was in the short adopter 16 of that root (or several) of nozzle flow channel 15 aperture positions at that time, and the gas of having deposited in the short adopter 16 of compression produces compressional wave and pools shock wave; Another opening to short adopter 16 is propagated, and another opening of each short adopter 16 all is communicated in a public volume---be total to cavity volume 20.In being total to cavity volume 20, the heat exchange unit 21 of taking heat away is installed, the powerful absorption of heat with shock wave and compressional wave generation declined no energy of ripple rapidly, can not return in the short adopter 16 again, heats the jet gas of the refrigeration of having done work.
20 end openings with every short adopter 16 of cavity volume are communicated with altogether, do not have other exit passageway.Owing to constantly have jet gas to inject short adopter 16, the quality that system increases is can only be more return from short adopter 16 to be gone out, and enters cold air outlet chamber 24.Because process is very fast; Nozzle flow channel 15 openings at jet distributor 14 leave the moment that certain short circuit receives short tube 16 mouths of pipe, and the pressure and the barometric gradient that promote in this adopter all do not have equilibrium, therefore the jet gas that has freezed of incident in a flash before this pipe; Basically all can be promoted by pipe internal pressure gradient and the pressure reduction of managing between interior and the discharge chamber; That end mouth of pipe that gets into from jet returns out again, is vented to cold air outlet chamber 24, flows out refrigeration machine through cold air outlet pipe 25; Other have a spot of pressure wave can from the other end together the mouth of pipe that is communicated with of cavity volume 20 spread out of, to other adjacent mouths of pipe, it is return again to promote the interior gas of the adjacent short adopter of accomplishing exhaust 16, makes the exhaust of adjacent adopter thorough.
In this embodiment; The formation of short adopter 16 is the outer circumference surfaces at adopter cylinder 17, becomes 0～30 ° angle direction along the circumference generatrix direction or with bus, processes a lot of groove parallel to each other; Use again equate with groove width but height less than the long tent of gash depth; Unsettled filling in the groove, its end face keep concordant with adopter cylinder 17 outer circumference surfaces, and immersed solder seam again is with sealing; Groove is top by tight shutoff like this, the portion of adopter cylinder 17 just formed a circle circumferential arrangement, the cross section is the short adopter 16 of square type or narrow fan type.
The length of general adopter cylinder 17; The axis projection length of promptly short adopter 16 is 200～1800 millimeters scope; The radial height in short adopter 16 cross sections; The groove depth that is adopter cylinder 17 deducts the tent height, and between 2～100 millimeters scopes, the width in short adopter 16 cross sections is that groove width is between 1～50 millimeter; The width of long tent equates with groove width; Long tent height is between 1～40 millimeter; The equal in length of the groove that length and adopter cylinder 17 outer surfaces process; The diameter of adopter cylinder 17 is between 60～5000 millimeters scope, and the fluting quantity of adopter cylinder 17 outer circumference surfaces, the i.e. quantity of short adopter 16 are between 10～500.
In this embodiment, cavity volume 20 adopts and the common similar form of heat exchanger altogether, and an end docks with adopter cylinder 17, other end sealing.In being total to cavity volume 20, the heat exchange unit 21 of taking heat away is installed, this embodiment is many U type pipes, and its bend pipe end relies on adopter cylinder 17, and logical cooling water or cold wind are taken away heat in the pipe.When pressure was not high, heat exchange unit 21 also can adopt plate fin heat-exchanging unit efficiently, also can adopt the heat pipe of band finned tube, with efficient heat absorption and be used.
Lime set when altogether refrigeration machine work can be stored in the bottom of cavity volume 20, discharging regularly, when fundamentally solving gas and containing condensable heavy ends, the lime set accumulation can be detained in the machine, the problem of the poor efficiency that freezes.
Claims (7)
1. mixed containing cavity heat dissipation gas wave refrigerating machine; Mainly form by rotatory sealing (9) in inlet chamber (6), air inlet pipe (7), the machine, main shaft (10), body (11), rotating jet distributor (14), many short adopters (16), adopter cylinder (17), common cavity volume (20), heat exchange unit (21), cold air outlet chamber (24) and cold air outlet pipe (25); Rotating jet distributor (14) makes jet snap to the mouth of pipe at the short adopter (16) of each root top successively and get into to freeze in the pipe and returns discharge again; It is characterized in that: the non-jet inlet end of the short adopter (16) i.e. that circumference is arranged end also is an opening; And this end openings cavity volume (20) together is connected; Altogether in the cavity volume (20) heat exchange unit (21) is housed, heat exchange unit (21) absorbs the compressional wave that from short adopter (16), passes in the common cavity volume (20) or the energy of shock wave.
2. mixed containing cavity heat dissipation gas wave refrigerating machine according to claim 1 is characterized in that: the cross section of described short adopter (16) is narrow fan type or shallow/deep groove type.
3. mixed containing cavity heat dissipation gas wave refrigerating machine according to claim 1 and 2; It is characterized in that: the formation method of short adopter (16) is: the outer surface at the adopter cylinder (17) of heavy wall processes many grooves; Fill in the groove and the immersed solder sealing with the little long tent of aspect ratio groove depth from the outer surface suspention again, then the remaining space of groove has just formed short adopter (16).
4. mixed containing cavity heat dissipation gas wave refrigerating machine according to claim 1 and 2; It is characterized in that: the formation method of short adopter (16) is: in the passage flow duct of the ring cross-section that two sleeves surround; Insert blocks ofly radially hold up, length and the isometric thin tent of runner; Circular ring path is divided into narrow fan type in a plurality of gorges or grooved passage, promptly forms each short adopter (16).
5. mixed containing cavity heat dissipation gas wave refrigerating machine according to claim 1 and 2 is characterized in that: short adopter (16) is the circumference generatrix direction along adopter cylinder (17), or becomes 0～30 ° angle direction processing with bus.
6. mixed containing cavity heat dissipation gas wave refrigerating machine according to claim 1 and 2; It is characterized in that: the length of adopter cylinder (17); Promptly the axis projection length of short adopter (16) is lacked the radial height in adopter (16) cross section between 200～1800 millimeters, and promptly the groove depth of adopter cylinder (17) deducts the tent height; Between 2～100 millimeters scopes, the width in short adopter (16) cross section is that groove width is between 1～50 millimeter; The width of long tent equates with groove width, long tent height between 1～40 millimeter, the equal in length of the groove that long tent length and adopter cylinder (17) outer surface process; The diameter of adopter cylinder (17) between 60～5000 millimeters scope, the fluting quantity of adopter cylinder (17) outer circumference surface, the quantity of promptly short adopter (16) is between 10～500.
7. mixed containing cavity heat dissipation gas wave refrigerating machine according to claim 1 is characterized in that: cavity volume (20) adopts and the common similar form of heat exchanger altogether, and an end docks with adopter cylinder (17), other end sealing; Heat exchange unit (21) in the cavity volume (20) is many U type pipes altogether, and its bend pipe end relies on adopter cylinder (17), and logical cooling water or cold wind are taken away heat in the pipe, and when pressure was not high, heat exchange unit (21) was a plate-fin, and the heat pipe of band finned tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101075168A CN101762110B (en) | 2010-02-06 | 2010-02-06 | Mixed containing cavity heat dissipation gas wave refrigerating machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101075168A CN101762110B (en) | 2010-02-06 | 2010-02-06 | Mixed containing cavity heat dissipation gas wave refrigerating machine |
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| CN101762110A CN101762110A (en) | 2010-06-30 |
| CN101762110B true CN101762110B (en) | 2012-09-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121759B (en) * | 2011-03-01 | 2012-06-13 | 深圳市力科气动科技有限公司 | Pneumatic gas wave refrigerator |
| CN107166792B (en) * | 2017-05-08 | 2022-11-29 | 大连理工大学 | Variable cross-section two-end opening pressure oscillation pipe refrigerator |
| CN107843021B (en) * | 2017-11-13 | 2019-07-30 | 大连理工大学 | A kind of double-deck nozzle biexhaust pipe air wave refrigerating device of built-in driving hydro-cushion |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1501104A1 (en) * | 1965-10-09 | 1969-10-23 | Philips Nv | Device with a cold or heat source e.g. a cold gas cooling machine or a nuclear reactor and a power system in which a medium for transferring cold or heat from the source to a point to be cooled or heated can circulate |
| US3557566A (en) * | 1967-07-27 | 1971-01-26 | Philips Corp | Method and device for producing cold and liquefying gases |
| CN101571326A (en) * | 2009-05-22 | 2009-11-04 | 深圳市力科气动科技有限公司 | Gas wave refrigerator |
-
2010
- 2010-02-06 CN CN2010101075168A patent/CN101762110B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1501104A1 (en) * | 1965-10-09 | 1969-10-23 | Philips Nv | Device with a cold or heat source e.g. a cold gas cooling machine or a nuclear reactor and a power system in which a medium for transferring cold or heat from the source to a point to be cooled or heated can circulate |
| US3557566A (en) * | 1967-07-27 | 1971-01-26 | Philips Corp | Method and device for producing cold and liquefying gases |
| CN101571326A (en) * | 2009-05-22 | 2009-11-04 | 深圳市力科气动科技有限公司 | Gas wave refrigerator |
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