CN205119547U - Adopt coaxial canalis haemalis refrigerating plant of single -stage of annular canalis haemalis structure - Google Patents
Adopt coaxial canalis haemalis refrigerating plant of single -stage of annular canalis haemalis structure Download PDFInfo
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- CN205119547U CN205119547U CN201520748751.1U CN201520748751U CN205119547U CN 205119547 U CN205119547 U CN 205119547U CN 201520748751 U CN201520748751 U CN 201520748751U CN 205119547 U CN205119547 U CN 205119547U
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Abstract
The utility model discloses an adopt coaxial canalis haemalis refrigerating plant of single -stage of annular canalis haemalis structure, device be including the hot junction heat exchanger, cold junction heat exchanger, outside annular canalis haemalis and rather than interior coaxial cylinder regenerator etc.. This patent adopts annular canalis haemalis structure, through its slit structure, has reduced in the canalis haemalis phenomenon that circulation etc. That the reversal flows working gas worsens the canalis haemalis performance, can improve canalis haemalis performance and even complete machine performance, can be annular groove or convex structure with the cold finger design, more be favorable to and need the coupling of cold equipment, shorten the refrigeration time, improve refrigeration efficiency, the manufacture craft degree of difficulty of whole set equipment improves production efficiency, design and processing cost is reduced.
Description
Technical field
This patent relates to single-stage pulse tube field of low-temperature refrigeration, and particularly a kind of vascular adopts the pulse tube refrigerating device of loop configuration.
Background technology
Because of cold junction movement-less part, through development for many years, vascular refrigerator is little with its mechanical oscillation, compact conformation is simple, service life is long, the plurality of advantages such as reliability is high, are able to extensive use at numerous areas such as military affairs, Aero-Space, medicine, biotechnology, superconductor technology, mobile communication, agricultural, traffic.
According to the difference of the position of regenerator and vascular, single-stage pulse tube refrigerator structure can be divided into three types, i.e. linear pattern single-stage pulse tube refrigerator, as shown in Figure 1, U-shaped single-stage pulse tube refrigerator, as shown in Figure 2, co-axial pulse tube refrigerator, vascular is positioned at coaxial regenerator, as shown in Figure 3.The vascular refrigerator that linear pattern is arranged, the non-reentry phenomenon because of working gas streamlined flow, most effective, but cold finger is placed in the middle part of refrigeration machine, be unfavorable for and being coupled of other apparatuses; The single-stage pulse tube refrigerator of U-shaped layout, without directly contacting between regenerator with vascular, decreasing radial guiding heat loss, improving the restriction of space layout than linear pattern vascular refrigerator to a certain extent, but structure is compact not, necessarily limit to existing during other device coupled; Though co-axial pulse tube refrigerator exists air-flow and has the problems such as larger bending, its compact conformation, cold finger is easy to other apparatuses and is coupled, even if cold finger area is little, but is applicable to place space being had to specific demand.
Fig. 3 gives conventional coaxial type single-stage pulse tube refrigerator structural representation.Working gas after compressor 1 compresses enters hot end heat exchanger 3.3 through tube connector 2 and cools, and then enters annular regenerator 4.3.Looped wire 4.3.2 is filled in regenerator 4.3.Looped wire 4.3.2 need carry out design processing according to the regenerator size, cross-sectional area etc. of design, and is packed in regenerator through special process.In fact, the fill process of regenerator looped wire is very large to the performance impact of regenerator, and working gas have passed through a series of state parameter and changes in regenerator, then enters cool end heat exchanger 5.3, after heat exchanger 5.3 heat exchange and water conservancy diversion, enters vascular 6.3.Cold finger is often designed to a contact at heat exchanger 5.3 place, by with being coupled of other equipment, cold is conducted, and cold finger refrigeration area is less than normal, and in center, needing particular design with during other device coupled.Fig. 4 gives the section of structure of conventional single stage coaxial pulse-tube refrigerator regenerator and vascular relative position.Flow through the working gas of regenerator, after the baffling of 180 °, enter vascular, though through air deflector water conservancy diversion, easily form circulation in vascular, worsen refrigeration machine performance.Be reported in vascular at present and set up guiding device, or vascular is made coaxitron nested structure to improve the circulation phenomenon of working gas in vascular.
Summary of the invention
In view of the shortcoming and defect that above-mentioned prior art and single-stage pulse tube refrigerator exist, this patent devises a kind of single stage coaxial type vascular refrigerator structure adopting annular vascular.
The object of this patent is, layout is optimized to coaxial type single-stage pulse tube refrigerator structure, circularize by vascular, be placed on outside regenerator, namely optimize the fill process of regenerator, air-flow can be made again to reduce circulation and turbulence prediction through vascular, thus the overall efficiency of vascular refrigerator can be improved to a certain extent, reduce manufacture craft difficulty, simplify Making programme, improve design working (machining) efficiency.
Fig. 5 gives the co-axial pulse tube refrigerator system architecture schematic diagram of the employing loop configuration of this patent.Adopt the single stage coaxial type pulse tube refrigerating device of loop configuration vascular, it is characterized in that, described device mainly comprises Linearkompressor 1, tube connector 2, hot end heat exchanger 3.4, regenerator 4.4, cool end heat exchanger 5.4, vascular 6.4, phase adjusting device and inertia tube 8, air reservoir 9.Working gas enters air flue in hot end heat exchanger 3.4 after tube connector 2 and cooling medium carries out heat exchange, and cooled working gas in-position is in the cylindrical shape regenerator 4.4 at center; The hot end heat exchanger 3.3 of the conventional single stage co-axial pulse tube refrigerator system shown in the internal structure of hot end heat exchanger 3.4 and the design of inlet channel and Fig. 3 is distinguished to some extent, hot end heat exchanger 3.3 in Fig. 3, after working gas cooling, flow in the regenerator 4.3 of loop configuration through its edge air flue, and in this patent apparatus structure as shown in Figure 4, the cooled working media of hot end heat exchanger 3.4, the air flue through its center flows in center drum shape regenerator 4.4.
Described in this patent, regenerator 4.4 is distinguished to some extent with the regenerator 4.3 of conventional annular structure.Regenerator 4.4 involved by this patent is columnar structured, when carrying out silk screen 4.4.2 or other porous medias are filled, filling and will greatly simplify filling difficulty, increase work efficiency than annular regenerator 4.3.Silk screen 4.4.2 need not be reprocessed into the loop configuration of certain specification, cost-saved; The fill process of silk screen simplifies, and greatly saves the filling time, arranges the replacing in silk screen later stage or cleaning etc. all very convenient, saves maintenance maintenance cost;
Described cool end heat exchanger 5.4 is also distinct with the cool end heat exchanger 5.3 of conventional coaxial type vascular refrigerator.Working gas, after regenerator, through cool end heat exchanger 5.4 and cooling medium heat exchange, flows through the air flue of its center, and then is assigned in annular vascular 6.4; And conventional cool end heat exchanger is after the annular regenerator 4.3 of periphery, be aggregated into center through air flue, then flow in vascular 6.3 cavity that central area is connected with air flue.
The coaxial type single-stage pulse tube refrigerator vascular of Fig. 6 this patent and regenerator structure profile.The slit toroidal cavity that described annular vascular 6.4 is formed for regenerator outer wall 4.4.1 and vascular outer wall 6.4.1.Near cool end heat exchanger place, generally cold finger is set.The general area of cold finger of conventional coaxial type vascular refrigerator is very little, is outwards exported by cold with the form of contact.Annular vascular involved by this patent, itself and cool end heat exchanger contact area make moderate progress than conventional vascular refrigeration machine, cold finger can be designed to annular channel structure or boss, be more conducive to match with external device, increase contact area, also be more conducive to the transmission of cold, shorten the cool time needing cool equipment.The vascular of general co-axial pulse tube refrigerator is the long straight pipe of hollow, working gas is flow at high speed within it, for avoiding circulation phenomenon, general meeting sets up water conservancy diversion silk screen at vascular near cold junction, and annular vascular 6.4 described in this patent is slit structure, slit itself has good guide functions, and working gas here high speed Oscillating flow also can not produce larger circulation phenomenon;
Described inertia tube 8 is connected with the periphery of hot end heat exchanger 3.4, and working gas, after the hot junction of vascular is cooled again, gathers through the periphery of heat exchanger 3.4, flows through inertia tube 8 and enters air reservoir 9.
This patent compares with existing conventional single stage co-axial pulse tube refrigeration system, and its advantage is:
1) regenerator is placed within annular vascular, than the annular regenerator of conventional coaxial type vascular refrigerator, decreases the design of looped wire, process-cycle and processing cost, reduces fill process difficulty, substantially reduce Making programme;
2) adopt annular vascular structure, working gas flows through vascular narrow slit structure, under slit guide functions, can reduce the phenomenons such as the working gas circulation in conventional vascular, greatly can improve vascular performance, and then improves overall performance;
3) coldfinger can be designed to annular channel or annular boss structure according to annular vascular structure, and coldfinger is peripheral at device cold junction, more be of value to and need cool equipment to match with other, also the output of cold is conducive to, cold finger refrigeration area increases than conventional coaxial refrigeration machine, can shorten the cooling time of equipment.
Accompanying drawing explanation
Fig. 1 is linear pattern single-stage pulse tube refrigerator system architecture schematic diagram;
Fig. 2 is the single-stage pulse tube refrigerator system schematic of U-shaped layout;
Fig. 3 is conventional coaxial type single-stage pulse tube refrigerator system architecture schematic diagram;
Fig. 4 is coaxial type single-stage pulse tube refrigerator vascular and regenerator structure profile;
Fig. 5 is the coaxial type refrigerator system structural representation of the employing annular vascular structure of this patent;
Fig. 6 is coaxial type single-stage pulse tube refrigerator vascular and the regenerator structure profile of this patent.
Number in the figure:
1. Linearkompressor; 2. connecting line; 3.1 linear pattern vascular refrigerator front end heat exchangers; 3.2U type vascular refrigerator front end heat exchanger; 3.3 conventional coaxial type vascular refrigerator hot end heat exchangers; 3.4 this patent co-axial pulse tube refrigerator hot end heat exchangers; 4.1 linear pattern vascular refrigerator regenerators; 4.2U type vascular refrigerator regenerator; 4.3 annular regenerators; 4.3.1 annular backheat wall; 4.3.2 annular fills silk screen; 4.4 this patent co-axial pulse tube refrigerator regenerator; 4.4.1 this patent backheat wall; 4.4.2 silk screen filled by regenerator; 5.1 linear pattern cool end heat exchanger of pulse tube refrigerator; 5.2U type cool end heat exchanger of pulse tube refrigerator; 5.3 conventional coaxial type type cool end heat exchanger of pulse tube refrigerator; 5.4 this patent co-axial pulse tube refrigerator cool end heat exchangers; 6.1 linear pattern vascular refrigerator vasculars; 6.2U type vascular refrigerator vascular; 6.3 conventional coaxial type vascular refrigerator vasculars; 6.3.1 conventional coaxial type vascular refrigerator vascular tube wall; 6.4 this patent annular vascular structure; 6.4.1 this patent annular vascular tube wall; 7.1 linear pattern vascular refrigerator vascular hot-side heat exchanger; 7.2U type vascular refrigerator vascular hot-side heat exchanger; 8. inertia tube; 9. air reservoir.
Detailed description of the invention
By reference to the accompanying drawings, below the structural principle of this patent is described in further detail.
The single stage coaxial type pulse tube refrigerating device of the employing annular vascular structure described in this patent, as shown in Figure 5, the profile of its annular vascular structure and regenerator structure as shown in Figure 6.This patent is the Optimal improvements to conventional coaxial type pulse tube refrigerating device and system thereof, and this patent is different from structure and the relative position that conventional coaxial type pulse tube refrigerating device is regenerator and vascular; The turnover of working gas and the structure of distribution passage and hot end heat exchanger and cool end heat exchanger.
Inflation and cooling procedure, the working gas that linear compressor 1 compresses enters hot junction regenerator 3.4 through tube connector 2, transfers heat to cooling medium wherein.The internal structure of hot end heat exchanger 3.4 is different from the hot end heat exchanger 3.3 of conventional coaxial type single-stage pulse tube refrigerator.The eye of hot end heat exchanger 3.4 is connected with the regenerator 4.4 being positioned at center.Working gas therebetween, carries out heat exchange with silk screen 4.4.2 or other filled medias.Working gas is after cooling, and at cool end heat exchanger 5.4 place, temperature is reduced to setting value, and baffling 180 ° wherein, distribute and pour annular vascular arrangement 6.4.The internal structure of cool end heat exchanger 5.4 is also different with the cool end heat exchanger 5.3 of conventional coaxial type vascular refrigerator.Conventional cool end heat exchanger 5.3, after being gathered by the working gas in annular regenerator, concentrates on central airway, pour central vein 6.3; The cool end heat exchanger 5.4 of this patent, after being collected by the working gas in central area regenerator 6.4, expands in the vascular 6.4 being assigned to loop configuration.The slit spatial flow that working gas surrounds along blood vessel wall 6.4.1 and backheat wall 4.4.1, decreases the phenomenon that the circulation of conventional long straight empty pipe and shock wave etc. worsen vascular performance.The usefulness of this narrow slit structure is also, this structure can improve the performance of vascular, even can reduce the guiding device in conventional vascular.The hot end heat exchanger of vascular 6.4 is in 3.4, and the working media of cooling is understood some and after phase modulating mechanism inertia tube 8 or other phase modulating mechanisms, entered air reservoir 9 through the periphery of hot end heat exchanger 3.4, plays phase adjusted effect.
The refrigeration of vascular concentrates on cool end heat exchanger 5.4 place.Different from conventional cool end heat exchanger 5.3.Conventional cold finger is located at the cold junction of vascular, i.e. the center of cool end heat exchanger, general cold finger mostly is a contact, and cold is derived through cooling medium by this contact, to needing cool equipment to cool, or being directly coupled with needing cool equipment, playing cooling effect.This position needs to consider the structure of space and equipment when design, has some limitations.Adopt structure and the preparation method of this patent, be easy to find, the cold junction of vascular is loop configuration, cold finger can be designed to annular groove or boss structure, with the modes such as buckle with need cool equipment to carry out to be coupled or to be directly used in cooling to need cool equipment, this structural benefit is to increase and the contact area needing cool equipment, can shorten cool time greatly, improves cooling effectiveness; The usefulness of this structure is also, cold finger adopts such structure to be more conducive to need cool equipment to be coupled with periphery, reduces the difficulty of cold transmission and the limitation in space.
At exhaust and heat recovery process, the working gas cooled through hot end heat exchanger 3.4 in annular vascular 6.4 hot junction steadily shakes along annular vascular narrow slit structure and is back in cool end heat exchanger 5.4, collect rear baffling 180 °, central area is pooled to from periphery, flow through and fill silk screen 4.4.2 or other filled medias, cold is passed to filled media, plays the effect of regenerator cold-storage.Working gas through hot end heat exchanger 3.4 and tube connector 2 times compressors 1, completes whole cyclic process again.
The implementation result of this patent is, changes structure and the method for designing of conventional coaxial type vascular refrigerator, namely changes structure and the layout of vascular and regenerator.After adopting annular vascular structure, the phenomenon that the circulation in vascular etc. worsens vascular performance can be improved, improve the overall performance of vascular refrigerator; Regenerator filled media no longer needs to be designed to loop configuration, reduces cost of manufacture and fill process difficulty, reduces the filling time, improves working (machining) efficiency; Change coldfinger, being more conducive to being coupled with needing cool equipment, reducing limitations, substantially reducing cooling time, improve cold transmission efficiency.
More than show and describe the general principle of patent and the advantage of principal character and patent.The technical staff of the industry should understand; this patent is not restricted to the described embodiments; the principle that this patent is just described described in above-described embodiment and description; under the prerequisite not departing from this patent spirit and scope; this patent also has various changes and modifications, and these changes and improvements all fall within the scope of claimed this patent.The claimed scope of this patent is defined by appending claims and equivalent thereof.
Claims (5)
1. one kind adopts the single stage coaxial pulse tube refrigerating device of annular vascular structure, it comprises compressor (1), tube connector (2), hot end heat exchanger (3.4), cylindrical shape regenerator (4.4), cool end heat exchanger (5.4), annular vascular arrangement (6.4), phase adjusting device or inertia tube (8) and air reservoir (9), is characterized in that:
Described compressor (1) is connected with tube connector (2), tube connector (2) is through the central area of hot end heat exchanger (3.4), be connected with cylindrical shape regenerator (4.4), described cylindrical shape regenerator (4.4) is connected with cool end heat exchanger (5.4) central area, cool end heat exchanger (5.4) periphery is connected with annular vascular (6.4), working gas can circulate between cylindrical shape regenerator (4.4) and annular vascular (6.4) through cool end heat exchanger (5.4), and produce refrigeration at the cold junction of annular vascular (6.4), the outer peripheral areas of described hot end heat exchanger (3.4) is connected with inertia tube (8), and portion gas can enter in air reservoir (9) again after cooling, plays phase adjusted effect.
2. a kind of single stage coaxial pulse tube refrigerating device adopting annular vascular structure according to claim 1, it is characterized in that: the air flue central area of described hot end heat exchanger (3.4) is connected with cylindrical shape regenerator (4.4), be connected with phase modulating mechanism inertia tube (8) after gas gathers by peripheral airway.
3. a kind of single stage coaxial pulse tube refrigerating device adopting annular vascular structure according to claim 1, is characterized in that: described cylindrical shape regenerator (4.4) is identical with the cross-sectional area of conventional coaxial type single-stage pulse tube refrigerating plant annular regenerator.
4. a kind of single stage coaxial pulse tube refrigerating device adopting annular vascular structure according to claim 1, it is characterized in that: described cool end heat exchanger (5.4) air flue central area is connected with cylindrical shape regenerator (4.4), peripheral airway is connected with annular vascular structure (6.4), air flue adopts narrow slit structure, cold finger design, in the periphery of this device, is designed to annular boss or groove structure according to needing cool equipment.
5. a kind of single stage coaxial pulse tube refrigerating device adopting annular vascular structure according to claim 1, it is characterized in that: the narrow slit structure that described annular vascular structure (6.4) surrounds for blood vessel wall (6.4.1) and cylindrical shape backheat wall (4.4.1), slit gas path cross sections is long-pending identical with the cross-sectional area of conventional coaxial type single-stage pulse tube refrigerating plant vascular (6.3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520748751.1U CN205119547U (en) | 2015-09-25 | 2015-09-25 | Adopt coaxial canalis haemalis refrigerating plant of single -stage of annular canalis haemalis structure |
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| CN201520748751.1U CN205119547U (en) | 2015-09-25 | 2015-09-25 | Adopt coaxial canalis haemalis refrigerating plant of single -stage of annular canalis haemalis structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115182A (en) * | 2015-09-25 | 2015-12-02 | 中国科学院上海技术物理研究所 | Monopole coaxial pulse tube refrigeration device of annular pulse tube structure and design method thereof |
| CN107091539A (en) * | 2017-06-02 | 2017-08-25 | 中科力函（深圳）低温技术有限公司 | Pulse tube refrigerating machine |
| CN113091343A (en) * | 2021-05-12 | 2021-07-09 | 中国科学院上海技术物理研究所 | Integrated hot end structure of pulse tube refrigerator and implementation method |
-
2015
- 2015-09-25 CN CN201520748751.1U patent/CN205119547U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115182A (en) * | 2015-09-25 | 2015-12-02 | 中国科学院上海技术物理研究所 | Monopole coaxial pulse tube refrigeration device of annular pulse tube structure and design method thereof |
| CN107091539A (en) * | 2017-06-02 | 2017-08-25 | 中科力函（深圳）低温技术有限公司 | Pulse tube refrigerating machine |
| CN107091539B (en) * | 2017-06-02 | 2020-09-18 | 中科力函（深圳）低温技术有限公司 | Pulse tube refrigerator |
| CN113091343A (en) * | 2021-05-12 | 2021-07-09 | 中国科学院上海技术物理研究所 | Integrated hot end structure of pulse tube refrigerator and implementation method |
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