CN1687674A - Compression wave generation system of cooling machine with compressor of constant oil lubricating flow - Google Patents
Compression wave generation system of cooling machine with compressor of constant oil lubricating flow Download PDFInfo
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- CN1687674A CN1687674A CN 200510011729 CN200510011729A CN1687674A CN 1687674 A CN1687674 A CN 1687674A CN 200510011729 CN200510011729 CN 200510011729 CN 200510011729 A CN200510011729 A CN 200510011729A CN 1687674 A CN1687674 A CN 1687674A
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Abstract
The invention relates to the pressure wave producing system of the oil-lubricating stable flowing compressor refrigerator. It comprises the compressor orderly connected and forming the loop, the oil conveying pipeline, the plane revolving valve between the revolving electric machine and the refrigerator. Its characteristics are: it also includes the elastic film equipped between the plane revolving valve and the refrigerator; the said plane revolving valve is lubricated by oil. The said elastic film is the organic or metal material film with high elasticity. Compared with the prior art, the key technology of the invention is that it adopts the high-elasticity film that can effectively convey the mechanic power to the refrigerating system in sound wave pattern and prevent the lubricating oil in the pressure wave producing system going into the refrigerating system. It makes the GM refrigerator maintain the high efficiency and improve the reliability and greatly reduces the cost.
Description
Technical field
The invention belongs to refrigeration and cryogenic technique field, specifically relate to the pressure wave generation systems of steady flow compressor cooling machine of the oil lubrication of a kind of GM of being used for refrigeration machine or GM type pulse tube refrigerating machine.
Background technology
Utilize the Cryo Refrigerator of steady flow driven compressor, for example GM refrigeration machine and GM type pulse tube refrigerating machine are a kind of backheating type small size Cryo Refrigerators that adopts regenerator.Its low-temp. portion separation structure compactness, the refrigerating efficiency height.At present, the pressure wave generation systems of this class refrigeration machine all contains complicated oil lubrication filtration system.The Cryo Refrigerator that drives with the piston compressor that valve is arranged is an example, as shown in Figure 1, the pressure wave generation systems of typical GM refrigeration machine comprise the compressor 1 that links to each other successively and form the loop, the first oil/gas pipe road 2 and on first check valve 3, the second oil/gas pipe road 5, first air delivering pipeline 7, be installed in plane rotating valve 8, second air delivering pipeline 11, the 4th check valve 14 between electric rotating machine 9 and refrigeration machine, between first check valve 3 and the 4th check valve 14, also be connected with one-level oil filtration system 4 and the 3rd check valve 13 respectively in parallel; The secondary oil filtration system 6 and second check valve 12.Described compressor 1 also can be the positive displacement compressor of valveless.But because the critical component-plane rotating valve 8 of the pressure wave generation systems of the refrigeration machine of this class steady flow driven compressor directly links to each other with refrigeration machine, lubricating oil enters refrigeration machine easily, thereby increase flow resistance and reduce heat transfer property, and make the performance of refrigeration machine descend, the refrigeration machine of particularly working at low temperatures also can not be worked because lubricating oil freezes to stop up runner, so plane rotating valve 8 normally can not adopt oil lubrication.
But because the oil-free lubrication of plane rotating valve will cause following problem: (1) is because the dry friction of the high-low pressure valve of plane rotating valve causes its reliability extreme difference; (2) or, thereby in order to reduce the problem that the dry friction that brings because of oil-free lubrication reduces system effectiveness, plane rotating valve need be selected the high-quality high-abrasive material for use, also requires it to have accurate processing technology and mechanical performance simultaneously, causes its cost of manufacture higher relatively thus; And, there is not the plane rotating valve of oil lubrication not long service life, structure is too complicated, thus the very big application that must influence it; (3) generally there is the saturation problem of sorbing material in oily filtration system, and its longest-lived also only is about 1～2 year.Therefore, although this class refrigeration machine has a lot of potential uses, still do not used on a large scale at present.
Summary of the invention
The objective of the invention is to overcome the defective that reliability extreme difference, plane rotating valve cost of manufacture height and life-span are short, oily filtration system is easily saturated that pressure wave generation systems that prior art adopts the steady flow compressor cooling machine of oil-free lubrication exists, thereby a kind of pressure wave generation systems that can adopt the oil lubrication plane rotating valve and eliminate the steady flow compressor cooling machine of complicated oily filtration system saturation problem, high reliability, oil lubrication cheaply is provided.
The objective of the invention is to realize by the following technical solutions:
The invention provides a kind of pressure wave generation systems of steady flow compressor cooling machine of oil lubrication, comprise successively the compressor 1, the first oil/gas pipe road 2 that link to each other and form the loop, be installed in plane rotating valve 8, the second oil/gas pipe road 5 between electric rotating machine 9 and refrigeration machine, it is characterized in that: also comprise the elastic membrane 15 that is installed between plane rotating valve 8 and refrigeration machine; Described plane rotating valve 8 is the valves by the oil lubrication of the cavity bottom that is contained in compressor 1, alternately the refrigeration machine tube connector is communicated with the high and low pressure of compressor under the drive of electric rotating machine, thereby is pressure wave of refrigeration system generation.
Described compressor 1, it can be the piston compressor that valve is arranged, and also can be the positive displacement compressor of valveless.Have the piston compressor of valve to comprise that electric rotating machine drives and linear electric motors drive two classes, and the positive displacement compressor of valveless comprise helical-lobe compressor, centrifugal compressor, rolling rotor compressor, screw compressor etc.Their effect provides a kind of steady flow with high and low pressure.
Described compressor 1 also comprises first check valve 3 on the first oil/gas pipe road 2 and the 4th check valve 14 on the second oil/gas pipe road 5 when the piston compressor of valve is arranged.
Described elastic membrane is the diaphragm that elastomeric organic material or metal material make, described organic material is fluorubber, latex, natural rubber etc., described metal material then is beryllium-bronze, elastic stainless steel material etc., and the size of their thickness and diameter is designed according to the volume flow in cross section, place and the fatigue limit of elastomeric material.Usually, the material thickness of elastic membrane is between 0.3～5mm, and its sectional area size can be determined according to the tolerance of compressor, and its principle is to guarantee that the displacement of elastic membrane is less than displacement allowable, like this, the life-span of elastic membrane can be much larger than the service life of system.
Compared with prior art, the key technology of the pressure wave generation systems of the steady flow compressor cooling machine of oil lubrication provided by the invention is to have used a kind of highly elastic film, it both can be effectively be delivered to refrigeration system with the mechanical power of compressor with the form of sound wave, can stop the lubricating oil in the pressure wave generation systems to enter into refrigeration system again.In addition, the present invention be advantageous in that:
(1) because lubricated effect improves the service life of plane rotating valve greatly;
(2) can reduce the mechanical processing difficulty of plane rotating valve, reduce cost;
(3) reduce friction loss, can improve the operating efficiency of the motor that drives plane rotating valve;
(4) structure of this pressure wave generation systems is further simplified, and does not need to adopt the complicated oily filtration system of sorbing material, does not have saturated problem.
Therefore, this technology will make existing GM refrigeration machine when keeping original high-efficiency compact its reliability is greatly improved, and cost of manufacture obtains very big reduction.
Description of drawings
Fig. 1 is the pressure wave generation systems schematic diagram of the GM refrigeration machine of traditional oil-free lubrication;
Fig. 2 is the pressure wave generation systems schematic diagram of GM refrigeration machine of the oil lubrication of the embodiment of the invention 1;
Fig. 3 is the pressure wave generation systems schematic diagram of GM refrigeration machine of the oil lubrication of the embodiment of the invention 2;
Wherein, 1 compressor, 2 first oil/gas pipe roads, 3 first check valves, 4 one-levels oil filtration system, 5 second oil/gas pipe roads, 6 secondarys oil filtration system, 7 first air delivering pipelines, 8 plane rotating valves, 9 electric rotating machines, 10 casings, 11 second air delivering pipelines, 12 second check valves, 13 the 3rd check valves, 14 the 4th check valves, 15 elastic membranes.
The specific embodiment
Further describe the pressure wave generation systems of the steady flow compressor cooling machine of oil lubrication provided by the invention below in conjunction with embodiment.
Embodiment 1
As shown in Figure 2, the pressure wave generation systems of the GM of being used for type refrigeration machine provided by the invention comprises: link to each other successively and form that the electric rotating machine in loop drives have valve type piston compressor 1, the first oil/gas pipe road 2 and on first check valve 3, be installed in plane rotating valve 8, the second oil/gas pipe road 5, the 4th check valve 14 between electric rotating machine 9 and refrigeration machine.The elastic membrane 15 of the fluorubber material made of the Viton trade mark that installation one du pont company is produced between plane rotating valve 8 and refrigeration machine.
Be contained in the compressed machine compression of the lubricating oil of compressor 1 bottom, enter plane rotating valve 8, make it obtain good lubrication, turn back in the compressor with gas during then in refrigerator system low pressure, circulate again at the lubricating oil that accumulates in the valve with gas.
Inert gases such as this pressure wave generation systems employing helium are as working medium.
Embodiment 2
As shown in Figure 3, the pressure wave generation systems of the GM of being used for type refrigeration machine provided by the invention comprises: link to each other successively and form the loop a helical-lobe compressor 1, the first oil/gas pipe road 2, be installed in plane rotating valve 8, the second oil/gas pipe road 5 between electric rotating machine 9 and refrigeration machine.The elastic membrane 15 of one beryllium-bronze material made is installed between plane rotating valve 8 and refrigeration machine.
Be contained in the compressed machine compression of the lubricating oil of compressor 1 bottom, enter plane rotating valve 8, make it obtain good lubrication, turn back in the compressor with gas during then in refrigerator system low pressure, circulate again at the lubricating oil that accumulates in the valve with gas.
Inert gases such as this pressure wave generation systems employing helium are as working medium.
Claims (7)
1, a kind of pressure wave generation systems of steady flow compressor cooling machine of oil lubrication, comprise successively the compressor (1), the first oil/gas pipe road (2) that link to each other and form the loop, be installed in plane rotating valve (8), the second oil/gas pipe road (5) between electric rotating machine (9) and refrigeration machine, it is characterized in that:
Comprise that also one is installed on the elastic membrane (15) between plane rotating valve (8) and refrigeration machine;
Described plane rotating valve (8) is the valve by the oil lubrication of the cavity bottom that is contained in compressor (1), under the drive of electric rotating machine, alternately the refrigeration machine tube connector is communicated with the high and low pressure of compressor, thereby is pressure wave of refrigeration system generation.
2, the pressure wave generation systems of the steady flow compressor cooling machine of oil lubrication as claimed in claim 1 is characterized in that: described compressor (1) is for having the piston compressor of valve or the positive displacement compressor of valveless.
3, the pressure wave generation systems of the steady flow compressor cooling machine of oil lubrication as claimed in claim 2 is characterized in that: the described piston compressor that valve arranged is that electric rotating machine drives or linear electric motors drive compression machine.
4, the pressure wave generation systems of the steady flow compressor cooling machine of oil lubrication as claimed in claim 2, it is characterized in that: the positive displacement compressor of described valveless is helical-lobe compressor, centrifugal compressor, rolling rotor compressor or screw compressor.
5, the pressure wave generation systems of the steady flow compressor cooling machine of oil lubrication as claimed in claim 1 is characterized in that: described elastic membrane is the diaphragm that elastomeric organic material or metal material make.
6, as the pressure wave generation systems of the steady flow compressor cooling machine of claim 1 or 5 described oil lubrications, it is characterized in that: described elastic membrane is the diaphragm that fluorubber, latex or natural rubber make.
7, as the pressure wave generation systems of the steady flow compressor cooling machine of claim 1 or 5 described oil lubrications, it is characterized in that: described elastic membrane is the diaphragm that beryllium-bronze or stainless steel material make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510011729XA CN1321303C (en) | 2005-05-17 | 2005-05-17 | Compression wave generation system of cooling machine with compressor of constant oil lubricating flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510011729XA CN1321303C (en) | 2005-05-17 | 2005-05-17 | Compression wave generation system of cooling machine with compressor of constant oil lubricating flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1687674A true CN1687674A (en) | 2005-10-26 |
| CN1321303C CN1321303C (en) | 2007-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510011729XA Expired - Fee Related CN1321303C (en) | 2005-05-17 | 2005-05-17 | Compression wave generation system of cooling machine with compressor of constant oil lubricating flow |
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| Country | Link |
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| CN (1) | CN1321303C (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019335A (en) * | 1976-01-12 | 1977-04-26 | The Garrett Corporation | Hydraulically actuated split stirling cycle refrigerator |
| GB2249620B (en) * | 1981-08-19 | 1992-08-19 | British Aerospace | Cryogenic system |
| GB2104155A (en) * | 1981-08-19 | 1983-03-02 | British Aerospace | Stirling cycle machines |
| CN2465122Y (en) * | 2001-02-27 | 2001-12-12 | 中国科学院理化技术研究所 | Apparatus for regulating cold end air flow phase of pulse pipe refrigerator |
| CN2788097Y (en) * | 2005-05-20 | 2006-06-14 | 中国科学院理化技术研究所 | Pressure wave generation system of oil lubricated refrigerator driven by stable flow compressor |
-
2005
- 2005-05-17 CN CNB200510011729XA patent/CN1321303C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1321303C (en) | 2007-06-13 |
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Granted publication date: 20070613 Termination date: 20140517 |