CN107062673A - A kind of GM refrigeration machines of active gas-powered - Google Patents
A kind of GM refrigeration machines of active gas-powered Download PDFInfo
- Publication number
- CN107062673A CN107062673A CN201710167661.7A CN201710167661A CN107062673A CN 107062673 A CN107062673 A CN 107062673A CN 201710167661 A CN201710167661 A CN 201710167661A CN 107062673 A CN107062673 A CN 107062673A
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- China
- Prior art keywords
- piston
- connecting rod
- cylinder
- pneumatic valve
- operated pneumatic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 43
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses a kind of GM refrigeration machines of active gas-powered, including compressor, cover body, cylinder, drive component, the cylinder is connected with cover body, piston is arranged in cylinder, internal piston is hollow, filled with heat exchange material, upper piston area sets upper gas passage to be connected with the hot chamber of cylinder, and piston lower portion sets lower gas passage to be connected with the cold chamber of cylinder；It is hollow cavity inside the cover body, drive component, connecting rod are arranged in cavity, the connecting rod on the inside of cover body by upper guide sleeve, lower guide sleeve with being connected, and connecting rod lower end is connected with piston；The compressor is connected by first gas passage loop with the pneumatic cavity on connecting rod top, is connected by second gas channel loop with hot chamber；Set on the first gas passage loop on the 3rd operated pneumatic valve, the 4th operated pneumatic valve, the second gas channel loop and the first operated pneumatic valve, the second operated pneumatic valve are set.The present invention introduces Aeroassisted by increasing gas passage, and drive link, piston movement together with drive component can effectively reduce the demand to Motor torque, refrigeration machine is further minimized, lightweight.
Description
Technical field
The present invention relates to a kind of technical field of GM refrigeration machines, more particularly to a kind of GM refrigeration machines of active gas-powered
Technical field.
Background technology
Generally, there is Ji Fude-McMahon known to ultra-low temperature refrigerating device（GM）Circulating refrigerator, Stirling cycle refrigerator
Deng the refrigeration machine with pushing piston.In GM refrigeration machines, pushing piston can be moved back and forth in cylinder, and in cylinder body
Interior low-temperature end formation reciprocating expansion space.In addition, being filled with a large amount of heat exchange materials in pushing piston, gas is by heat exchange material
Material cooling is in low-temperature end swell refrigeration, and the gas stream connects expansion space with pushing piston room temperature space.Pushing piston is reciprocal
Circular motion is changed into axial linear movement by motion by the toggle of indoor temperature end.Traditional GM refrigeration machine structures
In, connecting rod is connected to piston, is pumped by drive component drivening rod piston.With the usual shape of cover body inwall at the top of connecting rod
Into a dead space, when connecting rod band piston is up moved, dead space volume diminishes, internal pressure increase, extrudes connecting rod, hinders to connect
Bar is moved up；When connecting rod band piston is down moved, dead space volume becomes big, and internal pressure reduces, and will adsorb connecting rod, also hinders
Connecting rod is hindered to move down, gas one gas spring of formation in dead space hinders connecting rod, the motion of piston, increases driving group
The load of part, drive component is had to using the larger equipment of power consumption, volume, it is impossible to minimized refrigeration machine, lightweight.
The content of the invention
It is an object of the invention to provide a kind of GM refrigeration machines with gas-powered, by increasing gas passage, by Traditional GM
The dead space on refrigeration machine connecting rod top becomes pneumatic cavity, introduces Aeroassisted, drive link, piston movement together with drive component,
The demand to Motor torque can be effectively reduced, refrigeration machine is further minimized, lightweight.
In order to realize above-mentioned technical purpose, the technical solution adopted by the present invention is as follows.
A kind of GM refrigeration machines of active gas-powered, including compressor, cover body, cylinder, drive component, the cylinder and cover
Body phase is connected, and piston is arranged in cylinder, and internal piston is hollow, and filled with heat exchange material, upper piston area sets upper gas to lead to
Road is connected with the hot chamber of cylinder, and piston lower portion sets lower gas passage to be connected with the cold chamber of cylinder；Inside the cover body
For hollow cavity, drive component, connecting rod are arranged in cavity, and the drive component is connected with connecting rod, and connecting rod is by above leading
To set, lower guide sleeve with being connected on the inside of cover body, connecting rod lower end is connected with piston；The compressor passes through first gas passage
Loop is connected with the pneumatic cavity on connecting rod top, is connected by second gas channel loop with hot chamber；The first gas is led to
3rd operated pneumatic valve, the 4th operated pneumatic valve are set on road loop, set on the second gas channel loop the first operated pneumatic valve,
Second operated pneumatic valve.
Further, the drive component includes crank, cam, motor, and the motor is connected with cam, the crank
One end is connected with cam, and the other end is connected with connecting rod.
Further, the piston and cylinder coaxial are set, and piston outer wall coordinates with cylinder inner wall gap, and piston can be
Moved axially in reciprocal fashion in cylinder.
Further, the upper guide sleeve, lower guide sleeve and connecting rod are coaxially disposed, and connecting rod passes through upper guide sleeve, lower guiding
Set is connected with piston, and connecting rod outer wall coordinates with upper guide sleeve, lower guide sleeve inwall gap, and connecting rod can be with piston vertically
Move back and forth.
Further, the connecting rod is connected with piston coaxial.
Further, first operated pneumatic valve, the 4th operated pneumatic valve are connected with the low-pressure end of compressor, and described second
Operated pneumatic valve, the 3rd operated pneumatic valve are connected with the high-pressure side of compressor.
The dead space on connecting rod top is become pneumatic cavity, passes through sequential control pneumatic operated valve by the present invention by increasing gas passage
The closure of door so that the action direction of the axial Pneumatic pressure suffered by piston is consistent with piston movement direction all the time, auxiliary
Drive component drives piston movement together, reduces the moment of torsion required for drive component, can effectively reduce equipment power dissipation, make refrigeration
Machine is further minimized, lightweight.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein：1. compressor；1a. high-pressure channels；1b. low-pressure channels；2. cover body；3. drive component；3a. cranks；3b. is convex
Wheel；3c. motors；4. connecting rod；The upper guide sleeves of 5a.；Guide sleeve under 5b.；6. first gas passage loop；7. second gas passage
Loop；8. hot chamber；9. cylinder；10. piston；10a. upper gas passages；10b. lower gas passages；10c. heat exchange materials；11.
Cold chamber；The operated pneumatic valves of 12a. first；The operated pneumatic valves of 12b. second；The operated pneumatic valves of 12c. the 3rd；The operated pneumatic valves of 12d. the 4th；13.
Sealing ring；21. pneumatic cavity；22. cavity.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, technical scheme is further described in detail.
As shown in figure 1, a kind of GM refrigeration machines of active gas-powered, including compressor 1, cover body 2, cylinder 9, drive component
3, the cylinder 9 is connected with cover body 2, and piston 10 is arranged in cylinder 9, and piston 10 is coaxially disposed with cylinder 9, and outside piston 10
Wall coordinates with the inwall gap of cylinder 9, and piston 10 can be moved axially in reciprocal fashion in cylinder 9, and the outside of piston 10 is equipped with sealing ring 13,
It can prevent gas from entering cold chamber 11, the inner hollow of piston 10, filled with heat exchange material by the gap between piston 10 and cylinder 9
Expect 10c, the top of piston 10 sets upper gas passage 10a to be connected with the hot chamber 8 of cylinder 9, and the bottom of piston 10 sets bottom gas
Body passage 10b is connected with the cold chamber 11 of cylinder 9.
The inside of cover body 2 is hollow cavity 22, and drive component 3 is arranged in cavity 22, and the drive component 3 includes
Crank 3a, cam 3b, motor 3c, the motor 3c are connected with cam 3b, and described crank 3a one end is connected with cam 3b, separately
One end is connected with connecting rod 4.
The connecting rod 4 is connected by upper guide sleeve 5a, lower guide sleeve 5b with the inner side of cover body 2, upper guide sleeve 5a, lower guiding
Set 5b is coaxially disposed with connecting rod 4, and connecting rod 4 is connected through upper guide sleeve 5a, lower guide sleeve 5b with piston 10, and the outer wall of connecting rod 4
Coordinate with upper guide sleeve 5a, lower guide sleeve 5b inwalls gap, the lower end of connecting rod 4 is connected with piston 10, the connecting rod 4 and piston 10
Coaxially connected, connecting rod 4 can be moved axially in reciprocal fashion with piston 10.
High-pressure channel 1a, the low-pressure channel 1b of the compressor 1 are by first gas passage loop 6 and the top of connecting rod 4
Pneumatic cavity 21 is connected, and is connected by second gas channel loop 7 with hot chamber 8；Set on the first gas passage loop 6
First operated pneumatic valve 12a, are set on the 3rd operated pneumatic valve 12c, the 4th operated pneumatic valve 12d, the second gas channel loop 7
Two operated pneumatic valve 12b, the first operated pneumatic valve 12a, the 4th operated pneumatic valve 12d are connected with the low-pressure end of compressor 1, described
Second operated pneumatic valve 12b, the 3rd operated pneumatic valve 12c are connected with the high-pressure side of compressor 1.
During present invention work, compressor 1 passes through compression refrigerant gas（Helium）The high low pressure gas of formation, through
Two gas passage loops 7 enter hot chamber 8, then enter by upper gas passage 10a inside piston 10, with heat exchange material
10c carries out heat exchange, then enters cold chamber 11 by lower gas passage 10b, and when air-flow passes through heat exchange material 10c, flowing is produced
Pressure drop be generally pressure approximately equal in 0.005~0.01MPa, the hot chamber 8 of cylinder interior and cold chamber 11.
Motor 3c is rotated, and band moving cam 3b, crank 3a motions, the connecting rod 4 being connected with crank 3a are moved with piston 10,
When piston 10 is run from upper change point to lower-limit point, the cold volume of chamber 11 is from maximum to minimum change, and piston 10 is transported along Z axis " forward direction "
Dynamic, now the second operated pneumatic valve 12b is closed, and the first operated pneumatic valve 12a is opened, and the hot chamber 8 of cylinder 9 is returned by second gas passage
Road 7, the first operated pneumatic valve 12a are connected with the low-pressure end of compressor 1, and the gas in cylinder 9 becomes low-pressure gas, while the 3rd
Operated pneumatic valve 12c is opened, and the 4th operated pneumatic valve 12d is closed, and pneumatic cavity 21 passes through first gas passage loop 6, the 3rd pneumatic operated valve
Door 12c is connected with the high-pressure side of compressor 1, and gases at high pressure enter pneumatic cavity 21, now, the axial Pneumatic pressure that piston 10 is subject to
Power Fg can be calculated as follows by formula：
Fg=PH × S4+ PL × (S10- S4)-PL × S10
Wherein：S4The cross-sectional area of position connecting rod 4；S10For the cross-sectional area of piston 10；PH is the gases at high pressure pressure of compressor 1；
PL is the low-pressure gas pressure of compressor 1.
By abbreviation, Fg=（PH-PL）×S4
Now Pneumatic pressure is just, direction is downwards, consistent with the direction of motion of piston 10.
When piston 10 is moved from lower-limit point to upper change point, the volume of cold chamber 11 is changed from minimum to maximum volume, piston
10 are closed along Z-direction counter motion, now the first operated pneumatic valve 12a, and the second operated pneumatic valve 12b is opened, and the hot chamber 8 of cylinder 9 passes through
Second gas channel loop 7, the second operated pneumatic valve 12b are connected with the high-pressure side of compressor 1, and the gas pressure in cylinder 9 becomes
Into gases at high pressure, while the 4th pneumatic operated pneumatic valve 12d is opened, the 3rd operated pneumatic valve 12c is closed, and pneumatic cavity 21 passes through the first gas
Body channel loop 6, the 4th operated pneumatic valve 12d are connected with the low-pressure end of compressor 1, and low-pressure gas enters pneumatic cavity 21, now,
The axial Pneumatic pressure Fg that piston 10 is subject to can be calculated as follows by formula：
Fg=PL × S4+ PH × (S10- S4)-PH × S10
Wherein：S4The cross-sectional area of position connecting rod 4；S10For the cross-sectional area of piston 10；PH is the pressure of the gases at high pressure of compressor 1
By force；PL is the pressure of the low-pressure gas of compressor 1.
By abbreviation, Fg=-（PH-PL）×S4
Now Pneumatic pressure direction is the opposite direction of Z axis, consistent with the direction of motion of piston 10.
The dead space on connecting rod top is become pneumatic cavity, passes through sequential control pneumatic operated valve by the present invention by increasing gas passage
The closure of door so that the action direction of the axial Pneumatic pressure Fg suffered by piston is consistent with piston movement direction all the time, auxiliary is driven
Dynamic component drives piston movement together, reduces the moment of torsion required for drive component, can effectively reduce equipment power dissipation, make refrigeration machine
Further miniaturization, lightweight.
More than, the preferred embodiment of the present invention is had been described in detail, but the present invention is not limited to above-mentioned particular implementation
Various modifications and change are carried out in the range of mode, spirit of the invention that can be described in technical scheme.
Claims (6)
1. a kind of GM refrigeration machines of active gas-powered, including compressor, cover body, cylinder, drive component, it is characterised in that：Institute
State cylinder with cover body to be connected, piston is arranged in cylinder, internal piston is hollow, filled with heat exchange material, upper piston area is set
Upper gas passage is connected with the hot chamber of cylinder, and piston lower portion sets lower gas passage to be connected with the cold chamber of cylinder；Institute
It is hollow cavity to state inside cover body, and drive component, connecting rod are arranged in cavity, and the drive component is connected with connecting rod, even
Bar on the inside of cover body by upper guide sleeve, lower guide sleeve with being connected, and connecting rod lower end is connected with piston；The compressor passes through
One gas passage loop is connected with the pneumatic cavity on connecting rod top, is connected by second gas channel loop with hot chamber；It is described
3rd operated pneumatic valve, the 4th operated pneumatic valve are set on first gas passage loop, the is set on the second gas channel loop
One operated pneumatic valve, the second operated pneumatic valve.
2. the GM refrigeration machines of active gas-powered according to claim 1, it is characterised in that：The drive component includes song
Handle, cam, motor, the motor are connected with cam, and described crank one end is connected with cam, and the other end is connected with connecting rod
Connect.
3. the GM refrigeration machines of active gas-powered according to claim 1, it is characterised in that：The piston and cylinder coaxial
Set, and piston outer wall coordinates with cylinder inner wall gap, piston can be moved axially in reciprocal fashion in cylinder.
4. the GM refrigeration machines of active gas-powered according to claim 1, it is characterised in that：The upper guide sleeve, under lead
It is coaxially disposed to set with connecting rod, connecting rod is connected through upper guide sleeve, lower guide sleeve with piston, connecting rod outer wall and upper guide sleeve,
Lower guide sleeve inwall gap coordinates, and connecting rod can be moved axially in reciprocal fashion with piston.
5. the GM refrigeration machines of active gas-powered according to claim 1, it is characterised in that：The connecting rod and piston coaxial
Connection.
6. the GM refrigeration machines of active gas-powered according to claim 1, it is characterised in that：First operated pneumatic valve,
4th operated pneumatic valve is connected with the low-pressure end of compressor, the height of second operated pneumatic valve, the 3rd operated pneumatic valve and compressor
Pressure side is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710167661.7A CN107062673A (en) | 2017-03-21 | 2017-03-21 | A kind of GM refrigeration machines of active gas-powered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710167661.7A CN107062673A (en) | 2017-03-21 | 2017-03-21 | A kind of GM refrigeration machines of active gas-powered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107062673A true CN107062673A (en) | 2017-08-18 |
Family
ID=59618241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710167661.7A Pending CN107062673A (en) | 2017-03-21 | 2017-03-21 | A kind of GM refrigeration machines of active gas-powered |
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| Country | Link |
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| CN (1) | CN107062673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057130A (en) * | 2019-05-16 | 2019-07-26 | 武汉高德红外股份有限公司 | A kind of sterlin refrigerator |
| CN112413919A (en) * | 2020-12-21 | 2021-02-26 | 深圳供电局有限公司 | Low-temperature refrigerator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06123510A (en) * | 1992-10-09 | 1994-05-06 | Tohoku Electric Power Co Inc | Stirling cycle apparatus with valve |
| CN102759231A (en) * | 2012-07-25 | 2012-10-31 | 北京卫星环境工程研究所 | Normal-pressure/negative-pressure liquid nitrogen subcooler system |
| US20130074523A1 (en) * | 2011-09-28 | 2013-03-28 | Sumitomo Heavy Industries, Ltd. | Cryogenic refrigerator |
| CN103249914A (en) * | 2010-03-15 | 2013-08-14 | 住友美国低温学公司 | Gas balanced cryogenic expansion engine |
| CN104121717A (en) * | 2013-04-24 | 2014-10-29 | 住友重机械工业株式会社 | Cryogenic refrigerator |
| CN105222386A (en) * | 2014-05-27 | 2016-01-06 | 同济大学 | A kind of pneumatic GM refrigeration machine and control procedure thereof |
| CN206670108U (en) * | 2017-03-21 | 2017-11-24 | 中船重工鹏力（南京）超低温技术有限公司 | A kind of GM refrigeration machines of active gas-powered |
-
2017
- 2017-03-21 CN CN201710167661.7A patent/CN107062673A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06123510A (en) * | 1992-10-09 | 1994-05-06 | Tohoku Electric Power Co Inc | Stirling cycle apparatus with valve |
| CN103249914A (en) * | 2010-03-15 | 2013-08-14 | 住友美国低温学公司 | Gas balanced cryogenic expansion engine |
| US20130074523A1 (en) * | 2011-09-28 | 2013-03-28 | Sumitomo Heavy Industries, Ltd. | Cryogenic refrigerator |
| CN102759231A (en) * | 2012-07-25 | 2012-10-31 | 北京卫星环境工程研究所 | Normal-pressure/negative-pressure liquid nitrogen subcooler system |
| CN104121717A (en) * | 2013-04-24 | 2014-10-29 | 住友重机械工业株式会社 | Cryogenic refrigerator |
| CN105222386A (en) * | 2014-05-27 | 2016-01-06 | 同济大学 | A kind of pneumatic GM refrigeration machine and control procedure thereof |
| CN206670108U (en) * | 2017-03-21 | 2017-11-24 | 中船重工鹏力（南京）超低温技术有限公司 | A kind of GM refrigeration machines of active gas-powered |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057130A (en) * | 2019-05-16 | 2019-07-26 | 武汉高德红外股份有限公司 | A kind of sterlin refrigerator |
| CN112413919A (en) * | 2020-12-21 | 2021-02-26 | 深圳供电局有限公司 | Low-temperature refrigerator |
| CN112413919B (en) * | 2020-12-21 | 2022-06-07 | 深圳供电局有限公司 | Low-temperature refrigerator |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
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