CN111804212A - Dewar device with magnetic stirring - Google Patents
Dewar device with magnetic stirring Download PDFInfo
- Publication number
- CN111804212A CN111804212A CN202010649562.4A CN202010649562A CN111804212A CN 111804212 A CN111804212 A CN 111804212A CN 202010649562 A CN202010649562 A CN 202010649562A CN 111804212 A CN111804212 A CN 111804212A
- Authority
- CN
- China
- Prior art keywords
- ring
- flange
- motor
- coupling
- sealing ring
- Prior art date
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F2035/35—Use of other general mechanical engineering elements in mixing devices
- B01F2035/351—Sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Abstract
The invention belongs to the field of low-temperature equipment, and provides a Dewar device for magnetic stirring, which comprises: the device comprises a motor, a motor adapter, a magnetic coupling, a stirring rod adapter, a stirring rod, a motor supporting rod, a coupling flange cover, a sealing ring and a barrel flange cover; the motor is fixed on the coupling flange cover through the motor support rod, and the blades on the stirring rod are driven through the motor adapter, the magnetic coupling and the stirring rod adapter to stir the liquid; the coupling flange cover and the cylinder flange cover are sealed through the sealing ring; the magnetic coupling penetrates through the coupling flange cover to perform non-contact transmission.
Description
Technical Field
The invention belongs to the technical field of low-temperature equipment, and particularly relates to a Dewar device suitable for magnetic stirring.
Background
Dewar is an ideal container and tool for storing liquid gas, low temperature research and crystal element protection. With the development of scientific research, various scientific experiments need to be carried out in a Dewar, which requires that the Dewar not only be a container, but also meet the requirements of scientific experiments, for example, a certain experiment needs to stir low-temperature liquid in the Dewar and observe the liquid state.
However, the existing Dewar device has the problem of poor sealing between the stirring rod and the flange cover, which seriously influences the experiment.
Disclosure of Invention
The invention aims to provide a magnetic stirring Dewar device, and aims to solve the technical problem that sealing is not tight between a stirring rod and a flange cover in the Dewar device in the prior art.
The invention provides a Dewar device for magnetic stirring, which comprises: the device comprises a motor, a motor adapter, a magnetic coupling, a stirring rod adapter, a stirring rod, a motor supporting rod, a coupling flange cover, a sealing ring and a barrel flange cover; the motor is fixed on the coupling flange cover through the motor support rod, and the blades on the stirring rod are driven through the motor adapter, the magnetic coupling and the stirring rod adapter to stir the liquid; the coupling flange cover and the cylinder flange cover are sealed through the sealing ring; the magnetic coupling penetrates through the coupling flange cover to perform non-contact transmission.
Optionally, a stabilizing frame is mounted on a bottom liner end socket of the device to stabilize the far end of the stirring rod.
Optionally, the stabilizer is a bracket made of G10 material.
Optionally, the magnetic coupling is a permanent magnet planar coupling.
Optionally, the apparatus further comprises a visualization module, the visualization module extending through the apparatus.
Optionally, the visualization module comprises a pair of inside flanged sight glasses and a pair of outside flanged sight glasses, the inside flanged sight glasses are low-temperature sight glasses contacting liquid gas and are positioned in the cylinder of the device for containing liquid gas; the outer side flange sight glass is a normal temperature sight glass and is positioned outside the device; the inner side flange viewing mirror and the outer side flange viewing mirror are positioned on the same light path direction.
Optionally, the inside flange sight glass includes first inner flange ring, low temperature sealing ring, first quartz glass, first tetrafluoro packing ring, first outer flange ring from inside to outside in proper order, through pretightning force is applyed to first inner flange ring, first outer flange ring low temperature sealing ring with first tetrafluoro packing ring compresses tightly form behind the first quartz glass and seal.
Optionally, the low-temperature sealing ring is an internal pressure type low-temperature sealing ring.
Optionally, the outside flange sight glass comprises a second inner flange ring, a sealing ring, second quartz glass, a second tetrafluoro gasket and a second outer flange ring from inside to outside, and pretightening force is applied to the sealing ring and the second tetrafluoro gasket through the second inner flange ring and the second outer flange ring, so that sealing is formed after the second quartz glass is pressed.
Optionally, the visualization module further comprises a light shield, and the light shield is located outside the outside flanged view mirror.
The Dewar device for magnetic stirring comprises a motor, a motor adapter, a magnetic coupling, a stirring rod adapter, a stirring rod, a motor supporting rod, a coupling flange cover, a sealing ring and a cylinder flange cover; the motor passes through the motor support pole is fixed on the shaft coupling flange cover, and pass through motor adapter, magnetic coupling, puddler adapter drive blade on the puddler realizes the stirring to liquid, magnetic coupling pierces through the shaft coupling flange cover carries out the non-contact transmission, the shaft coupling flange cover with pass through between the barrel flange cover the sealing washer is realized sealed, when the magnetic stirring is realized to the dewar device, has effectively guaranteed the leakproofness.
Drawings
FIG. 1 is a schematic structural diagram of a magnetic stirring Dewar device according to an embodiment of the present invention;
FIG. 2 is a top view of a stabilizer in a magnetic stirring Dewar device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram illustrating a visualization module in a magnetic stirring dewar apparatus according to a second embodiment of the present invention.
Description of reference numerals:
the device comprises a motor 1, a motor 2, a motor adapter, a magnetic coupler 3, a magnetic coupler 4, a magnetic coupler lower end, a stirring rod 5, a stirring rod 6, a motor support rod 7, a coupler 8, a coupler flange cover 9, an O-shaped sealing ring 10, a cylinder flange cover 11, a light shield 12, an inner flange ring 13, an outer flange ring 14, an inner hexagonal cylinder head screw 15, an elastic gasket 16, a blade 16, a low-temperature sealing ring 17, quartz glass 18, a tetrafluoro gasket 19, a normal-temperature inner flange ring 20, an O-shaped sealing ring 21, a stabilizing frame 22 and a liner end socket 23.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of specific implementations of the present invention is provided in conjunction with specific embodiments:
the first embodiment is as follows:
fig. 1 is a schematic structural diagram of a magnetic stirring dewar apparatus according to an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, which is detailed as follows:
the magnetic stirring Dewar device disclosed by the embodiment of the invention comprises a motor (1), a motor adapter (2), magnetic couplings (3, 4), a stirring rod adapter (5), a stirring rod (6), a motor supporting rod (7), a coupling flange cover (8), an O-shaped sealing ring (9) and a cylinder flange cover (10).
The motor (1) is fixed on the coupling flange cover (8) through the motor support rod (7), and the blades (16) on the stirring rod (6) are driven through the motor adapter (2), the magnetic coupling (3, 4) and the stirring rod adapter (5) to stir liquid. The coupling flange cover (8) and the cylinder flange cover (10) are sealed through an O-shaped sealing ring (9). Two pairs of magnetic couplings (3, 4) penetrate through the coupling flange cover (8) to carry out non-contact transmission, thereby avoiding the use of a dynamic sealing structure and ensuring the sealing performance of the container.
Optionally, the motor (1) is an explosion-proof motor with the torque of 6 N.m.
Optionally, the magnetic force couplers (3 and 4) are permanent magnet plane couplers, and the transmission torque is 2N · m.
Optionally, the blade (16) on the stirring rod (6) is an anchor type stirring blade, the length is 70mm, the width is 70mm, and the material is S31603.
Optionally, the coupler flange cover (8) is 3mm deep in center counter bore, 70mm in inner diameter, 6mm in total thickness and made of S31603.
Optionally, install stabilizer (22) on the bottom inner bag of device head, it is right to be right the puddler distal end is stabilized, prevents to shake the condition in the stirring process, and stabilizer (22) are the support by the preparation of G10 material, and G10 material has fine adiabaticity and wearability, can reduce cold volume and reveal and friction loss, and the radial displacement of center trompil control puddler (6) to guarantee that the stirring process is steady, extension puddler life. Preferably, the center of the stabilizer (22) is provided with a hole of 6.5 mm.
Fig. 2 is a top view of a stabilizer in a magnetic stirring dewar apparatus according to the first embodiment.
Optionally, the inner container of the dewar device is a stainless steel tube with an outer diameter of 89mm and a length of 700mm, and is made of S31603; the cylinder is a stainless steel pipe with the outer diameter of 219mm and the length of 700mm, and is made of S31603.
Example two:
fig. 3 shows a schematic structural diagram of a visualization module in a magnetic stirring dewar apparatus according to a second embodiment of the present invention, and for convenience of description, only the portions related to the second embodiment of the present invention are shown, which is detailed as follows:
the magnetic stirring Dewar device further comprises a visualization module, wherein the visualization module penetrates through the device.
The visualization module comprises a pair of inner side flange sight glasses and a pair of outer side flange sight glasses, wherein the inner side flange sight glasses are low-temperature sight glasses contacting liquid gas and are positioned in the cylinder for containing the liquid gas; the outer side flange sight glass is a normal temperature sight glass and is positioned outside the device; the inner side flange viewing mirror and the outer side flange viewing mirror are positioned on the same light path direction.
As shown in fig. 2, the inside flanged mirror is a low-temperature mirror contacting liquid gas, and is sequentially provided with an inner flange ring (12), a low-temperature sealing ring (17), quartz glass (18), a tetrafluoro gasket (19) and an outer flange ring (13) from inside to outside, and pretightening force is applied to the low-temperature sealing ring (17) and the tetrafluoro gasket (19) through the inner flange ring (12) and the outer flange ring (13), so that sealing is formed after the quartz glass (18) is pressed. The outer side flange sight glass is a normal temperature sight glass, a normal temperature inner flange ring (12), an O-shaped sealing ring (20), quartz glass (18), a tetrafluoro gasket (19) and an outer flange ring (13) are arranged from inside to outside in sequence, pretightening force is applied to the O-shaped sealing ring (20) and the tetrafluoro gasket (19) through the normal temperature inner flange ring (20) and the outer flange ring (13), and sealing is formed after the quartz glass (18) is tightly pressed.
Optionally, the low-temperature sealing ring (17) is an internal pressure type low-temperature sealing ring.
Optionally, the visualization module further comprises a light shield (11), and the light shield is located on the outer side of the outside flanged view mirror, so that the light shield is fastened on the outer side of the normal temperature view mirror during non-observation period, and leakage of cold energy is reduced.
Optionally, the quartz glass is low-temperature quartz glass with an outer diameter of 50 mm.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A magnetic stirring dewar apparatus, comprising: the device comprises a motor, a motor adapter, a magnetic coupling, a stirring rod adapter, a stirring rod, a motor supporting rod, a coupling flange cover, a sealing ring and a barrel flange cover;
the motor is fixed on the coupling flange cover through the motor support rod, and the blades on the stirring rod are driven through the motor adapter, the magnetic coupling and the stirring rod adapter to stir the liquid; the coupling flange cover and the cylinder flange cover are sealed through the sealing ring; the magnetic coupling penetrates through the coupling flange cover to perform non-contact transmission.
2. The apparatus of claim 1, wherein a stabilizer is mounted to a bottom liner head of the apparatus to stabilize a distal end of the stir bar.
3. The device of claim 2, wherein the stabilizer is a bracket made of G10 material.
4. The apparatus of claim 1, wherein the magnetic coupling is a permanent magnet planar coupling.
5. The apparatus of claim 1, further comprising a visualization module, the visualization module extending throughout the apparatus.
6. The apparatus of claim 5, wherein the visualization module comprises a pair of inside flanged sight glasses and a pair of outside flanged sight glasses, the inside flanged sight glasses being low temperature sight glasses contacting the liquid gas, located within a canister for holding the liquid gas; the outer side flange sight glass is a normal temperature sight glass and is positioned outside the device; the inner side flange viewing mirror and the outer side flange viewing mirror are positioned on the same light path direction.
7. The device according to claim 6, wherein the inside flanged sight glass comprises a first inner flange ring, a low-temperature sealing ring, a first quartz glass, a first PTFE gasket and a first outer flange ring from inside to outside, and a pre-tightening force is applied to the low-temperature sealing ring and the first PTFE gasket through the first inner flange ring and the first outer flange ring to press the first quartz glass to form a seal.
8. The apparatus of claim 7, wherein the low temperature seal ring is an internal pressure low temperature seal ring.
9. The device according to claim 6, wherein the outside flanged sight glass comprises a second inner flange ring, a sealing ring, a second quartz glass, a second PTFE gasket and a second outer flange ring from inside to outside, and a pre-tightening force is applied to the sealing ring and the second PTFE gasket through the second inner flange ring and the second outer flange ring to press the second quartz glass to form a seal.
10. The apparatus of claim 6, wherein the visualization module further comprises a light shield positioned outside the outside flanged view mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010649562.4A CN111804212B (en) | 2020-07-08 | 2020-07-08 | Dewar device with magnetic stirring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010649562.4A CN111804212B (en) | 2020-07-08 | 2020-07-08 | Dewar device with magnetic stirring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111804212A true CN111804212A (en) | 2020-10-23 |
| CN111804212B CN111804212B (en) | 2021-10-26 |
Family
ID=72842699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010649562.4A Active CN111804212B (en) | 2020-07-08 | 2020-07-08 | Dewar device with magnetic stirring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111804212B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115855796A (en) * | 2022-12-01 | 2023-03-28 | 合肥工业大学 | Vacuum low-temperature rotary tribology tester and testing method thereof |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089226A (en) * | 1996-11-22 | 2000-07-18 | Aerospace Design & Development, Inc. | Self contained, cryogenic mixed gas single phase storage and delivery |
| CN1528524A (en) * | 2003-10-16 | 2004-09-15 | 上海交通大学 | Low-temperature vertical agitated ball mill with multi cooling modes |
| CN201164801Y (en) * | 2008-01-22 | 2008-12-17 | 东莞市英科水墨有限公司 | Jacket type reactor |
| CN101483378A (en) * | 2009-02-24 | 2009-07-15 | 江苏大学 | Asynchronous magnetic couplings for high temperature resistant high performance oblique slot type rotor |
| WO2009143956A1 (en) * | 2008-05-28 | 2009-12-03 | Sartorius Stedim Biotech Gmbh | Mixing system |
| CN102311120A (en) * | 2011-07-28 | 2012-01-11 | 中国恩菲工程技术有限公司 | Polysilicon reducing furnace and observation visor |
| US20120046174A1 (en) * | 2010-08-20 | 2012-02-23 | Vaucher Alexander R | Superconducting ac generator |
| CN102661482A (en) * | 2012-04-25 | 2012-09-12 | 江苏美时医疗技术有限公司 | Nonmetal magnetism-free liquid nitrogen dewar |
| CN103231646A (en) * | 2013-05-16 | 2013-08-07 | 哈尔滨耦合动力工程技术中心有限公司 | Magnetism-stress coupling parallel-shaft parallel structure automobile hybrid power system and method |
| CN104976404A (en) * | 2014-04-03 | 2015-10-14 | 中国科学院理化技术研究所 | Pneumatic low-temperature regulating valve |
| CN205192909U (en) * | 2015-12-09 | 2016-04-27 | 浙江大学 | Low temperature slurry apparent viscosity measuring device |
| CN105896878A (en) * | 2016-05-30 | 2016-08-24 | 中国科学院电工研究所 | Magnetic switching apparatus for permanent magnet driven high-temperature superconducting flywheel energy storage system |
| CN206246154U (en) * | 2016-10-25 | 2017-06-13 | 四川空分设备(集团)有限责任公司 | Generating rotor assembly and vertical TRT |
| CN107084611A (en) * | 2017-06-06 | 2017-08-22 | 河北工业大学 | A kind of spiral spice pneumatic conveyer dryer |
| CN107159041A (en) * | 2017-06-07 | 2017-09-15 | 哈尔滨工程大学 | A kind of non-contact type magnetic transmission stirring device |
| CN109751402A (en) * | 2019-01-18 | 2019-05-14 | 江苏徐工工程机械研究院有限公司 | A kind of vehicle-mounted coal bed gas drilling machine power head reduction gearbox |
| CN208911899U (en) * | 2018-06-27 | 2019-05-31 | 大连理工高邮研究院有限公司 | A kind of new material production agitating device |
| CN209309329U (en) * | 2018-12-28 | 2019-08-27 | 青岛博锐密封技术有限公司 | A kind of Assembled rotary sealing structure |
| CN210039815U (en) * | 2019-04-24 | 2020-02-07 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Force transmission device |
-
2020
- 2020-07-08 CN CN202010649562.4A patent/CN111804212B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089226A (en) * | 1996-11-22 | 2000-07-18 | Aerospace Design & Development, Inc. | Self contained, cryogenic mixed gas single phase storage and delivery |
| CN1528524A (en) * | 2003-10-16 | 2004-09-15 | 上海交通大学 | Low-temperature vertical agitated ball mill with multi cooling modes |
| CN201164801Y (en) * | 2008-01-22 | 2008-12-17 | 东莞市英科水墨有限公司 | Jacket type reactor |
| WO2009143956A1 (en) * | 2008-05-28 | 2009-12-03 | Sartorius Stedim Biotech Gmbh | Mixing system |
| CN101483378A (en) * | 2009-02-24 | 2009-07-15 | 江苏大学 | Asynchronous magnetic couplings for high temperature resistant high performance oblique slot type rotor |
| US20120046174A1 (en) * | 2010-08-20 | 2012-02-23 | Vaucher Alexander R | Superconducting ac generator |
| CN102311120A (en) * | 2011-07-28 | 2012-01-11 | 中国恩菲工程技术有限公司 | Polysilicon reducing furnace and observation visor |
| CN102661482A (en) * | 2012-04-25 | 2012-09-12 | 江苏美时医疗技术有限公司 | Nonmetal magnetism-free liquid nitrogen dewar |
| CN103231646A (en) * | 2013-05-16 | 2013-08-07 | 哈尔滨耦合动力工程技术中心有限公司 | Magnetism-stress coupling parallel-shaft parallel structure automobile hybrid power system and method |
| CN104976404A (en) * | 2014-04-03 | 2015-10-14 | 中国科学院理化技术研究所 | Pneumatic low-temperature regulating valve |
| CN205192909U (en) * | 2015-12-09 | 2016-04-27 | 浙江大学 | Low temperature slurry apparent viscosity measuring device |
| CN105896878A (en) * | 2016-05-30 | 2016-08-24 | 中国科学院电工研究所 | Magnetic switching apparatus for permanent magnet driven high-temperature superconducting flywheel energy storage system |
| CN206246154U (en) * | 2016-10-25 | 2017-06-13 | 四川空分设备(集团)有限责任公司 | Generating rotor assembly and vertical TRT |
| CN107084611A (en) * | 2017-06-06 | 2017-08-22 | 河北工业大学 | A kind of spiral spice pneumatic conveyer dryer |
| CN107159041A (en) * | 2017-06-07 | 2017-09-15 | 哈尔滨工程大学 | A kind of non-contact type magnetic transmission stirring device |
| CN208911899U (en) * | 2018-06-27 | 2019-05-31 | 大连理工高邮研究院有限公司 | A kind of new material production agitating device |
| CN209309329U (en) * | 2018-12-28 | 2019-08-27 | 青岛博锐密封技术有限公司 | A kind of Assembled rotary sealing structure |
| CN109751402A (en) * | 2019-01-18 | 2019-05-14 | 江苏徐工工程机械研究院有限公司 | A kind of vehicle-mounted coal bed gas drilling machine power head reduction gearbox |
| CN210039815U (en) * | 2019-04-24 | 2020-02-07 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Force transmission device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115855796A (en) * | 2022-12-01 | 2023-03-28 | 合肥工业大学 | Vacuum low-temperature rotary tribology tester and testing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111804212B (en) | 2021-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111804212B (en) | Dewar device with magnetic stirring | |
| US20220317008A1 (en) | High Anti-Vibration Gas Density Monitor | |
| CN216078739U (en) | Copper spherical joint convenient to loading and unloading | |
| CN217927669U (en) | Vacuum socket device for receiving and transferring liquid hydrogen | |
| CN210719571U (en) | Novel oil storage tank leakproofness detects device | |
| CN212511917U (en) | Mounting structure of liquid helium-free superconducting magnet refrigerator | |
| CN211199399U (en) | High-tightness height-adjustable electrode | |
| CN218121056U (en) | Built-in metal tube rotor flowmeter | |
| CN209819016U (en) | Four-side visual view cylinder assembly | |
| CN218719640U (en) | Metal bellows assembly structure for quick connection of demister | |
| CN218735443U (en) | Instrument convenient to installation is maintained | |
| CN220319888U (en) | Sealing structure for pump connection | |
| CN219639712U (en) | Hydrostatic test connector structure | |
| CN209705263U (en) | A kind of tubular shaft sealing structure | |
| CN220187941U (en) | Leakage detection device for pipeline expansion joint | |
| CN212671764U (en) | Pressure gauge connecting equipment | |
| CN218294405U (en) | Output transmission shaft of speed reducer | |
| CN215805234U (en) | Split type magnetic drive pump | |
| CN219104304U (en) | Detect rotatory target dorsal scale pipe gas tightness device | |
| CN215414190U (en) | Low temperature storage tank intermediate layer vacuum detection device | |
| CN216053701U (en) | Passive liquid crystal display screen | |
| CN219872050U (en) | Dampproofing liquid crystal display | |
| CN218102785U (en) | Low-energy-consumption cylinder cover for permanent magnet motor | |
| CN217464937U (en) | But quick assembly disassembly's expander mechanism and refrigerator | |
| CN217684416U (en) | Leak protection mechanism that gas cylinder inspection was used |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |