CN113967493A - Cryostat device that can be used to scientific research experiment - Google Patents
Cryostat device that can be used to scientific research experiment Download PDFInfo
- Publication number
- CN113967493A CN113967493A CN202111248133.7A CN202111248133A CN113967493A CN 113967493 A CN113967493 A CN 113967493A CN 202111248133 A CN202111248133 A CN 202111248133A CN 113967493 A CN113967493 A CN 113967493A
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- cover
- rdk
- test cover
- test
- wall
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- 238000002474 experimental method Methods 0.000 title claims abstract description 19
- 238000011160 research Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 52
- 230000005855 radiation Effects 0.000 claims abstract description 14
- 238000002788 crimping Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000003287 optical effect Effects 0.000 abstract description 3
- 229910052734 helium Inorganic materials 0.000 description 11
- 239000001307 helium Substances 0.000 description 11
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 11
- 238000001816 cooling Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
- B01L7/50—Cryostats
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a cryostat device for scientific research experiments, which comprises an RDK cold head, wherein a supporting plate is arranged at the bottom of the RDK cold head, a lower test cover and a radiation cover assembly body are sleeved outside the RDK cold head, a sample rack is fixedly arranged at the top of the RDK cold head, an upper test cover is fixedly connected with a top port of the lower test cover, upper and lower cover pressing plates are arranged on the upper test cover and the lower test cover, an observation window cover plate is fixedly sleeved on the outer wall of the upper test cover close to the top of the upper test cover, and a cover cap is fixedly sleeved on the inner wall of the observation window cover plate close to the top of the upper test cover plate. The invention solves the problems that the temperature is unstable and the precision of an experimental result is influenced in low-temperature experiments in the fields of thermophysical property measurement, mechanical property and experiment of a material at a low temperature, optical physical research, measurement of magnetocaloric property of the material, superconducting experiments and the like.
Description
Technical Field
The invention relates to the technical field of scientific research experiments, in particular to a cryostat device which can be used for scientific research experiments.
Background
In the prior art, low-temperature experiments in the fields of thermophysical property measurement, mechanical property and experiments of materials at low temperature, optical physics research, measurement of magnetocaloric properties of materials, superconducting experiments and the like have unstable temperature, and the accuracy of experimental results is influenced, so that a cryostat device for scientific research experiments is provided.
Disclosure of Invention
The invention aims to solve the problems that the temperature is unstable and the precision of an experimental result is influenced in low-temperature experiments in the fields of thermophysical property measurement, mechanical property and experiment of materials at low temperature, optical physical research, measurement of magnetocaloric properties of materials, superconducting experiments and the like, and provides a cryostat device for scientific research experiments.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a cryostat device that can be used to scientific research experiment, including the RDK cold junction, the backup pad is installed to the bottom of RDK cold junction to and the outside has cup jointed down test cover and radiation cover assembly body, and top fixed mounting has the sample frame, test cover on the top port fixedly connected with of test cover down, on test cover and test cover down and install upper and lower cover clamp plate, it has cup jointed the observation window apron to go up the outer wall fixed that test cover is close to the top, the fixed block that has cup jointed of inner wall that the observation window apron is close to the top.
Preferably, the RDK cold head is provided with a first supporting edge close to the outer wall of the bottom, and the bottom of the lower test cover is fixedly arranged on the base surface of the first supporting edge.
Preferably, the RDK cold head is provided with a second supporting edge on the outer wall near the middle part, and the bottom of the radiation shield assembly is fixedly arranged on the top surface of the second supporting edge.
Preferably, the top of the lower test cover is arranged in a flanging mode, a step groove is formed in the inner wall of the flanging position, the bottom of the upper test cover is arranged in the flanging mode, the flanging position is located on the inner wall of the step groove, and the bottoms of the upper and lower cover pressing plates are fixedly pressed on the top surfaces of the flanging positions of the lower test cover and the upper test cover.
Preferably, the observation window cover plate is detachably connected with the upper test cover and the cover cap through bolts respectively.
Preferably, the sample holder is located inside a radiation shield assembly located inside the upper test shield and the cap.
Compared with the prior art, the invention has the following beneficial effects: the device has utilized G-M thermodynamic cycle principle, compresses and expands helium, and the compressor provides the required high pressure helium in the circulation process, transmits to the RDK cold head through flexible metal helium pipeline, and compressed helium expands in the RDK cold head and refrigerates, and the low pressure helium after the inflation returns the compressor, and the repetitive cycle, RDK cold head include the two-stage cold platform, and the first stage cold platform is used for cooling the radiation cover assembly body around the sample, and the second stage cold platform is used for cooling the sample on the sample frame, stabilizes the test sample temperature to 4K finally.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
fig. 1 is an overall sectional structural view of the present invention.
In the figure: the test device comprises a 1-RDK cold head, a 2-lower test cover, a 3-upper test cover, a 4-radiation cover assembly, a 5-sample rack, a 6-observation window cover plate, a 7-upper and lower cover pressing plate, an 8-supporting plate, a 9-cover cap, a 10-first supporting edge and a 11-second supporting edge.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The invention provides a technical scheme that: the utility model provides a cryostat device that can be used to scientific research experiment, including RDK cold head 1, backup pad 8 is installed to the bottom of RDK cold head 1 to and the outside has cup jointed down test cover 2 and radiation cover assembly body 4, and top fixed mounting has sample frame 5, test cover 3 on the top port fixedly connected with of cover 2 down, it covers clamp plate 7 about installing on test cover 3 and the test cover 2 down, it has cup jointed observation window apron 6 to go up test cover 3 and be close to the outer wall fixed at top, observation window apron 6 is close to the fixed cover of the inner wall at top and has been connect the block 9.
The RDK cold head 1 is provided with a first supporting edge 10 close to the outer wall of the bottom, and the bottom of the lower test cover 2 is fixedly arranged on the base surface of the first supporting edge 10.
The RDK cold head 1 is provided with a second supporting edge 11 on the outer wall close to the middle part, and the bottom of the radiation shield assembly 4 is fixedly arranged on the top surface of the second supporting edge 11.
The top of the lower test cover 2 is arranged in a flanging mode, a step groove is formed in the inner wall of the flanging position, the bottom of the upper test cover 3 is arranged in a flanging mode, the flanging position is located on the inner wall of the step groove, and the bottoms of the upper and lower cover pressing plates 7 are fixedly pressed on the top surfaces of the flanging positions of the lower test cover 2 and the upper test cover 3.
The observation window cover plate 6 is detachably connected with the upper test cover 3 and the cover cap 9 through bolts respectively.
The sample holder 5 is located inside a radiation shield assembly 4, and the radiation shield assembly 4 is located inside the upper test shield 3 and the cap 9.
When the device is used, the G-M thermodynamic cycle principle is utilized to compress and expand helium, the compressor provides high-pressure helium needed in the cycle process, the high-pressure helium is transmitted to the RDK cold head 1 through a flexible metal helium pipeline, the compressed helium is expanded and refrigerated in the RDK cold head 1, the expanded low-pressure helium returns to the compressor and is repeatedly circulated, the RDK cold head 1 comprises two stages of cold stages, the first stage of cold stages are used for cooling a radiation shield assembly body 4 around a sample, the second stage of cold stages are used for cooling the sample on a sample rack, and finally the temperature of the test sample is stabilized to 4K.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a cryostat device that can be used to scientific research experiment, is including RDK cold head (1), its characterized in that: the RDK cold junction test device is characterized in that a supporting plate (8) is installed at the bottom of the RDK cold junction (1), a lower test cover (2) and a radiation cover assembly body (4) are sleeved outside the RDK cold junction, a sample frame (5) is fixedly installed at the top of the RDK cold junction, an upper test cover (3) is fixedly connected to a top port of the lower test cover (2), an upper cover pressing plate and a lower cover pressing plate (7) are installed on the upper test cover (3) and the lower test cover (2), an observation window cover plate (6) is fixedly sleeved on the outer wall, close to the top, of the upper test cover (3), and a cover cap (9) is fixedly sleeved on the inner wall, close to the top, of the observation window cover plate (6).
2. A cryostat assembly as claimed in claim 1, wherein: the RDK cold head (1) is provided with a first supporting edge (10) close to the outer wall of the bottom, and the bottom of the lower test cover (2) is fixedly arranged on the base surface of the first supporting edge (10).
3. A cryostat assembly as claimed in claim 1, wherein: a second supporting edge (11) is arranged on the outer wall, close to the middle, of the RDK cold head (1), and the bottom of the radiation cover assembly body (4) is fixedly arranged on the top surface of the second supporting edge (11).
4. A cryostat assembly as claimed in claim 1, wherein: the top of test cover (2) is down for the turn-ups setting, and the inner wall of turn-ups department has seted up the step groove, the bottom of going up test cover (3) is the turn-ups setting, and turn-ups department is located the inner wall in step groove, the fixed crimping in the top surface of test cover (2) and last test cover (3) turn-ups department down of bottom of upper and lower cover clamp plate (7).
5. A cryostat assembly as claimed in claim 1, wherein: the observation window cover plate (6) is detachably connected with the upper test cover (3) and the cover cap (9) through bolts respectively.
6. A cryostat assembly as claimed in claim 1, wherein: the sample holder (5) is located inside a radiation shield assembly (4), and the radiation shield assembly (4) is located inside an upper test shield (3) and a cap (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248133.7A CN113967493A (en) | 2021-10-26 | 2021-10-26 | Cryostat device that can be used to scientific research experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248133.7A CN113967493A (en) | 2021-10-26 | 2021-10-26 | Cryostat device that can be used to scientific research experiment |
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| Publication Number | Publication Date |
|---|---|
| CN113967493A true CN113967493A (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111248133.7A Pending CN113967493A (en) | 2021-10-26 | 2021-10-26 | Cryostat device that can be used to scientific research experiment |
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| CN (1) | CN113967493A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100238970A1 (en) * | 2009-03-19 | 2010-09-23 | United States of America as represented by the Ad- ministrator of the National Aeronautics and Space | Low temperature radiometer |
| CN102998424A (en) * | 2012-11-29 | 2013-03-27 | 安徽万瑞冷电科技有限公司 | High temperature and low temperature testing device |
| CN110440912A (en) * | 2019-08-19 | 2019-11-12 | 中国电子科技集团公司第四十一研究所 | A kind of use for laboratory low temperature radiometer |
| CN110455611A (en) * | 2019-08-19 | 2019-11-15 | 中国电子科技集团公司第四十一研究所 | A kind of cryostat |
-
2021
- 2021-10-26 CN CN202111248133.7A patent/CN113967493A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100238970A1 (en) * | 2009-03-19 | 2010-09-23 | United States of America as represented by the Ad- ministrator of the National Aeronautics and Space | Low temperature radiometer |
| CN102998424A (en) * | 2012-11-29 | 2013-03-27 | 安徽万瑞冷电科技有限公司 | High temperature and low temperature testing device |
| CN110440912A (en) * | 2019-08-19 | 2019-11-12 | 中国电子科技集团公司第四十一研究所 | A kind of use for laboratory low temperature radiometer |
| CN110455611A (en) * | 2019-08-19 | 2019-11-15 | 中国电子科技集团公司第四十一研究所 | A kind of cryostat |
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Application publication date: 20220125 |
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