CN205691792U - A kind of Dewar device of superconduction geomagnetic exploration instrument - Google Patents
A kind of Dewar device of superconduction geomagnetic exploration instrument Download PDFInfo
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- CN205691792U CN205691792U CN201620421449.XU CN201620421449U CN205691792U CN 205691792 U CN205691792 U CN 205691792U CN 201620421449 U CN201620421449 U CN 201620421449U CN 205691792 U CN205691792 U CN 205691792U
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- end cap
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- superconduction
- feeding tube
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Abstract
The utility model discloses the Dewar device of a kind of superconduction geomagnetic exploration instrument, the cooled cryostat of superconduction geomagnetic exploration instrument includes end cap, aerofluxus connector, vacuum space, end cap heat ray filter, liquid-feeding tube end cap, liquid-feeding tube, inner shell and shell；Inner shell is arranged at enclosure, and between inner shell and shell, have vacuum space, inner housing inner is provided with liquid-feeding tube, the port of inner shell is coated with end cap, and between inner shell and end cap, increase end cap heat ray filter, being provided with through hole on end cap to match with liquid-feeding tube top port, liquid-feeding tube end cap covers on the top port of liquid-feeding tube；Use double-layer vacuum housing, and in inner shell, it is full of liquid helium, selected housing is without magnetic GRP, a low temperature can be provided without the working environment of magnetic for superconducting quantum interference device well, and device is additionally provided with probe bracket and probe bottom cushioning supportive part, improve security performance when device uses.
Description
Technical field
This utility model relates to superconduction geomagnetic exploration Instrument technology field, particularly to a kind of superconduction geomagnetic exploration instrument
Dewar device.
Background technology
Based superconductive quantum interfering device (superconducting quantum interference device, SQUID)
The superconduction geomagnetic exploration instrument developed can explore grave in ancient times, ruins and other Cultural Relic Resource, efficiently due to superconduction geomagnetic exploration
Instrument use the most highly sensitive weak magnetic signal detector superconducting quantum interference device (SQUID), therefore, compared to tradition based on
The geomagnetic exploration instrument of transient electromagnetic method has higher susceptiveness and accuracy.But, superconduction geomagnetic exploration instrument front end core
Part superconducting quantum interference device must operate at liquid helium region (4.2K=-268.8 DEG C)；But, the design of existing Dewar is adopted mostly
Make such as rustless steel, copper with metal material, and internal structure is processed by shot blasting, but, these metal materials are at earth magnetic
Under field or other exogenous Magnetic Field Source effect, easily produce the superconduction that magnetic noise (such as motion magnetic noise etc.) interference sensitivity is high
Quantum interfering device normally works, and the useful signal causing geomagnetic exploration instrument to collect can be submerged in magnetic noise completely；Therefore,
Needing to develop a kind of Dewar device can applied in superconduction geomagnetic exploration instrument, this Dewar device can store liquid for a long time
Helium, provides low temperature without the environment of magnetic for superconducting quantum interference device, can install again superconduction geomagnetic exploration instrument probe, ensure superconduction earth magnetism
Exploration instrument carries out safety, normally works.
Utility model content
To this end, this utility model provides the Dewar device of a kind of superconduction geomagnetic exploration instrument, it is used for solving superconduction earth magnetism
In use, the superconducting quantum interference device in superconduction geomagnetic exploration instrument needs to be operated in low temperature, environment without magnetic to exploration instrument
Middle problem；
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that a kind of superconduction geomagnetic exploration instrument is used
Dewar device, including end cap 1, aerofluxus connector 4, vacuum space 5, end cap heat ray filter 7, liquid-feeding tube end cap 8, liquid-feeding tube 9,
Inner shell 15 and shell 16；
It is internal that described inner shell 15 is arranged at described shell 16, and arranges between described inner shell 15 and described shell 16
Stating vacuum space 5, described inner shell 15 is internally provided with described liquid-feeding tube 9, and the port of described inner shell 15 is coated with described end cap 1,
And between described inner shell 15 and described end cap 1, increase described end cap heat ray filter 7, described end cap 1 is provided with through hole and institute
Stating liquid-feeding tube 9 top port to match, described liquid-feeding tube end cap 8 covers on the top port of described liquid-feeding tube 9, described aerofluxus
Connector 4 is arranged on the both sides on the top of described liquid-feeding tube 9.
Described inner shell 15 is internal is additionally provided with probe bracket 12 and probe bottom cushioning supportive part 14, described probe bracket 12
Top is adjacent with described end cap 1, and described probe bracket 12 bottom is fixing with cushioning supportive part 14 top, described probe bottom to be connected,
Cushioning supportive part 14 bottom, described probe bottom is connected bottom described inner shell 15.
Described inner shell 15 is internal is additionally provided with liquid level meter 6, and described liquid level meter 6 is adjacent with described probe bracket 12.
Described inner shell 15 is internal is additionally provided with parallel controllable register 17, described parallel controllable register 17 and described probe bracket
12 connect.
Described inner shell 15 outer surface has insulating barrier, described insulating layer material to include kieselguhr, polyvinyl chloride foam.
Described inner shell 15 and described shell 16 material therefor are without magnetic GRP, the described composition material bag without magnetic GRP
Include without magnetic glass fibre, specific epoxy binding agent and polyurethane curing agent.
Described liquid-feeding tube end cap 8 material is the poly-fluorosioloxane rubber of amorphism.
Described superconduction geomagnetic exploration instrument cooled cryostat also include that vacuum-pumping valve 2, described vacuum-pumping valve 2 include:
Snakelike folder 18, silicone rubber seal pipe 19, associating nut 21, relief valve 20, Dewar lateral through aperture 21, valve body 22, described valve body 22
Being connected with described Dewar lateral through aperture 21, relief valve 20 described in described valve body 22 first end connects, described valve body 22 second end with
Described silicone rubber seal pipe 19 connects, and described snakelike folder 18 is connected with described silicone rubber seal pipe 19.
Advantage of the present utility model and beneficial effect: the Dewar dress of the superconduction geomagnetic exploration instrument that this utility model provides
Putting, use double-layer vacuum housing, and be full of liquid helium in inner shell, selected housing is without magnetic GRP, it is possible to be super well
Quantum interfering device one low temperature of the offer working environment without magnetic is provided, and device is additionally provided with probe bracket and delays with probe bottom
Rush support member, improve security performance when device uses.
Accompanying drawing explanation
Fig. 1 is the structural representation within Dewar device of superconduction geomagnetic exploration instrument；
Fig. 2 be superconduction geomagnetic exploration instrument Dewar device in the structural representation of vacuum-pumping valve.
Reference:
1-end cap, 2-vacuum-pumping valve,
3-superconducting quantum interference device electronic equipment, 4-aerofluxus connector,
5-vacuum space, 6-liquid level meter,
7-end cap heat ray filter, 8-liquid-feeding tube end cap,
9-liquid-feeding tube, 10-superconduction geomagnetic exploration instrument probe,
11-superconducting quantum interference device, 12-probe bracket,
13-gradiometer pick-up winding, 14-probe bottom cushioning supportive part,
15-inner shell, 16-shell,
The parallel controllable register of 17-, the snakelike folder of 18-,
19-silicone rubber seal pipe, 20-relief valve,
21-Dewar lateral through aperture, 22-valve body.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings and be embodied as
This utility model is described in detail by example.
The technical solution of the utility model is achieved in that the Dewar device of a kind of superconduction geomagnetic exploration instrument, including
End cap 1, aerofluxus connector 4, vacuum space 5, end cap heat ray filter 7, liquid-feeding tube end cap 8, liquid-feeding tube 9, inner shell 15 and shell 16；
It is internal that inner shell 15 is arranged at shell 16, contains liquid helium, and arrange between inner shell 15 and shell 16 in inner shell 15
Having vacuum space 5, make Dewar device have more preferable insulated heat effect, inner shell 15 is internally provided with liquid-feeding tube 9, the end of inner shell 15
Mouth is coated with end cap 1, and increases described end cap heat ray filter 7 between described inner shell 15 and described end cap 1, selects ultralow warm nature
Can the good poly-fluorosioloxane rubber of amorphism, promote the heat insulation effect of Dewar device further, be provided with on end cap 1 simultaneously through hole with
Liquid-feeding tube 9 top port matches, can be in the case of being not switched on end cap 1, it is achieved add liquid helium to inner shell 15 is internal
Work, covers liquid-feeding tube end cap 8 on the top port of liquid-feeding tube 9 after liquid helium has added, and aerofluxus connector 4 is arranged on
The both sides on the top of described liquid-feeding tube 9, for discharging the liquid helium gas of evaporation；This Dewar device has liquid helium and adds conveniently, protects
The advantage that temp effect is good.
Embodiment two
The technical scheme of the present embodiment is based on embodiment one, as it is shown in figure 1, inner shell 15 is internal is additionally provided with probe bracket 12
With probe bottom cushioning supportive part 14, probe bracket 12 top is adjacent with end cap 1, probe bracket 12 bottom and probe bottom buffering
Support member 14 top is fixing to be connected, and probe cushioning supportive part 14 bottom, bottom is connected with inner shell 15 inner bottom part, wherein, and probe bracket
12 are mainly used in fixing superconduction geomagnetic exploration instrument probe 10, are also associated with bottom cushioning supportive part of popping one's head in support bottom simultaneously
14, it is possible to effectively buffer the vibrations of probe bracket 12, both can protect superconduction geomagnetic exploration instrument probe 10, can reduce again because of shake
The dynamic impact on measurement effect, promotes measurement accuracy, protection probe safety.
Embodiment three
The technical scheme of the present embodiment, based on embodiment one or embodiment two, is additionally provided with as it is shown in figure 1, inner shell 15 is internal
Liquid level meter 6, the liquid level of liquid helium in moment detection inner shell 15, liquid level meter 6 is to coordinate sensor, the liquid that will measure
Position altitude signal passes to superconducting quantum interference device electronic equipment 3, then is converted to electricity through superconducting quantum interference device electronic equipment 3
After pressure signal, it is transferred to superconduction geomagnetic exploration instrument display system port software interface, it is achieved intuitively detect timely, liquid level meter 6
Adjacent with probe bracket 12, make fixing more firm of liquid level meter 6, it is ensured that the safety of liquid level meter 6, it is possible to be prevented effectively from because of liquid
Helium is very few, produces the bigger temperature difference and the damage that causes superconducting quantum interference device 11.
Embodiment four
The technical scheme of the present embodiment is based on embodiment one or embodiment two, and inner shell 15 is internal is additionally provided with parallel regulation gear
Plate 17, parallel controllable register 17 is connected with probe bracket 12, by adjusting the height of parallel controllable register 17, it is possible to achieve to ladder
The position adjustment of degree meter pick-up winding 13, thus more accurately measure magnetic flux in field signal.
Embodiment five
The technical scheme of the present embodiment has insulating barrier, insulating layer material bag based on embodiment one, inner shell 15 outer surface
Include kieselguhr, polyvinyl chloride foam, there is good insulated heat effect, it is possible to reduce the rate of heat exchange of Dewar device, protect
Hold inner shell 15 and hold the low evaporation rate of liquid helium, extend the storage time of liquid helium.
Embodiment six
The technical scheme of the present embodiment is without magnetic GRP, nothing based on embodiment one, inner shell 15 and shell 16 material therefor
The composition material of magnetic GRP includes without magnetic glass fibre, specific epoxy binding agent and polyurethane curing agent, after being fabricated to Dewar,
Magnetic signal will not be produced, provide good low temperature without the working environment of magnetic for superconduction geomagnetic exploration instrument.
Embodiment seven
The technical scheme of the present embodiment is poly-fluorosioloxane rubber based on embodiment one, liquid-feeding tube end cap 8 material, poly-fluorosioloxane rubber
There is the advantage that ultralow temperature performance is good, it is possible under liquid helium temperature, keep good elasticity and toughness, play and seal effect reliably
Really, it is to avoid liquid helium liquid leakage injury operator, lifting means security reliability.
Embodiment eight
The technical scheme of the present embodiment based on embodiment one, superconduction geomagnetic exploration instrument cooled cryostat also include evacuation
Valve 2, vacuum-pumping valve 2 includes: snakelike folder 18, silicone rubber seal pipe 19, relief valve 20, Dewar lateral through aperture 21, valve body 22,
Dewar lateral through aperture 21 is arranged on shell 16, and valve body 22 is connected with Dewar lateral through aperture 21, real by Dewar lateral through aperture 21
Now working the evacuation of vacuum space 5, valve body 22 first end is connected with relief valve 20, when vacuum pressure is too low, and relief valve
20 open, it is to avoid the too low device damage that causes of vacuum, and valve body 22 second end is connected with silicone rubber seal pipe 19, arrange for vacuum
Gas, and silicone rubber is low temperature resistant, will not be freezing because of low temperature, snakelike folder 18 is fixing with silicone rubber seal pipe 19 to be connected, vacuum pumping valve
Door 2 makes the suitable environment of vacuum of vacuum space 5, both ensure that the heat insulation effect of Dewar device, and had ensured that vacuum negative pressure
Safety.
It should be noted that this utility model is illustrated rather than by above-described embodiment, this utility model is limited
Make, and those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.?
In claim, any reference marks that should not will be located between bracket is configured to limitations on claims.Word " includes "
Do not exclude the presence of the element or step not arranged in the claims.Word "a" or "an" before being positioned at element is not excluded for depositing
At multiple such elements.Word first, second and third use do not indicate that any order.Can be by these word solutions
It is interpreted as title.
Claims (8)
1. the Dewar device of a superconduction geomagnetic exploration instrument, it is characterised in that
The Dewar device of described superconduction geomagnetic exploration instrument includes end cap (1), aerofluxus connector (4), vacuum space (5), end cap
Heat ray filter (7), liquid-feeding tube end cap (8), liquid-feeding tube (9), inner shell (15) and shell (16)；
It is internal that described inner shell (15) is arranged at described shell (16), and arranges between described inner shell (15) and described shell (16)
Having described vacuum space (5), described inner shell (15) to be internally provided with described liquid-feeding tube (9), the port of described inner shell (15) covers
There is described end cap (1), and between described inner shell (15) and described end cap (1), increase described end cap heat ray filter (7), described end
Being provided with through hole on lid (1) to match with described liquid-feeding tube (9) top port, described liquid-feeding tube end cap (8) covers and adds described
On the top port of liquid pipe (9), described aerofluxus connector (4) is arranged on the both sides on the top of described liquid-feeding tube (9).
The Dewar device of superconduction geomagnetic exploration instrument the most according to claim 1, it is characterised in that in described inner shell (15)
Portion is additionally provided with probe bracket (12) and probe bottom cushioning supportive part (14), described probe bracket (12) top and described end cap
(1) adjacent, described probe bracket (12) bottom is fixing with cushioning supportive part (14) top, described probe bottom to be connected, described probe
Cushioning supportive part (14) bottom, bottom is connected with described inner shell (15) bottom.
The Dewar device of superconduction geomagnetic exploration instrument the most according to claim 2, it is characterised in that in described inner shell (15)
Portion is additionally provided with liquid level meter (6), and described liquid level meter (6) is adjacent with described probe bracket (12).
The Dewar device of superconduction geomagnetic exploration instrument the most according to claim 2, it is characterised in that in described inner shell (15)
Portion is additionally provided with parallel controllable register (17), and described parallel controllable register (17) is connected with described probe bracket (12).
The Dewar device of superconduction geomagnetic exploration instrument the most according to claim 1, it is characterised in that described inner shell (15) is outward
Surface-coated has insulating barrier, described insulating layer material to include kieselguhr, polyvinyl chloride foam.
The Dewar device of superconduction geomagnetic exploration instrument the most according to claim 1, it is characterised in that described inner shell (15) and
Described shell (16) material therefor is without magnetic GRP, and the described composition material without magnetic GRP includes without magnetic glass fibre, spy
Plant epoxy adhesive and polyurethane curing agent.
The Dewar device of superconduction geomagnetic exploration instrument the most according to claim 1, it is characterised in that described liquid-feeding tube end cap
(8) material is the poly-fluorosioloxane rubber of amorphism.
The Dewar device of superconduction geomagnetic exploration instrument the most according to claim 1, it is characterised in that described superconduction earth magnetism is surveyed
Visit instrument cooled cryostat also include that vacuum-pumping valve (2), described vacuum-pumping valve (2) including: snakelike folder (18), silicone rubber are close
Tube sealing (19), relief valve (20), Dewar lateral through aperture (21), valve body (22), described valve body (22) and described Dewar lateral through aperture
(21) connecting, described in described valve body (22) first end, relief valve (20) connects, described valve body (22) second end and described silicone rubber
Sealing pipe (19) to connect, described snakelike folder (18) is connected with described silicone rubber seal pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421449.XU CN205691792U (en) | 2016-05-11 | 2016-05-11 | A kind of Dewar device of superconduction geomagnetic exploration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421449.XU CN205691792U (en) | 2016-05-11 | 2016-05-11 | A kind of Dewar device of superconduction geomagnetic exploration instrument |
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| CN205691792U true CN205691792U (en) | 2016-11-16 |
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| CN201620421449.XU Active CN205691792U (en) | 2016-05-11 | 2016-05-11 | A kind of Dewar device of superconduction geomagnetic exploration instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946761A (en) * | 2021-02-02 | 2021-06-11 | 中国科学院上海微系统与信息技术研究所 | Cryogenic system and superconducting quantum interference system |
| CN113176525A (en) * | 2021-04-23 | 2021-07-27 | 中国科学院空天信息创新研究院 | Aviation low-temperature superconducting magnetic gradient full-tension magnetometer support frame and temperature control method |
-
2016
- 2016-05-11 CN CN201620421449.XU patent/CN205691792U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946761A (en) * | 2021-02-02 | 2021-06-11 | 中国科学院上海微系统与信息技术研究所 | Cryogenic system and superconducting quantum interference system |
| CN113176525A (en) * | 2021-04-23 | 2021-07-27 | 中国科学院空天信息创新研究院 | Aviation low-temperature superconducting magnetic gradient full-tension magnetometer support frame and temperature control method |
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