CN108613863A - A kind of quick cooling device for low temperature SHPB impact experiments - Google Patents
A kind of quick cooling device for low temperature SHPB impact experiments Download PDFInfo
- Publication number
- CN108613863A CN108613863A CN201810515147.2A CN201810515147A CN108613863A CN 108613863 A CN108613863 A CN 108613863A CN 201810515147 A CN201810515147 A CN 201810515147A CN 108613863 A CN108613863 A CN 108613863A
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- Prior art keywords
- lower box
- liquid nitrogen
- low temperature
- shpb
- cooling device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
A kind of quick cooling device for low temperature SHPB impact experiments is related to SHPB experiment auxiliary devices field, and in particular to a kind of quick cooling device for low temperature SHPB impact experiments.Including upper box, upper cover plate, spiral metal tube, lower box, liquid nitrogen metal conduit, laser temperature sensor, thermocouple, liquid nitrogen conveying valve, organic glass manipulation door, emissive plastic glazing, upper box is fitted closely with lower box, spiral metal tube is placed on inside upper box, there are circular hole in lower box both sides and bottom has sink, laser temperature sensor to be placed in nowel body sidewall with thermocouple.Spiral metal tube, which is immersed in liquid nitrogen, accelerates rate of temperature fall.Laser temperature sensor monitors in real time with thermocouple, improves experimental precision.Liquid nitrogen conveys the safety that valve improves low temperature SHPB impact experiments.Upper box makes of temperature insulating material with lower box, avoids operating personnel's low temperature injured.Door, which is manipulated, by emissive plastic glazing and organic glass facilitates observation.
Description
Technical field
The present invention relates to SHPB experiment auxiliary devices fields, and in particular to a kind of for low temperature SHPB impact experiments
Quick cooling device.
Background technology
SHPB dynamic experiments are widely used in the performance study of material, but major part all stops at normal temperatures
Material experiment, but worst cold case equally exists, quickly the stable low temperature environment of construction test particularly important.Current system
Device for cooling refrigerating efficiency is not high, and speed is slow, it is difficult to reach lower temperature levels.
In the prior art, application No. is the Chinese utility model patents of CN201320361378.5 " to be tested for SHPB
Low-temperature insulation device " in provide device cooled down and kept the temperature around SHPB bars by coolant liquid, cool down it is inefficient, it is cold
But speed is slow, it is difficult to reach lower temperature levels.It is " a kind of that application No. is the Chinese invention patents of CN201610162176.6
Provide a kind of refrigeration control method in refrigeration control method, control device and the refrigeration equipment of refrigeration equipment ", control method compared with
For complexity, not yet explicitly proposes the construction of device, be not particularly suited for SHPB experiment conditions.Application No. is CN201610509345.9's
Device provided in Chinese invention patent " insertion slot type cooling structure " cools down for human body head, it is difficult to meet
Requirements of the SHPB to lower temperature, cooling structure cannot be matched with SHPB experimental facilities.Application No. is CN02110664.9
Chinese invention patent " deep refrigerating method and its device " in the device that provides be using smart distillating method, utilization is complex
The circulatory system realize that environment reduces the effect of temperature, but apparatus structure is complicated, bulky, it is difficult to SHPB experimental facilities into
Row matching.Application No. is the Chinese invention patent of CN201610372903.1 " defrosting control method, device and the systems of refrigeration equipment
A kind of frostization control method of complexity is provided in cool equipment ", control method is complex, not yet explicitly proposes the construction of device,
The refrigeration of wide temperature range can not be carried out, and be unsatisfactory for the condition and equipment of SHPB experiments.
In conclusion refrigerating plant exists in the prior art can not solve to be suitable for SHPB experiment conditions and refrigeration effect simultaneously
Rate is high, and speed is fast, the low problem of cryogenic temperature.
Invention content
The purpose of the present invention is to provide one kind fast-refrigerating and accurately monitoring experiment test specimen and environment in real time
Temperature improves experimental precision, easy to operate, can match with SHPB experimental systems, good refrigeration effect, high cooling efficiency, structure
The device of simple SHPB impact experiment Quick uniforms refrigeration.
A kind of quick cooling device for low temperature SHPB impact experiments, including upper box 1, upper cover plate 2, spiral gold
Belong to pipe 3, lower box 4, liquid nitrogen metal conduit 5, laser temperature sensor 6,7 liquid nitrogen of thermocouple conveying valve 8, organic glass manipulation
Door 9, emissive plastic glazing 10.
The upper cover plate 2 is located on upper box 1, and emissive plastic glazing 10 is inlayed in centre；The upper box 1 and lower box 4
It fits closely, and is tightly connected, upper box 1 makes of temperature insulating material with lower box 4；The spiral metal tube 3 is placed on
Inside babinet 1, upper box 1 includes guide hole at three, and 3 inlet end of spiral metal tube is connected to external nitrogen by the hole on side wall
Tank, 3 outlet side of spiral metal tube are connected to lower box 4 by 1 bottom guide hole of upper box；Another place's guide hole in 1 bottom of upper box
Liquid nitrogen metal conduit 5 is connected, 5 other end of liquid nitrogen metal conduit is connected to lower box 4, and 4 inside sink of face lower box, liquid nitrogen
Liquid nitrogen conveying valve 8 is installed on metal catheter 5.
There are circular hole in 4 both sides of the lower box；Laser temperature sensor 6 is placed in 4 same side wall of lower box with thermocouple 7,
Three 6 position faces of laser temperature sensor test specimen to be tested and test specimen both sides incident bar and transmission bar rod end, thermocouple 7 are surveyed
Head is placed in inside lower box 4；Organic glass manipulation door 9 is embedded in 4 side of lower box by sliding rail.
By liquid nitrogen Expenditure Levels in the 10 observable upper box 1 of emissive plastic glazing inlayed on upper cover plate 2, ensure liquid nitrogen leaching
Do not have spiral metal tube 3, according to circumstances adds liquid nitrogen at any time；By laser temperature sensor 6 and thermocouple 7 in real time monitoring test specimen,
Incident bar and gas temperature in transmission bar rod end and lower box 4；9 observable lower box of door, 4 sink is manipulated by organic glass
The Expenditure Levels of middle liquid nitrogen according to circumstances manipulate liquid nitrogen conveying valve 8 and adjust；Organic glass manipulation door 9 can be opened, and hand is used for
Dynamic installation test specimen or adjustment test specimen position.
The beneficial effects of the present invention are：
Spiral metal tube 3 is immersed in liquid nitrogen, and nitrogen cools down rapidly after spiral metal tube 3, is passed into lower box 4
Low temperature nitrogen can not only reduce temperature in lower box 4, moreover it is possible to the volatilization for accelerating liquid nitrogen in sink, further speed up cooling speed
Rate.
Laser temperature sensor 6 monitors test specimen, incident bar and transmission bar rod end and lower box in real time with thermocouple 7
Gas temperature in 4 improves experimental precision.
Unlatching and the closure that liquid nitrogen injection is manipulated equipped with special liquid nitrogen conveying valve 8, avoid operating personnel unintentionally
Liquid nitrogen is touched, the safety of low temperature SHPB impact experiments is improved.Upper box 1 makes of temperature insulating material with lower box 4, avoids
It is injured that operating personnel touch the too low metal parts of temperature.
By emissive plastic glazing 10 and organic glass manipulate door 9 can observe respectively upper box 1 and 4 inner case of lower box with
And liquid nitrogen service condition, to be adjusted at any time to experimental provision.Test specimen can be shot through machine glass manipulation door 9,
Facilitate the collection of experiment television data.
Description of the drawings
Fig. 1 is the quick cooling device schematic diagram of low temperature SHPB impact experiments.
Fig. 2 is the quick cooling device rearview of low temperature SHPB impact experiments.
Fig. 3 is the quick cooling device front view of low temperature SHPB impact experiments.
Fig. 4 is the quick cooling device vertical view of low temperature SHPB impact experiments.
Fig. 5 is device internal structure right view figure.
Fig. 6 A are the structure top views of upper box 1, and Fig. 6 B are the structural schematic diagrams of upper box 1.
Fig. 7 is the structural schematic diagram of upper cover plate 2 and emissive plastic glazing 10.
Fig. 8 is the structural schematic diagram of spiral metal tube 3.
Fig. 9 is the structural schematic diagram of laser temperature sensor 6.
Figure 10 is the structural schematic diagram of organic glass manipulation door 9.
Figure 11 is the structural schematic diagram of lower box 4.
Label is described as follows in attached drawing：
1, upper box, 2, upper cover plate, 3, spiral metal tube, 4, lower box, 5, liquid nitrogen metal conduit, 6, laser temperature sensing
Device, 7, thermocouple, 8, liquid nitrogen convey valve, 9, organic glass manipulate door, 10, emissive plastic glazing, 11, liquid nitrogen conveying valve installation
Position, 12, laser temperature sensor installation site, 13, position of thermocouple, 14, organic glass manipulate door installation site,
15, sink, 16, SHPB bars, 17, venthole, 18, laser temperature sensor registration.
Specific implementation mode
The present invention is described further below in conjunction with the accompanying drawings.
Referring to attached drawing 1,2,3, a kind of quick cooling device for low temperature SHPB impact experiments, including upper box 1,
Upper cover plate 2, spiral metal tube 3, lower box 4, liquid nitrogen metal conduit 5, laser temperature sensor 6, thermocouple 7, liquid nitrogen transfer valve
The components such as door 8, organic glass manipulation door 9, emissive plastic glazing 10.
Apparatus of the present invention when not working, close by upper cover plate 2, and liquid nitrogen conveys valve 8, laser temperature sensor 6 and thermoelectricity
Even 7, organic glass manipulation door 9 is in closed state, without liquid nitrogen in sink in lower box 4.
It is mounted on SHPB incident bars and transmission bar junction, 3 inlet end of spiral metal tube in use, refrigerating plant is corresponded to
Nitrogen gas tank is connected, in advance installs test specimen.Laser temperature sensor 6 and thermocouple 7 are first opened to monitor temperature.In opening
Cover board 2 injects liquid nitrogen and liquid nitrogen is made to submerge spiral metal tube 3, closes the volatilization that upper cover plate reduces liquid nitrogen in upper box 1.It opens
Liquid nitrogen conveys valve 8 and injects liquid nitrogen in sink into lower box 4, observed inside sink through organic glass manipulation door 9 in order to avoid
Liquid nitrogen diffuses out sink, and liquid nitrogen conveying valve 8 is closed after injecting appropriate liquid nitrogen.Nitrogen gas control valve door is opened to be passed through into lower box 4
Nitrogen, since nitrogen rapidly goes to low-temperature condition after the spiral metal tube 3 being immersed in liquid nitrogen inside upper box 1, under making
4 Inside Air Temperature of babinet reduces.Being passed through for nitrogen makes gas circulation in lower box 4 accelerate simultaneously, and more fierce promotes water
Liquid nitrogen quickly volatilizees in slot, and temperature is allowed to reduce rapidly.By in laser temperature sensor 6 and thermocouple 7 in real time monitoring lower box 4
Portion's air, test specimen and incident bar and transmission bar rod end temperature according to circumstances convey speed by the valve regulated nitrogen of nitrogen gas tank
Degree.It is tested when each section temperature reaches requirement of experiment in lower box 4.Experimental phenomena by organic glass manipulate door 9 into
Row observation and acquisition.
If test material needs preserve under specific low temperature, need first to be reduced to 4 inside each section temperature of lower box
Then required temperature manipulates door 9 by organic glass and installs test specimen.
It after use, opens more than 2 organic glass of upper cover plate and manipulates door 9, wait for the clean final finishing of internal remaining liquid nitrogen volatilization
Device, adjustment each section to original state.
A kind of quick cooling device for low temperature SHPB impact experiments belongs to the invention of SHPB experiment field of auxiliary
Device, the device are intended to accelerate liquid nitrogen volatilization inside cryogenic box by low temperature nitrogen, quickly reduce test specimen and test specimen both sides rod end
And gas temperature in space, controllable low temperature environment is built, and then carry out low-temperature dynamic impact experiment.The refrigerating plant includes upper
Babinet, upper cover plate, spiral metal tube, lower box, liquid nitrogen metal conduit, laser temperature sensor, thermocouple, liquid nitrogen transfer valve
Door, organic glass manipulation door, emissive plastic glazing.Nitrogen enters lower box by spiral metal tube, and spiral metal tube is immersed in liquid
Among nitrogen, make by nitrogen rapidly go to low-temperature condition.Lower box contains the sink that can store liquid nitrogen, into the low of lower box
Warm nitrogen makes lower box internal gas circulation accelerate, and accelerates the volatilization of liquid nitrogen, realizes the rapid refrigeration of lower box inner space.Together
When laser temperature sensor real time monitoring lower box Internal Experiment test specimen and test specimen both sides incident bar and transmission bar rod end temperature,
Thermocouple monitors lower box Inside Air Temperature in real time, has the function that be precisely controlled environment temperature.The refrigerating plant can be fast
Speed refrigeration, and can accurately monitor experiment test specimen and environment temperature in real time, it is easy to operate, it can match with SHPB experimental systems,
Good refrigeration effect, high cooling efficiency is simple in structure, and operation is easy.
A kind of quick cooling device for low temperature SHPB impact experiments, including upper box 1, upper cover plate 2, spiral gold
Belong to pipe 3, lower box 4, liquid nitrogen metal conduit 5, laser temperature sensor 6,7 liquid nitrogen of thermocouple conveying valve 8, organic glass manipulation
Door 9, emissive plastic glazing 10, the upper box 1 are fitted closely with lower box 4, and insulating tape sealing joints are used in combination.The spiral gold
Belonging to pipe 3 to be placed on inside upper box 1, there are circular hole in 4 both sides of the lower box, and emissive plastic glazing 10 is inlayed among the upper cover plate 2,
The laser temperature sensor 6 and thermocouple 7 are placed in 4 side wall of lower box, and sink arranged at 4 bottom of the lower box, upper cover plate 2 with
Organic glass, which manipulates, carries handle on door 9.Upper box 1 makes of temperature insulating material with lower box 4.
The upper box 1 includes guide hole at three, and 3 inlet end of spiral metal tube is connected to external nitrogen by the hole on side wall
Tank, 3 outlet side of spiral metal tube are connected to lower box 4 by 1 bottom guide hole of upper box.
Another place's guide hole connection liquid nitrogen metal conduit 5 in 1 bottom of the upper box, the connection of 5 other end of liquid nitrogen metal conduit
To lower box 4, and 4 inside sink of face lower box.
Liquid nitrogen conveying valve 8 is installed, to manipulate in upper box 1 liquid nitrogen to lower box 4 on the liquid nitrogen metal conduit 5
The rate of middle sink injection and unlatching and the closure of injection.
In the invention device, laser temperature sensor 6 and thermocouple 7 are mounted on 4 side wall of lower box, three laser temperatures
6 position face of sensor test specimen to be tested and test specimen both sides incident bar and transmission bar rod end, 7 gauge head of thermocouple are placed in air
In, laser temperature sensor 6 and gas temperature in thermocouple 7 in real time monitoring test specimen, incident bar and transmission bar rod end and lower box 4
Degree.
In the invention device, consumed by liquid nitrogen in the 10 observable upper box 1 of emissive plastic glazing inlayed on upper cover plate 2
Situation ensures that liquid nitrogen submerges spiral metal tube 3, according to circumstances adds liquid nitrogen at any time.It is manipulated under 9 observable of door by organic glass
The Expenditure Levels of liquid nitrogen in 4 sink of babinet according to circumstances manipulate liquid nitrogen conveying valve 8 and adjust.Machine glass manipulation door 9 can be beaten
It opens, for installing test specimen or adjustment test specimen position manually.
Claims (9)
1. a kind of quick cooling device for low temperature SHPB impact experiments, including upper box (1), upper cover plate (2), spiral
Metal tube (3), lower box (4), liquid nitrogen metal conduit (5), laser temperature sensor (6), thermocouple (7), liquid nitrogen convey valve
(8), organic glass manipulation door (9), emissive plastic glazing (10), it is characterised in that：The upper box (1) is close with lower box (4)
Fitting, the upper cover plate (2) is intermediate to inlay emissive plastic glazing (10), and the spiral metal tube (3) is placed in upper box (1)
Portion, lower box (4) both sides have circular hole and bottom to have sink, the organic glass manipulation door (9) to be located at lower box (4) one
Side, the laser temperature sensor (6) are placed in lower box (4) side wall with thermocouple (7).
2. a kind of quick cooling device for low temperature SHPB impact experiments according to claim 1, feature exist
In：The upper box (1) includes guide hole at three, and spiral metal tube (3) inlet end is connected to by the hole on upper box (1) side wall
External nitrogen gas tank, spiral metal tube (3) outlet side are connected to lower box (4), the upper box by upper box (1) bottom guide hole
(1) another place's guide hole connection liquid nitrogen metal conduit (5) in bottom, liquid nitrogen metal conduit (5) other end are connected to lower box (4),
And the internal sink of face lower box (4).
3. a kind of quick cooling device for low temperature SHPB impact experiments according to claim 1 or 2, feature
It is：The upper box (1) makes of temperature insulating material with lower box (4).
4. a kind of quick cooling device for low temperature SHPB impact experiments according to claim 1, feature exist
In：Liquid nitrogen conveying valve (8) is installed on the liquid nitrogen metal conduit (5).
5. a kind of quick cooling device for low temperature SHPB impact experiments according to claim 1, feature exist
In：Laser temperature sensor (6) position face test specimen to be tested and test specimen both sides incident bar and transmission bar rod end.
6. a kind of quick cooling device for low temperature SHPB impact experiments according to claim 1, feature exist
In：It is internal that thermocouple (7) measurement end is placed in lower box (4).
7. a kind of quick cooling device for low temperature SHPB dynamic impact tests according to claim 1, feature exist
In：The upper cover plate (2) passes through hinge connection with upper box (1).
8. a kind of quick cooling device for low temperature SHPB dynamic impact tests according to claim 1, feature exist
In：The organic glass manipulation door (9) is embedded in lower box (4) side by sliding rail.
9. a kind of quick cooling device for low temperature SHPB dynamic impact tests according to claim 1 or 5, feature
It is：There is the component of display test value on the laser temperature sensor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810515147.2A CN108613863A (en) | 2018-05-25 | 2018-05-25 | A kind of quick cooling device for low temperature SHPB impact experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810515147.2A CN108613863A (en) | 2018-05-25 | 2018-05-25 | A kind of quick cooling device for low temperature SHPB impact experiments |
Publications (1)
| Publication Number | Publication Date |
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| CN108613863A true CN108613863A (en) | 2018-10-02 |
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|---|---|---|---|
| CN201810515147.2A Pending CN108613863A (en) | 2018-05-25 | 2018-05-25 | A kind of quick cooling device for low temperature SHPB impact experiments |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373661A (en) * | 2018-10-26 | 2019-02-22 | 中国冶集团有限公司 | Ultralow temperature cooling device and its application |
| CN113029758A (en) * | 2021-03-30 | 2021-06-25 | 哈尔滨工程大学 | Gas heating device capable of realizing accurate temperature control for Hopkinson bar high-temperature experiment |
| CN113295517A (en) * | 2021-07-28 | 2021-08-24 | 中国科学院地质与地球物理研究所 | Hopkinson bar device for hydrate kinetic test |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373661A (en) * | 2018-10-26 | 2019-02-22 | 中国冶集团有限公司 | Ultralow temperature cooling device and its application |
| CN113029758A (en) * | 2021-03-30 | 2021-06-25 | 哈尔滨工程大学 | Gas heating device capable of realizing accurate temperature control for Hopkinson bar high-temperature experiment |
| CN113029758B (en) * | 2021-03-30 | 2022-11-18 | 哈尔滨工程大学 | Gas heating device capable of realizing accurate temperature control for Hopkinson bar high-temperature experiment |
| CN113295517A (en) * | 2021-07-28 | 2021-08-24 | 中国科学院地质与地球物理研究所 | Hopkinson bar device for hydrate kinetic test |
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