CN208607069U - A kind of cryogenic material Mechanics Performance Testing attemperator - Google Patents
A kind of cryogenic material Mechanics Performance Testing attemperator Download PDFInfo
- Publication number
- CN208607069U CN208607069U CN201820693292.5U CN201820693292U CN208607069U CN 208607069 U CN208607069 U CN 208607069U CN 201820693292 U CN201820693292 U CN 201820693292U CN 208607069 U CN208607069 U CN 208607069U
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- computer
- cooling chamber
- temperature
- inlet end
- liquid nitrogen
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Abstract
The utility model discloses a kind of cryogenic material Mechanics Performance Testing attemperators, including cooling chamber, computer and liquid nitrogen volatilizer, the cooling chamber is equipped with first temperature probe and second temperature probe, the both ends of the cooling chamber are respectively equipped with the first inlet end, second inlet end, first outlet side, second outlet side, the computer is connected by temperature feedback route with first temperature probe, the side that the cooling chamber is equipped with the first outlet side is connected by the first heater circuit with computer, the side that the cooling chamber is equipped with the second outlet side is connected by the second heater circuit with computer, first inlet end respectively with liquid nitrogen volatilizer, computer connection, second inlet end respectively with liquid nitrogen volatilizer, computer connection.The utility model makes to keep the temperature the temperature inside the box stabilization, equilibrium by the accurate control of computer and the setting of cooling circuit, realizes the intelligent control of temperature, while also improving the safety of system.
Description
Technical field
The utility model belongs to quiet dynamic cryogenic material technical field of performance test, specifically, being related to a kind of low temperature material
Expect Mechanics Performance Testing attemperator.
Background technique
It when test material cryogenic mechanics performance, needs to control the environment temperature of surrounding materials, to eliminate or reduce
Influence of the environment temperature for material mechanical performance.It is directed to this demand, has been developed that a variety of environment temperature control methods,
Two classes can be generally divided into.One kind is the control of integrated environment temperature, that is, builds large-scale temperature chamber, test equipment is all put
It is placed in temperature chamber.This method needs fairly large manufacture and maintenance, and the cost is relatively high, while equipment is in spy for a long time
At different temperature, especially some electronic components are easily damaged.Another kind of is partial temperature control, i.e., only controls test sample etc.
The temperature of relevant position.Equipment volume manufactured by this scheme is smaller, advantage of lower cost, is also easy to the guarantor of test equipment
It supports.But at present apparently, this kind of product is simultaneously immature, generally requires manual control, and stability is poor, and temperature control hysteresis quality is larger, from
Dynamicization and intelligentized level are low.Hu Shisheng etc. has made the liquid nitrogen cooling chamber an of manual control, when use direct servicing fluids
Nitrogen, this device is relatively easy, but cooling accuracy and uniformity is difficult to ensure (referring to the frozen soil dynamic force such as Hu Shisheng
Learn the experimental study of performance).The researcher in the U.S. laboratory Sandia has developed one and can cool down simultaneously and apply pressure
Device, device freezed using liquefied ammonia, but liquefied ammonia itself volatilizees, there is certain risk, and cannot it is temperature automatically controlled (referring to
Moo Y.Lee,Arlo Fossum,Laurence S,Costin,etal.Frozen soil material testing and
constitutive modeling).Monstafa Shazly, Vikas Prakash, Bradley A.Lerch devise one
The cooling device that a use is freezed by the cooling nitrogen of liquid nitrogen, although safety is higher, but still cannot be temperature automatically controlled, Bu Nengwei
The equalized temperature of long period is held (referring to Monstafa Shazly, Vikas Prakash, Bradley A.Lerch.High
strain-rate behavior of ice under uniaxial compression)。
Utility model content
The purpose of the utility model is to overcome temperature regulating device safety in the prior art, uniformity, accuracies etc.
Deficiency, provides a kind of cryogenic material Mechanics Performance Testing attemperator, which can carry out intelligence for environment temperature needed for testing
It can control.
Its technical solution is as follows:
A kind of cryogenic material Mechanics Performance Testing attemperator, including cooling chamber, computer and liquid nitrogen volatilizer, it is described cold
But chamber is equipped with first temperature probe and second temperature probe, and the both ends of the cooling chamber are respectively equipped with the first inlet end, second
Inlet end, the first outlet side, the second outlet side, the computer are connected by temperature feedback route with first temperature probe, institute
It states side of the cooling chamber equipped with the first outlet side to connect by the first heater circuit with computer, the cooling chamber is equipped with second and goes out
The side at gas end is connected with computer by the second heater circuit, first inlet end respectively with liquid nitrogen volatilizer, computer
Connection, second inlet end are connected with liquid nitrogen volatilizer, computer respectively, first inlet end and liquid nitrogen volatilizer, meter
Autocontrol valve is equipped between calculation machine and between second inlet end and liquid nitrogen volatilizer, computer.
Further, the first cooling circuit and the second cooling circuit are equipped in the cooling chamber, on the cavity wall of cooling chamber
Just and it is respectively arranged below with the first adding thermal resistance and the second adding thermal resistance, is respectively equipped with compression bar at the both ends of the cooling chamber.
Further, described to be respectively equipped between the cavity wall and the first adding thermal resistance, the second adding thermal resistance of cooling chamber
First thermal insulation layer and second thermal insulation layer.
The utility model has the beneficial effects that
The cryogenic material Mechanics Performance Testing attemperator of the utility model passes through the accurate control of computer, and cooling
The setting in circuit makes to keep the temperature the temperature inside the box stabilization, equilibrium, realizes the intelligent control of temperature, while also improving the safety of system
Property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model cryogenic material Mechanics Performance Testing attemperator.
Fig. 2 is the structural schematic diagram of the cooling chamber of the utility model cryogenic material Mechanics Performance Testing attemperator.
Specific embodiment
The technical solution of the utility model is described in more detail in the following with reference to the drawings and specific embodiments.
Referring to Fig.1, a kind of cryogenic material Mechanics Performance Testing attemperator, including cooling chamber 1, computer 2 and liquid nitrogen are waved
Device 3 is sent out, the cooling chamber 1 is equipped with first temperature probe 4 and second temperature probe 5, and the both ends of the cooling chamber 1 are respectively equipped with
First inlet end 6, the second inlet end 7, the first outlet side 8, the second outlet side 9, the computer 2 pass through temperature feedback route 10
It is connected with first temperature probe 4, the cooling chamber 1 is equipped with the side of the first outlet side 8 by the first heater circuit 11 and calculates
Machine 2 connects, and the side that the cooling chamber 1 is equipped with the second outlet side 9 is connected by the second heater circuit 12 and computer 2, described
First inlet end 6 respectively with liquid nitrogen volatilizer 3, computer 2 connect, second inlet end 7 respectively with liquid nitrogen volatilizer 3, meter
Calculation machine 2 connects, between first inlet end 6 and liquid nitrogen volatilizer 3, computer 2 and second inlet end 7 and liquid nitrogen
Autocontrol valve 13 is equipped between volatilizer 3, computer 2.
The temperature that computer is fed back according to set temperature and temp probe, voluntarily judgement is heated or cooled, and is controlled
The switch of gas valve and heater circuit processed.If required temperature is lower than cavity temperature, low temperature nitrogen is passed through until reaching to intracavitary
To required temperature；If cavity temperature is lower than required temperature, not to intracavitary ventilation, while being powered to heater circuit, until reaching
It is required that.
As shown in Fig. 2, the first cooling circuit 14 and the second cooling circuit 15 are equipped in the cooling chamber 1, in cooling chamber 1
The first adding thermal resistance 16 and the second adding thermal resistance 17 are respectively equipped with above and below cavity wall, at the both ends of the cooling chamber 1 point
It She You not compression bar 18.
It is described to be respectively equipped with first between the cavity wall and the first adding thermal resistance 16, the second adding thermal resistance 17 of cooling chamber 1
Thermal insulation layer 19 and second thermal insulation layer 20.
Cooling chamber 1 is directly to apply required environment temperature.First inlet end 6 and the second inlet end 7 from both direction to
It is passed through low temperature nitrogen, after the heat exchange of circuit, is discharged from gas outlet by exhaust gas.Adding thermal resistance is evenly distributed on wall inner wall,
Electrified regulation when needing.Temp probe is to feed back the temperature inside the box to computer, with selection refrigeration or heating.Outside laying is heat-insulated
Layer is to keep the temperature.Cooling circuit helix shape portion in the cavity is sample reserved space.
Cryogenic material Mechanics Performance Testing attemperator described in the utility model in the specific application process, including following step
It is rapid:
Step 1 sets up two parallel gas-guide tubes of spiral shape in small-sized incubator, to pass through the liquid nitrogen just to have gasified,
And make the center at incubator center, and resistance heater is set in the case.Two infrared temperatures of setting are popped one's head in case, are used
With to computer feedback environment temperature and heater, to be heated.
Step 2, two gas-guide tubes one terminate cryogenic gas valve, and the other end leads to outdoor.Another termination liquid of gas valve
Nitrogen tank, to receive low temperature nitrogen.Gas valve is controlled by computer (or single-chip microcontroller).
After step 3, set temperature, if set temperature is lower than environment temperature in case, computer control valve is opened, to air guide
Low temperature nitrogen is inputted in pipe, by reducing the temperature inside the box, after reaching desired temperature, computer with after environment heat transfer in case
Control valve reduces ventilatory capacity, makes the temperature inside the box kept in balance.If set temperature is higher than incubator internal temperature, computer
It controls to case internal heater energization heat release, improves the temperature inside the box, when the set temperature is reached, stop to heating installation power supply.
The preferable specific embodiment of the above, only the utility model, the protection scope of the utility model are not limited to
This, anyone skilled in the art can become apparent in the technical scope that the utility model discloses
Technical solution simple change or equivalence replacement each fall in the protection scope of the utility model.
Claims (3)
1. a kind of cryogenic material Mechanics Performance Testing attemperator, it is characterised in that: including cooling chamber (1), computer (2) and liquid
Nitrogen volatilizer (3), the cooling chamber (1) are equipped with first temperature probe (4) and second temperature probe (5), the cooling chamber (1)
Both ends be respectively equipped with the first inlet end (6), the second inlet end (7), the first outlet side (8), the second outlet side (9), the meter
Calculation machine (2) is connected by temperature feedback route (10) and first temperature probe (4), and the cooling chamber (1) is equipped with the first outlet side
(8) side is connected by the first heater circuit (11) and computer (2), and the cooling chamber (1) is equipped with the second outlet side (9)
Side by the second heater circuit (12) and computer (2) connection, first inlet end (6) respectively with liquid nitrogen volatilizer (3),
Computer (2) connection, second inlet end (7) connect with liquid nitrogen volatilizer (3), computer (2) respectively, first air inlet
It holds between (6) and liquid nitrogen volatilizer (3), computer (2) and second inlet end (7) and liquid nitrogen volatilizer (3), calculating
Autocontrol valve (13) are equipped between machine (2).
2. cryogenic material Mechanics Performance Testing attemperator according to claim 1, it is characterised in that: the cooling chamber
(1) the first cooling circuit (14) and the second cooling circuit (15) are equipped in, above and below the cavity wall of cooling chamber (1) respectively
Equipped with the first adding thermal resistance (16) and the second adding thermal resistance (17), compression bar (18) are respectively equipped at the both ends of the cooling chamber (1).
3. cryogenic material Mechanics Performance Testing attemperator according to claim 2, it is characterised in that: described in cooling chamber
(1) first thermal insulation layer (19) and are respectively equipped between cavity wall and the first adding thermal resistance (16), the second adding thermal resistance (17)
Two thermal insulation layers (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820693292.5U CN208607069U (en) | 2018-05-10 | 2018-05-10 | A kind of cryogenic material Mechanics Performance Testing attemperator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820693292.5U CN208607069U (en) | 2018-05-10 | 2018-05-10 | A kind of cryogenic material Mechanics Performance Testing attemperator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208607069U true CN208607069U (en) | 2019-03-15 |
Family
ID=65661220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820693292.5U Expired - Fee Related CN208607069U (en) | 2018-05-10 | 2018-05-10 | A kind of cryogenic material Mechanics Performance Testing attemperator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208607069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318331A (en) * | 2018-05-10 | 2018-07-24 | 西南交通大学 | A kind of cryogenic material Mechanics Performance Testing attemperator and its operating method |
| CN112014653A (en) * | 2019-05-28 | 2020-12-01 | 山东交通学院 | Electrician electronic product low temperature test ability verification equipment |
-
2018
- 2018-05-10 CN CN201820693292.5U patent/CN208607069U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318331A (en) * | 2018-05-10 | 2018-07-24 | 西南交通大学 | A kind of cryogenic material Mechanics Performance Testing attemperator and its operating method |
| CN112014653A (en) * | 2019-05-28 | 2020-12-01 | 山东交通学院 | Electrician electronic product low temperature test ability verification equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190315 Termination date: 20190510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |