CN205786083U - A kind of freeze-thaw cycle simulation test case - Google Patents
A kind of freeze-thaw cycle simulation test case Download PDFInfo
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- CN205786083U CN205786083U CN201620720784.XU CN201620720784U CN205786083U CN 205786083 U CN205786083 U CN 205786083U CN 201620720784 U CN201620720784 U CN 201620720784U CN 205786083 U CN205786083 U CN 205786083U
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- test
- test casing
- proof box
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- casing
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Abstract
The utility model discloses a kind of freeze-thaw cycle simulation test case, belong to low temperature environment analogue technique field.This proof box includes: test casing, top attemperating unit, bottom attemperating unit and control terminal；Test box house is provided with sample cell and reaction beam；Top attemperating unit includes compressor, condensing unit, heater and fan；Bottom attemperating unit includes support, adds pipe line and oil temperature heat cycles device；Compressor, condensing unit, heater, fan and oil temperature heat cycles device all electrically connect with control terminal.Top attemperating unit and the cooperation of bottom attemperating unit are passed through in this proof box, especially under the disturbance of fan, and stable state going down while the cold and hot temperature difference reaches equilibrium in making proof box, and solve test specimen top layer easy-weathering, the problem causing test error；By the setting of water replanishing device, add simulation verity, improve test accuracy.
Description
Technical field
This utility model relates to low temperature environment analogue technique field, particularly to a kind of freeze-thaw cycle simulation test case.
Background technology
In prior art, during freeze-thaw cycle simulation test case simulation low temperature environment, refrigeration modes uses hot-gas bypass
Technology, when simulating the freezing process of the soil body, it is impossible to the temperature within guarantee test case reaches equilibrium, affects model accuracy；
Test specimen is surface easy-weathering in process of the test, has the biggest difference with the external environment residing for medium under naturalness, especially
It is that the test error caused can be more significantly when simulating than chi greatly.
In sum, freeze-thaw cycle simulation test case of the prior art, there is proof box internal temperature unbalanced, impact
Model accuracy, and test specimen top layer easy-weathering, the problem causing test error.
Utility model content
This utility model embodiment provides a kind of freeze-thaw cycle simulation test case, can solve freeze thawing of the prior art and follow
, there is proof box internal temperature unbalanced in ring simulation test case, affects model accuracy, and test specimen top layer easy-weathering,
The problem causing test error.
This utility model embodiment provides a kind of freeze-thaw cycle simulation test case, including: test casing, top temperature control dress
Put, bottom attemperating unit and control terminal；
Described test box house is provided with sample cell and reaction beam；
Described sample cell is arranged on the bottom of described test casing, and the base plate of described sample cell is described test casing
Base plate；
Described reaction beam is " U " type structure, and including crossbeam and two montants, the both ends of described crossbeam are erected with described two respectively
Bar vertically connects；On the top margin of the two relative side that the both ends of described reaction beam are vertically set on described sample cell respectively；
Described top attemperating unit includes compressor, condensing unit, heater and fan；Described compressor is positioned at described
Proof box external body；Described condensing unit and described heater are arranged in the inner top of described test casing, and institute
State condensing unit and be positioned at described heater top；Described fan is arranged in the internal side wall of described test casing, and described
Fan and described condensing unit are positioned at sustained height；
Described bottom attemperating unit includes support, adds pipe line and oil temperature heat cycles device；Described support is arranged on institute
State bottom sample cell；The described pipe line that adds is located on described support, described in add pipe line in be provided with conduction oil；Described oil temperature
Heat cycles device is arranged on described proof box external body, and described oil temperature heat cycles device adds the two of pipe line with described respectively
Port connects；
Described compressor, described condensing unit, described heater, described fan and described oil temperature heat cycles device are equal
Electrically connect with described control terminal.
It is preferred that this utility model embodiment provides a kind of freeze-thaw cycle simulation test case, also include: water replanishing device, institute
State water replanishing device and include being arranged on the water inlet bottom described sample cell and outlet, and water-level control apparatus；
Described water-level control apparatus is arranged on described proof box external body, and described water-level control apparatus includes storage tank, liquid
Level sensor and water level controller, described storage tank is connected with described sample cell by described water inlet, described liquid level sensor
Being positioned on the inlet pipeline outside described casing, described water level controller is positioned at outside described storage tank；Described liquid level sensor
Electrically connect with described water level controller；Described water level controller electrically connects with power supply.
It is preferred that be provided with porous disc on described support, described porous disc is provided with permeable hole.
It is preferred that offer air inlet and air outlet on the top board of described test casing；The top, inside of described test casing
It is provided with the air inlet pipeline connected with described air inlet on plate, the inner top of described test casing is provided with and described air-out
The air outlet pipeline of mouth connection.
It is preferred that offer cabinet door and observation window on the side plate of described test casing.
It is preferred that be provided with warming plate, the outside of described sample cell on the outer roof of described test casing and lateral wall
Warming plate it is provided with on wall.
It is preferred that described condensing unit uses top row wind fin and tube type condenser.
It is preferred that described heater uses heating rod.
It is preferred that described control terminal uses with the GGD power distribution cabinet touching display screen.
In this utility model embodiment, it is provided that a kind of freeze-thaw cycle simulation test case, this proof box is filled by top temperature control
Put and the cooperation of bottom attemperating unit, especially under the disturbance of fan, while in making proof box, the cold and hot temperature difference reaches equilibrium
Stable state going down, reduces the unfavorable interference to original test specimen, increases the accuracy of lab simulation；And solve at mould
Intend test specimen top layer easy-weathering during freezing-thawing, the problem causing test error, improve relevant ginseng in process of the test
The accuracy of number, makes test data more true, can inherently disclose the relevant parameter of test specimen in frozen-thaw process
Change, provides believable hardware device for cold regions engineering, for there being the high volume storage of constant temperature requirement, and can be in precision be set
Internal temperature is maintained to reach constant and homogeneous.
Accompanying drawing explanation
A kind of freeze-thaw cycle simulation test box structure schematic diagram that Fig. 1 provides for this utility model embodiment.
A kind of freeze-thaw cycle simulation test bottom portion's attemperating unit structural representation that Fig. 2 provides for this utility model embodiment
Figure.
The porous disc structural representation that Fig. 3 provides for this utility model embodiment.
Description of reference numerals:
100-casing, 101-sample cell, 102-reaction beam, 201-support, 202-adds pipe line, 203-oil temperature heat cycles
Device, 300-porous disc, 300-1-permeable hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings, a detailed description of the invention of the present utility model is described in detail, it is to be understood that this
The protection domain of utility model is not limited by detailed description of the invention.
A kind of freeze-thaw cycle simulation test box structure schematic diagram that Fig. 1 provides for this utility model embodiment, Fig. 2 is this reality
A kind of freeze-thaw cycle simulation test bottom portion attemperating unit structural representation provided by new embodiment, Fig. 3 is that this practicality is new
The porous disc structural representation that type embodiment provides.As shown in Figure 1, Figure 2 and Figure 3, this proof box includes: test casing 100, top
Portion's attemperating unit, bottom attemperating unit and control terminal.
Specifically, test casing 100 is internally provided with sample cell 101 and reaction beam 102.
It should be noted that test casing 100, between sample cell 101 and reaction beam 102 all use be welded to connect, it is ensured that
The stability of proof box entirety and rigidity.
It should be noted that the bottom that test casing 100 and sample cell 101 are surrounded by 4mm steel plate and rectangular steel tube
Supporting welding is integrated, and rectangular steel tube inner homogeneous filling foaming agent reaches heat insulating effect, equidistantly lays on base plate
Some channel-section steels, every two channel-section steels opposition is placed, and with channel-section steel length direction vertical welding angle with equal legs, constitutes bottom support, bears
The load that top is transmitted and support porous disc 300, in process of the test, sample can pass through porous disc under the capillarity of self
300 realize automatic water supplement, simulate the freeze thawing model of the recharge of ground water with this；Channel-section steel becomes test casing with square steel pipe welded
The basic framework of 100, basic framework is internal with the rustless steel sidewall panel enclosing of 4mm thickness, basic framework is welded three instead
Power beam 102, can meet different loading requirements, and each position contacted with water uses anti-corrosion to process.
It should be noted that sample cell 101 is arranged on the base plate of test casing 100, and the base plate of sample cell 101 is
The base plate of test casing 100.
It should be noted that reaction beam 102 is " U " type structure, including crossbeam and two montants, the both ends of crossbeam respectively with
Two montants vertically connect；On the top margin of the two relative side that the both ends of reaction beam 102 are vertically set on sample cell 101 respectively.
It should be noted that be the loading requirement meeting different tests, it is further applied load using reaction beam as to test model
The strong point of Shi Fanli, is reached test specimen by hydraulic jack and reaction beam 102 by load plate by the load of test requirements document, test
During, can be according to test method, the diverse location in proof box applies different load.Test specimen is exactly test sample, gives
The when that sample applying power, needing by placing a flat board at sample top, jack applies power to reaction beam, by power
Interaction is passed on test specimen, so can control the size of applying power.
It is preferred that offer air inlet and air outlet on the top board of test casing 100；The inner top of test casing 100
On be provided with the air inlet pipeline connected with air inlet, the inner top of test casing 100 is provided with going out of connecting with air outlet
Air pipe line.
It should be noted that air inlet pipeline and air outlet pipeline constitute ventilation air interchange system, ventilation air interchange system is except having more
Outside new box house air function, when ambient temperature is higher, the unlatching of butterfly valve additionally aids test chamber internal temperature and raises, because of
This has the electric butterfly valve that heating compensation effect, air inlet and air outlet dispose concurrently, controls to open and close by GGD power distribution cabinet.
It is preferred that offer cabinet door and observation window on the side plate of test casing 100.
It should be noted that the door of proof box is as the passage imported and exported, it is easiest to test indoor environment is produced interference
And cause energy waste, so selecting the goalkeeper that a kind of good airproof performance, low-temperature resistance and heat insulation effect are good is the key designed.For
Playing good thermal and insulating performance, room door uses both sides identical with building enclosure to be surrounded by the polyurethane thermal insulation board of iron sheet,
Inside Men, rubber ring is set with at test chamber wall contacts, to reduce the exchange of indoor and outdoor heat.
It should be noted that observation window disposes the position of distance ground 1.5m opposite the door, facilitate viewing test chamber interior
Environment, observation window uses dual-layer vacuum glass, and glass outer uses electrothermal film glass, to avoid the formation of condensation and frost.
It is preferred that be provided with warming plate, the lateral wall of sample cell 101 on the outer roof of test casing 100 and lateral wall
On be provided with warming plate.
It should be noted that warming plate mainly uses the thick poly-ammonia rigid foam of 150mm, and wrap up 0.5mm in outside
The rustless steel of thickness, polyurethane foam has good performance, especially its density is little, specific strength is high, heat conductivity is low, water-fast,
Heat-resisting, be the thermal insulation of a kind of high-quality, insulation, cold insulation material, the adjacent polyester sheet of casing uses built-in screw splicing, and in
Between gap filling foaming agent, cabinet insulation top board accumbency is on reaction beam and mutual by prefabricated groove with side warming plate
It is engaged mutually.
It is preferred that be provided with porous disc 300 on support 201, porous disc 300 is provided with permeable hole 300-1.
It should be noted that support 201 be made up of steel pipe hold thing skeleton, support 201 and test casing 100 base plate it
Between have one layer of space, the water in water replanishing device flows into this space, for moisturizing process.
Specifically, top attemperating unit includes compressor, condensing unit, heater and fan；Compressor is positioned at test
Casing 100 is outside；Condensing unit and heater are arranged at testing in the inner top of casing 100, and condensing unit is positioned at
Heater top；Fan is arranged in the internal side wall of test casing 100, and fan is positioned at sustained height with condensing unit.
It is preferred that condensing unit uses top row wind fin and tube type condenser.
It is preferred that heater uses heating rod.
It should be noted that disposing four desk fans with wind fin and tube type condenser with height inside experimental box.Fan is permissible
After the temperature making test chamber top is sufficiently mixed, transmit the most gradually downward.Strengthen the convection current of case body temperature, whole in making casing
Temperature convergence equalizes.
It should be noted that top refrigeration uses top row wind fin and tube type condenser, the refrigerating capacity of outside condenser passes through wind
Fin and tube type condenser coordinates fan going down, and top firing uses three groups of heating rods, three groups of heating rods can try according to difference
Demand of testing individually opens and closes, and when simulation medium Unidirectional Freezing is tested, the condenser on casing top the most constantly carries cold air, makes
In medium, freezing front constantly moves down；When the two-way thawing of simulation medium is tested, the heating rod at test chamber top can heat top
Air and downward transfer of heat, coordinate bottom board system, make sample realize two-way thawing.
Specifically, bottom attemperating unit includes support 201, adds pipe line 202 and oil temperature heat cycles device 203；Support
201 are arranged on bottom sample cell 101；Add pipe line 202 to be located on support 201, in adding pipe line 202, be provided with conduction oil；
It is outside that oil temperature heat cycles device 203 is arranged on test casing 100, oil temperature heat cycles device 203 respectively with add pipe line 202
Two-port connect.
It should be noted that punch on the support steel tank of support 201, add pipe line 202 and wear through the hole on support 201
It is located at and adds on pipe line 202.
It should be noted that oil temperature heat cycles device 203 includes oil heater and circulating pump, add inside pipe line
Conduction oil, is heated to oil temperature by oil heater, and circulating pump makes the oil of heating circulate inside pipeline, and then feedwater is heated.
Specifically, water replanishing device includes being arranged on the water inlet bottom sample cell 101 and outlet, and water lev el control dress
Put；It is outside that water-level control apparatus is arranged on test casing 100, and water-level control apparatus includes storage tank, liquid level sensor and water level
Controller, storage tank is connected with sample cell 101 by water inlet, and liquid level sensor is positioned on the inlet pipeline outside casing, water
Level controller is positioned at outside storage tank.
It should be noted that water-level control apparatus is arranged on test casing 100 outside, water-level control apparatus includes water storage
Case, liquid level sensor and water level controller, storage tank is connected with water inlet.
It should be noted that water pipe uses the stainless steel tube of a diameter of 25mm.
It should be noted that storage tank inner port uses ball-cock assembly, the water yield in automatic compensation box body can be realized, in base plate
Water level connects electromagnetic valve by outer liquid level sensor, controls the upper and lower bound of liquid level sensor height, and cooperation electromagnetic valve can
With the amount in supply bottom board pool automatically, the supply of the different level of ground water of simulation.
It should be noted that water pipe is arranged in below the permeable top board of experimental box, water-level control apparatus is at laboratory
Outside, attemperating unit is to be controlled by a GGD power distribution cabinet outside experimental box.
It should be noted that compressor, condensing unit, heater, fan, liquid level sensor and oil temperature heat cycles dress
Put 203 all to electrically connect with control terminal；Liquid level sensor electrically connects with water level controller, and water level controller directly connects with power supply
Connect.
Use with the GGD power distribution cabinet touching display screen it should be noted that control terminal, can touch on display screen
Inputting the parameters that process of the test requires, the collection of data, real-time display all have control of intelligent terminal to complete, simultaneously can root
According to test chamber outside condenser operation irregularity Realtime Alerts, automatically protect during low pressure, on the premise of ensureing to run safety, maximum
The life-span extending each equipment of limit.
A kind of freeze-thaw cycle simulation test case that this utility model embodiment provides, its principle is to pass through compressor cycle
Cold distributed by top row wind fin and tube type condensing unit, in experimentation, in order to simulate medium under naturalness temperature become
Changing, at two groups of fans of proof box positioned inside, condensing unit the heat that the cold distributed and heater distribute is via wind
Agitation, downward stable state is transferred to dielectric surface, reduces the impact on test specimen surface.Top row wind fin and tube type condensing unit freezes
With fan, the combination of heater, it is ensured that temperature from top to bottom stable state transmission in process of the test.According to test requirements document and precision,
Be automatically obtained inside adds refrigeration heat.
In sum, a kind of freeze-thaw cycle simulation test case that this utility model embodiment provides, this proof box is by top
Portion's attemperating unit and the cooperation of bottom attemperating unit, especially under the disturbance of fan, in making proof box, the cold and hot temperature difference reaches equal
Stable state going down while weighing apparatus, reduces the unfavorable interference to original test specimen, increases the accuracy of lab simulation；And solve
Determined simulation freezing-thawing during test specimen top layer easy-weathering, the problem causing test error, improve process of the test
The accuracy of middle relevant parameter, makes test data more true, can inherently disclose the relevant parameter of test specimen in freeze thawing
During change, for cold regions engineering provide believable hardware device, for there being the high volume storage of constant temperature requirement, can set
Internal temperature is maintained to reach constant and homogeneous in putting precision.
Only several specific embodiments of the present utility model disclosed above, but, this utility model embodiment not office
Being limited to this, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (9)
1. a freeze-thaw cycle simulation test case, it is characterised in that including: test casing (100), top attemperating unit, bottom
Attemperating unit and control terminal；
Described test casing (100) is internally provided with sample cell (101) and reaction beam (102)；
Described sample cell (101) is arranged on the bottom of described test casing (100), and the base plate of described sample cell (101) is
The base plate of described test casing (100)；
Described reaction beam (102) is " U " type structure, and including crossbeam and two montants, the both ends of described crossbeam are respectively with described two
Montant vertically connects；The both ends of described reaction beam (102) are vertically set on the two relative side of described sample cell (101) respectively
Top margin on；
Described top attemperating unit includes compressor, condensing unit, heater and fan；Described compressor is positioned at described test
Casing (100) is outside；Described condensing unit and described heater are arranged at the inner top of described test casing (100)
On, and described condensing unit is positioned at described heater top；Described fan is arranged on the private side of described test casing (100)
On wall, and described fan is positioned at sustained height with described condensing unit；
Described bottom attemperating unit includes support (201), adds pipe line (202) and oil temperature heat cycles device (203)；Described
Frame (201) is arranged on described sample cell (101) bottom；The described pipe line (202) that adds is located on described support (201), described
It is provided with conduction oil in adding pipe line (202)；Described oil temperature heat cycles device (203) is arranged on described test casing (100)
Outside, described oil temperature heat cycles device (203) is connected with the described two-port adding pipe line (202) respectively；
Described compressor, described condensing unit, described heater, described fan and described oil temperature heat cycles device (203)
All electrically connect with described control terminal.
2. proof box as claimed in claim 1, it is characterised in that also include that water replanishing device, described water replanishing device include arranging
At water inlet and the outlet of described sample cell (101) bottom, and water-level control apparatus；
It is outside that described water-level control apparatus is arranged on described test casing (100), and described water-level control apparatus includes storage tank, liquid
Level sensor and water level controller, described storage tank is connected with described sample cell (101) by described water inlet, and described liquid level passes
Sensor is positioned on the inlet pipeline that described casing (100) is outside, and described water level controller is positioned at outside described storage tank；Described liquid
Level sensor electrically connects with described water level controller；Described water level controller electrically connects with power supply.
3. proof box as claimed in claim 2, it is characterised in that be provided with porous disc (300), institute on described support (201)
State and on porous disc (300), be provided with permeable hole (300-1).
4. proof box as claimed in claim 1, it is characterised in that offer air intake on the top board of described test casing (100)
Mouth and air outlet；It is provided with, in the inner top of described test casing (100), the air inlet pipeline connected with described air inlet, described
It is provided with, in the inner top of test casing (100), the air outlet pipeline connected with described air outlet.
5. proof box as claimed in claim 1, it is characterised in that offer casing on the side plate of described test casing (100)
Door and observation window.
6. proof box as claimed in claim 1, it is characterised in that on the outer roof of described test casing (100) and lateral wall
It is provided with warming plate, the lateral wall of described sample cell (101) is provided with warming plate.
7. proof box as claimed in claim 1, it is characterised in that described condensing unit uses top row wind fin and tube type condenser.
8. proof box as claimed in claim 1, it is characterised in that described heater uses heating rod.
9. proof box as claimed in claim 1, it is characterised in that described control terminal uses with the GGD touching display screen
Power distribution cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720784.XU CN205786083U (en) | 2016-06-25 | 2016-06-25 | A kind of freeze-thaw cycle simulation test case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720784.XU CN205786083U (en) | 2016-06-25 | 2016-06-25 | A kind of freeze-thaw cycle simulation test case |
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| Publication Number | Publication Date |
|---|---|
| CN205786083U true CN205786083U (en) | 2016-12-07 |
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| CN201620720784.XU Expired - Fee Related CN205786083U (en) | 2016-06-25 | 2016-06-25 | A kind of freeze-thaw cycle simulation test case |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095337A (en) * | 2019-04-30 | 2019-08-06 | 四川大学 | The chamber of test specimen mechanical property under a kind of analog freeze thawing temperature loading |
| CN110133218A (en) * | 2019-05-15 | 2019-08-16 | 水利部交通运输部国家能源局南京水利科学研究院 | The cold wet dry freeze of area's canal for water conveyance melts circular centrifugal simulation system and its analogy method |
-
2016
- 2016-06-25 CN CN201620720784.XU patent/CN205786083U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095337A (en) * | 2019-04-30 | 2019-08-06 | 四川大学 | The chamber of test specimen mechanical property under a kind of analog freeze thawing temperature loading |
| CN110133218A (en) * | 2019-05-15 | 2019-08-16 | 水利部交通运输部国家能源局南京水利科学研究院 | The cold wet dry freeze of area's canal for water conveyance melts circular centrifugal simulation system and its analogy method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170625 |