CN208012944U - A kind of middle large scale test specimen cryogenic box - Google Patents
A kind of middle large scale test specimen cryogenic box Download PDFInfo
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- CN208012944U CN208012944U CN201721602286.6U CN201721602286U CN208012944U CN 208012944 U CN208012944 U CN 208012944U CN 201721602286 U CN201721602286 U CN 201721602286U CN 208012944 U CN208012944 U CN 208012944U
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Abstract
The utility model discloses a kind of middle large scale test specimen cryogenic boxes, including cold insulation cylinder, Cold-keeping Layer, incubator, cold insulation cover component, test specimen hanging holder set, outline border, drain pipe valve module, cylinder link block；The cold insulation cover assembly set, can be around the cold insulation barrel body rotation at the top of the cold insulation cylinder；Temperature sensor, stirring rod, cooling medium tube assembly, head cover handle are designed on the cold insulation cover component, it can be achieved that the temperature and liquid level controlling of coolant liquid and stirring；Test specimen lifting is fixed on the test specimen hanging holder set lower part positioned at the cold insulation cover component center, is inserted in the cooling medium of the cold insulation cylinder and cools down；The Cold-keeping Layer coats the cold insulation cylinder, and the two is inlaid in together in the incubator；The incubator is inlaid in the outline border.
Description
Technical field
This application involves a kind of steel and welding joint mechanical property experiment device more particularly to a kind of middle large scale examinations
Part cryogenic box, for steel and the detection of welding point cryogenic mechanics performance and experiment.
Background technology
It is by the full-scale or close full-scale of measurement steel construction base material, wlding and welding point to drop hammer with experiments such as CTOD
Crack tip opening displacement under the nil-ductility temperature and regulation low temperature of test specimen, to more acurrate its low-temperature resistance brittleness of evaluation
The common method of fracture property.Test specimen is down to the important step that regulation low temperature is these experiments, due to using full-scale or close
Its specification of full-scale test specimen is larger.
The cooling of test specimen is mainly using the cryogenic box (slot) that test specimen is submerged into the coolant liquid equipped with certain volume and temperature
The method of middle appropriate time.
There are two main classes for existing cryogenic box (slot), and one kind is simple rectangle cryostat, basic full top cover-opening structure, and one
As low temperature (be more than -60 DEG C) when made of low heat conductivity organic board bonding or thermofussion welding, cryogenic temperature (- 60~-196 DEG C)
Folder thermal insulation material makes that (processing and fabricating program is cumbersome, it is desirable that high, otherwise cold insulation effect is not among low-temperature steel plate inside and outside Shi Caiyong
It is good), in use, head cover is removed, test specimen is put into slot, cooling medium is added, and allocate coolant temperature, then, buckles
Closure head insulation cools down, and after reaching the stipulated time, raises head cover, testing crew hand or tool, which deeply cool down, takes test specimen in medium
Go out and accordingly tested, have the advantages that cost is relatively low, but (cold) design of case (slot) heat preservation is not perfect, is operated during experiment
Person must above complete open larger cooling-liquid level or among operate, have that loss of refrigeration capacity is big, cooling medium usage amount greatly and
Loss is high, and working specification is poor, the big deficiency of frostbite risk.Another kind of is professional cryostat, equipment, is produced for specialized vendor,
It is divided into two kinds of compressor cooling (> -100 DEG C) and liquid nitrogen refrigerating (≤- 100 DEG C) according to the difference of minimum temperature in use, has
There is the advantages that temperature automatically controlled, temperature control is accurate, but equipment is suitable for the test of the accurate devices such as low-temperature sensor or Charpy impact mostly
Experiment small specimen (10*10*55mm), the equipment of large scale test specimen needs to customize in being applicable in, and cost is high, meets 0~-196 DEG C of examinations
2 kinds of equipment need to be configured by testing temperature range generally, and suitable for continuously carrying out the laboratory of a large amount of low-temperature tests for a long time, otherwise equipment makes
It is less economical with maintenance cost height.
Utility model content
The utility model provides a kind of middle large scale test specimen cryogenic box, with solve current high equipment cost,
Technical problem.
In order to solve the above technical problems, the utility model provides a kind of middle large scale test specimen cryogenic box, including：
Cold insulation cylinder (1), Cold-keeping Layer (2), incubator (3), cold insulation cover component (4), test specimen hanging holder set (5), outline border
(6), drain pipe valve module (7), cylinder link block (8)；
The cold insulation cover component (4) is sleeved on the top of the cold insulation cylinder (1), can be rotated around the cold insulation cylinder (1)；
Temperature sensor (42), stirring rod (43), cooling medium tube assembly (44) and head cover are designed on the cold insulation cover component (4)
Handle (45) is, it can be achieved that the temperature and liquid level controlling of coolant liquid and stirring；Test specimen lifting is fixed on positioned at the cold insulation cover group
Test specimen hanging holder set (5) lower part at part (4) center, is inserted in the cooling medium of the cold insulation cylinder (1) and cools down；
The Cold-keeping Layer (2) coats the cold insulation cylinder (1), and the two is inlaid in together in the incubator (3)；
The incubator (3) is inlaid in the outline border (6).
Preferably, the cold insulation cylinder (1) is vertical and cylindrical structure；
The cold insulation cylinder (1) includes：Low temperature lengths of steel pipes (11), cylinder bottom plate (12), baffle ring (13), cylinder fixed ear
(14) and pipe fitting (15)；
Wherein, the cylinder bottom plate (12) and the baffle ring (13) are welded in the bottom end of the low temperature lengths of steel pipes (11) respectively
And external wall of upper portion, a pair of cylinder fixed ear (14) about low temperature lengths of steel pipes (11) axisymmetrical, and respectively with the low temperature
Lengths of steel pipes (11) outer wall and the welding of the baffle ring (13) lower surface, both ends are placed in institute to seal the pipe fitting (15) of pipe screw thread
State in the tube wall trepanning of low temperature lengths of steel pipes (11) lower part and with tube wall two-sided welding.
Preferably, the incubator (3) uses rigid foam thermal insulation material, and center has and the cold insulation cylinder (1) and institute
State the ladder blind hole of cold insulation cover component (4) diameter and matched.
Preferably, the cold insulation cover component (4) includes：Cold insulation cylinder head cover (41), temperature sensor (42), stirring rod
(43), cooling medium tube assembly (44) and head cover handle (45).
Preferably, the circular upper surface of the cold insulation cylinder head cover (41) is provided with concentric boss, and lower surface is provided with together
Heart concave station, is made of low Heat Conduction Material, and the cold insulation cylinder head cover (41) is provided centrally with central through hole, the cold insulation cylinder head cover
(41) upper surface is provided with temperature sensor tapped through hole, cooling medium tube assembly installation through-hole, head cover handle installing blind；
The temperature sensor (42) is the Multi probe temperature sensor that probe is provided in different height；
The stirring rod (43) welds oppositely oriented leaf production, top using the inside and outside cambered surface of arc low-temperature steel lath
It is welded with fixed plate；
The cooling medium tube assembly (44) is formed by connecting by the installing handle on top and the medium tube of lower part, low Heat Conduction Material
The installing handle of making is ladder shaft-like, and installing handle upper design is handle, and bottom cylinder is used for connecting medium tube, medium tube
Thin-walled low temperature steel pipe manufacturing, middle part are designed with the axial elongated slot symmetrically penetrated through, and bottom end is designed as angular cut, and outer surface of tube wall is carved
Erosion has Liquid level scale slot；
The temperature sensor (42), the cooling medium tube assembly (44) and the head cover handle (45) pass through respectively
The temperature sensor tapped through hole of the cold insulation cylinder head cover (41), the cooling medium tube assembly installation through-hole, the top
Lid handle installing blind is vertically mounted on the cold insulation cylinder head cover (41), and the stirring rod (43) is relative to cold insulation cylinder top
The axially vertical, radial of lid (41) has certain inclination angle, and cold insulation cylinder head cover (41) the concave station inner surface is fixed on screw.
Preferably, test specimen hanging holder set (5) includes：Flap seat (51), collet (52), holding screw (53) and carrying handle
(54)。
Preferably, the flap seat (51) is processed using low Heat Conduction Material, is that ladder is round table-like, bottom cylindrical center is provided with
Central blind hole；The collet (52) uses low-temperature steel welding production, and lower part is trough-shaped base, trough-shaped base two sides centre position
Position on the lower side is designed with perforation screw hole, and trough-shaped base upper surface center is welded with connection pipe；The circle on collet (52) top
Pipe is inserted into the central blind hole of flap seat (51) bottom, is fixed with bolt, the holding screw (53) is screwed in collet (52) flute profile
In the perforation screw hole of base side, the carrying handle (54) is fixed on the flap seat (51) top surface with screw.
Preferably, the top design of the outline border (6) has 2 removable fixed links.
Preferably, the cylinder link block (8) is made of low Heat Conduction Material.
Preferably, the following barrel of the baffle ring (13) and bottom plate of the cold insulation cylinder (1) are wrapped with the Cold-keeping Layer (2)
It covers, and in the ladder blind hole at the incubator (3) center；
The incubator (3) is flush-mounted in the outline border (6)；
2 cylinder link blocks (8) respectively with 2 cylinder fixed ears (14) of the cold insulation cylinder (1) and institute
2 removable fixed links for stating outline border (6) are connected with screw, and the cold insulation cylinder (1) is made to be fixed in the outline border (6)；
The cold insulation cylinder head cover (41) of the cold insulation cover component (4) is assemblied in the ladder at the incubator (3) center
Blind hole top, and be set on the baffle ring (13) above barrel of the cold insulation cylinder (1), the concave station of the cold insulation cylinder head cover
Inner surface is pressed in cold insulation cylinder (1) upper edge, and the temperature sensor (42) of the cold insulation cover component (4) described stirs
Mix bar (43), the cooling medium tube assembly (44) is inserted in the cold insulation cylinder (1)；Test specimen hanging holder set (5) inserting
In the central through hole of the cold insulation cylinder head cover (41), boss lower surface is pressed on cold insulation cylinder top at the top of the flap seat (51)
It covers on the concentric boss of (41)；The cold insulation cover can be made by pushing and pulling the head cover handle (45) of the cold insulation cover component (4)
Component (4) and the test specimen hanging holder set (5) being mounted thereon rotate around the cold insulation cylinder (1)；The drain pipe valve group
Part (7) is threadedly coupled with the pipe fitting (15) of the cold insulation cylinder (1) using seal pipe.
By one or more technical solution of the utility model, the utility model has the advantages that or excellent
Point：
The utility model discloses a kind of middle large scale test specimen cryogenic box, including cold insulation cylinder, Cold-keeping Layer, incubator,
Cold insulation cover component, test specimen hanging holder set, outline border, drain pipe valve module, cylinder link block；The cold insulation cover assembly set is in institute
The top of cold insulation cylinder is stated, it can be around the cold insulation barrel body rotation；Temperature sensor, stirring are designed on the cold insulation cover component
Bar, cooling medium tube assembly, head cover handle are, it can be achieved that the temperature and liquid level controlling of coolant liquid and stirring；Test specimen lifting is fixed on
Test specimen hanging holder set lower part positioned at the cold insulation cover component center, is inserted in the cooling medium of the cold insulation cylinder and drops
Temperature；The Cold-keeping Layer coats the cold insulation cylinder, and the two is inlaid in together in the incubator；The incubator is inlaid in described
In outline border.The utility model is simple in structure sturdy and durable, and processing and fabricating is easy, and cold insulation effect is good, and processing safety is high, convenient for rule
Model operates, and cost is not high, can reduce cooling medium consumption and refrigerating loss amount, improves its usage economy, can be good at meeting
Low-temperature test is irregular a large number of experiments in short-term, and 0~-196 DEG C of test temperature, tests safety and Regulatory requirements are higher,
Ask the requirement of the laboratory of experiment good economy performance.
0~-196 DEG C of the test temperature of the utility model, subjects are mostly the test specimens such as weld seam, base material and wlding, examination
Test that safety and Regulatory requirements are high, moderate cost and the good cryogenic box (slot) of usage economy.
Description of the drawings
Fig. 1 is the utility model partial cutaway shaft side figure；
Fig. 2 is the cold insulation cylinder shaft side figure of the utility model；
Fig. 3 is the incubator shaft side figure of the utility model；
Fig. 4 is the cold insulation cover component shaft side figure of the utility model；
Fig. 5 is the cold insulation cylinder head cover shaft side figure of the cold insulation cover component of the utility model；
Fig. 6 is the stirring rod shaft side figure of the cold insulation cover component of the utility model；
Fig. 7 is the cooling medium tube assembly axis side schematic diagram of the cold insulation cover component of the utility model；
Fig. 8 is the test specimen hanging holder set shaft side figure of the utility model；
Fig. 9 is the outline border shaft side figure of the utility model；
Figure 10 is the installation axle side partial cutaway schematic diagram of the utility model；
Figure 11 is the cooling test specimen scheme of installation of the utility model；
In figure, 1. cold insulation cylinders, 2. Cold-keeping Layers, 3. incubators, 4. cold insulation cover components, 5. test specimen hanging holder sets, outside 6.
Frame, 7. drain pipe valve modules, 8. cylinder link blocks, 11. low temperature lengths of steel pipes, 12. cylinder bottom plates, 13. baffle rings, 14. cylinders are fixed
Ear, 15. pipe fittings, 41. cold insulation cylinder head covers, 42. temperature sensors, 43. stirring rods, 44. cooling medium tube assemblies, 45. head covers
Handle, 51. flap seats, 52. collets, 53. holding screws, 54. carrying handles, large scale test specimen cryogenic box in 100., 101. examinations
Part, 102. drop weight test holders, 103. allen wrenches.
Specific implementation mode
The purpose of this utility model is：A kind of middle large scale test specimen cryogenic box is provided, 0~-196 DEG C of Applicable temperature,
Simple in structure sturdy and durable, making easy to process, cold insulation effect is good, and processing safety is high, is convenient for standard operation, and cost compared with
It is low, the good economy performance when non-long-term a large amount of continuous low temperature experiments use.
Embodiment 1：
To meet drop weight test test specimen (long 360 or 130mm, wide 90 or 50mm, thickness≤50mm) 0~-196 DEG C of range of cooling
Middle large scale test specimen cryogenic box for, the utility model is described in further detail.
Refering to fig. 1.Large scale test specimen includes with cryogenic box in the utility model：Cold insulation cylinder 1, Cold-keeping Layer 2, incubator 3,
Cold insulation cover component 4, test specimen hanging holder set 5, outline border 6, drain pipe valve module 7, cylinder link block 8.
Refering to Fig. 2.The cold insulation cylinder 1 is vertical and cylindrical welding structure, including：219 × 3 × 450mm of φ low temperature is difficult to understand
Family name's body stainless steel pipeline section 11, low temperature austenitic stainless steel cylinder bottom plate 12, stainless steel blocker ring 13,14 and of stainless steel cylinder fixed ear
Low temperature Austenitic stainless steel pipe connector 15, each component is organized between each other to be welded；Cylinder bottom plate 12 and baffle ring 13 are welded in low respectively
The bottom end of warm lengths of steel pipes 11 and external wall of upper portion, a pair of of cylinder fixed ear 14 about 11 axisymmetrical of low temperature lengths of steel pipes and respectively with it is low
11 outer wall of warm lengths of steel pipes and the welding of 13 lower surface of baffle ring, both ends are that the pipe fitting 15 of sealing pipe screw thread is placed under low temperature lengths of steel pipes 11
In the tube wall trepanning in portion and with tube wall two-sided welding.
Refering to Fig. 3.Incubator 3 uses rigid foam thermal insulation material, such as hard polystyrene cellular insulant, center
There are the ladder blind hole 31 with cold insulation cylinder 1 and cold insulation cover component 4 diameter and matched, lower part that drain pore 32 is set.
Refering to Fig. 4~7.Cold insulation cover component 4 includes：Cold insulation cylinder head cover 41, temperature sensor 42, stirring rod 43, cooling
Medium tube assembly 44 and head cover handle 45, each component assemble.
The circular upper surface of the cold insulation cylinder head cover 41 has concentric boss 411, lower surface to have concentric concave station 412, uses
Low Heat Conduction Material makes.The cold insulation cylinder head cover 41 is provided centrally with central through hole 413, the upper surface of the cold insulation cylinder head cover 41
It is blind to be provided with 415, the 2 head cover handle installations of the cooling medium tube assembly installation through-hole of 1 temperature sensor tapped through hole 414,1
Hole 416.
The temperature sensor 42 is the Multi probe temperature sensor that probe is provided in different height；For example, columnar
Temperature sensor 42 is respectively to set three probe temperature sensors of a probe in high, normal, basic three positions；Stirring rod 43 uses arc
Low-temperature steel lath 432 and internal and external cambered surface weld oppositely oriented blade 433 and make, and top is welded with fixed plate 431；1 cooling Jie
Matter tube assembly 44 is formed by connecting by the installing handle 441 on top and the medium tube 4 of lower part, the installing handle 441 that low Heat Conduction Material makes
For ladder shaft-like, 441 upper design of installing handle is handle, and for bottom cylinder for connecting medium tube 4, medium tube 4 is low using thin-walled
Warm steel pipe manufacturing, middle part are designed with the axial elongated slot symmetrically penetrated through, and bottom end is designed as 60 ° of angular cut, and outer surface of tube wall etches
There is Liquid level scale slot；
Temperature sensor 42, cooling 4 component 44 of medium tube and 2 head cover handles 45 pass through the institute of cold insulation cylinder head cover 41 respectively
State temperature sensor tapped through hole 414, the cooling medium tube assembly installation through-hole 415, the head cover handle installing blind 416
Right angle setting is fixed on cold insulation cylinder head cover 41, and 2 stirring rods 43 are axially vertical relative to cold insulation cylinder head cover 41, radial direction has
Certain inclination angle (such as 45 °), and about 41 axisymmetrical of cold insulation cylinder head cover, table in 41 concave station of cold insulation cylinder head cover is fixed on screw
Face.
Refering to Fig. 8.Test specimen hanging holder set 5 includes：Flap seat 51, collet 52, holding screw 53 and carrying handle 54；Flap seat 51
It is processed using low Heat Conduction Material, is that ladder is round table-like, there is blind hole in bottom cylindrical center；Collet 52 uses low-temperature steel welding production,
Lower part is trough-shaped base, and trough-shaped base two sides centre position position on the lower side is designed with 2 perforation M6 screw hole spacing 20mm, flute profile
Base upper surface center is welded with connection pipe；The pipe on 52 top of collet is inserted into the central blind hole of 51 bottom of flap seat, with M10 spiral shells
Bolt is fixed, and 2 M6 holding screws 53 are screwed in the perforation screw hole of 52 trough-shaped base side of collet, and carrying handle 54 is solid with screw
Due to 51 top surface of flap seat.
Refering to Fig. 9 and Fig. 1.The top design of outline border 6 has 2 removable fixed links；Cylinder link block 8 uses low heat conduction
Material makes.
Refering to 1~9.13 or less the barrel of baffle ring and bottom plate of cold insulation cylinder 1 are coated with Cold-keeping Layer 2 and wrap up in moisture-proof glass cloth outside,
And in the ladder blind hole 31 at 3 center of incubator；Incubator 3 is flush-mounted in outline border 6；2 cylinder link blocks 8 respectively with
2 cylinder fixed ears 14 of cold insulation cylinder 1 are connected with 2 of outline border 6 removable fixed links 9 with screw, and cold insulation cylinder 1 is made to fix
In outline border 6；The cold insulation cylinder head cover 41 of cold insulation cover component 4 crouches on 31 top of ladder blind hole at 3 center of incubator, and is set in
On 13 or more the barrel of baffle ring of cold insulation cylinder 1, the concave station inner surface of cold insulation cylinder head cover is pressed in 1 upper edge of cold insulation cylinder, cold insulation cover
The temperature sensor 42 of component 4, stirring rod 43, cooling medium tube assembly 44 are inserted in cold insulation cylinder 1；Test specimen hanging holder set 5 is inserted
In central through hole 413 loaded on cold insulation cylinder head cover 41,51 top boss lower surface of flap seat is pressed on the concentric of cold insulation cylinder head cover 41
On boss 411；The head cover handle 45 of push-and-pull cold insulation cover component 4 can be such that cold insulation cover component 4 and the test specimen being mounted thereon hangs
Frame component 5 is rotated around cold insulation cylinder 1；Drain pipe valve module 7 is threadedly coupled with the pipe fitting 15 of cold insulation cylinder 1 using seal pipe.
In order to make the application the technical staff in the technical field be more clearly understood that the application, below in conjunction with the accompanying drawings,
Technical scheme is described in detail by specific embodiment.
Sketch the operation principle of the middle large scale test specimen cryogenic box of the utility model.Refering to fig. 1~10.
In order to meet 0~-196 DEG C of test temperature requirements, the container that the utility model contains cooling medium uses low-temperature steel,
According to the work characteristics and cost-effectiveness requirement of laboratory, use manually cooling with dry ice or liquid nitrogen and ethyl alcohol etc. in cryogenic box
Medium allocates coolant liquid cooling, with with the working method purchased with allotment.Cold insulation cylinder is welded using single wall vertical and cylindrical
Structure, be because with use double-walled low-temperature steel plate press from both sides insulating layer rectangular box structure cryogenic box compared with, under same volume,
The drum surface product and material utilization amount of the structure can reduce 20% or more, can reduce loss of refrigeration capacity caused by cryogenic box ontology；It protects
Cold cylinder inner section product is greatly reduced, and after test specimen is put into coolant liquid, liquid level raising is more, only needs less coolant liquid that can make test specimen
It is submerged entirely, reduces cooling medium consumption；Cylinder can be used national standard lengths of steel pipes one end sealing closure plate and realize, processing is simple, firm
It is durable, it is at low cost, and the destruction of the welding of low-temperature steel wall or seaming operation to insulating layer when cryogenic box makes is avoided, to influence
The problem of its cold insulation effect.For test temperature mainly for 0 DEG C or less low temperature, cold insulation is fixed using low temperature steel cylinder outer cladding
Layer (wrapping up in or apply outside damp-proof layer) is flush-mounted in the double-decked insulation in insulating layer (incubator) again, and Cold-keeping Layer uses low heat conduction system
Number and hydroscopicity special pipeline cold insulation material, insulating layer (incubator) using low cost common thermal insulation material, have both heat preservation,
The effect of Cold-keeping Layer protective layer and barrel support frame, this structure design have the cold insulation effect of cryogenic box good, and loss of refrigeration capacity is few,
Coolant medium consumption is reduced, processing and fabricating is easy, and quality is high, light-weight, at low cost advantage.
In cold insulation cover component, in order to control coolant temperature, and due in cold insulation cylinder coolant liquid depth it is larger, may
Can occur two position temperature difference when coolant liquid is allocated or during use, influence the Quick uniform cooling of test specimen, be provided with
Probe is located at the Multi probe temperature sensor of different depth, for monitoring coolant temperature and two position temperature difference；It allocates cold
But liquid and when two position temperature difference occurs in coolant liquid, coolant temperature need to be made quickly by stirring reduces and it is uniform surely
It is fixed, it devises to drive by switch cold insulation cylinder head cover and is fixed on the stirring rod that its underpart is inserted in coolant liquid and turns around cold insulation cylinder
The agitating device of pendulum, this is simple and compact for structure, reliability and durability, at low cost；It is inclined in order to adjust the little temperature of coolant liquid and liquid level
Difference is provided with cooling medium tube assembly installation through-hole and cooling medium tube assembly on cold insulation cylinder head cover, various cold for filling
But medium (dry ice liquid nitrogen or ethyl alcohol etc.) or coolant liquid, using extracting, cooling medium tube assembly is slotting to be taken for solid dielectric (dry ice) filling
After a certain amount of medium, then its mode for turning back to, liquid medium filling pass through cooling medium tube using cooling medium tube assembly is extracted
The direct dosing method of component mounting hole；It is improper in order to avoid there is coolant injection amount, it is very few to cause that test specimen influence is flooded
Test specimen cooling velocity and effect excessively cause spilling to lead to the problem of frostbite security risk and loss, are provided with liquid level and read dress
It sets, the specific design using the medium tube outer surface of tube wall etching liquid level scale slot in cooling medium tube assembly is used and read
Method is similar with Lubricant of Automobile Engine scale.
Due to being designed using vertical and cylindrical, test specimen must be erected in cooling, the utility model in cold insulation cylinder and use
Cold insulation cover component center sets up test specimen hanging holder set and test specimen is hung to the design stood in cold insulation cylinder；On the one hand this design makes examination
Part hanging holder set is the vertical cooling of hanging as test specimen, and is mounted directly transfer tool as cooling front and back test specimen, and test specimen is normal
After warm state installs, operator is not necessarily to contact the test specimen of low temperature in cooling procedure and after cooling, to low temperature test specimen when making experiment
Operate easier, quick, specification and safety；On the other hand when the design makes low-temperature test, entire cryogenic box is only extracting test specimen
When hanging holder set, there is a smaller hole in short-term in top, remaining time is substantially at full closeding state, maximum to avoid
Operator contacts the possibility of cryogenic liquid, improves its safety in utilization, and loss of refrigeration capacity can be greatly decreased.Test specimen hanger group
Test specimen in part hangs vertical simple and compact for structure for its reason of stepping up to determine screw designs, use such design using collet, can subtract
Loss of refrigeration capacity caused by few support type or frame test-piece stand, and be conducive to the fast and reliable assembly and disassembly and transfer of test specimen, in use, only
Limit shallow bore hole (not influencing test result) need to be processed in test specimen one end, test specimen is inserted into collet, this is shallow with holding screw clamping
Hole, you can make test specimen reliably fix, test specimen can be prevented cooling and shift kind of a shrinkage and fall off, when dismounting, make holding screw card
Tight shallow bore hole of abjection, you can detach test specimen hanging holder set.
The utility model installation in the preset implementation and the course of work are sketched, helps to understand the utility model.Ginseng
Read Figure 10 and Figure 11.
With in drop weight test, 360*90*50mm test specimens illustrate for being cooled to -60 and -100 DEG C of experiment one after another.Experiment
Before beginning, temperature sensor 42 is connected and is calibrated with mating temperature display watch or recorder with multicore cable；According to this reality
With in novel middle 100 mating specification of large scale test specimen cryogenic box using the size of working specification and test specimen, quantity and
The range that cools down etc. formulates corresponding operating guiding book, determines the medium size composition of the type and total dosage, each cooling of various cooling media
With the contents such as initial adding amount, coolant liquid initial liquid level and coolant liquid initial configuration temperature range in cold insulation cylinder and
Parameter；Machined 2 φ 7 limits of spacing 20mm depths 3mm in the middle part in one face 90mm wide of one end of each experiment test specimen 101
Position shallow bore hole, various cooling media purchase complete and enough outfits by operation guide requirement.
- 60 DEG C of coolant liquids 10 are first configured, the test specimen hanging holder set 5 at 4 middle part of cold insulation cover component are removed, according to Operating Guideline
Quantitative solid dry ice and liquid ethanol are successively added to cold insulation cylinder 1 by book by the central through hole 413 of cold insulation cylinder head cover 41
In；Test specimen hanging holder set 5 is installed onto on cold insulation cover component 4,180 ° repeatedly suitable, counterclockwise circumferential push-and-pull cold insulation cover components
42 head cover handles 45 make cold insulation cylinder head cover 41 around 1 switch of cold insulation cylinder, to drive 2 stirring rods 43 and thereon its
His parts stir dry ice and ethyl alcohol in cold insulation cylinder 1 together, it is made circumferentially to move and stir with upward and downward, and make the two
Mixed solution fast cooling, obtain the uniform coolant liquid of temperature；Temperature display watch or recorder are observed, when 3 temperature display values
Difference is less than 0.2 degree Celsius, and temperature is stablized when -60 DEG C or less and the temperature difference are less than 3 DEG C, illustrates that coolant temperature has reached examination
Test requirement；Cooling medium tube assembly 44 is extracted, is removed coolant liquid thereon with dry cloth, and pulled out after reinserting in coolant liquid
Go out, observes at the beginning of thering is the highest fluid level markings slot of residual coolant liquid whether to be located at coolant liquid as defined in operation guide in medium tube 4
Between beginning liquid level bound, if then illustrating that the coolant liquid liquid level of configuration meets test requirements document；If coolant liquid initial temperature is higher,
Cooling medium tube assembly 44 is then removed, according to temperature difference after its medium tube 4 inserts quantitative dry ice, is turned back to cold insulation cylinder
On head cover 41, then pushes and pulls head cover handle 45 and be stirred, to reduce coolant temperature, if coolant liquid initial temperature is relatively low,
Cooling medium tube assembly 44 is then removed, is added by the cooling medium tube assembly installation through-hole 415 on cold insulation cylinder head cover 41 quantitative
It is stirred after room temperature ethanol solution, to increase coolant temperature；If coolant liquid liquid level is higher, discharged by drain pipe valve module 7
Coolant liquid, if coolant liquid liquid level is relatively low, is installed to reduce liquid level by the cooling medium tube assembly on cold insulation cylinder head cover 41
Quantitative room temperature ethanol solution and dry ice is added in through-hole 415 and cooling medium tube assembly 44 according to the ratio, to increase cooling liquid measure, from
And increase liquid level；Temperature and liquid level in cold insulation cylinder 1 reach operation guide requirement, then complete the configuration of coolant liquid.
After the completion of coolant liquid configuration, the cooling of test specimen is carried out；Another 1 test specimen hanging holder set 5, has 2 by test specimen 101
A φ 7 limits shallow bore hole end and is inserted into the collet 52 of the test specimen hanging holder set 5 kept flat, and 2 tightenings are screwed with allen wrench 103
Screw 53 makes it be stuck in 2 φ 7 and limits in shallow bore hole, and test specimen 101 is clamped in collet 52；Lift the test specimen hanging holder set
5 carrying handle 54 makes test specimen erect the former test specimen hanger for not installing test specimen for being moved to middle large scale test specimen cryogenic box 100
The test specimen hanging holder set 5 that original does not install test specimen is extracted in the top of component 5, is inserted into the test specimen hanging holder set 5 for being equipped with test specimen；Examination
After part is inserted into cool but liquid, according to inspection and adjustment liquid level-stirring-inspection and the suitable of coolant temperature-standing cooling is adjusted
Sequence cools down, and the inspection and adjustment of coolant liquid liquid level and temperature and stirring operation method configure phase with coolant liquid
Together.
After test specimen stands the stipulated time in the cool but liquid of operation guide set point of temperature, lifted by carrying handle 54
The test specimen 101 that test specimen hanging holder set 5 and cooling are completed, is moved directly at drop weight test holder 102, and test specimen 101 is lain in
After on the exact test position of drop weight test holder 102,2 holding screws 53 are screwed out into test specimen 101 with allen wrench 103
2 limit shallow bore holes, detach test specimen hanging holder set 5, you can carry out the drop weight test of the test specimen.
It is essentially identical when the whole operation process of experiment is with -60 DEG C of experiments when needing to carry out -100 DEG C of experiment, it is only cold
But liquid by be liquid liquid nitrogen and ethyl alcohol configure, the charging method of liquid nitrogen is identical with ethyl alcohol, cools down medium tube assembly 44 and only makees
Liquid level scale uses.
Show the middle large scale test specimen cryogenic box of the utility model, simple in structure sturdy and durable, processing and fabricating through application
It is easy；Refrigerating loss amount than existing simple rectangle cryostat, reduces 50% or more, and cold insulation effect is good；The utility model only compared with
Small cooling liquid level, be provided with fixed dedicated test specimen mounting device and manhole appendix and special temperature liquid level monitoring part and
Agitating device, for approximate totally-enclosed design, just defined in structure design to operate as required, and is provided with detailed match
Set operates with specification, can be convenient for the standard operation of cryogenic box；It can subtract to greatest extent in the specification of operation and operating process
The contact for having lacked operator and coolant liquid and test specimen avoids the operation in cryogenic liquid, and low-temperature test behaviour greatly improved
Make safety；A kind of single set price of co-content profession cryostat, equipment is generally at 60,000 yuan or so, and the utility model single cylinder
Cryogenic box cost is can be controlled within 3,000 yuan, and cost is relatively low and substantially without maintenance, and cooling medium consumption and loss are than existing
Cryogenic box (slot) reduces 30% or more, there is good usage economy；0~-196 DEG C of low-temperature test demands can be met；Reach
Purpose of utility model.
By one or more embodiment of the utility model, the utility model has the advantages that or excellent
Point：
The utility model discloses a kind of middle large scale test specimen cryogenic box, including cold insulation cylinder, Cold-keeping Layer, incubator,
Cold insulation cover component, test specimen hanging holder set, outline border, drain pipe valve module, cylinder link block；The cold insulation cover assembly set is in institute
The top of cold insulation cylinder is stated, it can be around the cold insulation barrel body rotation；Temperature sensor, stirring are designed on the cold insulation cover component
Bar, cooling medium tube assembly, head cover handle are, it can be achieved that the temperature and liquid level controlling of coolant liquid and stirring；Test specimen lifting is fixed on
Test specimen hanging holder set lower part positioned at the cold insulation cover component center, is inserted in the cooling medium of the cold insulation cylinder and drops
Temperature；The Cold-keeping Layer coats the cold insulation cylinder, and the two is inlaid in together in the incubator；The incubator is inlaid in described
In outline border.The utility model is simple in structure sturdy and durable, and processing and fabricating is easy, and cold insulation effect is good, and processing safety is high, convenient for rule
Model operates, and cost is not high, can reduce cooling medium consumption and refrigerating loss amount, improves its usage economy, can be good at meeting
Low-temperature test is irregular a large number of experiments in short-term, and 0~-196 DEG C of test temperature, tests safety and Regulatory requirements are higher,
Ask the requirement of the laboratory of experiment good economy performance.
0~-196 DEG C of the test temperature of the utility model, subjects are mostly the test specimens such as weld seam, base material and wlding, examination
Test that safety and Regulatory requirements are high, moderate cost and the good cryogenic box (slot) of usage economy.
Although the preferred embodiment of the application has been described, one of ordinary skilled in the art once knows substantially
Creative concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as
It includes preferred embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out the application essence of the various modification and variations without departing from the application
God and range.In this way, if these modifications and variations of the application belong to the range of the application claim and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of middle large scale test specimen cryogenic box, which is characterized in that including：
Cold insulation cylinder (1), Cold-keeping Layer (2), incubator (3), cold insulation cover component (4), test specimen hanging holder set (5), outline border (6),
Drain pipe valve module (7), cylinder link block (8)；
The cold insulation cover component (4) is sleeved on the top of the cold insulation cylinder (1), can be rotated around the cold insulation cylinder (1)；It is described
Temperature sensor (42), stirring rod (43), cooling medium tube assembly (44) and head cover handle are designed on cold insulation cover component (4)
(45), it can be achieved that the temperature of coolant liquid and liquid level controlling and stirring；Test specimen lifting is fixed on positioned at the cold insulation cover component (4)
Test specimen hanging holder set (5) lower part at center, is inserted in the cooling medium of the cold insulation cylinder (1) and cools down；
The Cold-keeping Layer (2) coats the cold insulation cylinder (1), and the two is inlaid in together in the incubator (3)；
The incubator (3) is inlaid in the outline border (6).
2. middle large scale test specimen cryogenic box according to claim 1, which is characterized in that
The cold insulation cylinder (1) is vertical and cylindrical structure；
The cold insulation cylinder (1) includes：Low temperature lengths of steel pipes (11), cylinder bottom plate (12), baffle ring (13), cylinder fixed ear (14) and
Pipe fitting (15)；
Wherein, the cylinder bottom plate (12) and the baffle ring (13) are welded in the bottom end and top of the low temperature lengths of steel pipes (11) respectively
Outer wall, a pair of cylinder fixed ear (14) about low temperature lengths of steel pipes (11) axisymmetrical, and respectively with the low temperature lengths of steel pipes
(11) outer wall and the welding of the baffle ring (13) lower surface, both ends are that the pipe fitting (15) of sealing pipe screw thread is placed in the low temperature
In the tube wall trepanning of lengths of steel pipes (11) lower part and with tube wall two-sided welding.
3. middle large scale test specimen cryogenic box according to claim 1 or 2, which is characterized in that the incubator (3) uses
Rigid foam thermal insulation material, center have and the cold insulation cylinder (1) and cold insulation cover component (4) diameter and matched
Ladder blind hole.
4. middle large scale test specimen cryogenic box according to claim 2, which is characterized in that the cold insulation cover component (4)
Including：Cold insulation cylinder head cover (41), temperature sensor (42), stirring rod (43), cooling medium tube assembly (44) and head cover handle
(45)。
5. middle large scale test specimen cryogenic box according to claim 4, which is characterized in that
The circular upper surface of the cold insulation cylinder head cover (41) is provided with concentric boss, and lower surface is provided with concentric concave station, uses
Low Heat Conduction Material makes, and the cold insulation cylinder head cover (41) is provided centrally with central through hole, the upper table of the cold insulation cylinder head cover (41)
Face is provided with temperature sensor tapped through hole, cooling medium tube assembly installation through-hole, head cover handle installing blind；
The temperature sensor (42) is the Multi probe temperature sensor that probe is provided in different height；
The stirring rod (43) welds oppositely oriented leaf production using the inside and outside cambered surface of arc low-temperature steel lath, and top is welded with
Fixed plate；
The cooling medium tube assembly (44) is formed by connecting by the installing handle on top and the medium tube of lower part, and low Heat Conduction Material makes
Installing handle be ladder shaft-like, installing handle upper design is handle, and for bottom cylinder for connecting medium tube, medium tube uses thin-walled
Low temperature steel pipe manufacturing, middle part are designed with the axial elongated slot symmetrically penetrated through, and bottom end is designed as angular cut, and outer surface of tube wall is etched with
Liquid level scale slot；
The temperature sensor (42), the cooling medium tube assembly (44) and the head cover handle (45) pass through the guarantor respectively
The temperature sensor tapped through hole of cold cylinder head cover (41), the cooling medium tube assembly installation through-hole, the head cover handle
Installing blind is vertically mounted on the cold insulation cylinder head cover (41), and the stirring rod (43) is relative to the cold insulation cylinder head cover (41)
It is axially vertical, radial have certain inclination angle, cold insulation cylinder head cover (41) the concave station inner surface is fixed on screw.
6. middle large scale test specimen cryogenic box according to claim 5, which is characterized in that test specimen hanging holder set (5) includes：
Flap seat (51), collet (52), holding screw (53) and carrying handle (54).
7. middle large scale test specimen cryogenic box according to claim 6, which is characterized in that
The flap seat (51) is processed using low Heat Conduction Material, is that ladder is round table-like, bottom cylindrical center is provided with central blind hole；Institute
It states collet (52) and uses low-temperature steel welding production, lower part is trough-shaped base, and trough-shaped base two sides centre position position on the lower side is set
In respect of perforation screw hole, trough-shaped base upper surface center is welded with connection pipe；Described in the pipe on collet (52) top is inserted into
The central blind hole of flap seat (51) bottom, is fixed with bolt, and the holding screw (53) is screwed in collet (52) trough-shaped base side
It penetrates through in screw hole, the carrying handle (54) is fixed on the flap seat (51) top surface with screw.
8. middle large scale test specimen cryogenic box according to claim 1, which is characterized in that set at the top of the outline border (6)
In respect of 2 removable fixed links.
9. middle large scale test specimen cryogenic box according to claim 1, which is characterized in that the cylinder link block (8) is adopted
It is made of low Heat Conduction Material.
10. middle large scale test specimen cryogenic box according to claim 7, which is characterized in that
The following barrel of the baffle ring (13) and bottom plate of the cold insulation cylinder (1) are coated with the Cold-keeping Layer (2), and are flush-mounted in institute
In the ladder blind hole for stating incubator (3) center；
The incubator (3) is flush-mounted in the outline border (6)；
2 cylinder link blocks (8) respectively with 2 cylinder fixed ears (14) of the cold insulation cylinder (1) and described outer
2 removable fixed links of frame (6) are connected with screw, and the cold insulation cylinder (1) is made to be fixed in the outline border (6)；
The cold insulation cylinder head cover (41) of the cold insulation cover component (4) is assemblied in the ladder blind hole at the incubator (3) center
Top, and be set on the baffle ring (13) above barrel of the cold insulation cylinder (1), table in the concave station of the cold insulation cylinder head cover
Face pressure is in cold insulation cylinder (1) upper edge, the temperature sensor (42), the stirring rod of the cold insulation cover component (4)
(43), the cooling medium tube assembly (44) is inserted in the cold insulation cylinder (1)；The test specimen hanging holder set (5) is plugged in institute
In the central through hole for stating cold insulation cylinder head cover (41), boss lower surface is pressed on the cold insulation cylinder head cover at the top of the flap seat (51)
(41) on concentric boss；The cold insulation cover group can be made by pushing and pulling the head cover handle (45) of the cold insulation cover component (4)
Part (4) and the test specimen hanging holder set (5) being mounted thereon rotate around the cold insulation cylinder (1)；The drain pipe valve module
(7) it is threadedly coupled using seal pipe with the pipe fitting (15) of the cold insulation cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602286.6U CN208012944U (en) | 2017-11-27 | 2017-11-27 | A kind of middle large scale test specimen cryogenic box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602286.6U CN208012944U (en) | 2017-11-27 | 2017-11-27 | A kind of middle large scale test specimen cryogenic box |
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| Publication Number | Publication Date |
|---|---|
| CN208012944U true CN208012944U (en) | 2018-10-26 |
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| CN201721602286.6U Expired - Fee Related CN208012944U (en) | 2017-11-27 | 2017-11-27 | A kind of middle large scale test specimen cryogenic box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843482A (en) * | 2017-11-27 | 2018-03-27 | 中国石油天然气集团公司 | A kind of middle large scale test specimen cryogenic box |
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2017
- 2017-11-27 CN CN201721602286.6U patent/CN208012944U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843482A (en) * | 2017-11-27 | 2018-03-27 | 中国石油天然气集团公司 | A kind of middle large scale test specimen cryogenic box |
| CN107843482B (en) * | 2017-11-27 | 2024-04-02 | 中国石油天然气集团公司 | Low-temperature box for medium-and-large-size test piece |
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