CN110082284A - A kind of system and method for adjustable ice layer thickness and progress avalanche test - Google Patents
A kind of system and method for adjustable ice layer thickness and progress avalanche test Download PDFInfo
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- CN110082284A CN110082284A CN201910281723.6A CN201910281723A CN110082284A CN 110082284 A CN110082284 A CN 110082284A CN 201910281723 A CN201910281723 A CN 201910281723A CN 110082284 A CN110082284 A CN 110082284A
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- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The present invention discloses the system and method for a kind of adjustable ice layer thickness and progress avalanche test, components of system as directed includes keeping the temperature closed laboratory, keep the temperature the concrete retention reservoir that open-top is equipped in closed laboratory, the lateral wall covering of concrete retention reservoir is enclosed with heat insulation layer, keeps the temperature closed laboratory and is additionally provided with the cooling device for cooling down to concrete retention reservoir upper water and the register for carrying out temperature adjustment to concrete retention reservoir lower water；In addition invention additionally discloses the corresponding methods for adjusting ice layer thickness and carrying out avalanche test；The present invention, which realizes, to be adjusted ice layer thickness and carries out avalanche test, and in the purpose of experiment indoor simulation China cold district winter reservoir area icing and deicing processes, can be studied for related science and be provided technical support.
Description
Technical field
The present invention relates to hydraulic engineering technical field of concrete construction, in particular to a kind of adjustable ice layer thickness and progress
The system and method for avalanche test.
Background technique
With the development of dam construction technique, China's hydraulic engineering nationwide, by the weather of regional impact different location
Environment also differs widely.Such as northwest China severe cold area winter minimum temperature is up to subzero 40 DEG C, and when be often accompanied by strong wind day
Gas, the reservoir area water surface will form ice sheet under cryogenic, and under the conditions of consecutive low temperature, water body starts to freeze from top to bottom, ice
The thickness of layer is consequently increased.It is influenced by day and night temperature difference wave amplitude, volume change can occur for ice sheet itself, and surrounding is in constraint condition
When the cubic deformation of ice can not discharge, the concrete or surface heat preservation protective layer of dam upstream dam facing just will receive ice sheet and bring
Pressure, when this pressure break through concrete or the compression limit that keeps the temperature protective materials hydro-structure will be generated it is broken
It is bad.
After severe winter, reservoir area ice sheet tends not to melt immediately, as long as the ice sheet meeting periods of months in some areas, with dampening
The operation actions such as sharp engineering normally generates electricity, flood discharge, reservoir area water are that can decline to come to nothing with the formation of the ice sheet on top, work as ice sheet
When being more than its own bearing capacity under self weight or external force, phenomena such as being crushed avalanche will occur, close to hydraulic engineering table
Tension and compression can be generated to structure when the ice sheet avalanche in face to destroy.Broken ice cube swims in the reservoir area water surface, in upland water, wind-force item
Dynamic ice can be become under part and constantly hit hydraulic engineering body structure surface, engineering safety can equally be run and be had an impact.In order to grind
Study carefully the influence under different-thickness ice sheet and its avalanche behavior to engineering, needs to carry out correlative study under similar conditions.
Research hydraulic large-volume concrete can induce which type of variation, usual feelings in the natural environment of this complexity at present
Relatively straightforward method is to carry out prototype simulation test in engineering location under condition, can guarantee external environment influence factor in this way
It is as consistent as possible, reduce influence of the boundary condition to experimental result.But it is faced with period length, experimentation cost height, environment in this way
The disadvantages of condition is uncontrollable, and research weather conditions are single, therefore carry out climatic simulation indoors and then complete hydraulic engineering test
As mainstream, therefore the pilot system of a kind of adjustable ice layer thickness and avalanche is targetedly studied, and then establish certain scale
Climate environment simulation test be very necessary.
So-called climatic environmental changes test, aiming at the hydraulic engineering concrete under different geographical condition of different temperatures
And its dependency structure, it is exposed under the estimated various environmental activities being likely encountered, right environment or manual simulation can be selected from
Environment, under conditions of guaranteeing the complete realization of predetermined function and performance, they can actually be encountered by test construction,
Performance under service condition makes evaluation, and the influence degree and the mechanism of action of research environment factor.Environmental test is true
It protects Product environment adaptability and improves the important means of product reliability.
Environmental simulation domestic scholars are had carried out some research, such as large-scale high/low temperature environmental simulation experimental cabin, height are warm and humid
Hot laboratory etc. can simulate high temperature or microthermal climate, and temporarily there are no special adjustable ice layer thickness at present
With the pilot system of avalanche, correlative study is much to complete in true natural environment, or be divided into several subjects by existing
Some environmental simulation conditions are completed, and some achievements are also achieved, but still can mainly be had following several in place of improve and perfect again
Point.
(1) the field test period is long
Adaptability verification test is carried out in the natural environment, and various climatic environments are difficult to occur in a short time, and the test period is too
It is long, cause the consumption of a large amount of time, financial resource and material resource and manpower；Secondly natural environment is complicated severe, it is difficult to comprehensively intuitively
Monitoring test data, test accuracy and authenticity it is difficult to ensure that.
(2) existing simulated environment condition is single
Water body caused by microthermal climate in order to study cold district winter freezes influence of the ice sheet to be formed to dam concrete,
The low temperature environment under extreme climate should be simulated, can locally reach subzero 40 DEG C；Observation ice sheet is when water level changes again
The avalanche phenomenon of generation；Simultaneously ice-melt phase floating ice is also studied under windage to hydraulic engineering structural stress situation, it is existing
Experiment condition can not meet simultaneously, need to seek a set of suitable pilot system for conducting a research for row.
(3) heating temperature fall time is long, automatization level is insufficient
The adjusting of ice layer thickness essentially consists in the control of temperature, and the specific heat of water is maximum, and the heat that when icing is discharged is also larger,
This requires experimental systems stable in a short time to provide biggish cold source, while temperature change has big be used in large space
Property, the phenomenon that being delayed and being unevenly distributed greatly, need to carry out using high-power refrigeration equipment and corresponding automatic control device.
In the present age, artificial environment analogue technique is main environment experimental technique used in research and production now.People
Work environmental simulation test is substantially the influence for summarising actual environment of science, compares Outdoor exposure test, its more allusion quotation
Type, standardization use also enhanced convenience, quick, and the comparability of test result is stronger.Artificial environment analogue technique
Environmental test equipment is relied primarily on to realize, environmental test equipment is therefore the foundation stone of environment simulation technique gos deep into it
Research and inquirement have great meaning.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of adjustable ice layer thickness with carry out avalanche test is
System and method realize adjusting ice layer thickness and progress avalanche test, and in experiment indoor simulation China cold district winter reservoir area
The purpose to freeze with deicing processes provides technical support for related science research.
The present invention is in order to solve the above technical problems, used technical solution is: a kind of adjustable ice layer thickness and progress
The system of avalanche test, it includes keeping the temperature closed laboratory, keeps the temperature the concrete water-storage that open-top is equipped in closed laboratory
The lateral wall covering in pond, concrete retention reservoir is enclosed with heat insulation layer, keeps the temperature closed laboratory and is additionally provided with for concrete
The cooling device that reservoir upper water cools down and the register for carrying out temperature adjustment to concrete retention reservoir lower water.
Preferably, the cooling device includes keeping the temperature refrigeration compressor set outside closed laboratory and being located to keep the temperature closed reality
Test indoor cold wind release device.
Preferably, the register includes the water inlet pipe and outlet pipe positioned at concrete water-storage bottom of pond portion, the water inlet
Pipe connect with cooling-water machine water outlet, the outlet pipe is connect with cooling-water machine water return outlet, be equipped on water inlet pipe and outlet pipe pump with
Valve.
Preferably, the cooling-water machine includes cold water tank, and heat-exchange tube is equipped in cold water tank, and cold water pot bottom is equipped with heating
Device, the liquid feeding end and outlet end of heat-exchange tube are connect by pipeline with refrigeration machine.
Preferably, the concrete water-storage bottom of pond portion is additionally provided with evacuated tube, and evacuated tube is equipped with altitude valve.
Preferably, the closed laboratory of heat preservation is built using brick mix structure or cold storage plate is built, and internal six faces are equal
Covering and heat insulating heat-barrier material；The concrete retention reservoir is poured using armored concrete, and side offers ice layer thickness
Observation window.
In addition the present invention also provides the methods that ice layer thickness is adjusted using above system, it is characterised in that: it includes such as
Lower step:
Step 1): cooling device is opened, the cold wind release device blowing cold air of cooling device is to the closed experiment indoor environment of heat preservation
Cool down, so that concrete retention reservoir surface water layer starts to freeze；
Step 2: ice layer thickness constantly increases from top to bottom in concrete retention reservoir after continued down, is observed by ice layer thickness
Window observes ice layer thickness, closes cooling device after thickness makes it value；
Step 3): when needing to reduce ice layer thickness, opening the heater in register, and the water heating in cold water tank makes cold
Hot water in water pot enters concrete water-storage bottom of pond portion by water inlet pipe, and the cold water in concrete retention reservoir passes through outlet pipe
It flows back into cold water tank, to start to carry out circulation temperature-rise period to the water of concrete retention reservoir lower layer；
Step 4): ice layer thickness is observed by ice layer thickness observation window, closes and adjusts after ice layer thickness is reduced to predetermined target value
Warm device.
Preferably, in step 1), when needing the water to concrete retention reservoir endosexine to cool down, synchronous open is adjusted
Refrigeration machine in warm device, the water cooling in cold water tank, makes the cold water in cold water tank enter concrete water-storage by water inlet pipe
In pond, precooling process is carried out to the water in concrete retention reservoir, when the water in concrete retention reservoir cools to cold water tank inner cold water
When lowest temperature angle value, the refrigeration machine in register is closed.
In addition, it includes the following steps: the present invention also provides the method for carrying out avalanche test using above system
Step 1): cooling device is opened, the cold wind release device blowing cold air of cooling device is to the closed experiment indoor environment of heat preservation
Cool down, so that concrete retention reservoir surface water layer starts to freeze；
Step 2: ice layer thickness constantly increases from top to bottom in concrete retention reservoir after continued down, is observed by ice layer thickness
Window observes ice layer thickness, closes cooling device after thickness makes it value；
Step 3): opening the heater in register, and the water heating in cold water tank makes the hot water in cold water tank pass through water inlet pipe
Concrete water-storage bottom of pond portion is entered, and the cold water in concrete retention reservoir is flow back into cold water tank by outlet pipe, to open
Beginning carries out circulation temperature-rise period to the water of concrete retention reservoir lower layer；
Step 4): observing ice sheet by ice layer thickness observation window and melt phenomenon, and temperature adjustment dress is closed when needing to carry out avalanche test
It sets；
Step 5): the altitude valve in evacuated tube, the water emptying of ice sheet bottom, when ice sheet side and concrete retention reservoir are opened
When adhesive force between inner sidewall is less than ice sheet self gravity, ice sheet starts avalanche, observes avalanche process；
Step 6): repeating the above steps, and change the step 2) formed in ice sheet thickness, observe different-thickness ice sheet caused by
Avalanche process.
Beneficial effects of the present invention:
1, the present invention, which realizes, adjusts ice layer thickness and carries out avalanche test, and in experiment indoor simulation China cold district winter
Reservoir area freezes and the purpose of deicing processes, can study for related science and provide technical support.
2, the present invention uses cooling device and register, can be to indoor water temperature bidirectional modulation, water temperature model
- 45 DEG C ~ 50 DEG C are trapped among, can satisfy climate temperature requirement most in natural environment, research range is extensively sent out.
3, in temperature-fall period, in addition to cooling device to cool down to indoor environment, and then make water body in concrete retention reservoir
Cooling also can use the low temperature functional of register, be cooled to 5 DEG C directly to water body, can simulate cold district outside freezing
Low temperature snow mountain melt water process.
4, the cold wind release device that the present invention uses can simulate cold district winter for refrigeration mode of blowing at runtime
Generally existing strong wind weather when being installed in the top of concrete retention reservoir, can simulate the surge situation of reservoir area.
5, the method and apparatus through the invention, can form the laboratory with simulated environment temperature, can
To need the test and research that carry out under feature environment to be placed on indoor progress for many, and different factors and more can be merged
Kind of operating condition such as low temperature, dynamic ice shock, surge etc. can be ground with complete to need the several years that could complete in the natural environment in the short time
Study carefully, reduce experimentation cost, experimentation cost is low, the period is short, environmental condition is controllable, reproducible weather failure, and is conducive to
Inducement is searched, efficiently can provide reliable basis for Curve guide impeller.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the system of adjustable ice layer thickness and progress avalanche test；
Fig. 2 is the structural schematic diagram in Fig. 1 after concrete retention reservoir covering and heat insulating thermal insulation layer；
Fig. 3 is the refrigeration compressor set in Fig. 1 in cooling device and the attachment structure schematic diagram between cooling tower；
Fig. 4 is the structural schematic diagram of cooling-water machine in Fig. 1；
In figure, keep the temperature closed laboratory 1, concrete retention reservoir 2, heat insulation layer 3, cooling device 4, refrigeration compressor set 4.1,
Cold wind release device 4.2, cooling tower 4.3, register 5, water inlet pipe 5.1, cooling-water machine 5.2, cold water tank 5.2.1, heat-exchange tube
5.2.2, heater 5.2.3, refrigeration machine 5.2.4, outlet pipe 5.3, evacuated tube 6, altitude valve 6.1.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figures 1 to 4, a kind of adjustable ice layer thickness and the system for carrying out avalanche test, it includes keeping the temperature closed reality
Room 1 is tested, the concrete retention reservoir 2 for being equipped with open-top in closed laboratory 1, the lateral wall covering of concrete retention reservoir 2 are kept the temperature
It is enclosed with heat insulation layer 3, closed laboratory 1 is kept the temperature and is additionally provided with drop for cooling down to 2 upper water of concrete retention reservoir
Warm device 4 and for 2 lower water of concrete retention reservoir carry out temperature adjustment register 5.
Preferably, the cooling device 4 is including keeping the temperature the refrigeration compressor set 4.1 outside closed laboratory 1 and being located at heat preservation
Cold wind release device 4.2 in closed laboratory 1.In the present embodiment, cooling device 4 can use DJ type ceiling mounting type air-cooler,
Wherein it is located to keep the temperature outside closed laboratory 1 and has refrigeration compressor set 4.1, rapid cooling is carried out to refrigeration compressor set 4.1
Cooling tower 4.3, electric cabinet and split type controller；Split type controller can be arranged in monitoring room by signal wire, carry
Software and hardware can to cooling device 4 carry out remote auto control；Refrigeration compressor set 4.1 uses 30 in the present embodiment
Twin-stage Semi-closed piston refrigeration compressor group, this compressor set are processed using the design of advanced structure and stringent material mechanical,
Light-weight with small in size, the advantages that opposite refrigerating capacity is big, the medium of appropriate mix can make room temperature be reduced to subzero 45
DEG C, the medium in the present embodiment uses R404A refrigerant, can be non-condensing in subzero 45 DEG C of low temperature, pass through refrigeration compressor set
4.1 switch to liquid at low temperature, reach cold wind release device 4.2 by transfer pipeline, are converted into gaseous state after heat exchange and return
Be back to 4.1 repetitive cycling of refrigeration compressor set, and cold wind release device 4.2 air of temperature decrease is quickly dispelled it is close to keeping the temperature
It closes in laboratory 1, so that keeping the temperature temperature in closed laboratory 1 quickly reduces.
In addition the air quantity generated when the fan in the cold wind release device 4.2 in the present embodiment operates can simulate winter library
The strong wind atmosphere in area.
Preferably, the register 5 includes the water inlet pipe 5.1 and outlet pipe 5.3 positioned at 2 bottom of concrete retention reservoir,
The water inlet pipe 5.1 is connect with 5.2 water outlet of cooling-water machine, and the outlet pipe 5.3 is connected in 5.2 water return outlet of cooling-water machine, water inlet pipe
5.1 and outlet pipe 5.3 on be equipped with pump and valve.
Preferably, the cooling-water machine 5.2 includes cold water tank 5.2.1, and heat-exchange tube 5.2.2 is equipped in cold water tank 5.2.1, cold
The bottom water pot 5.2.1 is equipped with heater 5.2.3, and the liquid feeding end and outlet end of heat-exchange tube 5.2.2 passes through pipeline and refrigeration machine
5.2.4 connection.
Cooling-water machine 5.2 in the present embodiment is improved using Cool-water Machine for Industry, and wherein refrigeration machine 5.2.4 includes compression
The composition such as machine, condenser, cooling tower, device for drying and filtering, heating power expansion valve, water pump, is this field common structure, can provide
The water that minimum temperature is 5 DEG C, the present embodiment, can be to cold water tank after cold water tank 5.2.1 is additionally arranged at the bottom of heater 5.2.3
5.2.1 the water in carries out heating process, can provide the water that maximum temperature is 50 DEG C；Therefore the cooling-water machine 5.2 in the present embodiment
The water that temperature range is 5-50 DEG C can be provided.
In addition 5.2 quantity of cooling-water machine in the present embodiment can be set more, is formed in parallel between them, can increase in this way
Add the temperature adjustment efficiency of register 5.
Preferably, 2 bottom of concrete retention reservoir is additionally provided with evacuated tube 6, and evacuated tube 6 is equipped with altitude valve 6.1.
Water level can be reduced by evacuated tube 6 to simulate ice sheet avalanche process in the present embodiment.
Preferably, the closed laboratory 1 of heat preservation is built using brick mix structure or cold storage plate is built, and internal six faces are equal
Covering and heat insulating heat-barrier material；The concrete retention reservoir 2 is poured using armored concrete, and side offers ice layer thickness
Observation window.The heat preserving and insulating material that closed laboratory 1 is kept the temperature in the present embodiment can select hard polyurethane foam, and thickness can be
10~40cm；The heat insulation layer 3 of 2 lateral wall of concrete retention reservoir selects polyurethane heat-insulation thermal insulation layer, keeps the temperature closed experiment in this way
After 1 temperature of room is down to freezing point, the water of concrete retention reservoir 2 can be as the reservoir water body in natural environment from top to bottom gradually
It freezes.
In addition the present invention also provides the methods that ice layer thickness is adjusted using above system, it is characterised in that: it includes such as
Lower step:
Step 1): cooling device 4 is opened, 4.2 blowing cold air of cold wind release device of cooling device 4 is to the closed laboratory 1 of heat preservation
Interior environment cools down, so that 2 surface water layer of concrete retention reservoir starts to freeze；
Step 2: ice layer thickness constantly increases from top to bottom in concrete retention reservoir 2 after continued down, is observed by ice layer thickness
Window observes ice layer thickness, and cooling device 4 is closed after thickness makes it value；
Step 3): when needing to reduce ice layer thickness, the heater 5.2.3 in register 5 is opened, in cold water tank 5.2.1
Water heating makes hot water in cold water tank 5.2.1 enter 2 bottom of concrete retention reservoir by water inlet pipe 5.1, and concrete water-storage
Cold water in pond 2 is flow back into cold water tank 5.2.1 by outlet pipe 5.3, thus start to the water of 2 lower layer of concrete retention reservoir into
Row circulation temperature-rise period；
Step 4): ice layer thickness is observed by ice layer thickness observation window, closes and adjusts after ice layer thickness is reduced to predetermined target value
Warm device 5.
Preferably, synchronous to open when needing the water to 2 endosexine of concrete retention reservoir to cool down in step 1)
Water cooling in refrigeration machine 5.2.4 in register 5, cold water tank 5.2.1, makes the cold water in cold water tank 5.2.1 pass through water inlet
Pipe 5.1 enters in concrete retention reservoir 2, precooling process is carried out to the water in concrete retention reservoir 2, when concrete retention reservoir 2
When interior water cools to cold water tank 5.2.1 inner cold water lowest temperature angle value, the refrigeration machine 5.2.4 in register 5, such as this are closed
In embodiment, the water lower limit temperature in cold water tank 5.2.1 is 5 DEG C, when the water in concrete retention reservoir 2 cools to 5 DEG C, is not just had
Method continues through register 5 to cool down, so just directly closing the refrigeration machine 5.2.4 in register 5；Above-mentioned pre-cooling
Process can greatly save the time of cooling, improve cooling efficiency.
In addition, it includes the following steps: the present invention also provides the method for carrying out avalanche test using above system
Step 1): cooling device 4 is opened, 4.2 blowing cold air of cold wind release device of cooling device 4 is to the closed laboratory 1 of heat preservation
Interior environment cools down, so that 2 surface water layer of concrete retention reservoir starts to freeze；
Step 2: ice layer thickness constantly increases from top to bottom in concrete retention reservoir 2 after continued down, is observed by ice layer thickness
Window observes ice layer thickness, and cooling device 4 is closed after thickness makes it value；
Step 3): opening the heater 5.2.3 in register 5, and the water heating in cold water tank 5.2.1 makes in cold water tank 5.2.1
Hot water 2 bottom of concrete retention reservoir is entered by water inlet pipe 5.1, and the cold water in concrete retention reservoir 2 passes through outlet pipe
5.3 flow back into cold water tank 5.2.1, to start to carry out circulation temperature-rise period to the water of 2 lower layer of concrete retention reservoir；
Step 4): observing ice sheet by ice layer thickness observation window and melt phenomenon, and temperature adjustment dress is closed when needing to carry out avalanche test
Set 5；
Step 5): the altitude valve 6.1 in evacuated tube 6, the water emptying of ice sheet bottom, when ice sheet side and concrete store are opened
When adhesive force between 2 inner sidewall of pond is less than ice sheet self gravity, ice sheet starts avalanche, observes avalanche process；
Step 6): repeating the above steps, and change the step 2) formed in ice sheet thickness, observe different-thickness ice sheet caused by
Avalanche process.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this Shen
Please in embodiment and embodiment in feature in the absence of conflict, can mutual any combination.Protection model of the invention
The technical solution that should be recorded with claim is enclosed, the equivalent replacement side of technical characteristic in the technical solution recorded including claim
Case is protection scope.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (9)
1. a kind of adjustable ice layer thickness and the system for carrying out avalanche test, it is characterised in that: it includes keeping the temperature closed laboratory
(1), the concrete retention reservoir (2) that open-top is equipped in closed laboratory (1), the lateral wall of concrete retention reservoir (2) are kept the temperature
Covering be enclosed with heat insulation layer (3), keep the temperature closed laboratory (1) be additionally provided with for concrete retention reservoir (2) upper water into
The cooling device (4) of row cooling and the register (5) for being used to carry out concrete retention reservoir (2) lower water temperature adjustment.
2. a kind of adjustable ice layer thickness according to claim 1 and the system for carrying out avalanche test, it is characterised in that: institute
Cooling device (4) are stated to include the refrigeration compressor set (4.1) kept the temperature closed laboratory (1) outside and be located at and keep the temperature closed laboratory
(1) the cold wind release device (4.2) in.
3. a kind of adjustable ice layer thickness according to claim 1 and the system for carrying out avalanche test, it is characterised in that: institute
Stating register (5) includes the water inlet pipe (5.1) and outlet pipe (5.3) positioned at concrete retention reservoir (2) bottom, the water inlet pipe
(5.1) it is connect with cooling-water machine (5.2) water outlet, the outlet pipe (5.3) connect with cooling-water machine (5.2) water return outlet, water inlet pipe
(5.1) and on outlet pipe (5.3) pump and valve are equipped with.
4. a kind of adjustable ice layer thickness according to claim 3 and the system for carrying out avalanche test, it is characterised in that: institute
Stating cooling-water machine (5.2) includes cold water tank (5.2.1), is equipped with heat-exchange tube (5.2.2) in cold water tank (5.2.1), cold water tank
The bottom (5.2.1) is equipped with heater (5.2.3), and the liquid feeding end and outlet end of heat-exchange tube (5.2.2) pass through pipeline and refrigeration machine
(5.2.4) connection.
5. a kind of adjustable ice layer thickness according to claim 1 and the system for carrying out avalanche test, it is characterised in that: institute
It states concrete retention reservoir (2) bottom to be additionally provided with evacuated tube (6), evacuated tube (6) is equipped with altitude valve (6.1).
6. a kind of adjustable ice layer thickness according to claim 1 and the system for carrying out avalanche test, it is characterised in that: institute
It states the closed laboratory (1) of heat preservation to build using brick mix structure masonry or cold storage plate, internal six heat-insulated materials of the equal covering and heat insulating in face
Material；The concrete retention reservoir (2) is poured using armored concrete, and side offers ice layer thickness observation window.
7. a kind of method for adjusting ice layer thickness using any one of claim 1 to 6 system, it is characterised in that: it is wrapped
Include following steps:
Step 1): opening cooling device (4), and cold wind release device (4.2) blowing cold air of cooling device (4) is to the closed reality of heat preservation
It tests room (1) interior environment to cool down, so that concrete retention reservoir (2) surface water layer starts to freeze；
Step 2: concrete retention reservoir (2) interior ice layer thickness constantly increases from top to bottom after continued down, is seen by ice layer thickness
It surveys window and observes ice layer thickness, close cooling device (4) after thickness makes it value；
Step 3): when needing to reduce ice layer thickness, the heater (5.2.3) in register (5), cold water tank are opened
Water heating in (5.2.1), makes the hot water in cold water tank (5.2.1) enter concrete retention reservoir (2) by water inlet pipe (5.1)
Bottom, and the cold water in concrete retention reservoir (2) is flow back into cold water tank (5.2.1) by outlet pipe (5.3), to start pair
The water of concrete retention reservoir (2) lower layer carries out circulation temperature-rise period；
Step 4): ice layer thickness is observed by ice layer thickness observation window, closes and adjusts after ice layer thickness is reduced to predetermined target value
Warm device (5).
8. according to the method described in claim 7, it is characterized by: in step 1), when needing in concrete retention reservoir (2)
When the water on surface layer is cooled down, the refrigeration machine (5.2.4) opened in register (5) is synchronized, the water drop in cold water tank (5.2.1)
Temperature enters the cold water in cold water tank (5.2.1) in concrete retention reservoir (2) by water inlet pipe (5.1), to concrete water-storage
Water in pond (2) carries out precooling process, when to cool to cold water tank (5.2.1) inner cold water minimum for the water in concrete retention reservoir (2)
When temperature value, the refrigeration machine (5.2.4) in register (5) is closed.
9. a kind of method for carrying out avalanche test using any one of claim 1 to 6 system, it is characterised in that: it is wrapped
Include following steps:
Step 1): opening cooling device (4), and cold wind release device (4.2) blowing cold air of cooling device (4) is to the closed reality of heat preservation
It tests room (1) interior environment to cool down, so that concrete retention reservoir (2) surface water layer starts to freeze；
Step 2: concrete retention reservoir (2) interior ice layer thickness constantly increases from top to bottom after continued down, is seen by ice layer thickness
It surveys window and observes ice layer thickness, close cooling device (4) after thickness makes it value；
Step 3): opening the heater (5.2.3) in register (5), and the water heating in cold water tank (5.2.1) makes cold water tank
Hot water in (5.2.1) enters concrete retention reservoir (2) bottom by water inlet pipe (5.1), and in concrete retention reservoir (2)
Cold water is flow back into cold water tank (5.2.1) by outlet pipe (5.3), thus start to the water of concrete retention reservoir (2) lower layer into
Row circulation temperature-rise period；
Step 4): observing ice sheet by ice layer thickness observation window and melt phenomenon, and temperature adjustment dress is closed when needing to carry out avalanche test
Set (5)；
Step 5): the altitude valve (6.1) on evacuated tube (6), the water emptying of ice sheet bottom, when ice sheet side and coagulation are opened
When adhesive force between earth-dammed reservoir (2) inner sidewall is less than ice sheet self gravity, ice sheet starts avalanche, observes avalanche process；
Step 6): repeating the above steps, and change the step 2) formed in ice sheet thickness, observe different-thickness ice sheet caused by
Avalanche process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281723.6A CN110082284B (en) | 2019-04-09 | 2019-04-09 | System and method capable of adjusting ice layer thickness and performing collapse test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281723.6A CN110082284B (en) | 2019-04-09 | 2019-04-09 | System and method capable of adjusting ice layer thickness and performing collapse test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110082284A true CN110082284A (en) | 2019-08-02 |
| CN110082284B CN110082284B (en) | 2021-06-25 |
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