CN108458946A - A kind of detachable rainfall simulator of enclosing type for building and test method - Google Patents
A kind of detachable rainfall simulator of enclosing type for building and test method Download PDFInfo
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- CN108458946A CN108458946A CN201810270805.6A CN201810270805A CN108458946A CN 108458946 A CN108458946 A CN 108458946A CN 201810270805 A CN201810270805 A CN 201810270805A CN 108458946 A CN108458946 A CN 108458946A
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- 238000010998 test method Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000002184 metal Substances 0.000 claims abstract description 56
- 229910052751 metal Inorganic materials 0.000 claims abstract description 56
- 239000003755 preservative agent Substances 0.000 claims abstract description 34
- 230000002335 preservative effect Effects 0.000 claims abstract description 34
- 238000002474 experimental method Methods 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 claims description 78
- 239000000463 material Substances 0.000 claims description 18
- 230000009123 feedback regulation Effects 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000009408 flooring Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 239000011449 brick Substances 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 239000004035 construction material Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011380 pervious concrete Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
- G01N5/025—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content for determining moisture content
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
Include rainfall nozzle, transparent preservative film, rain gage bucket, rain water filtering device, water tank, variable frequency pump, electronic box and electronic computer the invention discloses a kind of detachable rainfall simulator of enclosing type for building and test method, the device；Frame is hollow-core construction；Frame setting is held in metal on water platform；Transparent preservative film is arranged in the periphery of frame, and it is inside and outside two layers to enclose the number of plies；Transparent preservative film side roller shutter is arranged in the side of frame；Water tank is connected by water inlet pipe with variable frequency pump one end；The variable frequency pump other end is connected with outlet pipe；Outlet pipe is connected to return pipe one end, the other end joining water box of return pipe, and return pipe is equipped with backwater valve；The end of outlet pipe connects rainfall nozzle.The present invention can precisely adjust rainfall intensity according to requirement of experiment, avoid and polluted to flooring, while is simple to operation, and whole device is readily disassembled, convenient for recycling.
Description
Technical field
The present invention relates to a kind of rainfall simulators, are filled more particularly to a kind of detachable simulated rainfall of enclosing type for building
It sets, for simulating water cut changing law of the porous construction material under rainfall, belongs to Building Technology Science field.
Background technology
The water storage performance of porous construction material is to weigh the important parameter of evaporative cooling performance under its fair weather, good
Water storage performance is to ensure that it can have more moisture to be evaporated in fine day.Under natural conditions, the parameter by rainfall duration and
Rainfall intensity is affected, and in laboratory research when research material water absorbing properties, traditional rainfall simulator is susceptible to drop
Rain area is excessive, and personnel can not accurately monitor the water-cut variation that porous material is built under rainfall environment；Secondly to row is not arranged
The laboratory of drainage facility, traditional rainfall simulator rainwater pollution ground do not allow disposable and rainwater that can not recycle.
Invention content
Present invention aims to overcome that problem of the existing technology, provides one kind and accurate Simulated rainfall may be implemented,
Test is accurate, avoids and is polluted to flooring, the detachable rainfall simulator of enclosing type for building being readily disassembled and test
Method.
The object of the invention is achieved through the following technical solutions：
A kind of detachable rainfall simulator of enclosing type for building, including rainfall nozzle, transparent preservative film, transparent preservative film
Side roller shutter, frame, metal hold water platform, hollow out metal specimen cushion cap, the support of needle-shaped test specimen, rain gage bucket, rain water filtering device, water
Case, variable frequency pump, electronic box, data connecting line and electronic computer；The frame is hollow-core construction；Frame is arranged holds water in metal
On platform；Transparent preservative film is arranged in the periphery of frame, and it is inside and outside two layers to enclose the number of plies；Transparent preservative film side roller shutter is arranged in frame
The side of frame；Water tank is connected by water inlet pipe with variable frequency pump one end；The variable frequency pump other end is connected with outlet pipe；Outlet pipe with
Return pipe one end is connected to, the other end joining water box of return pipe, and return pipe is equipped with backwater valve；The end connection drop of outlet pipe
Rain nozzle, experiment test specimen to be measured are placed in needle-shaped test specimen support, and needle-shaped test specimen support is arranged in hollow out metal specimen cushion cap
On, experiment test specimen, the support of needle-shaped test specimen and hollow out metal specimen cushion cap are integrally positioned over immediately below rainfall nozzle；Rain gage bucket is placed
It is held on water platform in metal；Metal holds the center setting rainwater refluxing opening of water platform, and rainwater refluxing opening is equipped with rain water filtering device；Water tank
It is arranged in hollow out metal specimen cushion cap lower end, rain water filtering device is connect with metal water tank；Electronic box by data connecting line respectively with
Electronic computer is connected with rain gage bucket；Electronic box is also connect with variable frequency pump；In electronic box setting intelligent frequency-conversion feedback regulation device and
Electromagnetic type switchs.
To further realize the object of the invention, it is preferable that the frame is hollow rectangular parallelepiped structure, is passed through by PVC pipe
Cross bar is connected to form with upright bar.
Preferably, the transparent preservative film side roller shutter cuts off three faces by the transparent preservative film of outer layer, and internal layer is transparent fresh-keeping
Film cuts square orifice and is formed.
Preferably, the outlet pipe is connect by latching with outlet pipe supporting rack.
Preferably, the top center in frame is arranged in the rainfall nozzle.
Preferably, the rainfall nozzle uses the special rainfall nozzles of Si Purui, and rainfall space is suspended from using vertical supporting bar
Right over central.
Preferably, the electronic computer uses notebook or desktop computer.
Preferably, the hollow out metal specimen cushion cap is waterproof cushion cap, and metal holds water platform and was equipped with 2% from four weeks to center
Gradient slope.
Preferably, the rain gage bucket uses standard rain gage bucket using meteorological.
Using the method that the rainfall simulator tests experiment test specimen, include the following steps：
1) it before testing, will weigh after experiment test specimen drying postcooling to constant weight, record initial weight m0；
2) rain gage bucket is placed on metal to hold on water platform, is located at the side of hollow out metal specimen cushion cap, is calculated by electronics
Machine setting rainfall intensity makes rainfall intensity reach test request by the PID regulator feedback regulation water pump frequency in electronic box；
3) by step 1), treated that experiment test specimen is positioned in the support of needle-shaped test specimen, passes through every time interval t transparent
Preservative film side roller shutter takes out test specimen, is positioned over the water content that material is detected on balance, and weighing for n-th is denoted as mn；It adopts
With (mn‐m0) it is ordinate, the water drenching time cumulation duration nt taken out every time is abscissa, and material moisture content changes with time
Rule, n take natural number.
Compared with the existing technology, the invention has the advantages that and advantageous effect：
1) setting intelligent frequency-conversion feedback regulation device (PID regulator) in electronic box of the present invention, can be according to computer installation
Rainfall intensity, the power of feedback regulation variable frequency pump, so as to adjust the water-jet velocity of rainfall nozzle, and then it is strong to adjust rainfall
Degree；Setting electromagnetic type switchs in electronic box, the program being arranged by electronic computer, starts and stops variable frequency pump and use electronic box
Water pump is controlled, rain gage bucket, electronic box connect computer, collect data by rain gage bucket, feedback frequency modulation controls variable frequency pump, to precisely
Rainfall intensity is adjusted, and the water cut changing law for monitoring material of weighing can be passed through in real time.
2) frame of the present invention, metal hold the size of water platform and rainfall nozzle held with metal can be according to reality at a distance from water platform
The variation range for testing place size and required rainfall intensity carries out autonomous Design, mainly meets enough rainfall spaces, prevents from dropping
Rain space is too small to cause rainwater to fall the backwash on transparent preservative film to return, influence Rainfall Homogeneity.
3) rainfall nozzle of the present invention uses the special rainfall nozzles of Si Purui, and rainfall space center is suspended from using vertical supporting bar
Surface；Rainfall nozzle adjusts rainfall intensity ranging from 0.5mm/min~2.5mm/min, meets construction material rainfall requirement；It adopts
It is controlled with electronic box connection computer, convenient test.
4) apparatus of the present invention mainly hold water platform, hollow out metal specimen cushion cap, experiment examination by transparent preservative film, frame, metal
Part, needle-shaped test specimen support combinations provide test environment；Transparent preservative film surrounds frame surrounding to form rainfall space, prevents rainwater
Spluttering ensure that the controllability of rainwater；Rainfall surrounding volume is enclosed using film class transparent material, frame facet setting is transparent
Preservative film side roller shutter can monitor test specimen change of moisture content, experiment can also be opened on by this at any time for the roller shutter structure that is open
Test specimen is tested in preceding placement.
5) hollow out metal specimen cushion cap of the present invention is waterproof cushion cap, and metal holds water platform and was equipped with 2% slope from four weeks to center
Slope is spent, the center of hollow out metal specimen cushion cap is equipped with rainwater refluxing opening, and rainwater refluxing opening is equipped with rain water filtering device, for recycling rain
Water.The water inlet pipe of the water inlet end of variable frequency pump is equipped with rain water filtering device, prevents variable frequency pump from blocking.To pumping equipment is not arranged
Laboratory, solve the problems, such as that traditional rainfall simulator rainwater pollution ground does not allow disposable and rainwater that can not recycle.
6) return pipe is set on outlet pipe of the present invention, and return pipe is equipped with valve, for supplementing variable frequency pump degree of regulation
Deficiency, finely tunes rainfall intensity, and satisfaction manually controls demand, can be also used for braking in emergency circumstances, prevent water pump from becoming
Frequency is slipped up, and flow is excessive, destroys rainfall nozzle.
7) present invention experiment test specimen is placed on using point supporting way in needle-shaped test specimen support, and needle-shaped test specimen support setting exists
On hollow out metal specimen cushion cap, maximum possible ensure that upper surface contacts rainwater, when avoiding placing test specimen, cushion cap surface rain water
Material moisture content is impacted.
8) building block and pipeline of the present invention etc. are all made of modularization, detachably, easy to use；The present invention makes full use of
Experimental site is readily disassembled, using rainwater circulating technology, solve experimenter can not accurately monitor built under rainfall environment it is more
The water-cut variation problem of Porous materials；
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the detachable rainfall simulator of enclosing type for building.
Fig. 2 is the actual measured results figure of 1 device of application drawing.
It is shown in figure：Rainfall nozzle 1, transparent preservative film 2, frame 3, metal hold water platform 4, hollow out metal specimen cushion cap 5, examination
Test test specimen 6, needle-shaped test specimen support 7, rain gage bucket 8, rain water filtering device 9, water tank 10, water inlet pipe 11, variable frequency pump 12, electronic box 13,
Data connecting line 14, valve 16, electronic computer 17, outlet pipe 18, outlet pipe supporting rack 19, latches 20, is transparent return pipe 15
Preservative film side roller shutter 21.
Specific implementation mode
To more fully understand the present invention, the present invention will be further described below with reference to the drawings, but the implementation of the present invention
Mode is unlimited so.
A kind of detachable rainfall simulator of enclosing type for building, including rainfall nozzle 1, transparent preservative film 2, frame 3, gold
Category holds water platform 4, hollow out metal specimen cushion cap 5, experiment test specimen 6, needle-shaped test specimen support 7, rain gage bucket 8, rain water filtering device 9, water tank
10, water inlet pipe 11, variable frequency pump 12, electronic box 13, data connecting line 14, return pipe 15, valve 16, electronic computer 17, water outlet
Pipe 18, outlet pipe supporting rack 19, lock 20, transparent preservative film side roller shutter 21；Frame 3 is preferably hollow cuboid, by pvc pipe
Material is connected to form by cross bar and upright bar；The setting of frame 3 is held in metal on water platform 4；Transparent preservative film 2 is arranged in the outer of frame 3
In week, it is inside and outside two layers to enclose the number of plies；Transparent preservative film side roller shutter 21 is arranged in the side of frame 3；Transparent preservative film side volume
Curtain 21 cuts off three faces by the transparent preservative film of outer layer, and the transparent preservative film of internal layer cuts square orifice and formed；Water tank 10 passes through water inlet pipe
11 are connected with 12 one end of variable frequency pump；12 other end of variable frequency pump is connected with outlet pipe 18；Outlet pipe 18 and 15 one end of return pipe
Connection, 15 other end joining water box 10 of return pipe, return pipe 15 are equipped with backwater valve 16；Outlet pipe 18 by lock 20 with go out
Water pipe supporting rack 19 connects；The end connection rainfall nozzle 1 of outlet pipe 18, rainfall nozzle 1 is arranged in the top center position of frame 3
It sets；Experiment test specimen 6 is placed in needle-shaped test specimen support 7, and needle-shaped test specimen support 7 is arranged on hollow out metal specimen cushion cap 5, experiment
Test specimen 6, needle-shaped test specimen support 7 and 5 entirety of hollow out metal specimen cushion cap are positioned over immediately below rainfall nozzle 1；Rain gage bucket 8 is positioned over
Metal is held on water platform 4.Metal holds the center setting rainwater refluxing opening of water platform 4, and rainwater refluxing opening is equipped with rain water filtering device 9；Water
Case 10 is arranged in 5 lower end of hollow out metal specimen cushion cap, and rain water filtering device 9 is connect with metal water tank 10.Electronic box 13 is connected by data
Wiring 14 is connect with electronic computer 17 and rain gage bucket 8 respectively；Electronic box 13 is also connect with variable frequency pump 12；
Setting intelligent frequency-conversion feedback regulation device (PID regulator) in electronic box 13, the drop that can be arranged according to computer 17
Raininess degree, the power of feedback regulation variable frequency pump 12 so as to adjust the water-jet velocity of rainfall nozzle 1, and then adjust rainfall intensity；
Setting electromagnetic type switchs in electronic box 13, the program being arranged by electronic computer 17, starts and stops variable frequency pump 12 and use
Electronic box control water pump, rain gage bucket, electronic box connect computer, by rain gage bucket collect data, feedback frequency modulation control variable frequency pump, to
Adjust rainfall intensity.
Frame 3, metal hold the size of water platform 4 and rainfall nozzle 1 held with metal can be according to field experiment at a distance from water platform 4
The variation range of ground size and required rainfall intensity carries out autonomous Design, mainly meets enough rainfall spaces, prevents rainfall empty
Between too small cause rainwater to fall the backwash on transparent preservative film 2 to return, influence Rainfall Homogeneity.
Rainfall nozzle 1 uses the special rainfall nozzles of Si Purui, is suspended from right over the center of rainfall space using vertical supporting bar；
Rainfall nozzle 1 adjusts rainfall intensity ranging from 0.5mm/min~2.5mm/min, meets construction material rainfall requirement；Using electronic box
Connection computer is controlled.
Transparent preservative film 2 surrounds 3 surrounding of frame to form rainfall space, prevents rainwater spluttering, ensure that the controllable of rainwater
Property processed；Rainfall surrounding volume is enclosed using film class transparent material, 3 side of frame is arranged transparent preservative film side roller shutter 21, is
Be open roller shutter structure, can monitor test specimen change of moisture content at any time, and experiment test specimen 6 is placed before experiment can also be opened on by this.
Hollow out metal specimen cushion cap 5 is waterproof cushion cap, and metal holds water platform 4 and was equipped with 2% gradient slope from four weeks to center, engraves
The center of empty metal specimen cushion cap 5 is equipped with rainwater refluxing opening, and rainwater refluxing opening is equipped with rain water filtering device 9, for recycling rainwater.
The water inlet pipe 11 of the water inlet end of variable frequency pump 12 is equipped with rain water filtering device 9, prevents variable frequency pump from blocking.
Return pipe 15 is set on outlet pipe 18, and return pipe 15 is equipped with valve 16, for supplementing 12 degree of regulation of variable frequency pump
Deficiency, finely tune rainfall intensity, satisfaction manually control demand, can be also used for braking in emergency circumstances, prevent water pump from occurring
Frequency conversion is slipped up, and flow is excessive, destroys rainfall nozzle.
Experiment test specimen 6 is placed on using point supporting way in needle-shaped test specimen support 7, and needle-shaped test specimen support 7 is arranged in hollow out
On metal specimen cushion cap 5, rainwater when avoiding placing experiment test specimen accompanying by support interface itself generates experimental result dry
It disturbs.
Electronic computer 17 uses notebook or desktop computer, can identify that USB turns RS-232 Serial Port Line serial ports letter
Number, it being capable of experimental data stabilization transmission.
The present invention makes full use of experimental site, is readily disassembled, and using rainwater circulating technology, solving experimenter can not be accurate
The water-cut variation problem of porous material is really built under monitoring rainfall environment；To the laboratory of pumping equipment is not arranged, solve
Not the problem of traditional rainfall simulator rainwater pollution ground does not allow disposable and rainwater that can not recycle.
Building block and pipeline of the present invention etc. are all made of modularization, detachably, easy to use.
Apparatus of the present invention mainly hold water platform 4, hollow out metal specimen cushion cap 5, experiment by transparent preservative film 2, frame 3, metal
Test specimen 6,7 combination of needle-shaped test specimen support provide test environment；Test environment ensure that should not be handled caused by rainwater spluttering asks
Topic, meanwhile, it in turn ensures that rainwater recycle utilizes, is convenient for measuring；Test specimen is placed in needle-shaped test specimen support 7, the guarantor of maximum possible
Upper surface contact rainwater is demonstrate,proved, when avoiding placing test specimen, cushion cap surface rain water impacts material moisture content.
A kind of detachable rainfall simulator of enclosing type for building of the present invention has following features：
1) rainfall intensity can be independently arranged by program in electronic box electronic computer 17 of the present invention, have intelligent frequency-conversion in electronic box 13
Feedback regulation device (PID regulator), the rainfall intensity that can be arranged according to computer 17, the work(of feedback regulation variable frequency pump 12
Rate so as to adjust the water-jet velocity of rainfall nozzle 1, and then adjusts rainfall intensity, and whole process operates very simple, and result can
Control property is higher.
2) present invention uses the rainfall space of enclosing type, while using rainwater recycle so that rainfall becomes controllable, is easy to room
It is used in the interior laboratory without draining setting；Integral demounting installation is also very convenient；Size can be according to the needs of oneself
It is adjusted.
3) water cut changing law for monitoring material of weighing can be passed through in real time.
Using the method that the detachable rainfall simulator of enclosing type for building tests experiment test specimen, including walk as follows
Suddenly：
1) it before testing, weighs after experiment test specimen 6 is dried postcooling to constant weight, record initial weight m0(g)；By rain gage bucket
8, which are placed on metal, holds on water platform 4, is located at the side of hollow out metal specimen cushion cap 5, and it is strong that rainfall is arranged by electronic computer 17
Degree, by the PID regulator feedback regulation water pump frequency in electronic box 13, makes rainfall intensity reach requirement of experiment.Rain gage bucket 8 passes through
Cable is connected with computer.Rainfall intensity is set by computer first, the PID regulator in computer control electronic box makes spray head
1 starts spray water spray, and rain gage bucket can record rainfall and pass computer, the number that computer program passes rain gage bucket back back by cable in real time
According to rainfall intensity is calculated as, when rainfall intensity reaches setting rainfall intensity and continual and steady half an hour can be tested.Examination
It tests rain gage bucket and is placed on metal and hold on water platform 4, be located at the side of hollow out metal specimen cushion cap 5, rainfall during monitoring and test
The variation of intensity is more than setting value to prevent the caused rainfall intensity out of control of spray head 1, plays the role of monitoring.
2) by treated, experiment test specimen 6 is positioned in needle-shaped test specimen support 7, is started to test, can be passed through every t (s) saturating
Bright preservative film side roller shutter 21 takes out test specimen, is positioned over the water content that material is detected on balance, then weighing for n-th is denoted as
mn(g).Using (mn‐m0) it is ordinate, the water drenching time cumulation duration nt taken out every time is abscissa, can obtain material moisture content
Change with time rule, and n is natural number.
The present invention encloses rainfall space using transparent plastic film, and lower section is arranged rainwater adapting table, is preventing rainwater spluttering
While, recycling rainwater realization recycles；Roller shutter is arranged in film side, and experimenter can be facilitated to take out test specimen and weighed, and examines
Test block water-cut variation；Electronic box is connected using computer program, by feedback regulation control water pump, to control rainfall nozzle
Flow velocity realizes the accurate adjusting of rainfall intensity；All equipments are all made of modularization assembling, easy to disassemble, carry, can be according to space
Size, which voluntarily assembles, meets requirement of experiment.
Fig. 2 is to be directed to a kind of pervious concrete brick for building, and sample dimensions are 100 × 100 × 60mm, rainfall intensity setting
For 1.5mm/min, electronic computer 17 passes through the data of rain gage bucket, feedback regulation drop by the way that rainfall intensity 1.5mm/min is arranged
The test result of raininess degree, Fig. 2 shows that the water content of material linearly increases with the growth of rainfall intensity.When test,
The rainfall intensity of selection is all the peak rainfall intensity tested territory of use of brick body material institute and often occurred, such rainfall intensity
It is representative, it can accurately test out whether material will produce runoff under this area's peak rainfall intensity, this is for saturating
It is critically important index for water material.If the result of Fig. 2 illustrates that the rate that brick body drinks up the rain is more than rainfall intensity, also
To say when this type brick is applied in this kind of environment, less than this rainfall intensity in the case of brick body surface not will produce diameter
Stream, can generate better effect.
The rainfall simulator of the prior art can only obtain the moisture content after material rainfall, it is more difficult to aqueous to weigh material
Rate with rainfall intensity variation relation because can not weigh at any time, and test method of the present invention can preferably solve the problems, such as it is such.
Claims (10)
1. a kind of detachable rainfall simulator of enclosing type for building, which is characterized in that including rainfall nozzle, transparent preservative film,
Transparent preservative film side roller shutter, frame, metal hold water platform, hollow out metal specimen cushion cap, the support of needle-shaped test specimen, rain gage bucket, rainwater
Filter, water tank, variable frequency pump, electronic box, data connecting line and electronic computer；The frame is hollow-core construction；Frame is arranged
It is held on water platform in metal；Transparent preservative film is arranged in the periphery of frame, and it is inside and outside two layers to enclose the number of plies；Transparent preservative film side volume
Curtain is arranged in the side of frame；Water tank is connected by water inlet pipe with variable frequency pump one end；The variable frequency pump other end and outlet pipe phase
Even；Outlet pipe is connected to return pipe one end, the other end joining water box of return pipe, and return pipe is equipped with backwater valve；Outlet pipe
End connect rainfall nozzle, experiment test specimen to be measured is placed in the support of needle-shaped test specimen, and needle-shaped test specimen support is arranged in hollow out
On metal specimen cushion cap, under experiment test specimen, the support of needle-shaped test specimen and hollow out metal specimen cushion cap are integrally positioned over rainfall nozzle just
Side；Rain gage bucket is positioned over metal and holds on water platform；Metal holds the center setting rainwater refluxing opening of water platform, and rainwater refluxing opening is equipped with rain
Water filter；Water tank is arranged in hollow out metal specimen cushion cap lower end, and rain water filtering device is connect with metal water tank；Electronic box passes through data
Connecting line is connect with electronic computer and rain gage bucket respectively；Electronic box is also connect with variable frequency pump；Setting intelligent frequency-conversion is anti-in electronic box
Present regulating device and electromagnetic type switch.
2. the detachable rainfall simulator of enclosing type for building according to claim 1, which is characterized in that the frame is
Hollow rectangular parallelepiped structure is connected to form by PVC pipe by cross bar and upright bar.
3. the detachable rainfall simulator of enclosing type for building according to claim 1, which is characterized in that the transparent guarantor
Fresh film side roller shutter cuts off three faces by the transparent preservative film of outer layer, and the transparent preservative film of internal layer cuts square orifice and formed.
4. the detachable rainfall simulator of enclosing type for building according to claim 1, which is characterized in that the outlet pipe
It is connect with outlet pipe supporting rack by latching.
5. the detachable rainfall simulator of enclosing type for building according to claim 1, which is characterized in that the rainfall spray
The top center in frame is arranged in head.
6. the detachable rainfall simulator of enclosing type for building according to claim 1, which is characterized in that the rainfall spray
Head uses the special rainfall nozzles of Si Purui, is suspended from right over the center of rainfall space using vertical supporting bar.
7. the detachable rainfall simulator of enclosing type for building according to claim 1, which is characterized in that the electrometer
Calculation machine uses notebook or desktop computer.
8. the detachable rainfall simulator of enclosing type for building according to claim 1, which is characterized in that the hollow out gold
Category test specimen cushion cap is waterproof cushion cap；The metal holds water platform and was equipped with 2% gradient slope from four weeks to center.
9. the detachable rainfall simulator of enclosing type for building according to claim 1, which is characterized in that the rain gage bucket
Using meteorology standard rain gage bucket.
10. the method that application rainfall simulator described in claim 1 tests experiment test specimen, it is characterised in that including
Following steps：
1) it before testing, will weigh after experiment test specimen drying postcooling to constant weight, record initial weight m0；
2) rain gage bucket is placed on metal to hold on water platform, is located at the side of hollow out metal specimen cushion cap, is set by electronic computer
Rainfall intensity is set, by the PID regulator feedback regulation water pump frequency in electronic box, rainfall intensity is made to reach test request；
3) by step 1), treated that experiment test specimen is positioned in the support of needle-shaped test specimen, passes through every time interval t transparent fresh-keeping
Film side roller shutter takes out test specimen, is positioned over the water content that material is detected on balance, and weighing for n-th is denoted as mn；Using (mn‐
m0) it is ordinate, the water drenching time cumulation duration nt taken out every time is abscissa, and material moisture content changes with time rule, n
Take natural number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810270805.6A CN108458946A (en) | 2018-03-29 | 2018-03-29 | A kind of detachable rainfall simulator of enclosing type for building and test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810270805.6A CN108458946A (en) | 2018-03-29 | 2018-03-29 | A kind of detachable rainfall simulator of enclosing type for building and test method |
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| CN108458946A true CN108458946A (en) | 2018-08-28 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856004A (en) * | 2019-03-12 | 2019-06-07 | 上海理工大学 | The experimental provision and measurement method of packing weight in wet base measurement |
| CN110249878A (en) * | 2019-07-04 | 2019-09-20 | 山东农业大学 | A kind of small raininess cold mist type artificial rain simulating device and its application method |
| CN110553946A (en) * | 2019-08-07 | 2019-12-10 | 中国水利水电科学研究院 | experimental device and method for rapidly measuring rainfall interception rate in field |
| CN111389611A (en) * | 2020-03-20 | 2020-07-10 | 重庆广播电视大学重庆工商职业学院 | Detachable rainfall simulation device and method for building |
| CN112730095A (en) * | 2020-12-30 | 2021-04-30 | 长安大学 | Multi-factor coupling simulation test device and method for service performance of permeable pavement |
| CN113009596A (en) * | 2021-02-19 | 2021-06-22 | 西北工业大学 | Rainfall monitoring device |
| CN113838293A (en) * | 2021-10-11 | 2021-12-24 | 特路（北京）科技有限公司 | Rain and fog environment test field and test method suitable for intelligent automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856004A (en) * | 2019-03-12 | 2019-06-07 | 上海理工大学 | The experimental provision and measurement method of packing weight in wet base measurement |
| CN110249878A (en) * | 2019-07-04 | 2019-09-20 | 山东农业大学 | A kind of small raininess cold mist type artificial rain simulating device and its application method |
| CN110249878B (en) * | 2019-07-04 | 2024-10-18 | 山东农业大学 | Heavy-rain strong-cold-fog type artificial rainfall simulation device and application method thereof |
| CN110553946A (en) * | 2019-08-07 | 2019-12-10 | 中国水利水电科学研究院 | experimental device and method for rapidly measuring rainfall interception rate in field |
| CN111389611A (en) * | 2020-03-20 | 2020-07-10 | 重庆广播电视大学重庆工商职业学院 | Detachable rainfall simulation device and method for building |
| CN112730095A (en) * | 2020-12-30 | 2021-04-30 | 长安大学 | Multi-factor coupling simulation test device and method for service performance of permeable pavement |
| CN113009596A (en) * | 2021-02-19 | 2021-06-22 | 西北工业大学 | Rainfall monitoring device |
| CN113009596B (en) * | 2021-02-19 | 2022-08-30 | 西北工业大学 | Rainfall monitoring device |
| CN113838293A (en) * | 2021-10-11 | 2021-12-24 | 特路（北京）科技有限公司 | Rain and fog environment test field and test method suitable for intelligent automobile |
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