CN208366887U - A kind of phase transition process monitoring device and its monitoring system - Google Patents
A kind of phase transition process monitoring device and its monitoring system Download PDFInfo
- Publication number
- CN208366887U CN208366887U CN201820266174.6U CN201820266174U CN208366887U CN 208366887 U CN208366887 U CN 208366887U CN 201820266174 U CN201820266174 U CN 201820266174U CN 208366887 U CN208366887 U CN 208366887U
- Authority
- CN
- China
- Prior art keywords
- box body
- transition process
- phase transition
- metal foil
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000008569 process Effects 0.000 title claims abstract description 42
- 230000007704 transition Effects 0.000 title claims abstract description 41
- 238000012806 monitoring device Methods 0.000 title claims abstract description 23
- 238000012544 monitoring process Methods 0.000 title abstract description 17
- 239000011888 foil Substances 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000012212 insulator Substances 0.000 claims abstract description 27
- 239000012782 phase change material Substances 0.000 claims abstract description 26
- 238000012946 outsourcing Methods 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000011496 polyurethane foam Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 8
- 238000004146 energy storage Methods 0.000 abstract description 8
- 238000004321 preservation Methods 0.000 abstract description 8
- 239000011232 storage material Substances 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 230000009466 transformation Effects 0.000 description 11
- 238000003860 storage Methods 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910021389 graphene Inorganic materials 0.000 description 4
- 229940018564 m-phenylenediamine Drugs 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000011231 conductive filler Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910021485 fumed silica Inorganic materials 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polysiloxanes Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- UXHQLGLGLZKHTC-CUNXSJBXSA-N 4-[(3s,3ar)-3-cyclopentyl-7-(4-hydroxypiperidine-1-carbonyl)-3,3a,4,5-tetrahydropyrazolo[3,4-f]quinolin-2-yl]-2-chlorobenzonitrile Chemical compound C1CC(O)CCN1C(=O)C1=CC=C(C=2[C@@H]([C@H](C3CCCC3)N(N=2)C=2C=C(Cl)C(C#N)=CC=2)CC2)C2=N1 UXHQLGLGLZKHTC-CUNXSJBXSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- AVARUSFPOCEPNL-UHFFFAOYSA-N oxolane;propane Chemical compound CCC.C1CCOC1 AVARUSFPOCEPNL-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011533 pre-incubation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Abstract
The utility model relates to a kind of phase transition process monitoring device and monitoring systems, including box body, central electrode and external electrode, central electrode is that one end is set to tray interior, the other end passes through the insulator stick that box body center of top hole is stretched out outside box body, insulator stick is coated with metal foil, and the metal foil on insulator stick top is connect, in addition to the metal foil that the part outsourcing connecting with conducting wire is overlying on outside insulator stick is coated with insulated paint with conducting wire；External electrode is the metal foil for being set to box body periphery, and the metal foil is connect with conducting wire；The utility model further relate to include above-mentioned phase transition process monitoring device monitoring system.The technical solution of the utility model is stable and reliable for performance, error is small, low energy consumption, can be powered by battery；Can carry out real-time monitoring to the phase transition process of energy storage materials of phase change can calculate the fusing duration of phase-change material so as to quantify the progress of phase transition process in advance, to obtain heat preservation duration, be of great significance for cold chain transportation work.
Description
Technical field
The utility model relates to monitor system regions, and in particular to a kind of phase transition process monitoring device and its monitoring system.
Background technique
The storage of energy is realized and utilizes to be to make energy science in recent years and material supply section using the latent heat of phase change of phase-change material
A very active research direction in.Phase-changing energy storage material occurs energy with environment and hands over during it undergoes phase transition
It changes, to achieve the effect that control environment temperature.In order to adapt to the needs of China's Cold Chain Logistics industry fast development, cold chain need to be reinforced
The monitoring and early warning for transporting the research and development of corollary equipment, especially heat preservation the temperature inside the box are the important directions studied at present.Mesh
Use phase-change material cold-storage device such as ice chest as the cold source inside incubator in preincubation case, for the heat of phase-change material more
The analytical technology prior art generally comprises hot calorimeter method, differential thermal analysis, differential scanning calorimetry, transient hot wire technique etc., but on
Method is stated to be detected in the presence of more demanding to sample size, unsuitable real-time online and the phase transition process situation of phase-change material is provided
Information, can not transformation behavior of the accurate characterization phase-change material in large scale, and there are equipment it is many and diverse it is huge, be not easy to make
The shortcomings that using.
The utility model, which provides, a kind of can carry out real-time monitoring, to the phase transition process of energy storage materials of phase change so as to measuring
The phase transition process monitoring device and its monitoring system for changing the progress of phase transition process, can accurately calculate the phase-change material of incubator in advance
Fusing duration so that obtain the heat preservation duration of incubator, have important reference significance for cold chain transportation work.
Summary of the invention
The purpose of this utility model is to provide a kind of phase transition process monitoring device and its monitoring systems, can be to phase-changing energy-storing
The phase transition process of material carries out real-time monitoring, the progress so as to quantify phase transition process, can accurately calculate incubator in advance
The fusing duration of phase-change material and then the heat preservation duration for obtaining incubator.
To achieve the above object, the technical solution of the utility model are as follows: a kind of phase transition process monitoring device, including box body,
It further include central electrode and external electrode, the central electrode is that one end is set to tray interior, the other end passes through at the top of box body
Medium pore stretches out the insulator stick outside box body, and the insulator stick is coated with metal foil, the metal foil on insulator stick top with
Conducting wire connects, in addition to the metal foil that the part outsourcing connecting with conducting wire is overlying on outside insulator stick is coated with insulated paint；It is described
External electrode is the metal foil for being set to box body periphery, and the metal foil is connect with conducting wire；Between the insulator stick and box body
To be detachably connected.
Further, tray interior is filled with phase-change material, and the volume of phase-change material is the 80-85% of tray interior volume；
Further, insulator stick upper end is provided with plug, removable by buckle or screw thread between plug and box body
Unload connection；
Further, by being sealed by silicone waterproof gasket cement between plug and box body；
Further, the metal foil on insulator stick top connect with conducting wire with the metal foil of conducting wire, box body periphery and passes through
Welding or conductive adhesive；
Further, conductive adhesive is epoxyn.
The invention also discloses a kind of phase transition process to monitor system, including phase transition process monitoring device as described above
And incubator, observation circuit, observation circuit are set in incubator, the monitoring device is electrically connected with observation circuit.
Further, the incubator includes cabinet and case lid, and it is exhausted that cabinet ecto-entad is disposed with insulating layer, vacuum
Hot plate layer, liner, the insulating layer are rigid polyurethane foams matter；
Further, the case lid ecto-entad is disposed with insulating layer, vacuum heat-insulating plate layer, liner, the heat preservation
Layer is rigid polyurethane foams matter.
The utility model has the advantages that
1) the phase transition process monitoring device device of the utility model is stable and reliable for performance, error is small, low energy consumption, can pass through electricity
Pond is powered；
2) can to the phase transition process of energy storage materials of phase change carry out real-time monitoring, so as to quantify phase transition process into
Degree, can calculate the thawing duration of phase-change material in advance, to obtain heat preservation duration, have important meaning for cold chain transportation work
Justice.
Detailed description of the invention
Fig. 1 is that the cold-storage ice chest phase transition process of the utility model monitors sensor the schematic diagram of the section structure.
Fig. 2 is that the cold-storage ice chest phase transformation of the utility model monitors the observation circuit schematic diagram of sensor.
Wherein appended drawing reference is as follows:
1- box body, 2- insulating bar, 3- box body center of top hole, the metal foil on 4- insulator stick top, 5- conducting wire.
Specific embodiment
A kind of phase transition process monitoring device device, including inside be filled with the closed box body 1 of phase-change material, central electrode and
External electrode, the central electrode are that one end is set to inside box body 1, the other end passes through box body center of top hole 3 and stretches out box body
Outer insulator stick 2, the insulator stick are coated with metal foil, and the metal foil 4 on insulator stick top connect with conducting wire 5, removes
The metal foil that the part outsourcing connecting with conducting wire 5 is overlying on outside insulator stick is coated with insulated paint；The external electrode is
It is set to the metal foil of box body periphery, the metal foil is connect with conducting wire；It is detachably to connect between the insulator stick and box body
It connects.
Above-mentioned phase transition process monitoring device device have structure is simple, manufacturing cost is low, it is easy for installation, stable and reliable for performance,
Error is small, low energy consumption, the advantages of being powered by battery, can be convenient for cold chain transportation company in discovery phase-changing energy storage material
Cold storage capacity be insufficient for taking measures to be intervened in advance in the case where actual demand, such as increase ice chest or replacement ice chest.
The measuring principle of the utility model is monitoring in low measurement frequency, particular comparator, the condition of particular measurement circuit
Under, variation that capacitance occurs with degree of transformation.The theoretical foundation of the utility model is phase-change material especially polarity insulation phase
Liquid and the solid dielectric constants for becoming material are very big, such as the dielectric constants of ice and water are very big, and water is normal
Under temperature, dielectric constant is about 81, and the dielectric constant of pure water ice is about 4.In fusion process, ice water mixing ratio changes ice,
The capacitance for the capacitor for causing external electrode, central electrode, box body outer wall, box substance in vivo to collectively form changes, thus
The process schedule of phase-change material fusing is predicted according to the indicatrix of capacitance variation.
Preferably, the volume of the filling phase-change material of tray interior is the 80-85% of tray interior volume；The energy density per unit volume
The influence that the volume change that box body is generated by ice water phase transformation generates box strength is effectively reduced, if the filling phase transformation of tray interior
Material volume is excessively high will to be easy to reduce box strength, if phase-change material volume will be too low to be wasted in cold chain transportation transport power and box body
The volume in portion；
Preferably, insulator stick upper end is provided with plug, it is removable by buckle or screw thread between plug and box body
Unload connection；
Above-mentioned setting is convenient to replacement and stores in the case where so that phase-changing energy storage material cold storage capacity is depleted in box body
The box body of the enough built-in phase-changing energy storage materials of cooling capacity.
Preferably, by being sealed by silicone waterproof gasket cement between plug and box body；
Preferably, the waterproof gasket cement is silicone waterproof gasket cement；
Preferably, the component of the silicone waterproof gasket cement is by weight are as follows: 20 parts of methyl tributanoximo silane,
3 parts of mixture, the ammonia third of 20 parts of hydroxy-end capped sulfydryl polysiloxanes, fumed silica and titania powder mass ratio 2:1
0.01 part of ethyl triethoxy silicane alkane；
The sealant of above-mentioned formula is effectively improved by the mixture of addition fumed silica and titania powder
Adhesive force, tear resistance and the stability of sealant, and the water resistance about 50% of sealant is improved, improve sealant
Corrosion resistance about 35%.
Preferably, the metal foil is copper foil；
Preferably, wall thickness < 3mm of the box body；
Preferably, the wall thickness of the box body is 2.3mm；
The wall thickness of above-mentioned box body can either meet requirement of the box body to intensity and fully take into account asking for phase-change material thermal resistance again
Topic.
Preferably, the diameter of insulator stick is 5mm；
Preferably, the box body material is PE, PP, PET or PVC；
Preferably, the box body is the PE material mixed with 20% parts by weight PET；
The ratio of above-mentioned box body material component can meet box body to light transmission, the requirement convenient for observing fit inside liquid level, again
Requirement of the box body for intensity, toughness, water resistance and corrosion resistance can be met, and used PE is low density polyethylene
Alkene is mixed into PET of the overall weight than 20% due to can preferably block the movement of electronics in the material, it is exhausted to improve box body
Edge 45% significantly reduces influence of the box body for dielectric constant itself, the inclined of phase transition process monitoring result can be effectively reduced
Difference.
Preferably, the metal foil on insulator stick top connect with conducting wire with the metal foil of conducting wire, box body periphery and passes through
Welding or conductive adhesive；
Preferably, conductive adhesive is the epoxyn mixed with graphene, silver powder and copper powder mixture；
Preferably, the component of the conductive adhesive includes: 20 parts of bisphenol A epoxide resin, polycyclic oxygen by weight
20 parts of propane tetrahydrofuran diglycidyl ether, 10 parts of N- ethoxy m-phenylene diamine (MPD), 0.2 part of graphene, 0.1 part of silver powder, copper powder
0.3 part；
The conducting resinl of above-mentioned formula belongs to filled conductive glue, to use in silver powder by introducing a small amount of graphene powder
It measures lower, copper powder dosage and accounts for the transport phenomena that conductive filler is effectively reduced in main situation, the electric conductivity of graphite is fairly small, but
The conducting resinl of above-mentioned formula is due to graphene sp2The hexagon plane structure formed after hydridization constitutes the skeleton of conductive filler,
Allow evenly dispersed silver powder and copper powder preferably to conduct conducting particles and be not easy to migrate to colloid surface, and improves it
Resistance to low temperature；The use of N- ethoxy m-phenylene diamine (MPD) effectively increases adhesive property.
Preferably, the box body is made of blow molding, rotational moulding or Shooting Technique.
The invention also discloses the monitoring methods of the phase transition process monitoring device device, i.e., will be supervised by phase transition process
Survey the c that fixture measuresOnlyIt substitutes into following relationship and t is calculated:
,
T is the time terminated away from phase-change material phase transformation, unit s, εLiquidI.e. the dielectric constant of phase-change material liquid, unit are
C2/(N▪ m2), εGuThat is the dielectric constant of phase-change material solid state, unit C2/(N▪ m2), k1For 0.007922, unit 1/pF,
k2It is pF N m for 5.941, unit2/(109▪C2), k3It is phase transformation in box body for potential heat value, the unit J/g, m of phase-change material
The quality of material, unit g, UθIt is W/ DEG C for incubator thermal leakage ratio, unit, Δ θ is case internal-external temperature difference absolute value, unit is
DEG C, k1、k2It is the characteristic value of cold-storage ice chest after equivalent, can be used as constant.
The invention also discloses a kind of phase transition process to monitor system, including phase transition process monitoring device as described above
Device and incubator, observation circuit, observation circuit are set in incubator, and the monitoring device is electrically connected with observation circuit.
The core component of observation circuit is the measured capacitance value chip of highly sensitive low-power consumption, is chosen in the utility model
The FDC2114 sensor of TI company of Texas Instrument.This FDC2114 sensor has high sensitivity, and time of measuring is short, cost
Low, strong antijamming capability, the features such as low in energy consumption, auxiliary element is few, peripheral interface is abundant.SENSOR0,SENSOR1,
SENSOR2 SENSOR3 is that four tunnels of the capacitance sensor being made of liquid in external electrode, central electrode, box body and box body are defeated
Incoming interface.After the extension of relay expanded circuit, the number of input interface can increase.In this programme be used only all the way into
The two poles of the earth of input interface SENSOR0 are passed through conducting wire respectively and are connected with central electrode and external electrode by row measurement.
Wherein ADDR, SCL, SDA, INTB, SD etc. be with host computer for being attached, with obtain external clock reference and with it is upper
Position machine is communicated.Host computer read the capacitance sensor of SENSOR0 connection capacitance reading after data are recorded,
Analysis and calculating.The capacitance of the capacitance sensor of SENSOR0 connection is through past parasitic capacitance value (conducting wire and measuring circuit itself
Capacitance) calculate after reading be net capacitance, unit is " pF ", it reflects " capacitor " under specific frequency a certain moment
Capacitance situation.
Preferably, the incubator includes cabinet and case lid, it is exhausted that cabinet ecto-entad is disposed with insulating layer, vacuum
Hot plate layer, liner, the insulating layer are rigid polyurethane foams matter；
Preferably, the case lid ecto-entad is disposed with insulating layer, vacuum heat-insulating plate layer, liner, the heat preservation
Layer is rigid polyurethane foams matter.
Embodiment 1
Use water as phase-change material, the c that will be measured by cold-storage ice chest phase transition process monitoring sensorOnlySubstitute into following relationship
T is calculated:
,
T is the time terminated away from phase-change material phase transformation, unit s, εWaterThat is the dielectric constant of water is 81, unit C2/(N▪
m2), εIceThat is the dielectric constant of ice is 4, unit C2/(N▪ m2), k1For 0.007922, unit 1/pF, k2For 5.941, unit
For pF N m2/(109▪ C2), k3That is the latent heat of phase change of pure water is 334, unit J/g, m are pure water quality, unit in box body
For g, UθBe W/ DEG C for incubator thermal leakage ratio, unit, Δ θ be case internal-external temperature difference absolute value, unit be DEG C, k1、k2After equivalent
For cold-storage ice chest characteristic value, can be used as constant.
Actual conditions, three sections of the accumulation of energy point of phase-change material, first stage are that the sensible heat accumulation of energy under icing condition discharges the stage
(for example -12 degree ice are to 0 degree ice), second stage is latent heat accumulator release stage (such as 0 degree of ice becomes 0 degree of water), phase III
Stage (such as 0 degree of water to 5 degree of water) is discharged for sensible heat accumulation of energy, what t was reflected is the heat preservation duration of second stage.It is carried out thawing
When, the dielectric constant of mixture of ice and water is in some numerical value between 4-81, this numerical value is directly related with degree of transformation.
Case internal-external temperature difference is that the average value of 3 temperature of cabinet wall upper, middle and lower and the difference of cabinet outside air temperature, calculation method are meter
Calculate difference.k2=S/ (4 π kd), k are electrostatic force constant.Through actual test, above-mentioned relation accuracy rate is up to 99.6%.It is sufficient for
For the phase transition process of energy storage materials of phase change in the cold-storage ice chest that is arranged in incubator in practical Cold Chain Logistics transportational process
Monitoring and observation.
- 40 ice chest equipped with the pure water for accounting for box body volume 85% is placed in 20 degree centigrade or so the good air of flowing
The net capacitance variation of middle its fusing of measurement.Phase transformation starting, the initial value of net capacitance is in 20pF or so.Ice cube in ice chest is molten
During change, the net capacitance for the capacitor being made of box body, pure water, central electrode, external electrode continuously rises.In ice chest
Ice is completely melt to maintain 100pF or so for after water, net capacitance stops changing substantially, by the above-mentioned pass of the net capacitance measured substitution
The time that phase transformation terminates can be obtained in system.
Although above having been made in detail with generality explanation and specific embodiment to the utility model (or utility model)
Most description, but on the basis of the utility model, it can be made some modifications or improvements, this is to those skilled in the art
It is obvious.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention belong to this
The claimed range of utility model.
Claims (9)
1. a kind of phase transition process monitoring device, including box body, which is characterized in that it further include central electrode and external electrode, it is described
Central electrode is that one end is set to tray interior, the other end passes through the insulator stick that box body center of top hole is stretched out outside box body, institute
It states insulator stick and is coated with metal foil, the metal foil on insulator stick top connect with conducting wire, the part in addition to connecting with conducting wire
The metal foil that outsourcing is overlying on outside insulator stick is coated with insulated paint；The external electrode is the metal for being set to box body periphery
Foil, the metal foil are connect with conducting wire；It is to be detachably connected between the insulator stick and box body.
2. phase transition process monitoring device according to claim 1, which is characterized in that tray interior is filled with phase-change material,
The volume of phase-change material is the 80-85% of tray interior volume.
3. phase transition process monitoring device according to claim 1, which is characterized in that insulator stick upper end is provided with plug
Son is detachably connected between plug and box body by buckle or screw thread.
4. phase transition process monitoring device according to claim 3, which is characterized in that by by silicone between plug and box body
Waterproof gasket cement is sealed.
5. phase transition process monitoring device according to claim 1, which is characterized in that the metal foil on insulator stick top with lead
Line, box body periphery metal foil connect with conducting wire by welding or conductive adhesive.
6. phase transition process monitoring device according to claim 5, which is characterized in that conductive adhesive is epoxy resin gluing
Agent.
7. a kind of phase transition process monitors system, which is characterized in that supervised including phase transition process as claimed in any one of claims 1 to 6
It surveys device and incubator, observation circuit, observation circuit is set in incubator, the monitoring device is electrically connected with observation circuit.
8. phase transition process according to claim 7 monitors system, which is characterized in that the incubator includes cabinet and case
Lid, cabinet ecto-entad are disposed with insulating layer, vacuum heat-insulating plate layer, liner, and the insulating layer is hard polyurethane foams
Material.
9. phase transition process according to claim 8 monitors system, which is characterized in that the case lid ecto-entad is set gradually
There are insulating layer, vacuum heat-insulating plate layer, liner, the insulating layer is rigid polyurethane foams matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820266174.6U CN208366887U (en) | 2018-02-24 | 2018-02-24 | A kind of phase transition process monitoring device and its monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820266174.6U CN208366887U (en) | 2018-02-24 | 2018-02-24 | A kind of phase transition process monitoring device and its monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208366887U true CN208366887U (en) | 2019-01-11 |
Family
ID=64922882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820266174.6U Expired - Fee Related CN208366887U (en) | 2018-02-24 | 2018-02-24 | A kind of phase transition process monitoring device and its monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208366887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195882A (en) * | 2018-02-24 | 2018-06-22 | 青岛允天保温科技有限公司 | A kind of phase transition process monitoring device and its monitoring system |
-
2018
- 2018-02-24 CN CN201820266174.6U patent/CN208366887U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195882A (en) * | 2018-02-24 | 2018-06-22 | 青岛允天保温科技有限公司 | A kind of phase transition process monitoring device and its monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104458798B (en) | In-situ test method for high-pressure low-temperature heat conductivity coefficients and heat transfer coefficients | |
| CN208366887U (en) | A kind of phase transition process monitoring device and its monitoring system | |
| CN105783838A (en) | Frozen soil depth sensor | |
| CN102359832B (en) | Rapid thermometric indicator of cigarette packages | |
| CN101936939A (en) | Saturated saline solution method for humidity calibration of humidity sensitive element for measuring micro-water contained in SF6 gas and device thereof | |
| CN110146687A (en) | Detection device and method for concrete early deformation under various environment temperatures | |
| CN106871961A (en) | Overall process, round-the-clock electromagnetic environment monitoring system and method | |
| CN105547910B (en) | The measuring device and method of low temperature slurries apparent viscosity physical property are obtained in conjunction with density measure | |
| CN102313758A (en) | Device and method for measuring heat storage coefficient of material by harmonic method based on independent sensor | |
| CN108414586A (en) | A kind of cold-storage ice chest phase transition process monitoring sensor and its monitoring method | |
| CN207976375U (en) | A kind of humiture salt fog integrated experiment device | |
| CN207096152U (en) | A kind of aluminium flake solar radiative absorption performance testing device | |
| CN108195882A (en) | A kind of phase transition process monitoring device and its monitoring system | |
| CN108226220A (en) | Temperature control anisotropic soil body heat physical property joint test device and test method | |
| CN206772875U (en) | Ice-out thermal measurement instrument | |
| CN203941304U (en) | A kind of evaporation from water surface automatic water supplement and measurement mechanism | |
| CN103668223B (en) | The long-term low temperature electrochemical performance testing device of sacrificial anode | |
| CN110440925A (en) | A kind of ultra-high-tension power transmission line overheating method for early warning | |
| CN202057621U (en) | Device for measuring heat storage coefficients of materials with harmonic wave method based on independent sensor | |
| CN205607365U (en) | Frozen soil depth sensor with bus driving force intensifier circuit | |
| CN201892711U (en) | High-power electronic component detecting device capable of providing constant-temperature and constant-humidity detecting environment | |
| CN202159003U (en) | Soil evaporation potential measuring device | |
| CN205861235U (en) | A kind of cooling stack leaving water temperature wireless measurement device | |
| CN208833331U (en) | A kind of built-in liquid nitrogen level monitoring device | |
| CN204405292U (en) | A kind of oceanic turbulence fixed point mixed instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190111 |