CN204903430U - Isothermal storage test appearance - Google Patents
Isothermal storage test appearance Download PDFInfo
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- CN204903430U CN204903430U CN201520538746.8U CN201520538746U CN204903430U CN 204903430 U CN204903430 U CN 204903430U CN 201520538746 U CN201520538746 U CN 201520538746U CN 204903430 U CN204903430 U CN 204903430U
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Abstract
The utility model discloses an isothermal storage test appearance. The utility model discloses comprise experimental box, apparent accuse case, low -temperature constant -temperature circulator, refrigerant pipeline, frame, experimental box is supported by the frame, and the case is controlled for showing in the next door, through the refrigerant pipe connection between experimental box and the low -temperature constant -temperature circulator. Experimental box comprises experimental furnace body and case shell, experimental furnace body parcel is in the case shell, and experimental furnace body contains ring cowling under upper portion furnace body, middle furnace body, lower part furnace body, soaking piece, thermal current detecting element, first platinum resistance, second platinum resistance, third platinum resistance, container, test chamber, system cold dish, the outer torus shell of furnace body, the furnace body. The utility model discloses a low -temperature constant -temperature circulator and heater strip combination are used, have realized temperature range autoacceleration decomposition temperature's test between - 20 DEG C -200 DEG C, have enlarged the experimental scope of isothermal.
Description
Technical field
The utility model belongs to dangerous material qualification classification field, relates to a kind of isothermal storage test instrument.
Background technology
SADT is a very important secure data weighing the comprehensive effect yardstick of the thermal transport property of environment temperature, decomposing level, parcel post size, material and container thereof, and it can carry out effectively evaluating to the thermal hazard of material.The danger transport Committee of Experts of the United Nations proposes 4 kinds of practicalities, reliably assay method to SADT: American assay method, adiabatic storage experimental method, isothermal storage experimental method and accumulation of heat store experimental method.These experimental determining methods are in the laboratory study stage, and there is no relevant proving installation, accuracy of measurement is low, poor stability.
Summary of the invention
The purpose of this utility model is to provide a kind of isothermal storage test instrument, this test instrument can realize the SADT of Accurate Measurement material by less sample size, and automatic report generation, its accuracy is high, security is good, and test method and appraisal procedure meet four kinds of " testing H.3: isothermal storage test " measured in material SADT method that the danger transport Committee of Experts of the United Nations is recommended.
The technical scheme that the utility model technical solution problem is taked is:
The utility model by testing casing, aobvious control case, cryogenic thermostat circulator, refrigerant pipe, frame form, test casing is supported by frame, and side is aobvious control case, and test casing is connected by refrigerant pipe with between cryogenic thermostat circulator;
Described test casing is by testing body of heater and case shell forms; Test body of heater is wrapped in case shell, and test body of heater comprises ring cowling under upper furnace body, middle body of heater, lower volume, soaking block, hot-fluid detecting element, the first platinum resistance, the second platinum resistance, the 3rd platinum resistance, container, test chamber, chill plate, body of heater outer annular shell, body of heater; Upper furnace body is positioned at case shell upper cover, intermediate furnace body is positioned on the upside of lower volume, connected by mounting flange, the external side of intermediate furnace is wrapped up by body of heater outer annular shell, is screwed, ring cowling under body of heater has been screwed below lower volume, there is through hole at lower volume center, and for the lead-in wire of temperature sensor and refrigerant pipe, body of heater support plate to be positioned under body of heater below ring cowling, be screwed, play a part to support body of heater; Upper furnace body, middle body of heater and lower volume are made up of insulating and heater strip, heater strip is evenly imbedded in insulating, the distribution of heater strip meets lower volume heating power 400W, middle body of heater heating power 900W, upper furnace body heating power 300W; Middle body of heater is hollow, inner placement soaking block and chill plate, and chill plate is positioned at the below of soaking block, and is screwed between lower volume, and the refrigerant pipe other end connecting chill plate is connected with cryogenic thermostat circulator; Soaking block is solid cylindrical aluminium block, and there is gap between middle body of heater, two columniform test chambers are had in soaking block, for packaging container and hot-fluid detecting element, hot-fluid detecting element is positioned at bottom test chamber, and its lead-in wire is through block and chill plate, pass from chill plate lateral aperture, hot-fluid detecting element is close to the container of top, and upper vessel portion has test plug or sealing-plug, forms a part for soaking block; First platinum resistance is vertically placed in the centre of soaking block, with straight joint, refrigerant pipe and temperature sensor is fixed on the through hole of lower volume; Second platinum resistance is perpendicular to sample receiver sidewall; 3rd platinum resistance vertically stands on sidewall of the furnace body, between soaking block and middle body of heater;
Described aobvious control case comprises temperature control modules, data acquisition module, display module, calibration module and tentative module; Temperature control modules stores body of heater in experimental test procedures temperature for realizing isothermal controls, temperature control scope-20 DEG C-200 DEG C, and temperature control deviation is lower than ± 0.2 DEG C; Data acquisition module is for gathering the differential heat flow data in furnace body temperature and test process between testing sample and standard reference thing; Display module adopts liquid crystal display to realize, and available keyboard or touch-screen operate, and are convenient to man-machine interaction; Calibration module is for determining that the blank signal of instrument exports and sensitivity correction; Tentative module is used for the SADT of test substances, by in-furnace temperature and differential heat flow data, instrument calculates SADT voluntarily, heat generation rate measurement range 5mw/kg ~ 5w/kg, resolution: 5mw/kg, being 30% during heat generation rate measuring error 15mw/kg, is 5% during 100 ~ 1500mw/kg;
Described cryogenic thermostat circulator is used for providing refrigerant.
On the basis adopting technique scheme, the utility model also can adopt following further technical scheme:
The hot-fluid detecting element of described isothermal storage test instrument is connected to form by two peltier-element differentials;
The beneficial effect that the utility model has is: combinationally used by cryogenic thermostat circulator and heater strip, achieves the test of temperature range SADT between-20 DEG C ~ 200 DEG C, expands the scope of isothermal test; Realize multi-spots temperature control by three, upper, middle and lower well heater, reduce the undulatory property of constant temperature; Adopt high sensitivity heat flux sensor differential to connect, accurately can measure hot-fluid, decrease sample use amount simultaneously, improve Security of test; There is calibration mode, facilitate the metering of test instrument, improve test accuracy.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
Fig. 2 is box-section figure of the present utility model.
Fig. 2 a, Fig. 2 b are the 2 d plane picture of casing of the present utility model
In figure: 1. aobvious control case, 2. frame, 3. test casing, 4. test body of heater, 5. refrigerant pipe, 6. cryogenic thermostat circulator, 7. case shell, 4-1. chill plate, 4-2. test chamber, 4-3. soaking block, ring cowling on 4-4. body of heater, 4-5. body of heater outer annular shell, ring cowling under 4-6. body of heater, 4-7. lower volume, 4-8. body of heater support plate, body of heater in the middle of 4-9., 4-10. the first platinum resistance, 4-11. the second platinum resistance, 4-12. the 3rd platinum resistance, 4-13. heater strip, 4-14. insulating, 4-15. straight joint, 4-16. container, 4-17. upper furnace body, 4-18. hot-fluid detecting element.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, this instrument by showing control case 1, test casing 3, cryogenic thermostat circulator 6, refrigerant pipe 5, frame 2 form, test casing 3 side is aobvious control case 1, and test casing 3 is connected by refrigerant pipe 5 with between cryogenic thermostat circulator 6, and test casing 3 is supported by frame 2.
Test casing is by testing body of heater 3 and case shell 7 forms; Test body of heater 3 is wrapped in case shell 7; As shown in Fig. 2 and Fig. 2 a, Fig. 2 b, test body of heater 3 to comprise on upper furnace body 4-17, middle body of heater 4-9, lower volume 4-7, soaking block 4-3, hot-fluid detecting element 4-184-18, the first platinum resistance 4-10, the first platinum resistance 4-11, the 3rd platinum resistance 4-12, container 4-16, test chamber 4-2, chill plate 4-1, body of heater ring cowling 4-6 under ring cowling 4-4, body of heater outer annular shell 4-5, body of heater; Upper furnace body 4-17 is positioned at case shell 7 upper cover, middle body of heater 4-9 is positioned on the upside of lower volume 4-7, connected by mounting flange, wrapped up by body of heater outer annular shell 4-5 outside middle body of heater 4-9, be screwed, ring cowling under body of heater has been screwed below lower volume 4-7, there is through hole at lower volume center, and for the lead-in wire of temperature sensor and refrigerant pipe etc., body of heater support plate to be positioned under body of heater below ring cowling 4-6, be screwed, play a part to support body of heater; Upper furnace body 4-17, middle body of heater 4-9 and lower volume 4-7 are made up of insulating 4-14 and heater strip 4-13, heat-insulating heat-preserving material adopts ceramic alumina fiber, heater strip is evenly imbedded in insulating, consider body of heater uniform temperature, the thermal convection effect of body of heater clearance and the power demand of instrument, distribution through simulating, verifying heater strip should meet lower volume 4-7 heating power 400W, middle body of heater 4-9 heating power 900W, upper furnace body 4-17 heating power 300W; Middle body of heater 4-9 is hollow, inner placement soaking block 4-3 and chill plate 4-1, and chill plate 4-1 is positioned at the below of soaking block 4-3, and is screwed between lower volume 4-7, and the refrigerant pipe other end connecting chill plate 4-1 is connected with cryogenic thermostat circulator; Soaking block 4-3 is solid cylindrical aluminium block, and there is gap between middle body of heater 4-9, two columniform test chamber 4-2 are had in soaking block 4-3, for packaging container and hot-fluid detecting element 4-18, hot-fluid detecting element 4-18 is positioned at bottom test chamber 4-2, its lead-in wire is through block and chill plate 4-1, pass from chill plate 4-1 lateral aperture, hot-fluid detecting element 4-18 is close to the container of top, upper vessel portion has test plug or sealing-plug, form a part of soaking block 4-3, available tweezers press from both sides out, conveniently fill sample; Container 4-16 comprises sample receiver and reference container, container 4-16 is placed in the test chamber 4-2 in soaking block 4-3, be used for holding testing sample and standard reference thing, standard reference thing is the inert substance that hot physical property is stable, container volume is 70 cubic centimetres, the material mass that each container fills is about 20g, there are glass specimen container and stainless steel sample receiver, when material can react with stainless steel, with glass container, the kapillary that one long is equipped with when using glass container, in case container inner pressure raises or sample evaporation; First platinum resistance 4-10 is vertically placed in the centre of soaking block 4-3, with straight joint, refrigerant pipe and temperature sensor are fixed on the through hole of lower volume 4-7, for temperature controls to provide temperature signal, described platinum resistance correlation parameter is: Graduation Number Pt100, level accuracy A level, probe protection tubes length 62mm, probe protection tubes material SUS304, probe protection tubes diameter of phi 3mm, temperature-measuring range-50 DEG C-450 DEG C, lead-in wire material is Teflon shielding line, and lead-in wire line is made as three-wire system; First platinum resistance 4-11 is perpendicular to sample receiver sidewall, for determining the actual work temperature of sample, described platinum resistance correlation parameter is: Graduation Number Pt100, level accuracy A level, probe protection tubes length 68mm, probe protection tubes material SUS304, probe protection tubes diameter of phi 3mm, temperature-measuring range-50 DEG C-450 DEG C, lead-in wire material is Teflon shielding line, and lead-in wire line is made as three-wire system; 3rd platinum resistance 4-12 vertically stands on sidewall of the furnace body, between soaking block 4-3 and middle body of heater 4-9, when sidewall of the furnace body temperature is higher than a certain limit value, alerting signal is sounded, described platinum resistance correlation parameter is: Graduation Number Pt100, level accuracy A level, probe protection tubes length 132mm, probe protection tubes material SUS304,, probe protection tubes diameter of phi 3mm, temperature-measuring range-50 DEG C-450 DEG C, lead-in wire material is Teflon shielding line, and lead-in wire line is made as three-wire system;
Aobvious control case 1 comprises temperature control modules, data acquisition module, display module, calibration module and tentative module; Temperature control modules stores body of heater in experimental test procedures temperature for realizing isothermal controls, temperature control scope-20 DEG C-200 DEG C, and temperature control deviation is lower than ± 0.2 DEG C; Data acquisition module is for gathering the differential heat flow data in furnace body temperature and test process between testing sample and standard reference thing; Display module comprises display screen, status indicator lamp, power switch and alarm buzzer, display screen is eight inch liquid crystal display screens, be positioned at above display and control panel, operate by keyboard or touch-screen, state display lamp is positioned at below display screen, be followed successively by test, calibration, power light from left to right, display screen, status indicator lamp, power switch, alarm buzzer signal are connected with system control unit respectively, send corresponding indicator signal and alerting signal; Calibration module is for determining that the blank signal of instrument exports and sensitivity correction, due to different containers, the character of sample, hot-fluid size can cause sensor blank signal at different temperatures and sensitivity to have slight difference, so need the calibration carrying out some row test preset temperature points; Tentative module is used for the SADT of test substances, by in-furnace temperature and differential heat flow data, instrument can calculate SADT voluntarily, heat generation rate measurement range 5mw/kg ~ 5w/kg, resolution: 5mw/kg, being 30% during heat generation rate measuring error 15mw/kg, is 5% during 100 ~ 1500mw/kg; Described cryogenic thermostat circulator 6 is for providing refrigerant.
The course of work of this device is: click the main interface of the display screen button that " enters test ", enter test, test interface display test name, test number, trystate, countdown, temperature, sample signal, blank signal, sensitivity, temperature-time curve, sample signal-time curve.Click " starting characteristics test " button, interface prompt " please add sample! "; by after weighed in advance sample to add in sample receiver (needing at the end of experiment again to weigh; the change with weight before and after determining to test); sample size is about 20g; if packing container is the words of metal; wherein also need to comprise the quantity necessarily representing packing container, the reference material of same amount is put into reference container.After adding sample, shut test operation district upper cover, click " determination " on display screen, " PLSCONFM test temperature and sample size " is ejected at interface, inputs predetermined temperature, sample size with soft keyboard, reach balance required time, balances the rear time of continuing.Input completes, and clicks " confirmation " button, and interface prompt " is clicked after please opening cryogenic thermostat circulator and determined! "; open cryogenic thermostat circulator by interface prompt; click " determination "; interface prompt " blank signal and sensitivity confirm "; confirm one by one calibration date, temperature, power, blank signal, sensitivity respectively with the dropdown arrow on the right side of soft keyboard or hurdle, space, click after completing " is determined ".After on-test, interface real-time rendering Temperature-time, sample signal-time curve.After waiting for that the experiment of first temperature spot terminates, the heat generation rate of material at this temperature is ejected at interface, clicks and determines the experiment that can enter next temperature spot.Click " starting characteristics test ", and change sample, if now furnace temperature is higher than 40 DEG C, for preventing high temperature, heat injury is produced to operating personnel, will point out " open cryogenic thermostat circulator and determine ", click " determination ", after waiting temperature drops to safe temperature, eject " close cryogenic thermostat circulator and determine ", and the experiment of next temperature spot after clicking " determination ", can be entered.Now need change sample and set correlation parameter.Off-test, after " power supply " key of closing cryogenic thermostat circulator and back power switch thereof, clicks " determination ".Instrument will be chosen 7 maximum heat generation rate results and calculates SADT and eject Excel test findings form.
Above-mentioned embodiment is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all drop into protection domain of the present utility model.
Claims (2)
1. isothermal storage test instrument, be made up of test casing, aobvious control case, cryogenic thermostat circulator, refrigerant pipe, frame, it is characterized in that: test casing is supported by frame, side is aobvious control case, and test casing is connected by refrigerant pipe with between cryogenic thermostat circulator;
Described test casing is by testing body of heater and case shell forms; Test body of heater is wrapped in case shell, and test body of heater comprises ring cowling under upper furnace body, middle body of heater, lower volume, soaking block, hot-fluid detecting element, the first platinum resistance, the second platinum resistance, the 3rd platinum resistance, container, test chamber, chill plate, body of heater outer annular shell, body of heater; Upper furnace body is positioned at case shell upper cover, intermediate furnace body is positioned on the upside of lower volume, connected by mounting flange, the external side of intermediate furnace is wrapped up by body of heater outer annular shell, is screwed, ring cowling under body of heater has been screwed below lower volume, there is through hole at lower volume center, and for the lead-in wire of temperature sensor and refrigerant pipe, body of heater support plate to be positioned under body of heater below ring cowling, be screwed, play a part to support body of heater; Upper furnace body, middle body of heater and lower volume are made up of insulating and heater strip, heater strip is evenly imbedded in insulating, the distribution of heater strip meets lower volume heating power 400W, middle body of heater heating power 900W, upper furnace body heating power 300W; Middle body of heater is hollow, inner placement soaking block and chill plate, and chill plate is positioned at the below of soaking block, and is screwed between lower volume, and the refrigerant pipe other end connecting chill plate is connected with cryogenic thermostat circulator; Soaking block is solid cylindrical aluminium block, and there is gap between middle body of heater, two columniform test chambers are had in soaking block, for packaging container and hot-fluid detecting element, hot-fluid detecting element is positioned at bottom test chamber, and its lead-in wire is through block and chill plate, pass from chill plate lateral aperture, hot-fluid detecting element is close to the container of top, and upper vessel portion has test plug or sealing-plug, forms a part for soaking block; First platinum resistance is vertically placed in the centre of soaking block, with straight joint, refrigerant pipe and temperature sensor is fixed on the through hole of lower volume; Second platinum resistance is perpendicular to sample receiver sidewall; 3rd platinum resistance vertically stands on sidewall of the furnace body, between soaking block and middle body of heater;
Described aobvious control case comprises temperature control modules, data acquisition module, display module, calibration module and tentative module; Temperature control modules stores body of heater in experimental test procedures temperature for realizing isothermal controls, temperature control scope-20 DEG C-200 DEG C, and temperature control deviation is lower than ± 0.2 DEG C; Data acquisition module is for gathering the differential heat flow data in furnace body temperature and test process between testing sample and standard reference thing; Display module adopts liquid crystal display to realize, and available keyboard or touch-screen operate, and are convenient to man-machine interaction; Calibration module is for determining that the blank signal of instrument exports and sensitivity correction; Tentative module is used for the SADT of test substances, by in-furnace temperature and differential heat flow data, instrument calculates SADT voluntarily, heat generation rate measurement range 5mw/kg ~ 5w/kg, resolution: 5mw/kg, being 30% during heat generation rate measuring error 15mw/kg, is 5% during 100 ~ 1500mw/kg;
Described cryogenic thermostat circulator is used for providing refrigerant.
2. isothermal storage test instrument as claimed in claim 1, is characterized in that: hot-fluid detecting element is connected to form by two peltier-element differentials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538746.8U CN204903430U (en) | 2015-07-23 | 2015-07-23 | Isothermal storage test appearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538746.8U CN204903430U (en) | 2015-07-23 | 2015-07-23 | Isothermal storage test appearance |
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| CN204903430U true CN204903430U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520538746.8U Expired - Fee Related CN204903430U (en) | 2015-07-23 | 2015-07-23 | Isothermal storage test appearance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588854A (en) * | 2016-02-26 | 2016-05-18 | 中国计量学院 | Quick temperature scanning screening calorimeter |
| CN108680285A (en) * | 2018-08-14 | 2018-10-19 | 上海市计量测试技术研究院 | The calibration method of short branch electric thermo-couple temperature verification stove and short branch thermocouple |
-
2015
- 2015-07-23 CN CN201520538746.8U patent/CN204903430U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588854A (en) * | 2016-02-26 | 2016-05-18 | 中国计量学院 | Quick temperature scanning screening calorimeter |
| CN105588854B (en) * | 2016-02-26 | 2018-12-07 | 中国计量学院 | Fast temperature scanning screening calorimeter |
| CN108680285A (en) * | 2018-08-14 | 2018-10-19 | 上海市计量测试技术研究院 | The calibration method of short branch electric thermo-couple temperature verification stove and short branch thermocouple |
| CN108680285B (en) * | 2018-08-14 | 2024-06-07 | 上海市计量测试技术研究院 | Short thermocouple temperature calibration furnace and short thermocouple calibration method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20200723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |