CN203350209U - Device for synchronously tracking and measuring micro heat change of gas-solid adsorption process - Google Patents
Device for synchronously tracking and measuring micro heat change of gas-solid adsorption process Download PDFInfo
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Abstract
The utility model discloses a device for synchronously tracking and measuring a micro heat change of a gas-solid adsorption process, and belongs to the field of gas-solid adsorption. The device comprises a gas source system, a vacuum system, a gas metering system, a gas-solid adsorption system, a temperature difference control system, a power calibration system and a data collection and valve control system. The volume of a solid adsorption gas is metered with a constant volume method; the pressure change of the adsorption process is measured through a high-accuracy pressure sensor; by the aid of a data optimization algorithm and a gross error elimination algorithm, a change curve of the gas adsorption capacity in the adsorption process is acquired; the loss of micro heat in the adsorption process is reduced by delay of a heat insulating layer and a differential thermal screen; the synchronous change of the temperature of the thermal screen and the temperature in a testing cavity is kept through temperature difference control, and a temperature change curve is acquired; and an adsorption heat change rule is acquired through instrument parameters and integral curves, the rule is compared with the gas adsorption capacity curve, and analysis is performed, so that a rule of the influence of the adsorption heat change on the gas adsorption capacity is acquired. According to the device, the test process is automatic, the pressure and temperature control accuracy is high, and the operation is convenient.
Description
Technical field
The utility model belongs to the gas-solid adsorption field, relates to device and the assay method of the micro-thermal change of a kind of synchronous tracking and measuring gas-solid adsorption process, is suitable for obtaining the Changing Pattern of synchronizeing of gas absorption amount and heat of adsorption in solid absorption gas process.
Background technology
Gas-solid adsorption refers to the suction-operated of gas at solid surface, comprises physisorption and chemisorption, and gas molecule because molecular kinetic energy reduces, is usually followed exothermic phenomenon after solid surface absorption.Physisorption is generally to the gas non-selectivity, and absorption is often carried out with desorption simultaneously, has reversible characteristics, and exotherm and condensation heat are close, and such absorption is usually used in the chemical processes such as gas purification, separation and purification; Chemisorption mostly is irreversible process, and heat of adsorption and chemical reaction heat are suitable, and such absorption is usually used in the technological processs such as catalysis, reaction and reduction.No matter be physisorption or chemisorption, after adsorption equilibrium, adsorbance and heat of adsorption are on a declining curve with the rising of temperature.Describing the most basic characteristic parameter of gas-solid adsorption process is equilibrium adsorption capacity and balance heat of adsorption, the equilibrium adsorption process can't be described its change procedure by reaction kinetics equation as chemical reaction, and reflect productive capacity and reliability by the dynamic perfromance of adsorbing often in the engineering application, for example, pressure-variable adsorption is to complete separating of gas with various by frequent change gas with the solid contact, gas and solid adsorbance and heat of adsorption at short notice plays a decisive role to technological process, and the equilibrium adsorption data can't meet design and production requirement.Therefore, the dynamics data of mensuration gas-solid adsorption process is the key addressed the above problem.
Gas is heat release in adsorption process, in desorption process, absorb heat, due to the difference of process conditions and working environment, heat absorption can form metastable temperature field after reaching thermal equilibrium with heat release, and this temperature field is having a strong impact on the adsorptive separation effect of adsorbent to gas.The heat of measuring the gas-solid adsorption process has important effect for instructing to produce, and still, heat of adsorption is usually less, and traditional direct calorimetry, adsorption isotherm collimation method, differential scanning calorimetry and chromatography etc. can't realize the kinetic measurement of low-grade fever amount.For example, direct calorimetry is suitable for measuring the reaction of a large amount of heat releases; The adsorption isotherm collimation method is that equilibrium state is measured; The differential scanning calorimetric analysis temperature variation is interval large, and sample is carried out to the active heating, is suitable for the processes such as metal melting, burning and phase transformation; Chromatography needs carrier gas to work together, and can not, for the High Pressure Absorption measuring process, also can't measure adsorbance.Therefore, for the high-pressure process of gas-solid adsorption, the absorption heat is little, gas is single and the characteristics such as dynamic change, needs a kind of device and assay method with the micro-thermal change of synchronous tracking and measuring gas-solid adsorption process of specialized designs.
Summary of the invention
The purpose of this utility model is to develop device and the assay method of the micro-thermal change of a kind of synchronous tracking and measuring gas-solid adsorption process, make the variation of Microcalorimetry in adsorption process keep synchronizeing with the variation of gas absorption amount, mensurated gas composition adsorbance and the heat of adsorption transient curve from an equilibrium state to another equilibrium state, time constant by this curve reflects the affect rule of heat of adsorption on the gas absorption amount, made up the deficiency of the dynamic changing process of each parameter when the static balancing method is difficult to obtain gas absorption, for experimental study and engineering design provide Technical Reference.
The device of the micro-thermal change of a kind of synchronous tracking and measuring gas-solid adsorption process, adopt the volume of constant volume method metering solid absorption gas, measure the variation of adsorption process pressure by high-precision pressure sensor, reject algorithm in conjunction with data-optimized algorithm and gross error, obtain adsorption process gas absorption quantitative change curve, adopt heat insulation layer and differential thermal heat shielding to postpone to reduce scattering and disappearing of adsorption process low-grade fever amount, control and keep the heat shielding temperature to synchronize and change with survey chamber body internal temperature by the temperature difference, obtain temperature variation curve, obtain the heat of adsorption Changing Pattern by instrument parameter and integrated curve, with the comparative analysis of gas absorption discharge curve, obtain heat of adsorption and change the rule that affects on the gas absorption amount, this device is by air supply system, vacuum system, gas metering system, the gas-solid adsorption system, temperature control system, power calibration system and data acquisition and valve control system seven parts form.
Wherein said air supply system is comprised of helium gas cylinder, helium reduction valve, helium gas admittance valve, gas gas cylinder to be measured, gas pressure reducer to be measured, gas gas admittance valve to be measured and separator tube road.The helium gas cylinder stores high-pressure helium, and gas gas cylinder to be measured stores high pressure gas to be measured, and because helium and gas to be measured are permanent gas, pressure is higher, need to pass through respectively helium reduction valve and gas pressure reducer to be measured and reduce to the required pressure of work.The buffering pipeline is the cavity pipeline between helium gas admittance valve, vacuum valve, measurement chamber gas admittance valve and gas gas admittance valve to be measured, for buffer-stored gas to be measured and helium.Helium gas admittance valve and gas gas admittance valve to be measured are the programmed control sealed electromagnetic valve, for controlling helium and gas to be measured enters the buffering pipeline.
Described vacuum system is comprised of vacuum valve and vacuum pump.Vacuum valve is the programmed control solenoid valve, and when vacuum valve is opened, the gas in the buffering pipeline drains into atmosphere through vacuum pump.Vacuum pump is the oil sealing sliding-vane-type vacuum pump, and its Absolute truth reciprocal of duty cycle can reach 0.1Pa.
Described gas metering system is comprised of measurement chamber gas admittance valve, equalizing valve, measurement chamber, pressure transducer and temperature sensor.Measurement chamber gas admittance valve and equalizing valve are the programmed control sealed electromagnetic valve, and the measurement chamber gas admittance valve flows into from the separator tube road or flows out measurement chamber for controlling gas, and equalizing valve is for controlling gas from the measurement chamber inflow or flowing out the gas-solid adsorption system.Measurement chamber is for measuring the gas of certain molal quantity, the volume of measurement chamber is measured by drainage, the number of moles of gas that inside fills is calculated and is obtained by metering chamber volume, gaseous tension and gas thermometer according to the equation of gas state, the equation of gas state comprises the Ideal-Gas Equation, van der Waals equation and virial equation, determines the use of the equation of gas state according to the pressure and temperature of gas.Pressure transducer and measurement chamber are by the air seal thread seal, and its pressure limit is no more than full test pressure, and precision is less than 0.2%.Temperature sensor adopts armouring I level thermopair to be connected with measurement chamber.
Described gas-solid adsorption system is comprised of filter, seal flange, elevated-temperature seal pad, fastening bolt, test chamber shell, heat insulation layer, adsorbent, interior thermocouple sheath, test chamber shell and test chamber.The filter material is macromolecular material, adopt clearance fit to be placed in the pipeline between equalizing valve and seal flange, the elevated-temperature seal pad adopts high-temperature material to be processed as the donut pad, be placed between the seal flange top and bottom, fastening bolt tightens together seal flange and elevated-temperature seal pad, guarantees the high pressure-temperature gas tightness.It is cylindric that heat insulation layer adopts high-temperature material to be processed as, and seal flange one side is opening, and opposite side is that hollow out, remainder is shut except retaining interior thermocouple sheath and heating rod sleeve pipe place, and heat insulation layer is for stoping heat loss.The test chamber shell adopts stainless steel, guarantees to bear high-voltage performance and welding performance.It is blind end that interior thermocouple sheath stretches to test chamber one side, and the end that is connected with the test chamber bottom is opening, by welding technology and test chamber shell, welds together, and guarantees gas tightness.
Described temperature control system is comprised of heat shielding heater strip, heat shielding heater strip service cable, heat shielding soaking cover, interior thermopair, interior thermopair positive pole, interior thermopair negative pole, outer thermopair, outer thermopair positive pole, outer thermopair negative pole and temperature control instrument.The heat shielding heater strip is connected with temperature control instrument by heat shielding heater strip service cable, regulate heat shielding heater strip size of current by temperature control instrument, the heat shielding heater strip is coated by heat shielding soaking cover, the heat that the heat shielding heater strip produces carries out Homogeneouslly-radiating by heat shielding soaking cover, inwardly heat is reached to the test chamber shell, the test chamber shell is heated up, outwards directly scatter and disappear to environment.Interior thermopair is placed in interior thermocouple sheath.Outer thermopair is placed between test chamber shell and heat shielding soaking cover, and interior thermopair is anodal to be connected with temperature control instrument with interior thermopair negative pole, measures the test chamber internal temperature.Interior thermopair positive pole is connected with outer thermopair is anodal, interior thermopair negative pole is connected with temperature control instrument with outer thermopair negative pole, measure the poor of heat shielding soaking cover temperature and test chamber internal temperature, temperature difference signal input temperature control instrument, temperature difference positive feedback control algolithm by temperature control instrument realizes zero temperature difference control, when the test chamber internal temperature raises, the inner temperature difference that produces of heat shielding soaking cover and test chamber, temperature control instrument is to heat shielding heater strip output heating current, heat shielding soaking cover temperature is raise, when both temperature differences are zero, the output heating current is zero, be that heat shielding soaking cover and test chamber inside remain uniform temp, thereby realize thermodynamic barrier, stop the inner heat loss produced of test chamber.
Described power calibration system is comprised of heating rod, heating rod sleeve pipe, heating rod cable and power meter.Heating rod is connected with power meter by the heating rod cable, according to the given power of power meter, is heated.The heating rod sleeve pipe is the stainless steel sleeve, an end opening, other end closure, closing end stretches in test chamber, and openend and test chamber weld together, and guarantees the high-pressure tightness of test chamber, heating rod is placed in the heating rod sleeve pipe, by heating rod sleeve pipe metallic walls, to test chamber, conducts heat.Power meter is connected by PORT COM with host computer, and according to host computer setting-up time and power, to the heating rod output current, it adds heat and is calculated by time and power product.
Described data acquisition and valve control system are comprised of data acquisition and valve controling circuit plate and host computer.Data acquisition and valve controling circuit plate receive the standard signal of pressure transducer and temperature sensor, and electric current and voltage analog signal are converted into to digital signal, by communication interface, import host computer into.Host computer calculates and sets the output control signal according to program, data acquisition and valve controling circuit plate are converted into analog control signal by digital control signal, and opening and closing of each valve controlled in output, realizes program control function.
The operating process of the device of the micro-thermal change of described a kind of synchronous tracking and measuring gas-solid adsorption process is as follows: at first, the certain mass adsorbent is placed in to test chamber inside, be filled to and cover interior thermocouple sheath and heating rod cannula tip, elevated-temperature seal pad and seal flange are installed, with fastening bolt, seal, close all valves, open vacuum pump, open successively vacuum valve, measurement chamber gas admittance valve and equalizing valve, after pressure sensor reading is lower than appointment Absolute truth reciprocal of duty cycle, close successively equalizing valve, measurement chamber gas admittance valve and vacuum valve, open power meter, set heat time heating time and heating power, pass through temperature control instrument, data acquisition and valve controling circuit plate and host computer are measured interior thermopair heating curve and difference variation curve, always add heat by calculating heating power and heat time heating time, corresponding instrument constant while obtaining filling the certain mass adsorbent according to interior thermopair heating curve and difference variation curve calculation, then, open helium reduction valve and helium gas admittance valve, helium is filled with to the buffering pipeline, open the measurement chamber gas admittance valve, make helium enter measurement chamber, close the measurement chamber gas admittance valve, calculate the molal quantity of helium according to the equation of gas state, pressure sensor readings and temperature sensor reading, open equalizing valve, read the pressure transducer indicating value after gas pressure balancing, according to metering chamber volume, calculate the test chamber dead-volume, secondly, close the helium gas admittance valve, open successively vacuum valve, measurement chamber gas admittance valve and equalizing valve, helium in test chamber is extracted, after in test chamber, the Absolute truth reciprocal of duty cycle drops to setting value, close successively equalizing valve, measurement chamber gas admittance valve and vacuum valve, open gas pressure reducer to be measured and gas gas admittance valve to be measured, make gas to be measured be filled with the buffering pipeline, open the measurement chamber gas admittance valve, close the measurement chamber gas admittance valve after gaseous tension is stable, measure the pressure of gas to be measured, utilize the equation of gas state, pressure transducer and temperature sensor indicating value are calculated the molal quantity of gas to be measured, open equalizing valve, measure the pressure transducer pressure history, according to this curve, temperature sensor indicating value and metering chamber volume are calculated the molal quantity that gas to be measured reduces, the number of moles of gas of being adsorbed by solid adsorbent, according to interior thermopair heating curve, the difference variation curve that interior thermopair and outer thermopair form and instrument constant are calculated thermal change value in adsorption process, thereby obtain the Dynamic Adsorption thermal distortion curve corresponding with the gas absorption amount, complete the mensuration process.
Described interior thermopair and outer thermopair can adopt other model thermopairs that meet the temperature-controlled precision requirement.
Described heat shielding soaking cover can adopt the material processing and fabricatings such as red copper, aluminium or stainless steel that heat conductivility is good.
Described temperature sensor can adopt the temperature elements such as the thermal resistance that meets the temperature measurement accuracy requirement, thermistor.
The heating of the heating rod center that the utility model proposes, temperature difference heat galvanic couple thermometric and synchronize temperature control, heat insulation layer and combine the mode such as thermal resistance with heat shielding and guaranteed the reliable and stable of this contrive equipment test performance, simple and convenient, that research gas-solid adsorption process gas adsorbance is synchronizeed the efficient apparatus of variation with heat of adsorption, be applicable to the absorption of various gas and solid under different temperatures, different pressures, as required can also mensurated gas composition and the exothermic process of solid reaction, more clearly understand and adsorb and the dynamic variation rule of course of reaction.
The accompanying drawing explanation
Fig. 1 is the principle of work schematic diagram of the utility model device;
In Fig. 1: 1. helium gas cylinder; 2. helium reduction valve; 3. helium gas admittance valve; 4. gas gas cylinder to be measured; 5. gas pressure reducer to be measured; 6. gas gas admittance valve to be measured; 7. buffering pipeline; 8. vacuum valve; 9. vacuum pump; 10. measurement chamber gas admittance valve; 11. measurement chamber; 12. pressure transducer; 13. temperature sensor; 14. equalizing valve; 15. filter; 16. elevated-temperature seal pad; 17. seal flange; 18. fastening bolt; 19. test chamber shell; 20. heat insulation layer; 21. adsorbent; 22. test chamber; 23. heating rod sleeve pipe; 24. heating rod; 25. heating rod cable; 26. heat shielding heater strip; 27. heat shielding soaking cover; 28. heat shielding heater strip service cable; 29. interior thermocouple sheath; 30. interior thermopair; 31. interior thermopair negative pole; 32. interior thermopair positive pole; 33. outer thermopair; 34. outer thermopair positive pole; 35. outer thermopair negative pole; 36. temperature control instrument; 37. power meter; 38. data acquisition and valve controling circuit plate; 39. host computer;
Embodiment
The utility model example is measured the dynamic process of 13X molecular sieve adsorption carbon dioxide, select the 13X molecular sieve 60.000g that particle mean size is 0.2mm, be loaded in test chamber, elevated-temperature seal pad and seal flange are installed, with fastening bolt, seal, close all valves, open vacuum pump, open successively vacuum valve, measurement chamber gas admittance valve and equalizing valve, after pressure sensor reading is lower than Absolute truth reciprocal of duty cycle 0.1Pa, close successively equalizing valve, measurement chamber gas admittance valve and vacuum valve, open power meter, setting heat time heating time is 30s, heating power is 50W, pass through temperature control instrument, data acquisition and valve controling circuit plate and host computer are measured interior thermopair heating curve and difference variation curve, always adding heat by heating power and calculating heat time heating time is 1500J, corresponding instrument constant while obtaining filling the certain mass adsorbent according to interior thermopair heating curve and difference variation curve calculation, then, open helium reduction valve and helium gas admittance valve, helium is filled with to the buffering pipeline, open the measurement chamber gas admittance valve, make helium enter measurement chamber, close the measurement chamber gas admittance valve, calculate the molal quantity of helium according to the Ideal-Gas Equation, diffuse si solids pressure sensor reading and Pt1000 thermal resistance temperature sensor reading, open equalizing valve, read diffuse si solids pressure sensor indicating value after gas pressure balancing, according to metering chamber volume, calculate the test chamber dead-volume, secondly, close the helium gas admittance valve, open successively vacuum valve, measurement chamber gas admittance valve and equalizing valve, helium in test chamber is extracted, after in test chamber, the Absolute truth reciprocal of duty cycle drops to 0.1Pa, close successively equalizing valve, measurement chamber gas admittance valve and vacuum valve, open gas pressure reducer to be measured and gas gas admittance valve to be measured, make gas to be measured be filled with the buffering pipeline, open the measurement chamber gas admittance valve, close the measurement chamber gas admittance valve after gaseous tension is stable, measure the pressure of gas to be measured, utilize the Ideal-Gas Equation, diffuse si solids pressure sensor reading and Pt1000 thermal resistance temperature sensor indicating value are calculated the molal quantity of gas to be measured, open equalizing valve, measure diffuse si solids pressure cell pressure change curve, according to this curve, Pt1000 thermal resistance temperature sensor indicating value and metering chamber volume are calculated the molal quantity that gas to be measured reduces, the number of moles of gas of being adsorbed by solid adsorbent, according to the T-shaped interior thermopair heating curve of I level, difference variation curve and instrument constant that the T-shaped outer thermopair of the T-shaped interior thermopair of I level and I level forms are calculated thermal change value in adsorption process, obtain the Dynamic Adsorption thermal distortion curve corresponding with the gas absorption amount, complete the mensuration process.
Claims (6)
1. the device of the micro-thermal change of synchronous tracking and measuring gas-solid adsorption process, is characterized in that this device is comprised of air supply system, vacuum system, gas metering system, gas-solid adsorption system, temperature control system, power calibration system and data acquisition and valve control system seven parts;
Wherein said air supply system is comprised of helium gas cylinder (1), helium reduction valve (2), helium gas admittance valve (3), gas gas cylinder to be measured (4), gas pressure reducer to be measured (5), gas gas admittance valve to be measured (6) and separator tube road (7); Helium gas cylinder (1) stores high-pressure helium, and gas gas cylinder to be measured (4) stores high pressure gas to be measured; Buffering pipeline (7) is the cavity pipeline between helium gas admittance valve (3), vacuum valve (8), measurement chamber gas admittance valve (10) and gas gas admittance valve to be measured (6);
Described vacuum system is comprised of vacuum valve (8) and vacuum pump (9); Vacuum valve (8) is the programmed control solenoid valve, and when vacuum valve (8), while opening, the gas in buffering pipeline (7) drains into atmosphere through vacuum pump (9);
Described gas metering system is comprised of measurement chamber gas admittance valve (10), equalizing valve (14), measurement chamber (11), pressure transducer (12) and temperature sensor (13); Measurement chamber gas admittance valve (10) and equalizing valve (14) are the programmed control sealed electromagnetic valve, measurement chamber gas admittance valve (10) flows into or flows out measurement chamber (11) from separator tube road (7) for controlling gas, and equalizing valve (14) flows into or outflow gas-solid adsorption system from measurement chamber (11) for controlling gas; Pressure transducer (12) is with measurement chamber (11) by the air seal thread seal, and temperature sensor adopts armouring I level thermopair to be connected with measurement chamber;
Described gas-solid adsorption system is comprised of filter (15), seal flange (17), elevated-temperature seal pad (16), fastening bolt (18), test chamber shell (19), heat insulation layer (20), adsorbent (21), interior thermocouple sheath (29), test chamber shell (19) and test chamber (22); Filter (15) adopts clearance fit to be placed in the pipeline between equalizing valve (14) and seal flange (17), elevated-temperature seal pad (16) is placed between seal flange (17) top and bottom, fastening bolt (18) tightens together seal flange (17) and elevated-temperature seal pad (16), guarantees the high pressure-temperature gas tightness; It is cylindric that heat insulation layer (20) adopts high-temperature material to be processed as, and seal flange (17) one sides are opening, and opposite side is located as hollow out except retaining interior thermocouple sheath (29) and heating rod sleeve pipe (23), and remainder is shut; Test chamber shell (19) adopts stainless steel, guarantees to bear high-voltage performance and welding performance; It is blind end that interior thermocouple sheath (29) stretches to test chamber (22) one sides, and the end that is connected with test chamber (22) bottom is opening, by welding technology and test chamber shell (19), welds together;
Described temperature control system is comprised of heat shielding heater strip (26), heat shielding heater strip service cable (28), heat shielding soaking cover (27), interior thermopair (30), interior thermopair anodal (32), interior thermopair negative pole (31), outer thermopair (33), outer thermopair anodal (34), outer thermopair negative pole (35) and temperature control instrument (36); Heat shielding heater strip (26) is connected with temperature control instrument (36) by heat shielding heater strip service cable (28), regulate heat shielding heater strip (26) size of current by temperature control instrument (36), heat shielding heater strip (26) is coated by heat shielding soaking cover (27), the heat that heat shielding heater strip (26) produces carries out Homogeneouslly-radiating by heat shielding soaking cover (27), inwardly heat is reached to test chamber shell (19), test chamber shell (19) is heated up, outwards directly scatter and disappear to environment; Interior thermopair (30) is placed in interior thermocouple sheath (29), outer thermopair (33) is placed between test chamber shell (19) and heat shielding soaking cover (27), interior thermopair anodal (32) is connected with outer thermopair anodal (34), interior thermopair anodal (32) is connected with temperature control instrument (36) with interior thermopair negative pole (31), measures test chamber (22) internal temperature; Interior thermopair negative pole (31) is connected with temperature control instrument (36) with outer thermopair negative pole (35), measures the poor of heat shielding soaking cover (27) temperature and test chamber (22) internal temperature;
Described power calibration system is comprised of heating rod (24), heating rod sleeve pipe (23), heating rod cable (25) and power meter (37); Heating rod (24) is connected with power meter (37) by heating rod cable (25), according to the given power of power meter (37), is heated; Heating rod sleeve pipe (23) is the stainless steel sleeve, one end opening, other end closure, closing end stretches in test chamber (22), openend and test chamber (22) weld together, guarantee the high-pressure tightness of test chamber (22), heating rod (24) is placed in heating rod sleeve pipe (23), by heating rod sleeve pipe (23) metallic walls, to test chamber (22), conducts heat; Power meter (37) is connected by PORT COM with host computer (39);
Described data acquisition and valve control system are comprised of data acquisition and valve controling circuit plate (38) and host computer (39).
2. the device of the micro-thermal change of a kind of synchronous tracking and measuring gas-solid adsorption process as claimed in claim 1, is characterized in that the helium gas admittance valve (3) of air supply system and gas gas admittance valve to be measured (6) are the programmed control sealed electromagnetic valve.
3. the device of the micro-thermal change of a kind of synchronous tracking and measuring gas-solid adsorption process as claimed in claim 1, is characterized in that the vacuum pump (9) of vacuum system is the oil sealing sliding-vane-type vacuum pump, and its Absolute truth reciprocal of duty cycle reaches 0.1Pa.
4. the device of the micro-thermal change of a kind of synchronous tracking and measuring gas-solid adsorption process as claimed in claim 1, it is characterized in that in the gas-solid adsorption system, elevated-temperature seal pad (16) adopts high-temperature material to be processed as the donut pad, it is cylindric that heat insulation layer (20) adopts high-temperature material to be processed as, and test chamber shell (19) adopts stainless steel.
5. the device of the micro-thermal change of a kind of synchronous tracking and measuring gas-solid adsorption process as claimed in claim 1, is characterized in that
Heat shielding soaking cover adopts good red copper, aluminium or the stainless steel processing and fabricating of heat conductivility.
6. the device of the micro-thermal change of a kind of synchronous tracking and measuring gas-solid adsorption process as claimed in claim 1, is characterized in that temperature sensor adopts the thermal resistance, the thermistor temperature detecting element that meet the temperature measurement accuracy requirement to substitute.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817268A (en) * | 2017-10-20 | 2018-03-20 | 北京科技大学 | The device and method of testing for the measure solution specific heat capacity that heated up using approximatioss |
| CN108120657A (en) * | 2017-12-08 | 2018-06-05 | 中国矿业大学 | The device and assay method of a kind of automatic synchronization measurement gases at high pressure adsorbance and heat of adsorption |
| CN111830080A (en) * | 2020-06-22 | 2020-10-27 | 航天材料及工艺研究所 | Precise adiabatic calorimeter and calorimetric method thereof |
| CN113418822A (en) * | 2021-05-28 | 2021-09-21 | 虚静科技(广州)有限责任公司 | Gas saturation adsorption capacity tester and testing method thereof |
-
2013
- 2013-05-07 CN CN 201320239974 patent/CN203350209U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817268A (en) * | 2017-10-20 | 2018-03-20 | 北京科技大学 | The device and method of testing for the measure solution specific heat capacity that heated up using approximatioss |
| CN108120657A (en) * | 2017-12-08 | 2018-06-05 | 中国矿业大学 | The device and assay method of a kind of automatic synchronization measurement gases at high pressure adsorbance and heat of adsorption |
| CN111830080A (en) * | 2020-06-22 | 2020-10-27 | 航天材料及工艺研究所 | Precise adiabatic calorimeter and calorimetric method thereof |
| CN113418822A (en) * | 2021-05-28 | 2021-09-21 | 虚静科技(广州)有限责任公司 | Gas saturation adsorption capacity tester and testing method thereof |
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