CN104849167A - Device for detecting isothermal adsorption and desorption of moisture of tobacco slice or cut tobacco biomass - Google Patents
Device for detecting isothermal adsorption and desorption of moisture of tobacco slice or cut tobacco biomass Download PDFInfo
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- CN104849167A CN104849167A CN201510307227.5A CN201510307227A CN104849167A CN 104849167 A CN104849167 A CN 104849167A CN 201510307227 A CN201510307227 A CN 201510307227A CN 104849167 A CN104849167 A CN 104849167A
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Abstract
The invention discloses a device for detecting isothermal adsorption and desorption of the moisture of a tobacco slice or cut tobacco biomass. The device consists of a gas mixing unit, an adsorption and desorption unit, a weighing unit and a data acquisition and control unit, wherein the gas mixing unit and the adsorption and desorption unit are respectively arranged independently. By adopting the device disclosed by the invention, a process of performing isothermal adsorption and desorption on the moisture in tobacco slices or cut tobaccos can be detected under certain temperature and humidity conditions; the moisture adsorption and desorption rates of different samples and moisture content results calculated in an equilibrium state can be acquired by analyzing the change conditions of the moisture in the samples along with the time so as to ensure that the moisture adsorption and desorption performance of biomass materials such as the tobacco slices or the cut tobaccos can be represented. The device disclosed by the invention has the advantages that an operating temperature and humidity range is wide; an adjustment range of the temperature and humidity is that the temperature is 5-90 DEG C and the relative humidity is 5-95%; and moreover, the stability of a weighing sensor under high-temperature test conditions can be ensured, and adsorption and desorption tests of the biomass materials in high-temperature environments can be achieved.
Description
Technical field
The present invention relates to a kind of device dividing isothermal adsorption/desorption for biomass water, specifically one is applied in the device of moisture isothermal adsorption and desorption process in tobacco manufacture field detection lug cigarette or pipe tobacco (living beings).
Background technology
The porous medium that sheet cigarette or pipe tobacco are made up of complicated organic substance, some changes may be produced to tobacco leaf or pipe tobacco pore structure in the heat and wet treatment of tobacco processing course, in process, adding of some outside feed liquids changes tobacco leaf or pipe tobacco Surface Physical Chemistry character simultaneously, causes moisture in process rear panel cigarette or tobacco sample under certain temperature and humidity conditions, absorb moisture and produces certain change with the ability removing moisture.When evaluating process rear panel cigarette or tobacco sample to the isothermal adsorption of moisture and desorption ability and Changing Pattern; usually multiple continuous print Mass and heat transfer process can be comprised; only having by carrying out dynamic on-line checkingi to this process, effective detecting and assessing could be carried out to sample water adsorption and desorption ability.By this evaluation known cigarette or pipe tobacco to water adsorption and desorption performance, the physics humectation effect of adding humectant, optimum storage requirement and high-temperature baking and moisture regain performance etc.
In the living beings such as sheet cigarette or pipe tobacco can there is the transport phenomenas such as adsorption and desorption in moisture under certain temperature and humidity conditions.Current most detection method is in climatic chamber, arrange different temperature and humidity conditions, carry out the detection of process, by the data that weighed off line procurement process changes, and existing commercial on-line checkingi product is the detection of below 30mg water translocation to sample bearing capacity majority, temperature controlling range (cannot lower than normal temperature) or same complete equipment cannot be utilized to complete humidity continuously adjustable experiment testing more than normal temperature.In addition, it is long that the adjustment of existing pick-up unit humidity and temperature controls the response time, and stability is difficult to meet requirement of experiment.Because water translocation process in sheet cigarette or pipe tobacco is a continuous process, so need to combine advantage that is online and off-line two kinds of methods, development is used for the device of moisture isothermal adsorption desorption in sheet cigarette or pipe tobacco.
Inventor once applied for that a patent No. was the patent of invention of 201210267723.9, its name is called " dividing the device of isothermal adsorption/desorption for biomass water ", and its principle is by regulating the flowrate proportioning of dry soft air thus reaching the humidity regulating adsorption/desorption indoor; Meanwhile, the method of water bath with thermostatic control is adopted to control the temperature of adsorption/desorption indoor, the change of example weight is by the weight of high precision balance Real-time Collection sample, achieve adsorption/desorption process on-line checkingi, the weight measuring sample can reach more than 40g, meanwhile, achieve and carry out experiment test in comparatively large-temperature range, it is shorter that the adjustment of pick-up unit humidity and temperature controls the response time.But this device has the following disadvantages in Test Application: 1) be in the reason in insulation can due to balance, so calorstat temperature should be arranged on 5 DEG C-50 DEG C, (this temperature range is the normal condition of balance, balance close to or more than 50 DEG C time, easy generation temperature drift or damage), be difficult to realize testing the adsorption/desorption experiment (operate to most needs in the baking of sheet cigarette and moisture regain performance test and test within the scope of 50 DEG C ~ 90 DEG C, higher than 50 DEG C, there is using value) higher than more than 50 DEG C; 2) because saturated moist air is directly produced by water-bath, saturated moist air temperature is a little less than the temperature of adsorption/desorption indoor, and relative humidity is reaching 90%RH higher than being difficult under room temperature condition, causes difficulty to the rapid adjustment of high humility test; 3) temperature of saturated moist air is due to above-mentioned 2) middle reason, there is condensation very easily under conditions of high humidity, impact test effect and measuring accuracy, meanwhile, damage balance.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of device for biological material moisture isothermal adsorption desorptions such as sheet cigarette or pipe tobaccos, this device can carry out the detection of moisture isothermal adsorption and desorption process in sheet cigarette or pipe tobacco at a certain temperature and humidity conditions.By analyzing moisture situation over time in sample, obtaining the result of water percentage under the speed of water adsorption and desorption in different sample and equilibrium state, thus characterizing water adsorption and desorption performance in the biological material such as sheet cigarette or pipe tobacco.
The object of the invention is to be achieved through the following technical solutions:
Divide a pick-up unit for isothermal adsorption/desorption for sheet cigarette or pipe tobacco biomass water, be made up of gas hybrid cell, adsorption/desorption unit, weighing unit, data acquisition and control unit, and gas hybrid cell, adsorption/desorption unit are independently arranged;
Described gas hybrid cell comprises gas cylinder, constant water bath box, be arranged on the mixed air chamber in constant water bath box, a is passed in constant water bath box, b two-way admission line, wherein a road admission line enters mixed air vessel by sinuous coil after entering constant water bath box, water bath with thermostatic control lower box part is directly exposed to after the outlet side connection bubble generator of b road admission line, two-way admission line is connected with gas cylinder respectively by air mass flow detection control apparatus, a saturated moist air draft tube is provided with in mixed air vessel, the air intake opening end of saturated moist air draft tube is exposed to above the water surface of constant water bath box, well heater and temperature sensor is also provided with in constant water bath box,
Described adsorption/desorption unit comprise with adiabatic gland bonnet thermostatic box, be arranged on the adsorption/desorption room in thermostatic box and be placed on thermostatic box and the heating and cooling circulator be connected with thermostatic box by circulation line, in adsorption/desorption room, be provided with Temperature Humidity Sensor, and be connected with soft air draft tube between mixed air vessel in adsorption/desorption room and gas mixing units;
Described weighing unit comprises the LOAD CELLS being arranged in LOAD CELLS protection room, to be arranged on above LOAD CELLS by pallet pole and to be arranged in the weighing tray of adsorption/desorption room and protection gas air inlet pipeline and gas exhaust piping, LOAD CELLS protection is also provided with temperature sensor in room, pallet pole adopts thermal insulation material to make, and the protection air flue be provided with between LOAD CELLS protection room and adsorption/desorption room for installing pallet pole, protection air flue bottom is by protecting gas draft tube to be communicated with gas cylinder and being controlled by air mass flow detection control apparatus, protection upper airways is provided with the gas outlet that can pass into air,
Described data acquisition and control unit comprises temperature acquisition card, humidity collection card, heating controller, flow controller, heating and cooling cycle controller, adsorption/desorption data record collector and industrial computer composition.
In the present invention, in constant water bath box, be also provided with liquid level gauge, liquid injection pipe and tapping valve; Described saturated moist air draft tube is the downward curved pipe of an arc core, the suction of saturated moist air of being more convenient for.
The casing skin of the constant water bath box outer case in described gas hybrid cell and the thermostatic box in adsorption/desorption unit is provided with heat insulation layer.
The adsorption/desorption room be arranged in thermostatic box is a high-thermal conductive metal inner bag.
Heating and cooling circulatory mediator in adsorption/desorption unit is distilled water, and heating and cooling medium entrance pipeline and export pipeline are arranged on the diagonal position in thermostatic box.
The present invention is described further each component units principle of work below in conjunction with control procedure:
Gas hybrid cell mainly comprises the part composition such as gas cylinder, a road air mass flow detection control apparatus, the snakelike pipeline of a road preheating of air, b road air mass flow detection control apparatus, b road bubble generator, constant water bath box, well heater, mixed air chamber, soft air draft tube, liquid level gauge, liquid injection pipe, discharging tube.Gas cylinder is for generation of the dry anhydrous gas needed for test, and a road and b road two-way gas are for generation of the dry soft air needed for test.Unit main body structure is a water bath with thermostatic control casing, and thermostatic box skin arranges heat insulation layer.Liquid level gauge is for showing the height of the liquid level of water bath, and liquid injection pipe and discharging tube are for annotating and the liquid of discharge water bath cabinet.The basic functional principle of whole unit: two-way gas is the mixed gas obtaining uniform temperature and humidity after certain process, and the gas after mixed enters in the environment of adsorption/desorption as treatment media.Gas mixes process and can be described as: air is divided into two-way and enters in constant water bath box after gas cylinder exports under the effect of flow detection control device, after wherein a road air enters water bath with thermostatic control casing, mixed air chamber is entered by sinuous coil, sinuous coil is immersed in constant water bath box, this road air by coiled pipe time and constant water bath box in water generation heat interchange, enter mixed air room after reaching uniform temperature.After another road air enters constant water bath box, the bubble generator arranged by pipe end enters in the water in water bath with thermostatic control casing, gas then becomes saturated moist air at a certain temperature, enters mixed air chamber by the pipeline of particular design after entering and separating out in the water of uniform temperature; Two-way gas after fully mixed in mixed air vessel is entered in the environment of adsorption/desorption unit by induction pipe.By the flow of regulable control two-way air, mixed air vessel can formation temperature in normal temperature ~ 90 DEG C, the soft air of relative humidity in 5% ~ 95% scope.
Adsorption/desorption unit comprises the parts such as thermostatic box, adsorption/desorption room, adiabatic gland bonnet, Temperature Humidity Sensor, external heating and cooling circulator, heating and cooling medium entrance pipeline and export pipeline and forms.Unit main body structure is a thermostatic box, thermostatic box skin arranges heat insulation layer, thermostatic box inside enters box house by external heating and cooling circulator by heating and cooling medium entrance pipeline, get back in heating and cooling circulator by heating and cooling media outlet pipeline after case Inner eycle, ensure the constant of constant temperature the temperature inside the box with this.Heat cycles medium is distilled water, and heating and cooling medium entrance pipeline and export pipeline are arranged on case inner opposite angle position, to ensure fully circulating of heat cycles medium.Absorption and desorption environment are realized by the high-thermal conductive metal inner bag be arranged in thermostatic box, in inner bag, the control method of temperature is after detecting the temperature in inner bag, control to carry out adjusting and controlling by adjusting external heating and cooling circulator temperature, the control method of inner bag humidity detects the humidity in inner bag, controls two-way flow in gas pre-mixed and system realize by adjustment.Above adsorption/desorption room, being provided with adiabatic gland bonnet, ensureing the measuring accuracy under different temperature and humidity regulation, in order to prevent extraneous temperature on the impact of adsorption/desorption room, sealing and the thermal insulation of adsorption/desorption must be ensured.Temperature Humidity Sensor is positioned at the below of adsorption/desorption, for detecting the warm and humid angle value of adsorption/desorption, and detects the humiture situation of adsorption/desorption room in real time by control module.
Weighing unit comprises the compositions such as LOAD CELLS, weighing tray, pallet pole, LOAD CELLS protection room, c road air flowmeter, temperature sensor, protection air inlet pipeline and outlet pipe.In order to protect LOAD CELLS, LOAD CELLS is positioned at design protection indoor, is connected with pallet by pole, and pallet is for placing test sample.In order to protect LOAD CELLS, preventing the heat of adsorption/desorption room to be delivered in LOAD CELLS by pole and damaging LOAD CELLS, pallet pole adopts thermal insulation material to make.The gas exchanges preventing the gas of energy between adsorption/desorption room and sensor protection room from may exist, devises sensor protection gas circuit.Gas cylinder gas enters air inlet pipeline through c road air flowmeter, air inlet pipeline and the outlet pipe of protection gas is devised respectively in the downside of tray support and upside, outlet pipe or the soft air escape hole of adsorption/desorption room simultaneously, after protection gas enters from the bottom of pole, be subject to protecting the jacking of the gas of room that protection gas is upwards flowed, discharge from outlet pipe together with the soft air of adsorption/desorption room above pole, such design not only can avoid the Hot wet air heating of adsorption/desorption room may enter sensor protection room, and the flowing of protection gas is to support thermolysis, play certain effect of cooling, to avoid due to pallet pole at upper contact to the impact that add thermal tracking weight sensor of Hot wet air heating on support.
Data acquisition and control unit comprises the composition such as temperature acquisition card, humidity collection card, heating controller, flow controller, heating and cooling cycle controller, industrial computer and control software design and adsorption/desorption data logging software (i.e. collector).Temperature acquisition card gathers the temperature of constant water bath box, adsorption/desorption room, LOAD CELLS protection room respectively.Humidity collection card is for gathering the humidity of adsorption/desorption room.Heating controller is for controlling the temperature of constant water bath box.The flow of flow controller control a, b, c road gas respectively, ensures the humidity of adsorption/desorption room and the flow of protection gas.Heating and cooling cycle controller for controlling the temperature of the heating and cooling medium of constant temperature oven, thus controls the temperature of adsorption/desorption room.Industrial computer and control software design control by being connected with each capture card and controller, control the parameters of this device, the normal operation of assurance device.Adsorption/desorption data logging software real time record adsorption/desorption room temperature humidity value and sample quality, and can by the adsorption/desorption performance of the form reflection sample of chart.
Tool of the present invention has the following advantages:
1) wide between working temperature humidity province: the setting range of temperature humidity: temperature is at 5 DEG C ~ 90 DEG C, and relative humidity is 5% ~ 95%.
2) design special weighing unit, LOAD CELLS is separated with weighing tray, and add LOAD CELLS protection gas circuit, ensure that can not affect weighing sensor stability at high temperature test, protection LOAD CELLS.
3) novel gas mixing units is devised, adsorption/desorption room is separated with mixing chamber, subregion temperature control can be realized, the temperature of mixing chamber is made to be greater than 3 DEG C ~ 5 DEG C, adsorption/desorption room, the humidity at a higher temperature of mixing chamber can be ensured, such mixing chamber can not produce condensation, ensure that the precision of experiment.Achieve the adsorption/desorption test of high temperature.
4) devise adsorption/desorption logging software, can control the parameter of unit in real time, test parameters setting is convenient, preserves experimental data, and can realize automatically regulating and monitoring in real time.
Accompanying drawing explanation
Fig. 1 is that biomass water divides isothermal adsorption/desorption structure drawing of device;
1-gas cylinder; 2-c road air-flow control device; 3-b road air flow rate detecting device; 4-a road air-flow control device; 5-liquid level gauge; 6-sinuous coil; 7-foams generating means; 8-saturated moist air induction pipe; 9-mixed air vessel; 10-constant water bath box; 11-liquid injection pipe; 12-soft air induction pipe; The adiabatic gland bonnet of 13-; 14-adsorption/desorption room; 15-Temperature Humidity Sensor; 16-sample tray; 17-gas exhaust piping; 18-thermostatic box; 19-pallet pole; 19.1-protection air flue; 20-LOAD CELLS protection room; 21-LOAD CELLS; 22-heating and cooling media outlet pipe; 23-heating and cooling circulator; 24-heating and cooling medium inlet; 25-protects room temperature sensor; 26-blanket gas draft tube; 27-tapping valve; 28-water bath with thermostatic control room temperature sensor; 29-well heater; 30-data acquisition and control unit; 31-industrial computer;
Fig. 2 is certain sample water adsorption family curve under 50 DEG C and different humidity.
Fig. 3 is certain sample water adsorption family curve under 50 DEG C and program rise wet control.
Embodiment
Below in conjunction with Fig. 1, structure of the present invention and annexation are described:
As shown in Figure 1: a kind of pick-up unit dividing isothermal adsorption/desorption for sheet cigarette or pipe tobacco biomass water, be made up of gas hybrid cell, adsorption/desorption unit, weighing unit, data acquisition and control unit, and gas hybrid cell, adsorption/desorption unit are independently arranged;
Described gas hybrid cell comprises gas cylinder 1, constant water bath box 10, be arranged on the mixed air chamber 9 in constant water bath box, a is passed in constant water bath box 10, b two-way admission line, mixed air vessel 9 is entered by sinuous coil 6 after wherein a road admission line enters constant water bath box, constant water bath box 10 bottom is directly exposed to after the outlet side connection bubble generator 7 of b road admission line, two-way admission line is respectively by air mass flow detection control apparatus (3, 4) be connected with gas cylinder 1, a saturated moist air draft tube 8 is provided with in mixed air vessel 9, described saturated moist air draft tube is the downward curved pipe of an arc core, the wet air intake opening end of draft tube of saturated air is exposed to above the water surface of constant water bath box, well heater 29 and temperature sensor 28 is also provided with in constant water bath box 10, liquid level gauge 5, liquid injection pipe 11 and tapping valve 27.
Described adsorption/desorption unit comprise with adiabatic gland bonnet 13 thermostatic box 18, be arranged on the adsorption/desorption room 14 in thermostatic box and be placed on thermostatic box and the heating and cooling circulator 23 be connected with thermostatic box by circulation line, in adsorption/desorption room 14, be provided with Temperature Humidity Sensor 15, and be connected with soft air draft tube 12 between mixed air vessel 9 in adsorption/desorption room 14 and gas mixing units; Described adsorption/desorption room is a high-thermal conductive metal inner bag.Heating and cooling circulatory mediator is distilled water, and heating and cooling medium entrance pipeline 24 and export pipeline 22 are arranged on the diagonal position in thermostatic box 18.
Described weighing unit comprises the LOAD CELLS 21 being arranged in LOAD CELLS protection room 20, to be arranged on above LOAD CELLS 21 by pallet pole 19 and to be arranged in the weighing tray 16 of adsorption/desorption room 14 and protection gas air inlet pipeline 26 and gas exhaust piping 17, LOAD CELLS protection is also provided with temperature sensor 25 in room 20, pallet pole 19 adopts thermal insulation material to make, and the protection air flue 19.1 installed for pallet pole 19 is provided with between LOAD CELLS protection room 20 and adsorption/desorption room 14, protection air flue bottom is passed through protection gas draft tube 26 and is communicated with gas cylinder 1 and is controlled by c road air mass flow detection control apparatus 2, protection upper airways is provided with the gas exhaust piping 17 that can pass into air,
Described data acquisition and control unit 30 comprises temperature acquisition card, humidity collection card, heating controller, flow controller, heating and cooling cycle controller, adsorption/desorption data record collector and industrial computer 31 and forms.
Below in conjunction with Fig. 1 and embodiment, the present invention is made a more detailed description:
As shown in Figure 1: the present invention is the pick-up unit dividing isothermal adsorption/desorption for biomass water, constant water bath box 10, thermostatic box 18, LOAD CELLS protection room 20 and data acquisition and control module 30 etc. is comprised.A, b two-way is had respectively through the dry air from gas cylinder 1 of a road air-flow control device 4, b road volume control device 3 on the right side of constant water bath box 10, mixed air vessel 9 is entered by sinuous coil 6 after a road admission line enters constant water bath box 10, be connected with the foaming generating means 7 being immersed in distilled water in constant water bath box 10 after b road admission line enters constant water bath box 10, the gas after foaming enters mixed air vessel 9 from the saturated draft tube 8 be connected with mixed air vessel 9; Constant water bath box 10 is provided with liquid injection pipe 11, tapping valve 27, liquid level gauge 5; Be full of by the distilled water of the real-time control temperature of heating and cooling circulator 23 in thermostatic box 18, adiabatic gland bonnet 13, in the space that thermostatic box 18 and adiabatic gland bonnet 13 surround, be provided with adsorption/desorption room 14, in this adsorption/desorption room 14, be provided with Temperature Humidity Sensor 15, sample tray 16; Airtight LOAD CELLS protection room 20 is provided with below thermostatic box 18, be provided with protection air chamber temperature sensor 25, LOAD CELLS 21 in LOAD CELLS protection room 20, LOAD CELLS 21 is connected with sample tray 16 by fixed installation pallet pole 19 thereon; Adsorption/desorption room 14 and LOAD CELLS are protected between room and are provided with a road controls flow dried compressed air through c road air-flow control device, and the other end of c road flow controller is connected with gas cylinder; Data Acquisition and Conversion System (DACS) comprises industrial computer 31, data acquisition and control unit 30 and signals collecting transfer line, signal transmission line respectively with c road air-flow control device 2, b road air-flow control device 3, a road air-flow control device 4, Temperature Humidity Sensor 15, LOAD CELLS 21, protect room temperature sensor 25, water bath with thermostatic control room temperature sensor 28, well heater 29, heating and cooling circulator 23 etc. to be connected.
Circulatory mediator in thermostatic box 18 is distilled water, and the inlet ductwork 24 of circulatory mediator and export pipeline 22 are separately positioned on the diagonal position of thermostatic box, to ensure fully circulating of heat cycles medium.
Be described in detail in conjunction with the course of work of two embodiments to apparatus of the present invention:
Case study on implementation one
Open industrial computer 31 and heating and cooling circulator 23 and adsorption/desorption device master switch, open adsorption/desorption testing software, check that whether Data Acquisition and Conversion System (DACS) communication is normal.Device can with industrial computer 31 normal communication after, arrange the experiment parameters such as the temperature of each experimental phase, humidity, stabilization time, shielding gas flow amount, mixed gas flow, sampling period, specific experiment parameter is as shown in table 1.Start test procedure, the experiment parameter that basis sets by program, the temperature of each parts of apparatus for automatic control and air mass flow are to obtain required experimental situation.Meanwhile, in experimentation, the real time data of each experiment parameter also will show and preserve on industrial computer.Experiment can transfer to next step from a step under the control of a test program automatically.Tobacco sample can adsorb or desorb water under the humiture environment of setting, and weight can constantly change.Experimental result as shown in Figure 2.
Case study on implementation two
Open industrial computer 31 and heating and cooling circulator 23 and adsorption/desorption device master switch, open adsorption/desorption testing software, check that whether Data Acquisition and Conversion System (DACS) communication is normal.Device can with industrial computer 31 normal communication after, the experiment parameters such as the temperature of each experimental phase, humidity, stabilization time, shielding gas flow amount, mixed gas flow, sampling period are set.Specific experiment parameter is as shown in table 2.Usually in the first stage of testing and final stage at every turn, humidity value is set to 0, is arranged on more than 30 minutes stabilization time, for the residual moisture in emptying adsorption/desorption room 14 and pipeline.Open adiabatic heat-insulation lid 13, load weighted sample is put into the sample tray 16 of adsorption/desorption room 14, then by adiabatic heat-insulation lid 13 good seal.Start test procedure, the experiment parameter that basis sets by program, the temperature of each parts of apparatus for automatic control and air mass flow are to obtain required experimental situation.Meanwhile, in experimentation, the real time data of each experiment parameter also will show and preserve on industrial computer.Experiment can transfer to next step from a step under the control of a test program automatically.Tobacco sample can adsorb or desorb water under the humiture environment of setting, and weight can constantly change.Experimental result as shown in Figure 3.
Claims (6)
1. one kind is divided the pick-up unit of isothermal adsorption/desorption for sheet cigarette or pipe tobacco biomass water, it is characterized in that: be made up of gas hybrid cell, adsorption/desorption unit, weighing unit, data acquisition and control unit, and gas hybrid cell, adsorption/desorption unit independently arrange and are positioned at two casings arranged side by side;
Described gas hybrid cell comprises gas cylinder, constant water bath box, be arranged on the mixed air chamber in constant water bath box, a is passed in constant water bath box, b two-way admission line, wherein a road admission line enters mixed air vessel by sinuous coil after entering constant water bath box, water bath with thermostatic control lower box part is directly exposed to after the outlet side connection bubble generator of b road admission line, two-way admission line is connected with gas cylinder respectively by air mass flow detection control apparatus, a saturated moist air draft tube is provided with in mixed air vessel, the air intake opening end of saturated moist air draft tube is exposed to above the water surface of constant water bath box, well heater and temperature sensor is also provided with in constant water bath box,
Described adsorption/desorption unit comprise with adiabatic gland bonnet thermostatic box, be arranged on the adsorption/desorption room in thermostatic box and be placed on thermostatic box and the heating and cooling circulator be connected with thermostatic box by circulation line, in adsorption/desorption room, be provided with Temperature Humidity Sensor, and be connected with soft air draft tube between mixed air vessel in adsorption/desorption room and gas mixing units;
Described weighing unit comprises the LOAD CELLS being arranged in LOAD CELLS protection room, to be arranged on above LOAD CELLS by pallet pole and to be arranged in the weighing tray of adsorption/desorption room and protection gas air inlet pipeline and gas exhaust piping, LOAD CELLS protection is also provided with temperature sensor in room, pallet pole adopts thermal insulation material to make, and the protection air flue be provided with between LOAD CELLS protection room and adsorption/desorption room for installing pallet pole, protection air flue bottom is by protecting gas draft tube to be communicated with gas cylinder and being controlled by air mass flow detection control apparatus, protection upper airways is provided with the gas outlet that can pass into air,
Described data acquisition and control unit comprises temperature acquisition card, humidity collection card, heating controller, flow controller, heating and cooling cycle controller, adsorption/desorption data record collector and industrial computer composition.
2. the pick-up unit dividing isothermal adsorption/desorption for sheet cigarette or pipe tobacco biomass water according to claim 1, is characterized in that: in constant water bath box, be also provided with liquid level gauge, liquid injection pipe and tapping valve.
3. the pick-up unit dividing isothermal adsorption/desorption for sheet cigarette or pipe tobacco biomass water according to claim 1, is characterized in that: the casing skin of the constant water bath box outer case in described gas hybrid cell and the thermostatic box in adsorption/desorption unit is provided with heat insulation layer.
4. the pick-up unit dividing isothermal adsorption/desorption for sheet cigarette or pipe tobacco biomass water according to claim 1, is characterized in that: the adsorption/desorption room be arranged in thermostatic box is a high-thermal conductive metal inner bag.
5. the pick-up unit dividing isothermal adsorption/desorption for sheet cigarette or pipe tobacco biomass water according to claim 1, it is characterized in that: the heating and cooling circulatory mediator in adsorption/desorption unit is distilled water, and heating and cooling medium entrance pipeline and export pipeline are arranged on the diagonal position in thermostatic box.
6. the pick-up unit dividing isothermal adsorption/desorption for sheet cigarette or pipe tobacco biomass water according to claim 1, is characterized in that: described saturated moist air draft tube is the downward curved pipe of an arc core.
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| CN107132174A (en) * | 2017-06-27 | 2017-09-05 | 中国计量大学 | The wet detection device of physical property of porous material and its measuring method |
| CN107543770A (en) * | 2016-06-24 | 2018-01-05 | 梅特勒-托利多仪器（上海）有限公司 | Moisture teller and its application method |
| CN108918335A (en) * | 2018-08-24 | 2018-11-30 | 烟台大学 | The device and method of rapid survey silk bulk object moisture content |
| CN109342581A (en) * | 2018-09-26 | 2019-02-15 | 上海交通大学 | A kind of adsorption system comprehensive performance analysing device and the analysis method based on the device |
| CN110376091A (en) * | 2019-08-26 | 2019-10-25 | 福建中烟工业有限责任公司 | Measure the method and device of carbon dioxide adsorption in expanded cut tobacco |
| CN110793604A (en) * | 2019-12-13 | 2020-02-14 | 中国科学院合肥物质科学研究院 | Automatic weighing device for detecting tobacco moisture adsorption and desorption performance |
| CN112540022A (en) * | 2020-12-02 | 2021-03-23 | 中触媒新材料股份有限公司 | High-throughput evaluation device for catalyst and adsorbent and application method |
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