CN103217368A - Method and device for testing solid phase settling speed of straw photosynthetic hydrogen production system - Google Patents
Method and device for testing solid phase settling speed of straw photosynthetic hydrogen production system Download PDFInfo
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- CN103217368A CN103217368A CN2013101448881A CN201310144888A CN103217368A CN 103217368 A CN103217368 A CN 103217368A CN 2013101448881 A CN2013101448881 A CN 2013101448881A CN 201310144888 A CN201310144888 A CN 201310144888A CN 103217368 A CN103217368 A CN 103217368A
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Abstract
The invention discloses a method and device for testing solid phase settling speed of a straw photosynthetic hydrogen production system. The device comprises a monochromatic light illuminating device and a colorimetric device, wherein monochromatic light reaches a colorimetric tube of the colorimetric device, a detection device is arranged behind a horizontal straight line of the colorimetric device, and the detection device is connected with a display device. According to the method, a monochromator is used to enable the monochromatic light which is separated from a light source to reach the colorimetric tube; an absorbance value of a standard sample is compared with an absorbance value of a straw photosynthetic hydrogen production mixture; and the setting speed of solid phase straw powder is measured through the detection device and the display device, the setting speed provides an important parameter value for mass transfer, heat transfer, speed field and flow field distribution of the later-stage straw photosynthetic hydrogen production multi-phase fluid system, the hydrogen production is further improved, the structure is simple, the operation is convenient, and the data is reliable.
Description
Technical field
The present invention relates to a kind of method of testing and device of stalk photosynthetic hydrogen production system solid phase settling velocity, relate in particular in a kind of powdery stalk photosynthetic hydrogen production polyphasic flow system, the method for testing of solid phase settling velocity and device belong to field of renewable energy technology.
Background technology
Along with the continuous progress of human society and improving constantly of industrialization degree, human increasing to the demand of the energy, also more and more stronger to the dependence of the energy.Traditional fossil energy reserves are limited, and can bring the ecological deterioration problem that is on the rise, and countries in the world all substitute original fossil energy in the regenerative resource of making great efforts to seek a kind of new cleaning.In the face of current world energy sources situation, seek cheap raw material, produce the high density energy---Hydrogen Energy is a main direction of world energy sources development.Be rich in a large amount of lignocelluloses in the stalk, can be converted into renewable carbohydrate resource by processing such as biofermentations, biomass straw with cheapness is a development of raw materials cellulose hydrogen, for the deficiency of replenishing China's energy, ensure the national energy strategic security, minimizing is to the dependence of fossil energy, and the aspects such as regeneration that reduce environmental pollution and biomass resource have great importance.
With the stalk biomass is that raw material carries out photosynthetic hydrogen production, and its feed liquid is the heterogeneous system that is made of the photosynthetic bacteria of the nutrient culture media of liquid phase and solid phase, biomass straw (non-soluble composition and cell) and reaction product hydrogen.In this heterogeneous system, solid phase biological matter stalk is under the physics fragmentation, its size, pattern, change has taken place in uniformity coefficient and molecular structure, therefore, solid particle degree size, settling velocity, physical parameters such as severe can change the original flow characteristics of liquid flow, make the system dispersiveness, solubleness, viscosity, the corresponding variation takes place in system turbidity and chemical activity etc., the exposure level of the daylighting face of influence deposition degree and photosynthetic bacteria and stalk biomass, cause the quality between each phase of photosynthetic hydrogen production system, the transmission of momentum and heat and characteristics single-phase and that the two-phase system generation is far different, thereby influence the cycle and the output of microbial reaction, finally influence the hydrogen production potential of photosynthetic bacteria.
Summary of the invention
The method of testing and the device that the purpose of this invention is to provide a kind of powder of straw photosynthetic hydrogen production system solid phase settling velocity, mass transfer, heat transfer, velocity field, the Flow Field Distribution of stalk photosynthetic hydrogen production polyphasic flow system provide the important parameters value for the later stage, thereby further improve hydrogen output, simple in structure, easy to operate, data are reliable.
The present invention adopts following technical proposals:
A kind of proving installation of powder of straw photosynthetic hydrogen production system solid phase settling velocity, comprise monochromatic light irradiation unit and colorimetric device, monochromatic light is radiated on the color comparison tube of colorimetric device, and colorimetric device horizontal linear rear is provided with pick-up unit, and pick-up unit is connected with display device.
Described monochromatic light irradiation unit comprises light source, and light source sees through the entrance slit of monochromator, is radiated on the color comparison tube by the exit slit of monochromator.
Described colorimetric device comprises color comparison tube, and color comparison tube one end inserts in the cell, and the other end is fixed by fixed mount.
Described pick-up unit comprises detecting device, and detecting device is connected with amplifier, and amplifier connects display device.
Described display device comprises display, and display connects amplifier by timer.
The high scale line is carved with in described color comparison tube upper end, and scale mark is carved with down in the lower end.
Scale mark all is fixed on same horizontal linear position under described light source, monochromator entrance slit and exit slit, the color comparison tube.
A kind of method of testing of powder of straw photosynthetic hydrogen production system solid phase settling velocity may further comprise the steps:
A at first all is fixed on same horizontal linear position with scale mark under light source, monochromator entrance slit and exit slit, the color comparison tube;
B is positioned over color comparison tube horizontal linear rear with detecting device and amplifier, and amplifier connects display by timer;
C after color comparison tube cleaned up, dries, pours the photosynthetic hydrogen production nutrient solution into, and liquid level aligns with color comparison tube high scale line, as standard sample liquid, again color comparison tube is positioned over cell, and the color comparison tube upper end is fixed by fixed mount;
D opens light source, pick-up unit and display device, measures, writes down the absorbance of the photosynthetic hydrogen production nutrient solution at scale mark place under the color comparison tube, finishes to close light source;
E takes off color comparison tube, cleans up, dries, and pours powder of straw photosynthetic hydrogen production potpourri to be measured into, and liquid level aligns with color comparison tube high scale line, again color comparison tube is placed, is fixed;
F opens light source, measures 0 constantly, the absorbance at powder of straw photosynthetic hydrogen production potpourri to be measured scale mark place under color comparison tube, and timer picks up counting simultaneously;
G, observe the down position of solid phase powder of straw sedimentation face in the color comparison tube then, and meanwhile measure the absorbance of powder of straw photosynthetic hydrogen production potpourri to be measured, the sedimentation face of solid phase powder of straw near color comparison tube under during scale mark, increase test frequency;
H, absorbance when the powder of straw photosynthetic hydrogen production potpourri of testing to be measured, during near the absorbance of photosynthetic hydrogen production nutrient solution, detecting device passes to timer and display with signal, behind the absorbance and time data of display record powder of straw photosynthetic hydrogen production potpourri to be measured at this moment, give detecting device with signal feedback, detecting device and timer quit work after receiving signal;
I, at this moment, test out powder of straw under the condition of free setting, the position of scale mark under from the position of color comparison tube high scale line to color comparison tube, the time t that is experienced, the powder of straw free setting height h scale mark that is color comparison tube high scale line under the color comparison tube is so powder of straw sedimentation average velocity v is v=h/t.
The ratio of photosynthetic hydrogen production nutrient solution is among the described step C: NaCl 0.2g; MgSO
40.18g; KH
2PO
41.5g; CaCl
20.05g; K
2HPO
40.6g; NH
4Cl 0.4g; Sodium acetate 3g; Yeast extract 2g; Trace element 1mL; Growth factor 1mL is dissolved in mentioned component in the distilled water, and regulating the pH value is 7.0, constant volume 1000mL, 115 ℃ of 20min that sterilize down.
Described color comparison tube is a flat-bottom structure, long 40cm-60cm, and diameter 3cm-4cm, following scale mark is apart from pipe end 20cm.
The present invention utilizes monochromator that the monochromatic light that light source separates is radiated on the color comparison tube, absorbance and powder of straw photosynthetic hydrogen production potpourri absorbance to be measured by the standard of comparison sample, again through detection, display device, measure the settling velocity of solid phase powder of straw, settling velocity provides the important parameters value for mass transfer, heat transfer, velocity field, the Flow Field Distribution of later stage stalk photosynthetic hydrogen production polyphasic flow system, thereby further improves hydrogen output, and is simple in structure, easy to operate, data are reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1, the present invention includes the monochromatic light irradiation unit, monochromatic light is radiated on the color comparison tube 3 of colorimetric device, colorimetric device horizontal linear rear is provided with pick-up unit, pick-up unit is connected with display device, the monochromatic light irradiation unit comprises light source 1, light source 1 sees through the entrance slit 10 of monochromator 2, exit slit 11 by monochromator 2 is radiated on the color comparison tube 3, colorimetric device comprises color comparison tube 3, color comparison tube 3 one ends insert in the cell 4, the other end is fixing by fixed mount 5, and pick-up unit comprises detecting device 6, and detecting device 6 is connected with amplifier 7, amplifier 7 connects display device, display device comprises display 9, and display 9 connects amplifier 7 by timer 8, and high scale line 12 is carved with in color comparison tube 3 upper ends, scale mark 13 is carved with down in the lower end, light source 1, monochromator entrance slit 10 and exit slit 11,3 times scale marks 13 of color comparison tube all are fixed on same horizontal linear position.
A kind of method of testing of powder of straw photosynthetic hydrogen production system solid phase settling velocity may further comprise the steps:
A at first all is fixed on same horizontal linear position with light source 1, monochromator 2 entrance slits 10 and exit slit 11,3 times scale marks 13 of color comparison tube;
B is positioned over color comparison tube 3 horizontal linear rears with detecting device 6 and amplifier 7, and amplifier 7 connects display 9 by timer 8;
C after color comparison tube 3 cleaned up, dries, pours the photosynthetic hydrogen production nutrient solution into, and liquid level aligns with color comparison tube high scale line 12, as standard sample liquid, again color comparison tube 3 is positioned over cell 4, and color comparison tube 3 upper ends are fixing by fixed mount 5;
D opens light source 1, pick-up unit and display device, measures, writes down the absorbance of the photosynthetic hydrogen production nutrient solution at 3 times scale mark 13 places of color comparison tube, finishes to close light source 1;
E takes off color comparison tube 3, cleans up, dries, and pours powder of straw photosynthetic hydrogen production potpourri to be measured into, and liquid level aligns with color comparison tube 3 high scale lines 12, again color comparison tube 3 is placed, is fixed;
F opens light source 1, measures 0 constantly, and powder of straw photosynthetic hydrogen production potpourri to be measured is at the absorbance at 3 times scale mark 13 places of color comparison tube, and timer 8 picks up counting simultaneously;
G Yi Bian observe the down position of solid phase powder of straw sedimentation face in the color comparison tube 3 then, Yi Bian measure the absorbance of powder of straw photosynthetic hydrogen production potpourri to be measured, during near 3 times scale marks 13 of color comparison tube, increases test frequency at the sedimentation face of solid phase powder of straw;
H, absorbance when the powder of straw photosynthetic hydrogen production potpourri of testing to be measured, during near the absorbance of photosynthetic hydrogen production nutrient solution, detecting device 6 passes to timer 8 and display 9 with signal, behind the absorbance and time data of display 9 records powder of straw photosynthetic hydrogen production potpourri to be measured at this moment, give detecting device 6 with signal feedback, quit work after detecting device 6 and timer 8 are received signal;
I, at this moment, test out powder of straw under the condition of free setting, from the position of color comparison tube 3 high scale lines 12 to the position of 3 times scale marks 13 of color comparison tube, the time t that is experienced, powder of straw free setting height h is that color comparison tube 3 high scale lines 12 are to 3 times scale marks 13 of color comparison tube, so powder of straw sedimentation average velocity v is v=h/t.
As shown in Figure 1, in the present embodiment, light source 1 adopts tungsten lamp, light source 1 is isolated monochromatic visible light by monochromator 2, and monochromatic visible light is radiated at 3 times scale mark 13 positions of color comparison tube, for the first time, pour the photosynthetic hydrogen production nutrient solution in the color comparison tube 3 into, liquid level aligns with color comparison tube high scale line, and as standard sample liquid, detecting device 8 is positioned over apart from color comparison tube 3,5cm-10cm place, open light source 1 and detection, display device, the absorbance of mensuration, record standard sample liquid is closed light source 1 after the end; Color comparison tube 3 is taken off, clean up, dry, pour powder of straw photosynthetic hydrogen production potpourri to be measured into, liquid level aligns with color comparison tube 3 high scale lines 12, again color comparison tube 3 is placed, is fixed, and following steps are carried out according to F, G, H, I, do not repeat them here.
In this explanation, in the present embodiment:
1. biomass straw powder particles degree size: 46nm～10 μ m.
2. hydrogen production with photosynthetic bacteria nutrient solution: NaCl 0.2g; MgSO
40.18g; KH
2PO
41.5g; CaCl
20.05g; K
2HPO
40.6g; NH
4Cl 0.4g; Sodium acetate 3g; Yeast extract 2g; Trace element 1mL; Growth factor 1mL is dissolved in mentioned component in the distilled water, and regulating the pH value is 7.0, constant volume 1000mL, 115 ℃ of 20min that sterilize down.
3. solid-to-liquid ratio: the mass concentration that the biomass straw powder is pressed 15g/L～75g/L adds the photosynthetic hydrogen production nutrient solution.
4. color comparison tube: band scale, flat, long 40cm～60cm, diameter 3cm～4cm, wherein the high scale line clear, distinct with following scale mark, easily distinguish, following scale mark apart from the color comparison tube pipe at the bottom of 20cm.
5. sample cell: be shaped as cylindrically, diameter is consistent with the color comparison tube diameter of corresponding use.
6. absorbance: wavelength is the penetrability at scale mark place under the 680 nm place color comparison tubes.
7. when device quit work, the absorbance error of the absorbance at scale mark place and photosynthetic hydrogen production nutrient solution was not more than 8% under the color comparison tube.
The present invention utilizes monochromator 2 that the monochromatic visible light that light source 1 separates is radiated on the color comparison tube 3, absorbance and powder of straw photosynthetic hydrogen production potpourri absorbance to be measured by the standard of comparison sample, through detection, display device, measure the settling velocity of solid phase powder of straw, simple in structure, easy to operate, data are reliable, improve effective ways and device for improving stalk photosynthetic hydrogen production amount.
Claims (10)
1. the proving installation of a powder of straw photosynthetic hydrogen production system solid phase settling velocity, it is characterized in that: comprise monochromatic light irradiation unit and colorimetric device, monochromatic light is radiated on the color comparison tube of colorimetric device, and colorimetric device horizontal linear rear is provided with pick-up unit, and pick-up unit is connected with display device.
2. the proving installation of powder of straw photosynthetic hydrogen production system solid phase settling velocity according to claim 1, it is characterized in that: described monochromatic light irradiation unit comprises light source, light source sees through the entrance slit of monochromator, is radiated on the color comparison tube by the exit slit of monochromator.
3. the proving installation of powder of straw photosynthetic hydrogen production system solid phase settling velocity according to claim 2, it is characterized in that: described colorimetric device comprises color comparison tube, and color comparison tube one end inserts in the cell, and the other end is fixed by fixed mount.
4. the proving installation of powder of straw photosynthetic hydrogen production system solid phase settling velocity according to claim 3, it is characterized in that: described pick-up unit comprises detecting device, and detecting device is connected with amplifier, amplifier connects display device.
5. the proving installation of powder of straw photosynthetic hydrogen production system solid phase settling velocity according to claim 4, it is characterized in that: described display device comprises display, and display connects amplifier by timer.
6. the proving installation of powder of straw photosynthetic hydrogen production system solid phase settling velocity according to claim 5 is characterized in that: the high scale line is carved with in described color comparison tube upper end, and scale mark is carved with down in the lower end.
7. the proving installation of powder of straw photosynthetic hydrogen production system solid phase settling velocity according to claim 6, it is characterized in that: scale mark all is fixed on same horizontal linear position under described light source, monochromator entrance slit and exit slit, the color comparison tube.
8. the method for testing of a powder of straw photosynthetic hydrogen production system solid phase settling velocity is characterized in that: may further comprise the steps:
A at first all is fixed on same horizontal linear position with scale mark under light source, monochromator entrance slit and exit slit, the color comparison tube;
B is positioned over color comparison tube horizontal linear rear with detecting device and amplifier, and amplifier connects display by timer;
C after color comparison tube cleaned up, dries, pours the photosynthetic hydrogen production nutrient solution into, and liquid level aligns with color comparison tube high scale line, as standard sample liquid, again color comparison tube is positioned over cell, and the color comparison tube upper end is fixed by fixed mount;
D opens light source, pick-up unit and display device, measures, writes down the absorbance of the photosynthetic hydrogen production nutrient solution at scale mark place under the color comparison tube, finishes to close light source;
E takes off color comparison tube, cleans up, dries, and pours powder of straw photosynthetic hydrogen production potpourri to be measured into, and liquid level aligns with color comparison tube high scale line, again color comparison tube is placed, is fixed;
F opens light source, measures 0 constantly, the absorbance at powder of straw photosynthetic hydrogen production potpourri to be measured scale mark place under color comparison tube, and timer picks up counting simultaneously;
G, observe the down position of solid phase powder of straw sedimentation face in the color comparison tube then, and meanwhile measure the absorbance of powder of straw photosynthetic hydrogen production potpourri to be measured, the sedimentation face of solid phase powder of straw near color comparison tube under during scale mark, increase test frequency;
H, absorbance when the powder of straw photosynthetic hydrogen production potpourri of testing to be measured, during near the absorbance of photosynthetic hydrogen production nutrient solution, detecting device passes to timer and display with signal, behind the absorbance and time data of display record powder of straw photosynthetic hydrogen production potpourri to be measured at this moment, give detecting device with signal feedback, detecting device and timer quit work after receiving signal;
I, at this moment, test out powder of straw under the condition of free setting, the position of scale mark under from the position of color comparison tube high scale line to color comparison tube, the time t that is experienced, the powder of straw free setting height h scale mark that is color comparison tube high scale line under the color comparison tube is so powder of straw sedimentation average velocity v is v=h/t.
9. the method for testing of powder of straw photosynthetic hydrogen production system solid phase settling velocity according to claim 8, it is characterized in that: the ratio of photosynthetic hydrogen production nutrient solution is among the described step C: NaCl 0.2g; MgSO
40.18g; KH
2PO
41.5g; CaCl
20.05g; K
2HPO
40.6g; NH
4Cl 0.4g; Sodium acetate 3g; Yeast extract 2g; Trace element 1mL; Growth factor 1mL is dissolved in mentioned component in the distilled water, and regulating the pH value is 7.0, constant volume 1000mL, 115 ℃ of 20min that sterilize down.
10. according to Claim 8 or the method for testing of 9 described powder of straw photosynthetic hydrogen production system solid phase settling velocity, it is characterized in that: described color comparison tube is a flat-bottom structure, long 40cm-60cm, and diameter 3cm-4cm, following scale mark is apart from pipe end 20cm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106908112A (en) * | 2017-02-10 | 2017-06-30 | 超威电源有限公司 | A kind of method of barium sulfate sedimentation degree detection |
| CN107421860A (en) * | 2017-08-08 | 2017-12-01 | 浙江大学 | One-dimensional vertical barged-in fill granule density test device and method of testing |
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2013
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| CN102478490A (en) * | 2010-11-22 | 2012-05-30 | 袁连海 | Determination method for floc settling velocity of hydrophobic polymeric flocculant |
Non-Patent Citations (2)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106908112A (en) * | 2017-02-10 | 2017-06-30 | 超威电源有限公司 | A kind of method of barium sulfate sedimentation degree detection |
| CN107421860A (en) * | 2017-08-08 | 2017-12-01 | 浙江大学 | One-dimensional vertical barged-in fill granule density test device and method of testing |
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Application publication date: 20130724 |