CN202956368U - Biogas tester - Google Patents
Biogas tester Download PDFInfo
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- CN202956368U CN202956368U CN 201220577717 CN201220577717U CN202956368U CN 202956368 U CN202956368 U CN 202956368U CN 201220577717 CN201220577717 CN 201220577717 CN 201220577717 U CN201220577717 U CN 201220577717U CN 202956368 U CN202956368 U CN 202956368U
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- biogas
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Abstract
The utility model discloses a biogas tester. The biogas tester comprises a tester body, a potential of hydrogen (pH) sensor and a charging power source, wherein a measurement and control wafer, a gas guide channel, a displayer, a display selector switch and a rechargeable battery pack are installed inside the tester body, a biogas component sensor is installed inside the gas guide channel, the pH sensor, the biogas component sensor, the display selector switch and the rechargeable battery pack are respectively connected with the measurement and control wafer, and the displayer is connected with the display selector switch. According to the biogas tester, the volume percentage composition of methane (CH4) inside biogas and the pH value of biogas slurry are respectively obtained through the biogas component sensor and the pH sensor, obtained information is transmitted to the measurement and control wafer to be processed, calculated, output and displayed by the displayer, and data display is switched through the display selector switch. The biogas tester simultaneously detects the concentration of the CH4 in the biogas and the pH value of the biogas, and detection is convenient and accurate.
Description
Technical field
The utility model relates to the biogas detection field, relates in particular to a kind of biogas tester that can simultaneously detect biogas concentration and natural pond liquid pH value.
Background technology
Biogas is the potpourri of one kind of multiple gases, generally contains methane, carbon dioxide and a small amount of nitrogen, hydrogen and sulfuretted hydrogen etc.The principal ingredient methane of biogas is a kind of desirable gaseous fuel, and its colorless and odorless and is incendivity after appropriate air mixes.With other combustion gas, compare, its capability of antidetonance is better, is a kind of good clean fuel, and therefore, biogas is widely used in cooking, dries the daily lifes such as agricultural byproducts, heating and illumination.
In order to take full advantage of this clean fuel of biogas, country has set up the biogas service network, for the methane-generating pit of peasant household detects the concentration of methane in sewage gas, at present, mostly uses in the world the infrared absorption measurement method to measure CH
4Concentration, but the method is very expensive, is difficult to promote the use of in rural area.In China, CH is measured with infrared gas sensor in some areas
4Concentration, but this infrared gas sensor cost is higher.
In addition, natural pond liquid pH value, be to affect CH in biogas
4The key factor of content, generally should control natural pond liquid pH between 6.8-7.6.What at present, rural area mainly adopted is that the pH test paper detects natural pond liquid pH value.The method needs manual observation, disturbed by natural pond liquid color, and measuring accuracy is lower.
Detect with pH the two class parameters that obtain and there is apparent causal connection because the biogas composition detects, therefore be necessary both integratedly as an external member, measure CH in biogas simultaneously
4Concentration and natural pond liquid pH value.
In addition, the pick-up unit used at present, need plug-in to use mostly, uses inconvenience.
The utility model content
The purpose of this utility model is to provide a kind ofly can measure CH simultaneously
4Concentration and natural pond liquid pH value, detection be chargeable biogas tester accurately.
According to an aspect of the present utility model, a kind of biogas tester is provided, this comprises tester body, pH sensor and charge power supply, wherein, be provided with observing and controlling wafer, air guide channel, display, demonstration change-over switch in the tester body, reach rechargeable battery pack, be provided with biogas composition sensor in air guide channel, pH sensor, biogas composition sensor, demonstration change-over switch and uniformly rechargeable battery set are connected to the observing and controlling wafer, display is connected in the demonstration change-over switch, and the biogas component sensor is thermal sensor.Thus, biogas tester of the present utility model obtains respectively CH in biogas by biogas component sensor, pH sensor
4Volumn concentration and the pH value of natural pond liquid, and the communication obtained is processed, is calculated, exported to the observing and controlling wafer, by display, shown, and by showing that the change-over switch switching shows that data show, simultaneously, the tester of looking for of the present utility model, by adopting rechargeable battery pack, without the plug-in operation, whenever and wherever possible biogas is detected, operating aspect, and make practical dry cell batteries save cost, in addition, the infrared sensor generally used is at present compared, reduced use cost, and error is in national allowed band.
In some embodiments, the tester body is provided with from rising in value switch, and the switch that certainly rises in value is connected to the observing and controlling wafer and shows change-over switch.Thus, under normal circumstances, CH in biogas
4Concentration, at 40%-50%, is abnormal condition lower than this scope, the CH arrived when test
4Volumn concentration during lower than 20%-30%, press from rising in value switch, now tester increases by 20% automatically, the numerical value that now display shows is CH in tested biogas
4The actual volume percentage composition
In some embodiments, the tester body is provided with the pH sensor interface, and the pH sensor is connected with the observing and controlling wafer by the pH sensor interface.Thus, in the situation that, without detecting, the pH sensor is separated with the tester body, be convenient for carrying, prevent from colliding to the pH sensor and damage.
In some embodiments, air guide channel is located at a side of tester body, and an end of air guide channel is air intake opening, and the other end is gas outlet, and gas outlet is provided with a slip lid, and slip lid is provided with air hole.Thus, during detection, from air intake opening, insert biogas pipeline, open slip lid, import biogas, fully discharge the air in air guide channel, then close slip lid, just can measure CH in biogas
4Concentration.Be provided with slip lid and slip lid is provided with air hole, slowed down the speed that biogas is discharged, extended the residence time of biogas in air guide channel, it is more accurate to make to detect.
In some embodiments, the tester body also is provided with power switch, power on light, start key, under-voltage display lamp and calibration change-over switch in addition, and power switch, power on light, start key, under-voltage display lamp and calibration change-over switch all are connected with the observing and controlling wafer.Thus, power switch is controlled the startup of biogas tester and is closed, power on light shows that whether the biogas tester is in running order, the convenient instrument that starts during in holding state at the biogas tester of start key, under-voltage display lamp is notified the operator during in under-voltage condition in time at instrument, remind the operator to charge in time, in order to avoid dally over one's work, the switching of the functional module when calibration change-over switch returns to zero for calibrating, power switch, power on light, start key, under-voltage display lamp and calibration change-over switch are controlled its work by the observing and controlling wafer.
In some embodiments, tester body side is provided with pH calibration driver plate, concentration calibration driver plate and charge power supply interface, and pH calibration driver plate, concentration calibration driver plate and charge power supply interface all are connected in described observing and controlling wafer.Thus, calibrate by pH the calibration zeroing that driver plate is realized pH testing module, calibrate by concentration the calibration zeroing that driver plate is realized concentration testing module, connect charge power supply by the charge power supply interface, to the rechargeable battery pack charging, pH calibration driver plate, concentration calibration driver plate and charge power supply interface are all controlled its work by the observing and controlling wafer.
In some embodiments, the pH sensor is glass electrode.This pH transducer sensitivity is high, thus, makes measurement more accurate, reduces error.
In some embodiments, TT&C system is an Embedded Single Chip Microcomputer (SCM) system.Thus, the data of controlling the biogas tester are processed, calculate, are exported and show, realize the normal cooperating of each parts.
The accompanying drawing explanation
The structural representation that Fig. 1 is biogas tester in the utility model one embodiment;
The vertical view that Fig. 2 is biogas tester shown in Fig. 1;
The inner structure schematic diagram that Fig. 3 is biogas tester shown in Fig. 1;
The structural framing figure that Fig. 4 is biogas tester in the utility model one embodiment.
Embodiment
Below in conjunction with the accompanying drawing explanation, the utility model is described in more detail.
Fig. 1 to Fig. 4 has schematically shown the biogas tester according to a kind of embodiment of the present utility model.
As depicted in figs. 1 and 2, in an embodiment of the present utility model, the biogas tester comprises tester body 10, pH sensor 20 and charge power supply 40.Wherein, pH sensor 20 is glass electrode.Tester body 10 is a rectangular parallelepiped, and tester body 10 end faces are provided with a pH sensor interface 1020, and pH sensor 20 is connected with tester body 10 by this pH sensor interface 1020.Tester body 10 a wherein side is provided with a charge power supply interface 1040, and charge power supply 40 is connected with tester body 10 by this charge power supply interface 1040.
As shown in Figure 1, the inner side vertical direction of tester body 10 is provided with air guide channel 102, and the upper port of air guide channel is air intake opening 1021, and the lower port of air guide channel is for going out mouth 1022.Wherein, gas outlet 1022 is provided with a slip lid 1023, and these slip lid 1023 edges are provided with an air hole 1024.In addition, as shown in Figure 2, air intake opening 1021 is a bell, and the taper air intake opening is convenient to be connected with biogas pipeline, prevents the biogas leakage.During detection, from air intake opening 1021, insert biogas pipeline, open slip lid 1023, import biogas, fully discharge the air in air guide channel 102, then close slip lid 1023, just can measure CH in biogas
4Concentration.Be provided with slip lid 1023 and slip lid 1023 is provided with air hole 1024, slowed down the speed that biogas is discharged, extended the residence time of biogas air guide channel 102 in, make detection more accurate.
As shown in Figure 1, the positive top of tester body 10 is provided with display 103, during test, directly from display 103, reads test number.Display 103 belows are provided with power switch 107, power on light 108, start key 109, under-voltage display lamp 110 and calibration change-over switch 111 successively.Tester body 10 is provided with charge power supply interface 1,040 one sides, is respectively equipped with pH calibration driver plate 112 and concentration calibration driver plate 113.Tester body 10 tops, show change-over switch 104 and from rising in value switch 105 with being provided with in pH sensor interface 1020 adjacents.Wherein, power switch 107 is controlled the startup of biogas tester and closes.Power on light 108 shows that whether the biogas tester is in running order.The convenient instrument that starts during in holding state at the biogas tester of start key 109.Under-voltage display lamp 110 is notified the operator during in under-voltage condition in time at instrument, remind the operator to charge in time, in order to avoid dally over one's work.Calibration change-over switch 111 comprises zero degree shelves 1111 and 50% grade 1112, the switching of the functional module when calibrating zeroing.PH calibration driver plate 112 is for the zeroing of pH test function module.Concentration calibration driver plate 113 is for the zeroing of concentration determination functional module.Show that change-over switch 104 comprises pH shelves and CH
4Shelves, the switching of functional module when testing.The CH tested out from increment switch 105
4Automatic increment when concentration is starkly lower than normal concentration.
The inner structure schematic diagram that Fig. 3 is the biogas tester, as shown in Figure 3, tester body 10 inside are provided with rechargeable battery pack 106, observing and controlling wafer 101, display 103 and air guide channel 102.Tester body 10 comprises upper shell 1001 and lower house 1002.Display 103 is located in upper shell 1001.In addition, observing and controlling wafer 101 comprises the first observing and controlling wafer 1011 and the second observing and controlling wafer 1012, and observing and controlling wafer 101 is Embedded Single Chip Microcomputer (SCM) system.As shown in the figure, the first observing and controlling wafer 1011 is located in upper shell 1001, wherein, power switch 107, power on light 108, start key 109, under-voltage display lamp 110, calibration change-over switch 111, pH calibration driver plate 112, concentration calibration driver plate 113 and charge power supply interface 1040 are connected on the first observing and controlling wafer 1011, by the first observing and controlling wafer 1011, control its work.
As shown in Figure 3 and Figure 4, lower house 1,002 one sides are provided with air guide channel 102, and air guide channel 102 is by 1025 sealings of passage septation cover, and passage septation cover 1025 is provided with wire guide 1026.Be provided with biogas component sensor 30 in air guide channel 102, wherein, biogas component sensor 30 is thermal sensor.The wire guide 1026 that biogas component sensor 30 passes on passage septation cover 1025 by wire is connected with the first observing and controlling wafer 1011, and the signal that biogas component sensor 30 will be tested is transferred to the first observing and controlling wafer 1011 and processes, calculates and output.
As shown in Figure 3 and Figure 4, lower house 1002 inside also are provided with the second observing and controlling wafer 1012 and rechargeable battery set 106, and lower house 1002 tops are respectively equipped with pH sensor interface 1020, show change-over switch 104 and the switch 105 that certainly rises in value.Wherein, pH sensor interface 1020 is connected with the second observing and controlling wafer 1012 by wire, the second observing and controlling wafer 1012 is connected with the first observing and controlling wafer 1011 by wire, the signal that pH sensor interface 1020 will be tested is transferred to the second observing and controlling wafer 1012 and processes, then is transferred to the first observing and controlling wafer 1011 processing, is calculated and output by the second observing and controlling wafer 1012.Show change-over switch 104 by wire respectively with the second observing and controlling wafer 1012, the first observing and controlling wafer 1011 is connected and display 103 connections, show that change-over switch 104 completes by the first observing and controlling wafer 1011 and the second observing and controlling wafer 1012 that pH value is tested and biogas concentration between the switching of operational module, and will export numerical value and be transferred to display 103 and show.Be connected with the first observing and controlling wafer 1011 and demonstration change-over switch 104 respectively by wire from increment switch 105, automatically increase the purpose of numerical value by finishing dealing with of the first observing and controlling wafer 1011.Rechargeable battery pack 106 is connected with the first observing and controlling wafer 1011 by wire, the first observing and controlling wafer 1011 can monitor the electric weight of rechargeable battery pack 106, whether feed back to user's rechargeable battery pack 106 in under-voltage condition by under-voltage display lamp 110, in addition, process by the first observing and controlling wafer 1011, complete from the charging work of 1040 pairs of rechargeable battery pack 106 of charge power supply interface.
Before operating personnel carry out testing, first turn on the power switch 107, the biogas tester is carried out to preheating, after preheating 5min, to calibrate change-over switch 111 and be allocated to zero degree shelves 1111, regulate pH calibration driver plate 112 to display 103 and show that numerical value is 00.0, to calibrate change-over switch 111 and be allocated to 50% grade 1112, regulate concentration calibration driver plate 113 to display 103 and show that numerical value is 50.0, to calibrate again change-over switch 111 and be allocated to zero degree shelves 1111, regulate pH calibration driver plate 112 to display 103 and show that numerical value is 00.0, continuation will be calibrated change-over switch 111 and will be allocated to 50% grade 1112, regulate concentration calibration driver plate 113 to display 103 and show that numerical value is 50.0, repeat aforesaid operations, until when calibration change-over switch 111 while being allocated to zero degree shelves 1111 display 103 show that numerical value are 00.0 constant, when calibration change-over switch 111 while being allocated to 50% grade 1112 display 103 show that numerical value are 50.0 constant, mean that instrument has completed preheating, can carry out test job.
During test, the air intake opening of biogas tester of the present utility model 1021 is connected in biogas pipeline, opens slip lid 1023, close slip lid 1023 after driving the air in air guide channel out of, pH sensor 30 probes are inserted in drains.Biogas component sensor 30, pH sensor 20 in air guide channel 102 obtain respectively the CH in biogas
4Content and the pH value of natural pond liquid, be transferred to the first observing and controlling wafer 1011 and process, calculate and output, show CH by display
4Volumn concentration and pH value.Press and show that change-over switch 104, switching display numerical value show, when showing that change-over switch 104 is shown as natural pond liquid pH value while pressing, when showing that change-over switch 104 is shown as CH while ejecting
4Volumn concentration.Under normal circumstances, CH in biogas
4Concentration, at 40%-50%, is abnormal condition lower than this scope, the CH arrived when test
4Volumn concentration during lower than 20%-30%, press from rising in value switch 105, now tester increases by 20% automatically, the numerical value that now display shows is CH in tested biogas
4The actual volume percentage composition.
Biogas tester of the present utility model can detect CH in biogas simultaneously
4Concentration and natural pond liquid pH value, easy to detect accurate, than using two instrument tests to save cost, simultaneously convenient and swift.In addition, the biogas component sensor of biogas tester of the present utility model adopts thermal sensor to replace original infrared sensor, saved use cost, although infrared sensor is higher than thermal sensor sensitivity, but, within the scope that the error that thermal sensor tests out allows in country, can not affect test result.The CH that biogas tester of the present utility model tests out
4Volumn concentration be accurate to after radix point one, the natural pond liquid pH value tested out is accurate to 2 significant digits, highly sensitive, the numerical value tested out is accurate, error is little.Secondly, the utility model adopts rechargeable battery pack, without the plug-in practicality, can carry out testing whenever and wherever possible, be provided with under-voltage prompting simultaneously, remind the operator to charge at any time, in addition, when tester does not use for a long time, automatic stand-by, but save power under holding state, only need press start key and just can be tested during use, without re-starting the calibration zeroing, convenient and swift.
Claims (8)
1. biogas tester, for detect biogas CH simultaneously
4the testing tool of concentration and biogas pH value, it is characterized in that, comprise tester body (10), pH sensor (20) and charge power supply (40), be provided with observing and controlling wafer (101) in described tester body (10), air guide channel (102), display (103), show change-over switch (104), and rechargeable battery pack (106), be provided with biogas composition sensor (30) in described air guide channel (102), described pH sensor (20), biogas composition sensor (30), show that change-over switch (104) and rechargeable battery pack (106) are connected in described observing and controlling wafer (101) respectively, described display (103) is connected in described demonstration change-over switch (104), described biogas component sensor (30) is thermal sensor.
2. biogas tester according to claim 1, it is characterized in that, described tester body (10) is provided with from rising in value switch (105), and the described switch (105) that certainly rises in value is connected to described observing and controlling wafer (101) and described demonstration change-over switch (104).
3. biogas tester according to claim 2, it is characterized in that, described tester body (10) is provided with pH sensor interface (1020), and described pH sensor (20) is connected with described observing and controlling wafer (101) by described pH sensor interface (1020).
4. biogas tester according to claim 3, it is characterized in that, described air guide channel (102) is located at a side of described tester body (10), one end of described air guide channel (102) is air intake opening (1021), the other end is gas outlet (1022), described gas outlet (1022) is provided with a slip lid (1023), and described slip lid (1023) is provided with air hole (1024).
5. biogas tester according to claim 4, it is characterized in that, described tester body (10) also is provided with power switch (107), power on light (108), start key (109), under-voltage display lamp (110) and calibration change-over switch (111), and described power switch (107), power on light (108), start key (109), under-voltage display lamp (110) and calibration change-over switch (111) all are connected with described observing and controlling wafer (101).
6. biogas tester according to claim 5, it is characterized in that, described tester body (10) side is provided with pH calibration driver plate (112), concentration calibration driver plate (113) and charge power supply interface (1040), and described pH calibration driver plate (112), concentration calibration driver plate (113) and charge power supply interface (1040) all are connected in described observing and controlling wafer (101).
7. biogas tester according to claim 1, is characterized in that, described pH sensor (20) is glass electrode.
8. biogas tester according to claim 1, is characterized in that, described TT&C system (101) is an Embedded Single Chip Microcomputer (SCM) system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577717 CN202956368U (en) | 2012-11-05 | 2012-11-05 | Biogas tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577717 CN202956368U (en) | 2012-11-05 | 2012-11-05 | Biogas tester |
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| Publication Number | Publication Date |
|---|---|
| CN202956368U true CN202956368U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220577717 Expired - Fee Related CN202956368U (en) | 2012-11-05 | 2012-11-05 | Biogas tester |
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| Country | Link |
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| CN (1) | CN202956368U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807963A (en) * | 2015-04-21 | 2015-07-29 | 国家电网公司 | Device and method for detecting acidity of sulfur hexafluoride gas |
| CN105242018A (en) * | 2015-11-23 | 2016-01-13 | 济南科纳信息科技有限公司 | Marsh gas concentration detecting device |
-
2012
- 2012-11-05 CN CN 201220577717 patent/CN202956368U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807963A (en) * | 2015-04-21 | 2015-07-29 | 国家电网公司 | Device and method for detecting acidity of sulfur hexafluoride gas |
| CN104807963B (en) * | 2015-04-21 | 2016-08-17 | 国家电网公司 | A kind of sulfur hexafluoride gas acidity detection device and method |
| CN105242018A (en) * | 2015-11-23 | 2016-01-13 | 济南科纳信息科技有限公司 | Marsh gas concentration detecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20151105 |
|
| EXPY | Termination of patent right or utility model |