CN202075193U - Comprehensive flue gas analyzer - Google Patents
Comprehensive flue gas analyzer Download PDFInfo
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- CN202075193U CN202075193U CN2011200259535U CN201120025953U CN202075193U CN 202075193 U CN202075193 U CN 202075193U CN 2011200259535 U CN2011200259535 U CN 2011200259535U CN 201120025953 U CN201120025953 U CN 201120025953U CN 202075193 U CN202075193 U CN 202075193U
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Abstract
The utility model discloses a comprehensive flue gas analyzer, which comprises a shell, a particulate cutter, a sampling tube, a flowmeter and a sucking pump. The particulate cutter is connected to the top of the sampling tube, and the flowmeter is connected with the sucking pump and arranged between the sucking pump and the sampling tube. The comprehensive flue gas analyzer is characterized in that a detection unit is further arranged between the sampling tube and the flowmeter and connected with the flowmeter through a hose, the detection unit comprises an oscillation tube protective layer, an oscillation drive and detection circuit, an oscillation tube, a filter film and an adsorption filter unit, the bottom of the oscillation tube is connected with the adsorption filter unit, the hose penetrates through the oscillation tube protective layer to be communicated with the adsorption filter unit, a micro steel magnet is disposed at the top of the oscillation tube and connected with the oscillation drive and detection circuit, and the filter film is disposed between the sampling tube and the oscillation tube. The comprehensive flue gas analyzer is high in sensibility and accuracy, fine in stability, flexible in use, high in applicability, capable of fully automatically measuring large-range components to be tested in real time, and convenient in maintenance.
Description
Technical field
The utility model relates to a kind of gas comprehensive detector, especially relate to a kind of can be with the particle concentration in all kinds of waste gas that detect atmosphere or gaseous contamination source emission and the gas analyzer of all gases concentration of component.This product can be used numerous areas such as environmental monitoring, safety inspection, emergent detection, gas analysis, biology, chemical industry, scientific experiment.
Background technology
Clean atmosphere is that the mankind rely in one of necessary condition of surviving, and along with the continuous development of industry and transportation, a large amount of objectionable impuritiess is discharged in the air, has changed the normal composition of air, and air quality is degenerated.Health will be affected live in the air that is polluted when us among.
Atmosphere suspended particulate substance (also claiming gasoloid) is one of important indicator of estimating air quality.Along with China's industrialization and high speed development of national economy, the atmosphere suspended particulate substance is increasing to the influence of atmospheric environment.Adopt gravimetric method to measure total suspended particles substrate concentration in the atmosphere traditionally, generally be divided into big flow (1.1-1.7m with the method for overall suspended pellet in the gravimetric determination atmosphere
3/ min) and middle flow (0.05-0.15m
3/ min) sampling method. its principle based on: extract the air of certain volume, make it by constant weight filter membrane, then suspended particulates are delayed on the filter membrane, according to the difference and the gas production volume of filter membrane weight before and after the sampling, can calculate the mass concentration of overall suspended pellet.
And be solution absorption method for the common method of the gaseous state in the gas, steam-like and some aerosol contaminants matter, its principle will be for will predict that with air extractor gas is equipped with the absorption tube (bottle) of absorption liquid with the certain flow suction, the molecule detention that makes measured matter has reached concentrated purpose in absorption liquid.Analyze the concentration of measured matter in the liquid then by diverse ways, can draw the concentration of measured matter by converting.
These two kinds of methods all exist needs manual operations, it is more and running program is numerous and diverse, take the room and shortcomings such as equipment is more, the sampling time is long, the apparatus guarantee amount is big, cost cost height to influence the factor of measuring accuracy.
Existing a lot of gas analyzing apparatus is basically based on sampling thief, can be in conjunction with the characteristics of various sampling method accuracys, and can carry out automatically, the instruments of the various components of continuous detecting gas are considerably less.
Summary of the invention
At the deficiency that prior art exists, technical problem to be solved in the utility model is, provide a kind of simple in structure, flexibly accurately, can be used for the flue gas analyzer that various particle contents detect in the gas.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of smoke comprehensive analyser, it comprises shell, be used to gather the particle cutter of gas, be used to control the flowmeter of sample gas flow, the sampling pipe of control collecting granules thing gas, sampling pipe also is provided with heat-insulation layer outward, the sampling pipe well heater is set outside heat-insulation layer, described sampling pipe bottom connects aspiration pump, and the top connects the particle cutter, between aspiration pump and sampling pipe flowmeter is set; Also be provided with detecting unit between sampling pipe and flowmeter, detecting unit is by flexible pipe connection traffic meter; Described detecting unit comprises oscillating tube protective seam, vibration driving and testing circuit, oscillating tube, filter membrane, adsorption filtration unit; The oscillating tube bottom is connected with the adsorption filtration unit, and flexible pipe passes the oscillating tube protective seam and is communicated with the adsorption filtration unit; The oscillating tube top is provided with little magnet steel, and little magnet steel drives testing circuit with vibration and is connected; Filter membrane is arranged between sampling pipe and the oscillating tube.
Above-mentioned smoke comprehensive analyser, described outer casing bottom is provided with rubber blanket.
The beneficial effects of the utility model are: instrument is based on the little mass measurement principle of oscillating element, therefore highly sensitive, accuracy is high, good stability, volume is small and exquisite, use is flexible, adaptive faculty is strong, long service life, can automatically measure in real time, component to be measured can freely be selected, arbitrarily collocation, and is easy to maintenance.It is a multi-field multifunctional gas synthesis analyzer that can be used for.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is a shape assumption diagram of the present utility model;
Fig. 2 is the full sectional view of A-A among Fig. 1.
Embodiment
As Fig. 1, shown in 2, a kind of smoke comprehensive analyser, it comprises shell 19, the handle of being convenient to move 7 is set on shell, be used to gather the particle cutter 1 of gas, particle cutter 1 bottom is equipped with successively impacts orifice plate 2 and crash panel 3, be used to control the flowmeter 15 of sample gas flow, the sampling pipe 4 of control collecting granules thing gas, sampling pipe 4 outer heat-insulation layers 5 in addition, sampling pipe well heater 6 is set outside heat-insulation layer 5, joint detection unit, described sampling pipe 4 bottom 20 also passes through detecting unit 20 connection aspiration pumps 18, and sampling pipe 4 tops connect particle cutter 1, are provided with the flowmeter 15 of detection and Control Flow between aspiration pump 18 and sampling pipe 4.Described detecting unit 20 comprises detecting unit shell 21, oscillating tube protective seam 11, vibration driving and testing circuit 9, oscillating tube 12, adsorption filtration unit 23.Be provided with vibration detecting unit heat-insulation layer 14 outside the oscillating tube protective seam 11, filter membrane 8 is set in adsorption filtration unit 23, filter membrane 8 is between sampling pipe 4 and oscillating tube 12; Oscillating tube 12 is communicated with aspiration pump 18 by flexible pipe 13, difference according to testing goal, filter membrane 8 can change the weight of self because of the difference of testing sample, thereby cause the quality at whole oscillating tube top to change, and cause the change of oscillating tube natural frequency, measure the content of detected material by the variation that detects this frequency.Oscillating tube 12 bottoms and oscillating tube protective seam 11 are fixing, and the top is provided with little magnet steel 24, and described little magnet steel 24 drives testing circuit 9 with vibration and is connected.On shell 19, be provided with the demonstration and the control system 10 that are connected with adsorption filtration unit 23.In shell 19 bottoms rubber blanket 17 is set, the shell side is provided with power supply 16.
Instrument adopts the vibration sedimentation balance method, and measuring principle is based on the little mass measurement principle of oscillating element.The core of this instrument is a flexible hollow oscillating tube, its bottom is fixed, the top end is equipped with selects absorption or filter element, this unit is under no restraint, can freely swing, the oscillating tube top accurately vibrates with natural frequency under the driving of driver element, when different gas compositions or particle flow through the adsorption filtration unit, this element quality will change, thereby cause the change of vibration frequency natural frequency, because gas stream is crossed the flow velocity of oscillating tube and is fixed, the therefore variation that can measure measured matter by the variation of frequency in the certain hour.
The specific implementation way of this machine is, flexible hollow oscillating tube bottom is fixed on the oscillation test cell enclosure, and the upper end of this shell is fixed with drive circuit board, this circuit board comprises electromagnet and magnetic signal detecting device, the oscillating tube top then speckles with two little magnet steel, we are by the size and Orientation of driving circuit change by current of electromagnet, set up the magnetic field of a variation at the oscillating tube top, force the magnet steel in this magnetic field to move, thereby driving the oscillating tube top moves at magnetic direction together, the magnetic field shift conversion that while magnetic signal detecting device causes little magnetic steel displacement is an electric signal, feed back to driving circuit, driving circuit is adjusted the size and Orientation of solenoid driver circuit again according to feedback signal, finally make the oscillating tube top in the oscillation test unit with the stable vibration of its natural frequency, and the top of our hollow oscillating tube is inserted with the adsorption filtration unit that has filter membrane or adsorbent, difference according to testing goal, the adsorption filtration unit can change the weight of self according to the difference of test substance, thereby cause the quality at whole oscillating tube top to change, and causing the change of oscillating tube natural frequency, we measure the content of detected material again by the variation that detects this frequency.
Little quality vibration balance is by being equipped with different cutters and filtering membrane, can be used to measure TSP, PM10, PM5 and PM2.5, can be used in the concentration of particle in the real-time continuous detected gas, and by using the absorbing unit through the specific adsorptive power of demarcating, in just can measurement gas specific components material concentration, its measuring accuracy and real-time are that classic method is incomparable.Instrument can be measured one time vibration frequency several seconds, can export a minute average, hour average annual average etc. simultaneously.
Its workflow is as follows: under constant rate is bled the effect of unit, the gas that has a suspended particulate substance is inhaled into cutter 1 with the speed of standard code, gas stream is through impacting the perforate of orifice plate 2, quicken under the effect of gas pressure reduction before and after perforate, rush at crash panel 3 through the gas that quickens, heavier suspended particulate substance is because inertia can't the change with airflow direction change direction of motion more greatly in limited space, thereby can be under stopping on the crash panel 3, remaining gas to be measured enters the sampling pipe 4 that is heated to constant temperature among the gas pre-processing assembly a, gas is heated to the steady temperature value of setting in moving process, enter into detecting unit c afterwards, because having only by oscillating tube 12, gas could flow into pipeline afterwards, so be exactly to force gas stream after filter membrane 8 filters, to enter the oscillating tube that just under natural frequency, is vibrating 12 that drives by oscillation control circuit, simultaneously because the diameter of the outlet of sampling pipe 4 is significantly less than the diameter of filter membrane 8, suspended particulate substance to be measured moves to filter membrane 8 under the double action of inertial force and fluid internal friction, and finally be trapped within on the filter membrane 8, therefore the quality of filter membrane 8 also can increase simultaneously, the corresponding change of natural frequency meeting of oscillating body, demonstration and the variation that this frequency is small of control circuit part are scaled the concentration value of tested suspended particulate substance, and storage and demonstration.Through the gas after filtration as required can by flexible pipe 13 again the detecting unit c of other function of serial or parallel connection just can measure other gas componant, filter membrane 8 internal fixation of this gas detection cell c have specific adsorbent, absorption or desorption on this adsorbent that tested gas group branch does not stop, and the gross mass of tested gas absorption on adsorbent follows the concentration of this gas to exist linear relationship, this concentration relationship also can be reflected on the vibration frequency of this oscillating body, and how much concentration that can calculate current this gas composition by the frequency values that calculates it is.The unit is made up of flowmeter 15 and aspiration pump 18 and control corresponding and testing circuit and constant rate is bled, and it provides power for whole air-channel system, keeps measurement gas on the constant set flow value.
This gas comprehensive detector uses flexibly, as the particle concentration below the need measurement special diameter, only need change corresponding specification into impacting orifice plate, and then the detecting unit after the gas pre-processing assembly select the particle detecting unit can finish to below the special diameter the measurement of particle concentration.As also measuring specific gas component, the measurement gas that allows a unit discharge enters corresponding gas composition detecting unit again and gets final product, and detecting unit filter membrane 8 selects for use corresponding adsorbent diaphragm to get final product; Only do not survey specific gas component if do not measure particle concentration, impact orifice plate 2 can remove the particle detecting unit simultaneously with the filter membrane replacement and get final product.
Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement all should belong to protection domain of the present utility model.
Claims (3)
1. smoke comprehensive analyser, it comprises shell, particle cutter, sampling pipe, flowmeter, aspiration pump, and the sampling pipe top connects the particle cutter, and flowmeter connects aspiration pump between aspiration pump and sampling pipe; It is characterized in that: also be provided with detecting unit between sampling pipe and flowmeter, detecting unit is by flexible pipe connection traffic meter; Described detecting unit comprises oscillating tube protective seam, vibration driving and testing circuit, oscillating tube, filter membrane, adsorption filtration unit; The oscillating tube bottom is connected with the adsorption filtration unit, and flexible pipe passes the oscillating tube protective seam and is communicated with the adsorption filtration unit; The oscillating tube top is provided with little magnet steel, and little magnet steel drives testing circuit with vibration and is connected; Filter membrane is arranged between sampling pipe and the oscillating tube.
2. smoke comprehensive analyser according to claim 1 is characterized in that: the oscillating tube protective seam is provided with the vibration detecting unit heat-insulation layer outward.
3. smoke comprehensive analyser according to claim 2 is characterized in that: described outer casing bottom is provided with rubber blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200259535U CN202075193U (en) | 2011-01-26 | 2011-01-26 | Comprehensive flue gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200259535U CN202075193U (en) | 2011-01-26 | 2011-01-26 | Comprehensive flue gas analyzer |
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|---|---|
| CN202075193U true CN202075193U (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200259535U Expired - Fee Related CN202075193U (en) | 2011-01-26 | 2011-01-26 | Comprehensive flue gas analyzer |
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| CN (1) | CN202075193U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636621A (en) * | 2012-03-31 | 2012-08-15 | 北京盈胜泰科技术有限公司 | Portable PM2.5 (Particulate Matter 2.5) monitoring equipment and method |
| CN103196737A (en) * | 2013-04-21 | 2013-07-10 | 青岛众瑞智能仪器有限公司 | Device and method capable of preventing large particle impurities from entering optical detection cavity |
| CN104075957A (en) * | 2013-03-29 | 2014-10-01 | 天津同阳科技发展有限公司 | Trace particulate matter measuring system based on composite tube oscillation balance and measuring method thereof |
| CN104204763A (en) * | 2012-03-27 | 2014-12-10 | 沃勒测量清洁设备有限公司 | Measuring device |
| CN105424567A (en) * | 2015-11-26 | 2016-03-23 | 黑龙江科技大学 | Dust measurement device based on resonance theory |
| CN105733934A (en) * | 2016-02-23 | 2016-07-06 | 中国检验检疫科学研究院 | Electromagnetic excitation magnetic bead rotary type microbiological aerosol collecting and enriching instrument |
| CN106442244A (en) * | 2016-10-09 | 2017-02-22 | 江苏大学 | Portable PM-2.5 detecting device and method based on microfluidics |
| CN107807073A (en) * | 2017-11-07 | 2018-03-16 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of boiler smoke detection means |
| CN108982282A (en) * | 2018-10-15 | 2018-12-11 | 南安市傅泉机械科技有限公司 | A kind of dust granule detection device for the trace oscillating balance method that winter uses |
-
2011
- 2011-01-26 CN CN2011200259535U patent/CN202075193U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104204763B (en) * | 2012-03-27 | 2017-05-31 | 沃勒科技有限公司 | For the measurement apparatus measured to the dust in waste gas |
| CN104204763A (en) * | 2012-03-27 | 2014-12-10 | 沃勒测量清洁设备有限公司 | Measuring device |
| CN102636621A (en) * | 2012-03-31 | 2012-08-15 | 北京盈胜泰科技术有限公司 | Portable PM2.5 (Particulate Matter 2.5) monitoring equipment and method |
| CN104075957A (en) * | 2013-03-29 | 2014-10-01 | 天津同阳科技发展有限公司 | Trace particulate matter measuring system based on composite tube oscillation balance and measuring method thereof |
| CN104075957B (en) * | 2013-03-29 | 2017-08-25 | 天津同阳科技发展有限公司 | Micro particulate measurement system and its measuring method based on multiple tube oscillating balance |
| CN103196737A (en) * | 2013-04-21 | 2013-07-10 | 青岛众瑞智能仪器有限公司 | Device and method capable of preventing large particle impurities from entering optical detection cavity |
| CN105424567A (en) * | 2015-11-26 | 2016-03-23 | 黑龙江科技大学 | Dust measurement device based on resonance theory |
| CN105733934B (en) * | 2016-02-23 | 2018-01-19 | 中国检验检疫科学研究院 | A kind of rotary-type microbial aerosol collection enriching instrument of electromagnetic excitation magnetic bead |
| CN105733934A (en) * | 2016-02-23 | 2016-07-06 | 中国检验检疫科学研究院 | Electromagnetic excitation magnetic bead rotary type microbiological aerosol collecting and enriching instrument |
| CN106442244A (en) * | 2016-10-09 | 2017-02-22 | 江苏大学 | Portable PM-2.5 detecting device and method based on microfluidics |
| CN106442244B (en) * | 2016-10-09 | 2019-03-05 | 江苏大学 | It is a kind of based on micro-fluidic portable PM2.5 detection device and method |
| CN107807073A (en) * | 2017-11-07 | 2018-03-16 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of boiler smoke detection means |
| CN107807073B (en) * | 2017-11-07 | 2020-03-20 | 无锡艾科瑞思产品设计与研究有限公司 | Boiler flue gas detection device |
| CN108982282A (en) * | 2018-10-15 | 2018-12-11 | 南安市傅泉机械科技有限公司 | A kind of dust granule detection device for the trace oscillating balance method that winter uses |
| CN108982282B (en) * | 2018-10-15 | 2020-10-20 | 泉州市惠安碧益茶业有限公司 | Dust particle detection device of micro-oscillation balance method used in winter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20120126 |