CN101710035A - Smoke dust sampling instrument - Google Patents
Smoke dust sampling instrument Download PDFInfo
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- CN101710035A CN101710035A CN200910223923A CN200910223923A CN101710035A CN 101710035 A CN101710035 A CN 101710035A CN 200910223923 A CN200910223923 A CN 200910223923A CN 200910223923 A CN200910223923 A CN 200910223923A CN 101710035 A CN101710035 A CN 101710035A
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Abstract
The invention discloses a smoke dust sampling instrument, which comprises a sampling tube and an air extracting pump, wherein the air extracting pump is a membrane pump which comprises a pump body; a working cavity is isolated from the cavity of the pump body via a membrane; air inlet and outlet of the pump are communicated with the working cavity respectively, and are provided with one-way valves respectively; the membrane is provided with a connecting rod which is connected with an output shaft of an electric motor via an eccentric device; and the rotation of the output shaft of the electric motor is converted into reciprocating movement of the membrane. The smoke dust sampling instrument of the invention adopts the membrane pump which has low power and can be supplied with power through a built-in battery, so that the smoke dust sampling instrument has the characteristics of small size, convenient use, high reliability, no hidden trouble of blocking, strong corrosion resistance, capacity for resisting corrosion of smoke dust and damage-free property. The smoke dust sampling instrument of the invention can also save energy, and adopts an integrated sampling tube so that the smoke dust sampling instrument can detect smoke dust and flue gas at the same time.
Description
Technical field
The present invention relates to a kind of environmental protection tests equipment, particularly be a kind of can be at the low-power consumption smoke dust sampling instrument of sampling location.
Background technology
Because the environmental pollutions that pollution source caused such as Industrial Boiler, boiler of power plant and Industrial Stoves are quite serious, countries in the world have all been carried out further investigation and have been controlled to this, this just need monitor the graininess dust concentration of its discharging, for pollutant being carried out overall control and pollution control provides decision-making foundation.Monitoring method commonly used at present has sampling weight method, opacity method, optical transmission method, laser back scattering method, charge method, β radiation absorption method (flue build-in test) etc.
Wherein, the sampling weight method is the most widely used now, and its ultimate principle is the ash-laden gas of certain volume, behind the clean filter cylinder by known weight, grit in the flue gas according to the weight difference and the sampling volume of filter cylinder before and after the sampling, is calculated dust content by detention.Because of the gas in the flue has the flow velocity and the pressure of variation, higher temperature and humidity, and comprise the corrosive gas of complicated component, and so must adopt isokinetic sampling's method, require instrument corrosion-resistant, the reliability height, volume is little, and is in light weight.Because sampling weight method accuracy height, precision are good, external many countries are decided to be standard method with the method, China also with the method as the standard of identifying other analytical approach.The constant speed of prior art is followed the tracks of the dust concentration sampling thief and is comprised flue dust collecting unit and isokinetic sampling's control module, the integrated smoke dust sampling pipe in flue dust collecting unit wherein, this integrated smoke dust sampling pipe comprises: smoke dust sampling pipe, temperature sensor, pitot tube and protecting pipe; Obtain flue dust by described flue dust collecting unit and detect sample, and finally calculate dust concentration according to flue dust weight of gathering and sampling volume.
The smoke dust sampling instrument of prior art all is to use direct current or exchanges the dry type sliding vane rotary pump as bleeding power, in order to obtain high negative and rate of air sucked in required, the off-centre of dry type sliding vane rotary pump is done greatlyyer, make that the gap between blade rotor and the cylinder jacket is very little, add the corrosivity of high temperature, high humidity pollution source gas, the dry type sliding vane rotary pump is stuck easily, do not work, and reliability is low, we can say that the fault of dry type sliding vane rotary pump is the topmost fault of smoke dust sampling instrument.
Power can only use AC power or external high-power DC power supply work greater than 100W (flow 50L/min) when the dry type sliding vane rotary pump of prior art was worked, and Heavy Weight carries, uses extremely inconvenient.To on several meters to tens meters high, narrow flue sampling platforms, fetch AC power from workplace, have personal safety hidden danger with patching panel, and the flue that can't arrive in AC power, flue dust detects and can't carry out at all.
In addition, the smoke dust sampling pipe of the smoke dust sampling instrument of prior art and flue gas sampling pipe are independent two, carry, use extremely inconvenient.
The flue gas flow display device of the smoke dust sampling instrument of prior art, filtration unit are installed on the smoke dust sampling instrument main frame, steam in the flue gas and dust can condensations in the flexible pipe that is connected sampling pipe and flow display device, filtration unit, gather, thereby the gaseous contaminant in the absorption flue gas causes gaseous contaminant to measure misalignment.
The smoke dust sampling instrument volume of prior art is big, Heavy Weight, and annex is many, is inconvenient to carry and use.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of smoke dust sampling instrument, and the power of its aspiration pump is low, can be by built-in powered battery, thus make it easy to use, cost is low.
In order to solve the problems of the technologies described above, the invention provides a kind of smoke dust sampling instrument, comprise sampling pipe and aspiration pump, described aspiration pump is a membrane pump, described membrane pump comprises the pump housing, isolate working chamber by barrier film in the pump housing inner chamber, the inlet, outlet of pump communicates with working chamber respectively, is respectively equipped with retaining valve on the inlet, outlet; Described barrier film is provided with connecting rod, and connecting rod is connected with the output shaft of motor by decentralizing device, the rotation of motor output shaft is transformed into the to-and-fro movement of barrier film.
Further, described decentralizing device is a bent axle.
Further, described decentralizing device is an eccentric bushing, and described eccentric bushing is socketed on the output shaft of described motor and is fixing, and the eccentric bushing outside is connected with connecting rod by bearing.
Further, the end that described connecting rod is connected with barrier film is a centrum, and centrum has a side on plane to be provided with the barrier film pressing plate, and described barrier film is clamped between described centrum plane and the barrier film pressing plate, thereby is connected with connecting rod.
Further, also comprise internal battery, described accumulator is connected with described electric electromechanics by control circuit, for described motor provides electric energy.
Further, described sampling pipe comprises handle, and the handle front end is provided with cigarette temperature probe, pitot tube and smoke dust sampling pipe, and the smoke dust sampling pipe is connected with sampling mouth elbow by the filter cylinder cover; Described handle front end also is provided with the flue gas sampling pipe, and described flue gas sampling Guan Yiduan links the steam-water separator that is arranged on the handle, and described steam-water separator also is connected with flowmeter.
Further, described flue gas sampling pipe is arranged on described smoke dust sampling pipe one side.
Further, also comprise isokinetic sampling's control module, described isokinetic sampling's control module comprises the MCU micro treatment module, the stack parameters measurement module, flow measurement module and the flow-control module that link to each other with described MCU micro treatment module, described stack parameters measurement module is connected with described sampling pipe, is used to measure stack parameters; Described flow measurement module links to each other with differential pressure flowmeter, is used to measure flue gas flow; Described flow-control module links to each other with described motor, is used to control motor speed, further controls the flue gas extraction flow.
Further, described isokinetic sampling's control module also comprises display module, memory module, print module and the built-in dc-battery that links to each other with described MCU micro treatment module.
Smoke dust sampling instrument of the present invention and since adopted power low, can pass through the battery-powered membrane pump of in-built electrical, so its volume is little, easy to use; The reliability height does not have stuck hidden danger; And having strong corrosion resistant, the corrosion that can resist flue gas does not damage.Smoke dust sampling instrument of the present invention can also be energy-conservation, and adopt incorporate sampling pipe, can detect flue dust and flue gas simultaneously.
Description of drawings
Fig. 1 is the structural representation of an embodiment of smoke dust sampling instrument septation pump of the present invention;
Fig. 2 is that membrane pump of the present invention is installed on the structural representation in the smoke dust sampling instrument;
Fig. 3 is the structural representation of an embodiment of sampling pipe in the smoke dust sampling instrument of the present invention;
Fig. 4 is the upward view of sampling pipe embodiment shown in Figure 3;
Fig. 5 is the cut-open view at A-A place among Fig. 4.
Among the figure: 1. motor, 2. output shaft, 3. eccentric bushing, 4. bearing, 5. connecting rod, 6. centrum, 7. barrier film pressing plate, 8. barrier film, 9. air intake opening, 10. working chamber, 11. pump housings, 12. membrane pumps, 13. power supply, 14. blower fans, 15. handles, 16. cigarette temperature control heads, 17. pitot tube, 18. sampling pipe elbows, 19. filter cylinder covers, 20. smoke dust sampling pipes, 21. the flue gas sampling pipe, 22. steam-water separators, 23. flowmeters.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, the membrane pump that smoke dust sampling instrument of the present invention used comprises the pump housing 11, isolates working chamber 10 by barrier film 8 in the pump housing 11 inner chambers, and the inlet, outlet of pump communicates 10 with working chamber respectively, is respectively equipped with retaining valve on the inlet, outlet; Barrier film 8 is provided with connecting rod 5, and connecting rod 5 is connected with the output shaft 2 of motor 1 by decentralizing device, the rotation of motor 1 output shaft 2 is transformed into the to-and-fro movement of barrier film 8.In the present embodiment, decentralizing device is an eccentric bushing 3, and this eccentric bushing 3 is socketed on the output shaft 2 of motor 1 and is fixing, and eccentric bushing 3 outsides are connected with connecting rod 5 by bearing 4; Decentralizing device can also be a bent axle.The end that connecting rod 5 is connected with barrier film 8 is a centrum 6, centrum 6 has a side on plane to be provided with barrier film pressing plate 7, barrier film 8 is clamped between centrum 6 planes and the barrier film pressing plate 7, thereby link together with connecting rod 5, it is big that this structure makes that the contact area between barrier film 8 and the connecting rod 5 increases, and makes barrier film 8 not fragile.Wherein, motor 1 is the DC brush or the brushless motor of adjustable speed, and its power consumption is lower than 20W (voltage 12V, flow 50L/min), can use the dc-battery power supply, and its weight can be lower than 0.6kg.Membrane pump volume of the present invention is little, have only the minimum dry type blade aspiration pump that existing smoke dust sampling instrument uses volume 1/2nd, the inner space that can save smoke dust sampling instrument is to reduce the overall volume of smoke dust sampling instrument as far as possible.
Membrane pump of the present invention, because its working chamber 10 separates with running part, so the particle in flue dust or the flue gas can not impact running part, just stuck phenomenon can not take place yet, and improved the reliability of pump greatly.
As shown in Figure 2, above-mentioned membrane pump 12 is packed into behind the smoke dust sampling instrument,, increased the portability of smoke dust sampling instrument, and enlarged range of application by being contained in accumulator or 13 power supplies of other built-in power in the smoke dust sampling instrument.Side at smoke dust sampling instrument inner septum pump 12 also is provided with blower fan 14, and the air intake opening 9 of membrane pump 12 is connected with the sampling gas circuit of smoke dust sampling instrument.
Shown in Fig. 3～5, the sampling pipe of smoke dust sampling instrument of the present invention has comprised handle 15, and the front end of handle 15 is provided with cigarette temperature probe 16, pitot tube 17 and smoke dust sampling pipe 20, and smoke dust sampling pipe 20 is connected with sampling mouth elbow 18 by filter cylinder cover 19; Handle 15 front ends also are provided with flue gas sampling pipe 21, and described flue gas sampling pipe 21 1 ends are linked the steam-water separator 22 that is arranged on the handle 15, and described steam-water separator 22 also is connected with flowmeter 23.Preferably, flue gas sampling pipe 21 is arranged on described smoke dust sampling pipe 20 1 sides.Sampling pipe of the present invention is flue dust, the pipe integrated design of flue gas sampling, the inconvenience that will carry a smoke dust sampling pipe and a flue gas sampling pipe simultaneously when having avoided sampling, and integrated flue dust, when the flue gas sampling pipe is realized identical functions, weight is lighter.
Smoke dust sampling instrument of the present invention also comprises isokinetic sampling's control module, this constant speed controlling of sampling unit comprises MCU (Micro Control Unit, micro-control unit) micro treatment module, the stack parameters measurement module that links to each other with the MCU micro treatment module, flow measurement module and flow-control module.Wherein, the stack parameters measurement module is connected with sampling pipe, is used to measure stack parameters; The flow measurement module links to each other with differential pressure flowmeter, is used to measure flue gas/flue dust flow; Flow-control module links to each other with motor.The little processing mould of MCU receives the stack parameters signal of stack parameters measurement module output and the flue gas/flue dust flow signal of flow measurement module output, control motor speed according to these signals by flow-control module, thereby further control the extraction flow of smoke/gas.
Isokinetic sampling's control module can also comprise display module, memory module, print module and the built-in dc-battery that links to each other with the MCU micro treatment module, be respectively applied for and show correlation parameter, storage correlation parameter and print correlation parameter that dc-battery is used to isokinetic sampling's control module that electric energy is provided.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that those skilled in the art are done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (9)
1. a smoke dust sampling instrument comprises sampling pipe and aspiration pump, it is characterized in that, described aspiration pump is a membrane pump, and described membrane pump comprises the pump housing, isolates working chamber by barrier film in the pump housing inner chamber, the inlet, outlet of pump communicates with working chamber respectively, is respectively equipped with retaining valve on the inlet, outlet; Described barrier film is provided with connecting rod, and connecting rod is connected with the output shaft of motor by decentralizing device, the rotation of motor output shaft is transformed into the to-and-fro movement of barrier film.
2. smoke dust sampling instrument according to claim 1 is characterized in that, described decentralizing device is a bent axle.
3. smoke dust sampling instrument according to claim 1 is characterized in that, described decentralizing device is an eccentric bushing, and described eccentric bushing is socketed on the output shaft of described motor and is fixing, and the eccentric bushing outside is connected with connecting rod by bearing.
4. smoke dust sampling instrument according to claim 1, it is characterized in that the end that described connecting rod is connected with barrier film is a centrum, centrum has a side on plane to be provided with the barrier film pressing plate, described barrier film is clamped between described centrum plane and the barrier film pressing plate, thereby is connected with connecting rod.
5. smoke dust sampling instrument according to claim 1 is characterized in that, also comprises internal battery, and described accumulator is connected with described electric electromechanics by control circuit, for described motor provides electric energy.
6. smoke dust sampling instrument according to claim 1 is characterized in that described sampling pipe comprises handle, and the handle front end is provided with cigarette temperature probe, pitot tube and smoke dust sampling pipe, and the smoke dust sampling pipe is connected with sampling mouth elbow by the filter cylinder cover; Described handle front end also is provided with the flue gas sampling pipe, and described flue gas sampling Guan Yiduan links the steam-water separator that is arranged on the handle, and described steam-water separator also is connected with flowmeter.
7. smoke dust sampling instrument according to claim 6 is characterized in that, described flue gas sampling pipe is arranged on described smoke dust sampling pipe one side.
8. according to claim 6 or 7 described smoke dust sampling instruments, it is characterized in that, also comprise isokinetic sampling's control module, described isokinetic sampling's control module comprises the MCU micro treatment module, the stack parameters measurement module, flow measurement module and the flow-control module that link to each other with described MCU micro treatment module, described stack parameters measurement module is connected with described sampling pipe, is used to measure stack parameters; Described flow measurement module links to each other with differential pressure flowmeter, is used to measure flue gas flow; Described flow-control module links to each other with described motor, is used to control motor speed, further controls the flue gas extraction flow.
9. smoke dust sampling instrument according to claim 8 is characterized in that, described isokinetic sampling's control module also comprises display module, memory module, print module and the built-in dc-battery that links to each other with described MCU micro treatment module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910223923A CN101710035B (en) | 2009-11-19 | 2009-11-19 | Smoke dust sampling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910223923A CN101710035B (en) | 2009-11-19 | 2009-11-19 | Smoke dust sampling instrument |
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| CN101710035A true CN101710035A (en) | 2010-05-19 |
| CN101710035B CN101710035B (en) | 2012-09-05 |
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| CN200910223923A Active CN101710035B (en) | 2009-11-19 | 2009-11-19 | Smoke dust sampling instrument |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975732A (en) * | 2010-09-19 | 2011-02-16 | 武汉市天虹仪表有限责任公司 | Portable automatic continuous concentration monitor for particulate matter |
| CN102095673A (en) * | 2010-12-28 | 2011-06-15 | 武汉市天虹仪表有限责任公司 | Smoke concentration direct reading monitor |
| CN102213211A (en) * | 2011-06-13 | 2011-10-12 | 无锡格林通安全装备有限公司 | Gas-sampling diaphragm pump |
| CN102401754A (en) * | 2010-09-14 | 2012-04-04 | 中国石油化工股份有限公司 | Combined type flue dust sampler |
| CN103513053A (en) * | 2012-06-29 | 2014-01-15 | 中国科学院大连化学物理研究所 | Device for synchronously adjusting direction of pitot tube sampling hole and sampling gun in rotating mode |
| CN104458356A (en) * | 2013-09-22 | 2015-03-25 | 中国科学院大连化学物理研究所 | Flue gas sampling gun and operating method thereof |
| CN107401937A (en) * | 2017-08-04 | 2017-11-28 | 斯养武 | Heat exchanger and boiler |
| CN109425504A (en) * | 2017-08-24 | 2019-03-05 | 株式会社岛津制作所 | Gas sampling probe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2257569Y (en) * | 1996-05-21 | 1997-07-09 | 北京市劳动保护科学研究所 | Film pump |
| US6042634A (en) * | 1998-04-22 | 2000-03-28 | Bacharach, Inc. | Moisture extractor system for gas sampling |
| CN2729685Y (en) * | 2004-09-21 | 2005-09-28 | 长春吉大·小天鹅仪器有限公司 | Digital atmospheric sampling apparatus |
| CN201327455Y (en) * | 2008-12-23 | 2009-10-14 | 青岛崂山应用技术研究所 | Smoke dust tester |
| CN201540222U (en) * | 2009-11-19 | 2010-08-04 | 武汉市天虹仪表有限责任公司 | Smoke durst sampler |
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2009
- 2009-11-19 CN CN200910223923A patent/CN101710035B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401754A (en) * | 2010-09-14 | 2012-04-04 | 中国石油化工股份有限公司 | Combined type flue dust sampler |
| CN101975732A (en) * | 2010-09-19 | 2011-02-16 | 武汉市天虹仪表有限责任公司 | Portable automatic continuous concentration monitor for particulate matter |
| CN101975732B (en) * | 2010-09-19 | 2012-11-28 | 武汉市天虹仪表有限责任公司 | Portable automatic continuous concentration monitor for particulate matter |
| CN102095673A (en) * | 2010-12-28 | 2011-06-15 | 武汉市天虹仪表有限责任公司 | Smoke concentration direct reading monitor |
| CN102095673B (en) * | 2010-12-28 | 2013-04-03 | 武汉市天虹仪表有限责任公司 | Smoke concentration direct reading monitor |
| CN102213211A (en) * | 2011-06-13 | 2011-10-12 | 无锡格林通安全装备有限公司 | Gas-sampling diaphragm pump |
| CN103513053A (en) * | 2012-06-29 | 2014-01-15 | 中国科学院大连化学物理研究所 | Device for synchronously adjusting direction of pitot tube sampling hole and sampling gun in rotating mode |
| CN104458356A (en) * | 2013-09-22 | 2015-03-25 | 中国科学院大连化学物理研究所 | Flue gas sampling gun and operating method thereof |
| CN107401937A (en) * | 2017-08-04 | 2017-11-28 | 斯养武 | Heat exchanger and boiler |
| CN107401937B (en) * | 2017-08-04 | 2024-04-12 | 斯养武 | Heat exchanger and boiler |
| CN109425504A (en) * | 2017-08-24 | 2019-03-05 | 株式会社岛津制作所 | Gas sampling probe |
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| CN101710035B (en) | 2012-09-05 |
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