CN205067466U - A instrument for detecting dioxin content in flue gas - Google Patents
A instrument for detecting dioxin content in flue gas Download PDFInfo
- Publication number
- CN205067466U CN205067466U CN201520822044.2U CN201520822044U CN205067466U CN 205067466 U CN205067466 U CN 205067466U CN 201520822044 U CN201520822044 U CN 201520822044U CN 205067466 U CN205067466 U CN 205067466U
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- storage tank
- flue gas
- sample storage
- stopple coupon
- instrument
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- 239000003546 flue gas Substances 0.000 title claims abstract description 60
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 56
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 title abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 239000008367 deionised water Substances 0.000 claims abstract description 14
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 14
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 claims description 29
- 150000002013 dioxins Chemical class 0.000 claims description 17
- 230000000630 rising effect Effects 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 2
- 238000005070 sampling Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 26
- 239000012535 impurity Substances 0.000 description 18
- 239000000126 substance Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010224 classification analysis Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
The utility model relates to an industrial pollution thing detects technical field, concretely relates to an instrument for detecting dioxin content in flue gas. An instrument for detecting dioxin content in flue gas, including the sampling tube that is used for drawing the flue gas that awaits measuring in the stove, the storage appearance jar that contains deionized water is connected to the sampling tube, jar body upper portion is equipped with the sample connection, the lower part is equipped with into water pipe connector and play water pipe connector, three interface and sampling tube all are equipped with the valve, the pipe wall of sampling tube is equipped with the heat preservation between rather than outer sampling tube shell, the end of giving vent to anger of sampling tube stretches into and stores up under the appearance jar interior liquid level face, from the cavity evacuation of sample interface connection evacuation pump to liquid level face top, be used for sending into behind the suction dioxin analytical instrument. Due to the adoption of the technical scheme, the utility model has the advantages of to the ability that the dioxin in the high temperature flue gas carries out complete sample circuit analysis, has improved and has measured and analysis precision, have simultaneously require measuring equipment's heat resistance lower, operation process safe and reliable.
Description
Technical field
The utility model relates to gas detection technology field, is specifically related to a kind of instrument for detecting dioxins concentration in flue gas.
Background technology
Due to the propelling of process of industrialization, ecology suffers continuous destruction, and all kinds of environmental problem comes out gradually.How to administer the concern problem that all kinds of pollution becomes current social and scientific circles.Along with the progress of science and technology, the living standard of human society continues to rise day by day, and what improve along with quality of life is the increase gradually of house refuse and industrial refuse.The domestic and international common practice for garbage disposal transfers burning disposal to by traditional landfill at present.Burning process not only can solve the destroyed problem of soil that landfill brings, carry out recycling after the thermal energy collecting that burning process can also be produced and reach energy-conservation object, heat energy not only can be heated up water by boiler of feeding, produces steam and its pushing generator can also be utilized to generate electricity.But the predicament of the certain reduction of discharging brought while energy-conservation.Rubbish is when burning disposal, if can accomplish Thorough combustion, its fume emission will greatly reduce, and also can reduce the release of objectionable impurities simultaneously.But because current technology cannot accomplish to make rubbish Thorough combustion in the situation taking into account economy and efficiency, the discharge of harmful smoke therefore effectively cannot be controlled.How exactly the dioxins concentration detected in flue gas improves the key improving burning or equipment for gasification quality.Be subject to technical limitation, in current industrial, for dioxins concentration in mensuration flue gas, there are the following problems: 1) direct method: directly stretched in furnace high-temperature flue gas the test side of temperature testing equipment and detect, but because flue-gas temperature is now greater than 1000 degrees Celsius usually, the heat resistance for detection means requires too high; 2) indirect method: detect after high-temperature flue gas is exported in stove, due to extraneous high-temperature flue gas can in cooling procedure composite part dioxin again, therefore the data that record of the method are inaccurate.And, general all containing a large amount of dust-like objectionable impurities in flue gas, by indirect method in the process analyzing dioxin, if this kind of dust material enters analytical instrument, the filter paper that easy blocking is analyzed, makes the frequency changing filter paper greatly increase, and not only increases testing cost and the complicated degree of operation, and the life-span of equipment can be reduced, also can cause interference to final dioxin testing result.
For the problems referred to above, need more economical reliable in industry, measurement result possesses precisely and the test mode of stability or testing apparatus.
Utility model content
The purpose of this utility model is, providing a kind of instrument for detecting dioxins concentration in flue gas, solving above technical matters.
The technical matters that the utility model solves can realize by the following technical solutions:
A kind of instrument for detecting dioxins concentration in flue gas, comprise one and be convenient to stretch in flue the stopple coupon extracting flue gas to be measured, high-temperature flue gas is extracted via stopple coupon and delivers to analytical instrument and detect, to measure the content of contained dioxin in flue gas, it is characterized in that, described stopple coupon connects one for filtering dust material in flue gas and the sample storage tank making high-temperature flue gas lower the temperature rapidly, above liquid level face, a cavity is formed after holding a certain amount of deionized water in described sample storage tank, low aqueous solubility contained in flue gas or non-water soluble substance are in described cavity after isolating in water body, dust-like objectionable impurities in flue gas is then dissolved in water, it is made to avoid the interference detected dioxin, simultaneously, after high-temperature flue gas enters water body, heat interchange is fast carried out with water body, its temperature is declined rapidly,
The top of described sample storage tank is provided with a sample connection, after described sample connection connects a vacuum pump, the cavity above liquid level face in sample storage tank is vacuumized, described vacuum pump connects the analytical instrument being used for detecting dioxin, is transported in analytical instrument and carries out analyzing and measuring after the dioxin in water body is sucked out.
The utility model directly sends into the traditional detection mode of analytical instrument to the hurtful problem of checkout equipment after not only solving and extract high-temperature flue gas from flue, also improves after extracting flue gas by sending into traditional indirect method detection method of analytical instrument after cooling.The dioxin composition problem again adopting device of the present utility model effectively can avoid the cooling due to high-temperature flue gas slowly to cause, prevents the dioxin synthesized again from causing testing result inaccurate to Interference Detection process; Simultaneously, also filtration treatment has been carried out for the dust-like objectionable impurities in flue gas, make it dissolve and precipitate in water body, the filter paper arranged in it is blocked after avoiding dust-like objectionable impurities to enter analytical instrument, both the problem that filter paper is changed and the testing process that causes is loaded down with trivial details had been solved, avoid the rising of testing cost, turn avoid the problem that dust-like objectionable impurities has influence on testing result.
Described sample storage tank is provided with a water inlet tube interface, to sample storage tank in carries deionized water after outreaching inlet channel by it, and described water inlet tube interface is arranged at the bottom of described sample storage tank.
In described sample storage tank water body liquid level face above and below volumetric ratio be 1/5 ~ 1/2, preferably 1/5 ~ 1/3, wherein, above liquid level face, volume is the volume of described cavity, and below liquid level face, volume is the volume of water body.
The bottom of described sample storage tank is provided with a rising pipe interface, after connecting outlet conduit thereon, the water body in sample storage tank is externally exported, to carry out determination and analysis to the objectionable impurities wherein precipitated, coordinate the testing result for dioxin, complete the macroanalysis to harmful substances from flue gases.
The inlet end of described stopple coupon stretches out in that described sample storage tank is outer, described sample storage tank is stretched in outlet side and to be immersed in tank below liquid level face.
Distance in the outlet side of described stopple coupon and described sample storage tank between liquid level face is 50mm ~ 200mm, preferred 100mm ~ 150mm.
Being provided with a liquid level detection device in described sample storage tank, for detecting liquid level face height in sample storage tank, to control the filling amount of deionized water, guaranteeing that the distance that stopple coupon outlet side is stretched in sample storage tank below liquid level face remains in the scope of 50mm ~ 200mm.
Described liquid level detection device preferably adopts liquid level gauge.
The utility model in actual use, in sample storage tank, the height in liquid level face is arranged, namely in sample storage tank setting and stopple coupon outlet side and the distance in liquid level face of the upper and lower volumetric ratio in liquid level face arrange finally depend on the vacuum pump that is connected with sample connection vacuumize performance, when arranging, with vacuum pump can smoothly by the water-insoluble gas sucking-off in liquid for arranging benchmark.
The caliber of described stopple coupon is 10mm ~ 30mm, preferred 20mm ~ 30mm.
The volume of described sample storage tank is greater than 30ml.
Described sample storage tank is provided with double-deck outer wall, and double-deck sample storage tank wall can effectively avoid ambient temperature produce interference to operating mode in tank and affect sampling precision.
The bottom of described sample storage tank is provided with support, and described support adopts height-adjustable support, is convenient to sampling spot sample storage tank being positioned over differing heights.
The outside of described stopple coupon is provided with the stopple coupon housing for the protection of stopple coupon, and described stopple coupon housing is coated on the tube wall that stopple coupon stretches out in outside sample storage tank, and exposes the inlet end opening of stopple coupon.
Fill area is formed after keeping at a certain distance away between described stopple coupon inner walls and described stopple coupon outer wall, a heat-insulation layer is formed within it after fill insulant material, for eliminating the too fast defect of stopple coupon exposed parts heat interchange, maintain the temperature of this partial interior conveying gas, avoid below flue gas cool-down to 600 degree Celsius to cause in flue gas again composite part dioxin and destroy the accuracy of follow-up measurement.
The heat-insulation layer that described heat-insulation layer preferably adopts heat-preservation cotton to make.
The thickness of described heat-insulation layer is 1.5 times ~ 3 times of described stopple coupon caliber, preferably 2 times.
Described stopple coupon interface, described water inlet tube interface, described rising pipe interface and described stopple coupon are equipped with valve.
When the utility model carries out sampling operation, undertaken by following operation steps:
1) end of bleeding of vacuum pump be connected sample connection with outlet side respectively by pipeline and to the analytical instrument that dioxin detects, guarantee that the valve of stopple coupon interface, water inlet tube interface, rising pipe interface and stopple coupon is in closed condition;
2) open the valve of water inlet tube interface, deionized water is filled with in sample storage tank, and observe liquid level detection device to guarantee that liquid level face height arrives setting value;
3) close the valve of water inlet tube interface, make sample storage tank be air-tight state;
4) valve of sample connection and the valve of stopple coupon is opened, and the inlet end of stopple coupon is stretched in flue, then start vacuum pump to vacuumize cavity above sample storage tank liquid level face, the air intake opening of pressure official post stopple coupon produces suction and sucks in the deionized water in sample storage tank by the flue gas in flue, water-fast dioxin is inhaled into analytical instrument, is obtained the testing result of dioxin by analytical instrument;
5) close sample connection valve and stopple coupon valve, open the valve of rising pipe interface, discharge the deionized water containing dust-like objectionable impurities and carry out sample analysis, obtain the testing result of dust-like objectionable impurities;
6) in conjunction with the testing result of dioxin and the testing result of dust-like objectionable impurities, the macroanalysis result to harmful substances from flue gases in flue is obtained.
The utility model adopts and is delivered in water body by high-temperature flue gas, and the dust-like objectionable impurities in flue gas and dioxin are separated by the mode forming cavity above water body, and carry out classification analysis detection after being exported respectively by sample connection and rising pipe interface, thus achieve the macroanalysis of harmful substances from flue gases in flue, ensure that the integrality of testing process and the accuracy of testing result.
The utility model is before sampling operation, due to the air of part for draining all may be remained in stopple coupon and each conveyance conduit, this part air will have an impact for sampling and testing result, therefore for avoiding this part disturbing factor, before sampling operation, one scheduled job is set, stopple coupon will be remained in by scheduled job, air in each conveyance conduit and sample storage tank drains, it is avoided to produce interference to testing result, also the gas being in flue outlet section is discharged simultaneously, this portion gas is due to larger by ectocine closest to external environment condition, its temperature is unstable, easily the inaccurate of testing result is caused because temperature reduction makes dioxin synthesize again in stopple coupon course of conveying.During scheduled job operation, in described sampling job step 1) basis on, valve on sample connection and stopple coupon is all opened, then open vacuum pump to vacuumize, to discharge residual air and flue outlet section gas, certain time vacuumizes rear closedown vacuum pump, and close the valve of stopple coupon and the valve of sample connection, then the valve of water inlet tube interface and rising pipe interface is opened, original water storage in sample storage tank is made thoroughly to be replaced by the water body be newly filled with after continuing for some time, to discharge the deionized water by flue outlet section gases affect, also complete described sampling job step 2) simultaneously, subsequent samples operation can be carried out.
Beneficial effect: owing to adopting technique scheme, the utility model has the ability of the dioxin in high-temperature flue gas being carried out to complete sampling and analysing, improve measurement and analysis precision, have the heat resistant requirements of measuring equipment lower, the reliable advantage of safe operation process simultaneously.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is front view of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, setting forth the utility model further below in conjunction with concrete diagram.
With reference to Fig. 1, Fig. 2, a kind of instrument for detecting dioxins concentration in flue gas, comprise and establish valvular stopple coupon 1, stopple coupon 1 connects sample storage tank 8, is provided with deionized water in sample storage tank 8, forms cavity after its liquid crown to back sample storage tank inside top surface certain distance.Extract high-temperature flue gas from stopple coupon 1 and be delivered in sample storage tank 8, high-temperature flue gas is lowered the temperature rapidly, avoiding it to synthesize dioxin again.Meanwhile, the dust-like objectionable impurities be convenient in flue gas is soluble in water.The bottom of sample storage tank 8 is provided with water inlet tube interface, rising pipe interface 6 and support 7, and water inlet tube interface is provided with valve 901, and rising pipe interface 6 is provided with valve 601.The top of sample storage tank 8 is provided with sample connection 5, which is provided with valve 501.Be provided with stopple coupon shell 2 outside stopple coupon 1, the tube wall that stopple coupon 1 stretches out in outside sample storage tank 8 envelopes by stopple coupon shell 2, and exposes the air intake opening of stopple coupon 1.Be provided with fill area between the outer wall of stopple coupon 1 and the inwall of stopple coupon shell 2, within it the heat-insulation layer 3 made of fill insulant material, and its thickness is 1.5 times ~ 3 times of the caliber of stopple coupon 1, preferably 2 times.Heat-insulation layer 3 preferably adopts heat-preservation cotton to make.In cavity above liquid level face in sample storage tank 8 and tank, the volume ratio of water body is 1/5 ~ 1/2, preferably 1/5 ~ 1/3.The inlet end of stopple coupon 1 stretches out in outside sample storage tank 8, outlet side is stretched into sample storage tank 8 and is immersed in tank under liquid level face, and its submergence is 50mm ~ 200mm.Preferably, 100mm ~ 150mm under liquid level face is stretched in the outlet side of stopple coupon.The caliber of stopple coupon 1 is 10mm ~ 30mm, preferred 20mm ~ 30mm.The volume of the internal chamber of sample storage tank 8 is greater than 30ml, and it has double-deck outer wall 4.Also liquid level detection device is provided with, for detecting liquid level face height in tank, so that the length making stopple coupon stretch in sample storage tank after fluid infusion in time remains in the intended scope of 50mm ~ 200mm in sample storage tank 8.
The utility model adopts stopple coupon 1 pair of high-temperature flue gas sample and guarantee the insulation of course of conveying, filters out the dust-like objectionable impurities in flue gas after adopting sample storage tank 8 to make flue gas and water mixing.Because dioxin is low aqueous solubility material, be separated with water body after therefore can being sucked out with dioxin wherein after water mixing, complete being separated dioxin and dust-like objectionable impurities.Sampled by sample connection 5 pairs of dioxin, by rising pipe interface 6, the water body being dissolved with dust-like objectionable impurities is sampled, achieve the macroanalysis for flue gas and mensuration, guarantee the integrality of testing process and the accuracy of testing result.
Carry out walkthrough operation before sampling Job Operations of the present utility model, it drains with the residual gas meant in stopple coupon and in each conveyance conduit, avoids its Interference Detection.Carry out equipment preparation before operation: first on sample connection 5, connect vacuum pumping pump, connect in the outlet side of vacuum pump and be used for carrying out detecting the analytical instrument analyzed to dioxin.And guarantee the valve closing on sample connection, water inlet tube interface, rising pipe interface and stopple coupon.When carrying out walkthrough operation, open the valve of stopple coupon and the valve of sample connection, start vacuum pump and vacuumize the cavity above liquid level face in sample storage tank, in this operation, analytical instrument does not detect the gas extracted; Continue for some time rear closedown vacuum pump, close stopple coupon valve and sample connection valve, then open the valve of water inlet tube interface and rising pipe interface, the water body in sample storage tank is replaced.Replace the valve of rear closedown water inlet tube interface and rising pipe interface, complete scheduled job.
When the utility model carries out sampling operation, operation steps is as follows: 1) guarantee that the end of bleeding of vacuum pump is connected sample connection with outlet side respectively by pipeline and to the analytical instrument that dioxin detects, guarantees that the valve of stopple coupon interface, water inlet tube interface, rising pipe interface and stopple coupon is in closed condition; 2) valve of water inlet tube interface is opened, deionized water is filled with in sample storage tank, and observes liquid level detection device to guarantee that liquid level face height arrives setting value, if this step has carried out walkthrough operation before sampling operation, then without the need to carrying out, only need to guarantee that liquid level face reaches setting value; 3) close the valve of water inlet tube interface, make sample storage tank be air-tight state; 4) valve of sample connection and the valve of stopple coupon is opened, then start vacuum pump to vacuumize cavity above sample storage tank liquid level face, the air intake opening of pressure official post stopple coupon produces suction and sucks in the deionized water in sample storage tank by the flue gas in flue, water-fast dioxin is inhaled into analytical instrument, is obtained the testing result of dioxin by analytical instrument; 5) close sample connection valve and stopple coupon valve, open the valve of rising pipe interface, discharge the deionized water containing dust-like objectionable impurities and carry out sample analysis, obtain the testing result of dust-like objectionable impurities; 6) in conjunction with the testing result of dioxin and the testing result of dust-like objectionable impurities, the macroanalysis result to harmful substances from flue gases in flue is obtained.
Foregoing shows and describes ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. one kind for detecting the instrument of dioxins concentration in flue gas, comprise one and be convenient to stretch in flue the stopple coupon extracting flue gas to be measured, it is characterized in that, described stopple coupon connects one for filtering dust material in flue gas and the sample storage tank making high-temperature flue gas lower the temperature rapidly, liquid level face above forms a cavity after holding a certain amount of deionized water in described sample storage tank;
The top of described sample storage tank is provided with a sample connection, and the vacuum pump of described sample connection connection one for vacuumizing the cavity above liquid level face in sample storage tank, described vacuum pump connects the analytical instrument being used for detecting dioxin.
2. a kind of instrument for detecting dioxins concentration in flue gas according to claim 1, it is characterized in that, described sample storage tank be provided with one outreach inlet channel after in sample storage tank, carry the water inlet tube interface of deionized water, described water inlet tube interface is arranged at the bottom of described sample storage tank.
3. a kind of instrument for detecting dioxins concentration in flue gas according to claim 2, is characterized in that, in described sample storage tank water body liquid level face above and below volumetric ratio be 1/5 ~ 1/2.
4. a kind of instrument for detecting dioxins concentration in flue gas according to claim 3, is characterized in that, the bottom of described sample storage tank be provided with one connect outlet conduit thereon after rising pipe interface that the water body in sample storage tank is externally exported;
Described stopple coupon interface, described water inlet tube interface, described rising pipe interface and described stopple coupon are equipped with valve.
5. a kind of instrument for detecting dioxins concentration in flue gas according to claim 4, is characterized in that, the inlet end of described stopple coupon stretches out in that described sample storage tank is outer, described sample storage tank is stretched in outlet side and to be immersed in tank below liquid level face;
Distance in the outlet side of described stopple coupon and described sample storage tank between liquid level face is 50mm ~ 200mm.
6. a kind of instrument for detecting dioxins concentration in flue gas according to claim 5, is characterized in that, is provided with one for detecting the liquid level detection device of liquid level face height in sample storage tank in described sample storage tank.
7. a kind of instrument for detecting dioxins concentration in flue gas according to any one of claim 1 to 6, is characterized in that, the caliber of described stopple coupon is 10mm ~ 30mm;
The volume of described sample storage tank is greater than 30ml.
8. a kind of instrument for detecting dioxins concentration in flue gas according to any one of claim 1 to 6, is characterized in that, described sample storage tank is provided with double-deck outer wall;
The bottom of described sample storage tank is provided with support, and described support adopts height-adjustable support.
9. a kind of instrument for detecting dioxins concentration in flue gas according to claim 8; it is characterized in that; the outside of described stopple coupon is provided with the stopple coupon housing for the protection of stopple coupon; described stopple coupon housing is coated on the tube wall that stopple coupon stretches out in outside sample storage tank, and exposes the inlet end opening of stopple coupon.
10. a kind of instrument for detecting dioxins concentration in flue gas according to claim 7, it is characterized in that, fill area is formed after keeping at a certain distance away between described stopple coupon inner walls and described stopple coupon outer wall, a heat-insulation layer is formed within it after fill insulant material, for eliminating the too fast defect of stopple coupon exposed parts heat interchange, maintain the temperature of this partial interior conveying gas;
The thickness of described heat-insulation layer is 1.5 times ~ 3 times of described stopple coupon caliber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520822044.2U CN205067466U (en) | 2015-10-22 | 2015-10-22 | A instrument for detecting dioxin content in flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520822044.2U CN205067466U (en) | 2015-10-22 | 2015-10-22 | A instrument for detecting dioxin content in flue gas |
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| Publication Number | Publication Date |
|---|---|
| CN205067466U true CN205067466U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520822044.2U Expired - Fee Related CN205067466U (en) | 2015-10-22 | 2015-10-22 | A instrument for detecting dioxin content in flue gas |
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| CN (1) | CN205067466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610412A (en) * | 2015-10-22 | 2017-05-03 | 吉天师能源科技(上海)有限公司 | Device used for detecting content of dioxin in flue gas |
-
2015
- 2015-10-22 CN CN201520822044.2U patent/CN205067466U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610412A (en) * | 2015-10-22 | 2017-05-03 | 吉天师能源科技(上海)有限公司 | Device used for detecting content of dioxin in flue gas |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 |