CN101957275B - Sampling probe - Google Patents
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- CN101957275B CN101957275B CN2010102700931A CN201010270093A CN101957275B CN 101957275 B CN101957275 B CN 101957275B CN 2010102700931 A CN2010102700931 A CN 2010102700931A CN 201010270093 A CN201010270093 A CN 201010270093A CN 101957275 B CN101957275 B CN 101957275B
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Abstract
The invention discloses a sampling probe which comprises a sample gas cleaning chamber, a filter and a sampling pipe, wherein the sample gas cleaning chamber is provided with a sampling pipe access mouth and a sample gas outlet; the filter is installed at the inlet end of the sample gas outlet and is located in the sample gas cleaning chamber; the sampling pipe is installed on the sampling pipe access mouth in the sample gas cleaning chamber and inserted in a rotary kiln tail smoke chamber, an air cooling jacket is installed on the sampling pipe, and the outer jacket face of one section of the air cooling jacket inserted into the rotary kiln tail smoke chamber is coated with a heat insulating layer capable of resisting high temperature more than 1100 DEG C. The invention solves the cooling problem of the sampling pipe by coating the sampling pipe with the heat insulating layer and combining air cooling, and cost is reduced without investing in building a water supply device. The invention can effectively clean particles in the sample gas cleaning chamber and the sampling pipe and blow the particles back to the kiln by arranging two modes of internal back blowing and external back blowing, and no new waste water and waste gas treatment equipment is used without pollute environment.
Description
Technical field
The present invention relates to the sampling probe that uses in the high-temperature flue gas analytic system.
Background technology
The manufacturing enterprise of cement industry all has the characteristics of high energy consumption, high pollution always because of the singularity of its production; Along with the pay attention to day by day of country to environmental protection and energy-conservation aspect; Energy consumption and pollutant emission newly-built to each or the reorganization and expansion cement mill now all proposed strict requirement; Energy consumption is high will firmly close down rectification with discharging enterprise not up to standard, and this is to the new opportunity of development of the high-temperature flue gas analytic system of China.The high-temperature flue gas analytic system is that the high-temperature gas composition of rotary cement kiln kiln tail smoke-box is analyzed, and reaches purpose energy-saving and cost-reducing and the pollutant qualified discharge thereby change working condition through gained data-guiding cement production enterprise.Cost consumption in the cement mill is heavy, and the ratio of the energy is maximum, and energy resource consumption will account for 50%～60% ratio in the cost of cement, and the ratio of raw material also only accounts for about 40%.Oil-firing kiln system with 1500 tons of grogs of a daily output is an example, if oxygen content exceeds 1 percentage point of optimum value, kiln system will consume 2400 liters of oil every day more, annual many losses: 2400 liters * 6 yuan/liter * 365 days=5,250,000 yuan.Thereby it is thus clear that if the gas componant that can accurately detect in the kiln discharge instructs production technology according to testing result, and the real economy of so the energy-saving and cost-reducing work of cement mill being brought is worth inestimable.
As everyone knows; The work condition environment of cement mill rotary kiln kiln tail smoke-box is quite abominable; The temperature here is up to 1100 ℃, and has a large amount of cement semi-mature materials to inject in rotary kiln from here that (cement mill with 5000 tons of daily outputs is an example, and the semi-mature material that inject in the kiln Caudad kiln every day is just up to 5000 tons; Per hour up to 208 tons); Make kiln tail smoke-box be in the state of high temperature, high dust all the time, carry out the online detection of continuous uninterrupted, just must have high-quality sampling probe to guarantee the gas of rotary kiln kiln tail smoke-box.Sampling probe requires to possess high temperature resistant, shock-resistant and high bending resistance and gets intensity; And the working environment of dust make sampling probe also must possess high performance automatic cleaning dust function (because of the probe working environment in dust excessive; As can not clear up sampling probe automatically; When appearance gas is extracted out, can attach the amounts of dust particle, these dust granules will soon be blocked thieff hatch, are that probe can't be sampled).
For sampling pipe is implemented cooling and dedusting, Chinese utility model patent Granted publication CN2150550Y disclosed " sampling probe that water-cooled, water washing device are arranged " is outside sampling pipe, to install water collar; At the sampling pipe center water washing device is installed; Water washing device is made up of feed pipe and hydro-peening head; Feed pipe causes water under high pressure on the hydro-peening head of probe leading portion; Gush out from the axial hole and the tangential hole of hydro-peening head, to hot flue gas cooling, dedusting and wash sampling pipe, to prevent that dust stops up sampling pipe in the flue gas.Though this sampling probe can on-line continuous be taken a sample, because it adopts water cooling, therefore need dispose the water source at the scene, also need purify simultaneously chilled water, operating cost is very high.
Summary of the invention
Technical matters to be solved by this invention is to provide the sampling probe that uses in a kind of high-temperature flue gas system, and this sampling probe utilizes the on-the-spot pressurized air in cement mill as cooling and flushing source of the gas, and operating cost is reduced significantly.
In order to realize the foregoing invention purpose, the technical scheme that the present invention adopted is:
Sampling probe comprises:
The same gas cleaning chamber, said appearance gas cleaning chamber is provided with sampling pipe access port and the outlet of appearance gas;
One is installed in going into end and being positioned at kind filtrator of gas cleaning chamber of kind gas outlet;
One is installed in the sampling pipe on the sampling pipe access port of said appearance gas cleaning chamber, and said sampling pipe inserts in the rotary kiln kiln tail smoke-box, it is characterized in that,
Has an air cooling jacket on the said sampling pipe; And in described air cooling jacket inserts rotary kiln kiln tail smoke-box, be coated with on one section the circumferential surface one deck can be anti-the thermofin of high temperature more than 1100 ℃, said air cooling jacket is positioned at outer one section of rotary kiln kiln tail smoke-box and is provided with the inlet, outlet pipe adapter.
Described air cooling jacket inserts in the rotary kiln kiln tail smoke-box one section circumferential surface and is provided with some anchor studs, and said anchor studs tightly is anchored at described air cooling jacket with said thermofin and inserts in the rotary kiln kiln tail smoke-box on one section the circumferential surface.
Said anchor studs is V font anchor studs or Y font anchor studs, and wherein V font anchor studs distributes along described air cooling jacket circumferential surface circumferential and axial, and Y font anchor studs is along the end face circle distribution of described air cooling jacket.
The thickness of said thermofin is 50-60mm.
Said thermofin is formed by coal powder injection pipe dedicated pouring material or the cast of resistive connection skin silit castable refractory.Can extend to the gas access end of sampling pipe for the cooling air that guarantees to be blown into the air cooling jacket; Between the outer tube wall of the interior jacket wall of said air cooling jacket and sampling pipe, be symmetrically arranged with division board; The length of said division board is less than the length of said sampling pipe and air cooling jacket; Be blown into the inlet end that cooling air in the air cooling jacket can flow to sampling pipe by the draft tube joint like this, turn back again to the escape pipe joint, thereby improved cooling effect.
Sampling pipe access port of the present invention position is positioned at the below of said filtrator; The appearance gas that gets into appearance gas cleaning chamber by sampling pipe like this gets in the process of filtrator has the process of climbing; In this climbs process; Dust in the appearance gas has a sedimentation, thereby has reduced the accumulation of dust to filter surfaces.
Owing to contain particles such as a large amount of dusts, cement raw material in the appearance gas; Must handle to remove the particle in the appearance gas it, guarantee that system can adopt clean appearance gas, simultaneously in these particles owing to contain a large amount of cement compositions; It is dirty under hot conditions, to be very easy to knot; Thereby this cement dirt is difficult to cleaning causes thieff hatch blocked, so must adopt effective way that particle is cleared up, guarantees to sample and carries out smoothly.Therefore to select filtering accuracy for use be the ceramic filter filter core of 1 μ m to filtrator of the present invention, and this ceramic filter filter core can intercept the outside at filter core fully with particle.
Too much in order to prevent the particle that adheres on the ceramic filter filter core; And have influence on gas production; The present invention connects one or two position-3-way solenoid valve through pipeline in the outlet of said appearance gas, a mouth of said two-bit triplet solenoid valve connects sampling pump, and another mouthful connects the compressed air gas source that pressure is 6kg.After a sampling period finishes; The two-bit triplet solenoid valve is switched to another mouthful; Cut-in pressure is the compressed air gas source of 6kg, and pressurized air is imported ceramic filter filter core inside, and at this moment pressurized air can will all hang attached to the particle on the ceramic filter filter core after the blowback from inside to outside; Particle under blowing off drops in kind gas cleaning chamber, and this process is interior blowback.
Certainly; After a sampling period finishes, have a large amount of particles in appearance gas cleaning chamber and the sampling pipe, if untimely cleaning; Will stop up sampling pipe; The present invention comprises that also an end inserts the recoil tube in the said appearance gas cleaning chamber for this reason, and the other end of said recoil tube connects the compressed air gas source that pressure is 6kg through a solenoid valve, said recoil tube and the coaxial setting of said sampling pipe.After the interior blowback process in a sampling period finished, opens solenoid valve was up to the pressurized air release suddenly of 6kg; Because recoil tube faces sampling pipe; Pressurized air can not produce any vapour lock, the particle under the airflow of high speed and high pressure can be blown off interior blowback and be trapped in other particle in the sampling pipe and all blow and get back in the cement kiln, thus keep the clean of sampling pipe and appearance gas cleaning chamber; This process is called outer blowback; After outer blowback finishes, next circulation of sampling beginning, so going round and beginning again the sampling pipe blocking problem can not occur to realize the sampling probe long-term work.
In order the particle in the appearance gas cleaning chamber to be blown out, the internal diameter of recoil tube of the present invention is greater than the internal diameter of sampling pipe.
Owing to adopted technical scheme as above; The present invention adopts sampling pipe to be coated with thermofin and air cools off the cooling problem that the means that combine have solved sampling pipe; Because pressurized air generally has in the manufacture of cement situ configuration, therefore need not reinvest and build the setting of supplying water, reduced cost.Because thermofin adopts resistive connection skin silit dedicated pouring material, can under the high temperature more than 1100 ℃, work for a long time, makes sampling pipe possess high temperature resistant, shock-resistant and high flexural strength.The present invention is through blowback in being provided with and outer blowback dual mode, can clear up the particle in kind gas cleaning chamber and the sampling pipe effectively and particle blown back in the kiln, so need not add new waste water and gas treatment facility again, the while environmentally safe.
Description of drawings
Fig. 1 is the structural representation of sampling probe of the present invention.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the structural representation of filter core back up pad 140 in the sampling probe of the present invention.
Fig. 4 is the A-A cut-open view of Fig. 3.
Fig. 5 is the structural representation of support bar in the sampling probe of the present invention.
Fig. 6 is the structural representation of web joint in the sampling probe of the present invention.
Fig. 7 is the A-A cut-open view of Fig. 6.
Fig. 8 is the structural representation of sampling pipe in the sampling probe of the present invention.
Fig. 9 is the structural representation of sampling probe air cooling jacket of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, sampling probe of the present invention comprises 200, recoil tubes 300 of 100, sampling pipes of an appearance gas cleaning chamber.Appearance gas cleaning chamber 100 is made up of web joint 110, separator tube 120, outside flange 130 and filter core back up pad 140; Web joint 110 and outside flange 130 are welded on the two ends of separator tube 120; Filter core back up pad 140 is installed on the outside flange 130 through securing member; Web joint 110 is sealed separator tube 120 two ends with filter core back up pad 140, makes separator tube 120 inner spaces form appearance gas cleaning chamber 100.Referring to Fig. 6 and Fig. 7, in order to improve sealing effectiveness between web joint 110 and the separator tube 120, offer an annular groove 111 in the one side of web joint 110, an end of separator tube 120 is inserted into welding again in this annular groove 111 earlier.
In conjunction with referring to Fig. 6 and Fig. 7, on web joint 110, offer a sampling pipe access port 112 and annular groove 113, an end of sampling pipe 200 inserts in the sampling pipe access port 112, and the appearance gas of sampling pipe 200 collections is cleared up with regard to getting into an appearance gas cleaning chamber 100 like this.On sampling pipe 200, be welded with an air cooling jacket 210, an end of air cooling jacket 210 is inserted in the annular groove 113, is tightly connected with web joint 110 again, and the other end is connected with the gas access end end seal of sampling pipe 200 through sampling pipe end socket 211.
For heat insulation; Guarantee that sampling pipe 200 possesses high temperature resistant, shock-resistant and high flexural strength, be coated with on one section circumferential surface in air cooling jacket 210 is inserted into rotary kiln kiln tail smoke-box and the sampling pipe end socket 211 one deck can be anti-the thermofin 230 of high temperature more than 1100 ℃.For thermofin 230 can be coated on air cooling jacket 210 and the sampling pipe end socket 211 tightly; One section circumferential surface upper edge circumferential and axial are provided with plurality of V font anchor studs 231 in air cooling jacket 210 inserts rotary kiln kiln tail smoke-box; And sampling pipe end socket 211 end face circumference are provided with some Y font anchor studs 232; Anchor studs 231 and 232 tightly is anchored at air cooling jacket 220 with thermofin 230 and inserts in the rotary kiln kiln tail smoke-boxes on one section the circumferential surface and sampling pipe end socket 211, thereby guarantees that sampling pipe 200 and air cooling jacket 210 do not receive the erosion of high temperature.The thickness of thermofin 230 is decided as required, is generally 50-60mm.Thermofin 230 is formed by the coal powder injection pipe dedicated pouring material or the cast of resistive connection skin silit castable refractory of 1600 ℃ of high temperature of ability.
In conjunction with referring to Fig. 2; Can extend to the gas access end of sampling pipe 200 for the cooling air that guarantees to be blown into air cooling jacket 210; Between the outer tube wall of the interior jacket wall of air cooling jacket 210 and sampling pipe 200, be symmetrically arranged with two division boards 240; The length of division board 240 is less than the length of sampling pipe 200 and air cooling jacket 210; Because two division boards 240 are separated into epicoele 241 and cavity of resorption 242 with cavity between the outer tube wall of the interior jacket wall of air cooling jacket 210 and sampling pipe 200, wherein epicoele 241 is communicated with draft tube joint 212, and cavity of resorption 242 is communicated with escape pipe joint 213., after the cooling air that is blown into epicoeles 241 in the air cooling jacket 210 by draft tube joint 212 like this can flow to sampling pipe end socket 211, the cavity of resorption 242 of flowing through of turning back again at last by escape pipe joint 213, thereby had improved cooling effect.
The mounting means of division board 240 is following: referring to Fig. 8 and Fig. 9; Symmetry offers the groove 201 of length less than sampling pipe 200 length on the tube wall of sampling pipe 200; Symmetry offers two open slots 214 that are provided with an end of inlet, outlet pipe adapter 212,213 to other end extension by air cooling jacket 210 on the jacket wall of air cooling jacket 210; During installation; At first division board 240 is inserted into welding in the groove 201 of sampling pipe 200, air cooling jacket 210 is being enclosed within 200 last times of sampling pipe then, division board 240 is inserted into weld in the open slot 214 on the air cooling jacket 210 to get final product.Here division board 240 also has an effect when assembling air cooling jacket 210, to play the effect of support air cooling jacket 210 exactly.
In conjunction with referring to Fig. 3 and Fig. 4; On filter core back up pad 140, offer equally 141 and recoil tubes of gas outlet and insert mouthfuls 142, be installed in kind gas as the ceramic filter filter core 150 of filtrator through support bar 151 and pad 152, gland 153, housing screw 154 and export on 141 and be positioned at a kind gas cleaning chamber 100.
Referring to Fig. 5; There is one in the support bar 151 with coaxial hole 151a and support bar 151 axis normal of support bar 151 and penetrate the bleeder vent 151b of support bar 151; Bleeder vent 151b and hole 151a connect; After appearance gas filtered through ceramic filter filter core 150, the bleeder vent 151b that sees through on the support bar 151 entered into the 151a in the support bar 151, is come out by appearance gas outlet 141 again.Ceramic filter filter core 150 is the ceramic filter filter core of 1 μ m for filtering accuracy, and this ceramic filter filter core can intercept the outside at filter core fully with particle.
The position of sampling pipe access port is positioned at the below of ceramic filter filter core 150; The appearance gas that gets into appearance gas cleaning chambers 100 by sampling pipe 200 like this gets in the process of ceramic filter filter core 150 has the process of climbing; In this climbs process; Dust in the appearance gas has a sedimentation, thereby has reduced the accumulation of dust to filter surfaces.
Owing to contain particles such as a large amount of dusts, cement raw material in the appearance gas; Must handle to remove the particle in the appearance gas it, guarantee that system can adopt clean appearance gas, simultaneously in these particles owing to contain a large amount of cement compositions; It is dirty under hot conditions, to be very easy to knot; Thereby this cement dirt is difficult to cleaning causes thieff hatch blocked, so must adopt effective way that particle is cleared up, guarantees to sample and carries out smoothly.Therefore the present invention connects one or two position-3-way solenoid valve 160 through pipeline in appearance gas outlet 141, and a mouth of two-bit triplet solenoid valve 160 connects sampling pump 170, and another mouthful connects the compressed air gas source that pressure is 6kg.After a sampling period finishes; Two-bit triplet solenoid valve 160 is switched to another mouthful; Cut-in pressure is the compressed air gas source of 6kg, and pressurized air is imported ceramic filter filter core 150 inside, and at this moment pressurized air can will all hang attached to the particle on the ceramic filter filter core 150 after the blowback from inside to outside; Particle under blowing off drops in kind gas cleaning chamber 100, and this process is interior blowback.
Certainly; After a sampling period finishes; Untimely cleaning has a large amount of particles in appearance gas cleaning chamber and the sampling pipe, if will be stopped up sampling pipe 200; One end of recoil tube 300 of the present invention is for this reason inserted in mouthful 142 insertion appearance gas cleaning chambers 100 by the recoil tube on the filter core back up pad 140; The other end of recoil tube 300 connects the compressed air gas source that pressure is 6kg through a solenoid valve 310, be inserted into recoil tube 300 and sampling pipe 200 coaxial settings in kind gas cleaning chamber 100, and the interior warp of recoil tube 300 is greater than the internal diameter of sampling pipe 200.After the interior blowback process in a sampling period finished, opens solenoid valve 310 was up to the pressurized air release suddenly of 6kg; Because recoil tube 300 faces sampling pipe 200; Pressurized air can not produce any vapour lock, the particle under the airflow of high speed and high pressure can be blown off interior blowback and be trapped in other particle in the sampling pipe 200 and all blow and get back in the cement kiln, thus keep the clean of sampling pipe and appearance gas cleaning chamber; This process is called outer blowback; After outer blowback finishes, next circulation of sampling beginning, so going round and beginning again the sampling pipe blocking problem can not occur to realize the sampling probe long-term work.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; What describe in the foregoing description and the instructions is principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the present invention that requires protection.The protection domain that the present invention requires is defined by appending claims and equivalent thereof.
Claims (4)
1. sampling probe comprises:
The same gas cleaning chamber, said appearance gas cleaning chamber is provided with sampling pipe access port and the outlet of appearance gas;
One is installed in going into end and being positioned at kind filtrator of gas cleaning chamber of kind gas outlet;
One is installed in the sampling pipe on the sampling pipe access port of said appearance gas cleaning chamber, and said sampling pipe inserts in the rotary kiln kiln tail smoke-box, it is characterized in that,
Has an air cooling jacket on the said sampling pipe; And in described air cooling jacket inserts rotary kiln kiln tail smoke-box, being coated with one deck thermofin on one section the circumferential surface, said air cooling jacket is positioned at outer one section of rotary kiln kiln tail smoke-box and is provided with the inlet, outlet pipe adapter;
One section circumferential surface upper edge circumferential and axial are provided with plurality of V font anchor studs in described air cooling jacket inserts rotary kiln kiln tail smoke-box; And sampling pipe end socket end face circumference is provided with some Y font anchor studs, and said V font anchor studs and Y font anchor studs tightly are anchored at described air cooling jacket with said thermofin and insert in the rotary kiln kiln tail smoke-box on one section the circumferential surface and sampling pipe end socket;
The thickness of said thermofin is 50-60mm; Said thermofin is formed by the coal powder injection pipe dedicated pouring material or the cast of resistive connection skin silit castable refractory of 1600 ℃ of high temperature of ability;
In the outlet of said appearance gas, connect one or two position-3-way solenoid valve through pipeline, a mouth of said two-bit triplet solenoid valve connects sampling pump, and another mouthful connects the compressed air gas source that pressure is 6kg;
This sampling probe comprises that also an end inserts the recoil tube in mouthful said appearance of the insertion gas cleaning chamber by the recoil tube on the filter core back up pad; The other end of said recoil tube connects the compressed air gas source that pressure is 6kg through a solenoid valve, is inserted into recoil tube and the coaxial setting of said sampling pipe in kind gas cleaning chamber; And the internal diameter of recoil tube is greater than the internal diameter of sampling pipe.
2. sampling probe as claimed in claim 1 is characterized in that, between the outer tube wall of the interior jacket wall of said air cooling jacket and sampling pipe, is symmetrically arranged with division board, and the length of said division board is less than the length of said sampling pipe and air cooling jacket.
3. sampling probe as claimed in claim 1 is characterized in that, said sampling pipe access port position is positioned at the below of said filtrator.
4. sampling probe as claimed in claim 1 is characterized in that, it is the ceramic filter filter core of 1 μ m that described filtrator is selected filtering accuracy for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102700931A CN101957275B (en) | 2010-08-31 | 2010-08-31 | Sampling probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102700931A CN101957275B (en) | 2010-08-31 | 2010-08-31 | Sampling probe |
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| CN101957275A CN101957275A (en) | 2011-01-26 |
| CN101957275B true CN101957275B (en) | 2012-07-04 |
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| CN2010102700931A Active CN101957275B (en) | 2010-08-31 | 2010-08-31 | Sampling probe |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507269B (en) * | 2011-10-29 | 2013-07-31 | 重庆川仪分析仪器有限公司 | Maintenance-free high-temperature gas sampling probe |
| CN102967491B (en) * | 2012-11-08 | 2015-07-29 | 上海市环境监测中心 | Particle sampling device and utilize this device to carry out the method for particle detection |
| CN103837378A (en) * | 2014-03-11 | 2014-06-04 | 南京康测自动化设备有限公司 | Flue gas denitrification sampling device as well as analysis system and method |
| CN103884821B (en) * | 2014-04-14 | 2015-10-21 | 周志国 | A kind of thermal power plant generating tail gas nitrogen oxide component measurement mechanism and measuring method thereof |
| CN107907218A (en) * | 2017-12-05 | 2018-04-13 | 南京佛利蒙特测控技术有限公司 | Radiation protection cooling system in a kind of stove for infrared measurement of temperature |
| CN107991148A (en) * | 2018-01-03 | 2018-05-04 | 南京益彩环境科技股份有限公司 | Foldable flue gas sampling device and flue system |
| CN108519248B (en) * | 2018-04-12 | 2022-05-17 | 福建省瑞榕环保科技有限责任公司 | Soil sampling device used near underground pipeline |
| CN114778805A (en) * | 2022-04-08 | 2022-07-22 | 上海宝英光电科技有限公司 | High-temperature sampling probe device capable of automatically preventing blockage and skinning |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201060122Y (en) * | 2007-05-31 | 2008-05-14 | 重庆特瑞尔分析仪器有限公司 | Thermal insulation dry method high-temperature sampling probe |
| CN101551306A (en) * | 2009-03-26 | 2009-10-07 | 北京雪迪龙自动控制系统有限公司 | A high-temperature sampling probe and high-temperature gas analysis system |
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2010
- 2010-08-31 CN CN2010102700931A patent/CN101957275B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201060122Y (en) * | 2007-05-31 | 2008-05-14 | 重庆特瑞尔分析仪器有限公司 | Thermal insulation dry method high-temperature sampling probe |
| CN101551306A (en) * | 2009-03-26 | 2009-10-07 | 北京雪迪龙自动控制系统有限公司 | A high-temperature sampling probe and high-temperature gas analysis system |
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| CN101957275A (en) | 2011-01-26 |
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