CN203385599U - Gas analysis system for high-dust and high-water-content sample gas environment - Google Patents
Gas analysis system for high-dust and high-water-content sample gas environment Download PDFInfo
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- CN203385599U CN203385599U CN201320490673.0U CN201320490673U CN203385599U CN 203385599 U CN203385599 U CN 203385599U CN 201320490673 U CN201320490673 U CN 201320490673U CN 203385599 U CN203385599 U CN 203385599U
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Abstract
The utility model provides a gas analysis system for a high-dust and high-water-content sample gas environment. The gas analysis system comprises a heat traced filter type sample probe, wherein a sample gas outlet of the heat traced filter type sample probe is connected with a sample gas inlet of a heat traced sampling backflush valve block box, a sample gas outlet of the heat traced sampling backflush valve block box is connected with a first gas inlet of a bipolar refrigeration and condensation dewaterer through a primary buffer dewaterer, a first gas outlet and a second gas inlet of the bipolar refrigeration and condensation dewaterer are connected through a sucking pump, a second gas outlet of the bipolar refrigeration and condensation dewaterer is connected with a sample gas inlet of a gas analyzer through a fine filter, a backflush inlet of the heat traced sampling backflush valve block box is connected with a gas outlet of a compressed air supplying device, and the heat traced sampling backflush valve block box, the sucking pump and a controller are connected. The gas analysis system is capable of reliably running under a high-dust and high-water-content sample gas environment, and is long in service life because the heat traced filter type sample probe can not be blocked and an instrument in the gas analyzer can not cause the problem of water damage.
Description
Technical field
The utility model relates to a kind of gas analysis system, specifically, relates to a kind ofly under high dust and high-moisture sample compression ring border, use, and has stable and reliable operation, is difficult for occurring the gas analysis system of the characteristics such as sampling probe obstruction, long service life.
Background technology
Some technological process will be carried out under the sample compression ring border of high dust and high-moisture, in the face of this special operation condition, large multiple-project has adopted following gas analysis system to be processed and analyze sample gas, this gas analysis system comprises gas pretreatment system, gas analyzer, and gas pretreatment system wherein comprises companion's heat filtering type sampling probe, blowback sweeping device, condensation dehydration plant, filtration unit.Specifically, companion's heat filtering type sampling probe sampling filtering, sample gas enters gas analyzer after via condensation dehydration plant, filtration unit, carry out the constituent analysis of sample gas by gas analyzer, when the needs blowback is swept, the blowback sweeping device adopts the cold conditions blowback mode of sweeping to carry out blowback to companion's heat filtering type sampling probe and sweeps.
Although this gas analysis system can be realized the sampling of sample gas, the function of processing and analyzing preferably,, there is the defect of following several respects in it:
One, companion's heat filtering type sampling probe condition of high temperature in 135 ℃ of left and right when normal sampling, and, when companion's heat filtering type sampling probe need to purge, the pressurized air that the blowback sweeping device provides, in cold conditions (20 ℃ of left and right), can make to accompany heat filtering type sampling probe to be lowered the temperature rapidly like this, therefore, under the sample compression ring border of high-moisture, water can be met the condensation knot at the filtrator barrel of companion's heat filtering type sampling probe, after mix dust, very easily lump and cause obstruction, virtually having increased maintenance cost.
They are two years old, sample gas only carries out the condensation processed in the condensation dehydration plant, therefore, under the sample compression ring border of high-moisture, this single compressed mechanism cold mode of dewatering of this gas analysis system can not accomplish to dewater fully, water can be built up in some instrument in gas analyzer, thereby reduces accuracy of instrument and shorten its serviceable life.
The utility model content
The purpose of this utility model is to provide a kind of high dust, high-moisture sample compression ring border gas analysis system, this gas analysis system can reliable and stable operation under high dust and high-moisture sample compression ring border, companion's heat filtering type sampling probe can not block, damage by water can not occur and hinder problem in the instrument in gas analyzer, maintenance cost is low, long service life.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of high dust, high-moisture sample compression ring border gas analysis system, it is characterized in that: it comprises companion's heat filtering type sampling probe, companion's heat sampling blowback valve block, elementary buffering hydroextractor, bipolar refrigeration condensation hydroextractor, gas analyzer, wherein: the sample gas outlet of this companion's heat filtering type sampling probe is connected with the sample gas entrance of this companion's heat sampling blowback valve block, the sample gas outlet of this companion's heat sampling blowback valve block is connected with the first air intake opening of this bipolar refrigeration condensation hydroextractor via this elementary buffering hydroextractor, between the first gas outlet of this bipolar refrigeration condensation hydroextractor and the second air intake opening, via aspiration pump, be connected, the second gas outlet of this bipolar refrigeration condensation hydroextractor is connected with the sample gas entrance of this gas analyzer via precision filter, the blowback entrance of this companion's heat sampling blowback valve block is connected with the gas outlet of pressurized air feedway, this companion's heat sampling blowback valve block, the Electromagnetic Control port of this aspiration pump is connected with the corresponding controling end mouth of controller respectively.
The outlet of the sample gas of described companion's heat filtering type sampling probe and described companion's heat sample between the sample gas entrance of blowback valve block and are connected via heat tracing pipe, and the power port of this heat tracing pipe is connected with the 220V power supply.
Described companion's heat sampling back-flushing valve group case comprises casing, be provided with the first gas control ball valve in this casing, the second gas control ball valve, heating arrangement, wherein: the air intake opening of this first gas control ball valve, the gas outlet of this second gas control ball valve all is connected with the sample gas entrance of this casing, the gas outlet of this first gas control ball valve is connected with the outlet of the sample gas of this casing, the air intake opening of this second gas control ball valve is connected with the blowback entrance of this casing, this the first gas control ball valve, the Electromagnetic Control port of this second gas control ball valve is connected with the corresponding controling end mouth of described controller respectively, this the first gas control ball valve, the gas transmission port of this second gas control ball valve all is connected with the gas outlet of compressed gas storage tank, the air intake opening of this compressed gas storage tank is connected with the gas outlet of described pressurized air feedway, the power port of this heating arrangement is connected with the 220V power supply.Described the first gas control ball valve is normal open gas control ball valve, and described the second gas control ball valve is normally closed gas control ball valve.
The freeing port of described elementary buffering hydroextractor is connected with two-port valve, and the Electromagnetic Control port of this two-port valve is connected with the corresponding controling end mouth of described controller.
Be connected with T-valve between the first air intake opening of the gas outlet of described elementary buffering hydroextractor and described bipolar refrigeration condensation hydroextractor, the import of this T-valve is connected with the gas outlet of described elementary buffering hydroextractor, the first outlet of this T-valve is connected with the first air intake opening of described bipolar refrigeration condensation hydroextractor, the second outlet of this T-valve is connected with the gas outlet of described pressurized air feedway via the pressure regulation filtrator, and the Electromagnetic Control port of this T-valve is connected with the corresponding controling end mouth of described controller.
The gas outlet of described aspiration pump is connected with gas exhaust duct.Be connected with the first flow meter on described gas exhaust duct.
Be connected with multiport valve between the sample gas entrance of the gas outlet of described precision filter and described gas analyzer, the outlet of this multiport valve is connected with the sample gas entrance of described gas analyzer, and the gas outlet of the gas outlet of described precision filter, zero gas storage tank, the gas outlet of range gas storage tank are connected with the respective inlets of this multiport valve respectively.Be connected with the second flowmeter between the sample gas entrance of described gas analyzer and the outlet of described multiport valve.
The utility model has the advantages that:
The utility model can reliable and stable operation under high dust and high-moisture sample compression ring border, and companion's heat filtering type sampling probe can not block, and in gas analyzer, instrument damage by water can not occur hinders problem, and maintenance cost is low, long service life.
The accompanying drawing explanation
Fig. 1 is composition schematic diagram of the present utility model.
Embodiment
As Fig. 1, the utility model provides a kind of high dust that can be applicable to, gas analysis system under high-moisture sample compression ring border, this gas analysis system comprises companion's heat filtering type sampling probe 10, companion's heat sampling blowback valve block 20, elementary buffering hydroextractor 50, bipolar refrigeration condensation hydroextractor 60, gas analyzer 90, wherein: the sample gas outlet of this companion's heat filtering type sampling probe 10 is connected with the sample gas entrance of this companion's heat sampling blowback valve block 20, the sample gas outlet of this companion's heat sampling blowback valve block 20 is connected with the first air intake opening of this bipolar refrigeration condensation hydroextractor 60 via this elementary buffering hydroextractor 50, between the first gas outlet of this bipolar refrigeration condensation hydroextractor 60 and the second air intake opening, via aspiration pump 70, be connected, the second gas outlet of this bipolar refrigeration condensation hydroextractor 60 is connected with the sample gas entrance of this gas analyzer 90 via precision filter 80, the blowback entrance of this companion's heat sampling blowback valve block 20 is connected with the gas outlet of pressurized air feedway 30, the Electromagnetic Control port of this companion's heat sampling blowback valve block 20 and this aspiration pump 70 is connected with the corresponding controling end mouth of controller (not shown) respectively.
As Fig. 1, the sample gas outlet of companion's heat filtering type sampling probe 10 and companion's heat sample between the sample gas entrance of blowback valve block 20 and are connected via heat tracing pipe 11, the power port of this heat tracing pipe 11 is connected with 220V power supply (not shown), the power port of companion's heat filtering type sampling probe 10 equally also is connected with the 220V power supply, the 220V power supply is to the heater strip power supply in companion's heat filtering type sampling probe 10 and heat tracing pipe 11, the heater strip heating, make to accompany the temperature of heat filtering type sampling probe 10 inside, heat tracing pipe 11 inside all to remain on 135 ℃ of left and right.
As Fig. 1, companion's heat sampling blowback valve block 20 comprises casing, be provided with the first gas control ball valve 21 in this casing, the second gas control ball valve 22, heating arrangement 23, wherein: the air intake opening of this first gas control ball valve 21, the gas outlet of this second gas control ball valve 22 all is connected with the sample gas entrance of this casing, realize the air intake opening of this first gas control ball valve 21, the gas outlet of this second gas control ball valve 22 all is connected with the sample gas outlet of this companion's heat filtering type sampling probe 10 via heat tracing pipe 11, the gas outlet of this first gas control ball valve 21 is connected with the outlet of the sample gas of this casing, the gas outlet of realizing this first gas control ball valve 21 is connected with the air intake opening of this elementary buffering hydroextractor 50, the air intake opening of this second gas control ball valve 22 is connected with the blowback entrance of this casing, the air intake opening of realizing this second gas control ball valve 22 is connected with the gas outlet of this pressurized air feedway 30, this the first gas control ball valve 21, the Electromagnetic Control port of this second gas control ball valve 22 is connected with the corresponding controling end mouth of controller respectively, this the first gas control ball valve 21, the gas transmission port of this second gas control ball valve 22 all is connected with the gas outlet of compressed gas storage tank 40, the air intake opening of this compressed gas storage tank 40 is connected with the gas outlet of pressurized air feedway 30, the power port of this heating arrangement 23 is connected with the 220V power supply, this 220V power supply is to heating arrangement 23 power supplies, heating arrangement 23 makes the temperature of box house remain on 135 ℃ of left and right.In actual design, the first gas control ball valve 21 is chosen as normal open gas control ball valve, and the second gas control ball valve 22 is chosen as normally closed gas control ball valve.Certainly, the inside formation of companion's heat sampling blowback valve block 20 is not limited to above-mentioned, also other composition form can be arranged.
As Fig. 1, the freeing port of elementary buffering hydroextractor 50 can be connected with two-port valve 53, and the Electromagnetic Control port of this two-port valve 53 is connected with the corresponding controling end mouth of controller.Be connected with T-valve 51 between the first air intake opening of the gas outlet of elementary buffering hydroextractor 50 and bipolar refrigeration condensation hydroextractor 60, the import of this T-valve 51 is connected with the gas outlet of elementary buffering hydroextractor 50, the first outlet of this T-valve 51 is connected with the first air intake opening of bipolar refrigeration condensation hydroextractor 60, the second outlet of this T-valve 51 is connected with the gas outlet of pressurized air feedway 30 via pressure regulation filtrator 52, and the Electromagnetic Control port of this T-valve 51 is connected with the corresponding controling end mouth of controller.
As Fig. 1, the gas outlet of aspiration pump 70 is connected with gas exhaust duct 71.Can be connected with first flow meter 72 on gas exhaust duct 71.
In actual design, bipolar refrigeration condensation hydroextractor 60 also available one pole refrigeration condensation hydroextractor substitutes, aspiration pump 70 is connected on the air intake of one pole refrigeration condensation hydroextractor, equally, the gas outlet of aspiration pump 70 also can be connected with gas exhaust duct 71, is connected with first flow meter 72 on gas exhaust duct 71, but it should be noted that, with bipolar refrigeration condensation hydroextractor 60, compare, effect when one pole refrigeration condensation hydroextractor uses under high dust, high-moisture sample compression ring border is poor.
As Fig. 1, can be connected with multiport valve 91 between the sample gas entrance of the gas outlet of precision filter 80 and gas analyzer 90, this multiport valve 91 has an outlet and a plurality of import, the outlet of this multiport valve 91 is connected with the sample gas entrance of gas analyzer 90, and the gas outlet of the gas outlet of precision filter 80, zero gas storage tank 92, the gas outlet of range gas storage tank 93 are connected with the respective inlets of this multiport valve 91 respectively.This multiport valve 91 for example is chosen as five-way valve, can be automatically controlledly or manual, if automatically controlled, the Electromagnetic Control port of this multiport valve 91 is connected with the corresponding controling end mouth of controller.As Fig. 1, between the sample gas entrance of gas analyzer 90 and the outlet of multiport valve 91, can be connected with the second flowmeter 94.
In actual design, controller is chosen as PLC controller etc.
In the utility model, companion's heat filtering type sampling probe 10, heat tracing pipe 11, pressurized air feedway 30, precision filter 80, bipolar refrigeration condensation hydroextractor 60, elementary buffering hydroextractor 50, pressure regulation filtrator 52, gas analyzer 90 etc. are the product of knowing of this area, first, second gas control ball valve 21,22 is a kind of gas control ball valve, gas control ball valve, two-port valve 53, T-valve 51, multiport valve 91 etc. are the product of knowing of this area, therefore their concrete structure does not here describe in detail.
The course of work of the present utility model is:
By the power supply of 220V power supply, make to accompany the internal temperature of heat filtering type sampling probe 10, heat tracing pipe 11, companion's heat sampling blowback valve block 20 to remain at the high temperature of 135 ℃ of left and right, pressurized air feedway 30 is to compressed gas storage tank 40 air feed.
During the sampling operation, control the first gas control ball valve 21 in open mode, control the second gas control ball valve 22, two-port valve 53 in closed condition, the import of controlling T-valve 51 is communicated with the first outlet, and the outlet of controlling multiport valve 91 is communicated with the import that is connected with precision filter 80.Start aspiration pump 70, sample gas in flue 100 gathers via companion's heat filtering type sampling probe 10, be heated to 135 ℃ of left and right in companion's heat filtering type sampling probe 10, moisture in sample gas keeps with gaseous state, then via the filtrator in companion's heat filtering type sampling probe 10, the dust in sample gas is filtered in enormous quantities, sample gas after filtration is sent into companion's heat sampling blowback valve block 20 via heat tracing pipe 11, send into elementary buffering hydroextractor 50 via the first gas control ball valve 21 and carry out elementary dewatering, then send into bipolar refrigeration condensation hydroextractor 60 and carry out condensation dehydration again, wherein, under the power of aspiration pump 70 drives, partially aqueous sample gas is discharged via gas exhaust duct 71, with the high workload efficiency (moisture is by the freeing port Self-discharged of bipolar refrigeration condensation hydroextractor 60) of guaranteeing second hydroextractor in bipolar refrigeration condensation hydroextractor 60, then, the sample gas of sending from bipolar refrigeration condensation hydroextractor 60 carries out sending into gas analyzer 90 the dust fine filtering via precision filter 80, by gas analyzer 90, undertaken from the outlet of sample gas, discharging after the constituent analysis of sample gas.
While needing blowback to sweep operation, control the second gas control ball valve 22 in open mode, control the first gas control ball valve 21 in closed condition.The pressurized air that pressurized air feedway 30 is outwards sent is heated in the process by the second gas control ball valve 22, send into companion's heat filtering type sampling probe 10 after then being incubated by post bake via heat tracing pipe 11, with the pressurized air in 135 ℃ of left and right high temperature, blowback is carried out in the sample gas entry position of companion's heat filtering type sampling probe 10 and sweep operation.
When operation is swept in blowback, can carry out draining, control two-port valve 53 in open mode, the import of controlling T-valve 51 is communicated with the second outlet, so, the pressurized air that pressurized air feedway 30 is outwards sent via 52 pressure regulation of pressure regulation filtrator after, send into elementary buffering hydroextractor 50 via T-valve 51, utilize the elementary buffering hydroextractor 50 that the pressure of sweep gas acquires a certain degree water cut to carry out draining.
When needs are calibrated, control the first gas control ball valve 21, the second gas control ball valve 22 in closed condition, the outlet of controlling multiport valve 91 is communicated with the import that is connected with zero gas storage tank 92 or range gas storage tank 93, so, zero gas or range gas enter gas analyzer 90, to demarcate accordingly operation.
The utility model has the advantages that:
1, the utility model is taked sampling, omnidistance companion's hot mode is swept in blowback, accompany heat filtering type sampling probe 10, heat tracing pipe 11, the internal temperature of companion's heat sampling blowback valve block 20 all remains on 135 ℃ of left and right, therefore, sampling, blowback is swept operation and is all at high temperature carried out, effectively avoided the rapid cooling of companion's heat filtering type sampling probe 10 when operation is swept in blowback, got rid of the possibility that the dust in the filtrator of accompanying heat filtering type sampling probe 10 contacts with aqueous water, make it all the time in drying regime, strengthened the blowback effect, thereby reduced the maintenance cost that companion's heat filtering type sampling probe 10 produces because of obstruction, solved the problem that existing gas analysis system accompanies heat filtering type sampling probe easily to block under the sample compression ring border of high-moisture.
2, the utility model had increased elementary buffering hydroextractor 50 before bipolar refrigeration condensation hydroextractor 60, due to after sample gas enters elementary buffering hydroextractor 50, volume and temperature change fast, hydrone in sample gas is liquefaction rapidly, at the bottom of condensing in the tank of elementary buffering hydroextractor 50, and the timing drainage in conjunction with elementary buffering hydroextractor 50, effectively removed the fractional saturation moisture in sample gas, carrying out essence via bipolar refrigeration condensation hydroextractor 60 again dewaters, thereby making gas analyzer 90 interior instrument no longer include aqueous water separates out, efficiently solve existing gas analysis system under the sample compression ring border of high-moisture in gas analyzer instrument generation water build up and cause instrument damage by water wound, reduce accuracy of instrument, the problem of reduction of service life.
The above is preferred embodiment of the present utility model and the know-why used thereof; for a person skilled in the art; in the situation that do not deviate from spirit and scope of the present utility model; the apparent changes such as any equivalent transformation based on the technical solutions of the utility model basis, simple replacement, within all belonging to the utility model protection domain.
Claims (10)
1. a high dust, high-moisture sample compression ring border gas analysis system, it is characterized in that: it comprises companion's heat filtering type sampling probe, companion's heat sampling blowback valve block, elementary buffering hydroextractor, bipolar refrigeration condensation hydroextractor, gas analyzer, wherein: the sample gas outlet of this companion's heat filtering type sampling probe is connected with the sample gas entrance of this companion's heat sampling blowback valve block, the sample gas outlet of this companion's heat sampling blowback valve block is connected with the first air intake opening of this bipolar refrigeration condensation hydroextractor via this elementary buffering hydroextractor, between the first gas outlet of this bipolar refrigeration condensation hydroextractor and the second air intake opening, via aspiration pump, be connected, the second gas outlet of this bipolar refrigeration condensation hydroextractor is connected with the sample gas entrance of this gas analyzer via precision filter, the blowback entrance of this companion's heat sampling blowback valve block is connected with the gas outlet of pressurized air feedway, this companion's heat sampling blowback valve block, the Electromagnetic Control port of this aspiration pump is connected with the corresponding controling end mouth of controller respectively.
2. gas analysis system as claimed in claim 1 is characterized in that:
The outlet of the sample gas of described companion's heat filtering type sampling probe and described companion's heat sample between the sample gas entrance of blowback valve block and are connected via heat tracing pipe, and the power port of this heat tracing pipe is connected with the 220V power supply.
3. gas analysis system as claimed in claim 1 or 2 is characterized in that:
Described companion's heat sampling back-flushing valve group case comprises casing, be provided with the first gas control ball valve in this casing, the second gas control ball valve, heating arrangement, wherein: the air intake opening of this first gas control ball valve, the gas outlet of this second gas control ball valve all is connected with the sample gas entrance of this casing, the gas outlet of this first gas control ball valve is connected with the outlet of the sample gas of this casing, the air intake opening of this second gas control ball valve is connected with the blowback entrance of this casing, this the first gas control ball valve, the Electromagnetic Control port of this second gas control ball valve is connected with the corresponding controling end mouth of described controller respectively, this the first gas control ball valve, the gas transmission port of this second gas control ball valve all is connected with the gas outlet of compressed gas storage tank, the air intake opening of this compressed gas storage tank is connected with the gas outlet of described pressurized air feedway, the power port of this heating arrangement is connected with the 220V power supply.
4. gas analysis system as claimed in claim 3 is characterized in that:
Described the first gas control ball valve is normal open gas control ball valve, and described the second gas control ball valve is normally closed gas control ball valve.
5. gas analysis system as claimed in claim 1 is characterized in that:
The freeing port of described elementary buffering hydroextractor is connected with two-port valve, and the Electromagnetic Control port of this two-port valve is connected with the corresponding controling end mouth of described controller.
6. gas analysis system as claimed in claim 5 is characterized in that:
Be connected with T-valve between the first air intake opening of the gas outlet of described elementary buffering hydroextractor and described bipolar refrigeration condensation hydroextractor, the import of this T-valve is connected with the gas outlet of described elementary buffering hydroextractor, the first outlet of this T-valve is connected with the first air intake opening of described bipolar refrigeration condensation hydroextractor, the second outlet of this T-valve is connected with the gas outlet of described pressurized air feedway via the pressure regulation filtrator, and the Electromagnetic Control port of this T-valve is connected with the corresponding controling end mouth of described controller.
7. gas analysis system as claimed in claim 1 is characterized in that:
The gas outlet of described aspiration pump is connected with gas exhaust duct.
8. gas analysis system as claimed in claim 7 is characterized in that:
Be connected with the first flow meter on described gas exhaust duct.
9. gas analysis system as claimed in claim 1 is characterized in that:
Be connected with multiport valve between the sample gas entrance of the gas outlet of described precision filter and described gas analyzer, the outlet of this multiport valve is connected with the sample gas entrance of described gas analyzer, and the gas outlet of the gas outlet of described precision filter, zero gas storage tank, the gas outlet of range gas storage tank are connected with the respective inlets of this multiport valve respectively.
10. gas analysis system as claimed in claim 9 is characterized in that:
Be connected with the second flowmeter between the sample gas entrance of described gas analyzer and the outlet of described multiport valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490673.0U CN203385599U (en) | 2013-08-12 | 2013-08-12 | Gas analysis system for high-dust and high-water-content sample gas environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490673.0U CN203385599U (en) | 2013-08-12 | 2013-08-12 | Gas analysis system for high-dust and high-water-content sample gas environment |
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| CN203385599U true CN203385599U (en) | 2014-01-08 |
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| CN201320490673.0U Expired - Lifetime CN203385599U (en) | 2013-08-12 | 2013-08-12 | Gas analysis system for high-dust and high-water-content sample gas environment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729890A (en) * | 2015-03-24 | 2015-06-24 | 南京埃森环境技术有限公司 | PM2.5 (Particulate Matter 2.5) source analyzing and sampling device based on flow feedback control |
| CN107179220A (en) * | 2017-06-06 | 2017-09-19 | 苏州西热节能环保技术有限公司 | A kind of multistage filtering continuous sampling system and method for gas pollutant |
| CN108872480A (en) * | 2018-06-12 | 2018-11-23 | 北京首仪华强电子设备有限公司 | The device that gas is analyzed in a kind of pair of high-sulfur atmosphere |
| CN109550582A (en) * | 2018-12-31 | 2019-04-02 | 光力科技股份有限公司 | A kind of gas controlling device and a kind of Mill Systems |
| CN110044676A (en) * | 2019-04-24 | 2019-07-23 | 上海汉克威自动化科技有限公司 | One kind being used for acrylonitrile installation oxygen analyzer sample gas pretreatment system and method |
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2013
- 2013-08-12 CN CN201320490673.0U patent/CN203385599U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729890A (en) * | 2015-03-24 | 2015-06-24 | 南京埃森环境技术有限公司 | PM2.5 (Particulate Matter 2.5) source analyzing and sampling device based on flow feedback control |
| CN104729890B (en) * | 2015-03-24 | 2017-12-05 | 南京埃森环境技术股份有限公司 | A kind of PM2.5 source resolution sampling apparatuses based on feedback flow control |
| CN107179220A (en) * | 2017-06-06 | 2017-09-19 | 苏州西热节能环保技术有限公司 | A kind of multistage filtering continuous sampling system and method for gas pollutant |
| CN108872480A (en) * | 2018-06-12 | 2018-11-23 | 北京首仪华强电子设备有限公司 | The device that gas is analyzed in a kind of pair of high-sulfur atmosphere |
| CN109550582A (en) * | 2018-12-31 | 2019-04-02 | 光力科技股份有限公司 | A kind of gas controlling device and a kind of Mill Systems |
| CN109550582B (en) * | 2018-12-31 | 2023-10-10 | 光力科技股份有限公司 | Gas monitoring device and coal mill system |
| CN110044676A (en) * | 2019-04-24 | 2019-07-23 | 上海汉克威自动化科技有限公司 | One kind being used for acrylonitrile installation oxygen analyzer sample gas pretreatment system and method |
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| CX01 | Expiry of patent term |
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| CX01 | Expiry of patent term |