CN205067455U - Nitrogen element morphological analysis monitoring devices - Google Patents
Nitrogen element morphological analysis monitoring devices Download PDFInfo
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- CN205067455U CN205067455U CN201520797105.4U CN201520797105U CN205067455U CN 205067455 U CN205067455 U CN 205067455U CN 201520797105 U CN201520797105 U CN 201520797105U CN 205067455 U CN205067455 U CN 205067455U
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Abstract
The utility model provides a nitrogen element morphological analysis monitoring devices, include: an aspiration pump for following the flue gas sampling rifle of sampling point extraction flue gas, be arranged in with total nitrogen oxide of flue gas all turn into nitric oxide NO the molybdenum converter, be arranged in collecting flue gas liquid drop and solid particles the collector, be arranged in surveing flue gas NO content the flue gas tester and for flue gas flow in the whole device provides power. The utility model discloses but the live synchronization carries out liquid drop and solid particles's categorised collection and NO's survey in the flue gas, has quick, convenient characteristics, the liquid drop and the solid particles that collect can be used to the analysis of further survey to obtain the concentration level and the distribution situation data of the nitrogen element of different existence forms.
Description
Technical field:
The utility model relates to the nitrogen element morphology monitoring field in Thermal Power Generation Industry stationary pollution source flue gas, particularly relates to a kind of nitrogen Elemental Speciation Analysis monitoring device that can carry out field monitoring or categorised collection to the distribution situation of different shape nitrogen element in coal steam-electric plant smoke and concentration.
Background technology:
The emphasis that oxides of nitrogen reduces discharging as China's current contamination, its emission control more and more comes into one's own.According to the rules; coal-fired plant flue gas could to airborne release after having to pass through the respective handling such as denitration, desulfurization; but; after current most of coal-burning power plants of China carry out the process such as denitration desulfurization to flue gas; the water capacity of flue gas is general higher; wherein still there is a certain amount of nitrogenous fine particle or drop, and these nitrogenous tiny salt particles or drop are discharged into after in air and can form secondary pollutant, cause PM2.5 to pollute and the extreme weather phenomenon such as haze.Monitoring method at present for stationary pollution source oxides of nitrogen mainly contains: hydrochloride naphthodiamide spectrophotometric method (HJ/T43-1999), fixed point position electrolytic process (HJ693-2014) and non-dispersion infrared absorption process (HJ692-2014), the defect of 3 kinds of methods is only to measure for the oxides of nitrogen of gaseous state, and the nitrogen contribution margin in solid granulates in gas and drop is not taken into account, be unfavorable for the distribution situation of nitrogen element in flue gas and comprehensive, the accurate evaluation of concentration.
Summary of the invention:
For the problems referred to above existed in current monitoring method, the purpose of this utility model is to provide a kind of nitrogen Elemental Speciation Analysis monitoring device, categorised collection and detection can be carried out to the nitrogen substance of different shape in coal steam-electric plant smoke, thus obtain concentration level and the distribution situation data of the nitrogen element of different existence form.
The technical solution of the utility model is as follows:
Described nitrogen Elemental Speciation Analysis monitoring device comprises: for extract from sampled point flue gas gas sampling gun, for the total nitrogen oxide in flue gas is all converted into nitrogen monoxide (NO) molybdenum converter, for condensation process flue gas and carry out drop and solid granulates categorised collection collector, for measuring the smoke detecting instrument of NO content in flue gas and providing the aspiration pump of power for flow of flue gas in whole device.Described collector comprises for the low temperature bath of holding low-temperature liquid medium, the surge flask A collected for flue gas condensing and drop and surge flask B and for the absorption bottle A that collects solid granulates in flue gas and absorption bottle B, surge flask A, surge flask B, absorption bottle A and absorption bottle B are airtight, and are communicated with by conduit A between surge flask A with surge flask B, are communicated with between surge flask B with absorption bottle A by conduit B, are communicated with by conduit C between absorption bottle A with absorption bottle B; The bottleneck of surge flask A is also provided with draft tube, and it is inner that surge flask A is stretched in draft tube one end, and the other end connects the gas outlet of described molybdenum converter, and the air intake opening of described molybdenum converter is communicated with the gas outlet of described gas sampling gun; The bottleneck of described absorption bottle B is also provided with gas outlet, and one end that described gas outlet is positioned at absorption bottle B outside is communicated with described smoke detecting instrument and aspiration pump by branch air path simultaneously.
When device is in running order, distilled water is marked with in described absorption bottle A and absorption bottle B, one end that described conduit B is communicated with absorption bottle A to be stretched in bottle below distilled water liquid level, one end that described conduit C is communicated with absorption bottle A is positioned at more than bottle distilled water liquid level, the one end being communicated with absorption bottle B to be stretched in bottle below distilled water liquid level, one end that described gas outlet is communicated with absorption bottle B is positioned at more than bottle distilled water liquid level, be marked with cryogenic liquid medium in described low temperature bath, described surge flask A, surge flask B, absorption bottle A and absorption bottle B all immerse in cryogenic liquid medium.Flue gas can pass through described molybdenum converter, surge flask A, surge flask B, absorption bottle A and absorption bottle B successively by described gas sampling gun under the effect of described aspiration pump, finally can flow to described smoke detecting instrument through described gas outlet.
When using the utility model carry out the categorised collection of flue gas nitrogen substance and measure, described gas sampling gun is inserted sampled point and opens the collection that described aspiration pump carries out flue gas.In gatherer process, flue gas first enters described molybdenum converter by described gas sampling gun, total nitrogen oxide in flue gas is all converted into NO by molybdenum converter, flue gas after the process of molybdenum converter enters the surge flask A in described collector successively by described draft tube, surge flask B, absorption bottle A and absorption bottle B, the drop collection that flue gas produces through surge flask A and surge flask B condensation is stayed in bottle, flue gas is through absorption bottle A and absorption bottle B, solid granulates is wherein absorbed by the distilled water in bottle, the flue gas of being discharged by described gas outlet flows to described smoke detecting instrument by branch air path, by smoke detecting instrument, the NO in flue gas is directly measured.By described collector categorised collection to drop and solid granulates can for determination and analysis subsequently.
The collection result of described collector to drop is affected in order to avoid the gas in described gas sampling gun in advance condensation to occur as far as possible, flue gas preferably at least can be heated to the hot type sampling gun of 120 DEG C by described gas sampling gun, thus makes all substances in flue gas enter into described molybdenum converter and collector with the form of complete gaseous state as much as possible.
Conduit path between described surge flask A and surge flask B can also set up some surge flasks, the surge flask group that all surge flasks are communicated with by conduit serial connection formation one, with the condensation process time of this prolong smoke in surge flask, thus guarantee condensation collecting effect further.
In addition, the air intake opening place of described smoke detecting instrument can also connection traffic meter A, so that the Real-Time Monitoring of flue gas charge flow rate when measuring; The all right connection traffic meter B in bleeding point place of described aspiration pump and pressure gauge, so that the enforcement of extraction flow is monitored during pump work.
The beneficial effects of the utility model are: on-the-spot can synchronously carry out the categorised collection of drop and solid granulates and the mensuration of NO in flue gas, have fast, feature easily; The drop collected and solid granulates can be used for further determination and analysis, thus obtain concentration level and the distribution situation data of the nitrogen element of different existence form.
Accompanying drawing illustrates:
Fig. 1 is the structural drawing of the utility model nitrogen Elemental Speciation Analysis monitoring device.
Embodiment:
Embodiment 1
Below in conjunction with accompanying drawing, the utility model is specifically described.As shown in Figure 1, nitrogen Elemental Speciation Analysis monitoring device described in the utility model comprises: for extract from sampled point flue gas gas sampling gun 1, for the total nitrogen oxide in flue gas is all converted into nitrogen monoxide (NO) molybdenum converter 2, for condensation process flue gas and carry out drop and solid granulates categorised collection collector 3, for measuring the smoke detecting instrument 14 of NO content in flue gas and providing the aspiration pump 15 of power for flow of flue gas in whole device.Described collector 3 comprises for the low temperature bath 4 of holding low-temperature liquid medium, the surge flask A5 collected for flue gas condensing and drop and surge flask B6 and for the absorption bottle A7 that collects solid granulates in flue gas and absorption bottle B8; Surge flask A5, surge flask B6, absorption bottle A7 and absorption bottle B8 are airtight, be communicated with, be communicated with between surge flask B6 with absorption bottle A7 by conduit B10, be communicated with by conduit C11 between absorption bottle A7 with absorption bottle B8 between surge flask A5 with surge flask B6 by conduit A9; The bottleneck of surge flask A5 is also provided with draft tube 12, and it is inner that surge flask A5 is stretched in draft tube 12 one end, and the other end connects the gas outlet of described molybdenum converter 2, and the air intake opening of described molybdenum converter 2 is communicated with the gas outlet of described gas sampling gun 1; The bottleneck of described absorption bottle B8 is also provided with gas outlet 13, and one end that described gas outlet 13 is positioned at absorption bottle B8 outside is communicated with described smoke detecting instrument 14 and aspiration pump 15 by branch air path simultaneously.
When device is in running order, distilled water is marked with in described absorption bottle A7 and absorption bottle B8, one end that described conduit B10 is communicated with absorption bottle A7 to be stretched in bottle below distilled water liquid level, one end that described conduit C11 is communicated with absorption bottle A7 is positioned at more than bottle distilled water liquid level, the one end being communicated with absorption bottle B8 to be stretched in bottle below distilled water liquid level, one end that described gas outlet 13 is communicated with absorption bottle B8 is positioned at more than bottle distilled water liquid level, cryogenic liquid medium is marked with in described low temperature bath 4, described surge flask A5, surge flask B6, absorption bottle A7 and absorption bottle B8 all immerses in cryogenic liquid medium, flue gas can pass through described molybdenum converter 2, surge flask A5, surge flask B6, absorption bottle A7 and absorption bottle B8 successively by described gas sampling gun 1 under the effect of described aspiration pump 15, finally can flow to described smoke detecting instrument 14 through described gas outlet 13.
The collection result of described collector 3 pairs of drops is affected in order to avoid the gas in described gas sampling gun 1 in advance condensation to occur as far as possible, described gas sampling gun 1 selects the hot type sampling gun that flue gas at least can be heated to 120 DEG C, enters into described molybdenum converter 2 and collector 3 to make all substances in flue gas as much as possible with the form of complete gaseous state.
The air intake opening place connection traffic meter A16 of described smoke detecting instrument 14, so that carry out Real-Time Monitoring to flue gas charge flow rate when measuring; The bleeding point place connection traffic meter B17 of described aspiration pump 15 and pressure gauge 18, so that carry out enforcement monitoring when aspiration pump works to extraction flow.
When using the utility model carry out the categorised collection of nitrogen substance in flue gas and measure, described gas sampling gun 1 is inserted sampled point and opens described aspiration pump 15 and carry out smoke collecting.In gatherer process, flue gas first enters described molybdenum converter 2 by described gas sampling gun 1, total nitrogen oxide in flue gas is all converted into NO by molybdenum converter 2, flue gas after molybdenum converter 2 processes enters the surge flask A5 in described collector 3 successively by described draft tube 12, surge flask B6, absorption bottle A7 and absorption bottle B8, the drop collection that flue gas produces through surge flask A5 and surge flask B6 condensation is stayed in bottle, flue gas is through absorption bottle A7 and absorption bottle B8, solid granulates is wherein absorbed by the distilled water in bottle, the flue gas of being discharged by described gas outlet 13 flows to described smoke detecting instrument 14 by branch air path, directly measured by the NO in smoke detecting instrument 14 pairs of flue gases.By the categorised collection of described collector 3 to drop and solid granulates can for determination and analysis subsequently.In the categorised collection and mensuration process of flue gas, by flowmeter A16, flowmeter B17 and pressure gauge 18, Real-Time Monitoring is carried out to the flue gas flow in corresponding gas circuit, and regulated by aspiration pump 15 pairs of flue gas flows where necessary.
Embodiment 2
Embodiment 2 is substantially identical with the structure of embodiment 1, and difference is the conduit path between described surge flask A5 and surge flask B6 also has additional 4 surge flasks, the surge flask group that above-mentioned 6 surge flasks are communicated with by conduit serial connection formation one.When carrying out condensation and collecting, flue gas can enter surge flask A5 by draft tube 12, and one by one by middle 3 surge flasks set up, finally enters surge flask B6, and flow to downstream gas circuit by conduit B10.The above-mentioned surge flask group be connected in series by conduit effectively can extend the condensation process time to flue gas, thus further ensure that condensation collecting effect.
Above-mentioned embodiment is only for illustration of the utility model; wherein the structure of each parts and connection to arrange etc. and can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (4)
1. a nitrogen Elemental Speciation Analysis monitoring device: it is characterized in that comprising: for extract from sampled point flue gas gas sampling gun (1), for the total nitrogen oxide in flue gas being all converted into nitric oxide production molybdenum converter (2), for condensation process flue gas and carry out drop and solid granulates categorised collection collector (3), for measuring the smoke detecting instrument (14) of NO content in flue gas and providing the aspiration pump of power (15) for flow of flue gas in whole device;
Collector (3) comprises the low temperature bath (4) for holding low-temperature liquid medium, the surge flask A (5) collected for flue gas condensing and drop and surge flask B (6) and for the absorption bottle A (7) that collects solid granulates in flue gas and absorption bottle B (8), surge flask A (5), surge flask B (6), absorption bottle A (7) and absorption bottle B (8) is airtight, be communicated with by conduit A (9) between surge flask A (5) with surge flask B (6), be communicated with by conduit B (10) between surge flask B (6) with absorption bottle A (7), be communicated with by conduit C (11) between absorption bottle A (7) with absorption bottle B (8), the bottleneck of surge flask A (5) is provided with draft tube (12), it is inner that surge flask A (5) is stretched in draft tube (12) one end, the other end connects the gas outlet of molybdenum converter (2), and the air intake opening of molybdenum converter (2) is communicated with the gas outlet of gas sampling gun (1), the bottleneck of absorption bottle B (8) is provided with gas outlet (13), and one end that gas outlet (13) is positioned at absorption bottle B (8) outside is communicated with smoke detecting instrument (14) and aspiration pump (15) by branch air path simultaneously,
When device is in running order, be marked with distilled water in absorption bottle A (7) and absorption bottle B (8), one end that conduit B (10) is communicated with absorption bottle A (7) to be stretched in bottle below distilled water liquid level; One end that described conduit C (11) is communicated with absorption bottle A (7) is positioned at more than bottle distilled water liquid level, and the one end being communicated with absorption bottle B (8) to be stretched in bottle below distilled water liquid level; One end that gas outlet (13) is communicated with absorption bottle B (8) is positioned at more than bottle distilled water liquid level, low temperature bath is marked with cryogenic liquid medium in (4), and surge flask A (5), surge flask B (6), absorption bottle A (7) and absorption bottle B (8) all immerse in cryogenic liquid medium; Flue gas can pass through described molybdenum converter (2), surge flask A (5), surge flask B (6), absorption bottle A (7) and absorption bottle B (8) successively by described gas sampling gun (1) under the effect of aspiration pump (15), finally can flow to smoke detecting instrument (14) through gas outlet (13).
2. nitrogen Elemental Speciation Analysis monitoring device according to claim 1, is characterized in that: described gas sampling gun (1) is flue gas to be at least heated to the hot type sampling gun of 120 DEG C.
3. nitrogen Elemental Speciation Analysis monitoring device according to claim 1, is characterized in that: air intake opening place connection traffic meter A (16) of described smoke detecting instrument (14); Bleeding point place connection traffic meter B (17) of aspiration pump (15) and pressure gauge (18).
4. nitrogen Elemental Speciation Analysis monitoring device according to claim 1, it is characterized in that: the conduit path between described surge flask A (5) and surge flask B (6) is provided with some surge flasks, the surge flask group that all surge flasks are communicated with by conduit serial connection formation one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797105.4U CN205067455U (en) | 2015-10-15 | 2015-10-15 | Nitrogen element morphological analysis monitoring devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797105.4U CN205067455U (en) | 2015-10-15 | 2015-10-15 | Nitrogen element morphological analysis monitoring devices |
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| CN205067455U true CN205067455U (en) | 2016-03-02 |
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| CN201520797105.4U Expired - Fee Related CN205067455U (en) | 2015-10-15 | 2015-10-15 | Nitrogen element morphological analysis monitoring devices |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504774A (en) * | 2020-12-29 | 2021-03-16 | 武汉区域气候中心 | Wireless remote control portable greenhouse gas bottle sampling method and sampling device thereof |
| CN112816620A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas concentration adjusting device and method |
-
2015
- 2015-10-15 CN CN201520797105.4U patent/CN205067455U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504774A (en) * | 2020-12-29 | 2021-03-16 | 武汉区域气候中心 | Wireless remote control portable greenhouse gas bottle sampling method and sampling device thereof |
| CN112816620A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas concentration adjusting device and method |
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Legal Events
| 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 Termination date: 20161015 |