CN208383526U - Differential flow measures the gas analyzing apparatus synchronous with extraction - Google Patents
Differential flow measures the gas analyzing apparatus synchronous with extraction Download PDFInfo
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- CN208383526U CN208383526U CN201820819072.2U CN201820819072U CN208383526U CN 208383526 U CN208383526 U CN 208383526U CN 201820819072 U CN201820819072 U CN 201820819072U CN 208383526 U CN208383526 U CN 208383526U
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Abstract
The utility model relates to gas analyzing apparatus fields, disclose a kind of gas analyzing apparatus that differential flow measurement is synchronous with extraction, it is characterized in that, total pressure measurement pipe (1) is placed windward, static pressure tube (2) is non-to be placed windward, the first measuring probe (401) of pressure measurement unit (4) is connected directly with total pressure measurement pipe or is connected by tracheae, and the second measuring probe (402) is connected directly with static pressure tube or is connected by tracheae；Gas analysis component (5) is connected to by gas collecting pipe (3) with total pressure measurement pipe and/or the static pressure tube；Arithmetic processor is connect with gas analysis component and pressure measurement unit signal.The acquisition of gas analysis component is set in the same device with differential pressure pressure measurement unit by the utility model, realizes that the sampling of analysis gas extraction can be synchronously completed with gas pressure measurement sampling, significant increase flow measurement and gas analysis extraction gas relevance.
Description
Technical field
The utility model relates to gas analyzing apparatus field, in particular to a kind of differential flow measures the gas synchronous with extraction
Body analytical equipment.
Background technique
Higher and higher with environmental requirement, measuring analysis and detection for industrial exhaust gas is industrial circle ring
The necessary work of guarantor.Such as the measurements such as dust, sulfide, nitride, ammonia ingredient in industrial exhaust gas are analyzed.It removes at present
Outside direct optics or electromagnetic wave on-line measurement, extraction-type measurement is an important means.Extraction-type measurement in no matter
It is inustion or optical measurement analytic approach, requires the gas extraction of tested quantity space through pipeline into analysis instrument.
It is exactly peristaltic pump that utensil is extracted in general important metering in extraction.Peristaltic pump such as can intercept at the bodies in rotary course
Long-pending gas is measured for subsequent analysis component.
But due in tested quantity space gas velocity variation it is big, flow difference is big, what peristaltic pump actually intercepted
Gas data property difference in equal spaces is bigger.This results in the reduction of subsequent measurement data accuracy.Therefore, present
Gas analysis in, be also gradually introduced flow parameter, lift gas analyzes the accuracy of data.
But the acquisition of existing flow parameter, analysis gas device is obtained from gas flowmeter, and current utilization is most general
Time be exactly matrix form multiple spot differential pressure gas flowmeter, differential pressure type matrix multiple spot gas flowmeter has oneself independent matrix form
Sampling and measuring device.Analyzing gas device is also to have oneself independent gas extraction arrangement, due to the uniformity that is considered as and
Representativeness is also respectively arranged using matrix form multi-point sampling sampled measurements and gas extraction arrangement in gas flow duct recently at present
The different location in road.Due to the complexity of gas in pipelines flowing, the data on flows for causing gas flowmeter to provide and gas point
The difference of the gas actual flow of analysis apparatus air suction sampling point, as a result gas analyzing apparatus measurement data accuracy is low.
Meanwhile existing gas sampling device either single-point sampling or multi-point sampling, it is all to be guaranteed by back flushing gas
Sampling pipe is nonclogging, needs to consume a large amount of gas and the energy.
Utility model content
Purpose of utility model: aiming at the problems existing in the prior art, the utility model provides a kind of differential flow survey
The gas analyzing apparatus synchronous with extraction is measured, the acquisition of gas analysis component is set to the same dress with differential pressure pressure measurement unit
In setting, realize that the sampling of analysis gas extraction can be synchronously completed with gas pressure measurement sampling, significant increase flow measurement and
Gas relevance, the significant increase accuracy of present apparatus measurement result are extracted in gas analysis, while significantly reducing equipment
Cost improves the reliability of equipment.
Technical solution: the utility model provides a kind of gas analyzing apparatus that differential flow measurement is synchronous with extraction, packet
Include total pressure measurement pipe, static pressure tube, gas collecting pipe, pressure measurement unit, gas analysis component and arithmetic processor；It is described
The open end of total pressure measurement pipe is placed windward, and the open end of the static pressure tube is non-to place windward, the pressure measurement unit
The first measuring probe be connected directly with the total pressure measurement pipe or be connected by tracheae, the second of the pressure measurement unit
Measuring probe is connected directly with the static pressure tube or is connected by tracheae；The gas analysis component is adopted by the gas
Collector is connected to the total pressure measurement pipe and/or the static pressure tube；The arithmetic processor and the gas analysis component
It is connected with the pressure measurement unit signal.
Preferably, the total pressure measurement pipe and the quantity of the static pressure tube are at least respectively two, each total pressure
Measurement pipe measures branch pipe by least one described total pressure and is connected to total pressure measurement general pipeline, and first measuring probe is located at
In the total pressure measurement general pipeline and close to its closed end；Each static pressure tube passes through at least one described static pressure measurement branch pipe
It is connected to the static pressure measurement general pipeline, second measuring probe is located in the quiet measurement general pipeline and close to its closed end.By
It is possible to different in flow, air pressure, the ingredient that the gas of flowing measures different location in space at one, and changes frequently, such as
Fruit only in the measurement point measured in space a setting total pressure measurement pipe and static pressure tube, certainly will will lead to pressure measurement
The measurement and analysis result inaccuracy of component and gas analysis component, so, it can also be empty in a measurement in the utility model
In different location multiple total pressure measurement pipes and static pressure tube are set, enable pressure measurement unit and gas analysis component
The mixture pressure data and gas-composition data of the multiple groups gas in a measurement space are enough measured and collect, to guarantee
The result that final arithmetic processor is dealt is more nearly the fact.
Preferably, each total pressure measurement branch pipe and/or each static pressure measurement branch pipe are adopted by a gas respectively
Collection branch pipe is connected to the gas collecting pipe；Alternatively, each total pressure measurement branch pipe and/or each static pressure measurement branch pipe are divided equally
It is not connected to by a gas collecting pipe with the gas analysis component (4) directly.Each total pressure measurement branch pipe and static pressure are surveyed
Measure branch pipe both can keep gas analysis component disposable respectively directly by a gas collecting pipe and gas analysis members
Analyze the gas componant of multiple sampled points；It can also be sampled respectively by multiple gas collecting branch pipes, then multiple gas collectings
The sample adopted is aggregated into gas collecting pipe again by branch pipe, is finally to enter gas analysis portion by this total gas collecting pipe
Constituent analysis is carried out in part, user can be with unrestricted choice.
Further, it further includes valve part that the differential flow, which measures the gas analyzing apparatus synchronous with extraction, institute
It states valve part to be arranged on the gas collecting pipe, and the valve part is connect with the arithmetic processor signal.Because
First measuring probe of pressure measurement unit is located in total pressure measurement pipe, and the gas collecting pipe of gas analysis component is also surveyed with total pressure
Buret connection, when the first measuring probe measures the gas pressure in total pressure measurement pipe, due to depositing for gas collecting pipe
In the flow velocity and pressure that certainly will will affect gas in total pressure measurement pipe, the total pressure measurement pipe that the first measuring probe measures will cause
Interior pressure is inaccurate, so valve part is arranged on gas collecting pipe in the utility model, when pressure measurement unit is measuring
When pressure, arithmetic processor control valve component is closed, and avoids influence of the gas collecting pipe to total pressure measurement pipe interior air-flow, when need
When sampling to the gas in total pressure measurement pipe, arithmetic processor control valve component opening is sampled, and thus can
The measurement accuracy of pressure measurement unit is enough effectively ensured.Since gas flow rate is smaller in static pressure tube, in connection static pressure measurement
The data influence measured the second measuring probe on the gas collecting pipe of pipe either with or without valve part is little, it is possible to no
If valve portion can also be arranged on the gas collecting pipe of connection static pressure tube if to guarantee that measurement result is more accurate
Part, these are all within the protection scope of the present utility model.
Further, the differential flow measure the gas analyzing apparatus synchronous with extraction further include be built in it is described entirely
The first deashing component in measurement pipe is pressed, and/or, it further include the second deashing component being built in the static pressure tube.It surveys
It is easy to deposition dust in buret, needs periodic cleaning, by total pressure measurement pipe and static pressure tube in the utility model
The deashing component of automatic ash removing is set, which can be the deashing stick or rotating vane that can be flowed and move with gas
Deng deashing component removes the dust in each measurement pipe by displacement, carries out without using recoil ash gas to measurement pipe clear
Reason reduces operating cost, energy saving.
Preferably, the position that the gas collecting pipe is connected to the total pressure measurement pipe is located at first measuring probe
In same section, and/or, the position and second measuring probe position that the gas collecting pipe is connected to the static pressure tube
In in same section.The purpose designed in this way is exactly to guarantee gas that pressure measurement unit measures and gas analysis component
Collected gas sample is truly realized and measures in the same time and place by the gas in same section, and the measurement of the present apparatus is promoted
Precision.
Further, the total pressure measurement pipe and/or the static pressure tube are by pressure measuring tube and gas extraction tube group
At first measuring probe is connected directly with the pressure measuring tube or is connected by tracheae, the gas analysis component
It is connected to by the gas sampler with the gas extraction pipe；The pressure measuring tube is set side by side with the gas extraction pipe
It sets；Alternatively, the gas extraction pipe is built in the pressure measuring tube；Alternatively, the pressure measuring tube is built in the gas
In body extraction tube.With in the prior art by gas composition analysis compared with gas pressure detection samples all in the same pipeline,
Gas extraction pipe and pressure measuring tube are arranged to two independent pipelines and focused on the two same complete by the utility model
It presses in measurement pipe, the first measuring probe is arranged in pressure measuring tube, gas sampler is connected to gas extraction pipe, in this way,
First measuring probe surveys pressure when would not be sampled by gas sampler when measuring the gas pressure in pressure measuring tube
The influence of buret interior air-flow ensure that the measurement accuracy of pressure measuring tube, and do not influence the sampling of gas sampler, also realize
The sampling of analysis gas extraction is synchronously completed with gas pressure measurement sampling, improves flow measurement and gas analysis is extracted gas and closed
Connection property guarantees the subsequent accuracy to gas pressure measurement and composition analysis result, while significantly reducing the cost of equipment, mentions
The high reliability of equipment.
Preferably, the open end windward of the pressure measuring tube and the open end windward of the gas extraction pipe are located at same
Section.Design can guarantee that the gas flow rate that enters in pressure measuring tube and gas extraction tube is almost the same in this way, avoid by
The subsequent measurement inaccuracy caused by the difference of pressure measuring tube and gas extraction tube internal gas flow velocity.
Preferably, the open end windward of the gas extraction pipe is located at the inside of the pressure measuring tube.
Further, it further includes being built in the pressure that the differential flow, which measures the gas analyzing apparatus synchronous with extraction,
Third deashing component in power measurement pipe, and/or, the 4th deashing component being built in the gas extraction pipe, and/or, it is interior
The 5th deashing component being placed in the static pressure tube.Deposition dust is easy in measurement pipe and gas extraction tube, it is fixed to need
Phase clears up, and passes through in the utility model and automatic ash removing is arranged in pressure measuring tube, static pressure tube and/or gas sample tube
Deashing component, the deashing component can be the deashing stick or rotating vane etc. that can be flowed and move with gas, and deashing component exists
Pass through displacement under the drive of air-flow and remove dust in each measurement pipe and probe tube, without using recoil ash gas to measurement
Pipe is cleared up, and operating cost, energy saving is reduced.
Preferably, the total pressure measurement pipe and/or the quantity at least two of the static pressure tube and measurement space
Interior to be distributed in matrix form, each total pressure measurement pipe measures branch pipe by least one total pressure and is connected to total pressure measurement general pipeline, respectively
The static pressure tube is connected to by least one static pressure measurement branch pipe with static pressure measurement general pipeline；Wherein, each total pressure measurement
Branch pipe and/or each static pressure measurement branch pipe are made of pressure measurement branch pipe and gas extraction branch pipe, each total pressure measurement
General pipeline and/or each static pressure measurement general pipeline are made of pressure measurement general pipeline and gas extraction general pipeline；Each pressure measurement
Pipe is connected to by least one described pressure measurement branch pipe with the pressure measurement general pipeline, and first measuring probe is located at described
Close to its closed end in pressure measurement general pipeline；Each gas extraction pipe by least one described gas extraction branch pipe with it is described
Gas extraction general pipeline connection, each gas extraction branch pipe pass through the gas collecting pipe and the gas analysis portion
Part connection；Alternatively, the gas extraction general pipeline passes through the gas collecting pipe and the gas analysis members.Due to flowing
The gas flow, air pressure, the ingredient that measure the different location in space at one be possible to different, and change frequently, if only
In the measurement point measured in space a setting pressure measuring tube and gas extraction tube, certainly will will lead to pressure measuring tube and
The measurement and analysis result inaccuracy of gas extraction pipe, so, it can also be in a measurement space not in the utility model
Multiple pressure measuring tubes and gas extraction tube are set with position, pressure measuring tube and gas extraction tube is enabled to measure and acquire
The multiple groups pressure data and gas-composition data measured in space to one, to guarantee knot that final arithmetic processor is dealt
Fruit is more nearly the fact；Each gas extraction pipe is connected to by gas extraction branch pipe with gas extraction general pipeline, can both be passed through respectively
The gaseous sample progress ingredient point that a gas collecting pipe disposably acquires multiple sampled points is connected on each gas extraction branch pipe
Analysis, can also acquire the mixed gas sample of multiple sampled points by a gas collecting pipe being arranged on gas extraction general pipeline
Constituent analysis is carried out, it is closer to the truth that subsequent analysis result is effectively ensured.
Working principle and beneficial effect: being windward side gas by the gas that total pressure measurement pipe enters in the utility model,
It is non-windward side (leeward to or with wind direction parallel) gas by the gas that static pressure tube enters, on the one hand, surveyed by pressure
It measures component measurement and enters the gas pressure data of the windward side in total pressure measurement pipe, while measuring into non-in static pressure tube
The data measured are passed to arithmetic processor again, pass through calculation process by windward side gas pressure data, pressure measurement unit
Device operation obtains the gas flow in total pressure measurement pipe and static pressure tube；On the other hand, pass through gas collecting pipe, gas analysis
Component can collect the gas in total pressure measurement pipe and/or static pressure tube to carry out gas composition analysis, and will analyze
The result come passes to arithmetic processor, by arithmetic processor according to the gas stream in above-mentioned total pressure measurement pipe and static pressure tube
Amount data and gas composition analysis data obtain processing result --- and it needs to spray how many in measurement position and what is sprayed
The chemical reagent of type, to eliminate the harmful substance in measurement point gas as much as possible.
As it can be seen that by the same equipment to the gas pressure measurement of a measurement position and to the measurement in the utility model
The gas componant measurement of position carries out in the same time and place, effectively avoids because same pipeline is interior since position is different, gas flowfield
Variation, bring data on flows and gas-composition data relevance are poor, the problem for causing gas analysis arrangement measurement result inaccurate,
Keep measurement result more accurate, be conducive to it is subsequent to measurement position carry out for effective pollution handle；The utility model is by gas
Body analytical sampling and pressure measurement sampling are integrated in a device, since the sampling time is synchronous with position, are greatly improved
The accuracy of measurement data, while equipment cost is reduced, easily facilitate maintenance.
Detailed description of the invention
Fig. 1 is that differential flow measures the gas analyzing apparatus schematic diagram synchronous with extraction in embodiment 1；
Fig. 2 is that differential flow measures the gas analyzing apparatus schematic diagram synchronous with extraction in embodiment 2；
Fig. 3 is that the part isometric structure that differential flow measures the gas analyzing apparatus synchronous with extraction in embodiment 3 is shown
It is intended to；
Fig. 4 is that the part isometric structure that differential flow measures the gas analyzing apparatus synchronous with extraction in embodiment 4 is shown
It is intended to；
Fig. 5 is that differential flow measures the gas analyzing apparatus schematic diagram synchronous with extraction in embodiment 5；
Fig. 6 is the position relationship structural diagram of pressure measuring tube and gas extraction pipe in embodiment 6；
Fig. 7 is the position relationship structural diagram of pressure measuring tube and gas extraction pipe in embodiment 6；
Fig. 8 is the position relationship structural diagram of pressure measuring tube and gas extraction pipe in embodiment 7；
Fig. 9 is that the part isometric structure that differential flow measures the gas analyzing apparatus synchronous with extraction in embodiment 8 is shown
It is intended to；
Figure 10 is that the part isometric structure that differential flow measures the gas analyzing apparatus synchronous with extraction in embodiment 9 is shown
It is intended to.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
Embodiment 1:
Present embodiments provide for a kind of flow measurement gas analyzing apparatus synchronous with extraction, as shown in Figure 1, mainly by
The size of the stainless steel making of 316 materials is that the rectangular total pressure measurement pipe 1 of 5CM*5CM and static pressure tube 2, pressure measurement unit 4(are excellent
Select Rosemount differential pressure transmitter), it is preferable to withdraw formula optical gas analyzers by gas analysis component 5(), 1 centimetre of diameter of gas
Collection tube 3, the arithmetic processor (not shown) based on server, it is preferable to use do irregular fortune by the first deashing component 12(
Dynamic deashing stick) and the second deashing component 13(it is preferable to use the deashing sticks for doing irregular movement) composition, 1 He of total pressure measurement pipe
Static pressure tube 2 is welded and fixed together back-to-back, and total pressure measurement pipe 1 is placed windward, and static pressure tube 2 is non-to be placed windward, and two
The end of person is closed end, and pressure measurement unit 4 has the first measuring probe 401 and the second measuring probe 402, the first measurement
Probe 401 is connect by threaded screw bore with total pressure measurement pipe 1, and link position is in total pressure measurement pipe 1 close to the position of closed end
Place, the second measuring probe 402 are connect by threaded screw bore with static pressure tube 2, and link position is in static pressure tube 2 close to envelope
At the position of closed end, gas analysis component 5 is connected to by gas collecting pipe 3 with total pressure measurement pipe 1, the setting of the first deashing component 12
In total pressure measurement pipe 1, the second deashing component 13 is arranged in static pressure tube 2, arithmetic processor and pressure measurement unit 4 and
Gas analysis component 5 is connected separately.
In the present embodiment, in order to guarantee the ultimate measurement accuracy of device, preferably by above-mentioned gas collection tube 3 and total pressure
The position setting that measurement pipe 2 is connected to is located in same section with the first measuring probe 401.
When being worked using the gas analyzing apparatus in present embodiment, total pressure measurement pipe 1 is placed windward, at this time
The natural right and wrong of static pressure tube 2 are placed windward, and gas enters through the open end of total pressure measurement pipe 1 at this time, reach the first measurement
Pop one's head in 401 when, the first measuring probe 401 is able to detect that the pressure in a total pressure measurement pipe 1, and the first measuring probe 401 will
The pressure data is transferred to arithmetic processor；At the same time, gas collecting pipe 3 collects the portion gas in total pressure measurement pipe 1
Sample, and the sample is conveyed to gas analysis component 4, the gas in total pressure measurement pipe 1 is obtained after the analysis of gas analysis component 4
The analysis result of the gas componant is transferred to by body ingredient (gas componant contains the substances such as SO2 or NO2), gas analysis component 4
Arithmetic processor；Gas enters through the open end of static pressure tube 2, when reaching the second measuring probe 402, the second measuring probe
402 are able to detect that the pressure in a static pressure tube 2, which is transferred at operation by the second measuring probe 402
Device is managed, arithmetic processor is by the pressure in the above-mentioned total pressure measurement pipe 1 received, pressure and gas in static pressure tube 2
After gas componant integrated treatment in collection tube 3, go out to measure by the equation calculations such as Bernoulli equation and fluid continuity equation
The gas flow and composition information of position control rear end monitoring device or desulphurization denitration by these flows and composition information again
Equipment carries out desulphurization denitration work to the gas of measurement point, to eliminate the harmful substance in measurement point gas as much as possible；In gas
After body enters in total pressure measurement pipe 1 and static pressure tube 2, the first deashing component 12 and the second deashing component 13 can be with gas streams
It moves and moves, the dust in each measurement pipe is removed by displacement.
It in the present embodiment, can also be by a gas collecting pipe 3 by static pressure tube 2 and gas analysis component 5
Connection, so that the gas that gas analysis component 5 can also acquire in static pressure tube 2 is analyzed, in total pressure measurement pipe 1
Gas analysis result comprehensively considers, these structures is not showed that in figure, but these structures are still in the protection scope of this patent.
Embodiment 2:
Present embodiment is the further improvement of embodiment 1, is mainly theed improvement is that, in the embodiment 1, due to
First measuring probe 401 of pressure measurement unit 4 is located in total pressure measurement pipe 1, the gas collecting pipe 3 of gas analysis component 5
It is connected to total pressure measurement pipe 1, when the first measuring probe 401 measures the gas pressure in total pressure measurement pipe 1, due to gas
The presence of body collection tube 3 certainly will will affect the flow velocity and pressure of gas in total pressure measurement pipe 1, will cause the first measuring probe 401
The pressure in total pressure measurement pipe 1 measured is inaccurate；And in the present embodiment, it can effectively avoid drawbacks described above.
Specifically, the differential flow in present embodiment measures in the gas analyzing apparatus synchronous with extraction such as Fig. 2,
The valve part 11 connecting with arithmetic processor signal is also set up on gas collecting pipe 3, when pressure measurement unit 4 is pressed in measurement
When power, arithmetic processor control valve component 11 is closed, and avoids influence of the gas collecting pipe 3 to 1 interior air-flow of total pressure measurement pipe, when
When needing to sample the gas in total pressure measurement pipe 1, the opening of arithmetic processor control valve component 11 is sampled, in this way
It just can effectively ensure that the measurement accuracy of pressure measurement unit 4.
Since gas flow rate is smaller in static pressure tube 2, connection static pressure tube 2 gas collecting pipe 3 on either with or without
The data influence that valve part 11 measures the second measuring probe 402 is little, it is possible to not set, if to guarantee measurement knot
Fruit is more accurate, valve part 11 can also be arranged on the gas collecting pipe 3 of connection static pressure tube 2, these are all in this reality
It applies in the protection scope of mode.
In addition to this, present embodiment is identical with embodiment 1, is not repeated herein.
Embodiment 3:
Present embodiment is the further improvement of embodiment 2, mainly thes improvement is that, in embodiment 2, is surveying
Only one total pressure measurement pipe 1 of difference and static pressure tube 2 in quantity space, since the gas of flowing is in a measurement space
Flow, air pressure, the ingredient of different location are possible to different, and change frequently, if an only measurement point in measurement space
Measurement pipe is set, the measurement and analysis result inaccuracy of pressure measurement unit 4 and gas analysis component 5 certainly will be will lead to；And this
Embodiment can be avoided drawbacks described above, specifically:
Different location four total pressure measurement pipes 1 of comprehensive setting such as Fig. 3, in present embodiment in same measurement space
With four static pressure tubes 2；Total pressure measurement pipe 1 measures branch pipe 6 by a total pressure and is connected to total pressure measurement general pipeline 7 two-by-two, presses
The first measuring probe 401 setting of power measuring part 4 is in total pressure measurement general pipeline 7 and close to its closed end；Static pressure measurement two-by-two
The end of pipe 2 is connected to by a static pressure measurement branch pipe 8 with static pressure measurement general pipeline 9, the second measuring probe of pressure measurement unit 4
402 are arranged in static pressure measurement general pipeline 9 and close to its closed end；Design is so that the measurement that pressure measurement unit 4 measures in this way
Gas pressure in space is more nearly average level, and the result for guaranteeing that final arithmetic processor is dealt is truer.On
It states each total pressure measurement branch pipe 6 to be connected to by a gas collecting branch pipe 10 with gas collecting pipe 3 respectively, gas collecting pipe 3
It is connected to again with gas analysis component 5, can be designed so that collected gas can more reflect entire survey in gas collecting pipe 3 in this way
Actual gas state in quantity space can guarantee the accuracy of subsequent gases analysis.
In addition to this, present embodiment is identical with embodiment 2, is not repeated herein.
Embodiment 4:
Present embodiment is roughly the same with embodiment 3, and the main distinction is, in present embodiment, each total pressure measurement
Branch pipe 6 is all directly connected to by a gas collecting pipe 3 with gas analysis component 5 respectively, such as Fig. 4, and design in this way can make gas
Body analysis component 5 disposably analysis measurement space in multiple sampled points gas componant, then carry out comprehensive analysis gas at
Point, it also can effectively ensure that precision of analysis.
In addition to this, present embodiment is identical with embodiment 3, is not repeated herein.
Embodiment 5:
Present embodiment is another embodiment of embodiment 2, can also overcome implementation described in embodiment 2
Defect present in mode 1, specifically:
Such as Fig. 5, total pressure measurement pipe 1 is designed to by pressure measuring tube 101 and 102 groups of gas extraction tube in present embodiment
At dual pipe structure, pressure measuring tube 101 and gas extraction tube 102 be set side by side, and the open end windward of the two be located at it is same
In one section, the first measuring probe 401 is connected directly with pressure measuring tube 101 or is connected by tracheae, gas analysis component 5
It is connected to by gas collecting pipe 3 with gas extraction pipe 102, in this way, the first measuring probe 401 is in measurement pressure measuring tube 101
Gas pressure when would not be influenced by gas collecting pipe 3, that is, ensure that the measurement accuracy of pressure measurement unit 4, and not
The sampling for influencing gas analysis component 5, also saves time of measuring.
Third deashing component 14 is also set up in above-mentioned pressure measuring tube 101, also sets up cleaning politics, economics, organization, and ideology in gas extraction pipe
Grey component 15, also sets up the 5th deashing component 16 in static pressure tube 2.
Since gas flow rate is smaller in static pressure tube 2, static pressure tube 2 is that dual pipe structure visits the second measurement
First 402 data influences that measure are little, so still static pressure tube 2 can be designed to one-pipe, if to guarantee to survey
It is more accurate to measure result, static pressure tube 2 can also be designed to dual pipe structure, these are all in the protection model of present embodiment
In enclosing.
In addition to this, present embodiment is identical with embodiment 2, is not repeated herein.
Embodiment 6:
Present embodiment is roughly the same with embodiment 5, and the main distinction is, pressure measuring tube 101 and gas extraction pipe
102 are not set side by side, but gas extraction pipe 102 is built in pressure measuring tube 101, such as Fig. 6；Alternatively, pressure is surveyed
Buret 101 is built in gas sample tube 102, and such as Fig. 7, and the open end windward of the two is located at same section, is designed in this way
Independent two pipelines can be reached to guarantee the accurate purpose of measurement result.
In addition to this, present embodiment is identical with embodiment 5, is not repeated herein.
Embodiment 7:
Present embodiment is roughly the same with embodiment 6, and the main distinction is, the open end windward of gas sample tube 102
Positioned at the end of pressure measuring tube 101, such as Fig. 8, i.e., the open end windward of the two is not in same section.Design can also reach in this way
To independent two pipelines to guarantee the accurate purpose of measurement result.
In addition to this, present embodiment is identical with embodiment 6, is not repeated herein.
Embodiment 8:
Present embodiment is the further improvement of embodiment 5, mainly thes improvement is that, in embodiment 5, is surveying
Difference only one total pressure measurement pipe 1(namely only one pressure measuring tube 101 and a gas extraction pipe in quantity space
102) and a static pressure tube 2, due to the gas of flowing a flow for measuring the different location in space, air pressure, at
Divide and be possible to different, and change frequently, if only measuring measurement point setting total pressure measurement pipe 1 and static pressure survey in space
Buret 2 certainly will will lead to the measurement and analysis result inaccuracy of total pressure measurement pipe 1 and static pressure tube 2；And present embodiment energy
Drawbacks described above is enough avoided, specifically:
Four total pressure measurement pipes 1 of the comprehensive setting of different location and four such as Fig. 9, in present embodiment in measurement space
A static pressure tube 2, and be distributed in measurement space in matrix form；Total pressure measurement pipe 1 measures branch pipe 6 by a total pressure two-by-two
It is connected to total pressure measurement general pipeline 7, static pressure tube 2 is connected to by a static pressure measurement branch pipe 8 with static pressure measurement general pipeline 9 two-by-two；
In total pressure measurement pipe 1, there are pressure measuring tube 101 and gas extraction tube 102, so also having pressure in total pressure measurement branch pipe 6
Branch pipe 601 and gas extraction branch pipe 602 are measured, in total pressure measurement general pipeline 7, also there is pressure measurement general pipeline 701 and gas extraction
General pipeline 702, the first measuring probe 401 are arranged in pressure measurement general pipeline 701, and the second measuring probe 402 is arranged in static pressure measurement
In general pipeline 9；Design is so that the gas pressure in the measurement space measured is more nearly being averaged in entire measurement space in this way
Level guarantees that final measurement result is truer.In four gas extraction pipes 102, gas extraction pipe 102 passes through one two-by-two
Gas extraction branch pipe 602 is connected to gas extraction general pipeline 702, and gas analysis component 5 passes through total a gas collecting pipe 3 and gas
Body extracts the connection of general pipeline 702；It can be designed so that the collected gas of gas collecting pipe 3 can more reflect entire measurement space in this way
Interior actual gas state can guarantee the accuracy of subsequent gases analysis.
In present embodiment, can also there are pressure measuring tube 101 and gas extraction tube 102 in static pressure tube 2, in static pressure
It measures in branch pipe 6, can also there is pressure measurement branch pipe 601 and gas extraction branch pipe 602, it, can also be in static pressure measurement general pipeline 7
There are pressure measurement general pipeline 701 and gas extraction general pipeline 702, so that gas analysis component 5 can also acquire in static pressure tube 2
Gas is analyzed, and is comprehensively considered with the gas pressure measurement result in total pressure measurement pipe 1 with gas analysis result, in figure not
These structures are shown, but these structures are still in the protection scope of this patent.
Embodiment 9:
Present embodiment is roughly the same with embodiment 8, and the main distinction is, each gas extraction in present embodiment
Branch pipe 602 is respectively coupled a gas collecting pipe 3, and then each gas collecting pipe 3 is connected to gas analysis component 5 again；Such as figure
10, design in this way can disposably analyze the gas componant of multiple sampled points in measurement space, then carry out comprehensive analysis gas
Body ingredient, also can effectively ensure that precision of analysis.
In addition to this, present embodiment is identical with embodiment 8, is not repeated herein.
Above embodiment is only to illustrate the technical ideas and features of the present invention, and its object is to allow be familiar with this skill
The people of art can understand the content of the utility model and implement accordingly, not limit the protection scope of the present invention.
It is all according to the spirit of the present invention substantially equivalent transformation that is done or modification, should all cover the protection scope of the utility model it
It is interior.
Claims (12)
1. a kind of differential flow measures the gas analyzing apparatus synchronous with extraction, which is characterized in that including total pressure measurement pipe (1),
Static pressure tube (2), gas collecting pipe (3), pressure measurement unit (4), gas analysis component (5) and arithmetic processor；It is described
Total pressure measurement pipe (1) is placed windward, and the static pressure tube (2) is non-to place windward, and the first of the pressure measurement unit (4) is surveyed
Amount probe (401) is connected directly with the total pressure measurement pipe (1) or is connected by tracheae, the pressure measurement unit (4)
Second measuring probe (402) is connected directly with the static pressure tube (2) or is connected by tracheae；The gas analysis component
(5) it is connected to by the gas collecting pipe (3) with the total pressure measurement pipe (1) and/or the static pressure tube (2)；The fortune
Processor is calculated to connect with the gas analysis component (5) and the pressure measurement unit (4) signal.
2. differential flow according to claim 1 measures the gas analyzing apparatus synchronous with extraction, which is characterized in that described
Total pressure measurement pipe (1) and the quantity of the static pressure tube (2) are at least respectively two, and each total pressure measurement pipe (1) passes through
At least one total pressure measures branch pipe (6) and is connected to total pressure measurement general pipeline (7), and first measuring probe (401) is located at described complete
In pressure measurement general pipeline (7) and close to its closed end；Each static pressure tube (2) passes through at least one static pressure measurement branch pipe (8)
It is connected to static pressure measurement general pipeline (9), second measuring probe (402) is located in the static pressure measurement general pipeline (9) and close to it
Closed end.
3. differential flow according to claim 2 measures the gas analyzing apparatus synchronous with extraction, which is characterized in that each institute
Total pressure measurement branch pipe (6) and/or each static pressure measurement branch pipe (8) are stated respectively by a gas collecting branch pipe (10) and institute
State gas collecting pipe (3) connection.
4. differential flow according to claim 2 measures the gas analyzing apparatus synchronous with extraction, which is characterized in that each institute
Total pressure measurement branch pipe (6) and/or each static pressure measurement branch pipe (8) are stated respectively directly by a gas collecting pipe
(3) it is connected to the gas analysis component (5).
5. differential flow according to any one of claim 1 to 4 measures the gas analyzing apparatus synchronous with extraction, special
Sign is, further includes valve part (11), and the valve part (11) is arranged on the gas collecting pipe (3), and the valve
Door part (11) is connect with the arithmetic processor signal.
6. differential flow according to any one of claim 1 to 4 measures the gas analyzing apparatus synchronous with extraction, special
Sign is, further includes the first deashing component (12) being built in the total pressure measurement pipe (1), and/or, it further include being built in institute
State the second deashing component (13) in static pressure tube (2).
7. differential flow according to claim 1 measures the gas analyzing apparatus synchronous with extraction, which is characterized in that described
The position and first measuring probe (401) that gas collecting pipe (3) is connected to the total pressure measurement pipe (1) are located at same section
It is interior, and/or, the position and second measuring probe that the gas collecting pipe (3) is connected to the static pressure tube (2)
(402) it is located in same section.
8. differential flow according to claim 1 measures the gas analyzing apparatus synchronous with extraction, which is characterized in that described
Total pressure measurement pipe (1) and/or the static pressure tube (2) are made of pressure measuring tube (101) and gas extraction tube (102), institute
It states the first measuring probe (401) to be connected directly with the pressure measuring tube (101) or be connected by tracheae, the gas analysis
Component (5) is connected to by the gas collecting pipe (3) with the gas extraction pipe (102)；
The pressure measuring tube (101) is set side by side with the gas extraction pipe (102)；
Alternatively, the gas extraction pipe (102) is built in the pressure measuring tube (101)；
Alternatively, the pressure measuring tube (101) is built in the gas extraction pipe (102).
9. differential flow according to claim 8 measures the gas analyzing apparatus synchronous with extraction, which is characterized in that described
The open end windward of pressure measuring tube (101) and the open end windward of the gas extraction pipe (102) are located at same section.
10. differential flow according to claim 8 measures the gas analyzing apparatus synchronous with extraction, which is characterized in that institute
The open end windward for stating gas extraction pipe (102) is located at the inside of the pressure measuring tube (101).
11. differential flow according to claim 8 measures the gas analyzing apparatus synchronous with extraction, which is characterized in that also
Including the third deashing component (14) being built in the pressure measuring tube (101), and/or, it is built in the gas extraction pipe
(102) the 4th deashing component (15) in, and/or, the 5th deashing component (16) being built in the static pressure tube (2).
12. the differential flow according to any one of claim 8 to 11 measures the gas analyzing apparatus synchronous with extraction,
Be characterized in that, the quantity at least two of the total pressure measurement pipe (1) and/or the static pressure tube (2) and measurement space
Interior to be distributed in matrix form, each total pressure measurement pipe (1) measures general pipeline by least one total pressure measurement branch pipe (6) and total pressure
(7) it is connected to, each static pressure tube (2) is connected to by least one static pressure measurement branch pipe (8) with static pressure measurement general pipeline (9)；
Wherein, each total pressure measurement branch pipe (6) and/or each static pressure measurement branch pipe (8) are gentle by pressure measurement branch pipe (601)
Body extracts branch pipe (602) composition, and each total pressure measurement general pipeline (7) and/or each static pressure measurement general pipeline (9) are surveyed by pressure
Measure general pipeline (701) and gas extraction general pipeline (702) composition；Each pressure measuring tube (101) passes through at least one described pressure
Measurement branch pipe (601) is connected to the pressure measurement general pipeline (701), and first measuring probe (401) is located at pressure survey
It measures in general pipeline (701) close to its closed end；Each gas extraction pipe (102) passes through at least one described gas extraction branch pipe
(602) it is connected to the gas extraction general pipeline (702), each gas extraction branch pipe (602) passes through the gas
Collection tube (3) is connected to the gas analysis component (5)；Alternatively, the gas extraction general pipeline (702) passes through the gas collecting
Pipe (3) is connected to the gas analysis component (5).
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