CN106153429A - Remove the method for the dispersion phase in gas to be analyzed and implement the device of the method - Google Patents
Remove the method for the dispersion phase in gas to be analyzed and implement the device of the method Download PDFInfo
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- CN106153429A CN106153429A CN201510146298.1A CN201510146298A CN106153429A CN 106153429 A CN106153429 A CN 106153429A CN 201510146298 A CN201510146298 A CN 201510146298A CN 106153429 A CN106153429 A CN 106153429A
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Abstract
Present invention provide for removing the inertia-gravity filter of the dispersion phase in gas to be analyzed.This filter includes: have the flow model expansion chamber (3) arranged vertically of upper end (5) and bottom (7)；The inlet tube (9) being connected with the bottom (7) of expansion chamber (3)；The outlet for circulated gases (11) being connected with inlet tube (9)；At the discharge-channel for gas to be analyzed (13) that the upper part at its inlet port (15) place with the space of expansion chamber (3) is connected；The outlet for gas to be analyzed (17) that outlet with the discharge-channel of gas to be analyzed (13) is connected, wherein, in the way of the intensity of the circulation airflow of the outlet of circulated gases (11) and the mutual relation between the intensity of the circulation airflow of the outlet (17) of gas to be analyzed being set up in the range of 10 to 50, filter (1) is formed.
Description
Technical field
The present invention relates to for filtering gas to be analyzed to substantially reduce the solid being contained therein or liquid gas
The method and apparatus of aerosol contaminants.
Background technology
In order to clean gas to be analyzed, generally use have sufficiently small hole dimension mechanical filter element or
Diaphragm, it can stop the solid or liquid aerosol contaminants being contained in gas to be analyzed.Such as, from
It has been found that this filter in WO 2013/098693 A1 or US 4 032 457.
The shortcoming of this filter be in use need according to its chocking-up degree it to be replaced or
Cleaning, the chocking-up degree of himself depends on the content of the dispersion phase to be removed in gas and uses parameter,
And this is variable, thus to determining that the moment changing or clearing up filter introduces uncertainty.And,
During changing filter, need to stop feeding gas to be analyzed, which results in the periodicity the being forced fortune of analyser
Row mode.
Summary of the invention
The purpose of the present invention includes method and the one providing a kind of dispersion phase removed in gas to be analyzed
Implementing the device of the method, this device runs in a continuous mode and can effectively remove in gas to be analyzed
Dispersion phase, keeps the simple in construction of equipment and use cost low.
According to the present invention, by using inertia-gravity filter according to claim 1 and according to claim 10
The method of cleaning gas to be analyzed achieve above-mentioned purpose.Dependent claims 2 to 9 disclose used
The preferred implementation of property gravity filter, and disclose in dependent claims 11 to 12 for removing
The preferred implementation of the method for the pollutant being included in gas to be analyzed with disperse phase.
According to the present invention, include for removing the inertia-gravity filter of the dispersion phase in gas to be analyzed: tool
There is the flow model expansion chamber arranged vertically of upper and lower end；With entering that the bottom of expansion chamber is connected
Mouth pipe；The outlet for circulated gases being connected with inlet tube；For the discharge-channel of gas to be analyzed,
Described discharge-channel is connected by the upper part of its inlet port with the space of expansion chamber；For gas to be analyzed
Outlet, it is connected with the outlet of the discharge-channel of gas to be analyzed；Wherein, filter is formed so that
The intensity of the circulation airflow of the outlet of the intensity of the circulation airflow of the outlet of circulated gases and gas to be analyzed
Between mutual relation in the range of 10 to 50, preferably 20 to 40.It is used in used filter
Principle of inertia include, destroy in direction straight up and treat the direction of motion of the primary air with post analysis.When
When flow direction changes, the dispersion phase being made up of solid and liquid aerosol contaminants being included in primary air
A part continues motion due to inertia along with air-flow, this air-flow at the air-flow of gas to be analyzed from primary air
After distributing, by hereinafter referred to as " circulation airflow " at application documents.Therefore after making tentatively to clean
The air-flow of gas to be analyzed vertically upright rises, and wherein have selected the rate of climb the most slowly, i.e. be less than
Treat the still solid in air-flow to be analyzed and the sedimentation velocity of aerosol particle removed from gas.At these
Under the conditions of, solid particle is taken out of by the air-flow of circulated gases, and described solid particle is included in gas to be analyzed
Solid particle in air-flow passes through the weight of himself contrary with the direction of motion of the air-flow of gas to be analyzed
Move in vertical flow model expansion chamber in direction, i.e. move down.This effect is the used present invention
The basis of the gravity principle of the function of theme.It is included in the aerosol in the air-flow of gas to be analyzed at expansion chamber
In slowly rise, and be deposited on the inwall of expansion chamber and left behind by himself weight, and also being circulated
Air-flow is taken out of.Use and can avoid using filter membrane according to the inertia-gravity principle of the function of the filter of the present invention,
Activated carbon or other porous filters, therefore maintain cheap and simple in construction, and also keep according to this
The operating cost of the device of invention is low.
Gas cleaning principle according to the present invention can with preparing gas in the factory to analyze its specific character,
Such as, for water and the analyser of the dew point of hydro carbons, for chromatograph and other measurement apparatus.
According to an embodiment of the invention, the discharge-channel of gas to be analyzed is arranged on the upper end of expansion chamber
It is connected in portion and with the outlet of gas to be analyzed, gas can be analysed to by it and introduce gas analyzing apparatus
At (not shown).Another embodiment of the invention provides the discharge-channel of gas to be analyzed and sets vertically
Putting in expansion chamber, the outlet of the discharge-channel of gas the most to be analyzed is arranged in the bottom of expansion chamber, from
And the passage being used for gas to be analyzed is arranged in the expansion chamber of hollow, extend to lower end from the upper end of expansion chamber
Portion.The advantage of this embodiment of the present invention is the inlet tube of filter and outlet is configured to the compactest.
According to an embodiment of the invention, for the discharge-channel of gas to be analyzed and for gas to be analyzed
The outlet of body forms as one formula pipeline, and it is releasably connected to the bottom of expansion chamber or is alternatively connected to
The upper end of expansion chamber, this depends on the row for gas to be analyzed in the above-mentioned two embodiment of the present invention
The outlet putting passage is provided on bottom or top.Expansion chamber is embodied as pipe with extraneous gas-tight seal and crimps
Fit form, this is capable of expansion chamber and dismountable connection between the outlet of gas to be analyzed.
In an embodiment of the invention, expansion chamber sidewall and for gas to be analyzed discharge-channel tool
Having constant cross section profile, this makes to be used for the pipe fitting being simple to manufacture constructing the filter according to the present invention.
Most preferably so that be formed as having identical for the inlet tube of circulated gases and the internal diameter of outlet
Diameter, this diameter is less than or equal to the internal diameter of flow model expansion chamber.Inlet tube and outlet for circulated gases
Internal diameter be flow model expansion chamber internal diameter 20% to 80%.This makes to exist along with the air-flow of gas to be analyzed
Moving upward in flow-type expansion chamber and reduce the speed of air-flow, this contributes to again in the air-flow of gas to be analyzed
Solid and liquid suspended-particle are deposited on the wall of expansion chamber so that it is respectively contrary with the air-flow of gas to be analyzed
Direction in move downward.
In an embodiment of the invention, it is provided with in expansion chamber and is coaxially disposed for gas to be analyzed
Discharge-channel, which results in the laminar flow properties of the air-flow of gas to be analyzed, and correspondingly improve suspension
The sedimentation capacity of grain.
Most preferably, for the inlet tube of circulation airflow and outlet for being coaxially disposed, this is due to be analyzed
The primary air of gas neutralize in the linear motion of the particle in the air-flow of circulated gases subsequently, when
When the direction of motion of the air-flow of gas to be analyzed deviates this axis, it is provided that clean the gas of this gas to be analyzed
The maximally effective inertia mode of stream.
In very particularly preferred embodiment of the invention, the gas to be analyzed that the structure of filter can will separate from air-flow
The volume of the body rise time in flow model expansion chamber controls in the range of 2 to 10 minutes, and preferably 4
By 6 minutes.The volume flow rate of the gas in the air-flow of gas to be analyzed can be at 0.25 to 0.3 Standard Liters per Minute
Between, the flow velocity of circulation airflow can be between 6 to 10 Standard Liters per Minute simultaneously.The unit of air velocity
" Standard Liters per Minute " means the flow velocity of several litres per minute under the air pressure of 0.1MPa.
According to the present invention, have employed the pollutant of the form of the dispersion phase that a kind of removing is included in gas to be analyzed
Method, the primary air of the gas being wherein analysed to feeds in inertia-gravity filter to reduce gas to be analyzed
Solid in body and the content of liquid aerosol contaminants, wherein extract gas to be analyzed primary air one
This air-flow, as the air-flow of gas to be analyzed, is entered the flow model being vertically arranged and sinks by part in an upward direction
In fall room, the most remaining air-flow forms the air-flow of circulated gases.Upper part from expansion chamber space takes out gas
Phase between analysis subsequently, the intensity of the intensity of the air-flow of circulated gases and the air-flow of gas to be analyzed
Mutual relation between 10 to 50 in the range of, preferably 20 to 40.Preferably, the method used is with even
Discontinuous Conduction mode is carried out.Most preferably, implementing the method makes the air-flow of gas the most to be analyzed settle at flow model
In room rise time between 2 to 10 minutes in the range of, preferably 4 to 6 minutes, such as this passed through
The said flow level of the said flow level of the air-flow of gas to be analyzed and the air-flow of circulated gases realizes.
Accompanying drawing explanation
By Fig. 1 and 2, the flesh and blood of the present invention is illustrated.
Fig. 1 show schematically show the partial longitudinal sectional figure of used filter, wherein for gas to be analyzed
The outlet of discharge-channel is arranged in the upper end of expansion chamber.
Fig. 2 show schematically show the partial longitudinal sectional figure of used filter, wherein for gas to be analyzed
The outlet of discharge-channel is arranged in the bottom of expansion chamber.
Detailed description of the invention
Inertia-gravity filter shown in Fig. 1 includes the flow model expansion chamber 3 arranged vertically, and it is formed as ellipse
Circular hollow pipe fitting and include upper end 5 and bottom 7 respectively.Bottom 7 is configured to T-piece, its
Flow channel 8a, 8b, 8c have circular cross-section, wherein bottom 7 setting vertically and directly with sedimentation
The passage 8a that room 3 is connected has the internal diameter approximately equivalent with the internal diameter of expansion chamber 3, and is arranged to perpendicular
Two horizontal channels 8b, 8c are configured to coaxially to each other and have internal diameter less compared with Vertical Channel 8a.
The vertical pipeline 8a of bottom 7 is tightly connected by pipe press fit part with the lower end of flow model expansion chamber 3
The form of 21a is embodied as detachable connection.Horizontal pipe 8b and 8c is respectively by pipe press fit part 21b
It is detachably connected with inlet tube 9 and the outlet 11 for circulated gases with 21c.Entering for circulated gases
Mouthful pipe 9, horizontal channel 8b, 8c of bottom 7, and outlet 11 arranges on the same axis.
Swagelok company, Hi-Lok company, the counterpart of DK-Lok company can be used or other are similar
Fixed system is as pipe press fit part 21a, 21b and 21c.
The upper end 5 of flow model expansion chamber 3 is formed, pipe press fit by pipe press fit part 23a and 23b
Part 23a and 23b secures the discharge-channel 13 for gas to be analyzed, and discharge-channel 13 is by its inlet port
15 connect with the upper part in the space of expansion chamber 3, thus are arranged by the discharge-channel 13 being used for gas to be analyzed
In expansion chamber 3.In this embodiment, for gas to be analyzed discharge-channel 13 length self also
Inessential, it is important that to be immediately adjacent to for the position of the inlet port 15 of the discharge-channel 13 of gas to be analyzed
End 5, such as, is arranged to the 10% of upper end wall away from expansion chamber 3 height less than the interior space of expansion chamber 3,
Preferably no more than 5%.Inlet port 15 for the discharge-channel 13 of gas to be analyzed is arranged on cylindrical heavy
On the axis of symmetry of fall room 3, this is due to the fact that, i.e. at the inwall of the upper part being deposited in expansion chamber 3
On aerosol or solid pollutant can not arrive into mouth 15, its reason is that pollutant are by gas to be analyzed
The air-flow 14 (as shown in the vertical arrow in Fig. 1) being directed upwards towards is taken away.
For the outlet 17 of the gas to be analyzed upper end by pipe press fit part 23c Yu flow model expansion chamber 3
5 are detachably connected.According to the embodiments of the present invention shown in Fig. 1, for the outlet of gas to be analyzed
17 and one-body molded for the exhaust passage 13 of gas to be analyzed.But, they can be coaxially to be connected with each other
Individual component.
Inlet tube 9, outlet 11 and the outlet 17 for gas to be analyzed for circulated gases can have
There are regulation valve and/or piezometer and/or there is the spinner flowmeter of flow rate adjustment device (not shown).Use
These devices, can set up the circulation airflow of the outlet 11 for circulated gases according to the filter of invention
Intensity and for gas to be analyzed outlet 17 circulation airflow intensity between 10 to 50 scope
In, the mutual relation in the range of preferably 20 to 40.Flow through the gas of the outlet 11 for circulated gases
The flow velocity of body can flow through the outlet for gas to be analyzed in the range of 5～10 Standard Liters per Minute simultaneously
The flow velocity of the gas of 17 can be in the range of 0.2～0.5 Standard Liters per Minute, and this can form root in the following manner
Filter according to the present invention: the air-flow of the gas to be analyzed rise time in flow model expansion chamber 3 can be conditioned
In the range of 2 to 10 minutes, preferably 4 to 6 minutes.
Fig. 2 exemplarily shows second embodiment of the present invention, and it is with the embodiment shown in Fig. 1 not
Be the setting of the discharge-channel 13 for gas to be analyzed with part, this discharge-channel 13 sinks along flow model
The whole length of fall room 3 extends, and extend through bottom 7 until with the outlet for gas to be analyzed
17 are connected, and outlet 17 is connected with bottom 7 by pipe press fit part 25.In this embodiment,
Discharge-channel 13 for gas to be analyzed forms as one with the outlet 17 for gas to be analyzed.As
Alternatively, the two element is formed as the composite members (not shown) arranged coaxially with each other.Flow model sinks
The upper end 7 of fall room 3 is formed as blind flange 27, thus the hermetic seal upper part of expansion chamber 3.Discharge
Passage 13 is for cylinder and is arranged to coaxial with flow model deposit cavity 3.
The internal diameter of passage 8a, 8b, 8c, and the basis of relations of they internal diameters with expansion chamber 3 and the present invention
The embodiment of Fig. 1 is identical.
Below, shown inertia-gravity filter is used to treat to remove to be included according to the method according to the invention
The pollutant of the disperse phase in analysis gas.Through inlet tube 9 be analysed to gas primary air 10 (see
Fig. 1, Fig. 2) feed in inertia-gravity filter 1 molten to reduce the solid in gas to be analyzed and liquid gas
The content of glue stain thing.A part for the primary air 10 of the gas being analysed to is withdrawn as gas to be analyzed
The air-flow 14 of body, this air-flow 14 enters with upwardly direction and is vertically arranged relative to the direction of motion of primary air 10
Flow model expansion chamber 3 in, the most remaining air-flow defines the air-flow 12 of circulated gases, and this air-flow 12 exists
The side identical with the primary air 10 of gas to be analyzed continues up flowing.Air-flow 14 at gas to be analyzed
After entering flow model expansion chamber 3 a few minutes, such as, between 2 to 10 minutes, preferably 4 to 6 points
Between clock, this time is that the position that the volume 14 of gas to be analyzed shunts from primary air 10 flow to for treating
Time needed for the inlet port 15 of the discharge-channel 13 of the gas analyzed, by the discharge for gas to be analyzed
The air-flow 14 of the gas that the inlet port 15 of passage 13 is analysed to takes from the spatially part taking out expansion chamber 3
Go out, for analysis afterwards.The current rate of circulated gases is strong with the air-flow of the air-flow 14 of gas to be analyzed
Mutual relation between degree between 10 to 50 in the range of, between preferably 20 to 40 in the range of.Whole
Individual method is for continuously to implement.
Claims (12)
1. an inertia-gravity filter for the dispersion phase in the gas that removing is to be analyzed, including:
The flow model expansion chamber (3) arranged vertically, it has upper end (5) and bottom (7)；
Inlet tube (9), it is connected with the described bottom (7) of described expansion chamber (3)；
For the outlet (11) of circulated gases, it is connected with described inlet tube (9)；
For the discharge-channel (13) of gas to be analyzed, with the described discharge-channel for gas to be analyzed
(13) outlet for gas to be analyzed (17) that outlet is connected,
It is characterized in that,
Discharge-channel (13) for gas to be analyzed passes through its inlet port (15) and described expansion chamber (3)
The upper part in space be connected,
The bottom (7) of described expansion chamber (3) is configured to T-piece, its flow channel (8a, 8b, 8c)
There is circular cross-section,
The described passage (8a) of described bottom (7) is vertically arranged and phase direct with described expansion chamber (3)
Even, and it has an internal diameter approximately equivalent with the internal diameter of described expansion chamber (3), two horizontal channels (8b,
8c) it is arranged to coaxially to each other and is perpendicular to the described passage (8a) of described bottom (7),
Described inlet tube (9) and described outlet (11) for circulated gases are formed as having same inner diameter,
Described internal diameter is less than or equal to the internal diameter of described flow model expansion chamber (3),
Wherein, described filter (1) is suitable to make the circulation gas of the described outlet (11) for circulated gases
Stream intensity and the described outlet for gas to be analyzed (17) circulation airflow intensity between mutual
Pass ties up in the range of between 10 to 50.
Filter the most according to claim 1, it is characterised in that described for gas to be analyzed
Discharge-channel (13) is vertically situated in described expansion chamber (3), wherein, described for gas to be analyzed
The outlet of the discharge-channel (13) of body is arranged in the bottom (7) of described expansion chamber (3).
Filter the most according to claim 2, it is characterised in that described for gas to be analyzed
Discharge-channel (13) and the described exhaustor for gas to be analyzed (17) formula that forms as one pipeline,
And it is connected to removedly on the described bottom (7) of described expansion chamber (3), wherein said expansion chamber (3)
Realize with the form of pipe press fit part with extraneous gas-tight seal.
4. according to the filter described in Claims 2 or 3, it is characterised in that the side of described expansion chamber (3)
Wall and the described discharge-channel for gas to be analyzed (13) have constant cross section profile.
5. according to the filter according to any one of claim 2 to 4, it is characterised in that described expansion chamber
And the described discharge-channel for gas to be analyzed (13) is for being coaxially disposed (3).
6. according to the filter according to any one of the claims, it is characterised in that described for circulating
The inlet tube (9) of gas and outlet (11) are for being coaxially disposed.
7. according to the filter according to any one of the claims, it is characterised in that described expansion chamber (3)
Upper end (5) for close.
8. according to the filter according to any one of the claims, it is characterised in that described filter sets
Counting into the time that the air-flow of the gas being analysed to rises in described flow model expansion chamber (3) controls to arrive 2
In the range of 10 minutes, preferably 4 to 6 minutes.
Filter the most according to claim 1, it is characterised in that the described entrance for circulated gases
The internal diameter of pipe (9) and outlet (11) is 20% to the 80% of the internal diameter of described flow model expansion chamber (3).
10. a method for the pollutant of the disperse phase during removing is included in gas to be analyzed, wherein will
The primary air (10) of gas to be analyzed feeds in inertia-gravity filter (1) to reduce gas to be analyzed
In solid and the content of liquid aerosol contaminants, wherein,
A (), in order to tentatively clean, extracts a part for primary air (10) for gas to be analyzed as to be analyzed
The air-flow (14) of gas, described air-flow (14) enters the flow model being vertically arranged in an upward direction and sinks
In fall room (3), the most remaining air-flow forms the air-flow (12) of circulated gases, wherein by vertically to
On direction in destroy the direction of motion being ready to use in primary air (10) with post analysis, be included in described primary air
(10) part for the dispersion phase being made up of solid and liquid aerosol contaminants in due to inertia along with institute
The air-flow (12) stating circulated gases continues motion,
B the rate of climb of the air-flow (14) of the gas to be analyzed after tentatively cleaning is wherein chosen as low by ()
In the solid treated in the air-flow (14) remaining at gas to be analyzed removed from gas and aerosol particle
Sedimentation velocity, thus make intensity and the gas of described gas to be analyzed of the air-flow (12) of described circulated gases
Stream (14) intensity between mutual relation between 10 to 50 in the range of,
C () upper part from the space of described expansion chamber (3) is taken out the air-flow (14) of gas to be analyzed and is used
In analysis subsequently.
11. methods according to claim 10, it is characterised in that described method is carried out in a continuous mode.
12. according to the method described in claim 10 or 11, it is characterised in that described air-flow to be analyzed (14)
In the range of described flow model expansion chamber (3) the middle time risen is between 2 to 10 minutes, preferably exist
In the range of between 4 to 6 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146298.1A CN106153429A (en) | 2015-03-30 | 2015-03-30 | Remove the method for the dispersion phase in gas to be analyzed and implement the device of the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146298.1A CN106153429A (en) | 2015-03-30 | 2015-03-30 | Remove the method for the dispersion phase in gas to be analyzed and implement the device of the method |
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| Publication Number | Publication Date |
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| CN106153429A true CN106153429A (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510146298.1A Pending CN106153429A (en) | 2015-03-30 | 2015-03-30 | Remove the method for the dispersion phase in gas to be analyzed and implement the device of the method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113476961A (en) * | 2021-07-12 | 2021-10-08 | 四川泰兰德科技有限公司 | A novel gravity filter for analytical instrument |
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