CN109854956A - A kind of sampling high pressure gas diffuser - Google Patents
A kind of sampling high pressure gas diffuser Download PDFInfo
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- CN109854956A CN109854956A CN201811634837.6A CN201811634837A CN109854956A CN 109854956 A CN109854956 A CN 109854956A CN 201811634837 A CN201811634837 A CN 201811634837A CN 109854956 A CN109854956 A CN 109854956A
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- pressure gas
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- 238000005070 sampling Methods 0.000 title claims abstract description 23
- 230000006837 decompression Effects 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 7
- 230000008021 deposition Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of sampling high pressure gas diffusers, diffuser includes connecting for the suction nozzle of high pressure gas entrance, with counter for introducing gas into the outlet nozzle of counter, the decompression flow control mechanism being connected between suction nozzle and outlet nozzle, in-house the second cavity for being formed with the first cavity, being connected to setting positioned at the first cavity peripheral side and with the first cavity of decompression flow control is provided with the gas vent in decompression flow control mechanism being used to for the second cavity being in communication with the outside, and suction nozzle, outlet nozzle are respectively communicated in the correspondence two sides of the first cavity；Diffuser of the invention can ensure to be converted to high pressure or high concentrations of gas characteristic low with air pressure, that flow is steady, each sky intracavity gas flowing is unobstructed, gas mixing is full and uniform, few particles cavity chamber internal deposition so that different-grain diameter particle have preferable consistency.
Description
Technical field
The present invention relates to a kind of sampling high pressure gas diffusers.
Background technique
Currently, the aerosols such as high concentration dust particle or mist of oil are generally by adding certain dilution ratio in counter upstream
Diluter is detected again, or is reached by controlling tested aerosol and sending out spray amount and be mixed into clean gas flow with air velocity
It is sampled again to certain dilution ratio.But if micro- high pressure gas or high pressure gas are directly adopted using counter
Sample, the gas of high pressure then can cause to impact to counter, damage counter, and also can not accurately measure.In the prior art, it needs
Micro- high pressure gas or high pressure gas are depressured in advance, in this way, just to operate sufficiently complex, trouble, and are unfavorable for cost
Control.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a kind of sampling high pressure gas to expand
Dissipate device.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:
A kind of sampling high pressure gas diffuser, diffuser include connecting for the suction nozzle of high pressure gas entrance, with counter
For introducing gas into the outlet nozzle of counter, the decompression flow control mechanism being connected between suction nozzle and outlet nozzle, decompression control
It flows in-house the second cavity for being formed with the first cavity, being connected to setting positioned at the first cavity peripheral side and with the first cavity, open
It is located in decompression flow control mechanism for gas vent that the second cavity is in communication with the outside, suction nozzle, outlet nozzle are respectively communicated with the
The correspondence two sides of one cavity.
Preferably, decompression flow control machine include one end be mutually butted connection the first cylinder and the second cylinder, respectively with the
The inner circumferential of the third cylinder of one cylinder and the connection of the second cylinder, the first cylinder and the second cylinder is enclosed the first cavity, third
The inner circumferential of cylinder and periphery a part of the first cylinder and the second cylinder are enclosed the second cavity, the first cylinder and suction nozzle pair
It connects, the second cylinder is docked with outlet nozzle, and gas vent is provided on third cylinder.
Preferably, the second cylinder includes the first connector and the second connector being mutually fixedly connected, the first connector along
Gas flow direction linear extension, the second connector extend outside and bend setting；The free end of first connector and first
Cylinder connection, the bending segment of the second connector are connect with third cylinder.
Preferably, multiple ventholes are offered with the week of the first connector, the first cavity and the second cavity pass through multiple
Venthole connection.
Preferably, venthole is provided with the side far from the first cylinder of the first connector.That is, venthole is by the first cavity
Distal end (far from suction nozzle one end) be connected to the second cavity, allow gas to reach circulation and mix diffusion.
Preferably, the junction of suction nozzle and the first cylinder, the junction of outlet nozzle and the second cylinder, third cylinder and
The junction of the junction of one cylinder, third cylinder and the second cylinder passes through sealing ring and is tightly connected.
Preferably, the first air inlet and the second air inlet being connected, the first air inlet and the external world are offered in suction nozzle
Connection, the second air inlet is connected to the first cavity, the internal diameter of the internal diameter of the first air inlet less than the second air inlet.
Preferably, the first venthole and the second venthole being connected, the first venthole and outside are offered in outlet nozzle
Counter connection, the second venthole is connected to the first cavity, the internal diameter of the internal diameter of the first venthole less than the second venthole.
Preferably, internal diameter of the internal diameter of the first air inlet less than the first venthole.That is, the air inlet of diffuser compares gas outlet
It is small, it is conducive to form negative pressure at the first air inlet, to avoid gas backflow.
Preferably, outlet nozzle includes being plugged in the insertion body of the first cavity inside and positioned at the first cavity outside and counter
The butt joint body of docking, the free end of insertion body extend to the medium position of the first cavity, and the first venthole is formed in butt joint body
Inner circumferential, the second venthole are formed in insertion body inner circumferential.
Due to the implementation of above technical scheme, the invention has the following advantages over the prior art:
Sampling of the invention high pressure gas diffuser, before counter sampling, high pressure or high concentrations of gas by suction nozzle into
Enter mixing in the first cavity of the decompression flow control mechanism of diffuser, diffusion, decompression, after be adjusted to the pressure of suitable counter sampling
Power and flow, and during this, extra gas enters the second cavity from the first cavity, is then discharged through gas vent；This
The diffuser of invention can ensure to be converted to high pressure or high concentrations of gas characteristic low with air pressure, that flow is steady, in each cavity
Gas flowing it is unobstructed, gas mixing is full and uniform, few particles cavity chamber internal deposition so that different-grain diameter particle have
There is preferable consistency；In addition, through the invention diffuser it is integrally-built design and suction nozzle, outlet nozzle and each cavity position
Relational design is set, (the first air inlet) forms negative pressure at the air inlet front end of suction nozzle, can effectively prevent entering the first hole sky
The phenomenon that gas of chamber is flow backwards by the air inlet of suction nozzle.The present invention also have it is small in size, it is light-weight, facilitate installation operation etc.
Advantage.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion after the blowing of each component of diffuser of the invention；
Fig. 2 is the schematic diagram of the section structure of diffuser of the invention；
Wherein: 1, suction nozzle；11, the first air inlet；12, the second air inlet；2, the first cylinder；3, third cylinder；30, it is vented
Hole；41, the first connector；410, venthole；42, the second connector；51, butt joint body；510, the first venthole；52, insertion body；
520, the second venthole；100, sealing ring；Q1, the first cavity；Q2, the second cavity.
Specific embodiment
The present invention will be further described in detail with specific embodiment with reference to the accompanying drawing.
As depicted in figs. 1 and 2, a kind of sampling high pressure gas diffuser, diffuser includes entering for high pressure gas
Suction nozzle 1 is connect for introducing gas into the outlet nozzle of counter, being connected between suction nozzle 1 and outlet nozzle with counter
Decompression flow control mechanism, decompression flow control is in-house to be formed with the first cavity q1, is located at the first peripheral side cavity q1 and with first
Second cavity q2 of cavity q1 connection setting, it is provided with the row in decompression flow control mechanism being used to for the second cavity q2 being in communication with the outside
Stomata 30, suction nozzle 1, outlet nozzle are respectively communicated in the correspondence two sides of the first cavity q1.
Specifically, decompression flow control machine include one end be mutually butted connection the first cylinder 2 and the second cylinder, respectively with the
The inner circumferential of the third cylinder 3 that one cylinder 2 is connected with the second cylinder, the first cylinder 2 and the second cylinder is enclosed the first cavity q1,
The inner circumferential of third cylinder 3 and periphery a part of the first cylinder 2 and the second cylinder are enclosed the second cavity q2, the first cylinder 2
It is docked with suction nozzle 1, the second cylinder is docked with outlet nozzle, and gas vent 30 is provided on third cylinder 3.In addition, the second cylinder packet
The first connector 41 and the second connector 42 being mutually fixedly connected are included, the first connector 41 prolongs along gas flow direction straight line
It stretches, the second connector 42 extends outside and bends setting；The free end of first connector 41 is connect with the first cylinder 2, and second
The bending segment of connector 42 is connect with third cylinder 3.16 ventholes 410 are offered with the week of first connector 41, the
One cavity q1 and the second cavity q2 is connected to by 16 ventholes 410.16 ventholes 410 are provided with the first connector 41
Far from the first cylinder 2 side.That is, venthole 410 is by the distal end of the first cavity q1 (one end far from suction nozzle 1) and second
Cavity q2 connection allows gas to enough circulations and mixes diffusion.
In this example, the junction of suction nozzle 1 and the first cylinder 2, the junction of outlet nozzle and the second cylinder, third cylinder 3
Pass through sealing ring 100 with the junction of the junction of the first cylinder 2, third cylinder 3 and the second cylinder to be tightly connected.
Further, the first air inlet 11 and the second air inlet 12 being connected, the first air inlet are offered in suction nozzle 1
11 are in communication with the outside, and the second air inlet 12 is connected to the first cavity q1, and the internal diameter of the first air inlet 11 is less than the second air inlet 12
Internal diameter.The first venthole 510 and the second venthole 520 being connected, the first venthole 510 and outside are offered in outlet nozzle
Counter connection, the second venthole 520 are connected to the first cavity q1, and the internal diameter of the first venthole 510 is less than the second venthole 520
Internal diameter.In this example, the internal diameter of the internal diameter of the first air inlet 11 less than the first venthole 510.That is, the air inlet ratio of diffuser goes out
Port is small, is conducive to form negative pressure at the first air inlet, to avoid gas backflow.
In addition, outlet nozzle includes being plugged in the insertion body 52 inside the first cavity q1 and being located at outside the first cavity q1 and meter
The butt joint body 51 of number device docking, the free end of insertion body 52 extend to the medium position of the first cavity, 510 shape of the first venthole
At in 51 inner circumferential of butt joint body, the second venthole 520 is formed in 52 inner circumferential of insertion body.That is, the insertion body 52 of outlet nozzle is to be set in
41 inner circumferential of the first connector of second cylinder.
In conclusion sampling of the invention high pressure gas diffuser, before counter sampling, high pressure or high concentration gas
Body is entered mixing in the first cavity of the decompression flow control mechanism of diffuser, diffusion, decompression by suction nozzle, after be adjusted to suitable meter
The pressure and flow of number device sampling, and during this, extra gas enters the second cavity from the first cavity, then through arranging
Stomata discharge；Diffuser of the invention can ensure to be converted to high pressure or high concentrations of gas spy low with air pressure, that flow is steady
Property, it is each sky intracavity gas flowing it is unobstructed, gas mixing is full and uniform, few particles cavity chamber internal deposition so that not
There is preferable consistency with particle；In addition, through the invention diffuser it is integrally-built design and suction nozzle, outlet nozzle
It is designed with the positional relationship of each cavity, (the first air inlet) forms negative pressure at the air inlet front end of suction nozzle, can effectively prevent
The phenomenon that being flow backwards into the gas of the first hole cavity by the air inlet of suction nozzle.The present invention also has small in size, light-weight, side
Just the advantages that installation operation.
The present invention is described in detail above, its object is to allow the personage for being familiar with this field technology that can understand this
The content of invention is simultaneously implemented, and it is not intended to limit the scope of the present invention, all Spirit Essence institutes according to the present invention
The equivalent change or modification of work, should be covered by the scope of protection of the present invention.
Claims (10)
1. it is a kind of sampling use high pressure gas diffuser, it is characterised in that: the diffuser include for high pressure gas enter into
Gas nozzle is connect for introducing gas into the outlet nozzle of the counter, being connected to the suction nozzle and outlet nozzle with counter
Between decompression flow control mechanism, the decompression flow control is in-house to be formed with the first cavity, is located at first cavity peripheral side
And it is connected to the second cavity of setting with first cavity, is provided in the decompression flow control mechanism and is used for second cavity
The gas vent being in communication with the outside, the suction nozzle, outlet nozzle are respectively communicated in the correspondence two sides of first cavity.
2. sampling high pressure gas diffuser according to claim 1, it is characterised in that: the decompression flow control machine includes one
End is mutually butted the first cylinder and the second cylinder, the third cylinder that connect respectively with first cylinder and the second cylinder of connection
The inner circumferential of body, first cylinder and the second cylinder is enclosed first cavity, the inner circumferential of the third cylinder with it is described
Periphery a part of first cylinder and the second cylinder is enclosed second cavity, first cylinder and the suction nozzle pair
It connects, second cylinder is docked with the outlet nozzle, and the gas vent is provided on the third cylinder.
3. sampling high pressure gas diffuser according to claim 1, it is characterised in that: second cylinder includes mutually solid
Surely the first connector and the second connector connected, first connector is along gas flow direction linear extension, and described
Two connectors extend outside and bend setting；The free end of first connector is connect with first cylinder, and described
The bending segment of two connectors is connect with the third cylinder.
4. sampling high pressure gas diffuser according to claim 3, it is characterised in that: the whole body of first connector
On offer multiple ventholes, first cavity and the second cavity pass through multiple ventholes connections.
5. sampling high pressure gas diffuser according to claim 4, it is characterised in that: the venthole is provided with described
The side far from first cylinder of first connector.
6. sampling high pressure gas diffuser according to claim 2, it is characterised in that: the suction nozzle and described first
The junction of cylinder, the junction of the outlet nozzle and the second cylinder, the third cylinder and the first cylinder junction, described
The junction of third cylinder and the second cylinder is tightly connected by sealing ring.
7. sampling high pressure gas diffuser according to claim 1, it is characterised in that: offer phase in the suction nozzle
The first air inlet and the second air inlet of connection, first air inlet is in communication with the outside, second air inlet and described the
The connection of one cavity, the internal diameter of first air inlet are less than the internal diameter of second air inlet.
8. sampling high pressure gas diffuser according to claim 7, it is characterised in that: offer phase in the outlet nozzle
The first venthole and the second venthole of connection, first venthole is connected to external counter, second venthole and
The first cavity connection, the internal diameter of first venthole are less than the internal diameter of second venthole.
9. sampling high pressure gas diffuser according to claim 8, it is characterised in that: the internal diameter of first air inlet
Less than the internal diameter of first venthole.
10. sampling high pressure gas diffuser according to claim 8, it is characterised in that: the outlet nozzle includes plugging
Insertion body in first cavity inside and the butt joint body that is docked outside the first cavity with the counter, the insertion
The free end of body extends to the medium position of first cavity, and first venthole is formed in the butt joint body inner circumferential,
Second venthole is formed in the insertion body inner circumferential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634837.6A CN109854956B (en) | 2018-12-29 | 2018-12-29 | High-pressure gas diffuser for sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634837.6A CN109854956B (en) | 2018-12-29 | 2018-12-29 | High-pressure gas diffuser for sampling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854956A true CN109854956A (en) | 2019-06-07 |
| CN109854956B CN109854956B (en) | 2024-02-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811634837.6A Active CN109854956B (en) | 2018-12-29 | 2018-12-29 | High-pressure gas diffuser for sampling |
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