CN209423361U - A kind of dilution device - Google Patents
A kind of dilution device Download PDFInfo
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- CN209423361U CN209423361U CN201822254284.3U CN201822254284U CN209423361U CN 209423361 U CN209423361 U CN 209423361U CN 201822254284 U CN201822254284 U CN 201822254284U CN 209423361 U CN209423361 U CN 209423361U
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- dilution
- branch pipe
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- flow amount
- amount controller
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Abstract
The utility model relates to a kind of dilution devices, including mixer, the first dilution air flow amount controller, the second dilution air flow amount controller, third dilution air flow amount controller, Standard Gases flow controller；Dilution chamber is provided in the mixer, air inlet and gas outlet are provided on the mixer, the air inlet is connected with the dilution chamber with gas outlet, the Standard Gases flow controller is connect by tee tube with the air inlet on the mixer with the first dilution air flow amount controller, the second dilution air flow amount controller is connected by the first output channel with the dilution chamber, and the third dilution air flow amount controller is connected by the second output channel with the dilution chamber.The present apparatus increases Multi-stage dilution gas by the first dilution air flow amount controller, the second dilution air flow amount controller, third dilution air flow amount controller and is mixed with Standard Gases, increase the disturbance in gas flow, improves the mixability of calibrating gas and carrier gas molecule.
Description
Technical field
The utility model relates to environment monitoring fields, and in particular to a kind of dilution device.
Background technique
The calibrating gas with middle various concentration is often used to on-line monitoring equipment progress calibration test in environment monitoring field.
The common output for realizing various concentration standard gas by dilution device using a kind of calibrating gas of high concentration in real work.It is dilute
The principle of release device is exported after mixing using the pure carrier gas of a high flow capacity, the calibrating gas of a low discharge,
The ratio of high and low flow is controlled, and then reaches the output of various concentration standard gas.Such as to export the low concentration gas of 1000 times of dilution
Body, setting standard gas export 5ml, and setting carrier gas exports 4995ml, then the extension rate of output gas is (4995+5)/5=
1000 times.Assuming that standard gas concentration is 5ppm, then output gas concentration is 0.005ppm.Two kinds of gases enter after being converged by threeway
Static mixer mixing.
It is to include multi-disc to the cavity of slotting sheet metal in static mixer structure.Its working mechanism is to utilize to be fixed in pipe
Mixed cell (sheet metal of inhibition) change flow regime of the gas in pipe, well divided between gas with various with reaching
It dissipates and well-mixed purpose.However existing dilution device may generate small flow under so high extension rate
Standard gas mixes non-uniform problem in big flow carrier gas.Cause to export standard gas uneven concentration, and then calibration measurement is caused to miss
Difference.
Utility model content
The purpose of this utility model is that improving the deficiency in the presence of the prior art, a kind of dilution device is provided.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of dilution device, including mixer, the first dilution air flow amount controller, the second dilution air flow amount controller,
Three dilution air flow amount controllers, Standard Gases flow controller；It is provided with dilution chamber in the mixer, is set on the mixer
It is equipped with air inlet and gas outlet, the air inlet is connected with the dilution chamber with gas outlet, the standard throughput control
Device processed is connect by tee tube with the air inlet on the mixer with the first dilution air flow amount controller, second carrier gas
Flow controller is connected by the first output channel with the dilution chamber, and the third dilution air flow amount controller passes through the
Two output channels are connected with the dilution chamber.
Increased by the first dilution air flow amount controller, the second dilution air flow amount controller, third dilution air flow amount controller
It adds a grade carrier gas to be mixed with Standard Gases, increases the disturbance in gas flow, improve calibrating gas and carrier gas point
The mixing uniformity of son.
In further embodiment, several first branch pipes, first branch pipe are provided on first output channel
Head end be inserted into the dilution chamber, the tail end of first branch pipe is connected with first output channel；Described second is defeated
Several second branch pipes are provided on pipeline out, the head end of second branch pipe is inserted into the dilution chamber, second branch pipe
Tail end be connected with second output channel, the head end of first branch pipe and the head end of the second branch pipe are provided with spray
Mouth.By being provided with several first branch pipes on the first output channel, be provided on second output channel several second
Branch pipe, each branch pipe spray diluent gas, increase the disturbance in gas flow, improve calibrating gas and carrier gas molecule
Mixing uniformity.
In further embodiment, several upper spacers and several lower clapboards are provided in the dilution chamber room, it is described
Upper spacer be set to it is described dilution chamber upper plate, the lower clapboard be set to it is described dilution chamber lower plate, it is described on
In along air inlet to gas outlet direction, successively cross-circulation is arranged in the dilution chamber room, formation mixing is logical for partition and lower clapboard
Road；Gas conveying direction is opposite with the gas flow direction that the nozzle exports in the hybrid channel.By diluent gas with
Calibrating gas conveying direction further increases the disturbance in gas flow on the contrary to generate convection current, improves calibrating gas
With the mixing uniformity of carrier gas molecule.
In further embodiment, the nozzle of the nozzle of first branch pipe and the second branch pipe is towards opposed.In difference
Direction and calibrating gas formed convection current, improve calibrating gas and carrier gas molecule mixing uniformity.
In further embodiment, first branch pipe is separated in each upper spacer and the lateral clearance for the lower clapboard that is connected
Or second branch pipe, first branch pipe and the second branch pipe are successively reported to the leadship after accomplishing a task cycle arrangement along air inlet to gas outlet.
In further embodiment, the first dilution air flow amount controller, the second dilution air flow amount controller, third are dilute
Flow-rate ratio in outgassing flow controller is 2:1:1.Reduce the response time.
In further embodiment, the outer wall of first branch pipe and the outer wall of the second branch pipe are provided with several outlets
Hole.When mixed gas continues flowing, mixing contact with stomata output gas and disturbs and achievees the purpose that fine dispersion.
In further embodiment, first output channel and the second output channel are inserted into the mixer, and institute
It states the first output channel and the second output channel passes through fluorubber material and the mixer outer wall is tightly connected.Improve dress
The air-tightness set.
Compared with prior art, the utility model has the following beneficial effects:
1, the present apparatus passes through the first dilution air flow amount controller, the second dilution air flow amount controller, third carrier gas flow
Controller increase Multi-stage dilution gas mixed with Standard Gases, increase gas flow in disturbance, improve calibrating gas and
The mixing uniformity of carrier gas molecule.
2, it by being provided with several first branch pipes on the first output channel, is provided on second output channel several
A second branch pipe, each branch pipe spray diluent gas, increase the disturbance in gas flow, improve calibrating gas and dilution
The mixing uniformity of gas molecule.
3, opposite with calibrating gas conveying direction to generate convection current by diluent gas, it further increases gas and flows over
Disturbance in journey improves the mixing uniformity of calibrating gas and carrier gas molecule.
4, stomata is provided on each branch pipe of the present apparatus to connect when mixed gas continues flowing with stomata output gas
Touching, which is mixed and disturbed, achievees the purpose that fine dispersion.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of dilution device provided by the embodiment of the utility model；
Fig. 2 is the schematic diagram of nozzle and stomata in a kind of branch pipe of dilution device provided by the embodiment of the utility model；
Description of symbols in figure
Mixer 1, the first dilution air flow amount controller 2, the second dilution air flow amount controller 3, third carrier gas flow control
Device 4 processed, Standard Gases flow controller 5, dilution chamber 6, air inlet 7, gas outlet 8, tee tube 9, the first output channel 10, first
Branch pipe 11, the second output channel 12, the second branch pipe 13, nozzle 14, upper spacer 15, lower clapboard 16, hybrid channel 17, stomata 18.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
Fig. 1 or 2 is please referred to, the present embodiment schematically discloses a kind of dilution device, including mixer 1, first dilutes
Air-flow amount controller 2, the second dilution air flow amount controller 3, third dilution air flow amount controller 4, Standard Gases flow controller 5；
It is provided with dilution chamber 6 in the mixer 1, is provided with air inlet 7 and gas outlet 8, the air inlet 7 on the mixer 1
It is connected with the dilution chamber 6 with gas outlet 8,2 controller of the Standard Gases flow controller 5 and the first carrier gas flow
It is connect by tee tube 9 with the air inlet 7 on the mixer 1,3 controller of the second carrier gas flow passes through the first output
Pipeline 10 is connected with the dilution chamber 6, the third dilution air flow amount controller 4 by the second output channel 12 with it is described
Dilution chamber 6 is connected.
In the present solution, the first dilution air flow amount controller 2, the second dilution air flow amount controller 3, third carrier gas flow
Controller 4 receives diluent gas and controls diluent gas and conveys to mixer 1, and standard dilution air-flow amount controller 5 receives standard
Gas, and control calibrating gas and conveyed to mixer 1, at first, the Standard Gases flow controller 5 and the first carrier gas flow
Controller 2 is connect by tee tube 9 with the air inlet on the mixer 1, the carrier gas in the first dilution air flow amount controller 2
Body is mixed with the calibrating gas in Standard Gases flow controller 5, is delivered to and is diluted chamber 6, in the first dilution air flow amount controller 2
Diluent gas and Standard Gases flow controller 5 in calibrating gas dilute chamber continues to mix during, second dilution
Diluent gas conveying dilution chamber 6 in air-flow amount controller 3 and the third dilution air flow amount controller 4 is more by increasing
Grade carrier gas is mixed with Standard Gases, increases the disturbance in gas flow, improves calibrating gas and carrier gas molecule
Mixing uniformity.It is mixed by the multistage contact to flow disturbance, large area repeatedly, it is dilute to be finally reached uniformly mixed static state
Release effect.
In further embodiment, it is provided with several first branch pipes 11 on first output channel 10, described first
The head end of branch pipe 11 is inserted into the dilution chamber 6, and the tail end of first branch pipe 11 is connected with first output channel 10；
Several second branch pipes 13 are provided on second output channel 12, the head end of second branch pipe 13 is inserted into the dilution chamber
Room 6, the tail end of second branch pipe 13 are connected with second output channel 12, the head end and second of first branch pipe 11
The head end of branch pipe 13 is provided with nozzle 14.By being provided with several the first branch pipes 11 on the first output channel 10, described
Several second branch pipes 13 are provided on two output channels 12, each branch pipe sprays diluent gas, increases gas flow
In disturbance, improve calibrating gas and carrier gas molecule mixing uniformity.Meanwhile the nozzle 14 of first branch pipe 11 with
The nozzle 14 of second branch pipe 12 is towards opposed.Convection current is formed in different directions and calibrating gas, improves calibrating gas again
With the mixing uniformity of carrier gas molecule.
Further, be provided with several upper spacers 15 and several lower clapboards 16 in the dilution chamber 6, it is described on every
Plate 15 is set to the upper plate of the dilution chamber 6, and the lower clapboard 16 is set to the lower plate of the dilution chamber 6, described
Upper spacer 15 and lower clapboard 16 are in along air inlet to gas outlet direction, successively cross-circulation is arranged in the dilution chamber 6, formation
Hybrid channel 17；Gas conveying direction is opposite with the gas flow direction that the nozzle 14 exports in the hybrid channel 17.It is logical
It is opposite with calibrating gas conveying direction to generating convection current to cross diluent gas, further increases the disturbance in gas flow,
Improve the mixing uniformity of calibrating gas and carrier gas molecule.
Still further, being separated with first branch pipe 11 in each upper spacer 15 and the lateral clearance for the lower clapboard 16 that is connected
Or second branch pipe 13, first branch pipe 11 and the second branch pipe 13 are successively reported to the leadship after accomplishing a task cycle arrangement along air inlet to gas outlet.
It is readily comprehensible, the first dilution air flow amount controller 2, the second dilution air flow amount controller 3, third carrier gas flow
Diluent gas in controller 4 and the calibrating gas contact incorporation time in Standard Gases flow controller are successively different, in order to drop
Low-response time, the first dilution air flow amount controller 2, the second dilution air flow amount controller 3, third carrier gas flow control
Flow-rate ratio in device 4 is 2:1:1.Of course, not limiting the first carrier gas flow control in the case where guaranteeing the uniform situation of gas mixing
Device 2 processed, the second dilution air flow amount controller 3, the flow-rate ratio in third dilution air flow amount controller 4.
In further embodiment, the outer wall of the outer wall of first branch pipe 11 and the second branch pipe 13 is provided with several
Venthole 18.When mixed gas continues flowing, is contacted with 18 output gas of stomata and mix and disturb, reached fine dispersion
Purpose.
In the present embodiment, first output channel 10 and the second output channel 12 are inserted into the mixer 1, and institute
The first output channel 10 and the second output channel 12 is stated to be tightly connected by fluorubber material and 1 outer wall of mixer.It mentions
The high air-tightness of device.It is readily comprehensible, in the case where guaranteeing device air-tightness, do not limit first output channel with
The sealing material of second output channel and mixer outer wall, can also be using other sealing techniques in the prior art.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein.It should not treat any reference in the claims as limiting related right
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of dilution device, which is characterized in that including mixer, the first dilution air flow amount controller, the second carrier gas flow
Controller, third dilution air flow amount controller, Standard Gases flow controller；Dilution chamber is provided in the mixer, it is described
Air inlet and gas outlet are provided on mixer, the air inlet is connected with the dilution chamber with gas outlet, the mark
Quasi- air-flow amount controller is connect by tee tube with the air inlet on the mixer with the first dilution air flow amount controller, described
Second dilution air flow amount controller is connected by the first output channel with the dilution chamber, the third carrier gas flow control
Device processed is connected by the second output channel with the dilution chamber.
2. dilution device according to claim 1, which is characterized in that be provided on first output channel several
The head end of one branch pipe, first branch pipe is inserted into the dilution chamber, the tail end of first branch pipe and first efferent duct
Road is connected；Several second branch pipes are provided on second output channel, the head end insertion of second branch pipe is described dilute
Chamber is released, the tail end of second branch pipe is connected with second output channel, the head end of first branch pipe and second
The head end of pipe is provided with nozzle.
3. dilution device according to claim 2, which is characterized in that be provided with several upper spacers in the dilution chamber room
With several lower clapboards, the upper spacer is set to the upper plate of the dilution chamber, and the lower clapboard is set to the dilution
The lower plate of chamber, the upper spacer and lower clapboard are followed in successively intersecting along air inlet to gas outlet direction in the dilution chamber room
Circle permutation forms hybrid channel；The gas flow direction phase that gas conveying direction is exported with the nozzle in the hybrid channel
Instead.
4. dilution device according to claim 2, which is characterized in that the spray of the nozzle and the second branch pipe of first branch pipe
Mouth is towards opposed.
5. dilution device according to claim 3, which is characterized in that the lateral clearance of each upper spacer and the lower clapboard that is connected
In be separated with first branch pipe or the second branch pipe, first branch pipe is successively reported to the leadship after accomplishing a task with the second branch pipe along air inlet to gas outlet
Cycle arrangement.
6. dilution device according to claim 1, which is characterized in that the first dilution air flow amount controller, second dilute
Flow-rate ratio in outgassing flow controller, third dilution air flow amount controller is 2:1:1.
7. dilution device according to claim 2, which is characterized in that the outer wall of first branch pipe and the second branch pipe it is outer
Wall is provided with several ventholes.
8. dilution device according to claim 1, which is characterized in that first output channel and the second output channel are equal
It is inserted into the mixer, and first output channel and the second output channel pass through outside fluorubber material and the mixer
Wall is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822254284.3U CN209423361U (en) | 2018-12-29 | 2018-12-29 | A kind of dilution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822254284.3U CN209423361U (en) | 2018-12-29 | 2018-12-29 | A kind of dilution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209423361U true CN209423361U (en) | 2019-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822254284.3U Active CN209423361U (en) | 2018-12-29 | 2018-12-29 | A kind of dilution device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647235A (en) * | 2018-12-29 | 2019-04-19 | 苏州天蓝分析仪器有限公司 | A kind of dilution device based on gas mixing dilution mode |
| CN112816601A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas dilution device and method based on selection technology |
-
2018
- 2018-12-29 CN CN201822254284.3U patent/CN209423361U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647235A (en) * | 2018-12-29 | 2019-04-19 | 苏州天蓝分析仪器有限公司 | A kind of dilution device based on gas mixing dilution mode |
| CN112816601A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas dilution device and method based on selection technology |
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