CN208406890U - Fixed proportion diluter - Google Patents
Fixed proportion diluter Download PDFInfo
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- CN208406890U CN208406890U CN201820499254.6U CN201820499254U CN208406890U CN 208406890 U CN208406890 U CN 208406890U CN 201820499254 U CN201820499254 U CN 201820499254U CN 208406890 U CN208406890 U CN 208406890U
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- air inlet
- capillary
- diluter
- dilution
- fixed proportion
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Abstract
The utility model discloses a kind of fixed proportion diluters, solves the problems such as diluter dilution ratio is not easy to control, dilution precision is not high, technical solution be include diluter ontology, diluter ontology includes dilution chamber, the first air inlet, the second air inlet and air outlet, first air inlet and the second air inlet are communicated with capillary, and capillary extend into dilution chamber and is connected to dilution chamber.The technical essential can use the throttling action of capillary, guarantees that the pressure of the first air inlet and the second air inlet is equal, to guarantee that the flow of every capillary is roughly the same, and then obtains fixed dilution ratio, and improve dilution precision.
Description
Technical field
The utility model relates to material mixing dilution technology field more particularly to a kind of fixed proportion diluters.It can be used for
Toxicity drug safety evaluation, pesticide acute toxicity sucking experimental study, atmosphere pollution are sucked to animal breath systematic influence
Research etc..
Background technique
Currently, be to suck in the relevant various scientific researches of toxicity, more especially pair human health harmful substance
Research, such as PM2.5, due to that cannot cannot test directly or to the mankind first, thus often to use experimental animal into
Row sucking Exposure Assessment.Therefore, animal exposing device has in industry, agricultural, medicine, environmental pollution and military science research
It is widely applied.China's animal exposing device in the prior art is mainly by systemic exposure and two kinds of head exposure.It is sudden and violent in mouth and nose
Reveal in unit, is all first by the high concentration aerosol dilution of apparatus for aerosol creation generation in pre- in current home products
If after the aerosol of concentration, for mouth and nose exposure experiment.However, after existing dilution equipment is diluted aerosol, it is real
It tests personnel and finds that the concentration of the aerosol after dilution is unstable, and extension rate precision is inadequate, influences experimental result.Therefore, have
Necessity improves on the basis of existing dilution structure, and it is with high accuracy to provide a kind of simple structure, reliability and extension rate
Diluter.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of structure is simple, extension rate
Fixed proportion diluter with high accuracy.
To achieve the above object, the utility model provides following technical solution: a kind of fixed proportion diluter, including dilute
Release device ontology, the diluter ontology includes dilution chamber, the diluter ontology further include be connected with the dilution chamber into
Port and gas outlet, the air inlet include the first air inlet and the second air inlet, first air inlet and described second into
Port is communicated with capillary towards the dilution chamber side, and US book capillary is located in the dilution chamber and is fixedly mounted on
On the diluter ontology.
By using above-mentioned technical proposal, gas is diluted by the first air inlet and enters dilution chamber, diluent gas is by second
Air inlet enters dilution chamber, and two kinds of gases pass through capillary, and there is capillary air-flow to damp and throttling action, on the one hand can be with
The pressure drop of the entire flow path of increase of big multiple, realizes the stability of gas flow, on the other hand can use its throttling action
Guarantee that the flow of each capillary is roughly equal, to obtain high-precision and fixed dilution ratio.
The utility model is further arranged to, and a capillary, second air inlet are communicated at first air inlet
N capillary (N >=2) are communicated at mouthful.
By using above-mentioned technical proposal, two or two or more capillaries are set at the second air inlet, can achieve
The dilution ratio of 1/N changes the quantity of capillary according to need of work and requirement etc., thus to change dilution ratio.
The utility model is further arranged to: capillary fixing piece is removably connected on the diluter ontology, it is described
Capillary is fixedly mounted on the capillary fixing piece.
By using above-mentioned technical proposal, capillary fixing piece is easy for removal and installation, so that capillary is convenient for tearing open
Installation and maintenance and cleaning etc. are unloaded, while facilitating the quantity of change capillary, is operated more convenient.
The utility model is further arranged to: the diluter ontology is equipped with sealing in the end of the air inlet side
End cap.
By using above-mentioned technical proposal, the setting of end cover can make diluter at work in dilution chamber
Good seal performance, the dilution of gas needed for ambient atmos will not enter dilution chamber influence, to improve dilution precision.
The utility model is further arranged to: the length of the capillary at first air inlet and second air inlet
Degree, diameter are all the same.
By using above-mentioned technical proposal, more capillary length, diameter are consistent, so that more capillary both ends is
Pressure of uniting is consistent, so that the gas flow that each pipeline extracts is consistent, evenly distributing for gas flow is further realized, to mention
High gas dilution precision.
The utility model is further arranged to: the N capillary being connected at second air inlet is around second air inlet
The vertical centerline of mouth circumferentially arranges.
By using above-mentioned technical proposal, ensure that by the second air inlet enter gas via each capillary ginseng
Number is consistent, will not generate that reasons produce bigger effect dilution because parameter is inconsistent etc..
The utility model is further arranged to: the diameter of the capillary is 0.5-1mm.
By using above-mentioned technical proposal, the setting of the diameter of capillary, can to avoid capillary because it is too thin and
It is blocked by gas, influences the work of fixed proportion diluter.
Detailed description of the invention
Hereinafter with reference to the accompanying drawings and some specific of the utility model is described in detail in embodiment mode and not restrictive
Embodiment.Identical appended drawing reference denotes same or similar part or part in attached drawing.Those skilled in the art should manage
Solution, these attached drawings are not necessarily to scale drafting.
Fig. 1 is a cross-sectional view of the utility model fixed proportion diluter；
Fig. 2 is the partial enlarged view of another cross-sectional view of the utility model fixed proportion diluter.
Wherein, 1. diluter ontology；2. dilution chamber；3. gas vent；4. first gas import；5. second gas import；
6. capillary；7. end cover；8. capillary fixing piece.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below with reference to Fig. 1 to Fig. 2
The embodiment of the utility model fixed proportion diluter is described further.
A kind of fixed proportion diluter, including diluter ontology 1, the setting of 1 upper end opening of diluter ontology, lower end has been opened
Gas outlet 3 is detachably fixed at upper end opening and is equipped with end cover 7, the upper end opening of end cover 7 and diluter ontology 1
It is adapted.Gas inlet is offered on end cover 7, gas inlet includes the first air inlet 4 and the second air inlet 5, and
Capillary 6 is communicated at first air inlet 4 and the second air inlet 5, capillary 6 is located at the first air inlet 4 and the second air inlet 5
Downside and extend into dilution chamber 2, specific embodiment are as follows: to match with 6 outer diameter of capillary is opened up on end cover 7
One mounting hole reaches at the first air inlet 4 wherein a capillary 6 passes through the first mounting hole, peace is cooperated at the second mounting hole
Equipped with capillary fixing piece 8, capillary fixing piece 8 is fixedly connected with 7 screw of end cover, is offered on capillary fixing piece 8
Multiple the second mounting holes to match with 6 outer diameter of capillary, multiple capillaries 6 and the second mounting hole are corresponded across the second peace
Dress hole reaches at the second air inlet 5.Through-hole can be directly opened up on end cap seal lid 7 directly as the first air inlet 4 and
The air inlet with through-hole can also be fixedly mounted backwards to the side screw of the capillary 6 in end cap seal lid 7 in two air inlets 5
Cylinder, air inlet are provided on inlet cylinder.
Preferably, preferred embodiments of the present invention are the quantity at least two of the capillary 6 at the second mounting hole
Root, more capillaries 6 are arranged around the circumferential column of the second air inlet vertical centerline,
In addition, in order to enable each capillary circulation gas flow it is roughly the same, realize the uniform circulation of gas flow
Distribution, improves the dilution precision of gas, and the diameter and length of more capillaries 6 are all the same, preferably, capillary diameter 0.5-
1mm。
Fixed proportion diluter described in the utility model is diluted gas and is entered by the first air inlet 4 at work
It is entered in dilution chamber 2 by a capillary 6, dilution gas passes into N capillary 6 by the second air inlet 5 and enters
Into dilution chamber 2.Capillary 6 has a throttling action, dilution gas and is diluted with gas flow and capillary in capillary 6
The quadratic power of the pressure difference of 6 upper and lower ends of pipe is directly proportional, when the pressure of the first air inlet 4 and the second air inlet 5 is equal, every hair
The flow of tubule 6 is roughly equal, that is, the gas flow that is diluted entered in dilution chamber 2 is a, then enters dilute in dilution chamber 2
Releasing with gas flow is a*N, and therefore, it is 1/N that dilution ratio, which obtains exact numerical, and the gas after dilution is flowed out via gas outlet 3 again
Diluter ontology 1 is altogether needed for experiment.Along with 2 upper end of dilution chamber is sealed and installed with end cover 7, therefore can be to avoid extraneous miscellaneous
Matter gas enters in dilution chamber 2 dilution for influencing to be diluted gas, and then dilution precision can be improved.Therefore, this is practical new
Fixed proportion diluter described in type, structure is simple, high reliablity, and extension rate precision is high.
Preferably, according to different experiment demands and operating condition requirement, the capillary at the second mounting hole can be changed
The quantity of pipe 6, thus change extension rate, using flexible.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, made any improvements and modifications also should be regarded as this reality
With novel protection scope.
Claims (7)
1. a kind of fixed proportion diluter, including diluter ontology, which is characterized in that the diluter ontology includes dilution chamber,
The diluter ontology further includes the air inlet and air outlet being connected with the dilution chamber, and the air inlet includes the first air inlet
Mouth and the second air inlet, first air inlet and second air inlet are communicated with capillary towards the dilution chamber side
Pipe, and the capillary is located in the dilution chamber and is fixedly mounted on the diluter ontology.
2. fixed proportion diluter according to claim 1, which is characterized in that be communicated with one at first air inlet
Capillary is communicated with N capillary, N >=2 at second air inlet.
3. fixed proportion diluter according to claim 2, which is characterized in that be detachably connected on the diluter ontology
There is capillary fixing piece, the capillary is fixedly mounted on the capillary fixing piece.
4. fixed proportion diluter according to claim 1, which is characterized in that the diluter ontology is in the air inlet
The end of side is equipped with end cover.
5. fixed proportion diluter according to claim 2, which is characterized in that first air inlet and described second into
The length of capillary at port, diameter are all the same.
6. fixed proportion diluter according to claim 2, which is characterized in that the N root being connected at second air inlet
Capillary is circumferentially arranged around the vertical centerline of second air inlet.
7. fixed proportion diluter according to claim 1, which is characterized in that the diameter of the capillary is 0.5-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820499254.6U CN208406890U (en) | 2018-04-10 | 2018-04-10 | Fixed proportion diluter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820499254.6U CN208406890U (en) | 2018-04-10 | 2018-04-10 | Fixed proportion diluter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208406890U true CN208406890U (en) | 2019-01-22 |
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ID=65119474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820499254.6U Active CN208406890U (en) | 2018-04-10 | 2018-04-10 | Fixed proportion diluter |
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| Country | Link |
|---|---|
| CN (1) | CN208406890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354750A (en) * | 2018-04-10 | 2019-10-22 | 北京慧荣和科技有限公司 | Fixed proportion diluter |
-
2018
- 2018-04-10 CN CN201820499254.6U patent/CN208406890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354750A (en) * | 2018-04-10 | 2019-10-22 | 北京慧荣和科技有限公司 | Fixed proportion diluter |
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