CN206239930U - A kind of pressure air-foam proportioner - Google Patents
A kind of pressure air-foam proportioner Download PDFInfo
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- CN206239930U CN206239930U CN201621299419.2U CN201621299419U CN206239930U CN 206239930 U CN206239930 U CN 206239930U CN 201621299419 U CN201621299419 U CN 201621299419U CN 206239930 U CN206239930 U CN 206239930U
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- foam
- anemostat
- nozzle
- connecting tube
- diffuser
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Abstract
The utility model provides a kind of pressure air-foam proportioner, including feed pipe, connecting tube and anemostat, water supply branch pipe is provided with the feed pipe, nozzle is provided with the connecting tube, the anemostat is provided with mixing section, diffuser and goes out liquid section, the internal diameter of the diffuser gradually increases from towards one end of the mixing section to another extreme direction, is formed between the nozzle and the anemostat and mixes chamber, and feed liquor branch pipe is additionally provided with the connecting tube.After press water flows into feed pipe, big portion's current direction nozzle therein is mixed in chamber in the presence of nozzle and forms negative pressuren zone；Fraction water enters foam tank through exit branch, pressure difference is formed in foam tank and between mixing chamber, foam solution enters mixing chamber along feed liquor branch pipe, and there is energy exchange in mixing section, enter liquid section through diffuser again, because the internal diameter of diffuser gradually increases, resistance coefficient is relatively small, and flow adjustment range is relatively large and stability is relatively preferable.
Description
Technical field
The utility model is related to a kind of fire-fighting fire-extinguishing equipment, especially a kind of pressure air-foam proportioner.
Background technology
Froth fire extinguishing system has the features such as safe and reliable, economical and practical, fire-fighting efficiency is high, especially to B class fire of putting out a fire to save life and property
It is the current basic mode of putting out a fire to save life and property of oil fire both at home and abroad with more prominent superiority.Foam proportioner is that foam goes out
" nerve center " of fiery system, the quality of its service behaviour is directly connected to the success or failure that froth fire extinguishing system fights a fire.
Foam proportioner in the market mainly has pressure air-foam proportioner, circular pump type foam ratio
The types such as example blender, in-line foam concentrate inducer, wherein pressure air-foam proportioner is further divided into bullet
Spring formula and nozzle-type two types, the pressure air-foam proportioner of spring have larger flow adjustment range,
But stability is relatively poor, and the pressure air-foam proportioner of nozzle-type Soviet Union good day stability is relatively preferable, but
It is relatively small flow adjustment range.
In view of this, the applicant conducts in-depth research to pressure air-foam proportioner, there is this case then
Produce.
Utility model content
The purpose of this utility model is to provide that a kind of flow adjustment range is relatively large and the relatively good pressure of stability
Power formula proportional mixer for air foam.
To achieve these goals, the utility model is adopted the following technical scheme that：
A kind of pressure air-foam proportioner, including feed pipe, connecting tube and the anemostat being sequentially connected, it is described
The water supply branch pipe being connected with the water inlet of foam tank is provided with feed pipe, outlet towards the expansion is provided with the connecting tube
The nozzle of pipe is dissipated, the anemostat is disposed with mixing section, diffusion near one end of the connecting tube to another extreme direction
Section goes out the internal diameter of liquid section with liquid section, the internal diameter of the mixing section is gone out less than described in, and the internal diameter of the diffuser is mixed from towards described
The one end for closing section gradually increases to another extreme direction, is formed between the nozzle and the anemostat and mixes chamber, the connecting tube
On be additionally provided with the feed liquor branch pipe being connected with the foam outlet of foam tank and the mixing chamber respectively.
As a kind of improvement of the present utility model, first pressure table, the first pressure table are provided with the feed pipe
The side of the water inlet positioned at the water supply branch pipe towards the feed pipe.
As a kind of improvement of the present utility model, second pressure table, the second pressure table are provided with the anemostat
Positioned at it is described go out the corresponding position of liquid section at.
Using above-mentioned technical proposal, the utility model has the advantages that：
After press water flows into feed pipe, big portion's current direction nozzle therein, in nozzle exit due to jet and air
Or the viscous effect between liquid, the air or liquid near nozzle are taken away, and because the horizontal turbulent fluctuation of jet proton is spread
Effect, makes to form negative pressuren zone in mixing chamber；Fraction water enters foam tank through exit branch simultaneously so that the foam in foam tank
The foam solution of pressure is formed with, so pressure difference is formed in foam tank and between mixing chamber, in the presence of pressure difference, the foam of equivalent
Liquid enters mixing chamber along feed liquor branch pipe, and the high-speed jet produced in company with nozzle together enters the mixing section of anemostat, in mixing
Duan Fasheng energy exchanges, the part energy of press water passes to foam solution, and the speed of press water slows down, and the speed of foam solution adds
Hurry up, when both speed is consistent, enter liquid section, because the internal diameter of diffuser gradually increases, resistance coefficient phase through diffuser
To smaller, flow adjustment range is relatively large and stability is relatively preferable.
Figure of description
Fig. 1 is the structural representation of the utility model balancing gate pit proportional mixer for air foam.
Correspondence is indicated in figure as follows：
10- feed pipes；11- water inlets；
12- first pressure tables；13- water supply branch pipes；
20- connecting tubes；22- nozzles；
22- mixes chamber；23- feed liquor branch pipes；
30- anemostats；31- mixing sections；
32- diffusers；33- goes out liquid section；
34- second pressure tables.
Specific embodiment
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the pressure air-foam proportioner that the present embodiment is provided, including the feed pipe being sequentially connected
10th, connecting tube 20 and anemostat 30, are interconnected between feed pipe 10 and connecting tube 20 and connecting tube 20 and anemostat 30,
Feed pipe 10 has water inlet 11 away from one end of connecting tube 20.
First pressure table 12 and the water supply branch pipe 13 being connected with the water inlet of foam tank are provided with feed pipe 10, wherein the
One pressure gauge 12 is located at water supply branch pipe 13 towards the side of the water inlet 11 of feed pipe 10, the influent pressure for detecting feed pipe 10
Power.Additionally, above-mentioned foam tank is conventional fire-fighting foam storage tank, storage is no longer described in detail.
Nozzle 21 of the outlet towards anemostat 30 is provided with connecting tube 20, the nozzle 21 is conventional nozzle, storage
No longer describe in detail.Nozzle 21 is preferably located at connecting tube at the position of anemostat 30.
Anemostat 30 is disposed with mixing section 31, the and of diffuser 32 from the one end near connecting tube 20 to another extreme direction
Go out liquid section 33, wherein, the internal diameter of mixing section 31 is less than out the internal diameter of liquid section 33, and the internal diameter of diffuser 32 is from towards mixing section 31
One end gradually increases to another extreme direction, and the minimum diameter of diffuser 32 is identical with the internal diameter of mixing section 31, i.e. diffuser 32
In horn-like, the horn-like opening angle is preferably less than or equal to 12 °.Additionally, being provided with second pressure table on anemostat 30
34, second pressure table 34 is located at and goes out at 33 corresponding positions of liquid section, the fluid pressure for detecting outflow anemostat 30.
Connecting tube 20 is formed in the pipeline section between nozzle 21 and anemostat 30 and also set up on mixing chamber 22, and connecting tube 20
There is the feed liquor branch pipe 23 being connected with the foam outlet of foam tank and mixing chamber 21 respectively.
When using, after press water flows into feed pipe 10 from water inlet 11, big portion's current direction nozzle 21 therein, in nozzle 21
Exit can take away the air or liquid near nozzle 21 due to the viscous effect between jet and air or liquid, and by
In the horizontal turbulent diffusion of jet proton so that mix and negative pressuren zone is formed in chamber 22；Fraction water is through exit branch simultaneously
13 enter foam tank so that the formation of foam in foam tank has the foam solution of pressure, so between foam tank and mixing chamber 22
Pressure difference is formed, in the presence of pressure difference, the foam solution of equivalent enters mixing chamber 22 along feed liquor branch pipe 23, and is produced in company with nozzle 21
High-speed jet together into the mixing section 31 of anemostat 30, there is energy exchange, a part for press water in the mixing section 31
Energy transmission is to foam solution so that the speed of press water slows down, and the speed of foam solution is accelerated, when both speed is consistent, two
Person enters liquid section 33 through diffuser 32 together, finally flows out anemostat 30, because the internal diameter of diffuser 32 gradually increases, resistance
Coefficient is relatively small, and flow adjustment range is relatively large and stability is relatively preferable.
The utility model is described in detail above in conjunction with accompanying drawing, but implementation method of the present utility model and not only
It is limited to above-mentioned implementation method, those skilled in the art can make various modifications according to prior art to the utility model, such as will
Pressure gauge in above-described embodiment is changed to pressure sensor etc., and these belong to protection domain of the present utility model.
Claims (3)
1. a kind of pressure air-foam proportioner, it is characterised in that including the feed pipe, connecting tube and the expansion that are sequentially connected
Pipe is dissipated, the water supply branch pipe being connected with the water inlet of foam tank is provided with the feed pipe, outlet is provided with the connecting tube
Towards the nozzle of the anemostat, the anemostat is mixed from being disposed with to another extreme direction near one end of the connecting tube
Close section, diffuser and go out liquid section, the internal diameter of the mixing section less than it is described go out liquid section internal diameter, the internal diameter of the diffuser is from court
Gradually increase to another extreme direction to one end of the mixing section, formed between the nozzle and the anemostat and mix chamber, institute
State the feed liquor branch pipe for being additionally provided with connecting tube and being connected with the foam outlet of foam tank and the mixing chamber respectively.
2. pressure air-foam proportioner as claimed in claim 1, it is characterised in that be provided with the feed pipe
First pressure table, the side of water inlet of the first pressure epitope in the water supply branch pipe towards the feed pipe.
3. pressure air-foam proportioner as claimed in claim 1 or 2, it is characterised in that set on the anemostat
Be equipped with second pressure table, the second pressure epitope in it is described go out the corresponding position of liquid section at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621299419.2U CN206239930U (en) | 2016-11-30 | 2016-11-30 | A kind of pressure air-foam proportioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621299419.2U CN206239930U (en) | 2016-11-30 | 2016-11-30 | A kind of pressure air-foam proportioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206239930U true CN206239930U (en) | 2017-06-13 |
Family
ID=59002499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621299419.2U Active CN206239930U (en) | 2016-11-30 | 2016-11-30 | A kind of pressure air-foam proportioner |
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| Country | Link |
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| CN (1) | CN206239930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497085A (en) * | 2017-09-20 | 2017-12-22 | 福建天广消防有限公司 | A kind of froth fire extinguishing system |
-
2016
- 2016-11-30 CN CN201621299419.2U patent/CN206239930U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497085A (en) * | 2017-09-20 | 2017-12-22 | 福建天广消防有限公司 | A kind of froth fire extinguishing system |
| CN107497085B (en) * | 2017-09-20 | 2022-11-15 | 福建天广消防有限公司 | Foam fire extinguishing system |
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