CN205145462U - Controllable foam gun that admits air - Google Patents
Controllable foam gun that admits air Download PDFInfo
- Publication number
- CN205145462U CN205145462U CN201520946675.5U CN201520946675U CN205145462U CN 205145462 U CN205145462 U CN 205145462U CN 201520946675 U CN201520946675 U CN 201520946675U CN 205145462 U CN205145462 U CN 205145462U
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- Prior art keywords
- chamber
- foam
- orifice
- breathing
- flow
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Abstract
The utility model discloses a controllable foam gun that breathes in, it is equipped with in proper order: liquid flow controls the chamber, and it has an at least flow -through orifice to embed, the hybrid chamber is controlled the chamber intercommunication and is had the air inlet in addition with liquid flow, foaming chamber, with the hybrid chamber intercommunication, just built -in have at least a liquid to smash the subassembly, the spout communicates with foaming chamber. The utility model discloses a controllable foam gun of breathing in is used for breathing in the formula foaming, and so, only under the certain state of the foam base fluid flow of the hybrid chamber of flowing through, it is certain through the inspiratory quantity of gas of induction port. The utility model discloses put the flow -through orifice at liquid flow control intracavity, the perforation has been seted up to the flow -through orifice, and the foam base fluid is extremely outside by the punch out of flow -through orifice after getting into liquid flow control chamber.
Description
Technical field
The utility model relates to fire-fighting equipment technical field, particularly a kind of Controllable Income Air foam gun.
Background technology
The fire extinguishing of current compressed class A air foam all with the rotating speed of water flow signal control class A foam liquid displacement pump, to realize water and class A foam mixing to scale.In the process, make compressed air equal with the pressure of mixed liquor by pressure equaliser, make compressed air enter mixed liquor and form two phase flow.Though above prior art automaticity is higher, complex structure, involve great expense, difficult in maintenance.
In addition, such device due to the change of Systematical control pressure greatly, water, foam, compressed-air actuated mixed proportion error are also larger, and particularly the equalization point of gas, hydraulic coupling easily drifts about, thus causes the injection of compressed class A air foam to interrupt.
The standard rifle detecting fire foam in GB15308-2006 is natural aspiration, there is certain limitation when detecting the performance parameter of fire foam.Such as, the air capacity sucked during the foaming of uncontrollable extinguishing chemical, thus checking is when inspiratory capacity is different, whether the coefficient of foaming of same foam, drainage time and attack time etc. can change; At different altitude height, when air pressure is different, the coefficient of foaming of same fire foam cannot be fixed, thus go to measure the identical drainage time of foam under Different Altitude and the change of attack time.
Above-mentioned limitation makes the practicality of standard rifle in the scientific research of fire foam not strong, is difficult to meet the demand to the various Experiment Parameter research of fire foam.
Utility model content
The purpose of this utility model overcomes or slow down the part at least above-mentioned shortcoming, and hereby provide a kind of controlled air-breathing foam gun, it is provided with successively: fluid flow control chamber, is built-in with at least one piece of flow-through orifice; Hybrid chamber, is communicated with fluid flow control chamber and separately has air inlet; Foam chamber, is communicated with hybrid chamber, and is built-in with at least one liquid and smashes assembly; Spout, is communicated with foam chamber.
Preferably, described fluid flow control chamber is built-in with porous flow orifice and single hole current plate along its caliber, and described single hole current plate is placed between described how empty current plate and hybrid chamber, forms cushion chamber between described single hole current plate and porous flow template.
In addition, the caliber of described foam chamber is 0.5 cun or 1 cun or 1.25 cun, and the aperture of described single orifice plate is 3mm or 2.5mm or 1.5mm or 1mm.
Preferably, the combination that assembly is screw or foam screen or screw and foam screen is smashed described in.
Preferably, described hybrid chamber and/or foam chamber are made up of transparent material.
In addition, described transparent material is lucite.
In addition, described fluid flow control chamber is provided with ball valve.
Controlled air-breathing foam gun of the present utility model is mainly used for carrying out air suction type foaming, and so, only under the state that the foam base fluid flow flowing through hybrid chamber is certain, its gas flow sucked by air entry is certain.The utility model is built-in with flow-through orifice at fluid flow control chamber, and flow-through orifice offers perforation, and foam base fluid exports outside to by the perforation of flow-through orifice after entering fluid flow control chamber.
Accompanying drawing explanation
Describe these and other aspect of the present utility model in further detail now with reference to appended accompanying drawing, it is depicted as currently preferred embodiment of the present utility model.Wherein: Fig. 1 is the cut-away view of the present embodiment.
In figure: 1, ball valve; 2, the first intervalve; 3, flow control tube; 31, three hole current plates; 32, single hole current plate; 4, air intake duct; 41, suction hole; 42, suction line; 43, infusion pipeline; 5, mixing tube; 51, bolt; 52, foam screen group; 6, take over; 7, separator tube; 8, nozzle.
Detailed description of the invention
Below in conjunction with accompanying drawing and instantiation, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As shown in Figure 1, a kind of controlled air-breathing foam gun, it comprises ball valve 1, one end of this ball valve 1 is communicated with outside infusion pipeline 43, other end pipe is connected to the first intervalve 2, the other end of the relative ball valve 1 of the first intervalve 2 is provided with flow control tube 3, and the other end of relative first intervalve 2 of flow control tube 3 is provided with air intake duct 4.Three hole current plates 31 and a single hole current plate 32 is provided with in the flow control tube 3 of the present embodiment, first intervalve 2 stretches into the two ends of air intake duct 4 along flow control tube 3 and is connected with the inner thread of flow control tube 3, so single hole current plate 32 and three hole current plates 31 are pressed in flow control tube 3, and one end of the relative single hole current plate 32 of three hole current plates 31 is provided with groove, then form cushion chamber between single hole current plate 32 and three hole current plates 31.
The air intake duct 4 of the present embodiment is built-in with air suction inner pipe, this air suction inner pipe has a suction line 42 and an infusion pipeline 43, the other end of air intake duct 4 relative discharge control valve 3 is provided with hybrid chamber, one end of suction line 42 is communicated with suction hole 41, the other end stretches into mixing tube 5, and one end of infusion pipeline 43 is communicated with the perforation of single hole current plate 32.
So, by the restriction in single hole current plate 32 and three hole current plates 31 and its aperture, be then fixing by the flow of single hole current plate 32 foam output base fluid, then in mixing tube 5, its amount through suction hole 41 suction gas is also constant.
This mixing tube 5 is built-in with bolt 51 and foam screen group 52 groups.So, mixed liquor impinges upon the bar portion of bolt 51, and mixed liquor is smashed, more tiny by the mixed liquor smashed, and can mix fully, promotes bubbling efficiency.Be connected to separator tube 7 at the other end of the relative air intake duct 4 of mixing tube 5 by adapter 6 pipe, the other end of the relative mixing tube 5 of separator tube 7 is provided with nozzle 8.So, the present embodiment fully foams in mixing tube 5, then after having surge tank to carry out step-down to its pressure, sprays equably.
In addition, the caliber of the present embodiment preferably mixing tube 5 is 0.5 cun or 1 cun or 1.25 cun, then the aperture of single orifice plate is 3mm or 2.5mm or 1.5mm or 1mm.With satisfied generation 1 ~ 11.4L/mind foam base fluid, and the gas soakage of correspondence.
Preferably, the mixing tube 5 of the present embodiment is sintered by lucite and forms, and is convenient to the injection state that staff can observe foam base fluid intuitively, and the state of foaming.
Claims (7)
1. a controlled air-breathing foam gun, is characterized in that being provided with successively: fluid flow control chamber, is built-in with at least one piece of flow-through orifice; Hybrid chamber, is communicated with fluid flow control chamber and separately has air inlet; Foam chamber, is communicated with hybrid chamber, and is built-in with at least one liquid and smashes assembly; Spout, is communicated with foam chamber.
2. controlled air-breathing foam gun according to claim 1, it is characterized in that, described fluid flow control chamber is built-in with porous flow orifice and single hole current plate along its caliber, described single hole current plate is placed between described how empty current plate and hybrid chamber, forms cushion chamber between described single hole current plate and porous flow template.
3. controlled air-breathing foam gun according to claim 2, is characterized in that, the caliber of described foam chamber is 0.5 cun or 1 cun or 1.25 cun, and the aperture of described single orifice plate is 3mm or 2.5mm or 1.5mm or 1mm.
4. controlled air-breathing foam gun according to claim 1, is characterized in that, described in smash the combination that assembly is screw or foam screen or screw and foam screen.
5. controlled air-breathing foam gun according to claim 1, it is characterized in that, described hybrid chamber and/or foam chamber are made up of transparent material.
6. controlled air-breathing foam gun according to claim 5, is characterized in that, described transparent material is lucite.
7. controlled air-breathing foam gun according to claim 1, is characterized in that, described fluid flow control chamber is provided with ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520946675.5U CN205145462U (en) | 2015-11-24 | 2015-11-24 | Controllable foam gun that admits air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520946675.5U CN205145462U (en) | 2015-11-24 | 2015-11-24 | Controllable foam gun that admits air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205145462U true CN205145462U (en) | 2016-04-13 |
Family
ID=55681206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520946675.5U Expired - Fee Related CN205145462U (en) | 2015-11-24 | 2015-11-24 | Controllable foam gun that admits air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205145462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363160A (en) * | 2015-11-24 | 2016-03-02 | 中国民用航空飞行学院 | Controllable air inlet foam gun |
-
2015
- 2015-11-24 CN CN201520946675.5U patent/CN205145462U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363160A (en) * | 2015-11-24 | 2016-03-02 | 中国民用航空飞行学院 | Controllable air inlet foam gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20181124 |