CN105363160A - Controllable air inlet foam gun - Google Patents
Controllable air inlet foam gun Download PDFInfo
- Publication number
- CN105363160A CN105363160A CN201510825582.1A CN201510825582A CN105363160A CN 105363160 A CN105363160 A CN 105363160A CN 201510825582 A CN201510825582 A CN 201510825582A CN 105363160 A CN105363160 A CN 105363160A
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- China
- Prior art keywords
- foam
- chamber
- flow control
- foam gun
- cavity
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Abstract
The invention discloses a controllable air inlet foam gun. The controllable air inlet foam gun is sequentially provided with a liquid flow control cavity, a mixing cavity, a foaming cavity and a nozzle, wherein at least one flow pore plate is arranged in the liquid flow control cavity; the mixing cavity is communicated with the liquid flow control cavity and provided with an air inlet; the foaming cavity is communicated with the mixing cavity and internally provided with at least one liquid shattering assembly; the nozzle is communicated with the foaming cavity. The controllable air inlet foam gun is mainly used for air-breathing foaming, and the amount of gas sucked through an air sucking inlet by means of the controllable air inlet foam gun is within a certain range only in the state that the foaming base solution flow passing through the mixing cavity is in a certain amount. Due to the fact that the liquid flow control cavity is internally provided with the flow pore plates which are provided with pores, a foaming base solution is discharged to the outside through the pores of the flow pore plates after entering the liquid flow control cavity.
Description
Technical field
The present invention 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.
Summary of the invention
The object of the invention is to overcome or slow down the part at least above-mentioned shortcoming, 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 invention 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 present invention 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 invention in further detail now with reference to appended accompanying drawing, it is depicted as currently preferred embodiment of the present invention.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 present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention 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 |
|---|---|---|---|
| CN201510825582.1A CN105363160A (en) | 2015-11-24 | 2015-11-24 | Controllable air inlet foam gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825582.1A CN105363160A (en) | 2015-11-24 | 2015-11-24 | Controllable air inlet foam gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105363160A true CN105363160A (en) | 2016-03-02 |
Family
ID=55366095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510825582.1A Pending CN105363160A (en) | 2015-11-24 | 2015-11-24 | Controllable air inlet foam gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105363160A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621147A (en) * | 2017-01-23 | 2017-05-10 | 中国民用航空飞行学院 | Foaming multiple adjustable airborne foam nozzle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU902766A1 (en) * | 1979-08-13 | 1982-02-07 | Проектно-Конструкторское Бюро Главного Управления Локомотивного Хозяйства Министерства Путей Сообщения Ссср | Device for producing air-machanical foam |
| CA1266073A (en) * | 1988-12-14 | 1990-02-20 | Douglas E. Stevenson | Foam generating nozzle |
| CN201558437U (en) * | 2009-12-16 | 2010-08-25 | 西安新竹防灾救生设备有限公司 | Medium expansion foam generator |
| CN102068780A (en) * | 2011-01-16 | 2011-05-25 | 哈尔滨工程大学 | Air-water mixed fire extinguishing spray nozzle |
| CN103111033A (en) * | 2013-02-26 | 2013-05-22 | 王靖 | Gas-liquid mixing device |
| CN103550890A (en) * | 2013-11-08 | 2014-02-05 | 西安新竹防灾救生设备有限公司 | Gun for generating medium expansion foams |
| JP2014094079A (en) * | 2012-11-08 | 2014-05-22 | Nippon Dry Chem Co Ltd | Foam nozzle for foam extinguishment facility |
| CN205145462U (en) * | 2015-11-24 | 2016-04-13 | 中国民用航空飞行学院 | Controllable foam gun that admits air |
-
2015
- 2015-11-24 CN CN201510825582.1A patent/CN105363160A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU902766A1 (en) * | 1979-08-13 | 1982-02-07 | Проектно-Конструкторское Бюро Главного Управления Локомотивного Хозяйства Министерства Путей Сообщения Ссср | Device for producing air-machanical foam |
| CA1266073A (en) * | 1988-12-14 | 1990-02-20 | Douglas E. Stevenson | Foam generating nozzle |
| CN201558437U (en) * | 2009-12-16 | 2010-08-25 | 西安新竹防灾救生设备有限公司 | Medium expansion foam generator |
| CN102068780A (en) * | 2011-01-16 | 2011-05-25 | 哈尔滨工程大学 | Air-water mixed fire extinguishing spray nozzle |
| JP2014094079A (en) * | 2012-11-08 | 2014-05-22 | Nippon Dry Chem Co Ltd | Foam nozzle for foam extinguishment facility |
| CN103111033A (en) * | 2013-02-26 | 2013-05-22 | 王靖 | Gas-liquid mixing device |
| CN103550890A (en) * | 2013-11-08 | 2014-02-05 | 西安新竹防灾救生设备有限公司 | Gun for generating medium expansion foams |
| CN205145462U (en) * | 2015-11-24 | 2016-04-13 | 中国民用航空飞行学院 | Controllable foam gun that admits air |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621147A (en) * | 2017-01-23 | 2017-05-10 | 中国民用航空飞行学院 | Foaming multiple adjustable airborne foam nozzle |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |