CN1039573C - Gear-type proportional mixer for air foam - Google Patents
Gear-type proportional mixer for air foam Download PDFInfo
- Publication number
- CN1039573C CN1039573C CN92101478A CN92101478A CN1039573C CN 1039573 C CN1039573 C CN 1039573C CN 92101478 A CN92101478 A CN 92101478A CN 92101478 A CN92101478 A CN 92101478A CN 1039573 C CN1039573 C CN 1039573C
- Authority
- CN
- China
- Prior art keywords
- gear
- air
- fluid motor
- pump
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a gear type proportional mixer for air foam, which is a fire extinguisher and aims to achieve the optimum fire extinguishing effect by mixing fire-fighting water and air foam liquid according to an accurate proportion under changeable working conditions. In the present invention, pressure water passes through and drives a gear type liquid motor, and the liquid motor directly drives a gear pump to pump the air foam liquid or drives the gear pump by mechanical connection so as to mix the two kinds of liquid with an unchanged proportion.
Description
The present invention utilizes the gear tooth that air is mixed by a certain percentage with water, forms mixed liquor, supplies with foam producer or injector and produces air, so that put out oils and olefines fire effectively.
Present general proportional mixer for air foam has following several, but all there are various shortcomings in they, and division is as follows now:
1 manual or automatic circular pump type proportional mixer for air foam.
Its shortcoming is:
(1) must be could use when pump working is arranged, working range be narrow, to they cut little ice in the place that high-pressure water is only arranged.
(2) must not there be the back pressure greater than 0.05MPa in the exit, otherwise the liquid absorption of blender will be reduced, and directly has influence on the mixing ratio of air and water, therefore has the above pressure water source of 0.05MPa can not adopt this blender.
Mixing ratio is inaccurate when (3) producing the equipment adapted with foam under the off rating condition, and mixing ratio is inaccurate in froth fire extinguishing system, and the quality that produces foam is had direct influence, so that influence fire extinguishing effect.
(4) the automatic ratio blender of " MAGIRUS " company of West Germany, though overcome hand-adjusting type proportioner unmatched defective under the off rating condition, but this mixer structure and processing technology complexity, the water-aspirator pressure loss is big, therefore generally just is used in the little occasion of changes in flow rate.
2 pipeline proportional mixer for air foam.
Its shortcoming is:
(1) outlet authorized pressure 0.12～0.24MPa, the incompatible foam producer that also is not enough to be enabled in 0.5～0.6MPa work.
(2) the variable back pressure inline inductor produced of the U.S. " ANSUL " company, also more than 10%～20%, displacement volume is little for its pressure loss, regulates mixing ratio with the switching of valve body, also can cause the fluctuation of mixing ratio.
3 air equalizing pressure proportioners.
Its shortcoming is:
(1) working pressure container, even stainless cylinder of steel, corrosion-resistant diaphragm, its complex process costs an arm and a leg, and general several ten thousand yuan to tens0000 yuan, the investment of a little gas station no better than.
(2) also there is complex process in balanced valve formula proportioner, and the price height also needs an ad hoc foam pump.
The objective of the invention is: a kind of hydraulic pressure height, flow size, outlet pressure and back pressure variable effect of not being subjected to is provided, can guarantee the gear-type proportional mixer for air foam that air soup and water mix in proportion again, as long as can start when the difference of its inlet and outlet pressure has 0.15MPa, install because of need not to make the ring pump, so the water source that all pressure can reach 0.65MPa all can use.
Its technical scheme is: utilize waterpower to drive a gear type fluid motor, drive a gear pump by it again, to draw air, so as to reaching pro rata mixing.
The realization of purpose of the present invention provides by following embodiment and accompanying drawing are vertical.
Among the figure: 1 clear water import; 2,3,8 gears; 4 gear shafts; 5 housings; 6 mixture exports; 7 airs inlet.
As shown in the figure: gear 3 is fixedly mounted on the gear shaft 4, and gear 2,8 also is installed in respectively on its gear shaft separately.Gear 2, gear 3 formed a fluid motor with housing 5, when press water when mouth 1 enters, gear 2, gear 3 just begin to rotate, and liquid is transferred to the space 7 of foam solution porch, meanwhile, gear 2 is formed a gear pump with gear 8 again, and with fluid motor synchronous operation.So just liquid is pressed the exit 6 that moves to mixed liquor again from 7 cavity, but because of adopting different tooth matching angles, the gear pump delivery is greater than the fluid motor of synchronous working, so just near the cavity air inlet 7 produces vacuum.Be stored in this moment with the enter the mouth ducted foam solution at 7 places of air and just mend in the chamber, it is poor that its quantity just equals the discharge capacity of fluid motor and liquid pump.Can prove: the ratio between the discharge capacity of fluid motor and the discharge capacity difference can be because of the length of time, the speed of rotating speed and become with, that is to say that clear water and air are to mix according to a constant ratio.
More than be a kind of method of utilizing difference to hold, also can draw air separately by the synchronous driven gear pump of mechanical attachment by fluid motor after, sneak into fluid motor again and discharge in the liquid, thereby reach the purpose of mixing in proportion.
The present invention also can be used on other place that need mix two kinds of different liquids in proportion.
Claims (2)
1 one kinds of gear-type proportional mixer for air foam relate to press water are mixed in proportion with air; It is characterized in that: utilize waterpower to drive a gear type fluid motor, drive a gear pump by it again, to draw air, to reach pro rata mixing, gear 3 is fixed on the gear shaft 4, gear 2,8 on the tooth axle that is installed in respectively separately, gear 2, gear 3 has been formed fluid motor with housing 5, when press water when mouth 1 enters, gear 2, gear 3 just begins to rotate, and liquid is transferred to the space 7 of foam solution porch, and gear 2 is formed a gear pump with gear 8 again, and the gear pump delivery is greater than the discharge capacity of fluid motor, the vacuum that porch 7 produces is replenished by foam solution, it is poor that its value equals the discharge capacity of the two, thereby reach mixing in proportion of water and foam solution, and mixed liquor is discharged by outlet 6.
2 devices according to claim 1 is characterized in that: fluid motor and gear pump are by mechanical attachment run-in synchronism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92101478A CN1039573C (en) | 1992-03-05 | 1992-03-05 | Gear-type proportional mixer for air foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92101478A CN1039573C (en) | 1992-03-05 | 1992-03-05 | Gear-type proportional mixer for air foam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1076129A CN1076129A (en) | 1993-09-15 |
| CN1039573C true CN1039573C (en) | 1998-08-26 |
Family
ID=4939142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92101478A Expired - Fee Related CN1039573C (en) | 1992-03-05 | 1992-03-05 | Gear-type proportional mixer for air foam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1039573C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175035B (en) * | 2011-02-21 | 2012-12-05 | 大连海事大学 | Mechanical stirring-type fuel oil watering device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2443422A1 (en) * | 1978-12-04 | 1980-07-04 | Molinari & Tansini | Mixing and metering head for syrups - having gear pump for syrup concentrate and piston operated by dilution water which allows controlled metered flow |
| DD148586A1 (en) * | 1980-01-22 | 1981-06-03 | Guenther Herrmann | EQUIPMENT FOR ADMINISTRATING FOAM PAPER ON PORTABLE POWERFUL EXTRACTION PUMPS |
-
1992
- 1992-03-05 CN CN92101478A patent/CN1039573C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2443422A1 (en) * | 1978-12-04 | 1980-07-04 | Molinari & Tansini | Mixing and metering head for syrups - having gear pump for syrup concentrate and piston operated by dilution water which allows controlled metered flow |
| DD148586A1 (en) * | 1980-01-22 | 1981-06-03 | Guenther Herrmann | EQUIPMENT FOR ADMINISTRATING FOAM PAPER ON PORTABLE POWERFUL EXTRACTION PUMPS |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1076129A (en) | 1993-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4899825A (en) | Continuous mixing device, particulary suitable for preparing aqueous solutions of foam extinguisher for fire-fighting systems | |
| CN203154668U (en) | Compressed gas foam proportioning device | |
| CN104162353B (en) | One utilizes plant extraction liquid to carry out atomization and deodorization method and system | |
| CN201524364U (en) | Vehicle compressed air foam extinguishing system | |
| US4597980A (en) | Procedure for the production of food foams | |
| CN1039573C (en) | Gear-type proportional mixer for air foam | |
| CN212151741U (en) | Dosing and mixing device of water treatment system | |
| CN205886723U (en) | Mining emulsion proportioning system | |
| CN201079648Y (en) | Electric gear type foam pump package | |
| CN108295402A (en) | A kind of electronic type froth ratio adjusting constant pressure explosion-proof Fire Fighting Pumps | |
| CN215783099U (en) | Mixed gas centralized preparation gas supply system | |
| CN203154669U (en) | Positive pressure type foam proportioning unit | |
| CN206167686U (en) | Foam extinguishing device | |
| CN114832677A (en) | Dispersing and mixing equipment for Chinese traditional medicine syrup processing and working method thereof | |
| CN208641598U (en) | A kind of duplex blade mechanism is pumped into formula foam proportioning unit | |
| CN210559465U (en) | High-pressure fine water mist dosing device | |
| US5453250A (en) | Apparatus for the preparation of a flowable reaction mixture | |
| CN2230616Y (en) | Continuous emulsifier | |
| CN217962049U (en) | Industrial gas multi-stage adjusting and conveying system | |
| CN211677220U (en) | Multipurpose liquid proportioning device | |
| CN110560335A (en) | Online mixing and feeding system | |
| CN215997154U (en) | Double-flow-passage spraying equipment | |
| CN212635173U (en) | Double-fluid precision spraying control system | |
| CN110253333A (en) | Cold atomization system outside a kind of good digital micro lubricating | |
| CN219472349U (en) | Multistage booster pump group for fire control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |