CN1090796A - Apparatus for spray of foam - Google Patents
Apparatus for spray of foam Download PDFInfo
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- CN1090796A CN1090796A CN 93119606 CN93119606A CN1090796A CN 1090796 A CN1090796 A CN 1090796A CN 93119606 CN93119606 CN 93119606 CN 93119606 A CN93119606 A CN 93119606A CN 1090796 A CN1090796 A CN 1090796A
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- foam
- hole
- spray
- described apparatus
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Abstract
The present invention proposes a kind of apparatus for spray of foam (10), can make the gas liquid mixture that to foam arrive filter screen (52) element that has through hole of flowing through earlier before with this device, thereby make the air that contains proper proportion in the final foam.
Description
What the present invention relates to is a kind of apparatus for spray of foam, but comprising a container (12) that is used to be installed in foaming liquid, an air valve (28), a foam drainage hole (56) and at least one are arranged on filter screen between discharge orifice and the air valve, that be used to supply with liquid vapour mixture (52).
In a kind of existing apparatus for spray of foam, there is one to be used to be installed in the container of foam liquid of can foaming, a through hole that is impaled by an adapter sleeve is arranged on the container.On through hole with can the screw on emptying pump of a hand steerable of thread fiting mode with unscrewing.An intubate extends in the container from emptying pump.Be equipped with a piston and action bars on the emptying pump.The discharge orifice of emptying pump is made into the spray nozzle shape, is equipped with a bell housing in the discharge orifice front.Before spray nozzle, be provided with a filter screen, certain distance is arranged between the two, point to this filter screen by the jet that sprays in the spray nozzle.The width of mesh of filter screen is 0.074 to 0.25mm.The internal diameter of housing is greater than the diameter of jet, thereby the part of filter screen is penetrated less than jet.Also be provided with the air hand-hole on the housing, air enters on the filter screen via this hand-hole, and this formation for foam is crucial (seeing DE2925528C1).
In AU470144B and AU623537D, also disclose two kinds of apparatus for spray of foam, wherein,, in a passage, be provided with a plurality of filter screens in order to make the liquid vapour mixture foaming.
Disclose a kind of apparatus for spray of foam among the US4219159, wherein, in treating foaming liquid, carried certain air, made in the chamber that is attached thereto, directly to generate foam.Foam infiltrate multistorey strainer mesh then.
A kind of escaper that is used for discharged air has been described among the FR-A-2206743.
The object of the present invention is to provide a kind of apparatus for spray of foam, can obtain to have the meticulous foam of even AIR Proportional with this device.
Technical solution of the present invention is, makes between the filter screen of liquid vapour mixture foaming at air valve and at least one, is provided with one and makes the well-mixed element of liquid vapour mixture.
As an embodiment, this element is that the disc type device of through hole or the bottom surface at one end uncovered hollow cylinder are arranged on it.
In another embodiment, hollow cylinder bigger in aperture, valve seat place begins from the citadel of disc or bottom surface to extend and coaxial with the hole of shower nozzle along the direction of air valve, is equipped with a filter screen in shower nozzle at least.In accordance with the teachings of the present invention, can guarantee that liquid vapour mixture fully mixes earlier before the filter core that arrives filter screen or made by fabric, fabric or aphrolite in certain scope, contain a large amount of even air in the feasible foam of from this device, discharging.
Another outstanding feature of the present invention is, being provided with in a hole should short hybrid element, and this hole is the inner chamber of a sleeve, lays one and be used to open rod member or pipe fitting air valve, that can vertically move in this inner chamber.
The hollow cylinder that another its edge the is provided with some through holes preferably choke office that has through hole from the sleeve (72) begins to extend.Sleeve preferably is made of three sections different hollow cylindrical sections of diameter, and wherein, interlude constitutes reducing.
The cylindrical portion in the outside guides to be installed in rod member or the pipe fitting of operating air valve, and its diameter is equipped with short hybrid element less than the hollow cylindrical section of contiguous air valve in one cylindrical portion of back, filter screen preferably also is housed.
The through hole that on described element, circumferentially distributes can be flute profile or circle hole shape, also can be other geometries.The cross-sectional area of each through hole is preferably 0.20 square millimeter.Particularly, total cross-sectional area of through hole is about 1/18 to 1/22 of disk area or cylinder floor space, is the best with 1/20.Via count can be, for example 12.
Other details of the present invention, feature and advantage are not limited to the mentioned feature of each claim or these combination of features, but also can be by obtaining explanation in the following description to embodiment shown in the accompanying drawing.
Fig. 1 is the longitudinal sectional view of apparatus for spray of foam;
Fig. 2 is the longitudinal sectional view of the sleeve of guiding liquid-gas mixture;
Fig. 3 is the axonometric drawing that is arranged on the inserts in the sleeve shown in Fig. 2;
Fig. 4 has represented another embodiment of inserts;
Fig. 5 is the vertical view of inserts shown in Fig. 4.
The longitudinal profile of having represented apparatus for spray of foam (10) among Fig. 1.There is one to be used to be installed in the cylindrical container (12) of foam liquid of to foam on the apparatus for spray of foam (10).Be extended with a pipe (14) at container intracavity, this pipe is concentric with the outer sleeve of container (12), and its end in container (12) (16) are located to uncovered.In the pipe (14) piston (18) is arranged, this piston can move under the effect of a hand-operated pump (20).Piston (18) links to each other with top cover (24) by a piston rod (22).The place, bottom that this top cover is arranged on container (12) piston (18) outer and shown in the figure leans against on the end (16).On the tube wall of pipe (14), have a through hole (not expression in detail) at least, be used for the air of piston (18) compression is incorporated into container intracavity.
Container (12) has a foaming liquid hand-hole (26) in its end.After liquid injected and finishes, hand-hole (26) was closed by an air valve (28).Air valve (28) comprises a housing (30), is provided with a valve body (32) in this housing, and this valve body (32) can be pressed against on the valve seat (not expression in detail) by a spring (34).Valve body (32) is connected with an ejector sleeve (36), and this ejector sleeve (36) is supported on housing (30) and goes up and can vertically move along it, is provided with some radial holes (representing in detail) in the fixing end of itself and valve body (32).Ejector sleeve (36) stretches out housing (30), and this housing is formed (not expression in detail) by two sections cylinders, and this cylinder is provided with along the external thread section (38) of container (12).
Fixed a sealing ring (40) in the outer end of housing (30), its edge (42) are made into an arcuation and are connected with seal (44) on the outer rim that is supported on external thread section (38) (expression in detail).By the locking nut (46) on the external thread section that is screwed in container, sealing ring (40) solution-air is pressed on the external thread section (38) hermetically.
Ejector sleeve (36) stretches out the top edge of external thread section (38) and can be inserted in the hole (50) on the shower nozzle (48).The same with container (12) and locking nut (46), shower nozzle (48) also is made of plastic.One hole (50) is arranged on the shower nozzle (48), the filter screen (52) of at least one width of mesh less than 0.07mm wherein is housed.
The width of mesh of filter screen (52) preferably is chosen in 0.036mm or littler.A filter screen (52) and an adjacent boundary of expansion chamber (54) that a discharge orifice (56) are arranged on it.
Hole (50) can be surrounded by a sleeve (70) shown in Fig. 2 like that, and this sleeve is risen by shower nozzle (48) and carries out the transition to expansion chamber (54) termination.
Housing (30) has a through hole (58) in its end.Housing is located to be connected with an intubate (60) at through hole (58), and the other end of intubate (60) injects in the container (12) and immerses in the liquid (62), and this liquid is positioned at the cavity between pump (20) and the container inner wall when cylindrical container is in vertical position.
Have a passage as air vent (64) on housing (30) at least, this passage is set up connected relation at housing inner chamber and container (12) between the zone of housing (30).The cross section of passage (64) is made into hole shape and consistent with the cross section of intubate (60).When guaranteeing unanimity, should consider the flow passage resistance of intubate (60) and passage (64).The purpose of coupling cross section be to guarantee to flow through housing (30), and the fluid flow by ejector sleeve (36) supply shower nozzle (48) in should be mixed with air in certain amount.The fluid flow of housing (30) and the air capacity that flows in this liquid of flowing through in unit interval should have certain ratio, and this is very important for forming good foam quality.But, the air that enters in the liquid still remains pure bubble attitude in certain time interval.This phase of liquid-gas also is not enough to be mixed into the degree that can produce uniform pore foam by direct bump filter screen.
For liquid vapour mixture can fully be mixed, arrive filter screen (52) at mixture and should form foam before, thereby, an element that plays the collision part effect and have through hole is set in hole (50) at least, this element can be that disc also can be the cylindricality of hollow.This element extends on the entire cross section of hole (50), and above-mentioned cross section is facing to expansion chamber (54).
As already mentioned, hole (50) constitute the inner chamber of sleeve (70), and the expansion chamber (54) that this sleeve is extended down on the shower nozzle (48) locates, and this sleeve also can be made one with shower nozzle (48) as required.
Sleeve (70) is made up of three hollow cylindrical sections (72), (74) and (76), these three cylindrical portion have formed hole (50), wherein, interlude (74) forms the reducing part in hole (50), on this choke divides an element that has through hole that is provided with for liquid vapour mixture is fully mixed is installed, the structure of this element will be discussed in more detail below.Be hypomere (72) below reducing (74), the diameter of hypomere guides to lay a rod member or tubular piece (36) less than epimere (76) in hypomere, in order to operation air valve (28).
Be arranged on part (78) between interlude (74) and the filter screen (52) and can be one have the through hole of circumferential arrangement, as the disk of hole or groove, perhaps also can make the twin-tub shape shown in Fig. 2 to Fig. 5.
Part (78) comprises an outer shell (80) and an inner casing coaxial with it (82), and outer shell (80) is located at the bottom surface (84) of the epimere (76) of sleeve (70).The edge of inner casing (82) is shaped on some notches (86).Thus, make the liquid vapour mixture that enters inner casing (82) inner chamber by reducing or hole (74) in through the process of notch (86), further to mix or the generation eddy flow after flow into again in the chamber between outer shell (80) and the inner casing (82).Subsequently, this mixture notch (92) that edge on the top cover (90) of outer shell (80) is circumferentially evenly arranged of flowing through, thus supply with filter screen (52) and foam at the filter screen place or expansion chamber (54) in.
Outer shell (80) also can extend along the inwall of the cylindrical portion (76) of sleeve (70).As another kind of scheme, also can be provided with from airtight middle part at inner casing (82) inwall that is extended down to outer shell (80), with base plate or the corresponding element of disk (90).
In the embodiment shown in Fig. 3, through hole (92) is a flute profile, adopts other geometries passable too certainly, for example among Fig. 4 and Fig. 5 clearly expression like that.
Short hybrid element (94) shown in Fig. 4 and Fig. 5 is made of an enclosing cover shape part (96), a hollow cylinder (100) is downward from its bottom surface (98), the length of extending is less than the thickness of the ring segment (104) of lid shape part (96), and the bottom surface (84) of this ring segment section of terminating in (76) is located.
Cylinder (102) extends in the top in the hole (74) of sleeve (70), like this, the liquid vapour mixture that flows into can enter in the inner chamber (106) of cylinder (100) through this hole, and then the inner chamber that the gap (110) of passing through formation between edge (102) and bottom surface (84) again enters between cylinder (100) and the ring segment (104) (is in the outer cylinder (108), be provided with through holes axial distribution, shape such as hole (110) in a side of this inner chamber, liquid vapour mixture can flow in filter screens (52) by these through holes.
Itself can be made filter screen (52) by the filter cloth which floor is superimposed with each other.The material of filter cloth can adopt fabric, fiber or aphrolite.If adopt fabric, width of mesh should be less than 0.036mm.
Through hole among the embodiment shown in Fig. 2 to Fig. 5 is flute profile or circle hole shape, but also can adopt other geometry.
The floor space of inner cylinder (100) for example is the 7-8 square millimeter, and the floor space of outer cylinder (108) is its 3-4 times, and promptly the 21-32 square millimeter preferably selects 26 square millimeters.
There is a plane of being convenient to hand (66) upper end of shower nozzle (48).When depressing shower nozzle (48), ejector sleeve (36) is moved simultaneously valve body (32) is pushed in the container.So air valve (28) is opened.The stroke that moves can have sealing ring 40) next spacing, promptly the lower edge (68) of the shower nozzle of wedge-like (48) withstands on this ring.Also can carry out spacing with the thrust of spring (34).
In the process that air valve (28) moves down, but foaming liquid charges into the bottom of pipe (14) through hand-hole (26).Tighten locking nut (46) then and make hand-hole (26) and air valve (28) and shower nozzle (48) closure.Pump (20) in the process container (12) produces high pressure subsequently.Apparatus for spray of foam this moment (10) can have been started working.
When depressing shower nozzle (48), air valve (28) is opened, so liquid flows into intubate (60) and enters ejector sleeve (36) via housing (30) under the effect of pressure air.Air flows into housing (30) and together supplies with ejector sleeve (36) with liquid through passage (64) simultaneously.
The fluid of being made up of liquid and the common with it air that imports enters filter screen (52) and produces foam at this behind the short hybrid element (54) of flowing through, this foam charges in the expansion chamber (54) and under the high pressure effect in container (12) and is forced out by discharge orifice (56).Air enters liquid through passage (64), its air capacity with become proper proportion by the amount of liquid of supplying with in the container (12), so just can not rely on the interior pressure of container (12) and produce stay-in-grade foam, be dry foam.
Position shown in the figure is the operating position of apparatus for spray of foam (10), is horizontal positioned at this upright position upper filter screen (52).The overlapped filter screen of multilayer can be set in shower nozzle (48).
Claims (14)
1, a kind of apparatus for spray of foam, but comprising a container (12) that is used to be installed in foaming liquid, an air valve (28), a foam drainage hole (56) and at least one are arranged on filter screen between discharge orifice and the air valve, that be used to supply with liquid vapour mixture (52), it is characterized in that, make between the filter screen (52) of liquid vapour mixture foaming at air valve (28) and at least one, be provided with one and make the well-mixed element of liquid vapour mixture (78,94).
As the described apparatus for spray of foam of claim 1, it is characterized in that 2, this element is the disc type device (98) that through hole (110) are arranged on it.
As claim 1 or 2 described apparatus for spray of foam, it is characterized in that 3, this element is the bottom surface (90,98) on the at one end uncovered hollow cylinder (80), the bottom surface is provided with through hole (92,110).
As the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that 4, through hole (92,110) is circumferentially to be provided with.
As the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that 5, through hole (92,110) is evenly distributed on disc (98) or the bottom surface.
6, as the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that, one begins from the citadel of disc or bottom surface (90,98) to extend and coaxial with the hole (50) of shower nozzle along the direction of air valve (28) at the bigger hollow cylinder in aperture, valve seat place (82,100), is equipped with a filter screen (52) in shower nozzle at least.
As the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that 7, through hole (50) is the inner chamber of sleeve (70), a rod member or a pipe fitting (36) that is used for the switch air valve vertically moves in this through hole.
As the described apparatus for spray of foam of claim 6, it is characterized in that 8, the hollow cylinder (82) that also is provided with some through holes in its edge begins to extend from the reducing part (74) that has through hole on the sleeve (72).
9, as the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that, sleeve (72) comprises three sections hollow cylindrical sections (72,74,76) that diameter is different, wherein, intermediate cylindrical section (74) thus diameter minimum form a reducing and be arranged in the outside, guide to be installed in the rod member or the pipe fitting (36) of operation air valve near the cylindrical portion (72) of air valve, maximum and have on it and be used to element (78,94) that liquid vapour mixture is mixed from the diameter of air valve cylindrical portion (76) farthest.
10, as the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that, through hole (92,110) preferably flute profile or hole shape.
As the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that 11, the cross section of each through hole (92,110) is 0.18 to 0.22 square millimeter.
12, apparatus for spray of foam as claimed in claim 11 is characterized in that, total cross-sectional area of through hole (92,110) be about element (78,94) cross-sectional area 1/18 to 1/22, be the best with 1/20.
As the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that 13, element (78,94) is from the sleeve lining extension.
As the described apparatus for spray of foam of one of above-mentioned claim, it is characterized in that 14, filter screen (52) or filter core are made by fabric, fabric or aphrolite.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4231940.4 | 1992-09-24 | ||
| DE19924231940 DE4231940A1 (en) | 1992-09-24 | 1992-09-24 | Foam spraying device |
| EPPCT/EP93/00034 | 1993-01-10 | ||
| PCT/EP1993/000034 WO1993013829A1 (en) | 1992-01-17 | 1993-01-10 | Foam-spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1090796A true CN1090796A (en) | 1994-08-17 |
Family
ID=25918800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93119606 Pending CN1090796A (en) | 1992-09-24 | 1993-09-24 | Apparatus for spray of foam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1090796A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102665924A (en) * | 2009-12-18 | 2012-09-12 | 宝洁公司 | Personal care composition foaming product and foaming dispenser |
| CN104226512A (en) * | 2014-10-09 | 2014-12-24 | 中国石油大学 | Annular metal foam straight hole nozzle of high-speed jetting device |
| CN105073272A (en) * | 2013-02-12 | 2015-11-18 | 泰索有限公司 | Foam generating spray device and spray head for use therein |
| CN107107078A (en) * | 2014-12-24 | 2017-08-29 | 花王株式会社 | Foam discharge device |
| CN108025200A (en) * | 2015-11-03 | 2018-05-11 | 沃特斯公司 | Compressed-air foam fluid mixer |
| CN109153027A (en) * | 2016-05-06 | 2019-01-04 | 梭罗机械有限公司 | For generating the foamed cell of foam by the mixture of gas and liquid and for generating and dividing barmy sprinkler |
-
1993
- 1993-09-24 CN CN 93119606 patent/CN1090796A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102665924B (en) * | 2009-12-18 | 2015-12-02 | 宝洁公司 | Personal care composition foamed products and foaming dispenser |
| CN102665924A (en) * | 2009-12-18 | 2012-09-12 | 宝洁公司 | Personal care composition foaming product and foaming dispenser |
| CN105073272B (en) * | 2013-02-12 | 2017-11-03 | 泰索有限公司 | Foam generates injection apparatus and the shower nozzle used for it |
| CN105073272A (en) * | 2013-02-12 | 2015-11-18 | 泰索有限公司 | Foam generating spray device and spray head for use therein |
| US9919347B2 (en) | 2013-02-12 | 2018-03-20 | Tetrosyl Limited | Foam generating spray device and spray head for use therein |
| CN104226512B (en) * | 2014-10-09 | 2016-05-25 | 上海交通大学 | A kind of annular metal foam straight hole nozzle of high-speed jet device |
| CN104226512A (en) * | 2014-10-09 | 2014-12-24 | 中国石油大学 | Annular metal foam straight hole nozzle of high-speed jetting device |
| CN107107078A (en) * | 2014-12-24 | 2017-08-29 | 花王株式会社 | Foam discharge device |
| CN107107078B (en) * | 2014-12-24 | 2019-06-18 | 花王株式会社 | Foam discharge device |
| US10399100B2 (en) | 2014-12-24 | 2019-09-03 | Kao Corporation | Foam dispenser |
| CN108025200A (en) * | 2015-11-03 | 2018-05-11 | 沃特斯公司 | Compressed-air foam fluid mixer |
| CN109153027A (en) * | 2016-05-06 | 2019-01-04 | 梭罗机械有限公司 | For generating the foamed cell of foam by the mixture of gas and liquid and for generating and dividing barmy sprinkler |
| CN109153027B (en) * | 2016-05-06 | 2021-08-31 | 梭罗机械有限公司 | Foaming unit for producing foam from a mixture of gas and liquid and sprinkler for producing and dispensing foam |
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