CN1161250A - Apparatus and method for metering predeterminable quantity of liquid - Google Patents
Apparatus and method for metering predeterminable quantity of liquid Download PDFInfo
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- CN1161250A CN1161250A CN 96105937 CN96105937A CN1161250A CN 1161250 A CN1161250 A CN 1161250A CN 96105937 CN96105937 CN 96105937 CN 96105937 A CN96105937 A CN 96105937A CN 1161250 A CN1161250 A CN 1161250A
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Abstract
The present invention relates to an apparatus and a method for the metering of a predeterminable quantity of a liquid, having a liquid inlet, one metering chamber and a liquid outlet, in that the quantity of the liquid delivered by the apparatus always has an identical volume and properties. Thus in the case of gassing-out liquids, it is possible to reliably ensure that a continuous metering of a bubble-free liquid is rendered possible, so as not to change the concentration. This problem is solved in the apparatus according to the invention by the features that in addition to the liquid line between the liquid inlet and the liquid outlet, a compressed air line is provided between a compressed air inlet and a compressed air outlet, and at least one metering chamber can be alternately connected to the liquid line and the compressed air line.
Description
The present invention relates to be used to measure predetermined liquid amount, especially H
2O
2Apparatus and method, have a liquid inlet, at least one measuring room and a liquid outlet.
As everyone knows, before packing that a certain amount of food is packed into, to carry out disinfection to packing.For this reason, an amount of sanitizer be sprayed, such as H in the inside of package
2O
2, so that eliminate any bacterium that is present in the package reliably.Required H
2O
2Minimum determine according to the volume of wanting the packing part.
German patent specification DE-PS 2708422 discloses a kind of the pulsation and has transmitted the equipment of gobbet, and amount of liquid can be controlled with measurement mechanism.This measurement mechanism has the measuring vessel that can charge into quite a lot of liquid, its outlet is connected with the jet member of gobbet, this measuring vessel has a sensor with upper and lower probe, and pump of its control is filled measuring vessel so that by reservoir vessel again through service.Use this pump, a predetermined filling volume liquid is supplied with measuring vessel, move needed amount continuously to guarantee liquid.Have only when the amount of measuring vessel can not reach scheduled volume, just refill measuring vessel with pump.
Can measure the H of a scheduled volume with known devices
2O
2Yet,, it is found that during liquid moves, because the minimizing of the amount of measuring vessel, the wherein H that is comprised
2O
2Gasification is emitted, and variation has taken place volume as a result.Owing to be included in H
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2In bubble, so each time during metrological operation, the H of metering
2O
2Actual amount diminished.Therefore, although press the same volume metering, concentration is still lower.Yet, during sterilizing,, do not wish to change use H in order to ensure required sterilization effect
2O
2Concentration, unless because reach Cmin, otherwise the sterilization may be inadequate.
From the above point of view, the problem that the present invention relates to is to design and further develop, before this device of the liquid that is used for metering predeterminable quantity of detailed description and corresponding method thereof, this amount of liquid by this device transmits has identical volume and identical character forever.More particularly emit in the situation of liquid, such as H in gasification
2O
2, still can guarantee the bubble-free liquid of continuous measurement, thereby guarantee that concentration is constant.
In device of the present invention, the problems referred to above have been solved by following feature.These features are: except the fluid pipeline between liquid inlet and the liquid outlet, between compressed air inlet and compressed air outlet, compressed air piping is housed, and at least one measuring room can be connected with compressed air piping with fluid pipeline alternately.
About method, solved the problems referred to above by following steps:
-be full of at least one measuring room with liquid,
-pass through to change the position of movable piece, the measuring room that closure is full of, and
The amount of liquid that-discharge has been measured.
According to another feature of the present invention, at least two measuring rooms are placed in the movable piece, make measuring room alternately be connected with compressed air piping with fluid pipeline.Above-mentioned feature can produce uniform capacity flow rate by alternately measuring two measuring rooms.Accepted by the specific measuring room of fluid pipeline flushing that bubble-free amount of liquid is corresponding with the measuring room size to mean to measure to have pin-point accuracy, and got rid of the shortcoming of prior art as described above reliably, i.e. the gasification of sensitive liquid is discharged.
According to another feature of the present invention, this movable piece is a piston that can slide at the cylinder body cathetus, and two measuring rooms are housed, and it is made of annular extending flute, and the groove of this annular extension is formed on the piston.According to such design of apparatus of the present invention, structurally simple wearing and tearing are few, and the reliability height, because according to the other design of the present invention, in each end position of piston, a measuring room is connected with fluid pipeline, and another measuring room is connected with compressed air piping.Yet, the rotatable or pivot revolving part that contains measuring room also can be provided as movable piece.
A cylinder body is used to piston guide, and this cylinder body has a main part and two end plates, will the pipeline of piston pressurization be placed on the end plate.Because piston has the end position of two qualifications, so reliably, accurately measuring room is positioned at the particular fluid inlet or the outlet dead ahead of opening down than the low technical cost.
On the cylinder body direction, piston utilizes seal sealing convenient especially in its end, and its groove that extends at the dual-side looping of measuring room is as leakage pipe.
Promptly by the feature of the specific end position of the detectable piston of sensor, further increased the reliability height of apparatus of the present invention according to other feature of the present invention.Above-mentioned feature guarantees reliably, and the position of measuring room is accurately alignment liquid or compressed air piping position forever.
In the method, if the discharging liquid measure of having measured obtains useful especially effect so, act on whole measuring room by pressurized air, the result is with the liquid formation atomized liquid that atomizes simultaneously.This situation is useful especially for planning the application of sterilization packaging food, because the result can not bigger H take place in the inside of package
2O
2Drop, and this drop is not by removing with post-flush operation.
A most preferred embodiment of the present invention will be described now in more detail.Accompanying drawing is expressed as follows:
Fig. 1 represents the longitudinal section according to apparatus of the present invention;
Fig. 2 represents according to the apparatus of the present invention that are shown in Fig. 1, along the cross-sectional view of the II-II line of Fig. 1 and 3;
Fig. 3 represents according to the sectional view of apparatus of the present invention along Fig. 2 line III-III.
The most preferred embodiment of shown device, at first have one can be in cylinder body 4 piston 1 of floating guiding, cylinder body 4 is by main part 2 and end plate 3 and 3 ' constitute.As shown in Figure 3, with screw 5,5 ' main part 2 and end plate 3; 3 ' couple together.For the purpose of making drawings clear, labelled structure member in Fig. 1 has omitted label in Fig. 3.
In illustrated embodiment, piston 1 have two measuring rooms 6 and 6 '.Be provided with in measuring room 6,6 ' both sides the groove 7,7 that extends as the annular of leakage interception vessel ', 7 ".Fig. 1 and Fig. 3 clearly illustrate that, also are provided with the groove (not expression in detail) that annular is extended in the end of piston 1, seal 8,8 ' be placed on wherein, and the liquid that is measured to prevent enters in the space of cylinder body.
Use the pressurized air via controlling plumbing fixtures 9 and 9 ' alternative supply, control piston enters into other end position by an end position.From Fig. 1 and 2 as can be seen, in the corresponding outlet of controlling plumbing fixtures (9,9 '), plug joint sleeve (not expression in detail).
As shown in Figure 3, at piston 1 in an end position, the inlet 10E ' of the liquid that is measured by liquid enter measuring room 6 ' in.Because Fig. 3 is a cross section in a plane of bending, so, in Fig. 3, can not see liquid inlet 10A.Therefore, the fluid pipeline 10 by cylinder body 4 extends is expressed as dotted line again in Fig. 2.So critical piece of the present invention is that measuring room is moved in the liquid stream that guides by fluid pipeline 10.Simultaneously, with measuring room 6 ' annular space be full of fully.
As the clear expression of Fig. 1, when the 1st measuring room 6 ' during being full of, because piston is in same position in Fig. 1 and 3, so in two figure, the 2nd measuring room 6 is connected on the compressed air piping 11 in the main part 2.Be contained in compressed air piping 11 in the main part 2 and be each other can be adaptive boring, with suitable connector 12 closed its ends, make and always have only a single compressed air inlet 11E and compressed air outlet 11A.Like this, be blown into the air that thrust is arranged of compressed air inlet 11E, not only can be emptied completely measuring room, and during metering, just produce the potpourri of atomized liquid.
As previously mentioned, when be full of measuring room 6,6 ' during, partially liq also can enter groove 7,7 ' and 7 " annular slot.Shown in Fig. 2 and 3, the measuring room that has been full of 6 or 6 of adjacent specific ' ring groove 7,7 ' or 7 ', 7 " simultaneously via corresponding leakage pipe 15,15 ' be connected to and leak outlet 14.Can intercept and re-use from the liquid that leaks outlet 14.The leakage pipe 15,15 that produces by holing ' also can seal with connector 13, and be connected in the only single leakage outlet 14.
Self-evident, utilize piston 1 sufficiently high to-and-fro movement speed and/or utilize measuring room 6,6 ', the suitable arrangement of fluid pipeline 10 and compressed air piping 11 can be regulated the basic stream of atomized liquid continuously with constant volume flow rate.
For prevent via the control air of controlling plumbing fixtures 9,9 ' guiding by main part 2 and end plate 3,3 ' between slot leakage, cylinder body 4 end region settle seal 18,18 '.In illustrated illustrated embodiments, be inserted in controlling plumbing fixtures 9,9 ' in sensor 19.19 ' also can accurately the survey specific end position of piston 1.For example, used sensor can be available on the market near switch.
Claims (9)
1. one kind is used for metering predeterminable quantity of liquid, especially H
2O
2Device, has a liquid inlet, at least one measuring room and a liquid outlet, it is characterized in that: except the fluid pipeline (10) between liquid inlet (10E) and the liquid outlet (10A), between compressed air inlet (11E) and compressed air outlet (11A), compressed air piping (11) is housed, and at least one measuring room (6) can be connected with compressed air piping (11) with fluid pipeline (10) alternately.
2. according to the described device of claim 1, it is characterized in that: at least two measuring rooms (6,6 ') are placed in the movable piece, make measuring room (6,6 ') alternately be connected with compressed air piping (11) with fluid pipeline (10).
3. according to the described device of claim 2, it is characterized in that: this movable piece is a piston (1) that can slide at cylinder body (4) cathetus, and two measuring rooms (6,6 ') are housed, it is made of annular extending flute, and this annular extending flute is formed on the piston (1).
4. according to the described device of claim 3, it is characterized in that: in each end position of piston (1), a measuring room (6 or 6 ') is connected on the fluid pipeline (10), another measuring room (6 ' or 6) be connected on the compressed air piping (11).
5. according to claim 3 or 4 described devices, it is characterized in that: cylinder body (4) has a main part (2) and two end plates (3,3 '), and the pipeline (9,9 ') that piston (1) is pressurizeed is located in the end plate (3,3 ').
6. according to the described device of each claim in the claim 3 to 5, it is characterized in that: by seal (8,8 ') in the end of piston (1) piston (1) and cylinder body (4) are sealed, and at measuring room (6,6 ') two sides be provided with annular extending flute (7 as leakage pipe, 7 ', 7 ").
7. according to the described device of each claim in the claim 3 to 6, it is characterized in that: by sensor (19; 19 ') the specific end position of detectable piston (1).
8. a use is characterized in that following steps according to the method for the described device metering predeterminable quantity of liquid of each claim in the claim 1 to 7:
(1) be full of at least one measuring room with liquid,
(2) by changing the position of movable piece, the measuring room that closure is full of, and
(3) discharge the liquid that has measured.
9. in accordance with the method for claim 8, it is characterized in that: the liquid that discharging has been measured, to whole measuring room effect, the result atomizes liquid simultaneously to form atomized liquid by pressurized air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96105937 CN1161250A (en) | 1995-02-11 | 1996-02-11 | Apparatus and method for metering predeterminable quantity of liquid |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19504556.4 | 1995-02-11 | ||
| CN 96105937 CN1161250A (en) | 1995-02-11 | 1996-02-11 | Apparatus and method for metering predeterminable quantity of liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1161250A true CN1161250A (en) | 1997-10-08 |
Family
ID=5119004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96105937 Pending CN1161250A (en) | 1995-02-11 | 1996-02-11 | Apparatus and method for metering predeterminable quantity of liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161250A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155963A (en) * | 2011-03-10 | 2011-08-17 | 浙江流遍机械润滑有限公司 | Volumetric flow sensor |
| CN102423665A (en) * | 2005-04-25 | 2012-04-25 | 高级技术材料公司 | Liner-based liquid storage and dispensing systems with empty detection capability |
| US9079758B2 (en) | 2005-06-06 | 2015-07-14 | Advanced Technology Materials, Inc. | Fluid storage and dispensing systems and processes |
| CN111622739A (en) * | 2020-07-03 | 2020-09-04 | 东营正大金属制品有限公司 | Unpowered automatic metering device and method for oil well drainage |
-
1996
- 1996-02-11 CN CN 96105937 patent/CN1161250A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423665A (en) * | 2005-04-25 | 2012-04-25 | 高级技术材料公司 | Liner-based liquid storage and dispensing systems with empty detection capability |
| US9073028B2 (en) | 2005-04-25 | 2015-07-07 | Advanced Technology Materials, Inc. | Liner-based liquid storage and dispensing systems with empty detection capability |
| US9802749B2 (en) | 2005-04-25 | 2017-10-31 | Entegris, Inc. | Liner-based liquid storage and dispensing systems with empty detection capability |
| US9079758B2 (en) | 2005-06-06 | 2015-07-14 | Advanced Technology Materials, Inc. | Fluid storage and dispensing systems and processes |
| US9802808B2 (en) | 2005-06-06 | 2017-10-31 | Entegris, Inc. | Fluid storage and dispensing systems and processes |
| CN102155963A (en) * | 2011-03-10 | 2011-08-17 | 浙江流遍机械润滑有限公司 | Volumetric flow sensor |
| CN111622739A (en) * | 2020-07-03 | 2020-09-04 | 东营正大金属制品有限公司 | Unpowered automatic metering device and method for oil well drainage |
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