• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a conditioning device for conditioning a fluid mixture in a flow-through systems and / or measuring system, such as in a milking installation for milking mammals, the device comprising: - a conditioning chamber, - an input for entering the fluid mixture in the conditioning chamber, - an outlet for outputting the fluid mixture from the conditioning chamber, - at least one conditioning chamber wall for providing a conditioning effect to the conditioning device. The present invention furthermore relates to a mass flow rate measuring device comprising such a conditioning device as well as a method for conditioning.
    公开号:NL2015207A
    申请号:NL2015207
    申请日:2015-07-22
    公开日:2016-11-21
    发明作者:Cornelis Johannes Kromwijk Antonius；Jan Kobus Harmen
    申请人:Fusion Electronics B V；
    IPC主号:
    专利说明:

    CONDITIONING DEVICE, MASSADE BEET METER AND METHOD
    The present invention relates to a conditioning device for conditioning a fluid mixture, such as in a flow-through system and / or measuring system, such as in a milking installation for milking mammals. The present invention furthermore relates to a mass flow measuring device for determining a mass flow of a fluid, such as comprising milk, such as for a milking installation for milking mammals, comprising a conditioning device according to the present invention. Furthermore, the present invention relates to their respective method of conditioning and measuring.
    The present applicant has an international patent application WO 2013/165236 directed to a mass flow measuring device for a milking system. The publication of this international patent application is hereby incorporated by reference for the purpose of the post-workability of a mass flow-measuring device. It is a characteristic of a milking system that the milk is withdrawn from the mammal such as the cow. As a result, liquid strokes or slugs with a high irregularity with regard to the pressure in the pipe and the mass flow occur in the discharge pipes. Another way of formulating this is that quantities of liquid with a higher kinetic energy are alternated by quantities of gas. It is advantageous to make a quantity measurement for the milk when a uniform flow is passed through the quantity meter.
    To this end, the present invention provides a conditioning device for conditioning a fluid mixture in a flow-through system and / or measuring system, such as in a milking installation for milking mammals, the device comprising: - a conditioning chamber, - an input of the introduction of the fluid mixture- in the conditioning chamber, - an output for outputting the fluid mixture from the conditioning chamber, - at least one conditioning chamber wall for providing a conditioning action along the conditioning chamber wall to the conditioning device.
    An advantage of the present invention is that the conditioning effect is provided by the conditioning chamber wall so that the fluid is passed through the outlet conditioned. Because the conditioning action is provided by the conditioning chamber wall along the conditioning chamber wall, a substantially pulsed or blow-in introduced fluid is performed relatively uniformly. The relatively evenly executed fluid can be measured reliably. Furthermore, a kickback due to air pressure differences in the system and for air pressure differences due to the stroke-wise transport is prevented, which increases the reliability of the measurements. A further advantage is that kinetic energy is absorbed from the beats along the conditioning chamber wall and as a result the flow becomes calmer.
    In a first preferred embodiment, the conditioning device comprises flow influencing means, such as blades, fins, ribs, slots and / or a coating. As a result, the operation of the conditioning chamber wall is further increased by the inhibitory action of the flow influencing means.
    More preferably in the conditioning device the at least one conditioning chamber wall comprises a side wall and a bottom wall, more preferably an upper wall. This allows the effect to be spread over different wall parts. Furthermore, the bottom wall and the space between the bottom wall and side wall provides a volume of moderately caring effect.
    The at least one conditioning chamber wall further preferably comprises a bottom wall or bottom wall part with a gradient towards the outlet, preferably wherein the bottom wall or the bottom wall part comprises ridges or slots for retarding a fluid flowing over it. An advantage of such a stated is that such a bottom wall can easily be rinsed clean after use.
    In a further preferred embodiment, the conditioning device during use provides an effect that, as fluid flows, pressure fluctuations due to a blocking action of the fluid such as a liquid, between the conditioning chamber wall and a downstream space, such as measuring a liquid, or preventing discharge lines . This effect increases the reliability of the measurement and the regularity of the. flow in the downstream section improved.
    In a further preferred embodiment, the conditioning device during use provides an effect that a pulse-wise supply of liquid through the inlet is converted into a stream-like outlet of liquid through the outlet. Even then, the effect improves the reliability of the measurement and regularity of the flow in the downstream section.
    To this end, among other things, the conditioning device comprises flow influencing means against a side wall, wherein flow influencing means are preferably elongated, and more preferably have a higher effect on the upper side thereof than on the lower side, preferably performed by a relatively high top descending near the upper side towards a relatively low foot at the bottom. Due to the relatively high top near the top, this liquid flowing against a side wall is braked or forced downwards relatively strongly. Due to the relatively low foot on the underside, the flow along the lower part of the side wall is slowed down relatively little, so that it slows down evenly. As a result, a volume buffering action is achieved on site for holding liquid when the strokes are relatively large and / or frequent.
    It is important that the conditioning device can handle both the minimum flow rate and the maximum flow rate within a predetermined bandwidth, regardless of the intensity of the strokes with which this is supplied. The shape of the space provides a buffer for this purpose.
    The at least one conditioning chamber wall further preferably comprises a side wall or side wall part which preferably extends substantially vertically, more preferably extends outwards at an angle from the bottom side, more preferably extends from the bottom side at an angle inwards. Depending on the predetermined bandwidth with regard to the minimum flow to be processed as maximum flow as variability in the strokes of a person skilled in the art, within the concept of the present invention define a suitable wall configuration.
    In a further preferred embodiment the inlet during use is directed in a horizontal direction to the conditioning chamber, more preferably arranged in such a way to the conditioning chamber wall that a fluid flow is directed so that it flows along the wall. This provides the advantage that a downward, relatively large, spiraling stream is realized along the walls or wall parts. Furthermore, it is realized that the flow through the outlet also flows along the edges relatively to a large extent, at least to a greater extent than without a central inlet running along the wall and to a greater extent than the usual tendency of a liquid to flow along the wall .
    Preferably, the conditioning chamber wall comprises a cavity for holding a quantity of fluid for carrying out resistivity measurements, the cavity preferably being suitable for arranging therein at least 2 electrodes for carrying out the measurements. This makes it possible to already integrate a resistivity meter in the conditioning chamber wall, as a result of which a mass flow measuring device can be arranged under the conditioning chamber. This makes it possible to minimize the overall height of the device, which is of great advantage in practice in certain arrangements.
    More preferably, an effect of the conditioning is that a virtual bypass is provided during the flow and conditioning of a liquid, the virtual bypass being arranged substantially coaxially in the output. Such a virtual bypass can be considered as a liquid-free core of a vortex, with the particular advantage in the present case that an open gas connection is realized by means of this virtual bypass between, for example, a supply line of a milking installation and the conditioning chamber wall.
    Therefore, more preferably, one of the effects of the conditioning is that a liquid is brought into a rotational flow with respect to the conditioning chamber wall.
    The device furthermore preferably comprises coupling means for coupling with a mass flow meter or a liquid meter. This achieves the aforementioned advantage of the low overall height.
    The conditioning chamber has a wall preferably at the top of the inlet space for free flow of liquid.
    In a further preferred embodiment, the inlet is arranged for an inlet from a top side, preferably further provided with spreading means for laterally spreading the fluid, more preferably with a spiraling effect. These preferred embodiments have, inter alia, advantages in arrangements in which the measuring unit is arranged under a milking installation or on the underside thereof.
    A further embodiment comprises a return conduit external to the conditioning chamber and outlet which can be connected between an outlet space of the outlet and the conditioning chamber wall. In this way, a relief of the conditioning chamber wall on, for example, a discharge line becomes possible.
    Further preferred embodiments according to the invention relate to a conditioning device for conditioning a fluid mixture in a flow-through system and / or measuring system, such as in a milking installation for milking mammals, the device comprising: - a conditioning chamber, - an input of inputting the fluid mixture in the conditioning chamber, - an output for outputting the fluid mixture from the conditioning chamber, - at least one conditioning chamber wall for providing a conditioning effect to the conditioner device, - at least one upright or slat for influencing transfer of the fluid mixture from the conditioning chamber to the output.
    This achieves that a part of the fluid mixture will leave the chamber in a delayed manner, depending on the configuration of the at least one upright or slat. As a result, in a suitable manner, the flow is partly passed through and partly remains outside the upright or the slat. A volume of the fluid mixture will then gradually flow through openings between the slats in the outlet. As a result, unevenly supplied volumes of the fluid mixture are temporarily retained, so that the outflow volume is more homogeneous, or at least shows a more uniform flow.
    To this end, a conditioning device preferably comprises a number of uprights or slats arranged in a substantially ring shape around the outlet.
    More preferably, the at least one upright or slat covers more than 30% of the circumference, preferably more than 40%, more preferably more than 50%, 60%, 70%, 80% and / or 90% of a circumference of covers the outlet or an annular area around it, preferably in top view during use. This ratio is dependent on expected flow variations in the supply of the fluid mixture and the desired variations of the flow to the discharge. Those skilled in the art can determine a predetermined ratio within the understanding of the present invention.
    A further aspect of the present invention relates to a mass flow rate measuring device for determining a mass flow rate of a fluid, such as comprising milk, such as for a milking installation for milking mammals, comprising a conditioning device according to the present invention. An advantage of such a mass flow rate measuring device is that it can be measured using the positive effects of the conditioning device.
    A further aspect according to the present invention relates to a method for conditioning a liquid comprising steps for: - withdrawing kinetic energy from a pulsating fluid stream, and / or - minimizing pressure differences between a conditioning space or a supply line and a discharge line . An advantage of such a method is that it is possible to measure using the positive effects of a conditioned stream.
    According to a first preferred embodiment for use using a device according to the present invention. An advantage of such a method is that it is possible to measure using the positive effects of the conditioning device.
    Further advantages, features and details of the present invention will be described in greater detail below with reference to one or more preferred embodiments with reference to the attached figures. Similar but not necessarily identical components of different preferred embodiments are designated with the same reference numerals.
    FIG. 1 A-C relates to a first preferred embodiment according to the present invention in three views.
    FIG. 2A relates to a detailed representation of the preferred embodiment according to FIG. 1 and FIG. 2 B relates to a representation of a further preferred embodiment.
    FIG. 3 A-F relates to representations of preferred embodiments with different embodiments of conditioning walls.
    FIG. 4 relates to a further preferred embodiment according to the present invention.
    FIG. 5 A, B relates to a further preferred embodiment according to the present invention.
    FIG. 6 and 7 each show a cross-sectional view of a conditioning chamber according to a further embodiment of the present invention.
    FIG. 8 shows a part according to the invention comprising cast-in electrodes for the outflow of the conditioning chamber or a mass flow meter according to the present invention.
    A first preferred embodiment (Fig. 1) according to the present invention relates to a conditioning device 1. This comprises conditioning chamber 2 which is formed by a conditioning chamber wall comprising a conically arranged top wall 4, a substantially vertically arranged side wall 6 and a bottom wall 8.
    A fluid inlet 10 is arranged near the top of vertical wall part 6. This inlet runs such that inflowing liquid is pushed along or against the inside of the belt and 6. Vanes or fins 12 are arranged on the inside of the wall. These blades 12 serve to brake the liquid flow that is introduced along the wall. At the top the vanes seen from the wall have a relatively high top while the vanes seen at the bottom have a relatively low foot. As a result, the liquid is braked harder at the top than at the bottom, whereby a circulating flow can be maintained at the bottom, or at least sufficiently maintained for the creation of a liquid buffer through the circulating flow.
    The bottom 16 of the conditioning chamber wall slopes slightly at a predetermined angle alpha. The size of this angle determines the buffering effect of the space that is determined by the bottom and the belt.
    There are ridges 14 on the bottom which also provide a braking action to the flowing, preferably circulating, flowing liquid. The drain line 18 is located centrally in the bottom.
    In FIG. 2 shows an example of a liquid as it may be present between supplying 2 liquid strokes. The foregoing liquid stroke has already been decelerated by the top of the blades and is present in the bottom of the conditioning chamber, forced against the bottom and the side wall by the circulating flow.
    Due to the braking action of the walls, the ridges and the blades, the liquid flows gradually into the discharge line 18. It is important for the present invention that the liquid flows along the walls of the discharge line 18, so that a gas passage space 20 remains available during the outflow of the liquid. By appropriately selecting predetermined mutual dimensions, an optimally functioning conditioning device can be designed by a person skilled in the art within the understanding of the present invention. Depending on the expected flow rate, intensity of flow and strokes and, for example, the volume per minute, it is provided that several conditioning devices are arranged in parallel. It is further provided that, depending on the incidentally required capacity, some conditioning devices are switched on or off.
    In FIG. 2A shows how liquid space 17 is arranged in the bottom 16 and for receiving electrodes for a resistance meter. This allows the resistance of the currently treated liquid to be determined. In FIG. 2B shows a variant of the liquid space 17 'in which the liquid flows in at the top side chamber and through this a very small opening 19 flows out through the discharge line 18. As a result, the liquid is constantly renewed, so that the resistance of the currently treated liquid is always can be measured.
    Figures 3A - 3t 'show schematic representations of the shape of the conditioning chamber wall. In FIG. 3 A, a relatively large buffer is present at the bottom. The shape of the side wall, however, causes a relatively rapid drop in the liquid. In FIG. 3 B, the liquid is introduced relatively low with a relatively large buffer at the bottom. Only with large strokes is the liquid pushed higher against the side wall. In FIG. 3 C shows an embodiment in which virtually no bottom part is present. This embodiment has a relatively low buffer effect and can therefore be applied with relatively small strokes. FIG. 3 D and FIG. 3E show a configuration with a very rapid fall due to the shape of the side wall. The relatively wide bottom part nevertheless provides a relatively large buffer for processing. The difference is a shape of the ribs in the side wall of these parts. In FIG. 3F shows a shape with also virtually no bottom, and even no ribs, whereby the effect of the deceleration is achieved in particular by the conditioning effect of the side wall as well as by the inflow direction of the strokes. This embodiment is hereby suitable for relatively fast strokes, preferably when these are relatively small.
    FIG. 4 shows an embodiment in which an external bypass 31 extends from an output space 32, which is designed in a practical manner as a training in a milking system for a farm, to the top of the conditioning chamber 2. As a result, alternative methods are used. they realize that when the liquid volume through the outlet 18 prevents these fully occupied pressure differences blocking the flow.
    In FIG. 5A, a mass flow meter 40 is mounted directly below the conditioning device. From the outside, the electrodes 41, 41 ', 42, 42' are shown, the operation of which corresponds to that of the measuring device according to the said PCT publication. Similarly, in FIG. 5B schematically shows an alternative variant.
    In FIG. 6 and 7 show sectional views of the conditioning chamber shown with the slats or posts according to the present invention. There is a conditioning chamber with a bottom wall 16 and a side wall 6 which is provided with fins 12 with a similar function as in the above embodiments. The outflow channel with wall 18 also has a similar function as in the earlier embodiments. Slats 51 are arranged around the mouth of the outflow channel for influencing the flow of the liquid mixture so that when an excess of liquid flows in, it flows out evenly. It is advantageous here if the outflow is such that not the entire surface of the outflow channel is full, so that no pressure differences occur in the outflow channel between the supply and the outlet of the device. The bottom has an opening 17 for measuring therein the resistivity of the currently present mixture. -
    The channel has electrodes 61,62,63,64 which are arranged in the wall. These electrodes are provided with respective wires 61 ', 62', 63 ', 64'. These wires are applied by means of a welding operation before the electrodes are cast into the wall material. It is provided to place these electrodes in a separate electrode holder (Fig. 8) or directly in the wall of the channel. This electrode holder can be used separately or can form the wall 18 of an outlet.
    An advantageous method of manufacturing comprises the following steps. First the electrodes are punched out of a metal plate. Subsequently, the electrodes are accurately arranged with respect to a metal tube 68 around which the openings fit in the electrode. These electrodes are then welded to this tube. The connecting wires are welded to the electrodes before injection molding takes place. The tube is then arranged in an injection mold, after which the whole is cast in a suitable plastic.
    The wall of the output channel is then manufactured by means of a milling operation, in which the whole of the temporary tube 68 and an inner edge of the electrode are milled away in one operation. This creates a flat channel wall18.
    A further aspect of the present invention relates to a method for manufacturing a sensor, preferably for a flow-through system or mass flow meter, comprising steps for: - attaching, preferably by welding, to a temporary support member, such as a tubular member, of at least two annular electrodes, - forming a body around at least the electrodes by means of a molding operation such as casting or injection molding, - removing material for forming a channel wall in which the electrodes form by means of a mechanical removal operation, such as milling making the channel wall or being in contact with it after this operation.
    Further steps provided according to preferred embodiments according to this aspect relate to removing the temporary support member as part of the steps of the removal operation, and optionally material from the electrode and / or material formed by the forming operation.
    A further preferred embodiment comprises steps for attaching to the electrode and / or an arm-shaped member extending from the electrode, such as by welding a wire for transporting signals from and / or to the electrodes. When these wires are attached by means of, for example, welding, certain types of injection molded material would be damaged if this was carried out after the injection molding. In these cases it is advantageous according to this embodiment that first the electrodes are provided with the wires and then the injection molding is carried out.
    The removal operation is advantageous here because the electrodes can be positioned very firmly and accurately and the removal member and the support member are only removed after the casting operation. Removal operations that are provided include drilling, milling, grinding, cutting, etc. A further advantage of a removal operation is that a blanking edge that can be left behind when the electrodes are punched out of a metal plate also into a edit can be deleted.
    It is provided to form the electrodes in an element to be separately formed. However, it is also provided to insert the electrodes into a wall of a channel that serves as the outflow channel of a conditioning device according to the present invention. A further aspect relates to a mass flow meter with conditioning chamber comprising a molded-in space for holding electronics such as measuring electronics. To this end, the lower half of the device comprises, relative to the upper half, a liquid-tight space for holding electronic elements.
    In the foregoing, the present invention has been described with reference to a few preferred embodiments. Different aspects of different embodiments are considered described in combination with each other, whereby all combinations that are considered to be read by a person skilled in the art on the basis of this document are included in the understanding of the invention. These preferred embodiments are not limitative of the scope of this document. The rights requested are defined in the appended claims.
    权利要求:
    Claims (24)
    [1]
    A conditioning device for conditioning a fluid mixture in a flow-through systems and / or measuring system, such as in a milking installation for milking mammals, the device comprising: - a conditioning chamber, - an input of the introduction of the fluid mixture into the conditioning chamber - an output for outputting the fluid mixture from the conditioning chamber, - at least one conditioning chamber wall for providing a conditioning effect to the conditioning device.
    [2]
    A conditioning device as claimed in claim 1 comprising flow influencing means, such as blades, fins, ribs, slots and / or a coating.
    [3]
    A conditioning device according to claim 1 or 2, wherein the at least one conditioning chamber wall comprises a side wall and a bottom wall, more preferably a top wall.
    [4]
    A conditioning chamber according to claim 1, 2 or 3, wherein the at least one conditioning chamber wall comprises a bottom wall or bottom wall part with a gradient towards the outlet, preferably wherein the bottom wall or the bottom wall part comprises ridges or slots for retarding a fluid flowing over it.
    [5]
    A conditioning device according to any one of the preceding claims, wherein during use the conditioning device provides an effect which, while fluid flows, measures pressure fluctuations due to a blocking action of the fluid such as a liquid, between the conditioning chamber wall and a downstream space, such as a liquid, or drain pipes are prevented.
    [6]
    A conditioning device as claimed in one or more of the preceding claims, wherein during use the conditioning device provides an effect that a pulse-wise supply of liquid through the input is converted into a stream-like discharge of liquid through the output.
    [7]
    A conditioning device as claimed in one or more of the foregoing claims, comprising flow influencing means against a side wall, wherein flow influencing means are preferably elongated, and more preferably have a greater effect on the upper side thereof than on the lower side, preferably performed by a relatively high top near the top, descending to a relatively low foot at the bottom.
    [8]
    A conditioning device according to one or more of the preceding claims, wherein the at least one conditioning chamber wall comprises a side wall or side wall part which preferably extends substantially vertically, more preferably extends outwards at an angle from below, more preferably from below below goes in a corner.
    [9]
    9. Conditioning device according to one or more of the preceding claims, wherein during use the inlet is directed in a horizontal direction to the conditioning chamber, and is further preferably arranged in such a way towards the conditioning chamber wall that a fluid flow is directed so that it flows in along the wall.
    [10]
    A conditioning device as claimed in one or more of the preceding claims, wherein the conditioning chamber wall comprises a cavity for holding a quantity of fluid for carrying out resistivity measurements, preferably wherein the cavity is suitable for arranging at least 2 electrodes for carrying out therein of the measurements.
    [11]
    A conditioning device according to any one of the preceding claims, wherein an effect of the conditioning is that a virtual bypass is provided during the flow and conditioning of a liquid, the virtual bypass being arranged substantially coaxially in the output.
    [12]
    A conditioning device according to one or more of the preceding claims, wherein one of the effects of the conditioning is that a liquid is brought into a rotational flow with respect to the conditioning chamber wall.
    [13]
    A conditioning device as claimed in one or more of the preceding claims, comprising coupling means for coupling with a mass flow meter or a liquid meter.
    [14]
    A conditioning device according to one or more of the preceding claims, wherein there is room at the top of the inlet for free flow of liquid.
    [15]
    A conditioning device according to one or more of the preceding claims, wherein the inlet is arranged for an inlet from a top side, preferably further provided with spreading means for laterally spreading the fluid, more preferably with a spiraling action.
    [16]
    A conditioning device according to one or more of the preceding claims, comprising a return line external to the conditioning chamber and outlet which is connectable between an outlet space of the outlet and the conditioning chamber wall.
    [17]
    A conditioning device as claimed in one or more of the preceding claims, comprising at least one post or slat for influencing transfer of the fluid mixture from the conditioning chamber to the outlet.
    [18]
    A conditioning device according to claim 17 comprising a number of uprights or slats arranged in a substantially ring shape around the output.
    [19]
    A conditioning device according to one or more of the preceding claims 17-18, wherein the at least one upright or slat is more than 30% of the circumference, preferably more than 40%, more preferably more than 50%, 60%, 70% Covers 80% and / or 90% of a circumference of the outlet or an annular area around it, preferably in top view during use.
    [20]
    A mass flow rate measuring device for determining a mass flow rate of a fluid, such as comprising milk, such as for a milking installation for milking mammals, comprising a conditioning device according to one or more of the preceding claims
    [21]
    A method for conditioning a liquid comprising the steps of: - extracting kinetic energy from a pulsating fluid stream, and / or - minimizing pressure differences between a conditioning space or a supply line and a discharge line.
    [22]
    A method according to claim 18 for use using a device according to one or more of claims 1-20. 23. A conditioning device for conditioning a fluid mixture in a flow-through systems and / or measuring system, such as in a milking installation for milking mammals, the device comprising: - a conditioning chamber, - an input for entering the fluid mixture in the conditioning chamber, - an output for discharging the fluid mixture from the conditioning chamber, - at least one conditioning chamber wall for providing a conditioning effect to the conditioning device, - at least one upright or slat for influencing transfer of the fluid mixture from the conditioning chamber to the output. 24. A conditioning device according to one or more of the preceding claims 1-20 comprising a device according to claim 23.
    [25]
    A conditioning device as claimed in one or more of the preceding claims, comprising a number of uprights or slats arranged in a substantially ring shape around the outlet.
    [26]
    A conditioning device according to one or more of the preceding claims, wherein the at least one post or slat is more than 30% of the circumference, preferably more than 40%, more preferably more than 50%, 60%, 70%, 80% and / or covers 90% of a circumference of the outlet or an annular area around it, preferably in top view during use.
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    同族专利:
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    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/NL2015/050335|WO2016182432A1|2015-05-12|2015-05-12|Conditioning device, mass flow meter and method|
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