WO2006056458A2

WO2006056458A2 - Channel for collecting and guiding flowable substances and the use thereof

Info

Publication number: WO2006056458A2
Application number: PCT/EP2005/012628
Authority: WO
Inventors: Günter Schierjott
Original assignee: Schierjott Guenter
Priority date: 2004-11-25
Filing date: 2005-11-25
Publication date: 2006-06-01
Also published as: EP1937411A2; DE102004056912B3; WO2006056458A3

Abstract

The invention relates to a channel whose cross-section (Q) has a contour (13), a) wherein the contour (13) comprises a first linear section (14) “bottom” and at least one second linear section (15) “lower leg”, the lower leg (15) and the bottom (14) form an obtuse angle (α) in the channel (7); b) the contour (13) comprises at least a third linear section (16) “top leg”, wherein said top leg (16) and lower legs (15) form an angle (β) in the channel (7); c) wherein the contour (13) comprises at least one fourth linear section (17) “internal leg”, wherein said “internal leg” (17) and the top leg (16) form an angle (Ϝ); d) and wherein the (a+ß+y) sum of angles formed between the bottom (14) and the lower leg (15), between the lower leg (15) and the top leg (16) and between the top leg (16) and internal leg (17) is equal to or greater than 270°. The use of the inventive channel in a sampling holder for analytical devices is also disclosed.

Description

Gutter for collecting and directing fluent substances and their use

The invention relates to a channel which describes a contour in a cross section,

a) wherein the contour comprises a first linear section "bottom", and at least a second linear section "lower leg", wherein lower leg and bottom include an obtuse angle within the channel,

b) wherein the contour comprises at least a third linear section "upper leg", wherein thigh and lower leg enclose an angle within the channel,

c) wherein the contour comprises at least a fourth linear section "inner leg", wherein inner leg and thigh enclose an angle within the channel,

d) and wherein the sum of the angles between the bottom and lower leg, between lower leg and thigh and between thigh and inner leg is at least 270 °

and their use for a sampling rack for analysis equipment such as gauges, shut-off and regulating fittings, coolers, filters or the like, which serve in particular, from streams in apparatus or equipment sample removed for examination, the sampling rack having an upwardly open, troughed channel disposed below the analysis means and designed to catch substances falling down upon gravity sampling, to collect them and optionally together with effluent cooling media to derive defined.

Sampling stations of the aforementioned type can be found in many chemical plants or in power plants. Their function consists in carrying analysis devices such as measuring devices, fittings, coolers, filters or the like in a comfortably accessible height so that the quality control personnel can take samples in an ergonomically favorable position and examine them.

Conventional sampling racks are equipped with an upwardly open channel of rectangular cross-section. The upwardly facing opening is usually covered with a perforated plate. The perforated plate serves as a storage area for laboratory bottles and as a storage area for tools and disassembled fittings. A gutter with perforated metal is similar to a Tresendrainage, which is found under gastronomic dispensing taps. The function of counter drainage and the gutter of the sampling rack is the same: both absorb spilled or overflowed liquids, collect and disperse them if necessary. At the same time larger items can be parked on her.

In the case of present sampling frames, flowable substances are frequently released as soon as the removal fittings are opened. Dripping liquids penetrate through the perforated plate into the gutter and are drained off via a drain pipe.

A disadvantage of the conventional sampling rack is that the perforated plate is difficult to clean. In addition, it often happens that the personnel remove cylindrical parts of the analysis devices, such as the jacket of a cooler and deposits it in view of its high weight on the perforated plate. Due to its cylindrical shape can the jacket of the radiator roll and fall down. There is therefore a great risk of accidents for the analysts working on the test frame.

The invention therefore has the object of developing a sampling frame of the known type such that it is easy to clean, and that fitting parts and tools can be safely stored on the gutter. In addition, the channel must be stable even at long lengths and kosten¬ cheap to manufacture.

It has been found that this problem can be solved with a gutter of the type mentioned.

Surprisingly, it has been shown that the channel with thigh and inner leg due to their special geometry can be used manifold and advantageous not only in sampling stands, but also in completely different applications. Thus, it is conceivable to use them universally for conducting and / or collecting flowable substances such as liquid channels or fluidized bulk materials. In particular, it is advantageous to provide the channel with a lid.

The angular and longitudinal ratios of the linear sections depend on the particular application; they are to be optimized with regard to the flow cross-section and the surface moment of the channel.

The optimization of the general groove contour for a sampling frame leads to the above-mentioned right angle ß between the thigh and lower leg and at an acute or at most right angle γ between inner leg and thigh. However, other inserts may require different parameter values for the angles β and γ. However, in order to maintain the generally advantageous contour of the channel, the sum of the two angles β and γ and the always obtuse angle α must always be at least 270 °. Contours have proved to be particularly universal, the thighs are shorter than the lower leg. The lower leg can in turn be longer than the inner leg. Moreover, the contour can be parameterized as described below for the particular application in the sampling frame.

The channels designed according to the invention can be used for transporting a large number of "flowable" substances, including not only liquid or fluid substances, but also solid substances, such as bulk material, which can be conveyed in such channels This happens with a suitable inclination of the grooves, by gravity or by vibrators or vibrators that impart a conveying direction to the solid material to be conveyed Such vibratory conveyors are particularly for the transport of mining products and bulk material, but also in sorting and in the production and Distribution of building materials used as well as in the agriculture / food industry in the transport and processing of agricultural products.

For the promotion, it may be expedient to provide the gutters with a non-slip and / or damping coating or such a coating, for example made of rubber or plastic. In this way, uphill mining is possible as well as the promotion of sensitive goods. Furthermore, there is a noise attenuation. Such a coating may for example also have a pattern of knobs or ribs.

Another variant is the equipment of the jacket plate with a profiling, for example of ribs or knobs, which are drawn into the metal. Such profiles make it possible to promote rollable goods at a shallow angle, without the goods being rolled or slipping.

The invention accordingly also relates to a sampling rack in which the channel consists of a jacket plate and of two side plates flanking the jacket plate on both sides. The jacket sheet is to be bent in such a way that it is in a parallel to the side plates cross-section Contour describes that includes multiple linear sections. In this case, the contour should comprise at least a first linear section "bottom" and a second linear section "lower leg", wherein the lower leg and bottom include an obtuse angle within the channel.

Thanks to the obtuse angle between the lower leg and the floor, the jacket plate can easily be folded. If the jacket plate is welded to the two side plates, created in this way an extremely stable and cost-effective channel. Troughs for conveying purposes can have no side plates or only one end plate on one side. In such a case, it may be expedient for larger lengths of the gutter to stabilize it at its open top at regular intervals with welded over ironing. If storage legs are provided on the upper side, cover sheets which serve the same purpose can be welded onto the storage legs. The obtuse angle between lower leg and bottom is in particular 100 ° to 130 ° and preferably about 110 °. The channel receives despite a small wall thickness a high surface moment, whereby the channel is self-supporting even over long sections.

The contour is expediently further developed by at least one third linear section "thigh", which forms an angle of> 70 ° and preferably a right angle with the lower leg within the channel.

A further expedient refinement of the contour consists of a fourth linear section "inner leg", which encloses either an acute angle of preferably> 70 ° or a right angle with the thigh The inner leg forms a kind of inlet funnel for the gutter, so that dropping fabric samples are safe be caught.

In order to further improve the laying down of fitting parts in the channel, the present invention proposes to additionally incorporate into the contour at least a fifth linear section "bearing leg" which extends horizontally and increases stability. In principle, all of the aforementioned limbs can be single or double. Depending on the load, the contour must be symmetrical or asymmetrical. A symmetric geometry increases the polar moment of resistance of the channel. An asymmetric contour may be advantageous for off-center loads.

Advantageously, the gutter, which is open at the top, is equipped with a lid by means of which the gutter can be closed. The lid is in a closed position on the storage legs and is sealed with respect to these. The lid prevents unwanted foreign matter from entering the gutter or leaving environmentally harmful media being conveyed through the gutter. Such a cover increases the torsional stiffness when it is fitted or welded in a form-fitting manner.

The contour can be further stiffened with the help of ribbed plates. The ribbed sheets are to be placed on the storage leg and welded on both sides, so that the ribbed sheet spans the gutter like a bridge. By this measure, the ribbed sheets serve as an additional storage area for small fittings parts and tools that are not supported by the storage leg.

In addition, it is conceivable to provide the channel on its underside with triangular ribbed plates which extend either along the groove longitudinal axis or are employed at an angle of approximately 45 ° or 90 ° thereto.

If the collected substances are to be returned to the circulation of the apparatus or disposed of, it is recommended to drain a drain pipe in the channel.

The present invention will now be explained with reference to embodiments of a sampling frame with a channel according to the invention. Show it:

Fig. 1: Inventive sampling frame in

Front view; Fig. 2: Inventive sampling frame in side view;

Fig. 3: first embodiment of the channel in cross-section Q;

Fig. 4: second embodiment of the channel in cross-section Q;

Fig. 5: jacket sheet of the first embodiment of Figure 3, in perspective;

Fig. 6: general contour of the channel in cross section Q.

A sampling frame 1 is shown in front view in FIG. It comprises a frame 2, on the center of a dashboard 3 is mounted. On the instrument panel 3 in turn several analysis devices 4 are arranged. These include, but are not limited to, measuring devices 4a, shut-off and regulating valves 4b, radiators 4c and filters 4d. The sampling frame 1 is supplied via lines 5 with cooling medium, with which some of the analysis devices 4 are fed. With the help of the analysis devices 4 samples taken from the apparatus or the (chemical) plant are prepared for examination, eg. B. relaxed, cooled or filtered.

As can be seen well in FIG. 2, below the instrument panel 3, an upwardly open channel 7 is attached to the frame 2 of the trial frame 1. Dripping liquids, which are released mainly when opening the bleeder valves 4b, are collected in the channel 7 and are discharged via a drain pipe 9 defined. Also, the trough 7 continuously forwards heated cooling medium which has passed through the analysis devices 4. If a part of an analysis device 4 has to be detached to remove the substance sample, the detached part can be deposited directly in the gutter 7 located underneath. There it can drip and is protected against rolling. FIG. 3 shows a first exemplary embodiment of a channel according to the invention in a cross section Q. The channel 7 is formed by three sheets welded together, namely a jacket plate 10 and two side plates 11a, 11b flanking the jacket plate 10 on both sides. In Figure 3, only one side plate 11a is drawn, which extends in the plane of the drawing and is thus aligned parallel to the cross-section Q. The side plate 11a occupies a trapezoid-like surface and, with a lower triangular region 12, forms a type of console which supports the channel 7.

The jacket sheet 10 is angled so that it describes in cross-section Q a polygonal and symmetrical contour 13, which consists of a total of nine linear

Composed of sections. A first linear section 14 forms the bottom of the channel 7. Towards the bottom, a second linear one follows

The bottom 14 and lower leg 15 together form an obtuse angle α on the inside of the channel 7. The obtuse angle α is 110 ° in this case.

The lower leg 15 is adjoined by a third linear section "upper leg" 16, which encloses a right angle β with the lower leg 15.

Along the contour 13, the thigh 16 is followed by a fourth linear section 17 "inner leg", which includes an acute, right or obtuse angle γ with the thigh 16 on the inside of the channel 7. In the exemplary embodiment shown in FIG γi 90 °, in the second embodiment shown in Figure 4, the angle γ = γ _2, however, is 70 °.

Finally, a fifth linear section 18 "storage leg", which extends horizontally, follows the inner leg 17. The storage leg 18 serves as a storage surface for laboratory bottles and parts of fittings The side plates 11a, 11b prevent these items from rolling on.

Due to the symmetrical structure of the contour 13, the above-described linear portions 15, 16, 17 and 18 are double, so that the Contour 13 plus the simple existing bottom 14 composed of a total of nine linear sections.

Optionally, the channel 7 is made of several, not shown here

Ribbed plates are bridged, which rest on both sides of the gutter opening on the Ablegeschenkeln 18. The ribbed plates stiffen the structure and create an additional shelf. The entire channel 7 is welded together from stainless steel sheets. If it allows or requires the medium located in the channel 7, the channel 7 can also be made

Carbon steel, made of special alloyed steel, made of non-ferrous metal and plastic or of a ceramic material. If necessary, the channel materials are to be coated.

FIG. 6 shows all parameters which are required for the description of the contour 13 of the universally usable channel 7. These are:

L _B : length of the soil;

Lu: length of the lower leg;

Lo: length of the thigh;

Li: length of inner leg;

L _A : length of the filing leg;

α: angle between bottom and lower leg;

ß: angle between lower leg and thigh;

γ: angle between thigh and inner thigh;

d: wall thickness. By varying these nine parameters, the contour 13 of the channel 7 is optimized for different fields of application. Target variables are the Strömungs¬ cross-section, the resistance moments and the length weight. In the optimization α is always to assume an obtuse angle, the sum of the angles α, ß and γ should be at least 270 °.

Preferably, for the lengths of the legs 15, 16 and 17: Li <Lo <Ly. The optional storage leg 18 always runs horizontally.

Optionally, the channel 7 is covered with a cover 19, which prevents leakage of the material located in the channel 7 or an entry of foreign matter. The lid 19 is in a closed position on the storage legs on 18 and sealed against them. The lid 19 can be opened at any time for inspection purposes.

- Claims -

Claims

claims

1. groove, which in a cross-section (Q) describes a contour (13),

a) wherein the contour (13) comprises a first linear section (14) "bottom", and at least one second linear section (15) "lower leg", wherein lower leg (15) and bottom (14) within the channel (7) a include obtuse angles (α),

b) wherein the contour (13) comprises at least a third linear section (16) "thigh", wherein the thigh (16) and lower leg (15) enclose an angle (β) within the channel (7),

c) wherein the contour (13) comprises at least a fourth linear section (17) "inner leg", inner leg (17) and upper leg (16) enclosing an angle (γ) within the channel (7),

d) and wherein the sum (α + ß + γ) of the angle between the bottom (14) and lower leg (15), between lower leg (15) and thigh (16) and between the thigh (16) and inner leg (17) at least 270 ° is.

2. Channel according to claim 1, characterized in that the contour (13) comprises at least a fifth linear portion (18) "storage leg", wherein the storage leg (18) extends horizontally.

3. Channel according to one of claims 1 or 2, characterized in that the angle (ß) between the thigh (16) and lower leg (15) is 90 °.

4. Channel according to one of the preceding claims, characterized in that the angle (γ) between inner legs (17) and

Thigh (16) is 90 °.

5. Channel according to one of the preceding claims, characterized in that the angle (γ) between inner leg (17) and thigh (16) is 70 °.

6. Channel according to one of the preceding claims, characterized in that the angle (α) between the bottom (14) and lower leg (15) is 110 °.

7. Channel according to one of the preceding claims, characterized in that the thigh (16) is shorter than the lower leg! (15).

8. gutter according to claim 7, characterized in that the inner leg (17) is shorter than the thigh (16).

9. Channel according to one of the preceding claims, characterized in that all the legs (15, 16, 17, 18) of the contour (13) are double present.

10. Channel according to claim 9, characterized in that the contour (13) is formed symmetrically.

11. gutter at least according to claim 2 and 9, characterized by at least one ribbed sheet, each of which rests on the end legs on the Ablageschenkeln (18), the channel (7) bridged like a bridge and fixed to the Ablageschenkeln (18).

12. gutter at least according to claim 2 and 9, characterized by at least one cover, by means of which the upwardly open channel (7) is closable, and in a closed position on the Ablage¬ legs (18) rests and is sealed against these.

13. Channel according to one of the preceding claims, characterized in that the channel (7) is bent from a jacket plate (10).

14. Use of a channel (7) according to any one of the preceding claims for collecting and / or conducting flowable materials.

15. Use according to claim 14 in a sampling rack (1) for analysis devices (4).

16. Use according to claim 14 or 15, characterized in that in the channel (7), a drain pipe (9) opens.

17. Use of a channel (7) according to claim 14 in a vibrating motors operated conveyor system.

18. Sampling rack (1) for analysis devices (4), characterized by a channel (7) according to one of claims 1 to 12.

- Summary -