DE102007021790A1 - Closure, to control the flow of loose materials, is a sloping chicane in the valve body with a slide to change the cross section of the outflow channel - Google Patents

Abstract

The closure (1), to block the flow of loose materials (13), has a chicane (9) in the channel (6) through the valve body (2). The chicane narrows the channel in the flow direction (S) to a passage (D) by the movement of a slide (3) in the closing direction (I) with retraction in the opening direction (II) within the chicane. The chicane is pitched at an angle (alpha ) of 30-60[deg] to the flow direction.

Description

The The invention relates to a shut-off device according to the Preamble of claim 1.

From the EP 0 279 569 B1 a shut-off device is known, which comprises a body and a slider, wherein the body has two openings, wherein the openings are connected to each other by a channel and wherein the channel is closed by the slide of the shut-off device. A disadvantage of such a shut-off device is its complex production, which requires cutting open the valve body and to weld a housing. Furthermore, the shut-off device requires a comparatively large installation space.

Of the Invention is based on the object, a shut-off device develop, which is easy and inexpensive to produce is and requires little space.

These The object is based on the features of the preamble of the claim 1 solved by the characterizing features of claim 1. In the subclaims are advantageous and expedient Further developments specified.

The Shut-off device according to the invention comprises a Chicane being the chicane arranged in the channel of the body is, with the chicane the channel in the flow direction narrows to a passage, the passage by moving the slider can be closed in a closed position is, wherein the passage by moving the slider in an open position is releasable, wherein the slider to the flow direction in a slide angle α is between 30 ° and 60 °, the slider is completely in the closed position within the channel, with the slider in the open position completely within the channel and where the slider in the flow direction in the open position by the chicane is covered. By an oblique guidance of the slider and the assignment of a chicane to the slider it is possible to leave the slide in the open position in the channel. This can be a technically complex treatment of the body omitted, which are made to make an opening must, through which the slide from the channel into a slide housing can be pulled. Furthermore, the slider needs itself in the open position no space outside the channel. As a result, the entire shut-off device requires comparatively little space. This makes it possible in particular a variety of shut-off devices close to each other. Core of the invention is thus a shut-off, which consists of a substantially a slide and a chicane existing module having in the flow direction or against the flow direction into the channel of the body of the shut-off device inserted and is fastened there. In gate valves with such Module can, for example, a cylindrical tube as a body be used, with only drilling and / or welding are required to a limited extent. Such a shut-off device can gas-tight with minimal effort without maintenance-intensive seals and / or pressure-resistant and / or impact-resistant and / or heat-resistant or be performed temperature-resistant.

The Invention provides the chicane on an inner wall of the channel to fix. This makes a simple and highly resilient attachment possible so the shut-off also withstand high pressures can hold.

The In particular, the invention provides for the slide in a slide angle of α = 45 ° to the flow direction align. This is in relation to a cross-sectional area the channel reaches a maximum cross-sectional area of the passage.

Farther the invention provides, the body as a cylindrical tube train. Such a body is inexpensive as a standard part with a wide variety of diameters available.

Farther the invention provides the slide in an orthogonal plan view on a directed against the flow direction top form at least in one section as a segment of an ellipse. By such a shape of the slide channels can be sealed in the area of circular wall sections.

According to one Embodiment of the invention is the slide in his Open position in the flow direction behind the chicane arranged. In such an arrangement, the slider is through the Chicane protected and impaired the flowing Medium not.

Farther it is intended to guide the slide at the chicane. This allows additional guide elements or a machining of the inner wall of the channel for the production of Guides are avoided.

A Another embodiment of the invention provides, the To arrange slide in its open position in the chicane. It becomes a negative flow direction after passage Influencing the flowing medium through the slide avoided.

The Invention also provides to guide the slide in the chicane. This makes the guide very easy designed in the form of a bag.

Farther the invention provides, the shut-off device with an actuator to equip, by which the slider is displaceable. hereby a simple operation of the slider is possible. in this connection In particular, it is provided, the actuator outside to arrange the body and the slide of the actuator through to operate an opening in the body. As a result, a simple operation of the slider is possible.

alternative the invention provides, the actuator within of the body. This can weaken of the body avoided by a passage become.

Farther It is intended to use the body in the area of the chicane to provide an inspection opening, which by a Lid is closable. Such access to the Chicane and the slider facilitates maintenance.

The The invention further provides in the flow direction of the Chicane widening the canal to an outlet in front. hereby becomes the flow behavior of the flowing medium improved.

According to the invention the chicane is formed by a baffle plate. Such a chicane can be produced inexpensively.

Farther it is provided, the baffle plate to the flow direction in a baffle angle β between 30 ° and 60 ° to order. As a result, in the flow direction, a gentle rejuvenation reaches the passage through which the flowing Medium is little burdened.

Especially the invention provides, the baffle to the flow direction to arrange in a baffle angle β of 45 °. With such an inclined baffle can be realize the largest possible passage.

Farther the invention provides a widening of the channel in the flow direction between an inlet and the chicane. This will be the Improved flow behavior of the flowing medium.

After all the invention provides, the slide in the closed position and / or the open position by at least one guide support. This allows the slider at comparatively easier to withstand large forces. In particular, it is provided, the guide on the inner wall to fix the body by a welded joint and train as a rib. Such ribs can be inexpensively produce and assemble quickly.

Further Details of the invention are described in the drawing with reference to FIG described embodiments described.

in this connection shows:

1a . 1b a sectional side view of a first and second embodiment of a shut-off device according to the invention;

2a FIG. 2: a sectional side view of a shut-off device according to the invention according to FIG 1a in a simplified representation;

2 B . 2c : a top view on the 2a from an arrow direction IIb and a plan view of the 2a from an arrow direction IIc;

2d : a special view of the slider;

3 : a mixing device with three shut-off devices according to the invention;

4a a bottom view of a third embodiment of a shut-off device according to the invention with a closed passage;

4b : another bottom view on the in the 4a shown third embodiment with open passage;

5a a side view of a fourth embodiment of a shut-off device according to the invention with closed passage and

5b : another side view of the in the 4a shown fourth embodiment with open passage.

In 1a is a first embodiment of a shut-off device according to the invention 1 shown in a sectional side view. The shut-off device 1 essentially comprises a body 2 and a slider 3 , The body 2 is as a valve body 2 executed and has two openings 4 . 5 on, which through a channel 6 connected to each other. When viewed in a flow direction S, the first opening forms 4 an inlet 7 and the second opening 5 an outlet 8th , Furthermore, the shut-off device comprises 1 a chicane 9 passing through a baffle plate 10 is formed. The chicane 9 or the baffle plate 10 is under a bang Sheet angle β of β = 45 ° to the flow direction S and to a longitudinal axis L of the channel 6 aligned and on the body 2 the shut-off device 1 welded with a weld SN1. Through the chicane 10 becomes the channel 6 in the flow direction S to a passage D tapers. On an inner wall 11 of the body 2 is in the channel 6 continue a tour 12 for the slider 3 welded with a weld SN2. The slider 3 is in the representation of 1a in an open position II, so can bulk 13 in the flow direction S from the inlet 7 through the passage D to the outlet 8th of the canal 6 stream. The body 2 the shut-off device 1 is essentially a cylindrical tube 14 formed, on which a flange 15 is welded on. The slider 3 is by an actuator 16 in directions of arrows x and x- movable. The actuator 16 includes a pole 17 executed, which through a passage 18 the body is guided, and is screwed into a support plate T, wherein the support plate T with the slider 3 is firmly connected. Outside the canal 6 is the rod 17 in a neck 19 guided, which to the cylindrical tube 14 is welded. With dashed lines, a closed position I is shown, in which the slider 3 stands, if this from the in the 1a shown position in the direction of arrow x by the actuator 16 is moved. In the closed position I is then the channel 6 closed the shut-off device at its passage D, wherein the bulk material 13 the way in the direction of flow S through the chicane 9 and the slide acting together with this 3 is closed. The slider 3 is protected by the baffle plate 10 guided and is in a slide angle of α = 45 ° to the flow direction S and to the longitudinal axis L of the channel 6 , Thus, the baffle plate 10 and the slider 3 aligned parallel to each other. In the body 2 is in the flow direction S behind the chicane 9 and above a Schüttkegels SK an inspection opening 20 with a lid 20a arranged, which can be opened from the outside, for example, control and / or maintenance of the slider 3 perform. The baffle plate 10 forms a kind of shield 21 through which the slider 3 in the open position II before an immediate load through the bulk material 13 is protected. Through the inspection opening 20 can also replace the slider 3 respectively. This is the rod 17 unscrewed from the support plate T and the slide 3 can along with its support plate T through the inspection opening 20 be removed.

In the 1b is a second embodiment of a shut-off device according to the invention 1 shown in a sectional side view. This variant is largely comparable to that in the 1a executed shown first embodiment. In contrast to the first embodiment, the second embodiment has a different flange 15 on. Furthermore, in the 1b a neck 19 fully illustrated, in which an actuator 16 is guided. The stub 19 has a flange plate 22 on, to which one to the actuator 16 belonging drive 23 is flanged. The drive 23 is designed for example as an electric motor drive and / or hydraulic drive and / or pneumatic drive.

In the 2a is the one in the 1a Shut-off device shown 1 again shown in simplified and schematic representation, with one out of the chicane 9 the slider 3 and two guides 12 formed installation arrangement 35 to illustrate the closed position I and the open position II are shown in duplicate. In the upper installation arrangement 35a is the slider 3 in the open position II and in the lower mounting arrangement is the slide 3 in the closed position. In the open position II and in the closed position I is the slide 3 on the laterally arranged guides 12 on, in the representation of the 2a in every installation arrangement 35 only one guide 12 is visible. The guides 12 are formed as bent ribs R, which on the inner wall 11 preferably welded. Incidentally, the description of the 1a referenced, which for the 2a applies accordingly.

In the 2 B is a view on a top 39 of the slide in the closed position I 3 from one in the 2a shown arrow direction IIb shown. For orientation, with a thin line is a leading edge V9 of the chicane 9 (please refer 2a ), which is not actually visible in this view. On the inner wall 11 of the body 2 are on opposite sides the two guides 12 recognizable. These support the slider 3 against a bulk material, not shown here, from above onto the slide 3 acting pressure. Furthermore, the slider 3 stabilized over its support plate T, which extends over the rod 17 on the body 2 and in the 2a to 2d not shown neck 19 (please refer 1a ) is supported. The slider 3 is composed of two sections A1 and A2, wherein the section A1 is formed as a segment E1 of an ellipse. The slider 3 closes the passage D (see 2a respectively. 2c ) Completely.

By retracting the rod 17 in the direction of the arrow x 'is the slider 3 from his in the 2 B shown closed position I in the in the 2c shown open position II moves. In the open position II gives the slider 3 the passage D completely free and supports laterally again on the trained as ribs R guides 12 from. According to an embodiment not shown the ribs R are made so wide that the slider 3 is supported in all intermediate positions, not shown, between the closed position I and the open position II. The in the 2a to 2c illustrated embodiment of the ribs R facilitates disassembly or assembly of the slider 3 since this after unscrewing the rod 17 in a middle intermediate position between the ribs in the flow direction S and counter to the flow direction S (see 2a ) can be passed.

In the 2d is finally the slide separated from the rod 3 shown, with the slider 3 at a slide angle α = 90 ° in the cylindrical tube 14 which is essentially the body 2 forms. In this illustration, it can be seen that the slider 3 in the pipe 14 about the longitudinal axis L in arrow directions w, w 'is rotatable and thus in the pipe 14 is comparatively easy to handle. This facilitates the above-mentioned exchange by only in the 1a and not in the 2a to 2d illustrated inspection opening 20 , In the 2d is the cylindrical tube 14 just like in the 2a to 2c shown in simplified form.

In the 3 is a schematic view of a mixing device 24 shown which three shut-off devices 1 having. The shut-off devices 1 are between an upper silo 25 and a mixing nozzle 26 arranged. About pipelines 27 . 28 and 29 can the upper silo 25 be taken at various points not shown bulk material. Through the pipes 27 . 28 and 29 arranged shut-off devices 1 can the in the three pipes 27 . 28 and 29 flowing material streams can be adjusted according to a desired mixture. It is possible, the individual shut-off devices 1 completely open, completely close or keep their slides, not shown, in any intermediate positions. Furthermore, there are closable openings 20 also admixture of additives and / or sampling possible.

In the 4a is a bottom view of a third embodiment of a shut-off device according to the invention 1 shown, with a slider 3 in a closed position I stands. A flow direction S of a bulk material 13 (please refer 4b ) points out of the drawing plane. For explanation, the direction in which the bottom view is made in the 1a represented by an arrow IV. The in the 1a and 2a to 2d illustrated first embodiment and in the 4a and 4b illustrated third embodiment are comparable to the basic structure. In viewing direction is behind the slider 3 one as baffle 10 executed chicane 9 arranged, which one in a body 2 the shut-off device 1 trained channel 6 blocked to about two-thirds and narrowed to a passage D (see also 4b ). In the closed position I closes the slide 3 the passage D. The slide 3 and the baffle 10 are arranged to the flow direction in a slide angle or a baffle plate angle of 45 °, these angles in the representations of 4a and 4b can not be displayed. In principle, the orientation of the slider 3 and the baffle 10 chosen similar to the variants shown in the preceding figures. The flat trained slide 3 includes a first section A1 and a second section A2. The first section A1 is executed as a segment E1 of an ellipse and appears only in the for the 4a and 4b selected orthogonal pointing in the direction of a longitudinal axis bottom view as a circle segment. By the execution of the first section A1 of the slider 3 as segment E1 of an ellipse, the passage D can pass through the slide 3 be completely closed and gap-free, as the slide 3 with a side edge 30 to an inner wall 11 of the body 2 created in the closed position I. By means of an actuator 16 is the slider 3 from the in the 4a illustrated closed position I in a in the 4b shown open position II retractable. In the open position II gives the slider 3 the passage D completely for the bulk material 13 free. In the closed position II is the slide 3 then with a second section of its side edge 30 full surface on the inner wall 11 of the body 2 at.

In the 5a is a fourth embodiment of a shut-off device according to the invention 1 shown in a schematic side view. On the hatching cut surfaces was omitted to maintain the clarity of the presentation. The shut-off device 1 includes a body 2 , which as a cylindrical tube 14 is executed in the area of an inlet 7 is rejuvenated. From the inlet 7 leads a channel 6 to an outlet 8th , In a flow direction S, the channel 6 through a chicane 9 temporarily narrows and widens to the outlet 8th on. The chicane 9 narrows the channel 6 to a passage D. The passage D is through a slide 3 closable. In the presentation of the 5a is the slider 3 in a closed position I and completely blocks the passage D. The chicane 9 is in contrast to the previous embodiments as a component 31 or body 31 executed. To open the passage D, the slider is 3 into the component 31 in an arrow direction x 'in one in the 5b shown open position II retractable. A method of the slider 3 in an arrow direction x and in the direction of the arrow x 'by means of an actuator 16 which is in the component 31 is arranged. The actuator gan 16 essentially comprises an electric motor 32 and a spindle driven by it 33 , The spindle 33 engages in a threaded hole 34 one, which in the slider 3 is executed. Dependent on one direction of rotation of the spindle 33 around a rotation axis d moves the slider 3 in the x-direction or in the x'-direction. One out of the chicane 9 the slider 3 and the actuator 16 existing installation arrangement 35 takes place through the outlet 8th against the flow direction S. After insertion of the installation arrangement 35 in the body 2 the shut-off device 1 this will be with fasteners 36 with the body 2 screwed. About a hole 37 in the body 2 becomes a cable 38 to the electric motor 32 the led. In such a shut-off device 1 can be completely dispensed with welding. To seal the passage D, the slide sets 3 with a side edge 30 to an inner wall 11 of the body 2 ,

The The invention is not limited to illustrated or described embodiments limited. It rather includes developments of the invention within the scope of the protective rights claims. In particular, looks the invention a use of aeration devices before, through which the shut-off device for powdered Products is usable.

1

Shut-off

2

Body, valve body

3

pusher

4

First opening

5

Second opening

6

channel

7

inlet

8th

outlet

9

chicane

10

baffle

11

Inside wall of 2

12

Leadership for 3

13

bulk

14

cylindrical pipe

15

Flange of 2

16

actuator

17

pole

18

Opening or passage in 2 For 17

19

Support

20

inspection opening

21

sign

22

Flange plate of 19

23

drive

24

mixing device

25

Oberer silo

26

mixing nozzle

27

pipeline

28

pipeline

29

pipeline

30

Side edge of 3

31

component corpus

32

electric motor

33

spindle

34

threaded hole

35

A mounting structure

35a, 35b

upper or Lower mounting arrangement

36

fastener

37

Bore for 38

38

Cable for 32

39

Top of 3

A1

First section of 3

A2

Second section of 3

D

passage

D20

Lid of 20

d

Rotation axis of 33

E1

first Segment of an ellipse

L

Longitudinal axis of 6

R

rib

S

flow direction I

SN1, SN2

Weld

SK

angle of repose

T

Support plate of 3

V9

Leading edge of 9

I

Closed position of 3

II

Open position of 3

α

Vane angle

β

Baffle angle

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• EP 0279569 B1 [0002]

Claims (21)

Shut-off device ( 1 ) comprising a body ( 2 ) and a slider ( 3 ), whereby the body ( 2 ) two openings ( 4 . 5 ), wherein the openings ( 4 . 5 ) through a channel ( 6 ) and the channel ( 6 ) through the slider ( 3 ) of the shut-off device ( 1 ) is closable, characterized in that the shut-off device ( 1 ) a chicane ( 9 ), the chicane ( 9 ) in the channel ( 6 ) of the body ( 2 ), the chicane ( 9 ) the channel ( 6 ) narrows in the flow direction (S) to a passage (D), wherein the passage (D) by a displacement of the slide ( 3 ) is closed in a closed position (I), wherein the passage (D) by moving the slider ( 3 ) in an open position (II) is releasable, wherein the slide ( 3 ) to the flow direction (S) in a slide angle (α) between 30 ° and 60 °, wherein the slide ( 3 ) in the closed position (I) completely within the channel ( 6 ), wherein the slider ( 3 ) in the open position (II) completely within the channel ( 6 ) and wherein the slider ( 3 ) in the flow direction (S) in the open position (II) by the chicane ( 9 ) is covered. Shut-off device according to claim 1, characterized in that the chicane ( 9 ) on an inner wall ( 11 ) of the channel ( 6 ) is attached. Shut-off device according to claim 1, characterized the slide angle (α) is 45 °. Shut-off device according to claim 1, characterized in that the body ( 2 ) as a cylindrical tube ( 14 ) is trained. Shut-off device according to claim 1, characterized in that the slide ( 3 ) in an orthogonal plan view of a directed against the flow direction (S) top ( 39 ) is formed at least in a section (A1, A2) as a segment (E1) of an ellipse. Shut-off device according to claim 1, characterized in that the slide ( 3 ) in its open position (II) in the flow direction (S) behind the chicane ( 9 ) is arranged. Shut-off device according to claim 6, characterized in that the slide ( 3 ) at the chicane ( 9 ) is guided. Shut-off device according to claim 1, characterized in that the slide ( 3 ) in its open position (II) in the chicane ( 9 ) is arranged. Shut-off device according to claim 8, characterized in that the slide ( 3 ) in the chicane ( 9 ) is guided. Shut-off device according to claim 1, characterized in that the shut-off device ( 1 ) an actuator ( 16 ), through which the slide ( 3 ) is displaceable. Shut-off device according to claim 10, characterized in that a drive ( 23 ) for the actuator ( 16 . 17 ) outside the body ( 2 ) is arranged and the slide ( 3 ) of the actuator ( 16 ) through an opening ( 18 ) in the body ( 2 ) is operable. Shut-off device according to claim 10, characterized in that a drive ( 32 ) the actuator ( 16 . 33 ) within the body ( 2 ) is arranged. Shut-off device according to claim 1, characterized in that the body ( 2 ) in the area of the chicane ( 9 ) a through a lid (D20) closable inspection opening ( 20 ) having. Shut-off device according to claim 1, characterized in that the channel ( 6 ) in the flow direction (S) after the chicane ( 9 ) to an outlet ( 8th ) expands. Shut-off device according to claim 1, characterized in that the chicane ( 9 ) by a baffle plate ( 10 ) is formed. Shut-off device according to claim 15, characterized in that the baffle plate ( 10 ) to the flow direction (S) in a baffle angle (β) between 30 ° and 60 °. Shut-off device according to claim 16, characterized in that the baffle plate ( 10 ) to the flow direction (S) in a baffle angle (β) of 45 °. Shut-off device according to claim 1, characterized in that the channel ( 6 ) in the flow direction (S) between an inlet ( 7 ) and the chicane ( 9 ) expands. Shut-off device according to claim 1, characterized in that the slide ( 3 ) in the closed position (I) and / or the open position (II) by at least one guide ( 12 ) is supported. Shut-off device according to claim 19, characterized in that the guide ( 12 ) on the inner wall ( 11 ) of the body ( 2 ) is attached. Shut-off device according to claim 19, characterized in that the guide ( 12 ) when Ridge (R) is formed, on which the slider ( 3 ) rests.