DE102021113986A1 - protective device - Google Patents

Abstract

Protective device with two pipe sections (2, 3) which have pipe section ends (4,5) facing one another and arranged at a distance from one another, so that between them there is an intermediate space (6) into which a first pipe section (7) is inserted, and a detachable fixing device (8), by means of which the first piece of pipe (7) is fixed between the pipe section ends (4, 5), a second piece of pipe (19) being firmly connected to the first piece of pipe (7) by a connecting piece (18), which on the fixing device (8) or on at least one of the pipeline sections (2, 3) so that it can rotate about a rotation axis (22), so that the first pipe section (7) can be removed from the intermediate space by rotating the connecting piece (18) about the rotation axis (22). (6) can be disengaged and the second piece of pipe (19) can be engaged in the intermediate space (6).

Description

The invention relates to a protective device with two pipe sections, which have pipe section ends that face one another and are arranged at a distance from one another, so that an intermediate space is provided between them, into which a first pipe section is inserted, and a releasable fixing device, by means of which the first pipe section is fixed between the pipe section ends is.

If, for example, an insert in the form of a sieve is provided in the first piece of pipe, foreign bodies provided in the pipeline can thus be screened out, for example in order to prevent damage to a machine connected to the pipeline by the foreign bodies. Such foreign bodies (such as chips, solids, etc.) often get into the pipeline during service or conversion work and cannot always be removed from the pipeline afterwards, so that they pose a risk to the machine. For example, the machine is a pump, blower, etc. With time, the strainer becomes dirty, requiring cleaning to prevent deterioration or clogging of the piping. However, removing and/or changing the screen is expensive.

Proceeding from this, the invention is based in particular on the object of creating a protective device with which the aforementioned effort can be reduced and/or changing the pipe section can be simplified.

According to the invention, this object is achieved by a protective device according to claim 1 . Preferred developments of the invention are given in the dependent claims and in the following description.

A protection device with two pipe sections, which have mutually facing, spaced pipe section ends, so that there is an intermediate space between them, in which a first pipe section is engaged, and a releasable fixing device, by means of which the first pipe section between the pipe section ends, preferably tight, is fixed and/or can be fixed is further developed according to the invention in particular in that a second piece of pipe is firmly connected to the first piece of pipe by a connecting piece, which is mounted on the fixing device and/or on at least one of the pipe sections so that it can rotate about an axis of rotation, so that, in particular when the fixing device is released or loosened, the first piece of pipe can be disengaged from the intermediate space and the second piece of pipe can be engaged into the intermediate space by rotating the connecting piece about the axis of rotation.

The protective device according to the invention enables the pipe sections to be changed more quickly. In particular, the protective device can be retrofitted to existing systems. The protective device should preferably be offered for different pressure levels and/or for different nominal widths, for example in sizes from DN15 to DN2000.

The expression "at least one" includes in particular the meaning of "one" or "exactly one". Each pipe section can also be referred to as a pipe section, for example. For example, each pipe section forms a piece of pipe. The protective device is intended in particular for a pipeline. For example, the protective device can also be referred to as a pipeline protection device or as a changing device or as a piece of pipe changing device.

The pipeline sections are preferably arranged one behind the other in an axial direction and/or at a distance from one another. The pipeline section ends are arranged at a distance from one another, in particular in the or an axial direction. The pipe sections preferably extend in the or an axial direction. The axis of rotation advantageously runs in the or an axial direction. For example, the axis of rotation can also be referred to as an axial axis of rotation. A longitudinal central axis extending in the or an axial direction is preferably assigned to the intermediate space. Preferably the gap is an axial gap. A pipeline encompassing the pipeline sections is advantageously provided. The pipeline preferably also includes one of the pipe sections, preferably the first pipe section. In particular, the pipeline runs at least in regions in the or an axial direction. Any direction running transversely to the axial direction and/or transversely to the axis of rotation and/or transversely to the longitudinal central axis is referred to in particular as a radial direction.

The second piece of pipe is preferably arranged at a distance from the first piece of pipe. In particular, the second piece of pipe is offset relative to the first piece of pipe transversely to the axial direction. The second piece of pipe is preferably arranged outside of the intermediate space.

According to a first variant, for example, two or exactly two pieces of pipe are provided, which include in particular the first piece of pipe and the second piece of pipe. According to a second variant, for example, there are at least two or more than two pieces of pipe provided, which in particular comprise the first piece of pipe and the second piece of pipe, wherein the pieces of pipe are preferably firmly connected to one another by the connecting piece.

The tubing and connector preferably form a tubing assembly. The pipe section arrangement is preferably mounted rotatably about the axis of rotation, in particular through or via the connecting piece, on the fixing device and/or on at least one of the pipe sections or on the at least one pipe section.

According to a further development, the fixing device is a clamping device, by means of which the pipe section ends are and/or can be pressed against or towards one another and/or against the first pipe section and/or against the front ends of the first pipe section, in particular in the axial direction.

According to one embodiment, the pipe section ends and/or the pipe sections in the area of the pipe section ends, preferably on their outer circumference, are each provided with a flange, in particular a radial or radially protruding flange, which is in particular an annular flange. Each flange preferably protrudes radially from the respective pipeline section. The fixing device preferably has the flanges. The fixing device advantageously has, in particular additionally, preferably several, in particular detachable, fastening means by means of which the flanges and/or the pipe section ends are and/or can be firmly connected to one another, in particular in the axial direction. The flanges and/or the pipe section ends are preferably pressed and/or can be pressed and/or pressed and/or can be pressed against the front ends of the first pipe section and/or pressed against one another or toward one another, in particular in the axial direction, by means of the fastening means / or pressable and / or firmly connected and / or connectable. Preferably, the fastening means are or form, in particular thus, fastening and clamping means. The fasteners each form a screw connection, for example. The fastening means preferably comprise or form bolts, which are also referred to as fastening bolts, for example. The bolts can, for example, be or form screws, for example in the form of screw bolts. The fastening means preferably comprise, in particular additionally, nuts, which are preferably screwed onto the bolts. However, it is also possible for the fastening means, in particular additionally, to include securing rings which are preferably placed on the bolts. The fastening means or the bolts are advantageously passed through at least one of the flanges. According to a first alternative, the fastening means or the bolts are, for example, passed through a first of the flanges and screwed into a second of the flanges. According to a second alternative, the fastening means or the bolts are passed through both flanges, for example, with one of the nuts preferably being screwed onto each bolt or one of the securing rings being placed on. In particular, each bolt has a head which is axially supported on a first of the flanges or on the first flange, preferably on a side of the first flange which faces away from a second of the flanges. The nuts or locking rings are advantageously supported axially on a second of the flanges or on the second flange, preferably on a side of the second flange facing away from the first flange. The fastening means or the bolts preferably extend in the axial direction. The fastening means or the bolts are preferably arranged around the first piece of pipe and/or the ends of the pipe section, in particular distributed evenly.

According to a development, the connecting piece is rotatably mounted on at least one of the flanges and/or on or by means of or around one of the fastening means and/or on or by means of or around one of the bolts, in particular around the axis of rotation. For example, the connecting piece sits on one fastening means or one bolt or on one of the fastening means or on one of the bolts and is in particular thus rotatably mounted, preferably around the axis of rotation. A through hole, in particular an axial through hole, is advantageously provided in the connecting piece, through which the one fastening means or one bolt or one of the fastening means or one of the bolts preferably extends.

Before the first pipe section is removed and/or before the pipe sections are changed and/or before the connecting piece or the pipe section arrangement is rotated about the axis of rotation, the fixing device in particular must be released or loosened. Before removing the first pipe section and/or before changing the pipe sections and/or before rotating the connecting piece or the pipe section arrangement about the axis of rotation, at least one or more of the fastening means is or should be loosened or loosened. The fixing device is preferably to be dismantled, in particular at least partially, before the first pipe section is removed and/or before the pipe sections are changed and/or before the connecting piece or the pipe section arrangement is rotated about the axis of rotation. Is or are advantageous before removing the first piece of pipe and / or before changing the pipe sections and / o to dismantle at least one of the or more of the fastening means before rotating the connector or the pipe section arrangement about the axis of rotation.

The first piece of pipe preferably extends in the direction of a first pipe axis. The first tube axis preferably extends in the axial direction. The first piece of pipe is advantageously rotationally symmetrical with respect to the first pipe axis. The first piece of pipe is preferably cylindrical, in particular circular-cylindrical. Preferably, the first tube axis coincides with the longitudinal central axis. The second piece of pipe preferably extends in the direction of a second pipe axis. The second tube axis preferably extends in the axial direction. The second piece of pipe is advantageously rotationally symmetrical with respect to the second pipe axis. The second piece of pipe is preferably cylindrical, in particular circular-cylindrical. Preferably, the first and second tube axes are parallel to each other. The pipe sections are in particular of the same or similar design.

Each piece of pipe preferably forms a dimensionally stable body. For example, each piece of pipe is made of plastic or metal. Each pipeline section preferably forms a dimensionally stable body. For example, each pipeline section consists of plastic or metal. Each flange preferably forms a dimensionally stable body. For example, each flange is made of plastic or metal. In particular, each flange is rigidly connected to the respective pipeline section. The connecting piece preferably forms a dimensionally stable body. For example, the connector is made of plastic or metal. The pipe sections are advantageously rigidly connected to one another by the connecting piece.

Preferably, an insert is and/or can be inserted into the first pipe section or into each pipe section. Preferably the insert of the or each length of tubing is or comprises a screen or a valve such as a check valve. For example, the screen of the first pipe section or of each pipe section is disc-shaped. A disc-shaped design of the screen makes it easier to clean the screen, for example. In particular, the insert of the first or each pipe section is, preferably detachably, attached and/or attachable to or in the first or the respective pipe section, for example screwed and/or screwable to it. The use of the first or each pipe section preferably extends, in particular transversely to the axial direction, over the entire pipe interior of the first or of the respective pipe section. Due to the detachable attachment of the insert, it is possible to replace it with another insert. If the insert is a sieve, this can be replaced by a sieve with a different hole size, for example. Furthermore, it is possible to leave the tube interior of the first or each tube section free, so that it forms a free space or free passage, for example.

An insert is preferably introduced and/or can be introduced into the second piece of pipe. Preferably the insert of the second length of tubing is or comprises a screen or a valve such as a check valve. For example, the screen of the second piece of pipe is disk-shaped. In particular, the insert of the second pipe piece is and/or can be fastened, preferably detachably, to or in the second pipe piece, for example screwed and/or screwed to it. The insert of the second pipe section preferably extends, in particular transversely to the axial direction, over the entire pipe interior of the second pipe section. Due to the detachable attachment of the insert, it is possible to replace it with another insert. If the insert is a sieve, this can be replaced by a sieve with a different hole size, for example. Furthermore, it is possible to leave the inner space of the second pipe section free, so that it forms a free space or free passage, for example.

In particular, a medium, for example a liquid or gaseous medium, flows in the pipeline and/or in the pipeline sections and/or in the first piece of pipe. The medium is preferably a fluid. In particular, foreign bodies are carried along by the medium. Advantageously, the foreign bodies or several of the foreign bodies can be sieved out and/or retained by means of the sieve or sieves, in particular the first pipe section and/or the second pipe section.

According to one embodiment, the first piece of pipe and/or the second piece of pipe or each piece of pipe is or are provided with at least one magnet, which is preferably a permanent magnet. It is thus possible, in particular, to hold magnetic foreign bodies or magnetic foreign bodies that are provided, for example, in the pipeline and/or in the pipeline sections and/or are carried along by the medium, preferably magnetically. The or each at least one magnet is preferably provided on or in the wall of the first or the second or the respective pipe section.

According to a development, the connecting piece is straight or essentially straight, in particular in the radial direction and/or transversely to the axis of rotation. The axis of rotation preferably runs centrally through the connecting piece, in particular with regard to the pipe sections. The first pipe section is preferably disconnected by rotating the connecting piece by 180° about the axis of rotation disengageable from the space and engaging the second piece of pipe into the space.

According to one embodiment, one of the pipeline sections is provided and/or connected to a machine. For example, this pipe section forms a connection piece or a connecting piece of the machine. The machine is, for example, a pump, a blower, a ventilator or a motor. For example, the medium can be fed to the machine through the pipeline and/or the medium can be fed to the pipeline through the machine.

According to a further development, one of the pipeline sections is provided and/or connected to a container. For example, this pipe section forms an inlet or an outlet of the container. For example, the medium can be supplied to the container through the pipeline and/or the medium can be supplied to the pipeline through the container.

According to one possible embodiment, the pipe section arrangement is clamped between the pipe sections by means of the fixing or clamping device. Two screens are preferably provided or the second piece of pipe comprises a check valve instead of a screen or forms a free flow pipe. In particular, however, only one of the two pieces of pipe is pivoted into the pipeline and/or indented into the intermediate space. To rotate the connecting piece about the axis of rotation, the screws or bolts of the fixing or clamping device (in particular except for one screw or bolt) are loosened and/or loosened. After this loosening and/or loosening, the first piece of pipe, e.g. soiled, can be swung out, in particular together with foreign bodies deposited on it, without further measures having to be taken on the machine, for example. Furthermore, the second piece of pipe, which is in particular clean or cleaned, can be pivoted into the pipe and/or pushed into the intermediate space. Then, for example, the screws or bolts can be tightened again and operation can be resumed. Now the first piece of pipe that was swung out or disengaged can be cleaned. After cleaning, the first piece of pipe is ready for another change. Depending on the application, different sieve sizes can be provided. Each screen is preferably screwed to the respective piece of pipe and can therefore be exchanged.

• 1 eine Seitenansicht einer an eine Maschine angeschlossenen Schutzvorrichtung gemäß einer Ausführungsform,
• 2 einen Längsschnitt der Schutzvorrichtung ohne Maschine,
• 3 einen Schnitt der Schutzvorrichtung entlang der aus 2 ersichtlichen Schnittlinie A-A und
• 4 eine Ansicht einer aus 3 ersichtlichen Rohrstückanordnung.

The invention is described below using a preferred embodiment with reference to the drawing. Show in the drawing:

• 1 a side view of a protection device connected to a machine according to an embodiment,
• 2 a longitudinal section of the protection structure without machinery,
• 3 cut the guard along the out 2 apparent section line AA and
• 4 a view one out 3 visible pipe section arrangement.

Out of 1 1 shows a side view of a protective device 1 according to an embodiment, wherein two pipe sections 2 and 3 have pipe section ends 4 and 5 which are arranged facing one another and are spaced apart from one another in an axial direction x (see FIG 2 ) have between which an axial space 6 is provided, in which a first piece of pipe 7 is engaged. Furthermore, a detachable fixing device 8 in the form of a clamping device is provided, by means of which the first piece of pipe 7 is fixed between the ends 2 and 3 of the pipe section. As in 1 As shown, the pipe section 3 is connected to a machine 9, such as a pump or fan. A longitudinal central axis 10 extending in the axial direction x is assigned to the intermediate space 6 .

Out of 2 a longitudinal section of the protective device 1 without the machine can be seen. In the area of the pipe section ends 4 and 5, the pipe sections 2 and 3 are each provided with a radially projecting flange 11 or 12 on their outer circumference, with the fixing device 8 having both the flanges 11 and 12 and a plurality of fastening means 13, by means of which the flanges 11 and 12 are firmly connected to one another and pressed towards one another in the axial direction x. Thus, the pipeline sections 2 and 3 are also pressed against the first piece of pipe 7 . The fastening means 13 each comprise, for example, a bolt 14 in the form of a screw and a nut 15 screwed onto it.

The first pipe section 7 is provided with an insert 16 in the form of a sieve, which is arranged in the pipe interior of the first pipe section 7 and extends transversely to the axial direction x over the entire pipe interior of the first pipe section 7 . The first piece of pipe 7 is preferably provided with magnets 17 which are provided in particular in or on the wall of the first piece of pipe 7 and are preferably designed as permanent magnets. For example, the magnets 16 are magnetized in the axial direction, which is indicated by the reference numbers N for north pole and S for south pole (however, the poles can also be reversed or arranged in some other way).

3 shows a section of the protective device 1 along FIG 2 apparent cutting line AA. The first piece of pipe 7 is connected by a connecting piece 18 to a second piece of pipe 19, which is designed similarly to the first piece of pipe 7 and is also provided with an insert 20 in the form of a sieve, which is arranged in the pipe interior of the second piece of pipe 19 and is transverse extends to the axial direction x over the entire tube interior of the second tube section 19. The second piece of pipe 19 is preferably also provided with magnets. The two pipe sections 7 and 19 and the connecting piece 18 together form a pipe section arrangement 21, which is shown in detail 4 is evident.

The connecting piece 18 sits on one of the fastening means 13, in particular on one of the bolts 14, and is thus mounted so that it can rotate about an axis of rotation 22 running in the axial direction x, so that by rotating the connecting piece 18 about the axis of rotation 22, for example in the direction of the arrow 23, the first piece of pipe 7 can be disengaged from the intermediate space 6 and the second piece of pipe 19 can be engaged in the intermediate space 6 . Before doing so, however, one or more of the fastening means 13 must be loosened or loosened. Furthermore, in particular those fastening means 13 which stand in the way of pivoting the pipe section arrangement 21 must be dismantled in advance. How out 4 As can be seen, an axial through hole 24 is provided in the connecting piece 18, through which the one fastening means 13, in particular the one bolt 14, extends in the assembled state of the pipe piece arrangement 21.

Reference List

1

protective device

2

pipeline section

3

pipeline section

4

pipe section end

5

pipe section end

6

space

7

first piece of pipe

8th

Fixing device / clamping device

9

machine

10

longitudinal central axis

11

flange

12

flange

13

fasteners

14

bolt

15

mother

16

mission

17

magnet

18

connector

19

second piece of pipe

20

mission

21

pipe section arrangement

22

axis of rotation

23

Arrow

24

through hole

Claims (10)

Protective device with two pipe sections (2, 3) which have pipe section ends (4, 5) facing one another and arranged at a distance from one another, so that between them there is an intermediate space (6) into which a first pipe section (7) is engaged, and a detachable fixing device (8), by means of which the first piece of pipe (7) is fixed between the pipe section ends (4, 5), characterized in that a second piece of pipe (19) is firmly connected to the first piece of pipe (7) by a connecting piece (18). which is mounted on the fixing device (8) or on at least one of the pipe sections (2, 3) so that it can rotate about an axis of rotation (22), so that by rotating the connecting piece (18) about the axis of rotation (22), the first piece of pipe (7) can be disengaged from the intermediate space (6) and the second piece of pipe (19) can be engaged in the intermediate space (6). protective device claim 1 , characterized in that the fixing device (8) is a clamping device, by means of which the pipe section ends (4, 5) are pressed against the front ends of the first piece of pipe. protective device claim 1 or 2 , characterized in that the pipeline sections (2, 3) in the region of the pipeline section ends (4, 5) are each provided with a radially projecting flange (11, 12) on their outer circumference, the fixing device (8) having both the flanges (11, 12) as well as several fastening means (13), by means of which the flanges (11, 12) are firmly connected to one another. protective device claim 3 , characterized in that the fastening means (13) comprise bolts (14) passed through at least one of the flanges (11, 12) and the connecting piece (18) is rotatably mounted on one or by means of one of the bolts (14) about the axis of rotation (22). is. Protective device according to one of the preceding claims, characterized in that the pipe sections (7, 19) are of the same or similar design. Protective device according to one of the preceding claims, characterized in that an insert (16, 20) is introduced into the first or each tube section (19) and is detachably fastened to the first or the respective tube section (19). protective device claim 6 characterized in that the or each insert (20) is a screen or a valve. Protection device according to one of the preceding claims, characterized in that the first or each tube section (7, 19) is provided with at least one magnet (17). Protective device according to one of the preceding claims, characterized in that the connecting piece (18) is straight and the axis of rotation (22) runs centrally through the connecting piece (18). Protective device according to one of the preceding claims, characterized in that one of the pipe sections (2, 3) is provided or connected to a machine (9) or to a container.

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