SIGHT GLASS COVER WITH INTEGRATED CLEANING DEVICE

Abstract

The invention relates to a sight glass cover (10) with an integrated cleaning device, for closing an opening (14), comprising a sight glass (18), which has a glass edge (57) and a glass inner side (20), wherein the glass inner side (20) is facing the opening (14) when a sight glass cover (10) is placed on the opening (14), and a frame device (16), which encloses the sight glass (18) at least in the region of the glass edge (57), wherein the frame device (16) has a frame inner side (32), which is facing away from the glass inner side (20) and lies against a wall region 34 surrounding the opening (14) when a sight glass cover (10) is placed on the opening (14), a cleaning device (22), which is formed in the frame device (16) and has at least one channel (24) with an inlet opening (26) and an outlet opening (28) at a distance from the inlet opening (26), wherein the outlet opening (28) of the channel (24) is formed between the glass inner side (20) and the frame inner side (32), and the channel (24) is designed and formed in such a way that the glass inner side (20) of the sight glass (18) can be at least partially wetted with a medium (30) fed into the channel (24) by way of the inlet opening (26) and leaving by way of the outlet opening (28). This is a way of providing a cover with a sight glass in the case of which the sight glass can be cleaned in a closed state of the cover with little effort.

Claims

1. A sight glass cover with an integrated cleaning device, for closing an opening, comprising a sight glass, which has a glass edge and a glass inner side, wherein the glass inner side is facing the opening when a sight glass cover is placed on the opening, and a frame device, which encloses the sight glass at least in the region of the glass edge, wherein the frame device has a frame inner side, which is facing away from the glass inner side and lies against a wall region surrounding the opening when a sight glass cover is placed on the opening, a cleaning device, which is formed in the frame device and has at least one channel with an inlet opening and an outlet opening at a distance from the inlet opening, wherein the outlet opening of the channel is formed between the glass inner side and the frame inner side, and the channel is designed and formed in such a way that the glass inner side of the sight glass can be at least partially wetted with a medium fed into the channel by way of the inlet opening and leaving by way of the outlet opening.

2. The sight glass cover as claimed in claim 1, wherein the frame device has a frame outer edge and a frame inner edge at a distance from the frame outer edge, wherein, the frame inner edge is facing the sight glass and the frame outer edge is facing away from the sight glass, and the channel runs from the frame outer edge to the frame inner edge, and the inlet opening is formed on the frame outer edge, and the outlet opening is formed on the frame inner edge.

3. The sight glass cover as claimed in claim 2, wherein the channel is formed from the frame outer edge to the frame inner edge in a straight line.

4. The sight glass cover as claimed in claim 1, wherein the inlet opening of the channel has a connecting branch.

5. The sight glass cover as claimed in claim 2, wherein the outlet opening of the channel has on the frame inner edge a nozzle device with a nozzle.

6. The sight glass cover as claimed in claim 5, wherein the nozzle device has a nozzle frame with a distributor channel and a plurality of nozzles connected to the distributor channel, and the nozzle frame is arranged and/or fastened on the frame inner edge in such a way that the outlet opening of the channel arranged on the frame inner edge opens out into the distributor channel, and the nozzles are arranged and formed in such a way that the glass inner side of the sight glass can be at least partially wetted with a medium fed in by way of the inlet opening and leaving by way of the nozzles.

7. The sight glass cover as claimed in claim 6, wherein the nozzle frame has a nozzle frame inner edge and a nozzle frame outer edge at a distance from the nozzle frame inner edge, and the nozzle frame is arranged with its nozzle frame outer edge at least partially on the frame inner edge, and the nozzle frame inner edge is facing away from the frame inner edge, and the distributor channel is optionally formed as running around peripherally on the nozzle frame outer edge, and the plurality of nozzles respectively run from the distributor channel to the nozzle frame inner edge.

8. The sight glass cover as claimed in claim 5, wherein the distributor channel formed in the nozzle frame outer edge is a peripheral groove or a peripheral hollow fillet.

9. The sight glass cover as claimed in claim 6, wherein the outlet opening of the channel and the nozzles of the nozzle frame are arranged offset in relation to one another.

10. The sight glass cover as claimed in claim 1, wherein the glass inner side of the sight glass has a level surface, and the channel and/or the outlet opening and/or the nozzle is arranged and/or aligned with respect to the glass inner side at an angle () of between 1060.

11. The sight glass cover as claimed in claim 1, wherein the frame device is formed as circular.

12. The sight glass cover as claimed in claim 2, wherein the frame device has a frame outer side, which is arranged at a distance from the frame inner side and is facing away from the wall region surrounding the opening when a sight glass cover is placed on the opening, and a profiling is formed in a transitional region between the frame outer side and the frame inner edge, wherein the profiling is designed and formed for receiving the sight glass at least partially, optionally in a peripheral region of the glass edge.

13. The sight glass cover as claimed in claim 1, wherein the frame device has a plurality of channels.

14. The sight glass cover as claimed in claim 1, wherein the plurality of nozzles are arranged on the perimeter of the nozzle frame inner edge and/or the plurality of outlet openings are arranged on the perimeter of the frame device at regular intervals in relation to one another.

15. A sight glass cover with an integrated cleaning device as claimed in claim 1 for closing an opening in a vessel and/or pipe of a chemical production plant.

Description

[0031] The invention is explained below by way of example with reference to the accompanying figures on the basis of preferred exemplary embodiments, and the features specified below may constitute an aspect of the invention either on their own or in combination with one another. In the figures:

[0032] FIG. 1: shows a vertical section through a sight glass cover with an integrated cleaning device according to a preferred exemplary embodiment of the invention,

[0033] FIG. 2: shows a vertical section through the sight glass cover with a nozzle device according to the preferred exemplary embodiment of the invention,

[0034] FIG. 3: shows a horizontal section through a frame device of the sight glass cover, with an integrated cleaning device with a number of channels and a nozzle device according to the preferred exemplary embodiment of the invention,

[0035] FIG. 4: shows a vertical section through the sight glass cover with a nozzle device formed in a frame-like manner according to the preferred exemplary embodiment of the invention, and

[0036] FIG. 5: shows a horizontal section through the frame device of the sight glass cover with only one channel and one distributor channel in a nozzle frame of the nozzle device according to the preferred exemplary embodiment of the invention.

[0037] In FIG. 1, a vertical section through a sight glass cover 10 with an integrated cleaning device is shown. The sight glass cover 10 is flange-mounted on a pipe end portion 12, which has an opening 14, and consequently closes the opening 14 of the pipe end portion 12. It can also be seen that the sight glass cover 10 comprises a frame device 16 with a sight glass 18 enclosed by the frame device. The sight glass 18 has a glass inner side 20, which is facing the opening 14 of the pipe end portion 12. The frame device 16 has a frame inner side 32, which is facing away from the glass inner side 20 and is facing a wall area 34 of the pipe end portion 12 surrounding the opening 14 when a sight glass cover 10 is closing the opening 14. A cleaning device 22, which comprises a channel 24 that has an inlet opening 26 and an outlet opening 28 at a distance from the inlet opening 26, is formed in the frame device 16. The outlet opening 28 is arranged between the glass inner side 20 and the frame inner side 32. A medium 30 is fed to the channel 24 by way of the inlet opening 26, leaves by way of the outlet opening 28 and at least partially wets the glass inner side 20 of the sight glass 18. This is a way of providing a sight glass cover 10 with an integrated cleaning device 22 in the case of which the glass inner side 20 of the sight glass 18 can be cleaned in an easy way with a medium 30 introduced into the channel 24 by way of the inlet opening 26 when the sight glass cover 10 is closed.

[0038] Furthermore, the frame device 16 has a frame outer edge 36 and a frame inner edge 38 arranged parallel to and at a distance from the frame outer edge 36. The frame inner edge 38 is facing the sight glass 18 and the frame outer edge 36 is facing away from the sight glass 18. The channel 24 extends from the frame outer edge 36 to the frame inner edge 38 and has a straight path, which is formed by a bore. The inlet opening 26 is formed on the frame outer edge 36 and the outlet opening 28 is arranged on the frame inner edge 38.

[0039] In order to wet the glass inner side 20 of the sight glass 18 with the medium 30 as far as possible over its full surface area, the channel 24 and the outlet opening 28 are arranged at an angle =10 in relation to the plane of the glass inner side 20 of the sight glass 18.

[0040] In FIG. 2, a further variant of the sight glass cover 10 with an integrated cleaning device 22 is shown. By analogy with the sight glass cover 10 shown in FIG. 1, the sight glass cover 10 is flange-mounted on a pipe end portion 12 and closes the opening 14 of the pipe end portion 12. The channel 24 extends from the frame outer edge 36 to the frame inner edge 38 in a straight line. As a difference from the example shown in FIG. 1, the channel 24 is not arranged at an angle of 10 in relation to the plane of the glass inner side 20 of the sight glass 18. The channel 24 runs substantially parallel to the plane of the glass inner side 20 of the sight glass 18. A nozzle device 40 with a nozzle 42 is arranged on the outlet opening 28 formed at the frame inner edge 38. The nozzle 42 is arranged or formed with respect to the plane of the glass inner side 20 of the sight glass 18 at an angle =15, in order to spray the medium 30 introduced into the channel 24 by way of the inlet opening 26 and the medium 30 leaving the nozzle 42 onto the glass inner side 20 of the sight glass 18.

[0041] The direction in which the medium 30 is applied to the glass inner side 20 of the sight glass 18 depends on the angular setting of the nozzle 42. In this way, the channel 24 can be formed within the frame device 16 substantially independently of the plane of the glass inner side 20 of the sight glass 18.

[0042] In FIG. 3, a horizontal section through the frame device 16 is shown. The frame device 16 is formed as a circular ring and serves for closing a manhole in a vessel of a chemical production plant. Altogether, arranged at regular intervals from one another in the frame device 16 are four channels 24, which in each case extend radially from the frame outer edge 36 to the frame inner edge 38. A nozzle device 40 in the form of a nozzle frame 44 is arranged on the frame inner edge 38. The nozzle frame 44 has a plurality of nozzles 42, which adjoin the respective outlet openings 28. In this way, a medium 30 can be introduced into the respective channels 24 by way of the various inlet openings 26 and be sprayed by means of the nozzles 42, so that a wetting of the glass inner side of the sight glass (which cannot be seen in this section) as far as possible over its full surface area is made possible.

[0043] In FIG. 4, the sight glass cover 10 known from FIG. 2 is shown. As a difference from FIG. 2, the frame device 16 has only one channel 24 with an inlet opening 26 and an outlet opening 28. Furthermore, the nozzle frame 44 has a nozzle frame inner edge 46 and a nozzle frame outer edge 48, arranged parallel to and at a distance from the nozzle frame inner edge 46. The nozzle frame 44 is arranged with the nozzle frame outer edge 48 at least partially on the frame inner edge 38 and the nozzle frame inner edge 46 is facing away from the frame inner edge 38. The nozzle frame 44 has a distributor channel 50, which is arranged running around peripherally on the nozzle frame outer edge 48. From the distributor channel 50 there extend a plurality of nozzles 42 to the nozzle frame inner edge 46. In this way, a number of nozzles 42 can be served by means of just one channel 24, so that a wetting of the glass inner side 20 of the sight glass 18 with the medium as far as possible over its full surface area is possible. It can also be seen that the inlet opening 26 of the channel 24 on the frame outer edge 36 has a connecting branch 52, by way of which a connecting unit with the medium can be connected. The connecting branch 52 has a valve, so that the feeding of the medium into the channel 24 can be controlled by means of the valve.

[0044] FIG. 4 also illustrates the arrangement of the sight glass 18 in the frame device 16. The frame device 16 has a frame outer side 54, which is arranged parallel to and at a distance from the frame inner side 32. The frame outer side 54 is facing away from the wall region 34 of the pipe end portion 12 surrounding the opening 14 when the sight glass cover 10 is placed on the opening 14. A profiling 56 for receiving the sight glass 18 is formed in the transitional region between the frame outer side 54 and the frame inner edge 38. The sight glass 18 lies with a peripheral region of the glass edge 57 in the profiling. A seal 58 is formed between the peripheral region of the glass edge 57 and the profiling. The sight glass 18 is usually adhesively bonded in the profiling 56 or is provided with a sealing ring cut to size for this.

[0045] The frame device 16 has a number of bores 60, which extend from the frame outer side 54 to the frame inner side 32 and are in each case designed for receiving a fastening means 62. The sight glass cover 10 is flange-mounted on the pipe end portion 12 by way of the fastening means 62 and by means of a flange 64. The sight glass 20 is in this case additionally fixed by means of the flange 64.

[0046] FIG. 5 shows a horizontal section through the frame device 16 of the sight glass cover 10 shown in FIG. 4. This horizontal section illustrates the just one channel 24, which extends from the frame outer edge 36 to the frame inner edge 38 and opens out into the distributor channel 50 of the nozzle frame 44 arranged on the inner edge 38. Like the frame device 16, the nozzle frame 44 is formed as a circular ring. The distributor channel 50 is formed on the nozzle frame outer edge 48 as running around radially peripherally.

[0047] The nozzles 42 are arranged on the perimeter of the nozzle frame inner edge 46 at regular intervals from one another and extend from the distributor channel 50 to the nozzle frame inner edge 46. The nozzles 42 are arranged offset in relation to the channel 24. In this way, a medium introduced into the channel 24 by way of the inlet opening 26 flows into the distributor channel 50. From there, the medium flows into the nozzles 42. The arrangement of the nozzles 42 offset in relation to the channel 24 enforces a distribution of the medium in the distributor channel, so that the plurality of nozzles 42 are activated. Consequently, a wetting of the glass inner side of the sight glass (which cannot be seen in this section) as far as possible over its full surface area can be accomplished and cleaning of the glass inner side as far as possible over its full surface area can be achieved.

DESIGNATIONS

[0048] 10 sight glass cover [0049] 12 pipe end portion [0050] 14 opening [0051] 16 frame device [0052] 18 sight glass [0053] 20 glass inner side [0054] 22 cleaning device [0055] 24 channel [0056] 26 inlet opening [0057] 28 outlet opening [0058] 30 medium [0059] 32 frame inner side [0060] 34 wall area [0061] 36 frame outer edge [0062] 38 frame inner edge [0063] 40 nozzle device [0064] 42 nozzle [0065] 44 nozzle frame [0066] 46 nozzle frame inner edge [0067] 48 nozzle frame outer edge [0068] 50 distributor channel [0069] 52 connecting branch [0070] 56 profiling [0071] 57 glass edge [0072] 58 seal [0073] 60 bore [0074] 62 fastening means [0075] 64 flange