Sight glass capable of being cleaned online

Abstract

The utility model provides a sight glass capable of being cleaned on line, and belongs to the technical field of sight glass. The problem that an existing sight glass is poor in cleaning effect is solved. The sight glass is installed on the connecting edge, an air inlet channel is formed in the connecting edge, an annular flow guide groove is further formed in the connecting edge, the flow guide groove is located in the circumferential edge of the sight glass, an annular flow guide wall is arranged in the flow guide groove, the flow guide wall inclines towards the inner surface of the sight glass, and the flow guide groove is communicated with the air inlet channel. The sight glass capable of being cleaned online has the advantage of being good in cleaning effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of sight glasses and relates to a sight glass that can be cleaned online. Background Art

[0002] Sight glasses are a common component on chemical containers. When the equipment is running, the manufacturer needs to observe the inside of the equipment through the sight glass to understand the actual production situation of the product and the operation status of the equipment. After the equipment has been used for a period of time, some materials will be adsorbed on the inner surface of the sight glass, which will weaken the observation effect of the sight glass and make it impossible to accurately judge the internal situation of the equipment. Therefore, the sight glass needs to be flushed.

[0003] Existing mirrors with flushing, for example, Chinese patent literature discloses a mirror hand hole [patent number: 202020392616.9; application publication number: CN211653260U], which includes a quick-opening end, a mirror flange, a mirror and a hand hole cover, the quick-opening end is detachably connected to the mirror flange, and the mirror flange is connected to the hand hole cover by bolts; a first through hole is provided in the middle of the mirror flange, a first mounting groove adapted to the mirror is provided at the top of the first through hole on the mirror flange, a second through hole is provided in the middle of the hand hole cover, a second mounting groove adapted to the mirror is provided at the bottom of the second through hole on the hand hole cover, the first mounting groove and the second mounting groove are combined to form an installation cavity, the mirror is arranged in the installation cavity and is extruded fit with the first mounting groove of the mirror flange and the second mounting groove of the hand hole cover.

[0004] The sight glass hand hole of this structure and the purge hole include a boost section and a pressure stabilizing section arranged from the outside to the inside. The diameter of the boost section of the purge hole decreases linearly from the outside to the inside. The pressure stabilizing section of the purge hole is cylindrical. The central axis of the pressure stabilizing section of the purge hole is parallel to the inner surface of the sight glass, which results in the nitrogen coming out of the pressure stabilizing section of the purge hole not directly blowing on the inner surface of the sight glass, making it difficult for dust adhering to the inner surface of the sight glass to fall off, resulting in poor cleaning effect of the sight glass. Summary of the invention

[0005] The purpose of the utility model is to solve the above problems existing in the prior art and to propose an online cleaning mirror, the technical problem to be solved is how to improve the cleaning effect of the mirror.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a kind of online cleanable sight glass, the sight glass is installed on a connecting edge, the connecting edge has an air inlet passage, and is characterized in that the connecting edge also has an annular guide groove, the guide groove is located at the circumferential edge of the sight glass, the guide groove has an annular guide wall, the guide wall is inclined inwardly toward the inner surface of the sight glass, and the guide groove is connected to the air inlet passage.

[0007] When in use, nitrogen is blown to the guide groove through the air inlet channel. The guide groove is annular and allows nitrogen to flow to the circumferential edge of the sight glass. The guide wall is inclined inwardly toward the inner surface of the sight glass. Under the guidance of the guide wall, the nitrogen is better and more concentratedly blown to the inner surface of the sight glass from all sides, so that the wind force blowing to the inner surface of the sight glass is greater, so that the dust on the inner surface of the sight glass is easy to fall off, improving the cleaning effect of the sight glass. Moreover, since nitrogen is filled for cleaning, online cleaning can be performed without stopping the machine.

[0008] In the above-mentioned online cleanable mirror, the guide groove also includes an annular outer wall, the outer wall is perpendicular to the inner surface of the mirror, and the circumferential outer edge of the guide wall is directly connected to the edge of the outer wall away from the mirror. This structure allows the nitrogen entering the guide groove to be better guided by the guide wall, so that the nitrogen can be better and more concentratedly blown to the inner surface of the mirror, so that the dust on the inner surface of the mirror is easy to fall off, improving the cleaning effect of the mirror.

[0009] In the above-mentioned online cleanable mirror, the diameter of the outer wall is smaller than the outer diameter of the mirror. This structure makes the guide groove located in the inner surface of the mirror along the direction of the plane where the inner surface of the mirror is located, ensuring that the nitrogen can be blown to the inner surface of the mirror better and more concentratedly, so that the dust on the inner surface of the mirror is easy to fall off, and the cleaning effect of the mirror is improved.

[0010] In the above-mentioned online cleanable mirror, the angle between the guide wall and the inner surface of the mirror is between 15-45 degrees. This angle ensures that the nitrogen can be blown to the inner surface of the mirror better and more concentratedly, so that the dust on the inner surface of the mirror is easy to fall off, thereby improving the cleaning effect of the mirror.

[0011] In the above-mentioned online cleanable sight glass, there is an annular sealing gasket between the sight glass and the edge, the sealing gasket is located outside the circumference of the guide groove, and the sealing gasket is arranged adjacent to the guide groove. The setting of the sealing gasket plays a sealing role and improves the sealing performance.

[0012] In the above-mentioned online cleanable sight glass, the air inlet channel includes a first channel and a second channel, the first channel and the second channel are perpendicular to each other, the second channel is arranged along the axial direction of the edge, and the second channel is arranged close to the inner side wall of the edge, the outer end of the first channel is connected to the outside, the inner end is connected to one end of the second channel, and the other end of the second channel is connected to the guide groove. This structure makes the air inlet channel design reasonable.

[0013] Compared with the prior art, the online cleaning mirror provided by the utility model has the following advantages:

[0014] 1. An annular guide groove is provided in the joint, and the guide groove guides the nitrogen to the circumferential edge of the sight glass, so that the nitrogen can be blown toward the inner surface of the sight glass from all sides better and more concentratedly, so that the wind force blowing toward the inner surface of the sight glass is stronger, so that the dust on the inner surface of the sight glass is easy to fall off, thereby improving the cleaning effect of the sight glass.

[0015] 2. The guide wall in the edge guide groove is inclined inwardly toward the inner surface of the sight glass. Under the guidance of the guide wall, the nitrogen can be blown toward the inner surface of the sight glass from all sides better and more concentratedly, so that the wind force blowing toward the inner surface of the sight glass is stronger, so that the dust on the inner surface of the sight glass is easy to fall off, thereby improving the cleaning effect of the sight glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the sight glass that can be cleaned online.

[0017] Figure 2 The sight glass can be cleaned online Figure 1 Magnified image of area A.

[0018] Figure 3 The sight glass can be cleaned online Figure 1 Magnified image of area B.

[0019] In the figure, 1, sight mirror; 2, connecting edge; 3, air intake channel; 31, first channel; 32, second channel; 4, guide groove; 41, guide wall; 42, outer wall; 5, sealing gasket. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figure 1 As shown, the online cleaning mirror 1 is installed on the edge 2, and the edge 2 has an air inlet channel 3 and an annular guide groove 4. The air inlet channel 3 includes a first channel 31 and a second channel 32. The first channel 31 and the second channel 32 are perpendicular to each other. The second channel 32 is arranged along the axial direction of the edge 2, and the second channel 32 is arranged close to the inner side wall of the edge 2. The outer end of the first channel 31 is connected to the outside, and the inner end is connected to one end of the second channel 32. Figure 2 As shown, the other end of the second channel 32 is connected to the guide groove 4.

[0022] The guide groove 4 is located at the circumferential edge of the mirror 1, and has an annular guide wall 41 and an annular outer wall 42. Figure 3As shown, the guide wall 41 is inclined inwardly toward the inner surface of the mirror 1. In this embodiment, the angle between the guide wall 41 and the inner surface of the mirror 1 is 21°. In actual production, the angle between the guide wall 41 and the inner surface of the mirror 1 can be between 15° and 45°. The outer wall 42 is perpendicular to the inner surface of the mirror 1, the diameter of the outer wall 42 is smaller than the outer diameter of the mirror 1, and the circumferential outer edge of the guide wall 41 is directly connected to the edge of the outer wall 42 away from the mirror 1.

[0023] An annular sealing gasket 5 is provided between the viewing mirror 1 and the connecting edge 2 . The sealing gasket 5 is located on the circumferential outer side of the guide groove 4 , and the sealing gasket 5 is disposed adjacent to the guide groove 4 .

[0024] When in use, the nitrogen is blown to the guide groove 4 through the air inlet channel 3, and then blown to the inner surface of the mirror 1 along the guide wall 41, so as to blow off the dust on the inner surface of the mirror 1.

[0025] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0026] Although the terms such as mirror 1, edge 2, air inlet passage 3, first passage 31, second passage 32, guide groove 4, guide wall 41, outer wall 42, sealing pad 5 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An online cleanable sight glass, the sight glass (1) being mounted on a connection edge (2), the connection edge (2) having an air inlet passage (3), characterized in that: The connecting edge (2) also has an annular guide groove (4), the guide groove (4) is located at the circumferential edge of the sight glass (1), the guide groove (4) has an annular guide wall (41), the guide wall (41) is arranged obliquely inwardly toward the inner surface of the sight glass (1), and the guide groove (4) is connected to the air inlet channel (3).

2. The online cleanable sight glass according to claim 1, characterized in that: The guide groove (4) further comprises an annular outer wall (42), wherein the outer wall (42) is perpendicular to the inner surface of the sight glass (1), and the circumferential outer edge of the guide wall (41) is directly connected to the edge of the outer wall (42) away from the sight glass (1).

3. The online cleanable sight glass according to claim 2, characterized in that: The diameter of the outer wall (42) is smaller than the outer diameter of the sight glass (1).

4. An online cleanable sight glass according to claim 1, 2 or 3, characterized in that: The angle between the guide wall (41) and the inner surface of the viewing mirror (1) is between 15° and 45°.

5. An online cleanable sight glass according to claim 1, 2 or 3, characterized in that: An annular sealing gasket (5) is provided between the viewing mirror (1) and the connecting edge (2); the sealing gasket (5) is located on the circumferential outer side of the guide groove (4), and the sealing gasket (5) is arranged adjacent to the guide groove (4).

6. An online cleanable sight glass according to claim 1, 2 or 3, characterized in that: The air intake channel (3) comprises a first channel (31) and a second channel (32); the first channel (31) and the second channel (32) are perpendicular to each other; the second channel (32) is arranged along the axial direction of the connecting edge (2); and the second channel (32) is arranged close to the inner side wall of the connecting edge (2); the outer end of the first channel (31) is connected to the outside, and the inner end is connected to one end of the second channel (32); and the other end of the second channel (32) is connected to the guide groove (4).

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