CN213089456U - Breakage-proof flow observation sight glass - Google Patents
Breakage-proof flow observation sight glass Download PDFInfo
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- CN213089456U CN213089456U CN202022134393.9U CN202022134393U CN213089456U CN 213089456 U CN213089456 U CN 213089456U CN 202022134393 U CN202022134393 U CN 202022134393U CN 213089456 U CN213089456 U CN 213089456U
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Abstract
The utility model discloses a breakage-proof flow observation sight glass, top board and holding down plate including two symmetries and interval setting to and set up the glass pipe between top board and holding down plate, top board and holding down plate all communicate with each other with the glass pipe, the outside of glass pipe is still overlapped and is equipped with a protective tube, the upper and lower both ends of protective tube respectively with top board and holding down plate between sealing connection, the upper and lower both ends of glass pipe have the clearance between top board and holding down plate respectively, the glass pipe overlaps respectively on the perisporium at both ends about neighbouring and is equipped with a sealing washer, the inner wall of protective tube has the ring channel that supplies the sealing washer to inlay the establishment in the position department shaping that corresponds the sealing washer, the glass pipe inlays to establish with slidable mounting in the ring channel on the protective tube through the sealing washer, the observation window that has visual glass pipe on the protective tube. The utility model discloses simple structure plays the effect of protection glass pipe, avoids glass pipe to damage because of the atress or by the striking.
Description
Technical Field
The utility model relates to an observation mirror technical field, concretely relates to breakage-proof flow observation sight glass.
Background
The glass tube observation sight glass is one of the main parts of industrial pipeline equipment, and in the pipeline of industrial production equipment of petroleum, chemical industry, medicine and food, etc. the glass tube observation sight glass can observe the flow and reaction condition of liquid, gas, steam and other medium in the pipeline at any time, so that it can monitor production and reduce production accident. And current glass pipe flow observation sight glass, as shown in figure 2, be the glass tube structure between two clamp plates, the upper and lower both ends of glass pipe respectively with last clamp plate between fixed connection, concrete flow observation sight glass is when the erection joint, two clamp plates of observation sight glass respectively with two outer end between the pipeline adopt the welding mode intercommunication fixed usually, thereby guarantee the continuity and the leakproofness of pipeline, but after welding between pipeline and last clamp plate, can stress release after the pipeline welding cools off, the pipeline rebounds toward a direction, the junction of clamp plate can misplace, lead to the glass pipe atress damage in the sight glass, thereby cause the pipeline to leak.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: the utility model provides a breakage-proof flow observation sight glass, simple structure plays the effect of protection glass pipe, avoids glass pipe to damage because of the atress or by the striking.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a breakage-proof flow observation sight glass, which comprises an upper pressure plate and a lower pressure plate which are symmetrically arranged at intervals, and a glass tube arranged between the upper pressure plate and the lower pressure plate, wherein the upper pressure plate and the lower pressure plate are both communicated with the glass tube, the upper pressure plate and the lower pressure plate are tightened and fixed through a stud bolt, a protective tube is sleeved outside the glass tube, the upper end and the lower end of the protection tube are respectively connected with the upper pressing plate and the lower pressing plate in a sealing way, gaps are respectively arranged between the upper end and the lower end of the glass tube and the upper pressing plate and between the upper end and the lower end of the glass tube and the lower pressing plate, the glass tube is respectively sleeved with a sealing ring on the peripheral wall adjacent to the upper end and the lower end, the inner wall of the protection tube is formed with an annular groove for embedding the sealing ring at the position corresponding to the sealing ring, the glass tube is embedded in the annular groove through a sealing ring to be slidably mounted on the protection tube, and radial sealing between the glass tube and the protection tube is realized through the sealing ring; the protective tube is provided with a viewing window for viewing the glass tube.
The utility model discloses in, compare in traditional observation mirror structure, through adding a protection tube of taking the observation window outside the glass tube in this scheme, leave certain clearance between the both ends of glass pipe and top board and the holding down plate, the sealing washer through the O type between glass pipe and protection tube realizes radial seal, and glass pipe passes through sealing washer slidable mounting on the protection tube, is connected respectively between protection tube and top board and the holding down plate fixedly, has replaced the glass pipe installation in other words to be fixed on top board and holding down plate. Therefore, when the observation sight glass bears the pipeline welding stress, the observation sight glass is directly borne by the protective tube when the observation sight glass bears the pipeline stress, the glass tube on the inner side cannot be directly stressed, and the glass tube cannot be cracked due to stress release after the pipeline is welded and cooled naturally; and the protective tube is provided with an observation window for observing the glass tube, so that the flow in the glass tube can be still observed, and the function of an observation sight glass is achieved. During the concrete implementation, the maximum distance between the corresponding end of the glass tube and the adjacent upper pressing plate or lower pressing plate is smaller than the distance between the corresponding sealing ring and the adjacent upper pressing plate or lower pressing plate, so that the glass tube and the protection tube are always in a radial sealing state even if the glass tube has a certain sliding space in the protection tube.
Particularly, when the observation mirror with a larger diameter is used, for example, when the diameter of the glass tube is 100-200mm, the bearing capacity of the observation mirror is greatly improved through the protection tube, and the service life of the observation mirror is prolonged.
Preferably, the protective tube is a metal tube, and a plurality of windows are arranged on the protective tube at equal intervals along the circumferential direction of the protective tube to form the observation window.
Like this, the rigidity of metal protection tube is great and have certain plasticity, and when the observation mirror bore pipeline welding stress, the protection tube self rigidity of metal material is great, is enough to bear the welding stress of pipeline, compares in the fragile of glass pipe moreover, and the protection tube slight deformation that takes place in the compressive stress that elastic recovery deformation within range receives also can not influence the structural performance of protection tube, consequently the metal protection tube more can bear the welding stress of pipeline. The observation window is formed by the plurality of windows arranged on the protection tube, so that the flow direction of the glass tube in the protection tube can be seen through the windows on the protection tube, and the function of the observation window is achieved.
Preferably, the window is elliptical, and the long axis of the window is in the same direction as the axial direction of the protection tube.
In this way, since the flow rate in the tube flows along the axial direction of the glass tube, the long axis of the window is in the same direction as the axial direction of the protective tube, and the viewing effect of the glass tube in the viewing mirror is better.
As optimization, top board and holding down plate are the ring flange, the shaping of position department that top board and holding down plate contacted on the upper and lower tip of protection tube has annular mounting groove, be equipped with the asbestos pad in the mounting groove to realize under stud's the taut effect that the protection tube upper and lower end respectively with the top board and hold down between the clamp plate sealed.
Like this, because the ring flange is the metal material, in order to guarantee the leakproofness between protection tube and the ring flange, the mounting groove department that the protection tube formed through processing on the ring flange to guarantee the leakproofness of the contact between protection tube and the top board down through the asbestos pad that sets up in the mounting groove, it is taut through stud at last, thereby guaranteed the leakproofness between protection tube upper and lower extreme respectively and top board and the bottom board.
Preferably, the bolts are stud bolts, and the number of the bolts between the upper pressure plate and the lower pressure plate is four, and the bolts are uniformly distributed on the outer side of the protective pipe.
Like this, the nut of the both ends department of bolt all is located the outside of top board and holding down plate, through four bolts, can play sufficient take-up to between top board and the holding down plate like this, has guaranteed overall structure nature and sealing performance between top board and the protection tube, and four bolt evenly distributed can play the stress of evenly undertaking between top board and the holding down plate in the outside of protection tube moreover.
To sum up, the beneficial effects of the utility model reside in that: the utility model discloses well protective tube has replaced the installation of glass pipe to be fixed on top board and holding down plate. Therefore, when the observation sight glass bears the welding stress of the pipeline, the observation sight glass is directly borne by the protective tube when the observation sight glass bears the pipeline stress, and the glass tube on the inner side can not be cracked due to stress; and the protective tube is provided with an observation window for observing the glass tube, so that the flow in the glass tube can be still observed, and the function of an observation sight glass is achieved.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a prior art drawing.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Reference numerals in the drawings of the specification include: glass tube 1, top board 2, holding down plate 3, bolt 4, protection tube 5, sealing washer 6, observation window 7.
In this embodiment, as shown in fig. 1, the shatter-proof viewing mirror comprises an upper pressing plate 2 and a lower pressing plate 3 which are symmetrically arranged at an interval, and a glass tube 1 arranged between the upper pressing plate 2 and the lower pressing plate 3, wherein the upper pressing plate 2 and the lower pressing plate 3 are both communicated with the glass tube 1, the upper pressing plate 2 and the lower pressing plate 3 are tightened and fixed by a stud bolt 4, the outer side of the glass tube 1 is further sleeved with a protection tube 5, the upper end and the lower end of the protection tube 5 are respectively connected with the upper pressing plate 2 and the lower pressing plate 3 in a sealing manner, the upper end and the lower end of the glass tube are respectively provided with a gap between the upper pressing plate 2 and the lower pressing plate 3, the peripheral walls of the upper end and the lower end of the glass tube 1 are respectively sleeved with a sealing ring 6, the inner wall of the protection tube 5 is formed with an annular groove for the sealing ring 6 to be embedded in at a position corresponding to the sealing ring 6, the glass tube 1 is embedded in the annular groove by the, radial sealing between the glass tube 1 and the protection tube 5 is realized through a sealing ring 6; the protective tube 5 has a viewing window 7 for viewing the glass tube.
The utility model discloses in, compare in traditional sight glass structure, through adding a protection tube 5 of taking observation window 7 in glass pipe 1 in this scheme, leave certain clearance between glass pipe 1's both ends and top board 2 and the holding down plate 3, seal ring 6 through the O type between glass pipe 1 and protection tube 5 realizes radial seal, and glass pipe 1 passes through seal ring 6 slidable mounting on protection tube 5, it is fixed to be connected respectively between protection tube 5 and top board 2 and the holding down plate 3, protection tube 5 has replaced glass pipe 1 to install fixedly on top board 2 and holding down plate 3 in other words. Therefore, when the observation sight glass bears the pipeline welding stress, the observation sight glass is directly borne by the protective tube 5 when the observation sight glass bears the pipeline stress, the glass tube 1 on the inner side is not directly stressed, and the glass tube is naturally not cracked due to stress release after the pipeline is welded and cooled; moreover, the protective tube 5 is provided with an observation window 7 for observing the glass tube, so that the flow in the glass tube 1 can be observed still, and the device can play a role of an observation sight glass. During the concrete implementation, the maximum distance between the corresponding end of the glass tube and the adjacent upper pressing plate or lower pressing plate is smaller than the distance between the corresponding sealing ring and the adjacent upper pressing plate or lower pressing plate, so that the glass tube and the protection tube are always in a radial sealing state even if the glass tube has a certain sliding space in the protection tube.
Particularly, when the observation mirror with a larger diameter is used, for example, when the diameter of the glass tube 1 is 100-200mm, the bearing capacity of the observation mirror is greatly improved through the protection tube 5, and the service life of the observation mirror is prolonged.
In a specific embodiment, the protection tube 5 is a metal tube, and a plurality of windows are opened on the protection tube 5 at equal intervals along a circumferential direction thereof to form the observation window 7.
Like this, the rigidity of metal protection tube is great and have certain plasticity, and when the observation mirror bore pipeline welding stress, the protection tube 5 self rigidity of metal material is great, is enough to bear the welding stress of pipeline, compares in the fragile of glass pipe 1 in addition, and the protection tube 5 slight deformation that takes place in the elastic recovery deformation within range pressure stress that receives also can not influence the structural performance of protection tube 5, consequently metal protection tube 5 more can bear the welding stress of pipeline. The observation window 7 is formed by a plurality of windows formed in the protective tube 5, and the flow direction of the glass tube in the protective tube 5 can be seen through the windows in the protective tube 5, thereby playing a role of the observation window 7.
In a specific embodiment, the window is oval, the long axis of the window being in the same direction as the axial direction of the protective tube 5.
In this way, since the flow rate in the tube flows in the axial direction of the glass tube 1, the long axis of the window is in the same direction as the axial direction of the protective tube 5, and the viewing effect on the glass tube is better in the scope.
In the concrete implementation mode, top board 2 and holding down plate 3 are the ring flange, the shaping of the position department that the tip contacted about the protective tube of top board 2 and holding down plate 3 has annular mounting groove, be equipped with the asbestos pad in the mounting groove to realize under stud 4 the take-up effect the protective tube 5 the upper and lower ends respectively with the top board 2 with hold down plate 3 between sealed.
Like this, because the ring flange is the metal material, in order to guarantee the leakproofness between protection tube 5 and the ring flange, the mounting groove department that protection tube 5 formed through processing on the ring flange to the leakproofness of the contact between protection tube and the top board down is guaranteed to the asbestos pad that sets up through the mounting groove, and is taut through stud at last, thereby has guaranteed the leakproofness between protection tube upper and lower extreme respectively and top board and the bottom board.
In the specific implementation process, the bolts 4 are stud bolts, and the number of the bolts 4 between the upper pressure plate 2 and the lower pressure plate 3 is four, and the bolts are uniformly distributed outside the protective pipe 5.
Like this, the nut of bolt 4's both ends department all is located the outside of top board 2 and holding down plate 3, through four bolts 4, can play sufficient taut effect between top board 2 and the holding down plate 3 like this, has guaranteed overall structure nature and sealing performance between top board and the protection tube 5, and four bolts 4 evenly distributed can play the stress of evenly undertaking between top board 2 and the holding down plate 3 in the outside of protection tube 5 moreover.
Referring to fig. 2, which is a drawing of a prior art observation mirror, the upper and lower ends of a glass tube 2 in the prior art are directly connected to an upper pressing plate and a lower pressing plate.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a breakage-proof flow observation sight glass, includes top board and the holding down plate that two symmetries and interval set up to and set up the glass pipe between top board and holding down plate, top board and holding down plate all communicate with each other with the glass pipe, and through the taut fixed of stud, its characterized in that between top board and the holding down plate: the glass tube is characterized in that a protective tube is further sleeved on the outer side of the glass tube, the upper end and the lower end of the protective tube are respectively connected with the upper pressing plate and the lower pressing plate in a sealing mode, gaps are formed between the upper end and the lower end of the glass tube and the upper pressing plate and between the upper pressing plate and the lower pressing plate, sealing rings are respectively sleeved on the peripheral walls of the glass tube adjacent to the upper end and the lower end of the glass tube, annular grooves for the embedding of the sealing rings are formed in the inner wall of the protective tube at positions corresponding to the sealing rings, the glass tube is embedded in the annular grooves through the sealing rings to be installed on the protective tube in a sliding mode, and radial; the protective tube is provided with a viewing window for viewing the glass tube.
2. The shatterproof flow sight glass of claim 1, wherein: the protective tube is a metal tube, and a plurality of windows are arranged on the protective tube at equal intervals along the circumferential direction of the protective tube to form the observation window.
3. The shatterproof flow sight glass of claim 2, wherein: the window is oval, and the long axis of the window is in the same direction as the axial direction of the protection tube.
4. The shatterproof flow sight glass of claim 1, wherein: the utility model discloses a protection pipe, including protection pipe, upper pressure plate, holding down plate, mounting groove, the position department shaping that the upper pressure plate and holding down plate contacted about the protection pipe has annular mounting groove, be equipped with the asbestos pad in the mounting groove to realize under stud's take-up effect that the protection pipe upper and lower end respectively with the top pressure plate with down between the holding down plate sealed.
5. The shatterproof flow sight glass of claim 1, wherein: the number of the stud bolts between the upper pressing plate and the lower pressing plate is four, and the stud bolts are uniformly distributed on the outer side of the protective tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022134393.9U CN213089456U (en) | 2020-09-25 | 2020-09-25 | Breakage-proof flow observation sight glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022134393.9U CN213089456U (en) | 2020-09-25 | 2020-09-25 | Breakage-proof flow observation sight glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213089456U true CN213089456U (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022134393.9U Active CN213089456U (en) | 2020-09-25 | 2020-09-25 | Breakage-proof flow observation sight glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213089456U (en) |
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2020
- 2020-09-25 CN CN202022134393.9U patent/CN213089456U/en active Active
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